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Kanstrup Bailey opublikował 5 miesięcy, 2 tygodnie temu
As one of the biomarkers of liquid biopsy, circulating tumor cells (CTCs) provides important clinical information for cancer diagnosis. However, accurate separation and identification of CTCs remains a great deal of challenge. In present work, we developed novel dopamine-functionalized hyaluronic acid microspheres (HA-DA microspheres) to capture CD44-overexpressing CTCs. The dopamine was grafted onto the hyaluronic acid chain, which was polymerized and cross-linked by oxidation of the catechol groups. Afterwards, a facile microfluidic chip was designed and developed to fabricate the HA-DA microspheres with a diameter of about 45 μm. Our results showed that the CD44+ cells (i.e., HeLa, HepG2, A549, MCF-7 and DU-145 cells) could be selectively captured. Then a double-layer microfluidic filter (DLMF) was fabricated for dynamic isolation and detection of CTCs in blood samples. Many slit openings with 15 μm in height were designed to allow white blood cells to clear away, while the microspheres with CTCs were intercepted in the DLMF, which achieved effective separation of CTCs from blood cells. The approach exhibited high capture efficiency even at the cell density as low as 10 cells/mL. We believe the DLMF integrated with HA-DA microspheres could be a promising approach for isolation and detection of CD44-overexpressing CTCs, which is useful for prognosis and early metastasis of cancer patients.
Transcatheter arterial chemoembolization (TACE) is extensively used in the treatment of advanced hepatocellular carcinoma (HCC). However, the efficacy of TACE is usually limited to secondary tumor hypoxia and hypoxia-related tumor angiogenesis.
In this study, poly(lactic-co-glycolic acid) (PLGA) microspheres (SOR-CAT-PLGA MSs) encapsulating sorafenib (SOR) and catalase (CAT) were prepared by double-emulsion solvent diffusion method. Sorafenib inhibits tumor angiogenesis, and catalase decomposes hydrogen peroxide (H
O
) to generate oxygen in the tumor.
In vitro and in vivo, SOR -CAT-PLGA MSs could significantly improve the efficacy of hepatic artery embolization in the treatment of rabbit VX2 liver tumors, regulate tumor hypoxia and immunosuppressive microenvironment, then achieved near-complete and rapid necrosis of liver tumors.
The application of new SOR -CAT-PLGA MSs in hepatic artery chemoembolization of rabbit VX2 liver tumor is a promising approach to improve the therapeutic effect of liver tumors and has a broad clinical application prospect.
The application of new SOR -CAT-PLGA MSs in hepatic artery chemoembolization of rabbit VX2 liver tumor is a promising approach to improve the therapeutic effect of liver tumors and has a broad clinical application prospect.Type 1 diabetes mellitus (T1D) is a lifelong autoimmune disorder that is increasingly prevalent in populations worldwide. As well as affecting adults, T1D is one of the most prevalent chronic childhood disorders. Several lines of evidence point to dysregulation of both cellular and humoral immune responses in this disorder. Several genetic loci have been associated with risk of T1D, implying the presence of a complex multifactorial pattern of inheritance for this disorder. Moreover, recent studies have reported dysregulation of long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) in animal models of T1D or clinical samples. Several immune-related molecules and pathways such as NF-κB, PI3K/Akt/FOXO, JAK, MAPK, mTOR and STAT pathways are regulated by non-coding RNAs in the context of T1D. Improved understanding of the role of lncRNAs and miRNAs in the pathogenesis of T1D would facilitate design of preventive therapeutic modalities. In the current review, we summarize the results of animal and human studies that report dysregulation of these transcripts and their function in T1D.Inflammatory bowel disease (IBD) is chronic inflammatory disorder of the gastrointestinal (GI) tract which pose significant social and economic burden on health system. Crohn’s disease (CD) and ulcerative colitis (UC) are two main classes of IBD which seem to share genetic susceptibly factors at least to some extent. Abnormal immune responses and dysregulation of pre-inflammatory cytokines have been observed in patients with IBD. More recently, several studies have indicated abnormal function and expression levels of a number of non-coding RNAs including both microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). Not surprisingly, dysregulated miRNAs and lncRNAs were mostly enriched in pathways that regulate immune responses such as NF-κB pathway and those influence activity and differentiation of Th17 cells. In the current review, we aim at exploration of the role of miRNAs and lncRNAs in the pathophysiology of IBD. We first summarize the results of studies which reported aberrant expression of these transcripts in colonic tissues or plasma samples of patients with IBD. Then, we discuss the potential of these transcripts as diagnostic markers or therapeutic targets in this regard.Special attention is required when pharmacological treatment is indicated for a pregnant woman. P-glycoprotein (MDR1) is a well-known transporter localized in the maternal blood-facing apical membrane of placental syncytiotrophoblast and is considered to play an important role in protecting the developing fetus. Maraviroc, a MDR1 substrate that is registered for treatment of HIV infection, shows a low toxicity profile, suggesting favorable tolerability also if administered to pregnant women. Nevertheless, there is only poor understanding to date regarding the extent to which it permeates across the placental barrier and what are the transport mechanisms involved. Endeavoring to clarify the passage of maraviroc across placenta, we used in this study the method of closed-circuit perfusion of maraviroc across human placental cotyledon. The data obtained confirmed slight involvement of MDR1, but they also suggest possible interaction with other transport system(s) working in the opposite direction from that of MDR1. Complementary in vitro studies, including cellular experiments on choriocarcinoma BeWo cells as well as transporter-overexpressing MDCKII and A431 cell lines and accumulation in placental fresh villous fragments, revealed maraviroc transport by MRP1, OATP1A2, and OATP1B3 transporters. Based on mRNA expression data in the placental tissue, isolated trophoblasts, and fetal endothelial cells, especially MRP1 and OATP1A2 seem to play a crucial role in cooperatively driving maraviroc into placental tissue. By the example of maraviroc, we show here the important interplay of transporters in placental drug handling and its possibility to overcome the MDR1-mediated efflux.Gastrointestinal tumor (GIT) is a common malignant tumor of the digestive system, which seriously threatens people’s health and life. With the deepening of the study on the mechanism of tumor immune escape, programmed death receptor ligand 1 (PD-L1) has been proved to interact with the tumor microenvironment to mediate tumor immune escape. PD-L1 inhibitor is a hot spot in tumor immunotherapy in recent years, which can restore the activity of T cells, enhance the body’s ability of immune response, and ultimately enable the immune system to effectively identify and kill gastric cancer cells, then achieve long-term tumor remission in patients with GITs. At present, variety of PD-L1 inhibitors such as pembrolizumab, nivolumab and avelumab have been approved for the market, and they have achieved good results in clinical studies on the GIT. This paper reviews the progress of PD-1/PD-L1 immunotherapy in GITs which include gastric cancer, colon cancer and rectal cancer.Platinum-based drugs, used in treating tumors, cause numerous undesirable effects in patients, like neuropathic pain, hypersensitivity, reddening, pruritus and rash. Changes in Na+ transport modify local osmolality and contribute to the initiation of hypersensitivity and allergy. They are also associated with stimulation of C-fibres and hyperalgesia. Cl- transport is essential for regulation of sweat composition and the migration of immunocompetent cells. The aim of the conducted study was to assess the effect of a cisplatin solution on the electrophysiological parameters of the isolated rabbit skin specimens. The difference in transepithelial electrical potential (PD) and resistance (R) in stationary conditions and during 15 s mechanical-chemical stimulation (PDmin and PDmax), were measured. Measurement of R revealed that tissue samples were live, and their permeability to ions were stable. Control specimens had PD -0.22 mV (median). The PD of specimens treated by cisplatin was -0.55 mV (median), to for cisplatin and bumetanide 0 mV (median). Treatment with cisplatin did not change the continuous transport of Na+ and K+ ions, but did change that of Cl- ions. Stimulation of samples with the transport blockers of Cl-, Na+ and both induced repeatable and measurable reactions in the transport of the appropriate ions. It was shown that absorption of Na+ ions and release of Cl- ions was intensified than in the untreated specimens. It was proven in the study that cisplatin influences the Na+ and Cl- transport in the skin cells. Restoring the balance in ion flow can prevent side effects of use cisplatin-based drugs.Aerobic glycolysis is a key factor to aggravate progression of sepsis. Xijiao Dihuang decoction (XJDHT) has been proven to have favorable therapeutic effects on sepsis. Our previous study has shown that XJDHT is capable of improving survival from sepsis. In this study we investigated the effects of XJDHT on aerobic glycolysis. The rats were randomly divided into five groups, which included control group, model group, TAK-242 group, XJDHT (25 g/kg) group and XJDHT (12.5 g/kg) group. The contents of cytokines increased in the model group compared with control group, while XJDHT reduced expressions of cytokines. Furthermore, the expressions of TLR4, HIF-1α and PKM2 were reduced significantly in the XJDHT group compared with the model group. There were five groups, including control group, LPS group, siTLR4 group, XJDHT (4 mg/mL) group and XJDHT (2 mg/mL) group in vitro experiments. The IL-1β and IL-6 were elevated significantly after LPS stimulation in the model group, while XJDHT reduced the expression of cytokines. Protein expressions of TLR4, HIF-1α and PKM2 were increased significantly by stimulation of LPS, while XJDHT down-regulated the expressions of key molecules in the signaling pathway. To conclude, our study implies that XJDHT is capable of improving the prognosis of sepsis by inhibiting aerobic glycolysis via down-regulation of TLR4/HIF-1α/PKM2 signaling pathway.
Coronavirus disease 2019 (COVID-19)
has emerged as a global pandemic. However, as effective treatments for this disease are still unclear, safe and efficient therapies are urgently needed. Qingfei Paidu decoction (QPD)
is strongly recommended in the Chinese Novel Coronavirus Pneumonia Diagnosis and Treatment Plan (Provisional 6th Edition). However, clinical research data on the effects of QPD on COVID-19 are scarce. Our study aimed to explore the effects of combined treatment with QPD and Western medicine on COVID-19.
In this study, 63 patients with confirmed COVID-19 were analyzed. During the first 14 days of hospitalization, patients with deteriorating symptoms were administered QPD along with Western medicine therapy (the antiviral medicine selected from interferon, lopinavir, or arbidol). The clinical characteristics and blood laboratory indices (blood routine, inflammatory factors, and multi-organ biochemical indices) were examined, and the total lung severity scores were evaluated in each patienns are required to confirm the results presented here.Since the first outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in Wuhan, Hubei, China in December 2019, it is now recognized as a pandemic by the World Health Organization (WHO) as more than 200 countries and territories worldwide are affected with an increasing incidence. The SARS-CoV-2 infection results in a spectrum of non-specific signs and symptoms, ranging from asymptomatic infection, to flu-like illness such as fever, cough, dry cough and fatigue, to pneumonia, acute respiratory distress syndrome, and even multi-organ failures with high morbidity and mortality. SARS-CoV-2 is mainly transmitted through respiratory droplets that infected people exhale during incubation and onset period. By 12 June 2020, over 7.5 million confirmed cases of Coronavirus disease 2019 (COVID-19) with more than 421,000 deaths in the world have been reported to the WHO. No specific medication is approved to treat COVID-19, raising the urgent need for antiviral drug development. By 12 June 2020, there are over 1000 clinical trials registered in clinicaltrials.gov for treatment of COVID-19. This review summarizes the epidemiology, virology, clinical presentation, pathophysiology, diagnosis, and particularly the antiviral drugs currently under clinical trials for treatment of SARS-CoV-2 infection, together with the challenges and perspectives of this disease are also discussed.Diabetes mellitus causes severe impairment in the cutaneous wound healing process, which has led to extensive research striving to establish new treatments. In this work, we describe the effects of chitosan hydrogels functionalized with either unfractionated heparin or bemiparin (a low molecular weight heparin, LMWH) as topical treatments in an experimental diabetic wound healing model. Although wound morphometry showed similar values at the end of the study, microscopic analyses revealed impaired healing in diabetic animals in terms of inflammation and tissue formation. However, both types of loaded hydrogels accelerated inflammation resolution and improved the epithelialization process, while showing a neodermal thickness similar to that of nondiabetic animals. Immunohistochemistry analyses revealed an intermediate response in macrophage evolution between diabetic and nondiabetic controls in the treated groups, as well as enhanced collagenization and myofibroblast progression patterns. However, these changes were not accompanied by differences among groups in collagen I, III and TGF-β1 gene expression. Functionalized hydrogels improved diabetes-associated impaired wound healing, thus promoting the progression of the process and inducing the formation of high-quality cicatricial tissue. Although the beneficial healing effect observed after topical treatment with chitosan hydrogels loaded with bemiparin or unfractionated heparin was similar, the chitosan hydrogel loaded with bemiparin is the preferred choice as it exhibited high-quality tissue in the neoformed dermal tissue.Inflammatory bowel disease (IBD) includes Crohn’s disease and ulcerative colitis and manifests as a complex and dysregulated immune response. To date, there is no cure for IBD; thus, lifelong administration of maintenance drugs is often necessary. Since conventional IBD treatment strategies do not target the sites of inflammation, only limited efficacy is observed with their use. Moreover, the possibility of severe side effects resulting from systemic drug redistribution is high when conventional drug treatments are used. Therefore, a straightforward disease-targeted drug delivery system is desirable. Based on the pathophysiological changes associated with IBD, novel site-specific targeted drug delivery strategies that deliver drugs directly to the inflammation sites can enhance drug accumulation and decrease side effects. This review summarizes novel inflammation targeted delivery systems in the management of IBD. It also discusses the challenges and new perspectives in this field.Despite intense research there is currently no effective vaccine available against the new severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) emerged in the later 2019 and responsible for the COVID-19 pandemic. This infectious and communicable disease has become one of the major public health challenges in the world. The clinical management of COVID-19 has been limited to infection prevention and control measures associated with supportive care such as supplemental oxygen and mechanical ventilation. Meanwhile efforts to find an effective treatment to inhibit virus replication, mitigate the symptoms, increase survival and decrease mortality rate are ongoing. Several classes of drugs, many of them already in use for other diseases, are being evaluated based on the body of clinical knowledge obtained from infected patients regarding to the natural history and evolution of the infection. Herein we will provide an updated overview of the natural history and current knowledge on drugs and therapeutic agents being tested for the prevention and treatment of COVID-19. These include different classes of drugs such as antiviral agents (chloroquine, ivermectin, nitazoxanide, hydroxychloroquine, lopinavir, remdesivir, tocilizumab), supporting agents (Vitamin C, Vitamin D, azithromycin, corticosteroids) and promising investigational vaccines. Considering the controversies and excessive number of compounds being tested and reported in the literature we hope that this review can provide useful and updated consolidated information on potential drugs used to prevent, control and treat COVID-19 patients worldwide.
Lead acetate impairs testicular function by enhancing testicular oxidative stress and apoptosis. Cyperus esculentus possesses antioxidants and has shown great improvement of testicular function. This study investigated the protective effect of hydro-ethanolic extract of Cyperus esculentus on lead acetate-induced testicular dysfunction in Wistar rats.
Twenty-five male Wistar rats (180-195 g) were randomly divided into 5 groups (n = 5) namely Normal control (NC), Lead control (PbC) (20 mg/kg b.w. i.p.), C. esculentus-treated (CE) (500 mg/kg b.w p.o.), Pb + CE(500) (20 mg/kg of lead and 500 mg/kg of extract) and Pb + CE(1000) (20 mg/kg of lead and 1000 mg/kg of extract). Administration lasted for 21 days.
Sperm count, motility, viability, serum testosterone and follicle stimulating hormone, Johnsen’s score, Leydig cell count, Sertoli cell count, testicular testosterone, B-cell lymphoma protein-2 (Bcl-2), steroidogenic acute regulatory protein, cytochrome P450 A1, 3β-hydroxysteroid dehydrogenase (HSD), 17β-HSD, enzymatic antioxidant activities and total antioxidant capacity were significantly (p < 0.05) decreased in PbC compared with NC. These parameters however increased significantly (p < 0.05) in Pb + CE(500) and Pb + CE(1000) compared with PbC. Lead acetate upregulated (p < 0.05) testicular malondialdehyde, nitric oxide, glucose, lactate, lactate dehydrogenase, C-reactive protein, tumor necrosis factor-α, interleukin (IL)-6, IL-1β, Bcl-2 associated X (Bax), Bax/Bcl-2 and cleaved caspase-3 levels. All these parameters were downregulated (p < 0.05) in Pb + CE(500) and Pb + CE(1000) in comparison with PbC.
C. esculentus exhibited a dose-dependent mitigation of lead acetate-induced testicular dysfunction in Wistar rats via its antioxidant, anti-inflammatory and anti-apoptotic effects.
C. esculentus exhibited a dose-dependent mitigation of lead acetate-induced testicular dysfunction in Wistar rats via its antioxidant, anti-inflammatory and anti-apoptotic effects.Liver injury is a common complication of severe heat stroke (HS). Extracellular vesicles (EVs) are part of a novel pathway mediating intercellular communication. Whether EVs are involved in the pathogenesis underlying HS-induced liver injury remains unknown. Here, we explored the role of hepatocyte EVs in HS-induced liver injury and their protein regulation patterns after HS induction. Isobaric tags for relative and absolute quantification technology (iTRAQ) and liquid chromatography-tandem mass spectrometry analysis identified changes in the proteomic profiles of hepatocyte-derived heat-stroked EVs, and we identified 53 up-regulated proteins. Bioinformatics analysis verified that the regulation of programmed cell death was the most significant altered pathway. To clarify the effect of HS hepatocyte-derived EVs in inducing hepatocyte-programmed death and injury, they were added to recipient hepatocytes and injected into mice. This treatment significantly induced the synthesis of apoptosis (caspase-3/8) and necroptosis-associated proteins [receptor-interacting protein 1 (RIP1), RIP3, and mixed lineage kinase domain-like protein]; moreover, it increased the numbers of apoptotic and necroptotic cells in hepatocytes and liver tissues and increased the levels of biochemical liver injury markers (alanine aminotransferase, aspartate aminotransferase, and lactate dehydrogenase). Our study is the first comprehensive analysis of the hepatocyte-derived heat-stroked EV proteome confirming the induction of liver injury by Evs. We provide a novel explanation for the pathological mechanism underlying HS-induced liver injury.Atopic dermatitis (AD) is a chronic inflammatory skin disease that is associated with intestinal microflora. Since specific probiotics may have better efficacy for AD, we determined the efficacy of Pediococcus acidilactici SRCM102024 (PA) for treating AD in HaCaT cells and NC/Nga mice and explored the mechanism of action. AD-like pathology was induced in HaCaT cells and the dorsal skin of Nc/Nga mice by local exposure to 2,4-dinitrochlorobenzene (DNCB). In AD-lesion induced mice, PA in low-, medium- and high-dosages (5 × 10E6, 5 × 10E7 and 5 × 10E8 CFU/kg bw, respectively) and dexamethasone (3 mg/kg bw, positive-control) were orally administered for 5 weeks. The clinical AD severity, serum immunoglobulin E (IgE) and TNF-α, gene expressions of interleukin (IL)-4, IL-13, and TNF-α and gut microflora were measured. PA treatment (100-300 CFU/mL) dose-dependently increased cell survival in DNCB-induced HACAT cells. PA reduced the relative mRNA expression of PAR-2, TNF-α, IL-4 and IL-13 in the cells. In dorsal skine may be a safe and effective alternative therapy for AD.Sleep disorders are a widespread condition in patients with Parkinson’s disease (PD), which has been linked to a deregulation of the circadian cycle and therefore of the clock genes. The aim of this study was to evaluate the effect of melatonin (MEL) on the PER1 and BMAL1 clock genes in patients with PD. A double-blind, cross-over, placebo-controlled randomized clinical trial pilot study was conducted in 26 patients with stage 1-3 PD according to the Hoehn & Yahr scale, who received either 25 mg of MEL or a placebo at noon and 30 min before bedtime for three months. The relative expression of the PER1 and BMAL1 genes was measured, as well as the presence of daytime, nocturnal, and global sleepiness, and the progression of PD. The levels of the PER1 and BMAL1 genes at baseline were 0.9 (0.1-3) vs. 0.56 (0.1-2.5), respectively; while after the intervention with MEL or placebo the BMAL1 levels increased to 2.5 (0-3.70) vs. 2.2 (0.10-3.30), respectively (d = 0.387). Fifty percent (50 %) of patients had daytime sleepiness and sixty-five percent (65 %) had abnormal nighttime sleepiness, yet neither group showed changes after the intervention. Patients with PD exhibited an alteration in the levels of the clock genes MEL increased the levels of BMAL1, but the PER1 levels remained unchanged.Cancer is a disease characterized by overproliferation, including that due to transformation, apoptosis disorders, proliferation, invasion, angiogenesis and metastasis, and is one of the deadliest diseases. Currently, conservative chemotherapy is used for cancer treatment due to a lack of effective drugs. The PI3K/Akt signaling pathway plays a very essential role in the pathogenesis of many cancers, and abnormal activation of this pathway leads to abnormal expression of a series of downstream proteins, which ultimately results in the excessive proliferation of cancer cells. Therefore, the PI3K/Akt signaling pathway is a critical target in cancer treatment. Marine drugs have attracted much attention in recent years, and studies have found that many extracts from oceanic animals, plants and microorganisms or their metabolites exert antitumor effects, including antiproliferative effects or the induction of cell cycle arrest, apoptosis or autophagy. However, most anticancer targets and the mechanisms of marine compounds remain unclear. The great potential of the development of marine drugs provides a new direction for cancer treatment. This review focuses on marine compounds that target the PI3K/Akt signaling pathway for the prevention and treatment of cancer and provides comprehensive information for those interested in research on marine drugs.Diabetic renal injury advances through different stages of structural and functional changes in the glomerulus, therefore treatment during the pre-diabetic state could be used as therapeutic target in the management and prevention of diabetic nephropathy (DN). Once diagnosed, dietary interventions and pharmacological therapy have been recommended to manage DN and pre-diabetic related complications. However, poor patient compliance still results, therefore newer alternative drugs are required. High fat high carbohydrates (HFHC) diet was used to induce pre-diabetes for 20 weeks. After the induction, pre-diabetic rats were randomly allocated to respective treatment groups. Subcutaneous ruthenium(II) Schiff base complex injection (15 mg/kg) was administered to pre-diabetic rats in both the presence and absence of dietary intervention once a day every third day for 12 weeks. The administration of ruthenium(II) complex resulted in reduced blood glucose, aldosterone, fluid intake and urinary output which correlated with a restoration in plasma and urinary electrolytes along with plasma antioxidants concentration. Furthermore, there was a decrease in kidney injury molecule-1 (KIM-1) concentration, albumin excretion rate (AER) albumin creatinine ratio (ACR) and mRNA expression of podocin in urine in ruthenium-treated pre-diabetic rats. Ruthenium(II) Schiff base complex ameliorated renal function while preventing the progression of DN in prediabetic-treated rats.The Qiangji Jianli Decoction (QJJLD) is an effective Chinese medicine formula for treating Myasthenia gravis (MG) in the clinic. QJJLD has been proven to regulate mitochondrial fusion and fission of skeletal muscle in myasthenia gravis. In this study, we investigated whether QJJLD plays a therapeutic role in regulating mitochondrial biogenesis in MG and explored the underlying mechanism. Rats were experimentally induced to establish autoimmune myasthenia gravis (EAMG) by subcutaneous immunization with R97-116 peptides. The treatment groups were administered three different dosages of QJJLD respectively. After the intervention of QJJLD, the pathological changes of gastrocnemius muscle in MG rats were significantly improved; SOD, GSH-Px, Na+-K+ ATPase and Ca2+-Mg2+ ATPase activities were increased; and MDA content was decreased in the gastrocnemius muscle. Moreover, AMPK, p38MAPK, PGC-1α, NRF-1, Tfam and COX IV mRNA and protein expression levels were also reversed by QJJLD. These results implied that QJJLD may provide a potential therapeutic strategy through promoting mitochondrial biogenesis to alleviate MG via activating the AMPK/PGC-1α signaling pathway.Radix astragali, a medicinal material for tonifying Chinese Qi, has widely been used for the treatment of Kidney disease in China and East Asia, especially in reducing the apoptosis of glomerular podocytes. Paecilomyces Cicadidae is a medicinal and edible fungus. In recent years, the application of traditional Chinese medicine (TCM) in solid-state fermentation of edible and medicinal fungi has become a hot issue. Fermentation is a special method to change the properties of TCM. Therefore, the potential roles and molecular mechanisms on podocytes of solid-state fermentation products of Radix astragali and Paecilomyces cicadidae (RPF) in diabetic nephropathy (DN) were studied. In vivo, the effect of RPF and Radix astragali on DN in mice was evaluated by detecting the biochemical indexes of blood and urine, renal function and podocyte integrity. In vitro, the expression of podocyte marker protein, autophagy marker protein and PI3K/AKT/mTOR signaling pathway protein were detected by Western blotting using a high glucose-induced podocyte injury model. The results showed that RPF had a significant alleviative effect on DN mice. RPF can significantly reduce urine protein, serum creatinine, and blood nitrogen urea in DN mice. Morphological analysis showed that RPF could improve kidney structure of DN and reduce the apoptosis of podocytes, and the effect was better than Radix astragali. In vitro results indicated that RPF could enhance autophagy and protect podocytes by inhibiting the PI3K/AKT/mTOR signaling pathway. In summary, RPF has better effect on delaying the development of DN than Radix astragali. RPF enhances autophagy in podocytes and delays DN probably by inhibiting the PI3K/AKT/mTOR signaling pathway.
The pathogenesis and mechanism of colitis may be related to intestinal flora, genetic susceptibility, environmental and immune factors. Among these various factors, the importance of environmental factors in the pathogenesis of colitis has been increasingly recognized. The purpose of this study was to investigate the effects of hypoxia on intestinal mucosal immunity.
Experimental colitis was induced by oral gavage of Citrobacter rodentium (C. rodentium) in mice, then divided into normoxia group and hypoxia group. Mice were sacrificed after 2 weeks. Physiological and blood biochemical indicators were monitored to verify the hypoxia model. The body weight, fecal bacterial output, colon length and colon histopathology were observed to evaluate severity of colitis. The concentration of cytokines in colonic tissues were detected by ELISA. The percentage of CD4
IFN-γ
(Th1) and CD4
IL-17
(Th17) cells in mesenteric lymph nodes (MLN) were detected by flow cytometry. The levels of mucosal antimicrobial pepticolitis in mice.
Hypoxic exposure significantly exacerbates the symptoms and the pathological damage of mice with colitis and influences the immune function by down-regulating Th1 and Th17 responses in C. rodentium-induced colitis in mice.
The density and the activity of mast cells are associated with endometriosis. However, the role of mast cells on the pathogenesis of endometriosis remains unclear. Our study aims to investigate whether endometrial cells interact with mast cells and the involvement of their crosstalk in the development of endometriosis.
The transwell assay was applied to investigate the effect of mast cells on the migratory ability of human primary endometrial cells. Mast cells were cocultured with endometrial epithelial and stromal cells respectively and total RNAs were isolated and subjected to mRNA sequencing. Next, the transwell assay, CCK-8, and tube formation were applied to study the role of CCL8 on the endometrial and endothelial cells in vitro. The mouse model was also established to confirm the role of CCL8 in the development and angiogenesis of endometriosis.
CCL8 was up-regulated in mast cells when cocultured with endometrial cells. CCL8 was highly expressed in the ectopic endometrium and the serum of patients with endometriosis. CCL8 promoted the migratory ability of endometrial epithelial and stromal cells and increased the proliferation, migration, and tube formation of endothelial cells. CCR1, the receptor of CCL8, was over-expressed in the ectopic endometrium and colocalized with blood vessels in ovarian endometriomas. The inhibition of CCR1 suppressed the development and angiogenesis of endometriosis in vivo.
The crosstalk between endometrial cells and mast cells in the development of endometriosis via CCL8/CCR1 was demonstrated, thereby providing a new treatment strategy for endometriosis.
The crosstalk between endometrial cells and mast cells in the development of endometriosis via CCL8/CCR1 was demonstrated, thereby providing a new treatment strategy for endometriosis.Damaged lesion remedial is a devastating impediment of diabetes that escorts to noteworthy disease state, predominantly bottom end diseases. Herbal outputs have exposed to be effectual in managing skin abrasions. Kirenol is recognized to encourage angiogenesis, fibroblast propagation, and exposure of cytokines and development factors concerned in wound remedial. The current study is executed to appraise the wound curing action of kirenol in streptozotocin-persusded diabetic rats by macroscopic parameters, histopathological, enzymatic, and biomolecular methods. Proportion of injure disclosure and reduction was augmented in the kirenol managed group. Histopathological examination exposed declined inflammatory cell applicability and amplified production of fibroblasts, new blood vessels, and displacement of collagen subsequent to kirenol treatment. RT-PCR study displayed diminished concentration of NF-κB, COX-2, iNOS, MMP-2 and MMP-9 levels in reply to kirenol. In accordance with all above findings our present study indicates that kirenol upholds wound medicinal prospective in hyperglycemic circumstances and might be constructive as a dealing and management for unceasing lesions in diabetic patients.In worldwide, osteoporosis has become one of the severe public health distress and over 200 million people get affected by tenderness and fissure during their life period. Vicenin-2 is a naturally occurring flavonoid glycoside present in Moringa oleifera, Peperomia blanda and Ocimum sanctum Linn with numerous biological activities. The present study aims to assess the effect of Vicenin-2 on ovariectomy-induced postmenopausal osteoporosis in female rats. Surgical removal of ovaries was achieved to institute the ovariectomy animal model. The ovariectomized (OVX) animals were alienated into four groups Control, OVX alone (model), OVX with Vicenin-2 (5 mg/kg b.w), and OVX with Vicenin-2 (10 mg/kg b.w). Also, their consistent conduct remained managed intragastrically for about 12 weeks. OVX rats treated with Vicenin-2 effectually improved body mass, uterus index, lipid profiles, inflammatory markers, bone turnover markers and amplified the presence of calcium in the OVX rat serum. Vicenin-2 was found to suppress the actions of ACP, E2, and BGP in OVX rats. Besides, Vicenin-2 showed some adverse effects over histomorphometric percentage and histological studies, in which tabular thickness and area were restored in the control and Vicenin-2 managed OVX rats. PCR results of Alp, Runx 2, Osx showed diminished expressions in OVX rats whereas treatment with Vicenin-2 displays up-regulated expression of these genes. Through our study, we established that Vicenin-2 did not wield a detrimental upshot on the skeletal organization of OVX rats. Besides, we put forward that Vicenin-2 could be an excellent candidate to treat and manage bone related disease or disorders.Huoxuezhitong capsule (HXZT, activating blood circulation and relieving pain capsule), has been applied for osteoarthritis since 1974. It consists of Angelica sinensis (Oliv.) Diels, Panax notoginseng (Burkill) F. H. Chen ex C. H., Boswellia sacra, Borneol, Eupolyphaga sinensis Walker, Pyritum. However, the direct effects of HXZT on osteoarthritis and the underlying mechanisms were poorly understood. In this study, we aimed to explore the analgesia effect of HXZT on MIA-induced osteoarthritis rat and the underlying mechanisms. The analgesia and anti-inflammatory effect of HXZT on osteoarthritis in vivo were tested by the arthritis model rats induced by monosodium iodoacetate (MIA).. Mechanistic studies confirmed that HXZT could inhibit the activation of NF-κB and down-regulate the mRNA expression of related inflammatory factors in LPS-induced RAW264.7 and ATDC5 cells. Furtherly, in LPS-induced RAW264.7 cells, HXZT could suppress NF-κB via inhibiting PI3K/Akt pathway. Taken together, HXZT capsule could ameliorate MIA-induced osteoarthritis of rats through suppressing PI3K/ Akt/ NF-κB pathway.Ischemic stroke is a syndrome of severe neurological responses that cause neuronal death, damage to the neurovascular unit and inflammation. Notoginsenoside R1 (NG-R1) is a neuroprotective drug that is commonly used to treat neurodegenerative and cerebrovascular diseases. However, its potential mechanisms on the regulation of small molecule metabolism in ischemic stroke are largely unknown. The aim of this study was to explore the potential mechanisms of NG-R1 on the regulation of small molecule metabolism after ischemic stroke. Here, we found that NG-R1 reduced infarct size and improved neurological deficits by ameliorating neuronal damage and inhibiting glial activation in MCAO/R rats. Furthermore, using matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI), we clarified that NG-R1 regulated ATP metabolism, the tricarboxylic acid (TCA) cycle, the malate-aspartate shuttle, antioxidant activity, and the homeostasis of iron and phospholipids in the striatum and hippocampus of middle cerebral artery occlusion/reperfusion (MCAO/R) rats. In general, NG-R1 is a promising compound for brain protection from ischemic/reperfusion injury, possibly through the regulation of brain small molecule metabolism.The infections caused by Herpes simplex viruses (HSV-1 and -2) are seriously endangering the health of all human beings. Once infected with these two viruses, it will cause life-long latency in the host, and the continuous recurrence of the infection will seriously affect the quality of life. Moreover, infections with HSV-1 and HSV-2 have been reported to make the body susceptible to other diseases, such as Alzheimer’s disease and HIV. Thus, more attention should be paid to the development of novel anti-HSV drugs. Polysaccharides obtained from medicinal plants and microorganism (both land and sea) are reported to be promising anti-herpes substances. However, their antiviral mechanisms are complex and diverse, which includes direct inhibition of virus life cycle (Adsorption, penetration, genetic material and protein synthesis) and indirectly through improving the body’s immunity. And each step of the research processes from extraction to structural analysis contributes to the result in terms of antiviral activity. Therefore, The complex mechanisms involved in the treatment of Herpes simplex infections makes development of new antiviral compounds is difficult. In this paper, the mechanisms of polysaccharides in the treatment of Herpes simplex infections, the research processes of polysaccharides and their potential clinical applications were reviewed.Psoralea corylifolia is a medicinal herb that provides advantageous pharmacological effects against vitiligo and skin rash. Former studies have shown that bakuchicin, a furanocoumarin compound from the fruits of P. corylifolia, has therapeutic effects against inflammation, and infection. This study aimed to define the pharmacological effects of bakuchicin on inflammatory responses and lichenification, the major symptoms of atopic dermatitis (AD). To induce AD-like skin inflammation, we exposed the ears of female BALB/c mice to 2, 4-dinitrochlorobenzene (DNCB) and Dermatophagoides farinae (house dust mite) extract (DFE) for 4 weeks. Intragastric administration of bakuchicin attenuated the symptoms of AD-like skin inflammation, as evident by reductions in ear thickness, erythema, and keratosis. Bakuchicin also reversed increases in auricular epidermal and dermal layer thicknesses, and attenuated eosinophil and mast cell infiltration in AD-induced mice. It also suppressed Th2 gene expression as well as that of pro-inflammatory cytokines and chemokines, such as interleukin (IL)-4, IL-13, IL-31, IL-1β, IL-6, CXCL-1, and CCL-17 in the ear tissue. The levels of total and DFE-specific immunoglobulin (Ig)E, and IgG2a in the mice sera were reduced by the bakuchicin. To investigate the effect of bakuchicin on keratinocytes, experiments were performed using HaCaT cells, the representative cell type used in skin disease studies. Tumor necrosis factor-α and interferon-γ were used to activate keratinocytes. Bakuchicin suppressed Th2 gene expression and that of pro-inflammatory cytokines and chemokines; it also suppressed STAT-1 phosphorylation and the nuclear translocation of NF-κB in activated keratinocytes. These results suggest that bakuchicin attenuated AD symptoms, thus suggesting it as a potential therapeutic agent for the treatment of AD.Peramivir, a neuraminidase inhibitor, was approved globally and is indicated for the treatment of uncomplicated influenza in adults and children. However, the only approved intravenous formulation of peramivir limits its clinical application due to the need for the specialized dosing techniques and increases the risk of contracting influenza virus infection among healthcare professionals when dosing within a short distance to the patient. The purpose of this study was to investigate the pharmacokinetic profile of peramivir in plasma and the lung of rats and to compare the profiles following administration through trans-nasal aerosol inhalation (0.0888, 0.1776, and 0.3552 mg/kg) and intravenous injection (30 mg/kg). The plasma concentration reached the Cmax within 1.0 h (upon inhalation) and decreased at a t1/2 of 6.71 and 10.9 h after inhalation and injection, respectively. The absolute bioavailability of peramivir after inhalation was 78.2 %. Overall, the pharmacokinetic exposure of peramivir in the lungs was higher than that in the plasma after aerosol inhalation. After inhalation, the Cmax of peramivir in the lung was achieved within 1.0 h, and the elimination of the drug was slower than in the case of intravenous injection with t1/2 values 1.81 h for injection and 5.72, 53.5, and 32.1 h for low, middle, and high doses administered through inhalation. The Cmax and AUC0-t values for peramivir in the lungs increased linearly with the increased inhalation dose. The results elucidate the pharmacokinetic process of peramivir after trans-nasal aerosol inhalation to rats and provide useful information for further rational application of this drug formulation.Diabetic vascular complications are associated with endothelial dysfunction. Various plant-derived polyphenols benefit cardiovascular function by protecting endothelial nitric oxide (NO) production through as yet unclear mechanisms. This study compared the effects of two structurally similar polyphenols, Morin (MO) and Quercetin (QU), on endothelial function in isolated aorta from control and streptozotocin (STZ)-induced diabetic mice. Vascular function under treatment with MO, QU, and various signaling pathway modulators was measured by isometric tension in an organ bath system, NO production by chemical assay and HPLC, and changes in protein signaling factor expression or activity by western blotting (WB). Both polyphenols acted as potent vasodilators and this effect was associated with increased phosphorylation of Akt and endothelial NO synthase (eNOS). An Akt inhibitor blocked MO- and QU-induced vasorelaxation as well as Akt phosphorylation. However, inhibitors of phosphoinositide 3-kinase (PI3K) and AMP-activated protein kinase (AMPK) suppressed only QU-induced vasorelaxation, NO production, and AMPK phosphorylation. These results suggested that plant polyphenols MO and QU both promote eNOS-mediated NO production and vasodilation in diabetic aorta, MO via Akt pathway activation and QU via PI3K/Akt and AMPK pathway activation. Elucidation of these pathways may define effective therapeutic targets for diabetic vascular dysfunction.Triple-negative breast cancer (TNBC) is a highly lethal subtype of breast cancer associated with early relapse and metastasis. Epithelial to mesenchymal transition (EMT) plays pivotal roles in the progression of TNBC, including inducing cancer stem cell (CSC) properties, chemoresistance, tumor metastasis, and recurrence. Abnormally activated YAP/TAZ induces EMT in TNBC, making it a promising target for drug development. Our goal is to identify potential YAP/TAZ inhibitors from naturally derivative molecules and further study its effects on inhibiting EMT and metastasis of TNBC. In the current study, we demonstrate that luteolin significantly inhibits YAP/TAZ activity by promoting YAP/TAZ degradation in TNBC cells. Luteolin treatment leads to a decrease of mesenchymal markers and an increase of epithelial markers in both TNBC cells and TAZ-induced mesenchymal cells. Consistently, luteolin treatment inhibits cell migration in TNBC cells. Additionally, luteolin inhibits tumor growth in mice xenografted with TNBC cells. Collectively, our results support luteolin as a novel YAP/TAZ inhibitor for development as a new agent for the treatment of TNBC.Non-small cell lung cancer (NSCLC) is the primary subtype of lung cancer with high mortality. Circular RNAs (circRNAs) play a crucial role in tumor development and progression. This study aimed to explore the function of circ_0067934 in NSCLC progression and its molecular basis. The levels of circ_0067934, miR-1182 and kruppel like factor 8 (KLF8) were measured by quantitative real-time polymerase chain reaction or western blot assay. Cell viability was detected by Cell Counting Kit-8 (CCK-8) assay. Cell migration and invasion were assessed by transwell assay. Cell apoptosis was monitored by flow cytometry. The protein levels of epithelial-to-mesenchymal transition (EMT)-related markers and Wnt/β-catenin pathway-related proteins were examined by western blot. Dual-luciferase reporter assay, RNA Immunoprecipitation (RIP) assay or RNA pull-down assay was performed to verify the interaction among circ_0067934, miR-1182 and KLF8. Xenograft assay was used to detect tumor growth in vivo. We found that circ_0067934 and KLF8 were up-regulated, while miR-1182 was down-regulated in NSCLC tissues and cells. Circ_0067934 knockdown blocked proliferation, migration, invasion and EMT and induced apoptosis in NSCLC cells. Circ_0067934 regulated NSCLC progression by sponging miR-1182. MiR-1182 targeted KLF8 to hinder NSCLC development. In addition, depletion of circ_0067934 restrained tumor growth in vivo. In conclusion, Circ_0067934 acted as a competing endogenous RNA to facilitate NSCLC progression by regulating the miR-1182/KLF8 axis and activating Wnt/β-catenin pathway.Radiation is a current standard treatment of glioma. The fractionated radiotherapy with low dose of radiation over weeks has been employed in glioma patients, while radiotherapy can only offer palliation due to the radioresistance. We cumulatively radiated a glioblastoma cell line, U87MG, and screened radioresistant glioma cells. A transcriptome sequencing was performed to analyze the transcription differences between the raidoresistant and control cells, which showed the mitochondria NADH-ubiquinone oxidoreductase (Complex I) subunits were up-regulated in the radioresistant cells. The copy numbers of mitochondria were increased in the radioresistant glioma cells. After using mitochondria Complex I inhibitors, rotenone and metformin, to treat glioma cells, we found the resistant glioma cells re-sensitized to radiation. These results demonstrate that Complex I is associated with the fractioned radiation-induced radioresistance of glioma and would be a potent target for clinical radiotherapy of glioma.Studying prostate cancer is important due to its high annual incidences and mortality rates in the world. Although prostate cancer mortality rates are reduced using new therapy, complicated routes and side effects of these current drugs require a daily available treatment for prevention. Lycopene is a natural, prominent, and effective product which has a high value in diet. The anti-cancer effect, non-toxicity, safety and preventive or therapeutic roles of lycopene have been investigated in several studies. In the current review, we have collected information about the anti-cancer, anti-progressive and apoptotic effects of lycopene on prostate cancer. This article is a summary of the most important original and review articles on lycopene and its anticancer effects that are systematically categorized and presents information about the molecular structure, different sources, biological functions, and its in-vivo and in-vitro effects of lycopene on variety of cancerous and normal cells. The clinical studies provide a clear image for continuous use of this adjunctive dietary for different type of cancers, especially prostate cancer in men. In addition, this article discusses the various molecular pathways activated by lycopene that eventually prevent or suppress cancer. Lycopene has been found to effectively suppress the progression and proliferation, arrest in-cell cycle, and induce apoptosis of prostate cancer cells in both in-vivo and in-vitro conditions. Additionally, lycopene showed that it could modulate the signaling pathways and their protein for the treatment or prevention of prostate cancer.Hepatic ischemia-reperfusion (IR) injury is characterized by severe inflammation and cell death. However, very few effective therapies are presently available for hepatic IR injury treatment. Here, we reported a protective function and the underlying mechanism of myotubularin-related protein 14 (MTMR14) during hepatic IR injury. Hepatocyte-specific MTMR14 knockout (HKO) and transgenic (TG) mice were subjected to hepatic IR operation to explore MTMR14 function in vivo. Primary hepatocytes isolated from MTMR14-HKO and MTMR14-TG mice were subjected to hypoxia/reoxygenation (HR) insult in vitro. We found that MTMR14 expression in liver tissues from individuals with hepatic IR was markedly decreased, and similar results were detected in mice with hepatic IR surgery. MTMR14-TG mice following hepatic IR operation had obviously ameliorated liver pathological changes, along with improved hepatic dysfunction, which was proved by the decreased serum alanine amino transferase (ALT) and aspartate amino transferase (AST) levels. MTMR14-HKO and MTMR14-TG animal models indicated that MTMR14 alleviated cell death and inflammatory response. In addition, MTMR14 inhibited nuclear transcription factor κB (NF-κB) signaling. Of note, promoting MTMR14 expression improved phosphatidylinositol 3-kinase/protein kinase-B (PI3K/AKT) pathway through a physical interaction with AKT, subsequently reducing cell death and inflammation. Therefore, MTMR14 is a protective factor during hepatic IR injury, and the MTMR14/AKT signaling is involved the pathogenesis hepatic IR injury. Improvement of this axis might be a novel therapeutic strategy for the prevention of this pathological process.HDAC6 is a crucial epigenetic modifier that plays a vital role in tumor progression and carcinogenesis due to its multiple biological functions. It is a unique member of class-II HDAC enzymes. It possesses two catalytic domains, which function independently of the overall enzyme activity. Up to date, there are only a few selective HDAC6 inhibitors with anti-cancer activity. In this study, 175,204 ligands obtained from the ZINC15 and OTAVAchemical databases were used for virtual drug screening against HDAC6. Molecular docking studies were performed for 100 selected compounds. Furthermore, the top 10 compounds obtained from docking were tested for their efficacy to inhibit the function of HDAC6. Five compounds (N-(9-oxo-9H-fluoren-3-yl)benzamide, 2-hydroxy-5-[(5-oxo-6-phenyl-4,5-dihydro-1,2,4-triazin-3-yl)amino]benzoic acid, 5-(4-bromonaphthalene-1-sulfonamido)-2-hydroxybenzoic acid, 2-(naphthalen-2-yl)-N-(1H-1,2,3,4-tetrazol-5-yl)cyclopropane-1-carboxamide, and 4-oxa-5,6 diazapentacyclo[10.7.1.0³,⁷.0⁸,²⁰.0¹⁴,¹⁹]icosa-1,3(7),5,8(20),9,11,14,16,18-nonaen-13-one) inhibited enzymatic activity by more than 50 % compared to DMSO as the control.