Should we keep rocking? Portraits from targeting Rho kinases in cancer

Graziella Ribeiro de Sousa1, Gabriela Maciel Vieira1, Pablo Ferreira das Chagas1

  • 1Ribeirão Preto Medical School, University of São Paulo, Brazil.

Insights

Rho-associated coiled-coil kinases (ROCK1 and ROCK2) are promising cancer drug targets. However, ROCK inhibition may paradoxically promote cancer spread and metastasis, posing risks in clinical applications.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Rho-associated coiled-coil kinases (ROCK1 and ROCK2) regulate cytoskeleton and are implicated in cancer metastasis.
  • ROCK dysregulation correlates with poorer survival in various cancers, making them attractive therapeutic targets.

Purpose of the Study:

  • To review ROCK functions, roles in adult and pediatric cancers, and prognostic value.
  • To summarize advances in ROCK pharmacological inhibition and discuss potential detrimental effects.

Main Methods:

  • Literature review of ROCK functions, cancer roles, prognostic significance, and therapeutic strategies.
  • Analysis of pre-clinical and clinical data on ROCK inhibitors.
  • Discussion of off-target effects and pro-survival impacts of ROCK inhibition.

Main Results:

  • ROCKs are crucial for cancer metastasis and survival, with controversial prognostic roles in pediatric cancers.
  • Pharmacological inhibition of ROCKs shows promise in pre-clinical models but presents significant challenges.
  • ROCK inhibition can promote cancer stem cell survival, dormancy, and dissemination, alongside context-dependent adverse effects.

Conclusions:

  • ROCK inhibitors offer potential for cancer therapy but require careful consideration of risks.
  • Detrimental effects like enhanced metastasis and resistance necessitate further research for safe and effective anti-ROCK strategies.
  • Understanding ROCKs' complex roles is critical for developing novel cancer treatments, especially in pediatric oncology.

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