請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/32783
標題: Cytopiloyne, a polyacetylenic glucoside, prevents type 1 diabetes in nonobese diabetic mice
作者: Chang, C.L.T.
張力天
Chang, S.L.
Lee, Y.M.
Chiang, Y.M.
Chuang, D.Y.
Kuo, H.K.
Yang, W.C.
關鍵字: receptor transgenic mice
mexican medicinal-plants
t-cells
nod mice
autoimmune-diseases
bidens-pilosa
butanol fraction
cyclosporine-a
pathogenesis
mellitus
期刊/報告no:: Journal of Immunology, Volume 178, Issue 11, Page(s) 6984-6993.
摘要: Some polyacetylenes from the plant Bidens pilosa have been reported to treat diabetes. In this study, we report that the cytopiloyne from B. pilosa, which is structurally different from the above-mentioned polyacetylenes and inhibits CD4(+) T cell proliferation, effectively prevents the development of diabetes in nonobese diabetic mice as evidenced by a normal level of blood glucose and insulin and normal pancreatic islet architecture. Cytopiloyne also suppresses the differentiation of type 1 Th cells but promotes that of type 2 Th cells, which is consistent with it enhancing GATA-3 transcription. Also, long-term application of cytopiloyne significantly decreases the level of CD4(+) T cells inside pancreatic lymph nodes and spleens but does not compromise total Ab responses mediated by T cells. Coculture assays imply that this decrease in CD4(+) T cells involves the Fas ligand/Fas pathway. Overall, our results suggest that cytopiloyne prevents type 1 diabetes mainly via T cell regulation.
URI: http://hdl.handle.net/11455/32783
ISSN: 0022-1767
顯示於類別:獸醫學系所

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