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gDNA Enrichment by a Transposase-based Technology for NGS Analysis of the Whole Sequence of BRCA1, BRCA2, and 9 Genes Involved in DNA Damage Repair
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Current perspectives on CHEK2 mutations in breast cancer

Panagiotis Apostolou1, Ioannis Papasotiriou1

  • 1Department of Molecular Medicine, Research Genetic Cancer Centre S.A. (R.G.C.C. S.A.), Florina, Greece.

Breast Cancer (Dove Medical Press)
|May 30, 2017
PubMed

Insights

Checkpoint kinase 2 (CHEK2) mutations impact DNA repair and cell cycle control. This review examines CHEK2's role in breast cancer, questioning the significance of common mutations as risk factors.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Checkpoint kinase 2 (CHEK2) is a key serine/threonine kinase activated by DNA damage.
  • CHEK2 plays a crucial role in DNA repair, cell cycle arrest, and apoptosis.
  • Loss of CHEK2 function is linked to various cancers, particularly breast cancer.

Purpose of the Study:

  • To review recent advances in CHEK2 mutation research.
  • To focus on the role of CHEK2 mutations in breast cancer.
  • To evaluate the significance of identified CHEK2 variants as risk factors.

Main Methods:

  • Literature review of recent experimental data on CHEK2 mutations.
  • Analysis of studies focusing on CHEK2*1100delC and I157T variants.
  • Examination of mutation frequencies in breast cancer patient populations.

Main Results:

  • CHEK2 mutations affect its kinase function, influencing DNA damage response pathways.
  • Commonly studied CHEK2 variants (CHEK2*1100delC, I157T) are found in breast cancer patients.
  • The frequency of these variants raises questions about their definitive role as breast cancer risk factors.

Conclusions:

  • CHEK2 is a critical player in the cellular response to DNA damage.
  • Further research is needed to clarify the precise contribution of specific CHEK2 mutations to breast cancer risk.
  • Understanding CHEK2 mutation impact is vital for advancing breast cancer research and potential therapeutic strategies.
Keywords:
CHEK2breast cancer

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