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.
Cells contain SV40 sequences
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.
The hTERT-HPNE cell line was developed from human pancreatic duct by transduction with a retroviral expression vector (pBABEpuro) containing the hTERT gene. The infected cells became positive for telomerase, failed to senesce, and were still proliferating after more than 150 doublings RefLee KM. et al. Immortalization with telomerase of the Nestin-positive cells of the human pancreas. Biochem. Biophys. Res. Commun. 301(4):1038-1044, 2003. Pubmed: 12589817.
Exposing hTERT-HPNE cells to sodium butyrate and 5-aza-2'-deoxycytidine lead to the formation of pancreatic ductal cells marked by the expression of p-glycoprotein (multidrug resistance (MDR-1)), carbonic anhydrase II, and the cytokeratins 7, 8, and 19.
hTERT-HPNE cells were found to have properties of the intermediary cells formed during acinar-to-ductal metaplasia, which included their undifferentiated phenotype, expression of Nestin and, evidence of active Notch signaling RefLee KM. et al. Notch 2-positive progenitors with the intrinsic ability to give rise to pancreatic ductal cells. Lab. Investigation 85 (8): 1003-1012, 2005. Pubmed: 15924149.
To ensure the highest level of viability, thaw the vial and initiate the culture as soon as possible upon receipt. If storage of the frozen culture is necessary upon arrival, store the vial 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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Lee KM. et al. Notch 2-positive progenitors with the intrinsic ability to give rise to pancreatic ductal cells. Lab. Investigation 85 (8): 1003-1012, 2005. Pubmed: 15924149
Lee KM. et al. Immortalization with telomerase of the Nestin-positive cells of the human pancreas. Biochem Biophys Res Commun. ; 301(4):1038-44 (2003). Pubmed: 12589817
Bodnar AG, et al. Extension of life-span by introduction of telomerase into normal human cells. Science 279: 349-352, 1998. PubMed: 9454332
Caputo, J. L., Biosafety procedures in cell culture. J. Tissue Culture Methods 11:223-227, 1988.
Freshney RI. Culture of Animal Cells: A Manual of Basic Technique, 5th edition. New York: Wiley Liss; 2005. For more information on enzymatic dissociation and subculturing of cell lines see Chapter 13.