Abstract:
:The high affinity nerve growth factor (NGF) NGF receptor, p75NTR, is a member of the tumor necrosis factor (TNF) receptor superfamily that shares a conserved intracellular death domain capable of inducing apoptosis and suppressing growth in prostate epithelial cells. Expression of this receptor is lost as prostate cancer progresses and is minimal in established prostate cancer cell lines. We aimed to verify the role of p75NTR in the azacitidine-mediated antitumor effects on 22Rv1 and PC3 androgen-independent prostate cancer cells. In the present study, we reported that the antiproliferative and pro-apoptotic effects of 5-azacytidine (azacitidine) were more marked in the presence of physiological concentrations of NGF and were reduced when a blocking p75NTR antibody or the selective p75NTR inhibitor, Ro 08-2750, were used. Azacitidine increased the expression of p75NTR without interfering with the expression of the low affinity NGF receptor TrkA and induced caspase 9-dependent caspase 3 activity. Taken together, our results suggest that the NGF network could be a candidate for future pharmacological manipulation in aggressive prostate cancer.
journal_name
Oncol Repjournal_title
Oncology reportsauthors
Gravina GL,Marampon F,Sanità P,Mancini A,Colapietro A,Scarsella L,Jitariuc A,Biordi L,Ficorella C,Festuccia Cdoi
10.3892/or.2016.4832subject
Has Abstractpub_date
2016-07-01 00:00:00pages
125-30issue
1eissn
1021-335Xissn
1791-2431journal_volume
36pub_type
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