Activity of mitochondrial ATP-dependent potassium channel in rats with high genetically determined resistance to hypoxia was higher than in sensitive animals. Adaptation of low resistant rats to hypoxia was accompanied by activation of the channel, facilitation of potassium recycling in mitochondria, and a decrease in the rate of H2O2 formation. Our results indicate that mitochondrial ATP-dependent potassium channel plays an important role in the delayed mechanisms of animal's adaptation to hypoxia.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10517-011-1251-x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Imaging phenotype reveals that disulfirams induce protein insolubility in the mitochondrial matrix.
Sci Rep
December 2024
Center for Drug Discovery, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, 422-8526, Shizuoka, Japan.
The cell painting assay is useful for understanding cellular phenotypic changes and drug effects. To identify other aspects of well-known chemicals, we screened 258 compounds with the cell painting assay and focused on a mitochondrial punctate phenotype seen with disulfiram. To elucidate the reason for this punctate phenotype, we looked for clues by examining staining steps and gene knockdown as well as examining protein solubility and comparing cell lines.
View Article and Find Full Text PDFSelf-Adaptive Nanocarriers Overcome Multiple Physiological Barriers to Boosting Chemotherapy of Orthotopic Pancreatic Cancer.
ACS Nano
December 2024
School of Biomedical Sciences and Engineering, Guangzhou International Campus, South China University of Technology, Guangzhou 511442, P. R. China.
Chemotherapy is the primary treatment option for pancreatic cancer, although nanocarrier-based drug delivery systems often struggle with multiple physiological barriers, limiting their therapeutic efficacy. Here, we developed a pH/reactive oxygen species (ROS) dual-sensitive self-adaptive nanocarrier (DAT) encapsulating camptothecin (CPT), an analog of the pancreatic chemotherapeutic drug irinotecan (CPT-11), to enhance chemotherapy outcomes in orthotopic pancreatic cancer by addressing multiple physiological barriers. The nanocarrier features a peripherally positively charged arginine (Arg) residue on DAT and is masked with an acid-labile 2,3-dimethylmaleic anhydride (DA) to improve circulation time.
View Article and Find Full Text PDFHSP60 controls mitochondrial ATP generation for optimal virus-specific IL-21-producing CD4 and cytotoxic CD8 memory T cell responses.
Commun Biol
December 2024
Institut national de la recherche scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie, 531 boulevard des Prairies, H7V 1M7, Laval, QC, Canada.
We have shown that virus-specific CD4 and CD8 memory T cells (TM) induce autophagy after T cell receptor (TCR) engagement to provide free glutamine and fatty acids, including in people living with HIV-1 (PLWH). These nutrients fuel mitochondrial ATP generation through glutaminolysis and fatty acid oxidation (FAO) pathways, to fulfill the bioenergetic demands for optimal IL-21 and cytotoxic molecule production in CD4 and CD8 cells, respectively. Here, we expand our knowledge on how the metabolic events that occur in the mitochondria of virus-specific TM down-stream of the autophagy are regulated.
View Article and Find Full Text PDFPhotosynthetic directed endosymbiosis to investigate the role of bioenergetics in chloroplast function and evolution.
Nat Commun
December 2024
Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S Mathews Avenue, Urbana, IL, US.
Cyanobacterial photosynthesis (to produce ATP and NADPH) might have played a pivotal role in the endosymbiotic evolution to chloroplast. However, rather than meeting the ATP requirements of the host cell, the modern-day land plant chloroplasts are suggested to utilize photosynthesized ATP predominantly for carbon assimilation. This is further highlighted by the fact that the plastidic ADP/ATP carrier translocases from land plants preferentially import ATP.
View Article and Find Full Text PDFRlip76 in ageing and Alzheimer's disease: Focus on oxidative stress and mitochondrial mechanisms.
Ageing Res Rev
January 2025
Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Nutritional Sciences Department, College of Human Sciences, Texas Tech University, Lubbock, TX 79409, United States; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA 5. Department of Public Health, Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Speech, Language, and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA. Electronic address:
Article Synopsis
- * The protein is crucial for various physiological processes, including oxidative stress response and mitochondrial function, and its interaction with Alzheimer's disease proteins suggests a link to neurological health issues like oxidative stress and cognitive decline.
- * Research involving Rlip in animal models of Alzheimer's disease reveals that altering its levels can lead to significant mitochondrial and cognitive impairments, indicating its potential as a therapeutic target in Alzheimer's progression and treatment.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!