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目的研究ｃｍｙｃ反义寡核苷酸对ＨＬ６０细胞中ｃｍｙｃ基因的表达及ＨＬ６０细胞分化的影响。方法采用针对原癌基因ｃｍｙｃ的ｍＲＮＡ５’非翻译区的一个１８ｂｐ的反义寡核苷酸５’ｄ（ＣＴＴＣＴＣＧＡＧＧＣＡＧＧＡＧＧＧ）３’与人早幼粒白血病细胞系ＨＬ６０细胞共培养５ｄ，检测ｃｍｙｃｍＲＮＡ量的变化及其对ＨＬ６０细胞分化的影响。结果用ＮｏｒｔｈｅｒｎＢｌｏｔ检测出ＨＬ６０细胞ｃｍｙｃｍＲＮＡ的含量减少；细胞形态学变化以及非特异性酯酶（ＮＳＥ）染色、硝基四氮唑蓝（ＮＢＴ）还原试验均提示ＨＬ６０细胞出现了分化，部分细胞向粒细胞方向分化，部分细胞向单核细胞方向分化。结论ｃｍｙｃ反义寡核苷酸能够抑制ｃｍｙｃ基因的表达并能诱导ＨＬ６０细胞分化。
Aim To study the effect of cmyc antisense oligonucleotide on cmyc gene expression and HL60 cell differentiation in HL60 cells. METHODS: A 18 bp antisense oligonucleotide 5 ’(CTTCTCGAGGCAGGAGGG) 3’ against the oncogene c-myc mRNA 5 ’untranslated region was co-cultured with human promyelocytic leukemia HL60 cells for 5 days to detect c The changes of mycmRNA and their effects on the differentiation of HL60 cells. Results The content of c-mycmRNA in HL60 cells was decreased by Northern blot. The cell morphological changes and non-specific esterase (NSE) staining and NBT reduction showed that HL60 cells were differentiated and some cells Granulocytes in the direction of differentiation, some cells to monocyte differentiation. Conclusion c myc antisense oligonucleotide can inhibit the expression of c myc gene and can induce HL60 cell differentiation.