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Updated: Aug 14, 2026

Orthotopic Transplantation of Breast Tumors as Preclinical Models for Breast Cancer
07:45

Orthotopic Transplantation of Breast Tumors as Preclinical Models for Breast Cancer

Published on: May 18, 2020

Genomic and proteomic analysis of mammary tumors arising in transgenic mice

Lu Xie1, Baogang J Xu, Agnieszka E Gorska

  • 1Department of Cancer Biology, Biostatistics Shared Resource, Vanderbilt-Ingram Cancer Center, Nashville, Tennessee 37232, USA.

Journal of Proteome Research
|December 13, 2005
PubMed

Insights

Transforming growth factor-beta (TGF-beta) signaling impacts tumor development. This study used gene profiling to find molecular differences in mammary tumors with and without TGF-beta signaling, advancing breast cancer research.

Area of Science:

  • Molecular biology
  • Cancer research
  • Signal transduction

Background:

  • Transforming growth factor-beta (TGF-beta) is a key signaling molecule with a significant role in tumor progression.
  • Engineered mouse models demonstrate the profound influence of TGF-beta signaling on cancer development.

Purpose of the Study:

  • To identify molecular differences in mammary carcinomas based on the presence or absence of TGF-beta signaling.
  • To explore the utility of combined profiling technologies for understanding breast cancer.

Main Methods:

  • cDNA microarray analysis to assess gene expression.
  • MALDI-TOF MS (Matrix-Assisted Laser Desorption/Ionization–Time of Flight Mass Spectrometry) for protein analysis.

Main Results:

  • Significant differences were observed in mammary carcinomas with and without TGF-beta signaling.
  • The study highlights the potential of integrating gene and protein profiling.

Conclusions:

  • Combining cDNA microarray and MALDI-TOF MS offers a powerful approach to elucidate molecular mechanisms in breast cancer.
  • Understanding these molecular differences can contribute to improved diagnostics and therapeutics for breast cancer.

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