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1996-03-04
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Document 0566
DOCN M9640566
TI SIVsmmPBj14 induces expression of a mucosal integrin on macaque
lymphocytes.
DT 9604
AU Gummuluru S; Novembre FJ; Seshi B; Dewhurst S; Department of
Microbiology and Immunology, University of; Rochester Medical Center,
New York 14642, USA.
SO Virology. 1996 Jan 1;215(1):97-100. Unique Identifier : AIDSLINE
MED/96146746
AB The PBj14 isolate of simian immunodeficiency virus, SIVsmmPBj14, is an
acutely pathogenic lentivirus that causes severe gastrointestinal
disease in macaque monkeys. The studies reported here examine the basis
for the enteropathic phenotype of SIVsmmPBj14, using flow cytometric
analysis of cultured macaque lymphocytes and immunohistochemical
staining of tissue specimens from virus-infected macaques. The data show
that enteropathic molecular clones of SIVsmmPBj14 induce expression of
the alpha E beta 7 integrin, which is believed to mediate mucosal
retention of T-cells, whereas molecular clones from nonenteropathic
derivatives of SIVsmmPBj14 do not do so. Thus, elevated expression of
alpha E beta 7 may ber responsible, at least in part, for the
accumulation of abnormally large numbers of T-cells within the
intestinal mucosa during acute SIVsmmPBj14 infection.
DE Animal Cells, Cultured Human Integrins/*BIOSYNTHESIS Intestinal
Mucosa/*IMMUNOLOGY Lymphocytes/CYTOLOGY/*IMMUNOLOGY Macaca Support,
U.S. Gov't, P.H.S. SIV/*IMMUNOLOGY/ISOLATION & PURIF JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).