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The colony-forming ability of rat 3Y1 fibroblasts transformed by adenovirus type 12 (Ad12) was drastically reduced when the cells were cultivated for 18 h in medium augmented with 300 micrograms/ml of liposomes composed of either phosphatidylcholine (PC) or phosphatidylinositol. In contrast, those
Alkyl-lysophospholipids inhibit the growth of Meth A sarcoma cells in vitro. In contrast, murine bone marrow macrophages are not sensitive to the destructive effect of these substances. Since alkyl-lysophospholipids are antimetabolites in the synthesis of 3-sn-phosphatidylcholine, tumor cell
A general model has been proposed for the fusion mechanisms of class I viral fusion proteins. According to this model a metastable trimer, anchored in the viral membrane through its transmembrane domain, transits to a trimeric prehairpin intermediate, anchored at its opposite end in the target