Logo image
Specific and nonspecific NK cell activation during virus infection
Journal article   Open access   Peer reviewed

Specific and nonspecific NK cell activation during virus infection

Wayne M Yokoyama, Ayotunde O Dokun, Sungjin Kim, Hamish R.C Smith, Hyun-Seok P Kang and Dortha T Chu
Nature immunology, Vol.2(10), pp.951-956
10/2001
DOI: 10.1038/ni714
PMID: 11550009
url
https://doi.org/10.1038/ni714View
Published (Version of record) Open Access

Abstract

The natural killer (NK) cell activation receptor Ly49H is required for resistance to murine cytomegalovirus (MCMV). We show here that NK cell proliferation and production of interferon-γ (IFN-γ) was not dependent on Ly49H expression during early MCMV infection. During a later phase of infection, however, Ly49H+ NK cells selectively proliferated and this expansion was blocked by anti-Ly49H administration. With vaccinia virus infection, neither the early nor late phase of NK cell proliferation was selective for Ly49H+ NK cells. These findings indicated that Ly49H+ NK cells were specifically activated by MCMV and that MCMV infection was characterized by nonspecific and specific phases of NK cell activation in vivo.

Details

Metrics

Logo image