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Chapter category: Protein

The Role of LIGHT in Autoimmunity

This chapter appears in the following book:

TNF Superfamily

Edited by: Sanjay Khare
ISBN: 978-1-58706-306-0
» Get more information about this book at landesbioscience.com «

Chapter authors:
Jing Wang and Yang-Xin Fu


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This chapter focuses on the role of LIGHT in the induction of auto- immunity. LIGHT and LTab share the same receptor, LTbR, and coop- erate in lymphoid organogenesis and development of lymphoid structure. Previous findings establish a crucial biological role for LIGHT, a T cell-derived costimulatory ligand, in T cell activation and expansion via a T-T cell dependent manner and the dysregulation of LIGHT activity results in the disturbance of T cell homeostasis and ultimately in the breakdown of peripheral tolerance. Furthermore, the blockade of LIGHT activity ameliorates the severity of T cell-mediated diseases indicating the essential involvement of LIGHT in various pathological conditions. Here, we will review the recent studies about LIGHT mainly in the context of autoimmunity and conclude with a discussion of the potential mechanisms by which LIGHT promotes autoimmunity.

Jing Wang
Department of Pathology and Committee on Immunology, University of Chicago

Yang-Xin Fu
Department of Pathology, University of Chicago

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