免疫磁珠分選的問(wèn)題
關(guān)鍵詞: 來(lái)源: 互聯(lián)網(wǎng)
問(wèn):
現(xiàn)用免疫磁珠(美天妮)分選cd4+和cd8+T淋巴細(xì)胞,效果不是太理想。單個(gè)核細(xì)胞2×106,分離出cd4+只有1×105個(gè),buffer等試劑都沒(méi)有問(wèn)題。不知道還有什么地方?jīng)]有注意到,希望各位戰(zhàn)友指點(diǎn)?
答:
呵呵,我也用美天妮分離CD14+單核細(xì)胞,結(jié)果還不錯(cuò)。
分出的細(xì)胞占單個(gè)核細(xì)胞五分之一。
我是根據(jù)說(shuō)明書(shū)進(jìn)行操作的,覺(jué)得以下幾方面比較重要:
(1) 細(xì)胞計(jì)數(shù)要準(zhǔn)確,不能超過(guò)上樣量。
(2) 預(yù)冷磁珠分離液。
(3) 磁珠分離緩沖液不能有氣泡
(4) 不能讓分離柱干掉
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