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Role of the focal adhesion protein TRIM15 in colon cancer development

Ok-Hee Lee1, Jinkyoung Lee2, Keun Ho Lee2

  • 1Department of Biomedical Science, CHA University, Seongnam-si, Gyeonggi-do, Republic of Korea; Severance Integrative Research Institute for Cerebral and Cardiovascular Diseases, Yonsei University Health System, Seoul, Republic of Korea.

Biochimica Et Biophysica Acta
|December 3, 2014
PubMed

Insights

Tripartite motif containing 15 (TRIM15) protein suppresses cell migration by localizing to focal adhesions. TRIM15 downregulation in colon cancer correlates with increased cell migration and tumor growth, suggesting a tumor suppressor role.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Cancer Research

Background:

  • Tripartite motif containing (TRIM) proteins are involved in diverse biological processes.
  • The specific functions of TRIM15 in cell regulation and cancer are not fully understood.

Purpose of the Study:

  • To investigate the role of TRIM15 in cell migration and its potential involvement in colon cancer.
  • To identify TRIM15 interacting proteins within the integrin adhesome.

Main Methods:

  • Co-localization studies to determine TRIM15 localization.
  • Domain mapping to identify critical functional regions.
  • Protein-protein interaction screening with the integrin adhesome.
  • Analysis of TRIM15 expression levels in colon cancer tissues.

Main Results:

  • TRIM15 localizes to focal adhesions via homo-dimerization and suppresses cell migration.
  • B-box2 and PRY domains are crucial for TRIM15's localization and inhibitory effects on migration.
  • TRIM15 interacts with proteins involved in actin cytoskeleton dynamics.
  • TRIM15 is downregulated in colon cancer, and its expression level correlates with migration and tumor growth.

Conclusions:

  • TRIM15 acts as a regulator of cell migration by integrating into the integrin adhesome.
  • TRIM15 functions as a tumor suppressor in colon cancer, with its downregulation promoting tumor progression.
Keywords:
Cell migrationColon cancerFocal adhesionTRIM15

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