{"id":650,"slug":"why-is-fat-tissue-used-as-a-source-of-stem-cells","question":"Why is fat tissue used as a source of stem cells?","intent":"informational","language":"en","url":"https://worldwiki.io/q/why-is-fat-tissue-used-as-a-source-of-stem-cells","entity":{"slug":"adipose-tissue","name":"Adipose Tissue","url":"https://worldwiki.io/entity/adipose-tissue"},"answer":{"short_answer":"Fat is plentiful and easy to collect by liposuction. A single procedure can produce from 100 ml to more than 3 litres of lipoaspirate. Breaking down this tissue releases the stromal vascular fraction (SVF), a mix of cells in which stem cells make up only about 2–10%. In the United States, the FDA lists fat-derived SVF among regenerative products marketed without approval, and it has received reports of serious harms linked to unapproved products.","detailed_answer":"<p>SVF is separated from fat either with enzymes such as collagenase or with mechanical methods. The enzyme step is one reason US regulators treat SVF as more than a minimally manipulated product <span class=\"ref\">[9]</span>.</p>","format":"paragraph","confidence":75,"verified_at":"2026-09-18 06:21:20","updated_at":"2026-09-18 15:21:20"},"sources":[{"id":116,"title":"Comparative anatomy and metabolic profiles of brown and white adipose tissue in humans","url":"https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2026.1821542/full","publisher":"Frontiers in Endocrinology","type":"journal","accessed_at":"2026-09-19 18:01:36"},{"id":117,"title":"Plasticity of Adipose Tissues: Interconversion among White, Brown, and Beige Fat and Its Role in Energy Homeostasis","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11048349/","publisher":"Biomolecules (MDPI), via PubMed Central","type":"journal","accessed_at":"2026-09-19 18:01:36"},{"id":118,"title":"Adipose Tissue (Body Fat): Anatomy & Function","url":"https://my.clevelandclinic.org/health/body/24052-adipose-tissue-body-fat","publisher":"Cleveland Clinic","type":"organization","accessed_at":"2026-09-18 18:00:51"},{"id":119,"title":"Visceral Fat: What It Is & How It Affects You","url":"https://my.clevelandclinic.org/health/diseases/24147-visceral-fat","publisher":"Cleveland Clinic","type":"organization","accessed_at":"2026-09-18 18:00:51"},{"id":120,"title":"Brown adipose tissue: what have we learned since its recent identification in human adults","url":"http://www.scielo.br/j/abem/a/NF7L3d7NZbPxQXwtXnbB6Jn/?lang=en","publisher":"Arquivos Brasileiros de Endocrinologia & Metabologia","type":"journal","accessed_at":"2026-09-19 18:01:38"},{"id":121,"title":"Leptin 30 years – A chat with Jeffrey M. Friedman","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11967189/","publisher":"Archives of Endocrinology and Metabolism, via PubMed Central","type":"journal","accessed_at":"2026-09-19 18:01:39"},{"id":122,"title":"Lipodystrophies - StatPearls","url":"https://www.ncbi.nlm.nih.gov/books/NBK459180/","publisher":"NCBI Bookshelf, U.S. National Library of Medicine","type":"journal","accessed_at":"2026-09-19 18:01:40"},{"id":123,"title":"Obesity and overweight (fact sheet)","url":"https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight","publisher":"World Health Organization","type":"government","accessed_at":"2026-09-19 18:01:41"},{"id":124,"title":"A Simple and Effective Mechanical Method for Adipose-Derived Stromal Vascular Fraction Isolation","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC11055620/","publisher":"Cureus, via PubMed Central","type":"journal","accessed_at":"2026-09-19 18:01:41"},{"id":96,"title":"Important Patient and Consumer Information About Regenerative Medicine Therapies","url":"https://www.fda.gov/vaccines-blood-biologics/consumers-biologics/important-patient-and-consumer-information-about-regenerative-medicine-therapies","publisher":"U.S. Food and Drug Administration","type":"government","accessed_at":"2026-09-18 18:00:38"}],"published_at":"2026-09-18 06:21:20"}