Identification of iron-loaded ferritin as an essential mitogen for cell proliferation and postembryonic development in Drosophila.

Abstract excerpt

Animal cells require extrinsic cues for growth, proliferation and survival. The propagation of Drosophila imaginal disc cells in vitro, for example, requires the supplementation of fly extract, the composition of which remains largely undefined. Here I report the biochemical purification of iron-loaded ferritin as an active ingredient of fly extract that is required for promoting the growth of clone 8 imaginal...

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