Anti-Tnf Monoclonal antibody, clone NQ7-YU33 [PE/Cy7®]

Ethnopharmacological relevance: Forsythiae Fructuse water extract (FSE) is a water-soluble component extracted from the traditional Chinese medicine Forsythiae Fructuse (The fruit of Forsythia suspensa (Thunb.) Vahl) usually used to treat inflammatory diseases. However, little is known about the therapeutic effect of FSE on liver fibrosis. Aim of the study: The purpose of our study was to investigate the therapeutic effect of FSE on liver fibrosis and reveal the underlying mechanism. Materials and methods: Liver fibrosis model was established by subcutaneous injection of olive oil containing 40% CCl4. Rat liver tissue morphologic pathology was investigated by using HE staining, Masson staining and Sirius red staining. Several biochemical markers including liver (ALT, AST, AKP, gamma-GT), fibrosis (HA, LN, PC III, Col IV) and inflammation (IL-6, IL-1 beta, TNF-alpha) were determined by using Elisa kits. Immunohistochemistry was used to observe the distribution of alpha-SMA and COL1 in liver tissue. Effects of FSE on inflammatory pathway (TLR4/MyD88/NF-kappa B) and fibrotic pathway (TGF-beta/smads) were detected by western blot and qPCR. Results: The results showed that hepatic histopathological injury, abnormal liver function, fibrosis and inflammation induced by CCl4 were improved by FSE (2.5, 5 g/kg). Immunohistochemistry and western blot results indicated that the expression of alpha-SMA and COL1 in liver tissue was inhibited by FSE (2.5, 5 g/kg). Western blot and qPCR results further proved that FSE (2.5, 5 g/kg) inhibited the transduction of TLR4/MyD88/NF-kappa B and TGF-beta/smads signaling pathways. Conclusion: FSE can inhibit the expression of inflammatory factors and fibrotic cytokines, reduce liver injury, and inhibit the development of liver fibrosis through TLR4/MyD88/NF-kappa B and TGF-beta/smads signaling pathways.

Objectives Cytokines play a pivotal role in inflammatory bowel disease (IBD). We investigated the expression of inflammatory and regulatory cytokines in inflamed and uninflamed mucosal samples of ulcerative colitis patients. Methods Twenty-five ulcerative colitis patients were enrolled. Bioptic samples from inflamed and not inflamed intestinal areas were obtained. Multiplex analysis for inflammatory and regulatory cytokines was performed. Serum C-reactive protein (CRP) was assessed. Endoscopic Mayo score and histological simplified Geboes score were calculated. Results Interleukin (IL)-1Ra, IL-6, IL-8, IL-17, induced Protein (IP)-10, monocyte chemoattractant protein (MCP)-1, macrophage inflammatory protein (MIP)-1a, MIP-1b resulted increased in ulcerative colitis inflamed vs ulcerative colitis not inflamed areas. No differences were registered between conventional and anti-tumor necrosis factor-a regimens. No difference with CRP levels was found. IL-7 resulted reduced in patients with endoscopic Mayo score >= 2. All the not inflamed samples had a Geboes score <2A, while all the inflamed specimens had a Geboes score >= 2B. IL-1Ra resulted increased in the group with a Geboes score >= 4. Conclusions Inflamed and adjacent not inflamed mucosal areas in ulcerative colitis patients share detailed inflammatory molecular pathways, but can be differentiated endoscopically and histologically on the basis of specific cytokines levels. This underlines the complexity of the mucosal cytokine network in ulcerative colitis and highlights the major limitations of a single proinflammatory target therapeutic strategy in IBD.