Results 191 to 200 of about 1,020,842 (327)

Senescent Microglia Mediate Neuroinflammation‐Induced Cognitive Dysfunction by Selective Elimination of Excitatory Synapses in the Hippocampal CA1

open access: yesAging Cell, EarlyView.
In the CA1, microglia are activated to be responsible for synaptic pruning. However, LPS induces a senescent phenotype in microglia, characterized by the elevated levels of p16, as well as the production of SASPs. These senescent microglia mediate the removal of excitatory synapses selectively, resulting in dendritic spine loss and LTP impairment ...
Kai Liu   +8 more
wiley   +1 more source

Tissue‐Specific Effects of Dietary Protein on Cellular Senescence Are Mediated by Branched‐Chain Amino Acids

open access: yesAging Cell, EarlyView.
Restriction of dietary BCAAs protects male mice from the metabolic consequences of both normal‐ and high‐protein diets. BCAA restriction also protects from hepatic cellular senescence in vivo and in vitro, especially in the context of mitochondrial stress. ABSTRACT Dietary protein is a key regulator of healthy aging in both mice and humans.
Mariah F. Calubag   +14 more
wiley   +1 more source

Alternative Polyadenylation Contributes to Fibroblast Senescence in Pulmonary Fibrosis

open access: yesAging Cell, EarlyView.
In aging or fibrotic fibroblasts, NUDT21 is downregulated, leading to alternative polyadenylation/3′ UTR shortening of STAT3 pathway genes, enhancing their protein expression and promoting STAT3 phosphorylation. Activated STAT3 signaling subsequently drives the expression and release of senescence‐associated secretory phenotype (SASP) factors, thereby ...
Jingjing Huang   +14 more
wiley   +1 more source

Single‐Cell Sequencing Reveals That CD4+ T Cells Eliminate Senescent Prostate Epithelium to Delay Progression of Benign Prostatic Hyperplasia

open access: yesAging Cell, EarlyView.
Senescent BPH epithelial cells secrete CXCL13 to recruit CD4+ T cells via CXCR5. Cytotoxic CD4+ T cells eliminate senescent cells through MHC‐II–dependent recognition. Tregs suppress, while B cells show minimal effect. This immune axis modulates senescent cell clearance and may influence BPH progression.
Zheng Li   +16 more
wiley   +1 more source

cTAGE5/MEA6 Regulates LBR Localization to Maintain Nuclear Envelope Integrity and Safeguard Against Aging

open access: yesAging Cell, EarlyView.
cTAGE5 regulates LBR trafficking between the ER and the nucleus membrane to maintain the integrity of both the ER and the nuclear envelope. cTAGE5 KO results in LBR retention in the ER, reduced stability, and subsequent disruption of nuclear envelope integrity. ABSTRACT cTAGE5/MEA6 plays a pivotal role in COPII complex assembly, ER‐to‐Golgi trafficking,
Yaqing Wang   +9 more
wiley   +1 more source

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