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Related Concept Videos

  • Biomedical And Clinical Sciences
  • Oncology And Carcinogenesis
  • Predictive And Prognostic Markers
  • Overexpression Of Human Copper/zinc Superoxide Dismutase (sod1) Suppresses Ischemia-reperfusion Injury And Subsequent Development Of Graft Coronary Artery Disease In Murine Cardiac Grafts.
  • Biomedical And Clinical Sciences
  • Oncology And Carcinogenesis
  • Predictive And Prognostic Markers
  • Overexpression Of Human Copper/zinc Superoxide Dismutase (sod1) Suppresses Ischemia-reperfusion Injury And Subsequent Development Of Graft Coronary Artery Disease In Murine Cardiac Grafts.

    • Related Experiment Videos

    Overexpression of human copper/zinc superoxide dismutase (SOD1) suppresses ischemia-reperfusion injury and subsequent development of graft coronary artery disease in murine cardiac grafts.

    Masashi Tanaka1, Golnaz K Mokhtari, Raya D Terry

    • 1Department of Cardiothoracic Surgery, Stanford University Medical Center, Stanford, Calif, USA. masashi@omiya.jichi.ac.jp

    Circulation
    |September 15, 2004

    View abstract on PubMed

    Summary
    This summary is machine-generated.

    Overexpressing SOD1 in donor hearts significantly reduced ischemia-reperfusion injury and graft coronary artery disease (GCAD) in mice. This protective effect was linked to decreased apoptosis and inflammation in transplanted organs.

    Related Experiment Videos

    Area of Science:

    • Cardiology
    • Immunology
    • Transplantation Biology

    Background:

    • Ischemia-reperfusion injury (IRI) is a major risk factor for graft coronary artery disease (GCAD).
    • Understanding mechanisms to mitigate IRI is crucial for improving transplant outcomes.

    Purpose of the Study:

    • To investigate the potential of superoxide dismutase 1 (SOD1) overexpression in donor hearts to reduce IRI.
    • To assess the long-term impact of SOD1 overexpression on preventing GCAD.

    Main Methods:

    • Heterotopic heart transplantation in mouse models using donor hearts with SOD1 overexpression or wild-type controls.
    • Assessment of biochemical markers of injury, apoptosis, inflammation, and graft function at early and late time points.

    Main Results:

    • SOD1 overexpression significantly reduced markers of oxidative stress, inflammation (TNF-alpha, MCP-1/CCL2), and apoptosis (caspase-3, caspase-9) post-IRI.
    • Transplanted hearts with SOD1 overexpression showed improved graft function and reduced vascular remodeling (luminal narrowing, intima/media ratio) at 56 days.
    • Reduced expression of adhesion molecules (ICAM-1, VCAM-1) was observed in SOD1-overexpressing grafts.

    Conclusions:

    • Overexpression of SOD1 effectively attenuates IRI by suppressing apoptosis and inflammatory responses.
    • SOD1-mediated protection during IRI mitigates the subsequent development of GCAD, offering a potential therapeutic strategy.