IR@PKUHSC  > 北京大学公共卫生学院  > 毒理学系
学科主题公共卫生
Dihydroartemisinin Ameliorates Inflammatory Disease by Its Reciprocal Effects on Th and Regulatory T Cell Function via Modulating the Mammalian Target of Rapamycin Pathway
Zhao, Yan G.1,2,3; Wang, Yunqi1,2; Guo, Zengli1,2; Gu, Ai-di1,2; Dan, Han C.1,4; Baldwin, Albert S.1,4; Hao, Weidong3; Wan, Yisong Y.1,2
刊名JOURNAL OF IMMUNOLOGY
2012-11-01
DOI10.4049/jimmunol.1200919
189期:9页:4417-4425
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Immunology
研究领域[WOS]Immunology
关键词[WOS]AUTOIMMUNE ENCEPHALOMYELITIS ; AKT-MTOR ; ARTEMISININ ; LINEAGE ; DIFFERENTIATION ; SUPPRESSION ; MECHANISMS ; GENERATION ; T(H)17 ; GAMMA
英文摘要

Dihydroartemisinin (DHA) is an important derivative of the herb medicine Artemisia annua L., used in ancient China. DHA is currently used worldwide to treat malaria by killing malaria-causing parasites. In addition to this prominent effect, DHA is thought to regulate cellular functions, such as angiogenesis, tumor cell growth, and immunity. Nonetheless, how DHA affects T cell function remains poorly understood. We found that DHA potently suppressed Th cell differentiation in vitro. Unexpectedly, however, DHA greatly promoted regulatory T cell (Treg) generation in a manner dependent on the TGF-beta R: Smad signal. In addition, DHA treatment effectively reduced onset of experimental autoimmune encephalomyelitis (EAE) and ameliorated ongoing EAE in mice. Administration of DHA significantly decreased Th but increased Tregs in EAE-inflicted mice, without apparent global immune suppression. Moreover, DHA modulated the mammalian target of rapamycin (mTOR) pathway, because mTOR signal was attenuated in T cells upon DHA treatment. Importantly, enhanced Akt activity neutralized DHA-mediated effects on T cells in an mTOR-dependent fashion. This study therefore reveals a novel immune regulatory function of DHA in reciprocally regulating Th and Treg cell generation through the modulating mTOR pathway. It addresses how DHA regulates immune function and suggests a new type of drug for treating diseases in which mTOR activity is to be tempered. The Journal of Immunology, 2012, 189: 4417-4425.

语种英语
WOS记录号WOS:000310200600028
Citation statistics
Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/51441
Collection北京大学公共卫生学院_毒理学系
作者单位1.Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC 27599 USA
2.Univ N Carolina, Dept Microbiol & Immunol, Chapel Hill, NC 27599 USA
3.Peking Univ, Dept Toxicol, Sch Publ Hlth, Beijing 100191, Peoples R China
4.Univ N Carolina, Dept Biol, Chapel Hill, NC 27599 USA
Recommended Citation
GB/T 7714
Zhao, Yan G.,Wang, Yunqi,Guo, Zengli,et al. Dihydroartemisinin Ameliorates Inflammatory Disease by Its Reciprocal Effects on Th and Regulatory T Cell Function via Modulating the Mammalian Target of Rapamycin Pathway[J]. JOURNAL OF IMMUNOLOGY,2012,189(9):4417-4425.
APA Zhao, Yan G..,Wang, Yunqi.,Guo, Zengli.,Gu, Ai-di.,Dan, Han C..,...&Wan, Yisong Y..(2012).Dihydroartemisinin Ameliorates Inflammatory Disease by Its Reciprocal Effects on Th and Regulatory T Cell Function via Modulating the Mammalian Target of Rapamycin Pathway.JOURNAL OF IMMUNOLOGY,189(9),4417-4425.
MLA Zhao, Yan G.,et al."Dihydroartemisinin Ameliorates Inflammatory Disease by Its Reciprocal Effects on Th and Regulatory T Cell Function via Modulating the Mammalian Target of Rapamycin Pathway".JOURNAL OF IMMUNOLOGY 189.9(2012):4417-4425.
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