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Src homology phosphotyrosyl phosphatase-2 expression is an independent negative prognostic factor in human breast

Simone Muenst1, Ellen C Obermann, Feng Gao

  • 1Institute of Pathology, University Hospital Basel, Basel, Switzerland. muensts@uhbs.ch

Histopathology
|May 16, 2013
PubMed
Abstract

Insights

High Src homology phosphotyrosyl phosphatase-2 (SHP2) expression in breast cancer predicts poorer survival. This finding suggests SHP2 as a potential therapeutic target for improving patient outcomes in breast cancer treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Src homology phosphotyrosyl phosphatase-2 (SHP2) is crucial in growth factor receptor signaling.
  • SHP2 is implicated in breast cancer initiation, progression, and metastasis.
  • The prognostic significance of SHP2 in human breast cancer remains unevaluated.

Purpose of the Study:

  • To investigate the association between SHP2 expression and patient prognosis in breast cancer.
  • To determine if SHP2 is an independent prognostic factor for survival in breast cancer.

Main Methods:

  • Immunohistochemical analysis of SHP2 expression in 1401 breast cancer specimens.
  • Correlation of SHP2 expression with clinicopathological features (grade, lymph node status, stage).
  • Univariate and multivariate survival analyses to assess the impact of SHP2 on overall survival (OS).

Main Results:

  • SHP2 expression was detected in 46% of breast cancer cases.
  • SHP2 positivity correlated with higher tumor grade, lymph node involvement, and advanced tumor stage.
  • SHP2 expression was significantly associated with worse overall survival (OS) in univariate and multivariate analyses.
  • SHP2 served as an independent negative prognostic factor for OS, particularly in luminal A and luminal B HER2(-) subtypes.

Conclusions:

  • SHP2 is an independent predictor of survival in breast cancer.
  • The findings support SHP2 as a potential therapeutic target for breast cancer patients.
  • Further research into SHP2-targeted therapies may improve breast cancer treatment strategies.

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