{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.cellular-senescence","code":"thing-q9075999","url":"https://ver.cy/models/thing/q9075999/","name":"cellular senescence","alternateNames":["T-cell senescence","stress-induced premature senescence","oncogene-induced cell senescence","telomere shortening"],"kind":"thing","status":"published","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.PRC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A stable state in which cells permanently stop dividing while remaining metabolically active, first described by Leonard Hayflick and Paul Moorhead in 1961 as the limited replicative lifespan of cultured human cells, triggered by telomere shortening, DNA damage, oncogene activation in oncogene-induced senescence, and stresses in stress-induced premature senescence, with forms such as T-cell senescence in the immune system; senescent cells secrete inflammatory factors, the senescence-associated secretory phenotype, and are studied for roles in ageing, cancer suppression and age-related disease, including experimental senolytic drugs.","purpose":"Let an agent explain cellular senescence, relay mechanisms, biological roles and research directions from cell biology and ageing research sources with evidence attributed, describe the forms and causes the registry aliases name, avoid overstating anti-ageing claims, and distinguish senescence from apoptosis, quiescence and organismal ageing.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Irreversible arrest","Secretory phenotype","Tumour suppression","Linked to ageing"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What cellular senescence is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is cellular senescence, and how does it differ from apoptosis, quiescence and organismal ageing?","kind":"definition"},{"text":"Is the question about biology, ageing research, cancer or an anti-ageing product claim?","kind":"boundary"}]}]},{"id":"forms","name":"Forms","description":"Named forms and causes.","findings":[{"id":"forms-finding","name":"Forms","description":"Forms.","questions":[{"text":"What are T-cell senescence, SIPS, oncogene-induced senescence and telomere shortening?","kind":"definition"},{"text":"Which entry fits the specific form?","kind":"action"}]}]}]},{"id":"biology","name":"Biology","description":"Mechanisms.","layers":[{"id":"pathways","name":"Pathways","description":"Pathways.","findings":[{"id":"pathways-finding","name":"Pathways","description":"Pathways.","questions":[{"text":"How do p53 and p16 pathways enforce senescence?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"sasp","name":"SASP","description":"Secretory phenotype.","findings":[{"id":"sasp-finding","name":"SASP","description":"SASP.","questions":[{"text":"What is the senescence-associated secretory phenotype, and what does it do?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"health","name":"Health","description":"Ageing and disease.","layers":[{"id":"cancer","name":"Cancer","description":"Cancer.","findings":[{"id":"cancer-finding","name":"Cancer","description":"Cancer.","questions":[{"text":"How does senescence suppress tumours, and how can it also promote them?","kind":"provenance"},{"text":"Which entry fits tumour suppressor gene?","kind":"action"}]}]},{"id":"senolytics","name":"Senolytics","description":"Senolytics.","findings":[{"id":"senolytics-finding","name":"Senolytics","description":"Senolytics.","questions":[{"text":"What is the evidence so far for senolytic drugs, with trial status checked against current sources?","kind":"provenance"},{"text":"Is the presentation free of overstated claims?","kind":"boundary"}]}]}]},{"id":"context","name":"Context","description":"History.","layers":[{"id":"hayflick","name":"Hayflick","description":"Hayflick limit.","findings":[{"id":"hayflick-finding","name":"Hayflick","description":"Hayflick.","questions":[{"text":"How did Hayflick overturn the idea that cultured cells are immortal?","kind":"provenance"},{"text":"Which entry fits Hayflick limit?","kind":"action"}]}]},{"id":"telomeres","name":"Telomeres","description":"Telomeres.","findings":[{"id":"telomeres-finding","name":"Telomeres","description":"Telomeres.","questions":[{"text":"How did telomere research explain replicative senescence?","kind":"provenance"},{"text":"Which entry fits telomerase?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain cellular senescence, its discovery by Hayflick and Moorhead and its roles in ageing and disease.","Report research results with their stage, such as cell, animal or human studies."],"mustNot":["Present anti-ageing or senolytic treatments as proven for people.","Treat different causes of senescence, such as telomere shortening, as the same thing.","Advise a person to take senolytic drugs or supplements."],"requiresHuman":["Any decision to use experimental anti-ageing treatment."]},"ethics":{"considerations":["Anti-ageing hype sells unproven products to hopeful people.","Research ethics apply to cell lines and the people they came from."],"affectedParties":["Consumers","Older people","Research participants"]},"owners":{"steward":"Nobody owns the process; it belongs to biology as shared knowledge.","roles":[],"masterSystems":[]},"relations":[{"target":"Q13416689","type":"parent","note":"registry parent class"},{"target":"cell metabolism","type":"related","note":"in registry terms"},{"target":"telomere shortening","type":"related","note":"among other triggers"},{"target":"apoptosis","type":"related"},{"target":"senolytic","type":"related","note":"experimentally"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.cellular-senescence","Wikidata: Q9075999 (https://www.wikidata.org/wiki/Q9075999)"]},"properties":{"applicability":"not-applicable","items":["Hayflick limit described: 1961 year - Hayflick and Moorhead","common marker: senescence-associated beta-galactosidase note","key pathways: p53-p21 and p16-Rb list"]},"recognition":{"applicability":"optional","items":["Permanent cell cycle arrest","T-cell senescence, stress-induced premature senescence, oncogene-induced senescence, telomere shortening","Apoptosis is cell death; quiescence is reversible arrest; organismal ageing is whole-body; telomere shortening is a cause","Not a visible object; senescent cells are often enlarged and flattened under a microscope."]},"capabilities":{"applicability":"required","items":["explain mechanisms","relay roles in ageing and cancer","describe named forms","distinguish related processes"]},"hazards":{"applicability":"required","items":["Overstating anti-ageing treatments","Treating causes such as telomere shortening as synonyms","Ignoring beneficial roles such as wound healing"]},"interfaces":{"applicability":"required","items":["Clinical trial regulation for senolytic therapies"]},"context":{"applicability":"required","items":["Not applicable; a cell biological process.","replicative senescence","oncogene-induced senescence","stress-induced premature senescence","therapy-induced senescence","immunosenescence including T-cell senescence"]}},"sources":[{"title":"Wikidata item Q9075999: cellular senescence","url":"https://www.wikidata.org/wiki/Q9075999","note":"identity and sense of the item"},{"title":"Wikipedia: Cellular senescence","url":"https://en.wikipedia.org/wiki/Cellular_senescence","note":"general description of the item"}],"openQuestions":["Should immunosenescence be a separate entry?","How should ageing research sources be linked?","The registry alias telomere shortening is a cause and should be recorded as a related process"],"resources":{"spec":"/models/things/publications/thing-q9075999/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q9075999/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T19:45:18Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:02+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties."},"score":1.0}}