Results 71 to 80 of about 149 (147)

BRD4/MAP2K7/PGF Signaling Axis Promotes Senescence and Extracellular Matrix Metabolism of Nucleus Pulposus Cells in Intervertebral Disk Degeneration

open access: yesAging Cell, EarlyView.
This study identifies BRD4 as a key regulator in intervertebral disk degeneration (IDD), linking its upregulation to NP cell senescence and disrupted ECM metabolism through the BRD4/MAP2K7/PGF signaling cascade, offering a potential therapeutic target for IDD treatment.
Guangzhi Zhang   +6 more
wiley   +1 more source

Compressive Forces Induce Epigenetic Activation of Aged Human Dermal Fibroblasts Through ERK Signaling Pathway

open access: yesAging Cell, EarlyView.
Direct activation and rejuvenation of aged fibroblasts through the application of mechanical forces in a 3D spheroid culture model. The ERK signaling pathway was revealed as a key underlying mechanism. ABSTRACT Age‐related changes in human dermal fibroblasts (HDFs) contribute to impaired wound healing and skin aging.
Hui Liu   +4 more
wiley   +1 more source

Age‐Dependent Regulation of Hippocampal Inflammation by the Mitochondrial Translocator Protein in Mice

open access: yesAging Cell, EarlyView.
The role of mitochondrial translocator protein (TSPO) in hippocampal inflammation is age‐dependent, with TSPO deletion drastically exacerbating inflammation in aged mice, while dampening it in young mice. This TSPO–aging interaction was linked to NF‐kβ and interferon regulatory transcriptional networks. TSPO deletion exacerbated age‐dependent depletion
Kei Onn Lai   +7 more
wiley   +1 more source

Cellular Senescence Is a Central Driver of Cognitive Disparities in Aging

open access: yesAging Cell, EarlyView.
The molecular underpinnings of divergent cognitive trajectories in aging remain unresolved. Using high‐resolution behavioral testing to cognitively stratify aged male mice into ‘intact’ and ‘impaired’ subgroups, we show that reactive gliosis and cellular senescence are key determinants of disparities in cognitive function with age.
Matthew P. Baier   +9 more
wiley   +1 more source

A Xanthine Derivative With Novel Heat Shock Protein 90‐Alpha Inhibitory and Senolytic Properties

open access: yesAging Cell, EarlyView.
This study aimed to find safe senolytic drugs that selectively eliminate senescent cells. Focusing on HSP90 inhibitors, we employed a virtual screening to identify novel, safer compounds (A). K5, a xanthinic candidate, effectively eliminated senescent cells in various cellular models (B), extended lifespan in flies, and reduced aging signs in mice (C).
Sandra Atlante   +24 more
wiley   +1 more source

Mechanistic Insights Into 5′‐tiRNA‐His‐GTG Mediated Activation of the JNK Pathway in Skin Photoaging

open access: yesAging Cell, EarlyView.
5′‐tiRNA‐His‐GTG expression level is upregulated in the photoaging cell model. 5′‐tiRNA‐His‐GTG negatively regulates the expression of NUP98, thereby activating the JNK signaling pathway to regulate cell senescence. ABSTRACT UV exposure leads to skin damage, thus inducing skin aging.
Lihao Liu   +10 more
wiley   +1 more source

Pyrroloquinoline Quinone Reprograms the Single‐Cell Landscape of Immune Aging in Hematopoietic Immune System

open access: yesAging Cell, EarlyView.
This study demonstrates that aging induces oxidative stress and inflammation in the hematopoietic immune system, resulting in immune homeostasis dysfunction, including alterations in B cells and hematopoietic stem cells, senescent cells (SnCs) accumulation, and senescence‐associated secretory phenotypes (SASPs) production. Notably, the study highlights
Xiuxing Liu   +11 more
wiley   +1 more source

Senescent Macrophages Promote Age‐Related Revascularization Impairment by Increasing Antiangiogenic VEGF‐A165B Expression

open access: yesAging Cell, EarlyView.
The underlying mechanisms of age‐related revascularization impairment are not clear. Our research firstly identified that macrophages were more senescent in the ischemic skeletal muscle of old mice and senescent macrophages could inhibit revascularization.
Minghong Chen   +7 more
wiley   +1 more source

Identifying PDAP1 as a Biological Target on Human Longevity: Integration of Mendelian Randomization, Cohort, and Cell Experiments Validation Study

open access: yesAging Cell, EarlyView.
Integration of multi‐omics analyses reveals PDAP1 as one of the key regulators of longevity and aging. Mendelian randomization, colocalization, prospective studies, and in vitro experiments highlight PDAP1's effects on mortality, lifespan, and cellular senescence.
Tianzhichao Hou   +18 more
wiley   +1 more source

Identification of Senomorphic miRNAs in Embryonic Progenitor and Adult Stem Cell‐Derived Extracellular Vesicles

open access: yesAging Cell, EarlyView.
A senomorphic miRNA cocktail (E5), consisting of miR‐181a‐5p, miR‐92a‐3p, miR‐21‐5p, and miR‐186‐5p, was identified from a pool of miRNAs enriched in extracellular vesicles (EVs) derived from multiple functional human stem cell types. E5 reduces senescence and SASP markers both in cell culture and in aged mice.
Tianpeng Zhang   +11 more
wiley   +1 more source

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