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M94A0732.TXT
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1994-10-21
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Document 0732
DOCN M94A0732
TI HIV strains and the proliferative response of mononuclear cells from
normal donors.
DT 9412
AU Adams S; Todd B; Pope J; NCHVR, Royal Children's Hospital, Brisbane,
Qld.
SO Annu Conf Australas Soc HIV Med. 1993 Oct 28-30;5:106 (poster no. 62).
Unique Identifier : AIDSLINE ASHM5/94348923
AB Recent interest has focused on the different biological properties of
HIV-1 isolates. Non-syncytium-inducing (NSI) isolates, detectable at all
stages of HIV infection, are preferentially monocytotropic in contrast
to SI isolates which precede symptoms of AIDS and are T-cell tropic. We
are examining the effects of NSI and SI virus strains on the
proliferative responses of seronegative PBMC in vitro. Peripheral
lymphocytes from seronegative donors were infected with NSI and SI virus
at similar MOI, and PHA, autologous EBV LCL and tetanus toxin were added
at 0, 3, 7 and 14 days postinfection (PI). At 3, 7 or 14 days
responsiveness to PHA was reduced by as much as 56-66% in the cells of
donor WC infected with the SI isolate compared to the response of cells
infected with the NSI isolate. The responses to EBV antigen were also
lower in cells infected with the SI isolate at 3, 7 or 14 days PI. This
observation is being further studied to determine conclusively whether
SI virus interferes with proliferative responsiveness in vitro.
DE Blood Donors Cytopathogenic Effect, Viral/IMMUNOLOGY Human HIV
Infections/*IMMUNOLOGY HIV Seronegativity/IMMUNOLOGY
HIV-1/CLASSIFICATION/*IMMUNOLOGY/PATHOGENICITY In Vitro Lymphocyte
Transformation/*IMMUNOLOGY T-Lymphocytes/*IMMUNOLOGY Virulence
MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).