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Longevity steps on the cGAS

2 weeks 6 days ago
Science, Volume 390, Issue 6769, Page 126-127, October 2025.
John C. Martinez, Andrei Seluanov, and Vera Gorbunova

In Other Journals

2 weeks 6 days ago
Science, Volume 390, Issue 6769, Page 142-143, October 2025.
Corinne Simonti, and Jesse Smith, Sacha Vignieri, Ekeoma Uzogara, Mattia Maroso, Madeleine Seale, Ian S. Osborne, Jelena Stajic, and Jack Huang

AMPKα2 signals amino acid insufficiency to inhibit protein synthesis

2 weeks 6 days ago
The functional difference between the two catalytic subunits, α1 and α2, of AMP-activated protein kinase (AMPK) complexes remains elusive. Herein, we report that AMPKα2 specifically transduces amino acid insufficiency signals to protein synthesis. Low amino acid levels, high protein levels, and reduced phosphorylation of AMPKα threonine 172 (p-T172) are observed in blood samples in patients with Alzheimer's disease (AD) from a cohort of 1,000,000 Chinese individuals. Loss of α2, but not α1,...
Yunzi Mao

Extracellular vesicle-based biosensors for Alzheimer's disease: A new frontier in precision diagnostics

2 weeks 6 days ago
Alzheimer's disease (AD), the most prevalent neurodegenerative disorder, remains a diagnostic challenge due to its asymptomatic early stages and the lack of reliable, non-invasive biomarkers. Extracellular vesicles (EVs), including exosomes and microvesicles, are nano-sized membrane-bound particles released by cells into biological fluids and have emerged as promising carriers of disease-specific biomarkers. These vesicles reflect the physiological and pathological state of their parental cells,...
JinJin Pei