home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Software Vault: The Sapphire Collection
/
Software Vault (Sapphire Collection) (Digital Impact).ISO
/
cdr16
/
med9410e.zip
/
M94B0799.TXT
< prev
next >
Wrap
Text File
|
1994-11-11
|
2KB
|
40 lines
Document 0799
DOCN M94B0799
TI Edema induced by factors released by AIDS-associated Kaposi's sarcoma
cells (AIDS-KS cell) (Meeting abstract).
DT 9412
AU Nakamura S; Murakami-Mori K; Sakurada S; Rajeeve S; Rao N; Weich H;
Salahuddin SZ; Inst. of Molecular Medicine and Technology, Pasadena, CA
91105
SO Proc Annu Meet Am Assoc Cancer Res; 35:A402 1994. Unique Identifier :
AIDSLINE ICDB/94602090
AB Angiogenesis and in some cases edema are two major components of
AIDS-KS. Cultured spindle cells isolated from various KS lesions of
patients with AIDS transplanted in nude mice induce KS-like lesions of
murine origin. The critical factor for this purpose is oncostatin H. We
report here that AIDS-KS cells also release another factor that mediates
vascular hyperpermeability (VHP) resulting in edema in our model system.
This factor in CH induces VHP and growth of vascular endothelial cells.
These activities bind heparin sepharose and elute in 0.5 M NaCl
fraction. The endothelial cell growth promoting activities were
identified in 0.5 M and 2.0 M NaCl fractions. Anti-bFGF IgG inhibited
endothelial cell growth promoting activity in 2.0 M NaCl fraction.
Anti-VEGF serum inhibited VHP and endothelial cell growth promoting
activities of 0.5 M NaCl fraction. Both 0.5 M and 2.0 M NaCl fractions
induced angiogenesis in rabbit cornea assay. Significant level of
VEGF-specific mRNA was present in AIDS-KS cells (3.9 kb band). In
summary, it appears that AIDS-KS cells produce VEGF and bFGF-like
activities that mediate two important features of AIDS-KS: edema and
angiogenesis.
DE Acquired Immunodeficiency Syndrome/COMPLICATIONS/*PATHOLOGY Animal
Cell Division Edema/*ETIOLOGY/METABOLISM Endothelial Growth
Factors/GENETICS/IMMUNOLOGY Endothelium, Vascular/*PATHOLOGY
Fibroblast Growth Factor, Basic/IMMUNOLOGY Human IgG/PHARMACOLOGY
Lymphokines/GENETICS/IMMUNOLOGY Mice Mice, Nude
Neovascularization/*METABOLISM/PATHOLOGY RNA, Messenger/METABOLISM
Sarcoma, Kaposi's/ETIOLOGY/*PATHOLOGY/SECRETION MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).