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Insulin-like growth factor (IGF-1) plays an important role in prostate cancer development. Recent studies suggest that IGF-1 has mitogenic action through epidermal growth factor receptor (EGFR). However, the mechanism remains largely unknown. Here, we demonstrated in prostate cancer DU145 cells that IGF-1 induced EGFR transactivation, leading to ERK activation. Matrix metalloproteinase-mediated shedding...
The complete nucleotide sequence of Cycas revoluta Thunb chloroplast 5 S rRNA was determined. It consists of 122 nucleotides. This is the only known 5 S rRNA sequence in Gymnospermae. It is highly homologous with chloroplast 5 S rRNA of higher plants (92-97%), but less homologous (about 54%) with those of lower plants. There is however 67% homology between Cycas and a procaryote A. nidulans. The chloroplast...
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