Sumoylation of cyclin and its therapeutic potential for cancer

Hong-Yeoul Ryu1, Mark Hochstrasser2

  • 1KNU G-LAMP Project Group, KNU Institute of Basic Sciences, School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu, 41566, South Korea.

Animal Cells and Systems
|December 10, 2025
PubMed

Insights

Sumoylation precisely regulates cyclins D and E, crucial for cell cycle control and preventing cancer. Targeting this modification offers new precision medicine strategies for cyclin-related malignancies.

Area of Science:

  • Cell Biology
  • Molecular Oncology
  • Biochemistry

Background:

  • Cell cycle progression relies on precise regulation by cyclins and cyclin-dependent kinases (CDKs).
  • Post-translational modifications, especially sumoylation, are increasingly recognized as critical regulators of cyclin function.
  • Dysregulation of the cell cycle is a fundamental aspect of cancer development.

Purpose of the Study:

  • To review the role of sumoylation in governing cyclin dynamics and cell cycle fidelity.
  • To explore the implications of aberrant sumoylation in cancer progression.
  • To discuss the therapeutic potential of targeting the SUMO pathway for malignancies.

Main Methods:

  • Literature review of recent studies on sumoylation, cyclins, and cell cycle regulation.
  • Analysis of the impact of sumoylation on cyclin stability, localization, and activity.
  • Examination of the link between sumoylation, cyclin dysregulation, and oncogenesis.

Main Results:

  • Sumoylation critically influences the stability, localization, and activity of cyclins D and E, essential for the G1/S transition.
  • Aberrant sumoylation of cyclins can enhance their oncogenic potential, contributing to cancer progression.
  • The SUMO pathway represents a promising target for therapeutic intervention in cyclin-related cancers.

Conclusions:

  • Sumoylation is a key regulator of cyclin function, maintaining cell division fidelity.
  • Targeting sumoylation pathways offers novel therapeutic strategies for precision medicine in oncology.
  • Further understanding of sumoylation's role in cyclin regulation may revolutionize treatments for cyclin-dependent diseases.

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