Biomedicines (Aug 2022)

Depletion of <i>Mdig</i> Changes Proteomic Profiling in Triple Negative Breast Cancer Cells

  • Chitra Thakur,
  • Nicholas J. Carruthers,
  • Qian Zhang,
  • Liping Xu,
  • Yao Fu,
  • Zhuoyue Bi,
  • Yiran Qiu,
  • Wenxuan Zhang,
  • Priya Wadgaonkar,
  • Bandar Almutairy,
  • Chunna Guo,
  • Paul M. Stemmer,
  • Fei Chen

DOI
https://doi.org/10.3390/biomedicines10082021
Journal volume & issue
Vol. 10, no. 8
p. 2021

Abstract

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Triple-negative breast cancers are highly aggressive with an overall poor prognosis and limited therapeutic options. We had previously investigated the role of mdig, an oncogenic gene induced by some environmental risk factors, on the pathogenesis of breast cancer. However, a comprehensive analysis of the proteomic profile affected by mdig in triple-negative breast cancer has not been determined yet. Using label-free bottom-up quantitative proteomics, we compared wildtype control and mdig knockout MDA-MB-231 cells and identified the proteins and pathways that are significantly altered with mdig deletion. A total of 904 differentially expressed (p mdig gene and yielded substantial information on the key proteins, biological processes, and pathways modulated by mdig that contribute to breast cancer tumorigenicity and invasiveness.

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