Cancer associated talin point mutations disorganise cell adhesion and migration.

Cancer associated talin point mutations disorganise cell adhesion and migration.
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DOI:
10.1038/s41598-020-77911-4
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发表时间:
2021-01-11
期刊:
影响因子:
4.6
通讯作者:
Hytönen VP
Hytönen VP
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Azizi L;Cowell AR;Mykuliak VV;Goult BT;Turkki P;Hytönen VP

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Talin-1是介导细胞迁移,粘附和整联蛋白信号传导的多蛋白粘附复合物的关键组成部分,并且在几项研究中与癌症有联系。我们分析了癌症数据库中体细胞突变目录中报道的TALIN-1突变,并开发了生物信息学管道,以预测每个突变的严重程度。然后使用生物化学和细胞生物学实验评估这些预测。通过这种方法,我们能够鉴定出几种影响整联蛋白活性,肌动蛋白募集并在肝癌1定位中删除的​​TALIN-1突变。我们通过评估对迁移,侵袭和增殖的影响来探索TALIN-1信号反应的潜在变化。总的来说,这项研究描述了一种实验的管道方法,以评估其功能效应和潜在的致病性。我们的发现表明,Talin-1中的癌症相关点突变会影响细胞行为,因此可能有助于癌症的进展。
Talin-1 is a key component of the multiprotein adhesion complexes which mediate cell migration, adhesion and integrin signalling and has been linked to cancer in several studies. We analysed talin-1 mutations reported in the Catalogue of Somatic Mutations in Cancer database and developed a bioinformatics pipeline to predict the severity of each mutation. These predictions were then assessed using biochemistry and cell biology experiments. With this approach we were able to identify several talin-1 mutations affecting integrin activity, actin recruitment and Deleted in Liver Cancer 1 localization. We explored potential changes in talin-1 signalling responses by assessing impact on migration, invasion and proliferation. Altogether, this study describes a pipeline approach of experiments for crude characterization of talin-1 mutants in order to evaluate their functional effects and potential pathogenicity. Our findings suggest that cancer related point mutations in talin-1 can affect cell behaviour and so may contribute to cancer progression.
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