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Volume-regulated anion channels conduct ATP in undifferentiated mammary cells and promote tumorigenesis in xenograft nude mouse.
Front Cell Dev Biol
January 2025
Mechanobiology Laboratory, Nagoya University Graduate School of Medicine, Nagoya, Japan.
The high interstitial ATP concentration in the cancer microenvironment is a major source of adenosine, which acts as a strong immune suppressor. However, the source of ATP release has not been elucidated. We measured ATP release during hypotonic stress using a real-time ATP luminescence imaging system in breast cell lines and in primary cultured mammary cells.
View Article and Find Full Text PDFThe GLP-1 Agonist Semaglutide Ameliorates Cognitive Regression in P301S Tauopathy Mice Model via Autophagy/ACE2/SIRT1/FOXO1-Mediated Microglia Polarization.
Eur J Pharmacol
January 2025
Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, 11562 Cairo, Egypt.
Tau hyper-phosphorylation has been recognized as an essential contributor to neurodegeneration in Alzheimer's disease (AD) and related tauopathies. In the last decade, tau hyper-phosphorylation has gained considerable concern in AD therapeutic development. Tauopathies are manifested with a broad spectrum of symptoms, from dementia to cognitive decline and motor impairments.
View Article and Find Full Text PDFMalnutrition exacerbating neuropsychiatric symptoms on the Alzheimer's continuum is relevant to the cAMP signaling pathway: Human and mouse studies.
Alzheimers Dement
January 2025
Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Introduction: Malnutrition correlates with neuropsychiatric symptoms (NPSs) in Alzheimer's disease (AD); however, the potential mechanism underlying this association remains unclear.
Methods: Baseline and longitudinal associations of nutritional status with NPSs were analyzed in 374 patients on the AD continuum and 61 healthy controls. Serum biomarkers, behavioral tests, cerebral neurotransmitters, and differentially gene expression were evaluated in standard and malnourished diet-fed transgenic APPswe/PSEN1dE9 (APP/PS1) mice.
Increased unedited Alu RNA patterns found in cortex extracellular vesicles in Alzheimer's disease resemble hippocampus vasculature Alu RNA editing patterns but not cortex Alu RNA editing patterns.
J Alzheimers Dis
January 2025
Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
Background: Endogenous Alu RNAs form double-stranded RNAs recognized by double-stranded RNA sensors and activate IRF and NF-kB transcriptional paths and innate immunity. Deamination of adenosines to inosines by the ADAR family of enzymes, a process termed A-to-I editing, disrupts double-stranded RNA structure and prevents innate immune activation. Innate immune activation is observed in Alzheimer's disease, the most common form of dementia.
View Article and Find Full Text PDFNocturnin promotes NADH and ATP production for juvenile hormone biosynthesis in adult insects.
Pest Manag Sci
January 2025
State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Life Sciences, Henan University, Kaifeng, China.
Background: Juvenile hormone (JH) is a key endocrine governing insect development, metamorphosis and reproduction. JH analogs have offered great potential for insect pest control. In adulthood, JH titer rapidly increases in the previtellogenic period and reaches a peak in the vitellogenic phase.
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