The membrane-cytoskeletal protein 4.1N is involved in the process of cell adhesion, migration and invasion of breast cancer cells.

The membrane-cytoskeletal protein 4.1N is involved in the process of cell adhesion, migration and invasion of breast cancer cells.
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膜细胞骨架蛋白4.1N参与乳腺癌细胞的细胞粘附、迁移和侵袭过程

DOI:
10.3892/etm.2012.653
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发表时间:
2012-10
影响因子:
2.7
通讯作者:
Kang Q
Kang Q
中科院分区:
医学4区
文献类型:
--
作者:
Ji Z;Shi X;Liu X;Shi Y;Zhou Q;Liu X;Li L;Ji X;Gao Y;Qi Y;Kang Q

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蛋白4.1N属于蛋白4.1超家族,其将跨膜蛋白连接到肌动蛋白细胞骨架。最近的证据表明,蛋白4.1在肿瘤抑制中是重要的。然而,4.1N在乳腺癌转移中的功能在很大程度上是未知的。在本研究中,使用具有不同转移能力的MCF-7、T-47 D和MDA-MB-231乳腺癌细胞系。发现蛋白4.1N在低转移性MCF-7和中等转移性T-47 D细胞系中表达,并且主要与细胞-细胞连接相关。然而,在高转移性MDA-MB-231细胞中未检测到4.1N表达。此外,在MDA-MB-231细胞中重新表达4.1N抑制细胞粘附、迁移和侵袭。结果表明,蛋白4.1N是乳腺癌细胞转移的负调控因子。
Protein 4.1N belongs to the protein 4.1 superfamily that links transmembrane proteins to the actin cytoskeleton. Recent evidence has shown that protein 4.1 is important in tumor suppression. However, the functions of 4.1N in the metastasis of breast cancer are largely unknown. In the present study, MCF-7, T-47D and MDA-MB-231 breast cancer cell lines with various metastatic abilities were employed. Protein 4.1N was found to be expressed in poorly metastatic MCF-7 and middle metastatic T-47D cell lines, and was predominantly associated with cell-cell junctions. However, no 4.1N expression was detected in the highly metastatic MDA-MB-231 cells. Moreover, re-expression of 4.1N in MDA-MB-231 cells inhibited cell adhesion, migration and invasion. The results suggest that protein 4.1N is a negative regulator of cell metastasis in breast cancer.
DOI: 10.1093/hmg/8.2.267
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Nectin 样分子 1 是一种蛋白质 4.1N 相关蛋白,可将蛋白质 4.1N 从细胞质募集到质膜。
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