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Updated: May 9, 2025

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RSK2 and its binding partners: an emerging signaling node in cancers

Hye Suk Lee1,2,3, Sung-Jun Cho4, Han Chang Kang2,3

  • 1BK21-4th, College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.

Archives of Pharmacal Research
|May 4, 2025
PubMed

Insights

Ribosomal S6 Kinase 2 (RSK2) is a key signaling node in cancer, modulating cell proliferation, transformation, and immune responses. Understanding its complex network is crucial for developing effective anticancer drugs and avoiding side effects.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Cell Signaling

Background:

  • Mitogen-activated protein kinase (MAPK) pathways are critical in cancer development and therapeutic agent discovery.
  • Ribosomal S6 Kinase 2 (RSK2), downstream of ERKs, has been understudied in human diseases except for Coffin-Lowry syndrome.
  • RSK2's role in cancer signaling and its potential as a therapeutic target are gaining attention.

Purpose of the Study:

  • To elucidate the comprehensive role of RSK2 in cancer development.
  • To detail RSK2's binding partners, signaling network, and crosstalk.
  • To establish a new paradigm for RSK2 as a central signaling node.

Main Methods:

  • Extensive laboratory research over 25 years.
  • Elucidation of RSK2 binding partners.
  • Analysis of RSK2's signaling network and crosstalk.

Main Results:

  • RSK2 acts as a signaling node regulating diverse cellular processes.
  • Identified RSK2's modulation of cell proliferation, transformation, and cell cycle.
  • Demonstrated RSK2's role in chromatin remodeling, immune response, and inflammation.

Conclusions:

  • RSK2 is an emerging and important target for anticancer drug development.
  • A deeper understanding of RSK2's mechanism and signaling network is essential to avoid adverse effects of inhibitors.
  • RSK2's multifaceted role highlights its significance in cancer biology.
Keywords:
Binding partnersCellular processesRSK2Signal transductionSignaling nodes

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