在多种非肌肉细胞中存在着收缩蛋白,通常形成一个丝状结构,可能与细胞运动和胞饮作用有关。本文作者发现,人体癌细胞中含有比正常组织更多的收缩蛋白。所研究的肿瘤标本分别取自基底细胞癌、鳞状细胞癌和乳腺癌,对照标本取自正常人皮肤。免疫荧光染色的研究发现, The presence of contractile proteins in many non-muscle cells usually forms a filamentous structure that may be associated with cell motility and pinocytosis. The authors found that human cancer cells contain more contractile proteins than normal tissues. The tumor specimens studied were taken from basal cell carcinoma, squamous cell carcinoma, and breast cancer, respectively, and the control specimens were taken from normal human skin. The study of immunofluorescence staining found that