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概要
Insulin-like growth factor 1 (IGF-I) is a polypeptide that belongs to the family of insulin-like growth factors that are similar in molecular structure to proinsulin. IGF-I binds to the IGF-I receptor and is a potent activator of the PI3K/AKT pathway and also activates ERK1/2 signaling. IGF-I is required for embryonic development, and it is produced mainly in the liver in response to a hepatocyte growth hormone. In the absence of insulin, IGF-I is necessary for the maintenance of human pluripotent stem cells (Wang et al.). Together with IL-3, IGF-I stimulates differentiation and proliferation of myeloid cells and has been shown to regulate lymphopoiesis by stimulating proliferation and differentiation of T and B cells in lymphoid organs (Heemskerk et al.).
技术资料
| Document Type | 产品名称 | Catalog # | Lot # | 语言 |
|---|---|---|---|---|
| Product Information Sheet | Human Recombinant IGF-I | 78022, 78022.1, 78022.2 | All | English |
| Safety Data Sheet | Human Recombinant IGF-I | 78022, 78022.1, 78022.2 | All | English |
数据及文献
Data
(A) The biological activity of Human Recombinant IGF-I was tested by its ability to promote the proliferation of FDC-P1 cells. Cell
proliferation was measured using a fluorometric assay method. The EC50 is defined as the effective concentration of the growth factor at
which cell proliferation is at 50% of maximum. The EC50 in the above example is less than 5 ng/mL.
(B) 2 μg of Human Recombinant IGF-I was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and visualized
by Coomassie Blue staining. Human Recombinant IGF-I has a predicted molecular mass of 7.7 kDa.
