In Vitro Technologies :: Products

Permits and Restrictions	View Permits
Organism	Homo sapiens, human
Tissue	pancreas
Product Format	frozen
Morphology	epithelial
Culture Properties	adherent
Biosafety Level	1 Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Disease	adenocarcinoma
Age	64 years
Gender	female
Ethnicity	Caucasian
Storage Conditions	liquid nitrogen vapor phase

Karyotype	modal number = 61
Derivation	HPAC is a pancreatic adenocarcinoma epithelial cell line derived in 1985 from a nude mouse xenograft of a primary tumor removed from the head of the pancreas of a woman with moderate to well differentiated pancreatic adenocarcinoma of ductal origin.
Clinical Data	64 years female Caucasian
Receptor Expression	epidermal growth factor (EGF), expressed glucocorticoid, expressed epidermal growth factor (EGF); glucocorticoid
Genes Expressed	HPAC cells are positive for keratin and negative for vimentin and chromogranin A.
Tumorigenic	Yes
Effects	Yes, the cells form tumors in athymic nude mice at the site of inoculation which are histologically similar to the tumor of origin Yes, the cells have a colony forming efficiency of 64% on plastic and 3.2% in agarose.
Comments	HPAC proliferation is stimulated by insulin, insulin-like growth factor I (IGF-I), epidermal growth factor (EGF), and transforming growth factor alpha (TGF alpha). Cell growth is suppressed by dexamethasone and other glucocorticoids. Crude HPAC cell exacts contained significant concentrations of tumor-associated antigens CEA, CA 125, and CA 19-9. In culture, HPAC cells form monolayers of morphologically heterogenous polar epithelial cells. HPAC is the first reported human pancreatic adenocarcinoma cell line to express a functional glucocorticoid receptor. Immunohistochemical staining revealed that HPAC cells express the pancreatic ductal epithelium marker DU-PAN-2 as well as antigens recognized by the monoclonal antibodies HMFG1 and AUA1.

Complete Growth Medium	A 1:1 mixture of Dulbecco's modified Eagle's medium and Ham's F12 medium containing 1.2 g/L sodium bicarbonate, 2.5 mM L-glutamine, 15 mM HEPES and 0.5 mM sodium pyruvate supplemented with 0.002 mg/ml insulin, 0.005 mg/ml transferrin, 40 ng/ml hydrocortisone, 10 ng/ml epidermal growth factor and 5% fetal bovine serum
Subculturing	Volumes used in this protocol are for 75 cm² flask; proportionally reduce or increase amount of dissociation medium for culture vessels of other sizes. Remove and discard culture medium. Briefly rinse the cell layer with 0.25% (w/v) Trypsin-0.53 mM EDTA solution to remove all traces of serum that 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 Subculture Ratio: 1:3 to 1:6, every 6 to 8 days. Medium Renewal: 2 to 3 times a week. Note: For more information on enzymatic dissociation and subculturing of cell lines consult Chapter 10 in Culture of Animal Cells, a manual of Basic Technique by R. Ian Freshney, 3rd edition, published by Alan R. Liss, N.Y., 1994.
Cryopreservation	Freeze medium: Complete growth medium supplemented with 5% (v/v) DMSO Storage temperature: liquid nitrogen vapor phase
Culture Conditions	Temperature: 37°CAtmosphere: Air, 95%; carbon dioxide (CO₂), 5%

STR Profile	Amelogenin: X CSF1PO: 13 D13S317: 11 D16S539: 9,10 D5S818: 12 D7S820: 10,12 THO1: 9.3 TPOX: 10,11 vWA: 15,17
Population Doubling Time	41 hrs

Name of Depositor	WR Gower
Year of Origin	1985
References	Gower WR Jr., et al. HPAC, a new human glucocorticoid-sensitive pancreatic ductal adenocarcinoma cell line. In Vitro Cell. Dev. Biol. 30A: 151-161, 1994.

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