Effects of 5α-Dihydrotestosterone (DHT) on the Transcription of nm23 and c-myc Genes in Human Prostatic LNCaP Cells
1995
Abstract Proliferation of the androgen-dependent human prostate LNCaP cells was increased by the androgen DHT. Changes in the steady state level of the nm23 and c-myc mRNA in LNCaP cells, with or without 10 nM DHT, showed the nm23 mRNA to change rapidly, beginning to rise after 2 h and reaching its peak by 4 h of DHT treatment. In contrast, increases in the c-myc gene only became apparent after 4 h of treatment. Maximal increase of nm23 mRNA was observed at 10 −9 M DHT. The basal expression of c-myc and nm23 mRNAs was between 30-70% lower in the LNCaP cells, as compared with the androgen-independent PC-3 and JCA-1 human prostatic human carcinoma cells. Thus nm23 may be classified as a member of the early androgen-responsive genes.
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