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Nrf2 appears to be a critical regulator of diabetes in rodents. However, the underlying mechanisms as well as the clinical relevance of the Nrf2 signaling in human diabetes remain to be fully understood. Herein, we report that islet expression of Nrf2 is upregulated at an earlier stage of diabetes in both human and mice. Activation of Nrf2 suppresses oxidative stress and oxidative stress-induced β-cell apoptosis while enhancing autophagic clearance in isolated rat islets. Additionally, oxidative stress per se activated autophagy in β-cells. Thus, these results reveal that Nrf2 drives a novel antioxidant independent autophagic clearance for β-cell protection in the setting of diabetes.
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http://dx.doi.org/10.1016/j.febslet.2014.04.046 | DOI Listing |
Phytomedicine
September 2025
Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart
Background: Impaired autophagic flux is an essential contributor to doxorubicin (DOX)-induced cardiotoxicity (DIC). TFEB is recognized as a key regulator of DOX-induced autolysosome accumulation; however, the mechanisms by which DOX suppresses TFEB expression remain unclear. 20-Deoxyingenol (20-DOI) is a small-molecule compound whose potential protective effects against DIC has not yet been elucidated.
View Article and Find Full Text PDFAutophagy Rep
September 2025
Department of Cell Biology, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil.
Autophagy is an evolutionarily conserved cellular process that is prominent during bacterial infections. In this review article, we discuss how direct pathogen clearance via xenophagy and regulation of inflammatory products represent dual functions of autophagy that coordinate an effective antimicrobial response. We detail the molecular mechanisms of xenophagy, including signals that indicate the presence of an intracellular pathogen and autophagy receptor-mediated cargo targeting, while highlighting pathogen counterstrategies, such as bacterial effector proteins that inhibit autophagy initiation or exploit autophagic membranes for replication.
View Article and Find Full Text PDFAdv Sci (Weinh)
September 2025
Second Division of Department of Oncology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, China.
Ferroptosis, characterized by iron-dependent lipid peroxidation, is a form of oxidative cell death increasingly recognized for its role in cancer therapy. The susceptibility of cancer cells to ferroptosis varies, highlighting the need to elucidate its underlying metabolic mechanisms. This study identifies a novel pathway in which the E3 ubiquitin ligase, praja ring finger ubiquitin ligase 1 (PJA1), mediates the proteasomal degradation of glyoxalase I (GLO1) exclusively in ferroptosis-sensitive cancer cells.
View Article and Find Full Text PDFEBioMedicine
September 2025
Department of Inflammation and Ageing, School of Infection, Inflammation and Immunology, University of Birmingham, Birmingham, UK; MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK; NIHR Birmingham Biomedical Research Centre, University Hospita
Background: Rheumatoid arthritis is an age-related disease displaying features of an aged immune system. This study aims to determine premature presence of immune ageing in the early stages of RA development, including in patients with clinically suspected arthralgia and undifferentiated arthritis.
Methods: We recruited 224 participants: 69 healthy controls (mean age 57.
Neurochem Res
September 2025
Department of Psychiatry, Shenzhen University General Hospital, Shenzhen University, Shenzhen, 518055, Guangdong, China.
Depression is a significant global health concern that extends beyond mere neurotransmitter imbalances, as the significance of autophagy in cellular recycling is increasingly recognized as pivotal in its pathogenesis and therapeutic intervention. This review thoroughly integrates the insights on how various antidepressants, such as SSRIs, SNRIs, and TCAs, confer therapeutic efficacy through modulation of autophagy pathways. We present evidence indicating that these pharmacological agents can augment autophagic flux, facilitate the clearance of neurotoxic protein aggregates, mitigate neuroinflammation, and enhance mitochondrial functionality, all of which represent critical elements of depressive pathology.
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