Serpine1
M. musculus
serine (or cysteine) peptidase inhibitor, clade E, member 1
What the model saw
Gene: Serpine1 Organism: Mus musculus Known functions: serine (or cysteine) peptidase inhibitor, clade E, member 1. plasminogen activator inhibitor 1. endopeptidase inhibitor activity. protease binding. protein binding. serine-type endopeptidase inhibitor activity. signaling receptor binding.
View unredacted entry
serine (or cysteine) peptidase inhibitor, clade E, member 1. plasminogen activator inhibitor 1. endopeptidase inhibitor activity. protease binding. protein binding. serine-type endopeptidase inhibitor activity. signaling receptor binding.
Solver output
Serpine1 encodes Plasminogen Activator Inhibitor-1 (PAI-1), the primary inhibitor of tissue-type and urokinase-type plasminogen activators (tPA and uPA). By blocking plasminogen activation, PAI-1 suppresses fibrinolysis and promotes a pro-thrombotic, pro-fibrotic extracellular environment. Elevated PAI-1 is a well-established driver of age-related pathologies including cardiovascular disease, metabolic syndrome, and tissue fibrosis. Critically, PAI-1 is a downstream effector of the senescence-associated secretory phenotype (SASP) and is itself upregulated by p53/PAI-1 signaling to enforce cellular senescence, creating a feed-forward loop that accelerates aging. Genetic deletion of Serpine1 in mice has been shown to extend healthspan and lifespan, while its overexpression accelerates aging phenotypes, directly implicating it as an anti-longevity factor. Its serine-type endopeptidase inhibitor and protease binding activities mechanistically underpin its role in blocking plasminogen activators and interacting with vitronectin/signaling receptors to propagate pro-aging intercellular signals.
GenAge curators classify each gene's normal function as promoting (Pro-Longevity) or opposing (Anti-Longevity) longevity, based on synthesis across studies. Loss-of-function effects can vary from this depending on the manipulation.
Advisor judgment
The model correctly identified Serpine1/PAI-1 as anti_longevity with high confidence (0.82). The mechanistic reasoning is excellent and accurate: PAI-1 inhibits fibrinolysis, promotes pro-thrombotic/pro-fibrotic states, is a SASP component, participates in p53-PAI-1 senescence signaling, and genetic deletion in mice extends lifespan. All key pathways cited are well-supported by the literature. The model demonstrates deep knowledge of PAI-1's role in aging biology.
Raw API responses
solver
{
"reasoning": "Serpine1 encodes Plasminogen Activator Inhibitor-1 (PAI-1), the primary inhibitor of tissue-type and urokinase-type plasminogen activators (tPA and uPA). By blocking plasminogen activation, PAI-1 suppresses fibrinolysis and promotes a pro-thrombotic, pro-fibrotic extracellular environment. Elevated PAI-1 is a well-established driver of age-related pathologies including cardiovascular disease, metabolic syndrome, and tissue fibrosis. Critically, PAI-1 is a downstream effector of the senescence-associated secretory phenotype (SASP) and is itself upregulated by p53/PAI-1 signaling to enforce cellular senescence, creating a feed-forward loop that accelerates aging. Genetic deletion of Serpine1 in mice has been shown to extend healthspan and lifespan, while its overexpression accelerates aging phenotypes, directly implicating it as an anti-longevity factor. Its serine-type endopeptidase inhibitor and protease binding activities mechanistically underpin its role in blocking plasminogen activators and interacting with vitronectin/signaling receptors to propagate pro-aging intercellular signals.",
"confidence": 0.82,
"key_pathways": [
"PAI-1/plasminogen activator fibrinolysis axis",
"p53-PAI-1 senescence enforcement pathway",
"SASP-driven pro-fibrotic signaling"
],
"mechanism_class": "chronic_inflammation",
"longevity_influence": "anti_longevity"
}advisor
{
"notes": "The model correctly identified Serpine1/PAI-1 as anti_longevity with high confidence (0.82). The mechanistic reasoning is excellent and accurate: PAI-1 inhibits fibrinolysis, promotes pro-thrombotic/pro-fibrotic states, is a SASP component, participates in p53-PAI-1 senescence signaling, and genetic deletion in mice extends lifespan. All key pathways cited are well-supported by the literature. The model demonstrates deep knowledge of PAI-1's role in aging biology.",
"failure_mode": "correct",
"answer_correct": true,
"mechanism_correct": true,
"reasoning_quality": 5,
"ground_truth_questionable": false
}