alexa T cell lymphokines modulate bFGF-induced smooth muscle cell fibrinolysis and migration.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Wang W, Chen HJ, Schwartz A, Cannon PJ, Rabbani LE, Wang W, Chen HJ, Schwartz A, Cannon PJ, Rabbani LE

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Abstract Smooth muscle cell (SMC) fibrinolysis is necessary for SMC migration. To determine whether the T cell lymphokines interleukin 4 (IL-4) and interferon-gamma (IFN-gamma) modulate SMC fibrinolysis and migration induced by basic fibroblast growth factor (bFGF), we examined the effects of IL-4 and IFN-gamma on human SMC tissue-type plasminogen activator (tPA), urokinase-type plasminogen activator (UPA), and plasminogen activator inhibitor 1 (PAI-1) antigen production, determined by enzyme-linked immunosorbent assays. Although IL-4 had no effects on SMC tPA, UPA, and PAI-1 production, it potentiated bFGF-induced tPA, UPA, and PAI-1 antigens. IL-4 plus bFGF resulted in a net increase in SMC fibrinolytic activity. IFN-gamma did not significantly affect bFGF induction of SMC tPA and PAI-1 antigens. However, IFN-gamma significantly decreased bFGF-mediated induction of SMC UPA antigen. IFN-gamma decreased the IL-4 plus bFGF induction of both tPA and UPA antigens. IL-4 increased and IFN-gamma abrogated bFGF induction of in vitro SMC migration through a modified micro-Boyden chamber. Therefore, IL-4 and IFN-gamma modulate bFGF-mediated induction of in vitro vascular SMC fibrinolysis and migration.
This article was published in Am J Physiol and referenced in Journal of AIDS & Clinical Research

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