home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9602.ZIP
/
M9621038.TXT
< prev
next >
Wrap
Text File
|
1996-02-26
|
2KB
|
39 lines
Document 1038
DOCN M9621038
TI Insulin-like growth factor 1 and insulin inhibit HIV type 1 replication
in cultured cells.
DT 9602
AU Germinario RJ; DeSantis T; Wainberg MA; Lady Davis Institute for Medical
Research, Sir Mortimer B.; Davis-Jewish General Hospital, Montreal,
Quebec, Canada.
SO AIDS Res Hum Retroviruses. 1995 May;11(5):555-61. Unique Identifier :
AIDSLINE MED/96093890
AB Insulin-like growth factor 1 and insulin, considered primarily as
metabolic and growth modulatory hormones, were found to inhibit the
replication of HIV-1 in cultured cord blood mononuclear cells and
chronically HIV-infected U937 cells. The effect of IGF-1 was seen at
physiological concentrations or lower (1.7 x 10(-10) M) while that of
insulin was observed at supraphysiological concentrations (8 x 10(-7)
M). The EC50 for IGF-1 was found to be in the physiological range
(2.5-4.5 x 10(-9) M) while that for insulin was considerably higher
(1.1-3.3 x 10(-6) M). Insulin-like growth factor 1 and insulin at the
concentrations employed exhibited no toxicity on the cells used in these
studies. Furthermore, neither IGF-1 nor insulin exhibited any inhibitory
activity on purified reverse transcriptase in vitro. Epidermal growth
factor from 1.6 x 10(-10) to 1.6 x 10(-8) M demonstrated no inhibition
of HIV-1 replication, while IGF-1 inhibited p24 antigen production 49
and 42% at 1.3 x 10(-9) and 1.3 x 10(-8) M IGF-1, respectively. These
results suggest that IGF-1 under certain conditions has significant
inhibitory effects on HIV-1 replication at physiological concentrations.
This may prove to be of therapeutic value in patients infected with
HIV-1.
DE Cell Division/DRUG EFFECTS Cell Survival/DRUG EFFECTS Cells, Cultured
Fetal Blood Human HIV-1/*DRUG EFFECTS/PHYSIOLOGY
Insulin/*PHARMACOLOGY Insulin-Like Growth Factor I/*PHARMACOLOGY
Leukocytes, Mononuclear/CYTOLOGY/VIROLOGY Support, Non-U.S. Gov't
Virus Replication/*DRUG EFFECTS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).