آمیلوئید A1 سرم
آمیلوئید A1 سرم (انگلیسی: Serum amyloid A1) یک پروتئین است که در انسان توسط ژن «SAA1» کُدگذاری میشود.[۴][۵][۶]
این پروتئین یکی از پروتئینهای فاز حاد مهم در بدن انسان است که توسط سلولهای کبدی در پاسخ به آسیب سلولی-بافتی، عفونت یا بدخیمیها ساخته میشود.[۷] با ورود به خون، SAA1 بهصورت یک آپولیپوپروتئین مرتبط با لیپوپروتئین پُرچگالی (HDL) نمایان میشود.[۸]
پروتئین SAA1 یکی از پیشسازهای اصلی آمیلوئید A سرم (AA) است که عامل بروز بیماری آمیلوئیدوز التهابی است.[۹][۱۰] در جریان این بیماری تولید پروتئین SAA1 افزایش مییابد.[۱۱]
پروتئین SAA1 عملکرد موضعی سلول ۱۷ تی کمکی را در رودهها تشدید میکند.[۱۲]
علیرغم تمامی تلاشها و پژوهشهای انجامشده طی ۳۰ سال گذشته، عملکرد دقیق این پروتئین هنوز مشخص نشدهاست. با این حال، معلومشده که آمیلوئید A1 سرم یک نشانگر زیستی بالینی قابلاعتماد برای بیماریهای التهابی، بیماریهای متابولیک مزمن و مراحل پایانی بدخیمیهاست.[۱۳]
منابع
[ویرایش]- ↑ ۱٫۰ ۱٫۱ ۱٫۲ GRCm38: Ensembl release 89: ENSMUSG00000057465 - Ensembl, May 2017
- ↑ "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.
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- ↑ Tape C, Tan R, Nesheim M, Kisilevsky R (Sep 1988). "Direct evidence for circulating apoSAA as the precursor of tissue AA amyloid deposits". Scandinavian Journal of Immunology. 28 (3): 317–24. doi:10.1111/j.1365-3083.1988.tb01455.x. PMID 3194701.
- ↑ Tape C, Tan R, Nesheim M, Kisilevsky R (Sep 1988). "Direct evidence for circulating apoSAA as the precursor of tissue AA amyloid deposits". Scandinavian Journal of Immunology. 28 (3): 317–24. doi:10.1111/j.1365-3083.1988.tb01455.x. PMID 3194701.
- ↑ Sano T, Huang W, Hall JA, Yang Y, Chen A, Gavzy SJ, Lee JY, Ziel JW, Miraldi ER, Domingos AI, Bonneau R, Littman DR (Oct 2015). "An IL-23R/IL-22 Circuit Regulates Epithelial Serum Amyloid A to Promote Local Effector Th17 Responses". Cell. 163 (2): 381–93. doi:10.1016/j.cell.2015.08.061. PMC 4621768. PMID 26411290.
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برای مطالعهٔ بیشتر
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