| Literature DB >> 15891093 |
Guy Smagghe1, Wendy Vanhassel, Clarina Moeremans, Daan De Wilde, Shintaro Goto, Marcia J Loeb, Michael B Blackburn, Raziel S Hakim.
Abstract
Stem cells derived from midguts of the caterpillar, Spodoptera littoralis, can be induced to multiply and differentiate in vitro. Ecdysone (E) and 20-hydroxyecdysone (20E) had a concentration-dependent effect: E was more active in cell proliferation and 20E in differentiation. Ecdysteroid receptors in midgut stem cell nuclei were stained with the antibody 9B9. In addition, alpha-arylphorin and four midgut differentiation factors (MDF) specifically stimulated proliferation and differentiation of stem cells, respectively. The activity of a panel of peptide growth factors and hormones on growth and metamorphosis of the insect midgut is discussed.Entities:
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Year: 2005 PMID: 15891093 DOI: 10.1196/annals.1327.094
Source DB: PubMed Journal: Ann N Y Acad Sci ISSN: 0077-8923 Impact factor: 5.691