PMID- 11157195 OWN - NLM STAT- MEDLINE DCOM- 20010607 LR - 20190727 IS - 1524-4628 (Electronic) IS - 0039-2499 (Linking) VI - 32 IP - 2 DP - 2001 Feb TI - Reduction of inflammatory response in the mouse brain with adenoviral-mediated transforming growth factor-ss1 expression. PG - 544-52 AB - Background and Purpose-Chemokines have been shown to play an important role in leukocyte and monocyte/macrophage infiltration into ischemic regions. The purpose of this study is to identify whether overexpression of the active human transforming growth factor-ss1 (ahTGF-ss1) can downregulate expression of monocyte chemoattractant protein-1 (MCP-1), macrophage inflammatory protein-1alpha (MIP-1alpha), and intercellular adhesion molecule-1 (ICAM-1) and reduce ischemic brain injury. METHODS: -Overexpression of transforming growth factor-ss1 (TGF-ss1) was achieved through adenoviral gene transfer. Five days after adenoviral transduction, the mouse underwent 30 minutes of middle cerebral artery occlusion followed by 1 to 7 days of reperfusion. TGF-ss1, MCP-1, MIP-1alpha, and ICAM-1 were detected by enzyme-linked immunosorbent assay and immunohistochemistry. Infarct areas and volumes were measured by cresyl violet staining. RESULTS: -MCP-1 and MIP-1alpha expression is increased after middle cerebral artery occlusion, and double-labeled immunostaining revealed that MCP-1 is colocalized with neurons and astrocytes. Viral-mediated TGF-ss1 overexpression was significantly greater at measured time points, with a peak at 7 to 9 days. The expression of MCP-1 and MIP-1alpha, but not ICAM-1, was reduced in the mice overexpressing ahTGF-ss1 (P:<0.05). Furthermore, infarct volume was significantly reduced in the mice overexpressing ahTGF-ss1 (P:<0.05). CONCLUSIONS: -This study demonstrates that MCP-1 and MIP-1alpha expressed in the ischemic region may play an important role in attracting inflammatory cells. The reduction of MCP-1 and MIP-1alpha, but not ICAM-1, in the mice overexpressing ahTGF-ss1 suggests that the neuroprotective effect of TGF-ss1 may result from the inhibition of chemokines during cerebral ischemia and reperfusion. FAU - Pang, L AU - Pang L AD - Department of Surgery, Medical School, University of Michigan, Ann Arbor, MI 48109-0532, USA. FAU - Ye, W AU - Ye W FAU - Che, X M AU - Che XM FAU - Roessler, B J AU - Roessler BJ FAU - Betz, A L AU - Betz AL FAU - Yang, G Y AU - Yang GY LA - eng GR - NS23870/NS/NINDS NIH HHS/United States GR - NS35089/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Stroke JT - Stroke JID - 0235266 RN - 0 (Chemokine CCL2) RN - 0 (Chemokine CCL3) RN - 0 (Chemokine CCL4) RN - 0 (Macrophage Inflammatory Proteins) RN - 0 (TGFB1 protein, human) RN - 0 (Tgfb1 protein, mouse) RN - 0 (Transforming Growth Factor beta) RN - 0 (Transforming Growth Factor beta1) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Adenoviridae/genetics/*metabolism MH - Animals MH - Blood Flow Velocity MH - Brain/blood supply/immunology/*metabolism/virology MH - Brain Ischemia/immunology/*metabolism/pathology MH - Chemokine CCL2/metabolism MH - Chemokine CCL3 MH - Chemokine CCL4 MH - Disease Models, Animal MH - Gene Transfer Techniques MH - Genetic Vectors/genetics/metabolism/pharmacology MH - Humans MH - Immunohistochemistry MH - Infarction, Middle Cerebral Artery MH - Inflammation/drug therapy/immunology/*metabolism MH - Intercellular Adhesion Molecule-1/metabolism MH - Macrophage Inflammatory Proteins/metabolism MH - Mice MH - Reperfusion MH - Transforming Growth Factor beta/*biosynthesis/genetics/pharmacology MH - Transforming Growth Factor beta1 EDAT- 2001/02/07 11:00 MHDA- 2001/06/08 10:01 CRDT- 2001/02/07 11:00 PHST- 2001/02/07 11:00 [pubmed] PHST- 2001/06/08 10:01 [medline] PHST- 2001/02/07 11:00 [entrez] AID - 10.1161/01.str.32.2.544 [doi] PST - ppublish SO - Stroke. 2001 Feb;32(2):544-52. doi: 10.1161/01.str.32.2.544.