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- Engström, Wilhelm
(author)
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Effects of Insulin-like Growth Factor Binding Protein 7 on Apoptosis in Human Teratocarcinoma Cells In Vitro
- 2010
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In: Anticancer Research. - 0250-7005 .- 1791-7530. ; 30, s. 911-914
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Journal article (peer-reviewed)abstract
- Human teratocarcinoma cells (Tera-2) deprived of serum undergo programmed cell death which can be counteracted by simultaneous addition of IGF-II. This protective effect of IGF-II was specific in the sense that addition of IGF-binding protein 7 (IGFBP-7) resulted in an increased apoptotic rate almost comparable to that of the classical IGFBPs. Autoradiographic analysis of incorporated tritiated thymidine indicated that the proportion of S-phase cells was comparable, irrespective of total cell numbers. This further suggests that IGF-II rescues cells from apoptosis and that IGFBP-7 is a specific antagonist.
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