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clavichord新蟲 (小有名氣)
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| We tested the viability of hES and hiPS cells plated on Matrigel-coated plates in mTeSR at clonal density, which is an initial critical hurdle in the establishment of individual clonal lines. |
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新蟲 (小有名氣)
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Description: Endothelial cell growth factor (ECGF) is an extract of bovine brain containing growth promoting factors for vascular endothelial cells of mammalian origin. ECGF has also been reported to be beneficial as a media supplement for the fusion and growth of hybridoma cells in monoclonal antibody production. Endothelial cell growth factor is prepared using a modification of the method of Maciag, et al. (1979) lyophilized from a sterile solution containing NaCl and streptomycin sulfate. Endothelial cells from human umbilical vein (HUVEC) can be established as primary cultures by traditional methods. The serial propagation of these cells has proved to be difficult. The long-term propagation of these cells in vitro can be achieved with an extract prepared from bovine brain. The introduction of a fibronectin or collagen matrix to the cell culture system allows to cultivate endothelial cells at clonal densities. With ECGF, the FCS requirement can be reduced. Heparin potentiates the mitogenic activity of crude preparations of ECGF. ECGF has also been reported to eliminate the need for feeder cells in the clonal growth of hybridomas and other cell types. 描述: 內(nèi)皮細胞生長因子(ECGF)是一種從牛大腦中提取出來的,含有能夠促進哺乳動物血管內(nèi)皮細胞生長的因子。 也有報道稱ECGF對用于單克隆抗體生產(chǎn)的雜交瘤細胞的融合和生長有一定的輔助作用。制備內(nèi)皮細胞生長因子的方法是根據(jù)Maciag等的方法(1979)進行改進的,是從含有氯化鈉和硫酸鏈霉素的滅菌溶液中凍干而來。 人臍靜脈內(nèi)皮細胞(HUVEC)可以用傳統(tǒng)的方法進行原代培養(yǎng)。但這些細胞的持續(xù)增殖培養(yǎng)已被證明是非常困難的。牛腦中的提取物可以保證這些細胞的長期體外增殖。在細胞培養(yǎng)系統(tǒng)中加入纖維連接蛋白或膠原基質(zhì)可以培養(yǎng)內(nèi)皮細胞。當加入ECGF后,在細胞培養(yǎng)液中加入胎牛血清的量可以減少。肝素可以提高ECGF有絲分裂的活性。 也有報道稱在雜交瘤和其他類型細胞的增殖時,加入ECGF后可以不用加入飼養(yǎng)層細胞。 以上是網(wǎng)上的平行文本,但未能指出具體的意思。 對分選的(腫瘤)干細胞分選后,進行稀釋,稀釋到每孔一個細胞。先計數(shù),比如每毫升1000個,那你就用96孔板,每次每個孔板加1ul細胞懸液,進行倍比稀釋,然后再在鏡下觀察每個孔,只有一個細胞的那個孔用筆圈起來就行了,然后進行培養(yǎng)。 我理解就這意思! |

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