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Molecular Mechanisms of PALB2 Function and Its Role in Breast Cancer Management

Shijie Wu1,2, Jiaojiao Zhou1,2, Kun Zhang1,2

  • 1Department of Breast Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Frontiers in Oncology
|March 19, 2020
PubMed

Insights

Partner and localizer of BRCA2 (PALB2) is crucial for DNA repair and genome stability. This review details PALB2

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • Partner and localizer of BRCA2 (PALB2) is essential for homologous recombination (HR) DNA repair.
  • PALB2 acts as a tumor suppressor, maintaining genome integrity.

Purpose of the Study:

  • To review the biological functions and regulation of the PALB2 protein.
  • To explore the association between PALB2 pathogenic variants (PVs) and breast cancer.
  • To discuss implications for genetic counseling and precision medicine in breast cancer.

Main Methods:

  • Literature review of current research on PALB2.
  • Analysis of studies linking PALB2 PVs to breast cancer characteristics.

Main Results:

  • PALB2 plays a multifaceted role in DNA repair and tumor suppression.
  • PALB2 PVs are linked to increased breast cancer predisposition.
  • PALB2 PVs correlate with aggressive clinicopathological features and poorer prognosis.

Conclusions:

  • Understanding PALB2's function is critical for comprehending DNA repair mechanisms.
  • Identification of PALB2 PVs offers opportunities for improved breast cancer risk assessment and personalized treatment strategies.
Keywords:
PALB2breast cancerhomologous recombinationpathogenic variantsprecision medicine

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