Hallmarks of Aging Library
Every article, presentation, spotlight, and news item we've tagged to Hallmarks of Aging.
Showing 145–168 of 401
Clonal hematopoiesis boosts response to immune checkpoint therapy
Clonal hematopoiesis—the age-related expansion of mutant blood cell populations—enhances response to immune checkpoint inhibitors in cancer patients. This unexpected finding reframes a hallmark of aging as potentially protective in the context of immunotherapy, with implications for how we interpret immune aging and treatment efficacy.
ULK1 Restores Cellular Cleanup in Alzheimer's Models
Elevated ULK1 expression enhances autophagy and mitophagy pathways, reducing amyloid and tau accumulation while delaying cognitive decline in Alzheimer's models. This positions cellular cleanup mechanisms as a direct target for disease modification rather than symptomatic management.
Muscle Circadian Decline Drives Age-Related Bone Loss
Muscle cells lose circadian clock function with age, disrupting a molecular pathway that normally suppresses bone-degrading inflammation. Time-restricted feeding restores this protective rhythm, reducing inflammatory signals and bone loss in aged mice—suggesting a dietary intervention that coordinates multiple organ systems without pharmacological intervention.
Multiomic single-cell perturbation screens reveal critical lncRNA regulators of senescence
A systematic screen of 32 aging-associated long non-coding RNAs identified HOTAIRM1 as a critical regulator of DNA repair pathways, with restoration of HOTAIRM1 in aged mouse lungs reducing fibrosis. This work establishes lncRNA regulation as a targetable mechanism in cellular senescence.
Inflammation’s statin moment edges closer
BioAge's NLRP3 inhibitor BGE-102 produced marked reductions in inflammatory biomarkers (hsCRP, IL-6, fibrinogen) in Phase 1 testing, positioning upstream inflammasome inhibition as a potential scalable approach to chronic inflammation management. This advances a field that has lacked convenient, long-term preventive options despite growing evidence that inflammation drives cardiovascular and age-related disease.
Aged Male Mice Remain Glucose Tolerant Despite Increased Energy Storage Efficiency Favoring Diet‐Induced Obesity
Aged male mice maintain glucose tolerance despite accumulating more fat on a high-fat diet than younger counterparts, a metabolic uncoupling driven by increased energy storage efficiency and reduced lipid turnover. This finding indicates that obesity and glucose dysregulation diverge with age, presenting distinct intervention targets for metabolic health in older populations.
A glycolytic metabolite puts the brakes on cGAS-driven aging
Phosphoenolpyruvate, a glycolytic metabolite, suppresses cGAS-driven inflammation through a direct molecular interaction. The age-related decline in PEP availability explains the transition from metabolic stability to chronic inflammation and neurodegeneration.
Scienta’s new AI model targets aging-linked inflammation
Scienta Lab's EVA, a multimodal AI model, accelerates drug discovery for inflammation-related diseases by integrating gene activity, tissue, and protein data to predict clinical outcomes before human trials. For longevity medicine, this tool addresses inflammaging—the chronic, low-grade inflammation driving age-related diseases—potentially compressing drug development timelines from decades to years.
It’s Springtime and the Rejuvenation Field Is Flourishing
The rejuvenation research field is advancing through improved diagnostic technology, clinical trial progress, and coordinated business-advocacy efforts. Non-invasive voice and gait biomarkers show promise for early detection of age-related diseases, particularly neurodegenerative conditions and infectious diseases, while the field strengthens its capacity to move discoveries into clinical application.
Sleep rhythms and dementia risk link emerges
Chronic circadian disruption triggers structural changes in microglia, shifting them toward an inflammatory, stress-primed state that impairs their ability to clear neural debris. This mechanism may represent a primary driver of brain aging and dementia risk decades before cognitive symptoms emerge, with emerging research exploring whether stem cell-derived extracellular vesicles can intercept this inflammatory cascade.
A hierarchy of causes of death in senescent C. elegans
Research in senescent C. elegans reveals a hierarchical cascade of organ system failures rather than simultaneous deterioration, with specific tissues failing in sequence as aging progresses. This finding clarifies the mechanistic order of senescent decline and suggests that interventions targeting early failures in this cascade may prevent downstream system collapse.
The glycolytic metabolite phosphoenolpyruvate restricts cGAS-driven inflammation to promote healthy aging
Phosphoenolpyruvate, a glycolytic metabolite, suppresses cGAS-STING-driven inflammation and improves cognitive function in Alzheimer's disease models while correlating with healthy aging markers in humans. This identifies a metabolic checkpoint that regulates innate immune signaling during aging.
Immune Aging Clock Identifies COVID-19 Acceleration Effect
Immune repertoire sequencing reveals systematic remodeling of T and B cell populations with age, with a critical inflection point around 60 years characterized by reduced clonal diversity and expanded hyperspecific clones. COVID-19 infection accelerates these aging signatures, suggesting the virus triggers biological immune senescence comparable to years of natural aging.
FAM162A Is a Key Regulator of Mitochondrial Structure, Dynamics, and Bioenergetics, Driving Cellular Protection and Longevity
FAM162A, a mitochondrial cristae protein, regulates mitochondrial structure and energy production through interaction with OPA1, enhancing cellular stress resistance and extending lifespan in model organisms. This identifies a previously unrecognized mechanism linking mitochondrial dynamics to organismal longevity.
Cell Type‐Specific Expression of p16, p21, and p53 Reveals Age‐Dependent Glial Senescence in the AppNL‐G‐F Mouse Model of Alzheimer's Disease
Microglial and astrocytic cells in an Alzheimer's disease mouse model exhibit progressive senescence linked to amyloid pathology, while neurons remain unaffected. This cell-type-specific senescence signature identifies glial cells as primary targets for senescence-directed therapeutic intervention in Alzheimer's disease.
Young Microbes Rejuvenate Intestinal Function in Mice
Transferring microbiota from young mice to aged mice restored Wnt signaling in intestinal crypts and improved the regenerative capacity of intestinal stem cells. This demonstrates that age-related decline in intestinal function can be partially reversed through microbial transfer, with direct implications for understanding how microbiota composition influences tissue regeneration during aging.
Multifunctionality of TIM-3: from immunological aging to pathological progression
TIM-3, an immune checkpoint protein, drives age-related immune dysfunction and contributes to neurodegeneration and brain tumors through promotion of immunosuppressive myeloid cells. Blocking TIM-3 represents a potential therapeutic approach to restore immune competence in central nervous system disease.
Stroke in persistent chronic kidney disease condition alters innate-immunity to escalate mitochondrial dysfunction and aging
Stroke in the context of chronic kidney disease triggers immune dysregulation that accelerates mitochondrial dysfunction and aging processes. This cascade reveals how organ system failure in one area can compromise cellular energy production and immunity simultaneously, with significant implications for longevity in populations with renal compromise.
Aging Impairs Lung Immune Regulation in Severe COVID
Severe COVID-19 in older adults involves a specific immune imbalance: excessive lung neutrophils paired with impaired activation of monocytes that normally express PD-L1, a regulatory marker. This tissue-specific dysregulation, amplified by aging, distinguishes critical from non-critical disease and explains age-related vulnerability to severe respiratory infection.
Human cGAS Drives LINE‐1 Transcriptional Activation to Trigger MAVS‐Dependent Cellular Senescence
Human cGAS activates LINE-1 retrotransposon transcription through upregulation of CTCF and RUNX3, triggering cellular senescence via MAVS-dependent RNA sensing. This human-specific pathway reveals a mechanism linking genomic surveillance to accelerated cellular aging, with direct implications for understanding senescence in aging and age-related disease.
Gut Fungi Network Disruption Drives Arterial Stiffness
Disruption of the gut fungal community, particularly loss of balanced interaction networks centered on Apiotrichum and related genera, correlates with increased arterial stiffness through metabolite-mediated effects on vascular tone regulators. This connection between mycobiome dysbiosis and vascular aging identifies a previously undercharacterized mechanism linking intestinal fungal ecology to cardiovascular function.
Connecting fragmented aging research through the European Federation for Aging Research
The European Federation for Aging Research addresses fragmentation in gerontology research by establishing coordinated frameworks and data sharing across European institutions. Unified research infrastructure accelerates discovery in aging mechanisms and extends translational pathways to clinical intervention.
CFTR Protein Blocks Heart Cell Aging Through Calcium Control
CFTR, a protein typically studied for its ion channel function, operates through a secondary mechanism to prevent cardiomyocyte senescence by reducing mitochondrial oxidative stress. The USP45 enzyme stabilizes CFTR through deubiquitination, which enhances calcium regulation and protects heart cells from age-related dysfunction implicated in atrial fibrillation and cardiovascular disease.
Primate RNA Accelerates Aging Through P53 Activation
A primate-specific regulatory RNA (LINC01021) accelerates cellular aging by destabilizing a protein that normally restrains the P53 pathway, establishing a molecular mechanism unique to primates. This discovery identifies an evolutionarily recent layer of genetic control that directly influences aging rate and frailty phenotypes.