Abstract Title:

[Artesunate attenuate chronic graft-versus-host disease by regulating Th17/Treg balance].

Abstract Source:

Zhonghua Xue Ye Xue Za Zhi. 2019 Jan 14 ;40(1):63-68. PMID: 30704231

Abstract Author(s):

X M Chen, J Y Weng, P L Lai, Y L Wang, X Huang, S X Geng, L Y Guo, T Huang, L J Zeng, X Du

Article Affiliation:

X M Chen


To investigate the effects of artesunate treatment on chronic graft-versus-host disease (cGVHD).Recipient BALB/c mice received 8× 10(6) bone marrow cells with 8×10(6) spleen cells from B10D2 mice. Artesunate solubilized in acetone was injected intraperitoneally every day at the dose of 1 mg/kg at Day 28 after BMT. The clinical scores, survival and histopathological damage were analyzed. The frequency of Th17 and Tregs in PB and spleens from the mice were evaluated by flow cytometry. In addition, CD4(+) T cells from the spleens of mice were cultured in vitro, then stimulated with artesunate, the frequency of Th17 and Tregs in these splenocytes were evaluated by flow cytometry.Artesunate administration diminished clinical and histopathological damage, and improved the survival of cGVHD mice[(46.57±7.83)%(55.71±6.99)%,(2)=5.457,=0.020]; Artesunate contributed to Tregs development [(4.45±0.04)%(8.40±0.23)%,=15.679,<0.001; (6.62±0.24)%(10.48±0.48)%,=6.587,=0.003] while decreased Th17 cells [(1.51±0.18)%(0.58±0.19)%,=7.233,<0.001; (1.48±0.38)%(0.71±0.18)%,=3.653,=0.011] expressions in both PB and spleens, and decreased the Th17/Treg ratio (0.34±0.050.09±0.03,=7.621,=0.002; 0.19±0.030.06±0.02,=6.993,=0.002). Moreover, artesunate suppressed the Th17 cells expressions [(0.82±0.37) %(3.39±1.22) %,=4.044,=0.007] and contributed to Tregs development [(34.63±1.29) %(14.28±1.69) %,=19.119,<0.001], and also decreased the Th17/Treg ratio (0.24±0.090.02±0.01,=4.780,=0.003).Artesunate suppressed the Th17 cells expressions and contributed to Tregs development, which provided new sights into the development of a novel drug for cGVHD, e.g., artemisinin.

Study Type : Animal Study, In Vitro Study

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