title: Th17 cell induction and immune regulatory effects.
abstract: The T help 1 (Th1) and Th2 cell classification have provided the framework for understanding CD4(+) T cell biology and the interplay between innate and adaptive immunity for almost two decades. Recent studies have defined a previously unknown arm of the CD4(+) T cell effector response, the Th17 lineage, which promises to change our understanding of immune regulation, immune pathogenesis and host defense. The factors that specify differentiation of IL-17 producing effector T cells from naïve T cell precursors are being rapidly discovered and are providing insights into mechanisms by which signals from cells of the innate immune system guide alternative pathways of Th1, Th2, or Th17 development. In this review, we will focus on recent studies that have identified new subsets of Th cells, new insights regarding the induced generation and differentiation mechanisms of Th17 cells and immune regulatory effects.
authors.affiliation: State Key laboratory of Pathogen and Biosecurity, National Center for Biomedical Analysis, Army Center for Microbial Detection and Research, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences (AMMS), Beijing, China.
authors.forename: Yujing
authors.initials: Y
authors.lastname: Bi
authors.forename: Guangwei
authors.initials: G
authors.lastname: Liu
authors.forename: Ruifu
authors.initials: R
authors.lastname: Yang
mesh_terms: D000818:Animals; D001327:Autoimmune Diseases / Q000276:immunology; D002454:Cell Differentiation; D019070:Cell Lineage; D006801:Humans; D007113:Immunity, Innate; D007249:Inflammation / Q000276:immunology; D020381:Interleukin-17 / Q000096:biosynthesis; D010272:Parasitic Diseases / Q000276:immunology; D016176:T-Lymphocyte Subsets / Q000166:cytology / Q000276:immunology* / Q000378:metabolism; D006377:T-Lymphocytes, Helper-Inducer / Q000166:cytology / Q000276:immunology* / Q000378:metabolism; D018417:Th1 Cells / Q000276:immunology; D018418:Th2 Cells / Q000276:immunology
chemical_list: D020381:Interleukin-17