CN1074483A - 胸腺细胞无性细胞系的建立及培养 - Google Patents
胸腺细胞无性细胞系的建立及培养 Download PDFInfo
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Abstract
本发明涉及一种胸腺细胞无性细胞系的构建及
培养方法,是利用细胞融合技术,在融合剂PEG的
作用下,将骨髓瘤细胞与动物胸腺细胞融合,处理后
的细胞置于HAT选择培养液中,出现克隆细胞生长
后按有限稀释法进行单克隆化,获得胸腺细胞系。该
培养方法利用细胞工程技术成功地建立了分泌胸腺
肽等细胞因子的无性细胞系,为这类细胞活性因子的
开发开辟了一种新途径。
Description
本发明涉及一种细胞融合方法,利用骨髓瘤与胸腺细胞的融合,属于无性细胞的建立与培养方法。
近年来医学研究证明,胸腺所分泌的胸腺肽实际是多种活性肽的混合体,包含了40多种成份,胸腺肽象其它细胞活性因子(如前列腺素、尿激酶原,胆红素等)一样大都由动物组织(或血液、尿液等)直接提取,在一定程度上受到组织来源,纯化工艺或产量上的多种限制。
本发明的目的在于提供一种胸腺细胞无性细胞的培养方法,将骨髓瘤细胞系与动物胸腺细胞融合,培养出可分泌无种属特性的胸腺肽的无性细胞系。
本发明的特征是利用骨髓瘤为无性细胞系,加入动物胸腺细胞,通过融合剂使其进行细胞融合处理,将于处理后的细胞置于HAT选择培养液中,出现克隆细胞生长后按有限稀释法进行单克隆化,获得胸腺肽细胞无性细胞系。
下面结合操作过程详细叙述本发明:
本发明的材料为小鼠骨髓瘤细胞系(NS-1),常规生长培养液及选择培养液(RPMI-1640及HAT),融合剂为50%PEC(MW4000),细胞冻存液为10%DMSO。各种胸腺细胞无性细胞系的基本特征是可分泌胸腺肽等细胞活性因子。
在细胞融合过程中,首先将纯系幼鼠胸腺在室温下轻轻磨碎,制成单细胞悬液,然后将108动物胸腺细胞与4×107个NS-1细胞悬液充分混合,滴加0.5ml50%PEG(二甲基亚砜)进行细胞融合处理,然后将处理后的细胞悬浮在HAT选择培养液中,继而移入含饲养细胞的40孔微量培养板中,每孔0.1ml,最后放入含5%CO2湿度饱和的37℃温箱中培养,隔日换液,融合后7-10天出现克隆细胞生长,将融合细胞克隆按有限稀释法进行单克隆化,待单克隆细胞布满3/5孔,过夜培养测定上清活性。最后构建成胸腺细胞的无性细胞系。细胞系的冻存是以1/10DMSO冻存液悬浮10胸腺无性细胞/ML,每瓶加入1ml,熔封口,置-20℃水箱过夜,次日移入液氮保存。
本发明的特点为利用细胞融合技术,将骨髓瘤与胸腺融合,免去了常规从动物组织直接提取法在组织来源,纯化工艺或产量和活性上的多种限制,为这类细胞活性因子的开发开辟了一种新途径。
Claims (3)
1、一种胸腺细胞无性细胞系的建立及培养方法,其特征在于:将骨髓瘤细胞系与动物胸腺细胞混合,在融合剂作用下进行细胞融合,以HAT选择培养,按有限稀释法单克隆化,构建成一种胸腺细胞无性细胞系。
2、根据权利要求1所术的培养方法,其特征在于:各种胸腺细胞无性细胞系的基本特征是可分泌胸腺肽等细胞活性因子。
3、根据权利要求1所述的培养方法,其特征在于:建立该细胞系的骨髓瘤细胞为小鼠骨髓瘤细胞,动物胸腺为纯系幼鼠胸腺细胞,融合剂为PEC(二甲基亚砜)。
Priority Applications (1)
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CN 92111517 CN1074483A (zh) | 1992-10-15 | 1992-10-15 | 胸腺细胞无性细胞系的建立及培养 |
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CN 92111517 CN1074483A (zh) | 1992-10-15 | 1992-10-15 | 胸腺细胞无性细胞系的建立及培养 |
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CN1074483A true CN1074483A (zh) | 1993-07-21 |
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CN 92111517 Pending CN1074483A (zh) | 1992-10-15 | 1992-10-15 | 胸腺细胞无性细胞系的建立及培养 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102827826A (zh) * | 2012-09-11 | 2012-12-19 | 赵永祥 | 一种诱导树突状细胞与肿瘤细胞融合的方法 |
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1992
- 1992-10-15 CN CN 92111517 patent/CN1074483A/zh active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102827826A (zh) * | 2012-09-11 | 2012-12-19 | 赵永祥 | 一种诱导树突状细胞与肿瘤细胞融合的方法 |
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