青天葵活性部位的體外抗腫瘤作用研究
(作者未知) 2010/5/25
青天葵活性部位的體外抗腫瘤作用研究
【摘要】 目的確定廣西特產(chǎn)藥材青天葵體外抗腫瘤作用的活性部位。方法青天葵部位提取物的制備主要采用溶劑法, 青天葵全草先用95%的乙醇提取,得到的提取物進(jìn)一步用石油醚、醋酸乙酯、正丁醇、甲醇依次提取,得到極性由小到大的4個(gè)提取部位;钚院Y選采用MTT法實(shí)驗(yàn),觀察青天葵提取物對7種腫瘤細(xì)胞的生長抑制作用。結(jié)果青天葵石油醚和醋酸乙酯部位具有一定的體外抗腫瘤作用。結(jié)論首次確定了青天葵的石油醚和醋酸乙酯部分是體外抗腫瘤作用的有效部位。
【關(guān)鍵詞】 青天葵 體外抗腫瘤作用 活性部位
Abstract:ObjectiveTo determine the active fraction with anticancer effect in vitro from Nervilia foadii(Hance) Schltr.MethodsThe samples were prepared by solvent extraction. The whole Nervilia foadii(Hance) Schltr. was extracted with 95% ethanol at first,and then the ethanolic extract was separated with petroleum ether, ethyl acetate, n-Butyl alcohol and methanol in turn to get four fractions from small to large in polarity. The MTT experiment was made for active screening. The inhibiting influences of extracts from Nervilia foadii(Hance) Schltr. on growth of seven kinds of human tumor cells were observed. ResultsPetroleum ether extract and ethyl acetate extract both had some anticancer effects in vitro. ConclusionIt is the first time that the petroleum ether extract and ethyl acetate extract of Nervilia foadii(Hance) Schltr. are proved to be the effective anticancer fractions in vitro.
Key words: Nervilia fordii(Hance) Schltr., Anticancer effect in vitro, Active fraction
青天葵為蘭科Orchidaceae植物毛唇芋蘭Nervilia
foadii(Hance) Schltr.的干燥全草,入藥始載于《嶺南采藥錄》,主要產(chǎn)于我國的廣西、廣東、海南,四川、云南,泰國也有分布,是廣西特產(chǎn)藥材[1~3],具有清肺止咳、健脾消積、鎮(zhèn)痛止痛、散淤消腫、清熱解毒之功效,主治肺癆、咳嗽咳血、中毒、跌打損傷、小兒疳積、精神病、口腔炎、急性咽喉炎等癥。近來還用含有青天葵的復(fù)方制劑治療鼻咽癌以緩解癥狀[4],但未發(fā)現(xiàn)國內(nèi)外對其抗腫瘤有效成分及藥理作用的研究。為此,筆者對青天葵的干燥全草進(jìn)行了藥效學(xué)實(shí)驗(yàn)研究,對青天葵的石油醚、氯仿、醋酸乙酯、甲醇4個(gè)不同部位采用體外抗腫瘤實(shí)驗(yàn)進(jìn)行初篩,為闡明青天葵的抗腫瘤作用并篩選出有效部位打下基礎(chǔ),F(xiàn)報(bào)道如下。
1 材料與儀器
1.1 受試樣品
藥材青天葵來源于南寧藥材站,經(jīng)廣西中醫(yī)學(xué)院劉壽養(yǎng)副教授鑒定為蘭科Orchidaceae植物毛唇芋蘭Nervilia foadii(Hance) Schltr.的干燥全草。對青天葵的干燥全草進(jìn)行提取分離得4個(gè)部位:石油醚提取物(A)、醋酸乙酯提取物(B)、正丁醇提取物(C)、乙醇提取物(D)。A,B,C和D均用含有DMSO的培養(yǎng)液溶解,均配成濃度為480 μg/ml的溶液,置于-20℃冰箱密閉避光保存。臨用前用不含血清和抗生素的RPMI1640(NG108-15用DMEM)液稀釋至所需濃度,DMSO終濃度在0.01%水平。
1.2 培養(yǎng)液
1.2.1 RPMI完全培養(yǎng)液含RPMI1640培養(yǎng)基(GIBCO)、3%谷氨酰胺、卡那霉素750 μg/m(未完,下一頁)
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