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Aryl Hydrocarbon Receptor Establishes a Delicate Balance between the Level of the Trace Amine Tryptamine and Monoamine Oxidase Activity in the Brain and Periphery in Health and Conditions such as Neurodegenerative, Neurodevelopmental, and Psychiatric Disorders.
Curr Neuropharmacol
January 2025
Department of Stem Cell Bioengineering, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawinskiego 5 Str, 02-106 Warsaw, Poland.
The purpose of this review was to analyse the literature regarding the correlation between the level of tryptamine, aryl hydrocarbon receptor (AHR) signalling pathway activation, and monoamine oxidase (MAO)-A and MAO-B activity in health and conditions such as neurodegenerative, neurodevelopmental, and psychiatric disorders. Tryptamine is generated through the decarboxylation of tryptophan by aromatic amino acid decarboxylase (AADC) in the central nervous system (CNS), peripheral nervous system (PNS), endocrine system, and gut bacteria. Organ-specific metabolism of tryptamine, which is mediated by different MAO isoforms, causes this trace amine to have different pharmacokinetics between the brain and periphery.
View Article and Find Full Text PDFZFAND6 promotes TRAF2-dependent mitophagy to restrain cGAS-STING signaling.
iScience
January 2025
Department of Microbiology and Immunology, Penn State College of Medicine, Hershey, PA 17033, USA.
ZFAND6 is a zinc finger protein that interacts with TNF receptor-associated factor 2 (TRAF2) and polyubiquitin chains and has been linked to tumor necrosis factor (TNF) signaling. Here, we report a previously undescribed function of ZFAND6 in maintaining mitochondrial homeostasis by promoting mitophagy. Deletion of ZFAND6 in bone marrow-derived macrophages (BMDMs) upregulates reactive oxygen species (ROS) and the accumulation of damaged mitochondria due to impaired mitophagy.
View Article and Find Full Text PDFTRIF-TAK1 signaling suppresses caspase-8/3-mediated GSDMD/E activation and pyroptosis in influenza A virus-infected airway epithelial cells.
iScience
January 2025
College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, P.R. China.
Pyroptosis plays an important role in attracting innate immune cells to eliminate infected niches. Our study focuses on how influenza A virus (IAV) infection triggers pyroptosis in respiratory epithelial cells. Here, we report that IAV infection induces pyroptosis in a human and murine airway epithelial cell line.
View Article and Find Full Text PDFYip1 interacting factor homolog B mediates the unconventional secretion of ORF8 during SARS-CoV-2 infection.
iScience
January 2025
School of Life Sciences, Chongqing University, Chongqing 401331, China.
Severe cases of COVID-19 are associated with immune responses that lead to a surge in inflammatory molecules, resulting in multi-organ failure and death. This significant increase in inflammatory factors is triggered by viral proteins. Open reading frame 8 (ORF8) has received particular attention as a unique accessory protein of SARS-CoV-2.
View Article and Find Full Text PDFMultifunctional nanoparticles confers both multiple inflammatory mediators scavenging and macrophage polarization for sepsis therapy.
Mater Today Bio
February 2025
Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107, China.
Sepsis is a serious and life-threatening condition, which can lead to organ failure and death clinically. Abnormally increased cell-free DNA (cfDNA) and inflammatory cytokines are involved in the development and progression of sepsis. Thus, cfDNA clearance and down-regulation of inflammatory factors are essential for the effective treatment of sepsis.
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