Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P05231 (interleukin-6)
 23,907 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

During neuronal-induced inflammation, mast cells may respond to stimuli such as neuropeptides in an FcepsilonRI-independent manner. In this study, we characterized human mast cell responses to substance P (SP), nerve growth factor (NGF), calcitonin gene-related peptide (CGRP) and vasoactive intestinal polypeptide (VIP) and compared these responses to human mast cell responses to immunoglobulin E (IgE)/anti-IgE and compound 48/80. Primary cultured mast cells, generated from CD34(+) progenitors in the presence of stem cell factor and interleukin-6 (IL-6), and human cultured mast cells (LAD2) were stimulated with these and other stimuli (gastrin, concanavalin A, radiocontrast media, and mannitol) and their degranulation and chemokine production was assessed. VIP and SP stimulated primary human mast cells and LAD cells to degranulate; gastrin, concanavalin A, radiocontrast media, mannitol, CGRP and NGF did not activate degranulation. While anti-IgE stimulation did not induce significant production of chemokines, stimulation with VIP, SP or compound 48/80 potently induced production of monocyte chemoattractant protein-1, inducible protein-10, monokine induced by interferon-gamma (MIG), RANTES (regulated on activation, normal, T-cell expressed, and secreted) and IL-8. VIP, SP and compound 48/80 also activated release of tumour necrosis factor, IL-3 and granulocyte-macrophage colony-stimulating factor, but not IL-4, interferon-gamma or eotaxin. Human mast cells expressed surface neurokinin 1 receptor (NK1R), NK2R, NK3R and VIP receptor type 2 (VPAC2) but not VPAC1 and activation of human mast cells by IgE/anti-IgE up-regulated expression of VPAC2, NK2R, and NK3R. These studies demonstrate the pattern of receptor expression and activation of mast cell by a host of G-protein coupled receptor ligands and suggest that SP and VIP activate a unique signalling pathway in human mast cells. These results are likely to have direct relevance to neuronally induced inflammatory diseases.
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PMID:Neuropeptides activate human mast cell degranulation and chemokine production. 1792 33

Sixty cases with primary knee OA were equally categorized into six groups with EHI (Gs 1, 2, 3) or without (Gs 4, 5, 6). GI included cases with HCV, GII cases with RHS & HCV and GIII cases with a history of non-active schistosomiasis whereas Gs 4, 5 & 6 included cases without EHI. Clinical examination with inclusion criteria of pathological manifestations w\as associated with biochemical evaluation of adhesion molecules (E-selectin, P-selectin, intracellular adhesion molecule-3 "ICAM-3") in plasma and synovial fluid. Synovial fluid indices (IgG, IgA, IgM, & C3) were evaluated as well as indices of inflammation and oxidative stress (Beta 2 microglobulin, Haptaglobulin, fibronectin, total thiol, superoxide dismutase, thiobarbituric acid reactive substance & hyaluronan) in synovial fluid and indices activating fibrogenesis in serum and plasma (procollagen III, plasma prolidase, Interleukin-1 beta, Interleukin-6 & TNF alpha). The results showed a positive relationship between indices activating vascular damage, fibrogenesis and immuno-inflammatory response with higher change magnitude in EHI cases particularly with combined HCV & RHS. This implement the dual role of hepatic insult and intestinal amoebiasis on immune mediated mechanisms activating inflammatory response in OA cases reflecting common signaling pathways associated with pathogenesis of multifaceted origin.
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PMID:Dual impact of chronic liver disease and amaebiasis on immunopathogenesis of primary osteoarthritis in Egyptians. 1792 12