Hyoung-Jwa Choi, SoHee Loh, Jin-Yeon Park, Min Kyung Kim, Young-Sun Kang
언어
영어(ENG)
URL
https://www.earticle.net/Article/A294774
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원문정보
초록
영어
Introduction High-dose intravenous immunoglobulin is a widely used therapeutic preparation. It is administered at high doses (1-2 grams per kilogram) for the suppression of autoantibody-triggered inflammation in a variety of clinical settings1. Immunoglobulin is a glycoprotein, composed of two identical heavy chains and two light chains, which in turn are composed of variable and constant domains. A minor population of IgG is glycosylated at Asn297 in the Fc domain, with glycans terminating in a-2,6 sialic acids (sFc)2-4. Recently, it has been reported that C-type lectins such as SIGN-R1 and human DC-SIGN recognize sFc of immunogloublin and mediate the suppression of autoantibody-mediated inflammation3. But the intracellular signaling mechanism of IVIG and its physiological meaning are not determined until now. Here, we identified that the binding of SIGN-R1/human DC-SIGN to IVIG rapidly generate ROS, leading to sequentially phosphorylate Protein X, P38 and NFkB. In particular, the phosphorylation of P38 and NFkB was dependent on the phosphorylation of Protein X. Also, it was verified that their binding induced anti-inflammatory cytokines such as IL-10 and IL-4 in vitro or in vivo. Currently, it is still in examination for the role of the SIGN-R1/human DC-SIGN-mediated signaling mechanism in the anti-inflammatory effects of IVIG. Although the further works are required, current results is important for unraveling a novel intracellular signaling mechanism of IVIG for its anti-inflammatory effects, which give an insight to develop a new therapy or plant-derived glycomimetic drugs to cure various inflammatory diseases or autoimmune disease.
저자
Hyoung-Jwa Choi [ Department of Biomedical Science & Technology(DBST), Konkuk University ]
SoHee Loh [ Department of Biomedical Science & Technology(DBST), Konkuk University ]
Jin-Yeon Park [ Department of Biomedical Science & Technology(DBST), Konkuk University ]
Min Kyung Kim [ Department of Biomedical Science & Technology(DBST), Konkuk University ]
Young-Sun Kang [ Department of Biomedical Science & Technology(DBST), Konkuk University, College of veterinary medicine, konkuk Unoversity, Hwayang-dong, seoul 143-701, Korea ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.