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產(chǎn)品名稱：K562/DDP人白血病耐藥株、K562/DDP人白血病耐藥株、K562/DDP人白血病耐藥株、K562/DDP人白血病耐藥株；

細(xì)胞系特征

細(xì)胞株名稱：K562/DDP 人白血病耐藥株

種屬：智人,女性

組織來(lái)源：骨髓；慢性骨髓性白血病(CML)

生長(zhǎng)特性：懸浮生長(zhǎng)

形態(tài)特征：淋巴母細(xì)胞

微生物及支原體檢測(cè)：陰性

細(xì)胞背景：K-562由Lozzio從一位臨終的53歲女性慢性骨髓性白血病患者的胸水中建立。細(xì)胞被歸入高度未分化的粒性白細(xì)胞類。 Anderson等對(duì)其表面膜性質(zhì)的研究表明，K-562是一株人類紅白血病細(xì)胞。 K-562細(xì)胞株在自然殺傷分析中廣泛作為高敏感的體外受體。 See Pross等將它用于NK細(xì)胞的體外詳細(xì)檢測(cè)，包括NK細(xì)胞活性的數(shù)學(xué)量化。 K-562母細(xì)胞是多能性，造血惡性細(xì)胞，它能自發(fā)分化成可識(shí)別的紅血球祖細(xì)胞、粒性白細(xì)胞、單核細(xì)胞等。它是EBNA陰性的。

安全性：所有腫瘤和病毒轉(zhuǎn)染的細(xì)胞均視為有潛在的生物危害性，必須在二級(jí)生物安全臺(tái)內(nèi)操作，并請(qǐng)注意防護(hù)，所有廢液及接觸過(guò)此細(xì)胞的器皿需高壓滅菌后方能丟棄。

培養(yǎng)條件：

培養(yǎng)基：90%RPMI-1640+10%胎牛血清+1%P/S+1000ng/ml

血清我們推薦用:

GIBCOFBS-10099-141或HYCLONEFBS-SH30084.03。

培養(yǎng)條件：37.0C carbon dioxide(CO2),5%

傳代方法：

收到細(xì)胞后，在倒置鏡下(是在4X物鏡)觀察整個(gè)細(xì)胞生長(zhǎng)情況。

（一）如果細(xì)胞未長(zhǎng)滿，用75%酒精噴灑整個(gè)瓶消毒后放到超菌臺(tái)內(nèi)，嚴(yán)格無(wú)菌操作，低速離心，打開細(xì)胞培養(yǎng)瓶，吸出培養(yǎng)液（注意不要吸出細(xì)胞），換 10ml新鮮培養(yǎng)液后繼續(xù)培養(yǎng)。

(二)如果細(xì)胞已長(zhǎng)滿，即可進(jìn)行傳代培養(yǎng)。具體步驟如下：

1. 低速離心，棄去培養(yǎng)液，用PBS（不含鈣,鎂離子）洗1-2次。

2. 按6-8ml/瓶補(bǔ)加培養(yǎng)基，輕輕打勻后吸出一半，分到新的培養(yǎng)瓶中（補(bǔ)加培養(yǎng)基至8到10ml）。如果沒有特別說(shuō)明，收到細(xì)胞后的次傳代一般是一傳二。

注：1、觀察細(xì)胞在低倍鏡（4或5X物鏡)下進(jìn)行，否則不能準(zhǔn)確判斷細(xì)胞的傳代密度?？醇?xì)胞的形態(tài)請(qǐng)?jiān)?/strong>10X或20X物鏡下。

2、瓶中運(yùn)輸培養(yǎng)基不能重復(fù)再用,請(qǐng)換用加雙抗的新培養(yǎng)基，細(xì)胞凍存后,培養(yǎng)基中可不加任何抗生素。

3、有些細(xì)胞貼壁不牢，如發(fā)現(xiàn)貼壁細(xì)胞有脫落，可離心吹打后接種到新瓶?jī)?nèi)。

4、收到細(xì)胞后，若發(fā)現(xiàn)培養(yǎng)瓶破損、有液溢出及細(xì)胞有污染，請(qǐng)及時(shí)與我們聯(lián)系。

凍存方法：

凍存液：90%胎牛血清，10%DMSO

儲(chǔ)存：液氮儲(chǔ)存

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