Attachment, spreading and migration of melanoma cells on vitronectin. The role of alpha V beta 3 and alpha V beta 5 integrins.

Attachment, spreading and migration of melanoma cells on vitronectin. The role of alpha V beta 3 and alpha V beta 5 integrins.
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黑色素瘤细胞在玻连蛋白上的附着、扩散和迁移。

DOI:
10.1111/j.1600-0625.1996.tb00134.x
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发表时间:
1996
影响因子:
3.6
通讯作者:
Byers,HR
Byers,HR
中科院分区:
医学2区
文献类型:
--
作者:
vanLeeuwen,RL;Yoshinaga,IG;Akasaka,T;Dekker,SK;Vermeer,BJ;Byers,HR

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最近的研究表明αvβ 3整合素是黑色素瘤的肿瘤进展标志物。我们用流式细胞术分析了5个人黑色素瘤细胞系中结合αvβ 3和αvβ5的玻连蛋白和整合素的表达。这些受体在细胞附着,扩散和迁移中的作用进行了研究,使用附着试验,视频延时扩散和迁移试验,并与功能阻断单克隆抗体。来自肿瘤进展后期的细胞系表现出高水平的αvβ 3表达,而与αvβ 5表达没有类似的相关性。细胞在玻连蛋白上的贴壁、铺展和迁移反应与αvβ 3的表达水平密切相关,而与αvβ 5的表达水平无关。αvβ 3整合素的阻断导致细胞粘附、铺展和运动性的显著降低,而针对αvβ 5整合素的功能阻断抗体仅在该整合素表达水平最高的细胞系中抑制细胞粘附。综上所述,我们的研究表明αvβ 3和αvβ 5整合素在黑色素瘤细胞系中的表达水平是异质性的,并且αvβ 5整合素(如果存在)可能仅在初始细胞附着期间起作用,而αvβ 3在细胞铺展和细胞迁移中也起重要作用。
Recentin situstudies suggest the αvβ3integrin is a tumour progression marker in melanoma. We analyzed 5 human melanoma cell lines for their expression of the vitronectin binding αvβ3and αvβ5, integrins using flow cytometry. The role of these receptors in cell attachment, spreading and migration was investigated using attachment assays, video time lapse spreading and migration assays and with function blocking monoclonal antibodies. Cell lines derived from later stages of tumor progression exhibited high levels of αvβ3expression, whereas no similar correlation with αvβ5expression was identified. Cell attachment, spreading and migration response on vitronectin correlated well with the expression level of the αvβ3but not the αvβ5vitronectin receptor. Blocking of the αvβ3integrin resulted in a significant decrease in cell attachment, spreading and motility whereas the function blocking antibody against the αvβ5integrin only inhibited cell attachment in cell lines with the highest level of expression of this integrin. Taken together, our study indicates that the level of expression of the αvβ3and αvβ5integrins is heterogeneous in melanoma cell lines and that the αvβ5integrin, if present, may function only during the initial cell attachment whereas the αvβ3plays an important rôle in cell spreading and cell migration as well.
DOI: 10.1021/bi00329a001
发表时间: 1985-01-01
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
GELB, MH;SVAREN, JP;ABELES, RH
通讯作者: ABELES, RH
DOI: 10.1021/bi00308a036
发表时间: 1984-01-01
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
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发表时间: 1980
期刊: Chemische Berichte
影响因子: --
作者:
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通讯作者: W. Steglich
DOI: 10.1021/bi00308a035
发表时间: 1984-01-01
期刊: BIOCHEMISTRY
影响因子: 2.9
作者:
BOND, MD;VANWART, HE
通讯作者: VANWART, HE