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Expression and Distribution of Phosphodiesterase Isoenzymes in the Human Seminal Vesicles.

Uckert, Stefan; Waldkirch, Eginhard S; Sonnenberg, Joachim E; Sandner, Peter; Kuczyk, Markus A and Hedlund, Petter LU (2011) In Journal of Sexual Medicine 8(11). p.3058-3065
Abstract
Phosphodiesterase (PDE) isoenzymes have been shown to play a role in the control of human male genital tissues. There are hints from basic research and clinical studies that PDE5 inhibitors may have the ability to retard the male ejaculatory response. While the expression of PDE isoenzymes in the human seminal vesicles (SVs) has been described, the distribution of cyclic adenosine monophosphate (AMP)- and cyclic guanosine monophosphate (GMP)-PDEs has not yet been investigated. Aim.  The aim of this study was to elucidate the expression and distribution of PDE isoenzymes PDE3A, PDE4 (isoforms A and B), PDE5A, and PDE11A in human SV tissue. Methods.  Using immunohistochemistry (double-labeling techniques, laser fluorescence microscopy), the... (More)
Phosphodiesterase (PDE) isoenzymes have been shown to play a role in the control of human male genital tissues. There are hints from basic research and clinical studies that PDE5 inhibitors may have the ability to retard the male ejaculatory response. While the expression of PDE isoenzymes in the human seminal vesicles (SVs) has been described, the distribution of cyclic adenosine monophosphate (AMP)- and cyclic guanosine monophosphate (GMP)-PDEs has not yet been investigated. Aim.  The aim of this study was to elucidate the expression and distribution of PDE isoenzymes PDE3A, PDE4 (isoforms A and B), PDE5A, and PDE11A in human SV tissue. Methods.  Using immunohistochemistry (double-labeling techniques, laser fluorescence microscopy), the occurrence of PDE3A, PDE4A, PDE4B, PDE5A, and PDE11A, the vasoactive intestinal polypeptide (VIP), calcitonin gene-related peptide (CGRP), and protein gene product 9.5 (PGP 9.5) was examined in sections of SV. Cytosolic supernatants prepared from isolated human SV tissue were subjected to Western blot analysis using specific anti-PDE antibodies. Main Outcome Measure.  The expression and distribution by of PDE3A, PDE4A, PDE4B, PDE5A, and PDE11A in the human SV were investigated by means of immunohistochemistry and Western blot analysis. Results.  Immunosignals specific for PDE3A were seen in both the smooth muscle and the glandular epithelium, whereas staining for PDE4A, PDE5A, and PDE11A was mainly limited to epithelial cells. Varicose nerve fibers transversing the sections also presented staining for PDE3A. In nerve fibers and nerve endings, PDE4A and PDE4B were found co-localized with VIP; PDE5A-positive nerves also presented immunosignals specific for CGRP. The expression of said PDE isoenzymes was confirmed by Western blotting. Conclusions.  The results indicate that cyclic AMP- and cyclic GMP-PDE isoenzymes are involved in the control of secretory activity and efferent neurotransmission in the SV. These findings might be of importance with regard to the identification of new therapeutic avenues to treat premature ejaculation. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
keywords
Immunohistochemistry, Human Seminal Vesicles, Phosphodiesterase (PDE) Isoenzymes
in
Journal of Sexual Medicine
volume
8
issue
11
pages
3058 - 3065
publisher
Wiley-Blackwell
external identifiers
  • wos:000296712200009
  • pmid:21810184
  • scopus:80255138139
ISSN
1743-6109
DOI
10.1111/j.1743-6109.2011.02397.x
language
English
LU publication?
yes
id
bd57c0ff-08d0-4898-a6de-5671bbe59ab2 (old id 2151607)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/21810184?dopt=Abstract
date added to LUP
2011-09-04 21:10:34
date last changed
2017-11-12 03:09:16
@article{bd57c0ff-08d0-4898-a6de-5671bbe59ab2,
  abstract     = {Phosphodiesterase (PDE) isoenzymes have been shown to play a role in the control of human male genital tissues. There are hints from basic research and clinical studies that PDE5 inhibitors may have the ability to retard the male ejaculatory response. While the expression of PDE isoenzymes in the human seminal vesicles (SVs) has been described, the distribution of cyclic adenosine monophosphate (AMP)- and cyclic guanosine monophosphate (GMP)-PDEs has not yet been investigated. Aim.  The aim of this study was to elucidate the expression and distribution of PDE isoenzymes PDE3A, PDE4 (isoforms A and B), PDE5A, and PDE11A in human SV tissue. Methods.  Using immunohistochemistry (double-labeling techniques, laser fluorescence microscopy), the occurrence of PDE3A, PDE4A, PDE4B, PDE5A, and PDE11A, the vasoactive intestinal polypeptide (VIP), calcitonin gene-related peptide (CGRP), and protein gene product 9.5 (PGP 9.5) was examined in sections of SV. Cytosolic supernatants prepared from isolated human SV tissue were subjected to Western blot analysis using specific anti-PDE antibodies. Main Outcome Measure.  The expression and distribution by of PDE3A, PDE4A, PDE4B, PDE5A, and PDE11A in the human SV were investigated by means of immunohistochemistry and Western blot analysis. Results.  Immunosignals specific for PDE3A were seen in both the smooth muscle and the glandular epithelium, whereas staining for PDE4A, PDE5A, and PDE11A was mainly limited to epithelial cells. Varicose nerve fibers transversing the sections also presented staining for PDE3A. In nerve fibers and nerve endings, PDE4A and PDE4B were found co-localized with VIP; PDE5A-positive nerves also presented immunosignals specific for CGRP. The expression of said PDE isoenzymes was confirmed by Western blotting. Conclusions.  The results indicate that cyclic AMP- and cyclic GMP-PDE isoenzymes are involved in the control of secretory activity and efferent neurotransmission in the SV. These findings might be of importance with regard to the identification of new therapeutic avenues to treat premature ejaculation.},
  author       = {Uckert, Stefan and Waldkirch, Eginhard S and Sonnenberg, Joachim E and Sandner, Peter and Kuczyk, Markus A and Hedlund, Petter},
  issn         = {1743-6109},
  keyword      = {Immunohistochemistry,Human Seminal Vesicles,Phosphodiesterase (PDE) Isoenzymes},
  language     = {eng},
  number       = {11},
  pages        = {3058--3065},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Sexual Medicine},
  title        = {Expression and Distribution of Phosphodiesterase Isoenzymes in the Human Seminal Vesicles.},
  url          = {http://dx.doi.org/10.1111/j.1743-6109.2011.02397.x},
  volume       = {8},
  year         = {2011},
}