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    Oxidative Stress in Drug-Induced Liver Injury (DILI): From Mechanisms to Biomarkers for Use in Clinical Practice

    • Autor
      Villanueva-Paz, Marina; Morán, Laura; Lopez-Alcantara, Nuria; Freixo, Cristiana; Andrade-Bellido, Raul JesusAutoridad Universidad de Málaga; [et al.]
    • Fecha
      2021-03-05
    • Editorial/Editor
      MDPI
    • Palabras clave
      Estrés oxidativo; Marcadores bioquímicos
    • Resumen
      Idiosyncratic drug-induced liver injury (DILI) is a type of hepatic injury caused by an uncommon drug adverse reaction that can develop to conditions spanning from asymptomatic liver laboratoryabnormalitiestoacuteliverfailure(ALF)anddeath.Thecellularandmolecularmecha- nisms involved in DILI are poorly understood. Hepatocyte damage can be caused by the metabolic activation of chemically active intermediate metabolites that covalently bind to macromolecules (e.g., proteins, DNA), forming protein adducts—neoantigens—that lead to the generation of oxidative stress, mitochondrial dysfunction, and endoplasmic reticulum (ER) stress, which can eventually lead to cell death. In parallel, damage-associated molecular patterns (DAMPs) stimulate the immune response, whereby inflammasomes play a pivotal role, and neoantigen presentation on specific human leukocyte antigen (HLA) molecules trigger the adaptive immune response. A wide array of antioxidant mechanisms exists to counterbalance the effect of oxidants, including glutathione (GSH), superoxide dismutase (SOD), catalase, and glutathione peroxidase (GPX), which are pivotal in detoxification. These get compromised during DILI, triggering an imbalance between oxidants and antioxidants defense systems, generating oxidative stress. As a result of exacerbated oxidative stress, several danger signals, including mitochondrial damage, cell death, and inflammatory markers, and microRNAs (miRNAs) related to extracellular vesicles (EVs) have already been reported as mechanis- tic biomarkers. Here, the status quo and the future directions in DILI are thoroughly discussed, with a special focus on the role of oxidative stress and the development of new biomarkers.
    • URI
      https://hdl.handle.net/10630/23506
    • DOI
      https://dx.doi.org/10.3390/antiox10030390
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    2021. Oxidative Stress in Drug-Induced Liver Injury (DILI) From Mechanisms to Biomarkers for Use in Clinical Practice.pdf (1.004Mb)
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    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
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    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
    REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA