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Overexpression of ROCK1 and ROCK2 inhibits human laryngeal squamous cell carcinoma

Junbo Zhang1, Xue He2, Yueying Ma3

  • 1Department of Otolaryngology, Head and Neck Surgery, Peking University First Hospital Beijing 100034, China.

International Journal of Clinical and Experimental Pathology
|March 11, 2015
PubMed

Insights

Rho-associated coiled-coil containing protein kinase (ROCK) 1 and 2 are overexpressed in laryngeal cancer, correlating with tumor size and metastasis. Inhibiting ROCK1/2 with Y-27632 suppressed cancer cell growth and invasion.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Rho-associated coiled-coil containing protein kinase (ROCK) signaling pathways are implicated in various cancers.
  • ROCK1 and ROCK2 are key isoforms involved in cellular processes like proliferation, migration, and invasion.

Purpose of the Study:

  • To investigate the expression and roles of ROCK1 and ROCK2 in human laryngeal squamous cell carcinoma (LSCC).
  • To determine the correlation between ROCK1/ROCK2 expression and clinicopathological features of LSCC.
  • To evaluate the therapeutic potential of ROCK inhibition in LSCC.

Main Methods:

  • Immunohistochemistry was used to assess ROCK1 and ROCK2 expression in 50 human LSCC samples.
  • LSCC cell lines were treated with the ROCK inhibitor Y-27632 to study the effects on proliferation, migration, and invasion.

Main Results:

  • ROCK1 expression positively correlated with tumor size and lymph node metastasis in LSCC.
  • ROCK2 expression positively correlated with tumor size in LSCC.
  • Inhibition of ROCK1 and ROCK2 by Y-27632 significantly reduced LSCC cell proliferation, migration, and invasion.

Conclusions:

  • ROCK1 and ROCK2 expression are closely associated with tumor growth and lymph node metastasis in LSCC.
  • ROCK1 and ROCK2 may serve as valuable molecular markers for LSCC diagnosis.
  • Targeting ROCK isoforms presents a potential therapeutic strategy for LSCC.
Keywords:
Laryngeal squamous cell carcinomaROCKY-27632lymph node metastasistumor growth

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