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- W2011031887 abstract "Effect of glutamine deprivation (GLN- medium) and of its replacement by 4mM ammonium chloride (GLN-/NH4+ medium) or by 4mM glutamate (GLN-/Gt+ medium) was studied on growth rate, morphology and metabolism of HT29 human colon cancer cells. Growth rates were modified as follows: at the first passage, growth of GLN- cells was strongly decreased (doubling time: 192 hr vs 32 hr in control cells grown in GLN+ medium); GLN-/NH4+ cells and GLN-/Gt+ cells were found to have doubling times of 72 and 70 hr, respectively. At the 8th passage, doubling times were decreased in all cases, being: 144 hr for GLN- cells, 60 hr for GLN-/NH4+ cells and 24 hr for GLN-/Gt+ cells, which indicates a capacity of adaptation of the cell-line to new culture conditions. GLN- cells and GLN-/NH4+ cells were found to exhibit an enterocytic type of differentiation (polarization of the cell layer with apical and cystic brush border and tight junctions); GLN-/Gt+ cells remained undifferentiated and comparable to control GLN+ cells. Glycogen level varied according to the phases of the culture, with a trend to lower level in glutamine deprived cells; glucose uptake and lactate production varied as a function of the medium composition and of the phases of the culture. At the 8th passage, all the glutamine deprived cells produced less lactate than control; GLN-/Gt+ cells were found to utilize less glucose than others." @default.
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- W2011031887 date "1986-01-01" @default.
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- W2011031887 title "Effect of glutamine deprivation and glutamate or ammonium chloride addition on growth rate, metabolism and differentiation of human colon cancer cell-line HT29" @default.
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- W2011031887 doi "https://doi.org/10.1016/0020-711x(86)90116-3" @default.
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