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Onco-condensates: formation, multi-component organization, and biological functions.

Chenxi Xu1, Arum Kim1, Joshua M Corbin1

  • 1Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA; Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA.

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Cancer cells hijack biomolecular condensates (large, membrane-less assemblies) to drive tumor growth. Understanding these "onco-condensates" is key to developing new cancer therapies.

Keywords:
biomolecular condensationcancerdiseaseintrinsically disordered region (IDR)onco-condensatephase separationsmall moleculetherapeutic

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Area of Science:

  • Cell Biology
  • Biochemistry
  • Cancer Biology

Background:

  • Cellular processes occur within membrane-less biomolecular assemblies called condensates.
  • Condensates concentrate components, facilitating diverse cellular events.
  • Cancer hijacks these mechanisms, forming onco-condensates that promote tumorigenesis.

Purpose of the Study:

  • To summarize advances in understanding how multi-component onco-condensates form and are organized.
  • To highlight the role of onco-condensates in promoting oncogenesis, using chromatin and transcription deregulation as examples.
  • To explore the therapeutic potential of targeting onco-condensates.

Main Methods:

  • Review of current literature on biomolecular condensates and cancer biology.
  • Analysis of mechanisms underlying onco-condensate formation and function.
  • Case studies focusing on chromatin and transcription deregulation in oncogenesis.

Main Results:

  • Onco-condensates abnormally elevate proliferative processes or suppress tumor-suppressive pathways.
  • Specific examples illustrate how onco-condensates involving chromatin and transcription contribute to cancer.
  • Understanding onco-condensate organization is crucial for their oncogenic roles.

Conclusions:

  • Biomolecular condensation is a critical mechanism co-opted by cancer.
  • Targeting onco-condensates presents a promising avenue for novel cancer therapeutics.
  • Further research into onco-condensate structure and function can guide therapeutic strategies.