Reduced insulin endocytosis in serum-transformed fibroblasts demonstrated by flow cytometry.

Reduced insulin endocytosis in serum-transformed fibroblasts demonstrated by flow cytometry.
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流式细胞术证明血清转化的成纤维细胞中胰岛素内吞作用减少。

DOI:
10.1002/cyto.990050310
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发表时间:
1984
期刊:
Cytometry
影响因子:
--
通讯作者:
Pollack,R
Pollack,R
中科院分区:
--
文献类型:
--
作者:
Murphy,RF;Powers,S;Cantor,CR;Pollack,R

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肿瘤转化常常导致生长控制丧失以及细胞表面特性的随之变化。通过流式细胞荧光法测量小鼠成纤维细胞血清或锚定转化后各种探针内吞作用的变化。在具有不同生长特性的四种细胞系中,没有观察到右旋糖酐(液相)或组蛋白(非特异性吸附)内吞作用的重大差异。然而,对于转化为血清或锚定独立的细胞系,观察到受体介导的α-巨球蛋白内化减少。此外,观察到小麦胚芽凝集素增加和胰岛素内吞作用减少,但仅限于血清转化体。血清转化体特有的变化不能用麦芽凝集素或胰岛素结合的变化来解释。讨论了这些观察结果对血清转化和无血清培养基中生长所需胰岛素的可能影响。
Neoplastic transformation often results in the loss of growth control and concomitant changes in cell surface properties. The changes in endocytosis of a variety of probes after serum or anchorage transformation were measured for mouse fibroblasts by flow cytofluorometry. No major differences in dextran (fluid phase) or histone (nonspecific‐adsorptive) endocytosis were observed among four cell lines with different growth properties. However, decreased receptor‐mediated internalization of α‐macroglobulin was observed for cell lines transformed to either serum or anchorage independence. Furthermore, increased wheat germ agglutinin and decreased insulin endocytosis were observed, but only in serum transformants. The changes specific to serum transformants were not accounted for by changes in binding of wheat germ agglutinin or insulin. The possible implications of these observations regarding serum transformation and the insulin requirement for growth in serum‐free medium are discussed.
使用荧光雌激素探针对雌激素受体进行细胞荧光分析。
DOI: --
发表时间: 1983
期刊: Cytometry
影响因子: --
作者:
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通讯作者: G. Barrows
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发表时间: 1979
影响因子: 11.1
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发表时间: 1977
期刊: The Journal of biological chemistry
影响因子: --
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期刊: NATURE-NEW BIOLOGY
影响因子: --
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通讯作者: SAMBROOK, J
DOI: --
发表时间: 1973
影响因子: 5.6
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