Dai Mu-Shui, Lu Hua
Department of Biochemistry and Molecular Biology, Indiana University School of Medicine and Simon Cancer Center, Indianapolis, Indiana 46202, USA.
J Cell Biochem. 2008 Oct 15;105(3):670-7. doi: 10.1002/jcb.21895.
Protein production is driven by protein translation and relies on ribosomal biogenesis, globally essential for cell growth, proliferation, and animal development. Deregulation of these sophisticated cellular processes leads to abnormal homeostasis and carcinogenesis. Thus, their tight regulation is vitally important for a cell to warrant normal growth and proliferation. One newly identified key regulator for ribosomal biogenesis and translation is the oncoprotein c-Myc, whose aberrantly excessive level and activity are highly associated with human cancers, too. Recently, we have shown that ribosomal protein L11 functions as a feedback regulator of c-Myc. Hence, in this review, we will provide some prospects on the interplay between c-Myc and ribosomal proteins during ribosomal biogenesis and discuss its implications in cancer.
蛋白质产生由蛋白质翻译驱动,并依赖核糖体生物合成,这对细胞生长、增殖及动物发育至关重要。这些复杂细胞过程的失调会导致异常的内环境稳定和致癌作用。因此,它们的严格调控对于细胞保证正常生长和增殖至关重要。一种新发现的核糖体生物合成和翻译的关键调节因子是癌蛋白c-Myc,其异常过高的水平和活性也与人类癌症高度相关。最近,我们已经表明核糖体蛋白L11作为c-Myc的反馈调节因子发挥作用。因此,在本综述中,我们将对核糖体生物合成过程中c-Myc与核糖体蛋白之间的相互作用提供一些展望,并讨论其在癌症中的意义。