PMID- 10072490 OWN - NLM STAT- MEDLINE DCOM- 19990414 LR - 20071114 IS - 0022-1767 (Print) IS - 0022-1767 (Linking) VI - 162 IP - 5 DP - 1999 Mar 1 TI - Islet-specific Th1, but not Th2, cells secrete multiple chemokines and promote rapid induction of autoimmune diabetes. PG - 2511-20 AB - Migration of CD4 cells into the pancreas represents a hallmark event in the development of insulin-dependent diabetes mellitus. Th1, but not Th2, cells are associated with pathogenesis leading to destruction of islet beta-cells and disease onset. Lymphocyte extravasation from blood into tissue is regulated by multiple adhesion receptor/counter-receptor pairs and chemokines. To identify events that regulate entry of CD4 cells into the pancreas, we transferred Th1 or Th2 cells induced in vitro from islet-specific TCR transgenic CD4 cells into immunodeficient (NOD.scid) recipients. Although both subsets infiltrated the pancreas and elicited multiple adhesion receptors (peripheral lymph node addressin, mucosal addressin cell adhesion molecule-1, LFA-1, ICAM-1, and VCAM-1) on vascular endothelium, entry/accumulation of Th1 cells was more rapid than that of Th2 cells, and only Th1 cells induced diabetes. In vitro, Th1 cells were also distinguished from Th2 cells by the capacity to synthesize several chemokines that included lymphotactin, monocyte chemoattractant protein-1 (MCP-1), and macrophage inflammatory protein-1alpha, whereas both subsets produced macrophage inflammatory protein-1beta. Some of these chemokines as well as RANTES, MCP-3, MCP-5, and cytokine-response gene-2 (CRG-2)/IFN-inducible protein-10 (IP-10) were associated with Th1, but not Th2, pancreatic infiltrates. The data demonstrate polarization of chemokine expression by Th1 vs Th2 cells, which, within the microenvironment of the pancreas, accounts for distinctive inflammatory infiltrates that determine whether insulin-producing beta-cells are protected or destroyed. FAU - Bradley, L M AU - Bradley LM AD - Departments ofImmunology and Neuropharmacology, The Scripps Research Institute, La Jolla, CA 92037, USA. lbradley@scripps.edu FAU - Asensio, V C AU - Asensio VC FAU - Schioetz, L K AU - Schioetz LK FAU - Harbertson, J AU - Harbertson J FAU - Krahl, T AU - Krahl T FAU - Patstone, G AU - Patstone G FAU - Woolf, N AU - Woolf N FAU - Campbell, I L AU - Campbell IL FAU - Sarvetnick, N AU - Sarvetnick N LA - eng GR - AI37935/AI/NIAID NIH HHS/United States GR - HD29764/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Immunol JT - Journal of immunology (Baltimore, Md. : 1950) JID - 2985117R RN - 0 (Chemokines) RN - 0 (Receptors, Antigen, T-Cell, alpha-beta) SB - IM MH - Animals MH - Chemokines/*physiology MH - Diabetes Mellitus, Type 1/*etiology MH - Female MH - Islets of Langerhans/*immunology MH - Mice MH - Mice, Inbred NOD MH - Mice, Transgenic MH - Receptors, Antigen, T-Cell, alpha-beta/analysis MH - Th1 Cells/*immunology MH - Th2 Cells/*immunology EDAT- 1999/03/11 00:00 MHDA- 1999/03/11 00:01 CRDT- 1999/03/11 00:00 PHST- 1999/03/11 00:00 [pubmed] PHST- 1999/03/11 00:01 [medline] PHST- 1999/03/11 00:00 [entrez] PST - ppublish SO - J Immunol. 1999 Mar 1;162(5):2511-20.