Enhanced expression of the <em>c-myc</em> protooncogene in high-grade human prostate cancers
摘要：
We examined a series of 29 surgical specimens of benign and malignant human prostate tissue for the expression of both the cHa-ras and c-myc protooncogenes. Northern blots were prepared using polyadenylated mRNA extracted from nine prostatic adenocarcinomas, 19 benign hypertrophied prostates (BPH) and one normal prostate. When the Northern blots were hybridized to a probe for cHa-ras, only one specimen of BPH showed an appreciable amount of the 1.2-kb transcript homologous to cHa-ras. Upon reprobing these blots with c-myc, six cancers showed a considerable amount of a 2.4-kb transcript homologous to c-myc. Three other cancers and all the benign tissue showed little or no detectable 2.4-kb c-myc transcript. On retrospective analysis, the cancers with elevated c-myc transcripts were found to have a Gleason score of 5 and above (poorly differentiated tumors), while the cancers with little or no c-myc transcripts were all of Gleason score 4 and lower. Finally, we compared our ability to de
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DOI：
10.1002/pros.2990110405
被引量：
年份：
1987
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