Cell-free synthesis of rat insulin-like growth factor II.
نویسندگان
چکیده
Total RNA extracted from a rat liver cell line (BRL 3A) that synthesizes rat insulin-like growth factor II (IGF-II) was translated in a reticulocyte lysate cell-free system. Incubation of the translation products with antisera to mature rat IGF-II (Mr 8700) selectively immunoprecipitated a Mr 21,600 protein. We propose that this protein represents pre-pro-IGF-II.
منابع مشابه
Stimulation of DNA Synthesis in Rat AlO Vascular Smooth Muscle Cells by Threonine-59 Insulin-like Growth Factor I
The clonal smooth muscle cell line AlO, derived from fetal rat aorta, binds I-lnsulln-llke growth factor I at a Type 1 insulin-like growth factor receptor. Threonine-59 insulin-like growth factor I, multiplication stimulating activity, and insulin inhibit the binding with IC50 = 10 nM, 84 nM, and 500 nM, respectively. Insulin in high concentrations (>5 piM) completely inhibits I-insulin-like gr...
متن کاملP84: Effect of Insulin-Like Growth Factor 2 (IGF2) as a Microglia-Derived Anti-Iinflammatory Ccytokine on Improving Memory Impairment Following Hippocampal Intracerebral Hemorrhage in Rat
Insulin-like growth factor 2 (IGF2) as a microglia-derived anti-inflammatory cytokine has a pivotal activity in memory consolidation. However, there is limited evidence on brain cell-originated IGF2 expression, regulation and function in pathological condition and neuro-inflammation. Hence, the present study was conducted to investigate the effect of IGF2 on improving the memory impairment in a...
متن کاملRecombinant human [Cys281]insulin-like growth factor-binding protein 2 inhibits both basal and insulin-like growth factor I-stimulated proliferation and collagen synthesis in fetal rat calvariae.
It is recognized that insulin-like growth factors (IGFs) are bound to specific high-affinity insulin-like growth factor-binding proteins (IGFBPs). The role of IGFBPs in bone metabolism is not well established. The effect of recombinant human [Cys281]IGFBP-2 ([Cys281]rhIGFBP-2) on bone formation in 21-day-old fetal rat calvariae was investigated. [Cys281]rhIGFBP-2 was expressed in and purified f...
متن کاملDemonstration of the production and physiological role of insulin-like growth factor II in rat thyroid follicular cells in culture.
Insulin-like growth factors (IGFs) are potent mitogens for FRTL5 rat thyroid follicular cells. IGFs also synergize the independent mitogenic effects of thyrotropin-stimulating hormone (TSH) and other agents that increase intracellular AMP concentration. We examined whether FRTL5 cells and M12 cells, a TSH-independent mutant cell line derived therefrom, secrete IGF that regulates the growth of r...
متن کاملProduction and functional characterization of human insulin-like growth factor 1
Insulin-like growth factor 1 (IGF-1) is a polypeptide hormone produced mainly by the liver in response to the endocrine growth hormone (GH) stimulus. This protein is involved in a wide range of cellular functions, including cellular differentiation, transformation, apoptosis suppression, migration and cell-cycle progression and other metabolic processes. In the current study, human heart cDNA w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Diabetes
دوره 31 7 شماره
صفحات -
تاریخ انتشار 1982