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A substance, such as a vitamin or hormone, that is required for the stimulation of growth in living cells.
- ‘Insulin-like growth factor, another muscle builder, is undetectable.’
- ‘A specific growth factor for liver cells is thought to stimulate their vigorous proliferation.’
- ‘The researchers found that when monocytes were exposed to a growth factor, they created a set of pluripotent stem cells.’
- ‘Studies of cell cultures show that growth factors are essential for cells to multiply, with the particular growth factor or factors required depending on the cell type.’
- ‘The positive response is paralleled by a rise in the insulin-like growth factor.’
growth factor/ɡrōTH ˈfaktər/
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