Neonatal infection with a milk-borne virus is independent of beta7 integrin- and L-selectin-expressing lymphocytes.

Abstract:

:Mouse mammary tumor virus (MMTV) is acquired by neonates through milk and first infects lymphocytes in Peyer's patches. We show here that newborn mice lacking beta7 integrin or L-selectin were infected with MMTV at wild-type levels in both their lymphoid and mammary tissues. Superantigen-mediated activation and cognate T cell deletion were also unimpaired in both types of null mice. A large proportion of neonatal Peyer's patch lymphocytes in wild-type mice were beta7 and beta1 integrin low and both populations increased in response to MMTV infection. These results suggest that adhesion molecules other than beta7 integrin or L-selectin play a role in lymphocyte homing in the gut, peripheral lymph nodes and mammary gland in response to MMTV infection.

journal_name

Eur J Immunol

authors

Czarneski J,Berguer P,Bekinschtein P,Kim DC,Hakimpour P,Wagner N,Nepomnaschy I,Piazzon I,Ross SR

doi

10.1002/1521-4141(200204)32:4<945::AID-IMMU945>3.0

keywords:

subject

Has Abstract

pub_date

2002-04-01 00:00:00

pages

945-56

issue

4

eissn

0014-2980

issn

1521-4141

journal_volume

32

pub_type

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