## Abstract Most of the locally advanced and metastatic prostate carcinomas (PCs) treated with antiandrogenic therapy eventually become refractory to this treatment. Locally produced factors may control prostate tumor biology after androgen withdrawal. Adrenomedullin (AM) is expressed in the prosta
Expression and processing of peptidylglycine alpha-amidating monooxygenase messenger RNA in rat prostate
β Scribed by Samos, Luis F.; Gkonos, Peter J.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 560 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0270-4137
No coin nor oath required. For personal study only.
β¦ Synopsis
The prostate gland contains neuroendocrine cells and amidated neuroendocrine peptides whose presence has been related to aggressive forms of prostate cancer. The enzyme peptidylglycine alpha-amidating monooxygenase (PAM) is critical to the biosynthesis of amidated peptides and is commonly present in neuroendocrine cells. By northern blot hybridization analysis, PAM mRNA was detected in similar quantities in dorsolateral and ventral prostates of 3-month-old and 13-month-old rats. Multiple forms of PAM mRNA were present whose size distribution was more similar to PAM mRNAs found in pituitary than atrium. Alternative splice sites in PAM mRNA were investigated by reversetranscriptase polymerase chain reaction. Similar alternatively spliced forms of PAM mRNA were found in both prostate lobes, pituitary, and atrium. However, the distribution of forms in the prostate most resembled that of pituitary. Multiple forms of PAM mRNA are present in prostate and may serve as markers of neuroendocrine differentiation.
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