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Updated: Apr 2, 2026

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
Published on: September 26, 2013
STAT4 is required for IL-23 responsiveness in Th17 memory cells and NKT cells
Nicole L Glosson-Byers1, Sarita Sehra2, Mark H Kaplan1
1Department of Pediatrics; Herman B Wells Center for Pediatric Research ; Indianapolis, IN USA ; Department of Microbiology and Immunology; Indiana University School of Medicine ; Indianapolis, IN USA.
Abstract:
STAT4 is a critical mediator of inflammatory immunity and is required for all known IL-12 biological responses, including the induction of IFN-γ and development of Th1 cells. We demonstrate that IL-23, an IL-12-related cytokine, also requires STAT4 for optimal IL-17 secretion from memory T helper cells and NKT cells. Although IL-23 stimulation had modest effects on STAT4 activation, STAT4-deficiency results in reduced Il23r expression. These data demonstrate a restricted requirement for STAT4 in innate and adaptive IL-17-secreting T cell responses that might contribute to inflammatory immunity.
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