对映-贝壳杉烷型二萜Leukamenin E对人早幼粒白血病HL-60细胞分化的诱导作用
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篇名: | 对映-贝壳杉烷型二萜Leukamenin E对人早幼粒白血病HL-60细胞分化的诱导作用 |
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摘要: | 目的:研究对映-贝壳杉烷型二萜Leukamenin E对人早幼粒白血病HL-60细胞分化的诱导作用。方法:采用台盼蓝染色法、吉姆萨染色法、NBT还原力测定法、荧光颗粒吞噬法及流式细胞术分别检测0(空白对照)、0.3、0.6、0.9、1.2 μmol/L的Leukamenin E及1.2 μmol/L全反式维甲酸(ATRA)作用于HL-60细胞24、48、72、96 h后对细胞数目的影响,以及作用72 h后细胞核形态、NBT还原能力(以NBT阳性细胞率计)、细胞吞噬能力(以荧光探针P的荧光强度计)以及细胞表面抗原CD11b表达的改变情况。结果:与空白对照比较,0.3~1.2 μmol/L的Leukamenin E及1.2 μmol/L 的ATRA作用48、72、96 h后HL-60细胞数目减少,且作用72 h后带状核细胞和分叶状核细胞数目增加(P<0.01),细胞NBT阳性细胞率和细胞表面CD11b 表达水平增加(P<0.01),P荧光强度增强。结论:Leukamenin E可诱导HL-60向成熟粒细胞分化,与白血病分化治疗剂ATRA具有相似的分化诱导特点。 |
ABSTRACT: | OBJECTIVE: To study the induction effect of ent-kaurane diterpenoid Leukamenin E on the differentiation of human promyelocytic leukemia HL-60 cells. METHODS: Trypan blue staining, Giemsa’s staining, NBT reduction test, fluorescent particles phagocytosis test and flow cytometry were used to detect the number of HL-60 cells after treated with 0, 0.3, 0.6, 0.9 and 1.2 μmol/L Leukamenin E and 1.2 μmol/L all-trans retinoic acid (ATRA) for 24,48,72 and 96 h, and the cellular nucleus morphology, NBT-reducing ability (by NBT positive cell rate), phagocytic ability (by fluorescence intensity of fluorescence probe P) and the expression of antigen CD11b after treated for 72 h were observed. RESULTS: Compared with blank control, the number of HL-60 cells decreased after treated with 0.3-1.2 μmol/L Leukamenin E and 1.2 μmol/L ATRA for 48, 72 and 96 h; the number of band nucleus and segmented nuclei increased after treated for 72 h (P<0.01); the rate of positive NBT cells and the expression of CD11b increased (P<0.01); the fluorescence intensity of P strengthened. CONCLUSIONS: Leukamenin E could induce the differentiation of HL-60 cells to mature granulocyte, which is similar to the effects on HL-60 cells induced by leukemia differentiation therapeutic agent ATRA. |
期刊: | 2016年第27卷第13期 |
作者: | 丁兰,李佩蔚,孔花青,陈宗儒,刘国安 |
AUTHORS: | DING Lan,LI Peiwei,KONG Huaqing,CHEN Zongru,LIU Guo’an |
关键字: | 对映-贝壳杉烷型二萜;Leukamenin E;人早幼白血病HL-60细胞;分化 |
KEYWORDS: | Ent-kaurane diterpene; Leukamenin E; Human promyelocytic leukemia HL-60 cells; Differentiation |
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