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MYSM-1 suppresses migration and invasion in renal carcinoma through inhibiting epithelial-mesenchymal transition

Lei Zhou1, Liyin Shi2, Hua Guo1

  • 1National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, China.

Tumour Biology : the Journal of the International Society for Oncodevelopmental Biology and Medicine
|September 28, 2015
PubMed

Insights

MYSM-1 is downregulated in renal cell carcinoma (RCC) and suppresses its metastasis. Low MYSM-1 expression correlates with poor prognosis, indicating its potential as a therapeutic target for kidney cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Renal cell carcinoma (RCC) is the most common kidney cancer, characterized by high metastatic potential.
  • The molecular mechanisms driving RCC metastasis are not fully understood.
  • Previous proteomics studies indicated MYSM-1 downregulation in non-metastatic RCC tissues.

Purpose of the Study:

  • To investigate the expression status of MYSM-1 in renal cell carcinoma (RCC).
  • To determine the correlation between MYSM-1 expression and RCC patient prognosis and metastasis.
  • To elucidate the biological role of MYSM-1 in RCC cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT).

Main Methods:

  • Immunohistochemistry on renal carcinoma tissue microarrays to assess MYSM-1 expression.
  • In vitro studies using renal carcinoma cell lines with MYSM-1 knockdown (siRNA) and overexpression.
  • Assessment of cell proliferation, migration, invasion, and EMT markers.

Main Results:

  • MYSM-1 expression was significantly decreased in renal carcinoma tissues compared to normal controls.
  • Low MYSM-1 expression was strongly associated with poor overall prognosis and increased metastasis.
  • MYSM-1 suppressed renal cell carcinoma cell proliferation, migration, and invasion.
  • MYSM-1 was found to inhibit the epithelial-mesenchymal transition (EMT) process.

Conclusions:

  • MYSM-1 acts as a tumor suppressor in renal cell carcinoma.
  • Downregulation of MYSM-1 is linked to aggressive disease and metastasis in RCC.
  • MYSM-1 may inhibit RCC metastasis by suppressing EMT, suggesting its potential as a therapeutic target.
Keywords:
EMTMYSM-1MetastasisPrognosisRenal carcinoma

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