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Biotech / Medical : OXIGENE INC. (OXGN)

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To: keokalani'nui who wrote (199)4/18/2001 12:23:55 PM
From: keokalani'nui  Read Replies (1) of 273
 
Agents that Inhibit Endothelial Cells
Several endogenous angiogenesis inhibitors or agents that directly inhibit endothelial cell proliferation are undergoing phase I/II clinical evaluation, either alone or in combination with chemotherapy (Table 1). These compounds are usually of low molecular weight, except for endostatin, which is a 20 kD C-terminal fragment of collagen XVIII. Phase II clinical trials in several tumor types are under way with thalidomide, despite its withdrawal from sale in 1961 after being held responsible for the birth of hundreds of phocomelus children. A recent phase II study of thalidomide has demonstrated its antitumor activity in patients with refractory multiple myeloma [57]. Although these compounds all directly inhibit endothelial cells, their molecular targets on endothelial cells are diverse. In particular, combretastatin is unique since it induces apoptosis in proliferating endothelial cells, leading to blood flow shutdown to tumors rather than to surrounding normal tissues.

theoncologist.alphamedpress.org
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