AI Article Synopsis

  • Targeted therapies like tyrosine kinase inhibitors (TKIs) are effective for several cancers but can cause heart damage, necessitating research into protective methods.
  • Specific RSK isoforms, particularly RSK1 and RSK2, promote cancer growth, so targeting these could help suppress tumors.
  • Inhibiting RSKs could also prevent heart issues related to TKIs, making RSK inhibitors potential dual-purpose agents for cancer treatment and cardiac protection.

Article Abstract

Targeted therapy, such as tyrosine kinase inhibitors (TKIs), has been approved to manage various cancer types. However, TKI-induced cardiotoxicity is a limiting factor for their use. This issue has raised the need for investigating potential cardioprotective techniques to be combined with TKIs. Ribosomal S6-kinases (RSKs) are a downstream effector of the mitogen-activated-protein-kinase (MAPK) pathway; specific RSK isoforms, such as RSK1 and RSK2, have been expressed in cancer cells, in which they increase tumour proliferation. Selective targeting of those isoforms would result in tumour suppression. Moreover, activation of RSKs expressed in the heart has resulted in cardiac hypertrophy and arrhythmia; thus, inhibiting RSKs would result in cardio-protection. This review article presents an overview of the usefulness of RSK inhibitors that can be novel agents to be assessed in future research for their effect in reducing cancer proliferation, as well as protecting the heart from cardiotoxicity induced by TKIs.

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Source
http://dx.doi.org/10.1007/s12265-023-10431-4DOI Listing

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