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M9650955.TXT
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1996-03-30
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Document 0955
DOCN M9650955
TI Activation of the human immunodeficiency virus long terminal repeat by
abrasion of the skin in transgenic mice.
DT 9505
AU Morrey JD; Bourn SM; Morris JL; Bunch TD; Sidwell RW; Department of
Animal, Dairy and Veterinary Sciences, Utah State; University, Logan
84322-4700, USA.
SO Intervirology. 1994;37(6):315-20. Unique Identifier : AIDSLINE
MED/96022718
AB Mechanical wounding was shown to activate the human immunodeficiency
virus type 1 (HIV-1) long terminal repeat (LTR) in the skin of
transgenic mice. Both noninvasive rubbing and scratching of the skin
resulted in a range of 4- to 44-fold increased levels of luciferase
reporter gene activities when assayed 24-48 h after wounding. Moreover,
long-term noninvasive rubbing each day for 17 days resulted in similar
increased levels of luciferase activity. Experiments were done to
determine whether the HIV-1 LTR-luciferase transgene might be activated
when pups were nursed on the mammary tissues of transgenic mice.
Luciferase reporter gene activity in mammary glands skin following
nursing was significantly higher than in skin from non-pregnant
transgenic mice or transgenic mice 20 days post-conception, which
suggests that the natural abrasive action of nursing resulted in
activation of the LTR. These results may have implications for sexual
transmission and maternal-to-infant transmission of HIV-1.
DE Animal Female Gene Expression Regulation, Viral Genes, Reporter
Human HIV Long Terminal Repeat/*GENETICS HIV-1/*GROWTH & DEVELOPMENT
Luciferase/BIOSYNTHESIS Mammae Mice Mice, Transgenic Pregnancy
*Skin/INJURIES Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S.
Transgenes Virus Activation/*PHYSIOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).