苯并噻唑衍生物BD960抗T細(xì)胞增殖的機(jī)制研究
[Abstract]:Objective to identify the immunosuppressive activity of benzothiazole derivative BD960 by high throughput screening. The mechanism of BD960 inhibiting T cell proliferation was discussed in this paper. Methods T cells were purified from human peripheral blood by immunomagnetic beads and activated by Anti-CD3/CD28m Abs or alloantigen. The effects of BD960 on the proliferation of activated T cells, the cytotoxicity of resting T cells, the expression of CD25 and the cell cycle were detected by flow cytometry. Enzyme linked immunosorbent assay (Elisa) was used to determine the effect of BD960 on the secretion of cytokines such as IL-2,IL-4,IL-6,IL-10,IL-17A and IFN- 緯 by activated T cells. Results BD960 inhibited the proliferation of T cells stimulated by Anti-CD3/CD28 m Abs or alloantigen, IC50 was (2.3 鹵0.3) 渭 mol/L and (2.5 鹵0.3) 渭 mol/L, respectively. The concentration of 100 渭 mol/L did not affect the survival of resting T cells and PBMC. The CD25 ratio of Anti-CD3/CD28 m Abs stimulated T cells for 72 h was 69.7% and BD960 did not inhibit the expression of CD25, by activated T cells at (0.625 渭 mol/L) 渭 mol/L. 0. 1 渭 mol/L FK506 could inhibit the expression of CD25 as low as 9. 4%. When T cells were activated for 96 h, 58.5%.BD960 could block the cell cycle in G0/G1 phase. The ratio of G0/G1 increased with increasing concentration. BD960 at (0.625 渭 mol/L) 渭 mol/L inhibited the release of IFN- 緯, IL-6 and IL-17 from activated T cells in a dose-dependent manner, but did not affect IL-2,IL-4 and IL-10.. Conclusion BD960 inhibits T cell proliferation at the late stage of cell activation and inhibits the secretion of proinflammatory cytokines such as IL-6,IL-17A and IFN- 緯. The inhibitory effect is different from that of FK506.BD960 in the development of novel immunosuppressants.
【作者單位】: 成都醫(yī)學(xué)院檢驗(yàn)醫(yī)學(xué)院;成都醫(yī)學(xué)院臨床醫(yī)學(xué)院;成都醫(yī)學(xué)院科研實(shí)驗(yàn)中心;
【基金】:國家自然科學(xué)基金(81273530;81302786;81402944) 四川省高?蒲袆(chuàng)新團(tuán)隊(duì)(13TD0028) 四川省教育廳科研項(xiàng)目(15ZB0233;15ZB0235)
【分類號(hào)】:R96
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