title: Effects of 5 alpha-dihydrotestosterone (DHT) on the transcription of nm23 and c-myc genes in human prostatic LNCaP cells.
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.
authors.affiliation: Department of Biochemistry & Molecular Biology, New York Medical College, Valhalla 10595.
authors.forename: I
authors.initials: I
authors.lastname: Yoshimura
authors.forename: J M
authors.initials: JM
authors.lastname: Wu
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: C
authors.initials: C
authors.lastname: Ng
authors.forename: C
authors.initials: C
authors.lastname: Mallouh
authors.forename: J M
authors.initials: JM
authors.lastname: Backer
authors.forename: C E
authors.initials: CE
authors.lastname: Mendola
authors.forename: H
authors.initials: H
authors.lastname: Tazaki
mesh_terms: D002455:Cell Division / Q000187:drug effects; D013196:Dihydrotestosterone / Q000494:pharmacology*; D015870:Gene Expression / Q000187:drug effects; D016259:Genes, myc; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D020559:Monomeric GTP-Binding Proteins; D054778:NM23 Nucleoside Diphosphate Kinases; D009701:Nucleoside-Diphosphate Kinase; D011467:Prostate / Q000378:metabolism*; D012333:RNA, Messenger / Q000235:genetics; D013997:Time Factors; D014157:Transcription Factors / Q000235:genetics*; D014158:Transcription, Genetic / Q000187:drug effects; D014407:Tumor Cells, Cultured / Q000166:cytology
chemical_list: D054778:NM23 Nucleoside Diphosphate Kinases; D012333:RNA, Messenger; D014157:Transcription Factors; D013196:Dihydrotestosterone; C517938:NME1 protein, human; D009701:Nucleoside-Diphosphate Kinase; D020559:Monomeric GTP-Binding Proteins