|
||
Journal of Experimental Medicine, Vol 180, 757-762, Copyright © 1994 by Rockefeller University Press
ARTICLES |
WR Godfrey, FF Fagnoni, MA Harara, D Buck and EG Engleman
Department of Pathology, Stanford University School of Medicine, California 94305.
The human OX-40 cell surface antigen is a CD4+ T cell activation marker that acts as a costimulatory receptor and is a member of the nerve growth factor receptor/tumor necrosis factor (TNF) receptor family. Using a soluble form of the receptor, the extracellular region fused with human immunoglobulin Fc, we expression cloned the human OX-40 ligand cDNA from a library derived from an activated B lymphoblastoid cell line MSAB. The encoded protein is identified as gp34, a type II transmembrane antigen previously known to be expressed only by human T cell lymphotropic virus 1-infected cells. We describe gp34 as a new member of the TNF family, and find that the recombinant ligand expressed in COS cells costimulates phorbol myristate acetate, phytohemagglutinin, and anti-CD3-induced CD4+ T cell proliferation.
This article has been cited by other articles:
| TABLE OF CONTENTS |
|