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Morphological changes of cultured endothelial cells after microinjection of toxins that act on the cytoskeleton.

机译:微量注射作用于细胞骨架的毒素后,培养的内皮细胞的形态变化。

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Clostridium novyi alpha-toxin and C. difficile toxins A and B (all 200 to 300 kDa) and C. botulinum C2-I toxin (50 kDa) caused a delayed and persistent retraction and rounding of microinjected cells. Microinjected phalloidin acted fast and reversibly. Unlike C2-I toxin, phalloidin passed through the intercellular junctions. Specific antitoxin applied to the medium did not prevent the action of microinjected C. novyi or C. difficile toxin B. Microinjected antitoxin protected against the toxins applied with the medium or injected into the same cells.
机译:诺氏梭菌α-毒素和艰难梭菌毒素A和B(均为200至300 kDa)和肉毒梭菌C2-I毒素(50 kDa)导致显微注射细胞的延迟和持续回缩和舍入。微注射的鬼笔环肽作用迅速且可逆。与C2-I毒素不同,鬼笔环肽通过细胞间连接。施加到培养基上的特定抗毒素不会阻止微注射的诺氏梭菌或艰难梭菌毒素B的作用。微注射的抗毒素可以保护免受介质施加或注射到同一细胞中的毒素的侵害。

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