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Identifying crosstalk of mTOR signaling pathway of lobular breast carcinomas

G Sun1, M H Shan, B L Ma

  • 1Department of Breast and Head-Neck Surgery, Cancer Hospital Affiliated to Xinjiang Medical University, Xinjiang Institute of Cancer Research, Urumqi, Xinjiang, China. mabinlin@gmail.com

European Review for Medical and Pharmacological Sciences
|October 30, 2012
PubMed
Abstract

Insights

This study identified novel crosstalk pathways linked to the mammalian target of rapamycin (mTOR) signaling pathway in breast cancer. Findings highlight the Notch, autophagy, and adipocytokine pathways as potential therapeutic targets for invasive lobular carcinoma.

Area of Science:

  • Oncology
  • Molecular Biology
  • Bioinformatics

Background:

  • Invasive lobular carcinoma (ILC) accounts for 5-15% of invasive breast cancer diagnoses.
  • Mammalian target of rapamycin (mTOR), a serine/threonine kinase, is a key downstream effector in PI3K/Akt signaling, crucial in breast cancer.
  • Targeting mTOR is a significant strategy in anti-cancer therapy development.

Purpose of the Study:

  • To investigate crosstalk pathways associated with the mTOR signaling pathway.
  • To identify novel molecular targets for breast cancer treatment.

Main Methods:

  • Utilized pathway data from published databases.
  • Employed bioinformatics methods for pathway analysis.
  • Defined and analyzed crosstalk pathways based on overlapping genes.

Main Results:

  • Identified significant crosstalk between mTOR and the Notch signaling pathway (hsa04330).
  • Revealed links between mTOR and Regulation of autophagy (hsa04140).
  • Demonstrated connections between mTOR and the Adipocytokine signaling pathway (hsa04920), all implicated in breast cancer progression.

Conclusions:

  • Key pathways crosstalking with mTOR signaling were identified.
  • The study provides insights into potential novel therapeutic strategies for breast cancer, particularly ILC.

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