Pilz R B, Van den Berghe G, Boss G R
J Clin Invest. 1987 Mar;79(3):1006-9. doi: 10.1172/JCI112867.
Starvation for a single essential amino acid induced differentiation of the human promyelocytic leukemia line HL-60 into morphologically and functionally mature granulocytes. Differentiation occurred when protein synthesis was inhibited up to 90% but was not simply secondary to growth arrest or protein synthesis inhibition, because neither glucose starvation nor treatment with protein synthesis inhibitors induced differentiation. Induction of differentiation by an aminoacyl tRNA synthetase inhibitor and the effect of cycloheximide and puromycin on amino acid-starved cells suggested an important regulatory role of tRNA molecules during differentiation.
单一必需氨基酸饥饿可诱导人早幼粒细胞白血病细胞系HL-60分化为形态和功能成熟的粒细胞。当蛋白质合成被抑制高达90%时发生分化,但这并非仅仅是生长停滞或蛋白质合成抑制的继发结果,因为葡萄糖饥饿和蛋白质合成抑制剂处理均未诱导分化。氨酰tRNA合成酶抑制剂诱导分化以及环己酰亚胺和嘌呤霉素对氨基酸饥饿细胞的作用表明,tRNA分子在分化过程中具有重要的调节作用。