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Related Concept Videos

Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

11.9K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
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  1. Home
  2. Research Domains
  3. Biomedical And Clinical Sciences
  4. Oncology And Carcinogenesis
  5. Predictive And Prognostic Markers
  6. Construction Of A Novel Mitochondrial Oxidative Stress-related Genes Prognostic System And Molecular Subtype Characterization For Breast Cancer.
  1. Home
  2. Research Domains
  3. Biomedical And Clinical Sciences
  4. Oncology And Carcinogenesis
  5. Predictive And Prognostic Markers
  6. Construction Of A Novel Mitochondrial Oxidative Stress-related Genes Prognostic System And Molecular Subtype Characterization For Breast Cancer.

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Author Spotlight: Transmitochondrial Cybrid Generation Using Cancer Cell Lines
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Construction of a novel mitochondrial oxidative stress-related genes prognostic system and molecular subtype characterization for breast cancer.

Ying Liu1, Yang Li1, Yanzheng Zhu2

  • 1Department of Breast Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China.

Discover Oncology
|November 8, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

A novel scoring system for breast cancer (BRCA) prognosis was developed using mitochondrial oxidative stress-related genes. This system predicts patient outcomes and aids in personalized treatment strategies for BRCA.

Keywords:
Breast cancerImmune infiltrationMitochondriaOxidative stress

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Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material
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Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material
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Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material

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Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Breast cancer (BRCA) is a leading cause of cancer mortality in women.
  • Mitochondrial oxidative stress plays a critical role in breast cancer development and progression.
  • Limited understanding exists regarding the specific impact of mitochondrial oxidative stress on BRCA prognosis.

Purpose of the Study:

  • To identify independent prognostic genes related to mitochondrial oxidative stress in BRCA.
  • To develop a reliable scoring system for assessing BRCA patient prognosis based on these genes.
  • To explore the correlation between mitochondrial oxidative stress and BRCA clinical outcomes.

Main Methods:

  • Univariate and multivariate Cox regression analyses were employed to identify prognostic genes.
Prognostic model
  • A scoring system was constructed using identified mitochondrial oxidative stress-related genes (MOSRGs).
  • Immune infiltration, somatic mutation, and in vitro experiments were conducted for validation.
  • Main Results:

    • Independent prognostic genes associated with mitochondrial oxidative stress were identified.
    • A robust MOS scoring system was developed for BRCA patients.
    • The MOS scoring system demonstrated predictive value for clinical outcomes and correlated with BRCA subtypes.
    • In vitro studies confirmed the expression of prognostic genes in breast cancer cells and tissues.

    Conclusions:

    • A novel prognostic scoring system for BRCA has been established.
    • This system offers valuable insights for improving prognosis assessment in BRCA patients.
    • The findings support the development of individualized treatment strategies for breast cancer.