[Mechanism of Huangqin Qingre Chubi Capsules in improving rheumatoid arthritis based on METTL3-SFRP4/Wnt/β-catenin pathway].

The effect and mechanism of Huangqin Qingre Chubi Capsules(HQC) on rheumatoid arthritis(RA) were studied.Seventy male SPF rats were randomly divided into normal group, model group, low-(0. 18 g·kg~(-1)), middle-(0.

[Experimental Study on Paeoniflorin Inhibiting mTOR Signaling Pathway in Adjuvant Arthritis Rats].

Objective: To study the effect of paeoniflorin (PF) on mTOR signal in synovial fibroblast-like synoviocytes (FLS) in rats with adjuvant arthritis.

Methods: AA model rats were prepared by complete Freun's adjuvant injection in foot-plantar, the PF was injected to rats in AA + PF 100 μg / mL group, AA + PF 200 μg / mL group and AA + PF 400 μg / mL group by the tail vein injection at the dose of 0.1 mL/200 g body mass, and the effects of three doses of PF on arthritis scores in AA rats were studied.

[Effect of Flavonoids from Wang Zaizi on Adjuvant Arthritis in Rats and Its Mechanism].

Objective: The therapeutic effect and mechanism of total flavonoids in Isodon amethystoides (Ben-th) Cy Wu et Hsuan (TFIA) on adjuvant arthritis (AA) were investigated.

Methods: AA model rats were set and complete Freund's adjuvant injection,randomly divided into 4 groups: AA group,AA+TFIA 50 mg/kg group,AA+TFIA 100 mg/kg group,AA+TFIA 150 mg/kg group,and each group has 10 rats. Blank control group was set without modeling (=10).

In Silico System Pharmacology for the Potential Bioactive Ingredients Contained in Xingnaojing Injection () and Its Material Basis for Sepsis Treatment.

Objective: To elucidate the action mechanism of Xingnaojing Injection (, XNJI) for sepsis, and to target screen the potential bioactive ingredients.

Methods: An integrated protocol that combines in silico target screen (molecular docking) and database mapping was employed to find the potential inhibitors from XNJI for the sepsis-related targets and to establish the compound-target (C-T) interaction network. The XNJI's bioactive components database was investigated and the sepsis-associated targets were comprehensively constructed; the 3D structure of adenosine receptor A2a and 5-lipoxygenase proteins were established and evaluated with homology modeling method; system network pharmacology for sepsis treatment was studied between the bioactive ingredients and the sepsis targets using computational biology methods to distinguish inhibitors from non inhibitors for the selected sepsis-related targets and C-T network construction.

[Effect of pulchinenoside on FZD8 expression of adjuvant arthritis rats].

To study the effect of pulchinenoside (PULC) on the Frizzled (FZD) expression of adjuvant arthritis ( AA) rats. AA rats were prepared through the toe injection with complete Freund's adjuvant to culture fibroblast-like synoviocytes (FLS). The effect of the oral administration with PULC on the FZD8 expression was detected by the real time qPCR.

Critical roles of microRNAs in the pathogenesis of systemic sclerosis: New advances, challenges and potential directions.

Systemic sclerosis (SSc) is an autoimmune disease characterized by immune disorders, vascular obliteration, excessive extracellular matrix deposition, skin fibrosis, and further pathological change of internal organs. To date, the exact etiology of this complicated disease remains unknown. Over the past few years, the roles of epigenetic modifications caused by environmental factors have been intensively studied in relation to the disease pathogenesis, and important advances have been made.

[Effect of Phellinus Polysaccharide on Canonical Wnt Signaling in Synovium in Rats with Rheumatoid Arthritis].

Objective: To investigate the role of Phellinus Polysaccharide (FPS) in activating canonical Wnt signaling in rats with rheumatoid arthritis (RA).

Methods: Male SD rats were randomly divided into three groups (normal group, RA model group and PPS treated RA group), each with 10 rats. The RA model rats were prepared through intradermal injection of 0.

DNMT1 activates the canonical Wnt signaling in rheumatoid arthritis model rats via a crucial functional crosstalk between miR-152 and the DNMT1, MeCP2.

In previous study, we identified that microRNA (miR)-152 expression was down-regulated in RA model rats, and overexpression of miR-152 inhibited the canonical Wnt signaling through the DNA methyltransferase (DNMT1) inhibition. However, the exact molecular mechanisms of DNMT1 were unclear. In this work, we investigate whether DNMT1 affects the pathogenesis of RA model rats and targets the miR-152 promoter.

MicroRNA-663 activates the canonical Wnt signaling through the adenomatous polyposis coli suppression.

Rheumatoid arthritis (RA) is a symmetrical polyarticular autoimmune disease of unknown etiology. In this present study, we observed that the adenomatous polyposis coli (APC) expression is down-regulated and the expression of microRNA (miR)-663 increased significantly in synovium from RA patients compared with control. Target gene prediction for miR-663 revealed that the mRNA of APC gene, which is a member of the canonical Wnt signaling pathway, has a miR-663 binding site in its 3'-untranslated region (3'UTR).

[Flavonoids of Echinps latifolius suppress Wnt signaling in adjuvant arthritis rats].

The role of flavonoids of Echinps latifolius (FELT) in Wnt signaling was investigated in adjuvant arthritis (AA) rats. The therapeutic effects of FELT on AA rats were detected by rat arthritis score and MTT. The effect of FELT gavage treatment on the Wnt signaling key gene β-catenin, C-myc and cyclin D1 in synovium from AA rats was detected by Real-time qPCR, and the effects of FELT gavage treatment on the upstream negative regulation gene SFRP 1,2,4,5 in synovium from AA rats were detected by Real-time qPCR.

[Treatment of rheumatoid arthritis with flavonoids of Echinps latifolius Tausch in rat model].

Objective: To investigate the effect of Flavonoids extracted from Echinps latifolius Tausch(FELT) on rheumatoid arthritis (RA) in rat model.

Method: Fifty SD rats were randomly divided into model group, control group, and low, medium, and high-dose FELT groups (n=10 in each group). Complete Freund's adjuvant (0.

In silico target fishing for the potential bioactive components contained in Huanglian Jiedu Tang (HLJDD) and elucidating molecular mechanisms for the treatment of sepsis.

The present study was designed to target fish for potential bioactive components contained in a Huang Lian Jie Du decoction (HLJDD) and identify the underlying mechanisms of action for the treatment of sepsis at the molecular level. he bioactive components database of HLJDD was constructed and the sepsis-associated targets were comprehensively investigated. The 3D structures of the PAFR and TXA2R proteins were established using the homology modelling (HM) method, and the molecular effects for sepsis treatment were analysed by comparing the bioactive components database and the sepsis targets using computational biology methods.

miR-375 regulates the canonical Wnt pathway through FZD8 silencing in arthritis synovial fibroblasts.

Whether the rheumatoid arthritis (RA) pathogenesis is regulated by microRNA (miRNA) is not entirely clear. In this study, we found that miR-375 was down-regulated significantly in fibroblast-like synoviocytes (FLS) in adjuvant-induced arthritis (AIA) rat model compared with control. Because the web-based software TargetScan and PicTar predict Frizzled 8 (FZD8) as the target of miR-375, we investigated whether up-regulated miR-375 plays a role in the activation of the canonical Wnt signaling by targeting the FZD8.

MicroRNA-152 modulates the canonical Wnt pathway activation by targeting DNA methyltransferase 1 in arthritic rat model.

Rheumatoid arthritis (RA) is an autoimmune and progressive systemic disease of unknown etiology. Research shows that fibroblast-like synoviocytes (FLS) participate in the cartilage erosion, synovial hyperplasia, inflammatory cytokine secretion and suggests that fibroblast-like synoviocytes (FLS) display a crucial role in RA pathogenesis. Recent studies have suggested the role of the Wnt signaling pathway in the pathogenesis of RA.

[Effect of pulchinenoside in regulating FLS SFRP2 expression of RA model rats].

Objective: To study the effect of pulchinenoside (PULC) in modulating SFRP2 expression in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis (RA) model rats.

Method: The effect of PULC in treating RA rats was evaluated by rat arthritis score and paw swelling score. The inhibitory effect of PULC on FLS proliferation was detected by MTT reagent.

Wnt signaling in liver fibrosis: progress, challenges and potential directions.

Liver fibrosis is a common wound-healing response to chronic liver injuries, including alcoholic or drug toxicity, persistent viral infection, and genetic factors. Myofibroblastic transdifferentiation (MTD) is the pivotal event during liver fibrogenesis, and research in the past few years has identified key mediators and molecular mechanisms responsible for MTD of hepatic stellate cells (HSCs). HSCs are undifferentiated cells which play an important role in liver regeneration.

The emerging role of microRNAs in the pathogenesis of systemic lupus erythematosus.

Systemic lupus erythematosus (SLE) is a chronic, multi-system autoimmune disease characterized by disorder of the generation of auto-antibodies to components of cell nucleus, and the exact etiology of this disease is unknown. MicroRNAs (miRNAs) are endogenous, non-coding, single-stranded RNAs about 21 nucleotides in length that play a critical role in the regulation of host genome expression at the post-transcriptional level. Emerging evidence has shown that aberrant miRNAs influence a wide range of biological processes including immune cell lineage commitment, differentiation, maturation, immune homeostasis and normal function.

Wnt signaling pathway in rheumatoid arthritis, with special emphasis on the different roles in synovial inflammation and bone remodeling.

Rheumatoid arthritis (RA) is a chronic symmetrical autoimmune disease of unknown etiology that affects primarily the diarthrodial joints. Characteristic features of RA pathogenesis are synovial inflammation and proliferation accompanied by cartilage erosion and bone loss. Fibroblast-like synoviocytes (FLS) display an important role in the pathogenesis of RA.

New advances of DNA methylation and histone modifications in rheumatoid arthritis, with special emphasis on MeCP2.

Epigenetics is a steadily growing research area in many human diseases, especially in autoimmune diseases such as rheumatoid arthritis (RA). RA is an autoimmune disease with unclear etiology characterized by chronic inflammation and joint destruction and fibroblast-like synoviocytes (FLS) display a crucial role in the pathogenesis of RA. Even though the etiology is not yet fully understood, RA is generally considered to be caused by a combination of epigenetic modification, deregulated immunomodulation, and environmental factors.

MeCP2 modulates the canonical Wnt pathway activation by targeting SFRP4 in rheumatoid arthritis fibroblast-like synoviocytes in rats.

Rheumatoid arthritis (RA) is an autoimmune disease characterized by the rheumatoid factor and anti-citrullinated peptide antibody (ACPA) against common autoantigens that are widely expressed within and outside the joints. Many factors participate in the pathogenesis of RA, such as cytokine imbalance, Wnt pathway activation, matrix production, and osteoprotegerin on osteoclasts. Fibroblast-like synoviocytes (FLS) activation has an important role in RA pathogenesis.