Th17 cell induction and immune regulatory effects

Area of Science:

• Immunology
• Cell Biology

Background:

• The classification of T helper 1 (Th1) and Th2 cells has long guided CD4(+) T cell biology.
• Recent research has identified the Th17 cell lineage, a novel arm of the CD4(+) T cell effector response.

Purpose of the Study:

• To review recent studies on Th17 cells.
• To highlight new insights into Th17 cell differentiation and immune regulatory effects.

Main Methods:

• Review of recent scientific literature.
• Analysis of studies identifying new T helper cell subsets.
• Examination of research on Th17 cell generation and differentiation mechanisms.

Main Results:

• Identification of a previously unknown Th17 cell lineage.
• Rapid discovery of factors specifying Th17 cell differentiation.
• Insights into how innate immune signals influence Th1, Th2, and Th17 cell development.

Conclusions:

• The Th17 lineage significantly impacts our understanding of immune regulation, pathogenesis, and host defense.
• Ongoing research is rapidly elucidating the mechanisms governing Th17 cell differentiation and function.