Expression, localization, and functional activity of TL1A, a novel Th1-polarizing cytokine in inflammatory bowel disease. Export

@article{citeulike:6009138, abstract = {TL1A is a novel TNF-like factor that acts as a costimulator of IFN-gamma secretion through binding to the death domain-containing receptor, DR3. The aim of this study was to test the hypothesis that TL1A may play an important role in inflammatory bowel disease (IBD) by functioning as a Th1-polarizing cytokine. The expression, cellular localization, and functional activity of TL1A and DR3 were studied in intestinal tissue specimens as well as isolated lamina propria mononuclear cells from IBD patients and controls. TL1A mRNA and protein expression was up-regulated in IBD, particularly in involved areas of Crohn's disease (CD; p < 0.03 vs control). TL1A production was localized to the intestinal lamina propria in macrophages and CD4(+) and CD8(+) lymphocytes from CD patients as well as in plasma cells from ulcerative colitis patients. The amount of TL1A protein and the number of TL1A-positive cells correlated with the severity of inflammation, most significantly in CD. Increased numbers of immunoreactive DR3-positive T lymphocytes were detected in the intestinal lamina propria from IBD patients. Addition of recombinant human TL1A to cultures of PHA-stimulated lamina propria mononuclear from CD patients significantly augmented IFN-gamma production by 4-fold, whereas a minimal effect was observed in control patients. Our study provides evidence for the first time that the novel cytokine TL1A may play an important role in a Th1-mediated disease such as CD.}, author = {Bamias, Giorgos and Martin, Charles and Marini, Marco and Hoang, Sharon and Mishina, Margarita and Ross, William G. and Sachedina, Muhammadreza A. and Friel, Charles M. and Mize, James and Bickston, Stephen J. and Pizarro, Theresa T. and Wei, Ping and Cominelli, Fabio}, citeulike-article-id = {6009138}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/14568967}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=14568967}, day = {1}, issn = {0022-1767}, journal = {Journal of immunology (Baltimore, Md. : 1950)}, month = {November}, number = {9}, pages = {4868--4874}, posted-at = {2009-10-26 12:42:19}, priority = {3}, title = {Expression, localization, and functional activity of TL1A, a novel Th1-polarizing cytokine in inflammatory bowel disease.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/14568967}, volume = {171}, year = {2003} }

TY - JOUR ID - citeulike:6009138 L3 - citeulike-article-id:6009138 N2 - TL1A is a novel TNF-like factor that acts as a costimulator of IFN-gamma secretion through binding to the death domain-containing receptor, DR3. The aim of this study was to test the hypothesis that TL1A may play an important role in inflammatory bowel disease (IBD) by functioning as a Th1-polarizing cytokine. The expression, cellular localization, and functional activity of TL1A and DR3 were studied in intestinal tissue specimens as well as isolated lamina propria mononuclear cells from IBD patients and controls. TL1A mRNA and protein expression was up-regulated in IBD, particularly in involved areas of Crohn's disease (CD; p < 0.03 vs control). TL1A production was localized to the intestinal lamina propria in macrophages and CD4(+) and CD8(+) lymphocytes from CD patients as well as in plasma cells from ulcerative colitis patients. The amount of TL1A protein and the number of TL1A-positive cells correlated with the severity of inflammation, most significantly in CD. Increased numbers of immunoreactive DR3-positive T lymphocytes were detected in the intestinal lamina propria from IBD patients. Addition of recombinant human TL1A to cultures of PHA-stimulated lamina propria mononuclear from CD patients significantly augmented IFN-gamma production by 4-fold, whereas a minimal effect was observed in control patients. Our study provides evidence for the first time that the novel cytokine TL1A may play an important role in a Th1-mediated disease such as CD. IS - 9 JF - Journal of immunology (Baltimore, Md. : 1950) SN - 0022-1767 EP - 4874 TI - Expression, localization, and functional activity of TL1A, a novel Th1-polarizing cytokine in inflammatory bowel disease. VL - 171 SP - 4868 AU - Bamias, Giorgos AU - Martin, Charles AU - Marini, Marco AU - Hoang, Sharon AU - Mishina, Margarita AU - Ross, William AU - Sachedina, Muhammadreza AU - Friel, Charles AU - Mize, James AU - Bickston, Stephen AU - Pizarro, Theresa AU - Wei, Ping AU - Cominelli, Fabio PY - 2003/11/01/ UR - http://view.ncbi.nlm.nih.gov/pubmed/14568967 ER -