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A Novel Dual-Function Redox Modulator Relieves Oxidative Stress and Anti-Angiogenic Response in Placental Villus Explant Exposed to Hypoxia—Relevance for Preeclampsia Therapy

Biology, ISSN: 2079-7737, Vol: 12, Issue: 9
2023
  • 2
    Citations
  • 0
    Usage
  • 5
    Captures
  • 1
    Mentions
  • 17
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    2
  • Captures
    5
  • Mentions
    1
    • News Mentions
      1
      • News
        1
  • Social Media
    17
    • Shares, Likes & Comments
      17
      • Facebook
        17

Most Recent News

Beth Israel Deaconess Medical Center Researchers Release New Study Findings on Biology (A Novel Dual-Function Redox Modulator Relieves Oxidative Stress and Anti-Angiogenic Response in Placental Villus Explant Exposed to Hypoxia-Relevance for ...)

2023 OCT 09 (NewsRx) -- By a News Reporter-Staff News Editor at Angiogenesis Daily -- Investigators publish new report on biology. According to news reporting

Article Description

Background: Preeclampsia (PE) is a severe, life-threatening complication during pregnancy (~5–7%), and no causative treatment is available. Early aberrant spiral artery remodeling is associated with placental stress and the release of oxygen radicals and other reactive oxygen species (ROS) in the placenta. This precedes the production of anti-angiogenic factors, which ultimately leads to endothelial and trophoblast damage and the key features of PE. We tested whether a novel dual-function redox modulator—AKT-1005—can effectively reduce placental oxidative stress and alleviate PE symptoms in vitro. Method: Isolated human villous explants were exposed to hypoxia and assessed to determine whether improving cell-redox function with AKT-1005 diminished ROS production, mitochondrial stress, production of the transcription factor HIF1A, and downstream anti-angiogenic responses (i.e., sFLT1, sEng production). MitoTEMPO was used as a reference antioxidant. Results: In our villous explant assays, pretreatment with AKT-1005 reduced mitochondrial-derived ROS production, reduced HIF-1A, sFLT1, and sEng protein expression, while increasing VEGF in hypoxia-exposed villous trophoblast cells, with better efficiency than MitoTEMPO. In addition, AKT-1005 improved mitochondrial electron chain enzyme activity in the stressed explant culture. Conclusions: The redox modulator AKT-1005 has the potential to intervene with oxidative stress and can be efficacious for PE therapy. Future studies are underway to assess the in vivo efficacy of HMP.

Bibliographic Details

Pintye, Diana; Sziva, Réka E; Mastyugin, Maxim; Young, Brett C; Jacas, Sonako; Török, Marianna; Salahuddin, Saira; Jagtap, Prakash; Southan, Garry J; Zsengellér, Zsuzsanna K

MDPI AG

Biochemistry, Genetics and Molecular Biology; Immunology and Microbiology; Agricultural and Biological Sciences

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