Published online 20 March 2006 doi:10.1084/jem.20060215
Rockefeller University Press, 0022-1007 $8.00
JEM, Volume 203, Number 4, 805-808
Virus-specific CD4+ T cells: ready for direct attack
Kevin N. Heller,
Cagan Gurer, and
Christian Münz
K.N.H., C.G., and C.M. are at Laboratory of Viral Immunobiology and Christopher H. Browne Center for Immunology and Immune Diseases, The Rockefeller University, New York, NY 10021
CORRESPONDENCE C.M.: munzc{at}rockefeller.edu
Abstract
CD4+ T cells are classically thought to orchestrate adaptive immune responses. But recent studies demonstrate that they can also kill infected cells directly. A new paper shows that highly efficient processing of Epstein Barr virus (EBV) glycoproteins for presentation on MHC class II makes virus-transformed B cells susceptible to lysis by CD4+ T cells. Thus, antiviral vaccines should aim to stimulate both helper and cytolytic CD4+ T cells.

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