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CHO-K1 倉鼠卵巢細胞亞株
1957年，Puck TT從成年中國倉鼠卵巢的活檢組織建立了CHO細胞，CHO-K1是CHO的一個亞克隆。CHO-K1的生長需要
培養條件：F12K培養基(SIGMA,貨號N3520，添加NaHCO3 2.5g/L)，90%；優質胎牛血清，10%
動物種別：中國倉鼠
性別：雌
組織來源：卵巢
形態：上皮細胞
傳代方法的介紹 1：4-1：8
支原體檢測 陰性
以下是此細胞ATCC
CHO-K1 (ATCC® CCL-61™)
CHO-K1 倉鼠卵巢細胞亞株
Organism Cricetulus griseus, hamster, Chinese
Tissue ovary
Product Format frozen
Morphology epithelial-like
Culture Properties adherent
Biosafety Level 1
Gender female
Applications
This cell line is suitable as a transfection host.
Storage Conditions liquid nitrogen vapor phase
Karyotype Chromosome Frequency Distribution 50 Cells: 2n = 22. Stemline number is hypodiploid.
Derivation
The CHO-K1 cell line was derived as a subclone from the parental CHO cell line initiated from a biopsy of an ovary of an adult Chinese hamster by T. T. Puck in 1957.
Clinical Data
female
Virus Susceptibility Vesicular stomatitis, Orsay (Indiana)
Vesicular stomatitis, Glasgow (Indiana)
Getah virus
Virus Resistance
poliovirus 2; modoc virus; Button Willow virus
Comments
The cells require proline in the medium for growth.
Complete Growth Medium The base medium for this cell line is ATCC-formulated F-12K Medium, Catalog No. 30-2004. To make the complete growth medium, add the following components to the base medium: fetal bovine serum to a final concentration of 10%.
Subculturing
Volumes are given for a 75 cm2 flask. Increase or decrease the amount of dissociation medium needed proportionally for culture vessels of other sizes.
Remove and discard culture medium.
Briefly rinse the cell layer with 0.25% (w
) Trypsin- 0.53 mM EDTA solution to remove all traces of serum which contains trypsin inhibitor.
Add 2.0 to 3.0 mL of Trypsin-EDTA solution to flask and observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 15 minutes).
Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach may be placed at 37°C to facilitate dispersal.
Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting.
Add appropriate aliquots of the cell suspension to new culture vessels.
Incubate cultures at 37°C.
Subc*tion Ratio: A subc*tion ratio of 1:4 to 1:8 is recommended
Medium Renewal: Once or twice between subculture
Cryopreservation
Freeze medium: Complete growth medium 95%; DMSO, 5%
Storage temperature: liquid nitrogen vapor phase
Culture Conditions
Temperature: 37°C
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