home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Overload Trio 2
/
Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO
/
dir26
/
med9410p.zip
/
M94A3150.TXT
< prev
next >
Wrap
Text File
|
1994-10-25
|
3KB
|
43 lines
Document 3150
DOCN M94A3150
TI Inhibition of human herpesvirus 7 infection by anti-CD4 monoclonal
antibodies and HIV-1 gp120.
DT 9412
AU Yasukawa M; Yakushijin Y; Furukawa M; Hato T; Takada K; Fujita S; First
Dep. Int. Med., Ehime University School of Medicine, Japan.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):141 (abstract no. PA0184). Unique
Identifier : AIDSLINE ICA10/94369425
AB OBJECTIVE: We have recently found that human herpesvirus (HHV)-7 shows
tropism to CD4+ T cells, but not to CD4- cells, and that the transport
of intracytoplasmic CD4 molecules to the cell surface is impaired in
HHV-7-infected cells (J. Immunol. in press). Based on these findings, we
speculated that the CD4 molecule might be the receptor for HHV-7, and
the present study was performed to verify this possibility. METHODS: The
ability of anti-CD4 V1 domain monoclonal antibodies (mAbs) to inhibit
the replication of HHV-7 was examined by detection of cytopathic effect,
indirect immunofluorescence, 50% tissue culture infection dose and
quantitative PCR for the virus genome. Similarly, the effect of HIV-1
gp120 on the replication of HHV-7 was examined. RESULTS: Anti-CD4 V1
domain mAbs, which inhibit HIV-1 infection, also appeared to inhibit the
replication of HHV-7. None of anti-CD4 mAbs affected the replication of
HHV-6. Pretreatment of CD4+ T cells with recombinant HIV-1 gp120 also
resulted in inhibition of HHV-7 infection. DISCUSSION AND CONCLUSIONS:
These data strongly suggest that the CD4 molecule is the major receptor
for HHV-7, and that HIV-1 and HHV-7 compete for CD4 as their binding
receptor. The identification of the HHV-7 structure binding to CD4
molecule would shed light on the development of the subcomponent peptide
derived from HHV-7, which selectively inhibits HIV binding but not
affect CD4+ T-cell functions.
DE Antibodies, Monoclonal/*PHARMACOLOGY Antigens,
CD4/IMMUNOLOGY/*PHYSIOLOGY Comparative Study Herpesvirus 7, Human/DRUG
EFFECTS/*PHYSIOLOGY/PATHOGENICITY Human HIV Envelope Protein
gp120/*PHARMACOLOGY HIV-1/*PHYSIOLOGY Receptors, Virus/DRUG
EFFECTS/PHYSIOLOGY Recombinant Proteins/*PHARMACOLOGY
T-Lymphocytes/DRUG EFFECTS/IMMUNOLOGY/*MICROBIOLOGY T4 Lymphocytes/DRUG
EFFECTS/IMMUNOLOGY/*MICROBIOLOGY Virus Replication/*DRUG
EFFECTS/IMMUNOLOGY MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).