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M9630415.TXT
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1996-02-27
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38 lines
Document 0415
DOCN M9630415
TI HIV-induced syncytia in peripheral blood cell cultures crawl by
extending giant pseudopods.
DT 9603
AU Shutt DC; Stapleton JT; Kennedy RC; Soll DR; Department of Biological
Sciences, University of Iowa, Iowa City; 52242, USA.
SO Cell Immunol. 1995 Dec;166(2):261-74. Unique Identifier : AIDSLINE
MED/96102274
AB It was previously demonstrated that HIV-induced syncytia of the
immortalized T cell line SupT1 reorganize their cytoskeleton and form a
spherical supernuclear complex, thus mimicking the organization,
polarity, and morphology of a single SupT1 cell. Then, through extension
of a single, giant pseudopod, these syncytia, which grow to more than
100 times the volume of a single SupT1 cell, translocate along a
substratum. To verify that syncytium motility is not peculiar to the
SupT1 cell line, we have analyzed the cytoskeletal organization and
motile capabilities of HIV-induced syncytia formed in peripheral blood
cell cultures containing more than 90% CD4-positive cells. The results
demonstrate that although peripheral blood T cells differ from SupT1
cells in size and morphology, they are continuously motile and
translocate along a substratum in a manner quite similar to that of
SupT1 cells, and peripheral blood T cell syncytia induced by HIV-1LAI as
well as two additional clinical isolates translocate by the extension of
a giant anterior pseudopod in a fashion indistinguishable from that of
HIV-induced SupT1 syncytia. Together, these results support the
generalization that HIV-induced T cell syncytia are motile.
DE Adult Cell Fusion Cell Line Cell Movement Cell Nucleus/PATHOLOGY
Cytoplasm/PATHOLOGY/VIROLOGY CD4 Lymphocyte Count CD4-Positive
T-Lymphocytes/*PATHOLOGY/VIROLOGY Giant Cells/*PATHOLOGY/VIROLOGY
Human HIV Infections/PATHOLOGY HIV-1/ISOLATION & PURIF/*PATHOGENICITY
Male Pseudopodia/*PATHOLOGY/VIROLOGY Support, U.S. Gov't, Non-P.H.S.
Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).