ATCC determines the biosafety level of a material based on our risk assessment as guided by the current edition of Biosafety in Microbiological and Biomedical Laboratories (BMBL), U.S. Department of Health and Human Services. It is your responsibility to understand the hazards associated with the material per your organization’s policies and procedures as well as any other applicable regulations as enforced by your local or national agencies.
ATCC highly recommends that appropriate personal protective equipment is always used when handling vials. For cultures that require storage in liquid nitrogen, it is important to note that some vials may leak when submersed in liquid nitrogen and will slowly fill with liquid nitrogen. Upon thawing, the conversion of the liquid nitrogen back to its gas phase may result in the vial exploding or blowing off its cap with dangerous force creating flying debris. Unless necessary, ATCC recommends that these cultures be stored in the vapor phase of liquid nitrogen rather than submersed in liquid nitrogen.
This cell line is a suitable transfection host.
This line has a mutation in codon 12 of the ras proto-oncogene, and can be used as a positive control for PCR assays of mutation in this codon.
A cell line established from a lymph node metastasis taken from the same patient one year later is available (see ATCC CCL-227).
The line is negative for CSAp (CSAp-) and colon antigen 3.
The cells are positive for keratin by immunoperoxidase staining.
There is a G -> A mutation in codon 273 of the p53 gene resulting in an Arg -> His substitution and a C -> T mutation in codon 309 resulting in a Pro -> Ser substitution.
The cells express elevated levels of p53 protein.
The line is positive for expression of c-myc, K-ras, H-ras, N-ras, myb, sis and fos oncogenes.
N-myc oncogene expression was not detected.
Matrilysin, a metalloproteinase associated with tumor invasiveness, is not expressed.
The cells have been reported to produce GM-CSF.
(Note: The L-15 medium formulation was devised for use in a free gas exchange with atmospheric air. A CO2 and air mixture is detrimental to cells when using this medium for cultivation)
To insure the highest level of viability, thaw the vial and initiate the culture as soon as possible upon receipt. If upon arrival, continued storage of the frozen culture is necessary, it should be stored in liquid nitrogen vapor phase and not at -70°C. Storage at -70°C will result in loss of viability.
The product is provided 'AS IS' and the viability of ATCC® products is warranted for 30 days from the date of shipment, provided that the customer has stored and handled the product according to the information included on the product information sheet, website, and Certificate of Analysis. For living cultures, ATCC lists the media formulation and reagents that have been found to be effective for the product. While other unspecified media and reagents may also produce satisfactory results, a change in the ATCC and/or depositor-recommended protocols may affect the recovery, growth, and/or function of the product. If an alternative medium formulation or reagent is used, the ATCC warranty for viability is no longer valid. Except as expressly set forth herein, no other warranties of any kind are provided, express or implied, including, but not limited to, any implied warranties of merchantability, fitness for a particular purpose, manufacture according to cGMP standards, typicality, safety, accuracy, and/or noninfringement.
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Fogh J, et al. Absence of HeLa cell contamination in 169 cell lines derived from human tumors. J. Natl. Cancer Inst. 58: 209-214, 1977. PubMed: 833871
Goodfellow M, et al. One hundred and twenty-seven cultured human tumor cell lines producing tumors in nude mice. J. Natl. Cancer Inst. 59: 221-226, 1977. PubMed: 77210034
Lelbovitz A, et al. Detection and analysis of a glucose 6-phosphate dehydrogenase phenotype B cell line contamination. J. Natl. Cancer Inst. 63: 635-645, 1979. PubMed: 288927
Adachi A, et al. Productive, persistent infection of human colorectal cell lines with human immunodeficiency virus. J. Virol. 61: 209-213, 1987. PubMed: 3640832
Schroy PC, et al. Detection of p21ras mutations in colorectal adenomas and carcinomas by enzyme-linked immunosorbent assay. Cancer 76: 201-209, 1995. PubMed: 8625092