alexa Primary and long term epithelial cell cultures from human fetal normal colonic mucosa.
Biochemistry

Biochemistry

Biochemistry & Analytical Biochemistry

Author(s): Siddiqui KM, Chopra DP

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Abstract Primary and passaged cultures of normal colon epithelial cells, derived from human fetuses (13 to 17 wk of conceptual age) have been established. These cultures have been passaged 16 times thus far. The cultures have been initiated and maintained in medium consisting of 50\% Dulbecco's minimum essential medium and 50\% Ham's F12 medium and supplemented with antibiotics (penicillin, 100 U/ml; streptomycin, 100 micrograms/ml); ascorbic acid, 40 micrograms/ml; L-isoleucine, 50 micrograms/ml; epidermal growth factor, 20 ng/ml; insulin, 5 micrograms/ml; cholera toxin, 5 ng/ml; transferrin, 1 microgram/ml; fetal bovine serum (10\%); and HEPES, 25 mM final concentration, and incubated at 37 degrees C in humidified gas containing 5\% CO2: 95\% air. The cellular and subcellular characteristics of primary and passaged cultures were defined using light microscopy and scanning and transmission electron microscopy. The cells exhibited microvilli on cell surfaces and showed junctional complexes and interdigitations between cells. Indented nuclei with dense chromatin and marginated heterochromatin, numerous mitochondria, rough endoplasmic reticulum, polysomes, and extensive Golgi zones were conspicuous. Also, periodic acid Schiff's reagent-positive staining of the cells suggests the active synthesis of complex mucopolysaccharides in the cytoplasm.
This article was published in In Vitro and referenced in Biochemistry & Analytical Biochemistry

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