Ferguson Emily C, Rathmell Jeffrey C
Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA.
Trends Biochem Sci. 2008 Aug;33(8):359-62. doi: 10.1016/j.tibs.2008.05.006. Epub 2008 Jul 4.
The origins and role of the Warburg effect have remained uncertain for many years. Two recent studies demonstrate that an embryonic- and cancer-cell-specific isoform of the enzyme pyruvate kinase M2 (PKM2) is regulated by binding to phospho-tyrosine motifs and promotes increased cell growth and tumor development. PKM2 enhances the use of glycolytic intermediates for macromolecular biosynthesis and tumor growth. These findings illustrate the distinct advantages of this metabolic phenotype in cancer cell growth.
多年来,瓦伯格效应的起源和作用一直不明确。最近的两项研究表明,丙酮酸激酶M2(PKM2)的一种胚胎细胞和癌细胞特异性同工型受磷酸化酪氨酸基序结合调控,并促进细胞生长增加和肿瘤发展。PKM2增强了糖酵解中间产物用于大分子生物合成和肿瘤生长的过程。这些发现说明了这种代谢表型在癌细胞生长中的独特优势。