Metabolic Pathways Library
Every article, presentation, spotlight, and news item we've tagged to Metabolic Pathways.
Showing 121–144 of 148
How a Growth Factor and SIRT1 Might Combat Disc Degeneration
FGF21, a growth factor that declines with age, delays intervertebral disc degeneration by upregulating SIRT1 and restoring mitochondrial quality control through the PINK1-Parkin mitophagy pathway. This mechanism addresses a primary driver of age-related lower back pain by counteracting cellular senescence in disc tissue.
CagriSema and retatrutide signal the next GLP-1 arms race
Triple and dual agonist drugs like retatrutide and CagriSema target multiple metabolic pathways simultaneously, producing weight loss exceeding 20-30% in clinical trials. These medications represent a shift toward precision metabolic intervention, with implications for both obesity management and aging-related cellular stress.
Mitochondria Delivery Method Rescues Parkinson’s in Mice
Researchers encapsulated healthy mitochondria in red blood cell membranes to deliver them into diseased cells, achieving efficient uptake and functional restoration across multiple cellular models of mitochondrial dysfunction. This addresses a long-standing barrier in mitochondrial replacement therapy and demonstrates potential for treating mitochondrial diseases and age-related energy decline.
Pilot study of epigenetic aging and treatment response to semaglutide in the SLIM LIVER study
A pilot study tracking epigenetic aging markers in patients receiving semaglutide for metabolic liver disease found that GLP-1 receptor agonists may slow biological aging rates independent of weight loss alone. The finding suggests semaglutide's effects extend beyond glycemic control to influence aging-related cellular mechanisms, with implications for understanding how pharmacological interventions affect the aging process itself.
Peroxisomal Function Controls Metabolic Flexibility in Aging
Peroxisomal decline during aging impairs the mobilization of stored lipids, leading to metabolic rigidity and secondary mitochondrial dysfunction. Restoring peroxisomal function restores metabolic flexibility and resilience, positioning peroxisomal health as a causal driver of age-related metabolic decline rather than a consequence.
Silencing of the Metabolic Gene HKDC1 Is Associated With Aging and Neurodegeneration in Mice and Humans
HKDC1, a metabolic enzyme, declines with age due to chromatin remodeling that blocks its transcription factor regulation, and this decline correlates with cognitive impairment and neurodegeneration in both mice and humans. Loss of HKDC1 compromises mitochondrial integrity and triggers neuroinflammation, establishing a mechanistic link between metabolic gene silencing and age-related neurological decline.
FGF21‐Mediated Upregulation of SIRT1 Delays Intervertebral Disc Degeneration by Promoting PINK1/Parkin Dependent Mitophagy Through Deacetylation of FOXO3
FGF21 activates a cellular repair pathway in spinal disc cells by upregulating SIRT1, which deacetylates FOXO3 and triggers mitochondrial autophagy, thereby suppressing cell senescence and slowing intervertebral disc degeneration. This identifies a targetable molecular axis with direct relevance to preventing age-related spinal structural decline and associated disability.
AGGF1 Decline Drives Age-Related Hypertension Through Mitochondrial Dysfunction
AGGF1, an endothelial protein that declines with age, regulates blood pressure through a signaling pathway that controls mitochondrial function and nitric oxide production. Loss of AGGF1 accelerates vascular aging and elevates blood pressure in male mice, while restoring AGGF1 expression reverses these changes, identifying a potential intervention target for age-related hypertension.
Vitamin C Alleviates Aging in Cynomolgus Monkeys
Iron accumulation drives a coordinated aging process called ferro-aging through oxidative damage and lipid peroxidation; vitamin C reverses these markers in primate models. This identifies iron metabolism and lipid oxidation as actionable targets in cellular senescence.
LINC01021 Accelerates Cellular Senescence in Primates
Researchers identified LINC01021, a primate-specific long non-coding RNA that accumulates with age and actively promotes cellular senescence by suppressing RBMX, a regulator of the p53 tumor suppressor pathway. This discovery reveals a primate-specific mechanism driving aging that does not exist in rodent models, with direct implications for understanding human senescence and potential therapeutic targeting.
Cellular Reprogramming Rescues Memory-Encoding Neurons
Partial cellular reprogramming using three Yamanaka factors (OSK) successfully restored memory function in aged mice and Alzheimer's disease models by rejuvenating memory-encoding neurons while preserving their neuronal identity. This approach demonstrates that targeted reprogramming of engram cells can reverse age-related cognitive decline without causing dedifferentiation or memory loss.
Intestinal Exosomes Restore Age-Related Fat Loss via miRNA Signaling
Intestinal epithelial exosomes from young mice reverse age-related subcutaneous fat atrophy in older animals by delivering a microRNA that activates lipid storage in fat progenitor cells. This gut-to-fat signaling pathway suggests a direct mechanism by which intestinal function influences systemic metabolic health during aging.
Autophagy‐Independent Function of ATG‐18 Is Essential for Gonadal Longevity in Caenorhabditis elegans
ATG-18, a protein long associated with autophagy, extends lifespan through a mechanism independent of autophagy itself when the germline is removed. In the intestine, ATG-18 extends lifespan by interacting with PCK-2, an enzyme involved in glucose production, revealing a tissue-specific, non-autophagic pathway to longevity.
Muscle preservation emerges as critical GLP-1 treatment frontier
NorthStrive Biosciences has filed patent applications for two distinct muscle-preservation technologies—a peptide (EL-22) and an engineered microorganism platform (EL-32)—designed to mitigate lean mass loss during GLP-1 and multi-hormone weight-loss treatment. This represents a shift in obesity medicine from maximizing weight loss alone to preserving metabolic and structural integrity during pharmacological intervention.
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.
mPGES-2 Links Kidney Aging to Bone Loss
Podocyte-derived mPGES-2 regulates both renal aging and bone loss in aging, establishing a direct mechanistic link between kidney function decline and skeletal deterioration. This finding identifies a specific molecular pathway that coordinates the decline of two major systems involved in longevity and quality of life.
Metal Homeostasis Restores Insulin Sensitivity in Diabetic Model
Telomir-Zn, an investigational compound modulating intracellular metal homeostasis, restored insulin sensitivity in a diet-induced zebrafish diabetes model, with fasting glucose returning to near-control levels and HOMA-IR declining from 10-12 to approximately 3 within 14 days. The preclinical finding demonstrates dose-dependent metabolic restoration through iron-dependent pathway modulation, with potential relevance to both metabolic and oncologic disease.
Vitamin C Alleviates Aging in Cynomolgus Monkeys
Iron accumulation drives a coordinated aging process termed ferro-aging, characterized by oxidative damage and cellular senescence across tissues. Vitamin C administration reversed aging markers and restored functional capacity in aged cynomolgus monkeys, suggesting a tractable intervention point in iron-dependent aging pathways.
Higher tyrosine levels may trim years off life
A UK Biobank study of 272,500 participants links elevated blood tyrosine levels to reduced lifespan, with a stronger effect in men (approximately one year lost per standard deviation increase). Using Mendelian randomization to establish causality rather than mere association, the research suggests tyrosine acts as a causal factor in mortality risk, independent of phenylalanine.
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.
Muscle-Sparing Weight Loss: Beyond GLP-1 Appetite Suppression
MetaShape's MS 001 candidate demonstrates potential to address GLP-1 therapy limitations by preserving muscle mass, deepening fat loss, and increasing energy expenditure in preclinical models. This shifts obesity treatment focus from total weight loss toward selective fat reduction while maintaining metabolic capacity.
Cell Response Algorithm Accelerates Longevity Research
Researchers at Altos Labs developed PRiMeFlow, a machine learning algorithm that predicts how cells respond to genetic and molecular interventions by working directly within gene expression space rather than compressing data into lower dimensions. This advance enables more accurate in silico modeling of cellular behavior, reducing the need for costly and time-consuming experimental validation before testing therapeutic candidates.
Targeting protein misfolding in neurodegeneration
Protein misfolding drives over 100 diseases and accelerates aging-related decline. Origami Therapeutics is developing targeted protein degraders and conformation correctors that address root cause mechanisms rather than symptoms, with initial focus on neurodegenerative diseases including Huntington's, Alzheimer's, and Parkinson's.
AI-Designed TNIK Inhibitor Targets Aging in Pulmonary Fibrosis
Insilico Medicine's rentosertib, an AI-designed TNIK inhibitor discovered through aging-biology-informed target identification, has advanced to Phase III trials for idiopathic pulmonary fibrosis. The program demonstrates that computational drug discovery combined with geroscience principles can identify therapeutically relevant targets overlooked by conventional approaches.