最新中文字幕-精品国产99-国产精品福利在线观看-粉嫩av一区二区三区-日韩精品久久久久-美丽的姑娘国语视频-亚洲欧洲色-国产不卡毛片-三级黄毛片-免费福利在线-日韩av三区-欧美成年人网站-欧洲美女与动交ccoo-成人涩涩软件-秋霞影院午夜老牛影院-婷婷久久伊人-呦呦视频在线观看-www.天天综合-日韩精品高清视频-国产欧美综合在线-欧美日韩一区二区三区在线视频-a猛片免费播放-91九色蝌蚪国产-国产欧美日韩专区-嫩模被强到高潮呻吟不断

This cell line contains HeLa marker chromosomes and has type A G6PD (see Nature 259:211-213, 1976 and In Vitro 14:469-475, 1978).
Note: Cells of this line contain HeLa marker chromosomes, and were derived via HeLa contamination

1. Remove and discard culture medium.
2. Briefly rinse the cell layer with 0.25% (w/v) Trypsin-0.53mM EDTA solution to remove all traces of serum which contains trypsin inhibitor.
3. 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.
4. Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting.
5. Add appropriate aliquots of the cell suspension to new culture vessels.
6. Incubate cultures at 37°C.

Subcultivation Ratio: 1:4 to 1:10
Medium Renewal: Every 2 to 3 days

Note:For more information on enzymatic dissociation and subculturing of cell lines consult Chapter 13 in Culture Of Animal Cells: A Manual Of Basic Technique by R. Ian Freshney, 5th edition, published by Wiley-Liss, N.Y., 2005.

Temperature: 37°C
Atmosphere: Air, 95%; Carbon dioxide (CO₂), 5%

Wong SC, Kilbourne ED. Changing viral susceptibility of a human cell line in continuous cultivation. I. Production of infective virus in a variant of the Chang conjunctival cell following infection with swine or N-WS influenza viruses. J. Exp. Med. 113: 95-110, 1961. PubMed: 13786478

Chang RS. Continuous subcultivation of epithelial-like cells from normal human tissues. Proc. Soc. Exp. Biol. Med. 87: 440-443, 1954. PubMed: 13237268

. . Virology 26: 478, 1965.

Gomez-Duarte OG, et al. Binding of vitronectin to opa-expressing Neisseria gonorrhoeae mediates invastion of HeLa cells. Infect. Immun. 65: 3857-3866, 1997. PubMed: 9284164

St. Geme JW, et al. Characterization of the genetic locus encoding Haemophilus influenzae type b surface fibrils. J. Bacteriol. 178: 6281-6287, 1996. PubMed: 8892830

Hay, R. J., Caputo, J. L., and Macy, M. L., Eds. (1992), ATCC Quality Control Methods for Cell Lines. 2nd edition, Published by ATCC.

Caputo, J. L., Biosafety procedures in cell culture. J. Tissue Culture Methods 11:223-227, 1988.

Fleming, D.O., Richardson, J. H., Tulis, J.J. and Vesley, D., (1995) Laboratory Safety: Principles and Practice. Second edition, ASM press, Washington, DC.