The regulation of T cell homeostasis and autoimmunity by T cell-derived LIGHT

Jing Wang, James C. Lo, Amy Foster, Ping Yu, Helen M. Chen, Yang Wang, Koji Tamada, Lieping Chen, Yang Xin Fu

Research output: Contribution to journalArticle

193 Citations (Scopus)

Abstract

Costimulatory molecules on antigen-presenting cells (APCs) play an important role in T cell activation and expansion. However, little is known about the surface molecules involved in direct T-T cell interaction required for their activation and expansion. LIGHT, a newly discovered TNF superfamily member (TNFSF14), is expressed on activated T cells and immature dendritic cells. Here we demonstrate that blockade of LIGHT activity can reduce anti-CD3-mediated proliferation of purified T cells, suggesting that T cell-T cell interaction is essential for this proliferation. To test the in vivo activity of T cell-derived LIGHT in immune homeostasis and function, transgenic (Tg) mice expressing LIGHT in the T cell lineage were generated. LIGHT Tg mice have a significantly enlarged T cell compartment and a hyperactivated peripheral T cell population. LIGHT Tg mice spontaneously develop severe autoimmune disease manifested by splenomegaly, lymphadenopathy, glomerulonephritis, elevated autoantibodies, and severe infiltration of various peripheral tissues. Furthermore, the blockade of LIGHT activity ameliorates the severity of T cell-mediated diseases. Collectively, these findings establish a crucial role for this T cell-derived costimulatory ligand in T cell activation and expansion; moreover, the dysregulation of T cell-derived LIGHT leads to altered T cell homeostasis and autoimmune disease.

Original languageEnglish (US)
Pages (from-to)1771-1780
Number of pages10
JournalJournal of Clinical Investigation
Volume108
Issue number12
DOIs
StatePublished - Dec 1 2001

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Autoimmunity
Homeostasis
T-Lymphocytes
Light
Transgenic Mice
Cell Communication
Autoimmune Diseases
Splenomegaly
Cell Lineage
Antigen-Presenting Cells
Glomerulonephritis
Autoantibodies
Dendritic Cells

ASJC Scopus subject areas

  • Medicine(all)

Cite this

The regulation of T cell homeostasis and autoimmunity by T cell-derived LIGHT. / Wang, Jing; Lo, James C.; Foster, Amy; Yu, Ping; Chen, Helen M.; Wang, Yang; Tamada, Koji; Chen, Lieping; Fu, Yang Xin.

In: Journal of Clinical Investigation, Vol. 108, No. 12, 01.12.2001, p. 1771-1780.

Research output: Contribution to journalArticle

Wang, J, Lo, JC, Foster, A, Yu, P, Chen, HM, Wang, Y, Tamada, K, Chen, L & Fu, YX 2001, 'The regulation of T cell homeostasis and autoimmunity by T cell-derived LIGHT', Journal of Clinical Investigation, vol. 108, no. 12, pp. 1771-1780. https://doi.org/10.1172/JCI200113827
Wang, Jing ; Lo, James C. ; Foster, Amy ; Yu, Ping ; Chen, Helen M. ; Wang, Yang ; Tamada, Koji ; Chen, Lieping ; Fu, Yang Xin. / The regulation of T cell homeostasis and autoimmunity by T cell-derived LIGHT. In: Journal of Clinical Investigation. 2001 ; Vol. 108, No. 12. pp. 1771-1780.
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