Ueda M J, Ito T, Okada T S, Ohnishi S I
J Cell Biol. 1976 Nov;71(2):670-4. doi: 10.1083/jcb.71.2.670.
BHK 21 cells can adhere to a protein-coated plastic dish in the presence of Ca2+ at temperatures above 12 degrees C. However, they cannot adhere below 8 degrees C. The ESR spectrum of cells spin-labeled with a stearic acid label indicated that the membrane fluidity changed characteristically at 10 degrees C, 20 degrees C, and 30 degrees C. The critical temperature for cell adhesion coincided well with one of the characteristic temperatures for the membrane fluidity change. In the case of adhesion in the presence of Mg2+, no such correlation was observed.
在温度高于12摄氏度且存在Ca2+的情况下,BHK 21细胞能够附着于蛋白质包被的塑料培养皿。然而,在8摄氏度以下它们无法附着。用硬脂酸标记自旋标记的细胞的电子自旋共振光谱表明,膜流动性在10摄氏度、20摄氏度和30摄氏度时发生了特征性变化。细胞附着的临界温度与膜流动性变化的特征温度之一非常吻合。在Mg2+存在下进行附着的情况下,未观察到这种相关性。