Karyotype
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hyperdiploid; modal number = 73; range = 65 to 75; several translocations were evident; two to three apparently normal copies of number 7 (to which the cystic fibrosis gene has been mapped) were present in every metaphase examined
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Derivation
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This line was derived from a ductal adenocarcinoma (liver metastasis) from a patient with cystic fibrosis.
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Antigen Expression
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CA19-9 antigen, 12000 units/mL, epithelial keratins
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Genes Expressed
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carcinoembryonic antigen (CEA), 9 ng/mL; pancreatic oncofetal antigen (POA), 28 ng/mL; adenocarcinoma associated antigen (ACAA), 5000 ng/mL; CA 19-9 antigen, 12000 units/mL; epithelial keratins
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Cellular Products
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carcinoembryonic antigen (CEA), 9 ng/mL; pancreatic oncofetal antigen (POA), 28 ng/mL; adenocarcinoma associated antigen (ACAA), 5000 ng/mL; CA 19-9 antigen, 12000 units/mL; epithelial keratins
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Effects
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Yes, in nude mice (passage 34)
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Comments
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The cells exhibit ion transport activities consistent with cystic fibrosis and express the product of the CF gene (cystic fibrosis transmembrane regulator, CFTR).
CFPAC-1 cells show no effect of cAMP agonists, adenyl cyclase stimulators or phosphodiesterase inhibitors on Cl- flux, but do respond to Ca++ ionophores with increase Cl- efflux.
The cells have the most common form of the CF mutation, deletion of three nucleotides resulting in the absence of phenylalanine at position 508.
CFPAC-1 cells have epithelial morphology and polarization with apical microvilli, tight junctions and gap junctions.
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