Abstract:
:Endothelial cells are involved in important pathological situations. They could be the target for infectious processes as for example in Cowdriosis, an important disease in cattle due to the rickettsia Cowdria ruminantium prevalent in the south of the Sahara. They are also connected to angiogenic processes related to tumor invasion.Our results indicate that AIDS related Kaposi sarcoma cells may be of endothelial origin. We conclude from our data the mobility of those cells, related to the expression of the metalloproteinases (especially the 92 kD form of the enzyme), is an important factor in Kaposi saroma dissemination and is the main factor limiting the scale up of Cowdriosis vaccine production in Bovine Umbilical Endothelial Cell line. We showed that PMA and TNF increased the 92 kD Metallaproteinase and that TGFβ, produced in an inactive form in cultures of Human Umbilical Vein Endothelial Cells, is a potential inhibitor of Kaposi sarcoma spreading, and could also be useful in improving our process for Cowdria ruminantium vaccine production, since it reduces the sensitivity of the cells to mechanical stress without affecting significantly the overall infectious process.
journal_name
Cytotechnologyjournal_title
Cytotechnologyauthors
Marique T,Blankaert D,Hendrick V,Raschella A,Declerck B,Alloin C,Teixera-Guerra I,Sandron D,Cherlet M,Parent D,Kirkpatrick C,Van Vooren JP,Wérenne Jdoi
10.1023/A:1007928203997subject
Has Abstractpub_date
1997-11-01 00:00:00pages
183-9issue
1-3eissn
0920-9069issn
1573-0778journal_volume
25pub_type
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