MCM2 in human cancer: functions, mechanisms, and clinical significance

Yaoqi Sun1, Zhongping Cheng2, Shupeng Liu3,4

  • 1Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.

Abstract

Insights

Minichromosome maintenance 2 (MCM2) dysfunction drives cancer by impairing DNA replication and cell proliferation. Targeting MCM2 shows promise for cancer treatment and immunotherapy.

Area of Science:

  • Molecular Biology
  • Oncology
  • Genetics

Background:

  • Aberrant DNA replication is a primary driver of genomic instability, leading to cancer initiation and progression.
  • Minichromosome maintenance 2 (MCM2), a key component of the eukaryotic helicase, is crucial for DNA replication.
  • MCM2 dysfunction is implicated in the development and advancement of various cancers by disrupting DNA replication and cell proliferation.

Purpose of the Study:

  • To investigate the role of MCM2 in cancer development and progression.
  • To evaluate MCM2 as a potential biomarker for cancer diagnosis and prognosis.
  • To explore the therapeutic potential of targeting MCM2 in cancer treatment and immunotherapy.

Main Methods:

  • Analysis of MCM2 expression levels in various cancer types.
  • Correlation of MCM2 expression with clinicopathological features and patient outcomes.
  • Assessment of the anti-tumor effects of MCM2 inhibition.
  • Investigation of DNA replication stress in MCM2-deficient cells and its impact on anti-tumor immunity.

Main Results:

  • MCM2 overexpression is frequently observed in multiple cancers.
  • MCM2 dysfunction correlates with tumor progression and poor patient prognosis.
  • Inhibition of MCM2 demonstrates anti-tumor effects.
  • MCM2 deficiency leads to DNA replication stress, potentially enhancing anti-tumor immunity.

Conclusions:

  • MCM2 is a critical regulator of DNA replication and a significant factor in tumorigenesis.
  • Altered MCM2 expression serves as a potential biomarker for cancer diagnosis, prognosis, and predicting chemotherapy response.
  • Targeting MCM2 presents a promising therapeutic strategy for cancer treatment, potentially improving the efficacy of tumor immunotherapy due to induced replication stress.

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