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M9490480.TXT
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1994-09-19
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Document 0480
DOCN M9490480
TI Sarcoma viruses containing the mos oncogene induce lesions resembling
Kaposi's sarcoma.
DT 9411
AU Stoica G; Department of Veterinary Pathobiology, College of Veterinary;
Medicine, Texas A and M University, College Station 77843.
SO In Vivo. 1994 Jan-Feb;8(1):43-7. Unique Identifier : AIDSLINE
MED/94331589
AB Kaposi's sarcoma is most accurately described as a multifocal
angioproliferative lesion primarily involving the skin, although some
studies indicated concomitant and/or exclusive visceral involvement. The
mechanism(s) involved in Kaposi's sarcoma development, especially AIDS
multiorgan distributed form, is not completely understood. Recent
reports have identified a murine retrovirus, MoMuSV-349 that induces
multiorgan disseminated angiosarcomatous tumors which resemble Kaposi's
sarcoma when virus is inoculated intraperitoneally in newborn BALB/c
mice. Performed time point experiment on mice infected with MoMuSV-349
indicated a two stages development of Kaposi's sarcoma-like tumors;
sarcomatous and angiosarcomatous. Preliminary studies have demonstrated
the pathogenesis of the disease process and the role of angiogenic
growth factors released by the spindled cells in the stage development
of mouse tumors. It is hypothesized that growth factors such as
fibroblast growth factors released by the spindled cells stimulate the
proliferation of endothelial cells and neovascularization which is an
essential component of Kaposi's sarcoma-like tumors. Understanding the
mechanism(s) of endothelial cells proliferation and neovascularization
as a response to viral insult and microenvironmental changes will raise
the possibilities of developing new therapeutic approaches to block this
process.
DE Acquired Immunodeficiency Syndrome/COMPLICATIONS Animal *Cell
Transformation, Neoplastic Comparative Study *Genes, mos Human Mice
Mice, Inbred BALB C Moloney Sarcoma Virus/GENETICS/*PATHOGENICITY
Retroviridae Infections/*PATHOLOGY Sarcoma, Experimental/*PATHOLOGY
Sarcoma, Kaposi's/ETIOLOGY/*PATHOLOGY Tumor Virus Infections/*PATHOLOGY
JOURNAL ARTICLE REVIEW REVIEW, TUTORIAL
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).