Downregulation of DNAJC12 Expression Predicts Worse Survival for ER-Positive Breast Cancer Patients

  • 0Laboratory of Molecular Genetics, Centro de Investigação Translacional em Oncologia-CTO, Instituto do Câncer do Estado de São Paulo (ICESP), Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil.

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Summary

This summary is machine-generated.

DNAJC12 (DnaJ heat shock protein family (Hsp40) member C12) expression is a potential biomarker for breast cancer (BC). Low DNAJC12 mRNA and protein levels indicate a worse prognosis and predict treatment response in BC patients.

Area Of Science

  • Molecular Biology
  • Oncology
  • Biomarker Discovery

Background

  • DNAJC12 (DnaJ heat shock protein family (Hsp40) member C12) is a molecular chaperone involved in protein folding and proteostasis.
  • Its utility as a biomarker is established for limited cancer types.
  • The study investigates DNAJC12's potential in breast cancer (BC).

Purpose Of The Study

  • To evaluate DNAJC12 mRNA and protein expression as prognostic and predictive biomarkers for breast cancer (BC).
  • To correlate DNAJC12 expression with clinicopathological features and treatment response in BC.

Main Methods

  • In silico analysis of publicly available data.
  • Immunohistochemistry (IHC) analysis of DNAJC12 protein expression in 292 primary BC samples.
  • Correlation of DNAJC12 expression with clinicopathological characteristics, survival outcomes, and treatment responsiveness.

Main Results

  • DNAJC12 transcripts were differentially expressed based on ER, PR, HER2 status, and molecular subtype.
  • Low DNAJC12 mRNA expression correlated with worse overall survival, disease-free survival, and treatment response.
  • Low DNAJC12 protein expression was associated with poorer prognosis across all BC subtypes and Luminal BC.
  • DNAJC12 protein levels differed significantly with tumor size and lymph node involvement.

Conclusions

  • DNAJC12 shows potential as a prognostic biomarker in breast cancer.
  • DNAJC12 expression may serve as a predictive biomarker for treatment response in BC.
  • Further investigation into DNAJC12's role in BC is warranted.

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