مجموعهٔ تمایزی ۲۰ (انگلیسی: Cluster of Differentiation 20) یا «آنتیژن CD20 لنفوسیت بی» یک فسفوپروتئینگلیکوزیلهشده است که بر سطح لنفوسیتهای بی از فاز pro-B تا مراحلهٔ بلوغ آنان دیده میشود.[۵]
در انسان این پروتئین توسط ژن «MS4A1» کُد میشود.[۶][۷]
اخیراً بین لنفوسیتهای بی (که دارای CD20 هستند) و بروز دیابت و مقاومت به انسولین، رابطهای کشف شدهاست.[۸]
↑"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
↑"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
↑Hardy, Richard (2008). "Chapter 7: B Lymphocyte Development and Biology". In Paul, William (ed.). Fundamental Immunology (Book) (6th ed.). Philadelphia: Lippincott Williams & Wilkins. pp. 237–269. ISBN0-7817-6519-6.
Macardle PJ, Nicholson IC (2003). "CD20". Journal of Biological Regulators and Homeostatic Agents. 16 (2): 136–8. PMID12144126.
Tamayose K, Sato N, Ando J, Sugimoto K, Oshimi K (December 2002). "CD3-negative, CD20-positive T-cell prolymphocytic leukemia: case report and review of the literature". American Journal of Hematology. 71 (4): 331–5. doi:10.1002/ajh.10224. PMID12447967.
Loken MR, Shah VO, Dattilio KL, Civin CI (November 1987). "Flow cytometric analysis of human bone marrow. II. Normal B lymphocyte development". Blood. 70 (5): 1316–24. PMID3117132.
Shirakawa T, Li A, Dubowitz M, Dekker JW, Shaw AE, Faux JA, Ra C, Cookson WO, Hopkin JM (June 1994). "Association between atopy and variants of the beta subunit of the high-affinity immunoglobulin E receptor". Nature Genetics. 7 (2): 125–9. doi:10.1038/ng0694-125. PMID7920628.
Szepetowski P, Perucca-Lostanlen D, Gaudray P (June 1993). "Mapping genes according to their amplification status in tumor cells: contribution to the map of 11q13". Genomics. 16 (3): 745–50. doi:10.1006/geno.1993.1257. PMID8325649.
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