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Regulator of G protein signaling 20 enhances cancer cell aggregation, migration, invasion and adhesion

Lei Yang1, Maggie M K Lee1, Manton M H Leung1

  • 1Division of Life Science, Biotechnology Research Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.

Cellular Signalling
|August 7, 2016
PubMed

Insights

Regulator of G protein signaling 20 (RGS20) protein promotes tumor cell metastasis. Overexpression of RGS20 enhances cancer cell migration and adhesion, while its knockdown impairs these processes, suggesting RGS20 as a potential therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Regulator of G protein signaling (RGS) proteins are implicated in various cancers.
  • The specific role of RGS20 in tumorigenesis is largely undefined.
  • RGS20 expression is elevated in metastatic melanoma and breast tumors.

Purpose of the Study:

  • To investigate the functional role of RGS20 in cancer cell mobility and adhesion.
  • To determine the effect of RGS20 modulation on key metastatic indicators.

Main Methods:

  • Overexpression and shRNA-mediated knockdown of RGS20 in human cancer cell lines (HeLa, MDA-MB-231, H1299, A549).
  • Assays included hanging drop aggregation, wound healing, transwell migration, and invasion assays.
  • Analysis of vimentin and E-cadherin expression levels.

Main Results:

  • RGS20 overexpression significantly enhanced cell aggregation, migration, invasion, and adhesion.
  • Knockdown of RGS20 impaired these metastatic properties.
  • RGS20 elevated vimentin expression and decreased E-cadherin expression, markers associated with epithelial-mesenchymal transition and metastasis.

Conclusions:

  • RGS20 expression promotes tumor cell metastasis by enhancing cell mobility and adhesion.
  • RGS20 may serve as a potential biomarker or therapeutic target for metastatic cancers.
Keywords:
CancerMetastasisRGS20Tumorigenesis

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