TPM3-ALK expression induces changes in cytoskeleton organisation and confers higher metastatic capacities than other ALK fusion proteins

被引：43

作者：

Armstrong, Florence

Lamant, Laurence

Hieblot, Corinne

Delsol, Georges

Touriol, Christian

机构：

[1] Ctr Physiopathol Toulouse Purpan, INSERM U563, Dept Oncogenesis & Signalling Haematopoiet Cells, Toulouse, France

[2] CHU Rangueil, INSERM U589, F-31054 Toulouse, France

来源：

EUROPEAN JOURNAL OF CANCER | 2007年 / 43卷 / 04期

关键词：

anaplastic lymphoma kinase (ALK); anaplastic large cell lymphomas (ALCL); inflammatory myofibroblastic tumours (IMT); X-ALK variants; experimental lung metastasis; actin cytoskeleton;

D O I：

10.1016/j.ejca.2006.12.005

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Translocations of the anaplastic lymphoma kinase (ALK) gene result in the production of a number of oncogenic ALK fusion proteins implicated in tumour development. We have previously shown that X-ALK fusion proteins have differential effects on the proliferation, transformation, and invasion properties of NIH3T3 cells in vitro. In the present study, we have investigated the metastatic potential of various X-ALK expressing cell lines using an experimental lung metastasis assay. We have shown that TPM3-ALK expression bestows higher metastatic capacities than other X-ALK fusion proteins and in addition, that TPM3-ALK fusion protein expression specifically induces changes in cell morphology and cytoskeleton Organisation. Co-immunoprecipitation studies demonstrate a specific interaction between TPM3-ALK and endogenous tropomyosin. Together the specific actions of TPM3-ALK on the cytoskeleton Organisation offer an interesting hypothesis with respect to the higher cell motility and metastatic potential of this fusion protein. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：640 / 646

页数：7

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