MICROVISCOSITY CHANGES DURING DIFFERENTIATION OF NEUROBLASTOMA-CELLS

被引:37
作者
DELAAT, SW [1 ]
VANDERSAAG, PT [1 ]
ADNELEMANS, S [1 ]
SHINITZKY, M [1 ]
机构
[1] WEIZMANN INST SCI,DEPT MEMBRANE RES,REHOVOT,ISRAEL
关键词
D O I
10.1016/0005-2736(78)90019-6
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Microviscosity η of the plasma-membrane lipid matrix was measured in exponentially growing and differentiating C1300 mouse neuroblastoma cells, attached to a glass substratum, by fluorescence polarisation of 1,6-diphenyl-1,3,5-hexatriene. Upon differentiation η decreases progressively, reaching values below those observed in the growth phase. Treatment of the cells with dipalmitoyl phosphatidylcholine vesicles reversibly inhibits morphological differentiation. The results show that a high membrane fluidity is a prerequisite for differentiation. © 1978.
引用
收藏
页码:188 / 193
页数:6
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