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Updated: Jul 6, 2026

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
Published on: September 26, 2013
IL-23/IL-17 biology and therapeutic considerations
1Department of Immunology, MD Anderson Cancer Center, Houston, Texas 77030, USA. cdong@mdanderson.org
Abstract:
CD4+ T-lymphocytes are pivotal in immune responses to pathogens and in pathogenesis of various inflammatory diseases. Upon activation by the innate immune system, naïve CD4+ helper T (T(H))-lymphocytes differentiate into effector cells that are characterized by their cytokine profiles. T-Helper 1 (T(H)1) and T(H)2 lymphocytes have long been regarded as two sides of a coin in adaptive immune responses. However, recent data indicate a novel lineage of T(H) lymphocytes specified by the production of interleukin-17 (IL-17). Here I describe the recent literature on the regulatory mechanisms underlying generation of IL-17-expressing T-lymphocytes. In addition, I also summarize on the biological function of these cells in infection, autoimmunity and allergy. IL-17 and IL-17-expressing inflammatory T(H) lymphocytes may thus serve as good targets for therapeutic intervention in treatment of patients with inflammatory diseases.
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