A screen of 800 natural compounds identified a phytochemical that activates autophagy and restores cell-cycle activity in models of cellular exhaustion.
Single-nucleus sequencing reveals disrupted signaling between satellite cells and fibro-adipogenic progenitors during muscle regrowth in older females.
bioRxiv : the preprint server for biology · Skiles CM et al.
In cultured fibroblasts and mice, apolipoprotein D triggers SUN1 accumulation, reinforcing a signaling cycle that alters gene expression and cellular polarity.
bioRxiv : the preprint server for biology · Chen M et al.
Fibroblasts from individuals at risk for rheumatoid arthritis exhibit impaired adipogenic differentiation and downregulated DNA repair and cell cycle pathways.
Researchers found that senescent epithelial cells secrete TGF-beta1 to reprogram fibroblasts into a matrix-remodeling state, which senolytic treatment can blunt.
The senolytic combination improved liver fibrosis without disease worsening in nearly half of treated participants while lowering cellular senescence markers.
Treating cells and an in vivo fibrosis model with a calcium chelator delayed senescence markers, reduced collagen buildup, and dampened inflammatory secretions.
Biochimica et biophysica acta. General subjects · Xu J et al.
Combining pyroptosis-inducing Pd3Sn nanostructures with the senolytic piperlongumine targets treatment-induced senescent cells and reduces metastatic tumor burden in animal models.
Advanced science (Weinheim, Baden-Wurttemberg, Germany) · Chen Z et al.
AnimalsPhotochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology·
The formulation co-delivers rapamycin and doxorubicin across the mucus barrier to inhibit mTOR and suppress tumor growth without evident systemic toxicity.
Monitored by serum transaminase levels, low doses of the drug alleviated age-related pathologies without causing the hepatotoxicity seen at higher doses.
Researchers identified a p53-p21-Cyclin D2 axis that governs senescent macrophages in mice and human liver cirrhosis and can be cleared with senolytics.
Long-lived African turquoise killifish show ventricular enlargement, fibrosis, and reduced myocardial density with age rather than typical cardiomyocyte hypertrophy.
Oral treatment restored bone density and mechanical strength while suppressing inflammatory markers and rebalancing intestinal bacteria in a disuse model.
Exposure to environmental arsenic caused heart dysfunction via the p53 and p21 pathway, which quercetin treatment reversed in cultured rat cardiomyoblasts.
Toxicology and applied pharmacology · Wang H et al.
Silencing the upregulated gene PLXDC2 via brain-penetrating nanoparticles suppressed cGAS-STING signaling, reduced iron accumulation, and protected dopaminergic neurons.
Advanced science (Weinheim, Baden-Wurttemberg, Germany) · Lu H et al.
Disrupted purine metabolism downstream of TDP43 dysfunction correlates with disease progression and drives cellular senescence in sporadic amyotrophic lateral sclerosis.
International journal of molecular sciences · Hall B et al.