| Identification of PDGFRα Positive Populations of Interstitial Cells in Human and Guinea Pig Bladders. | |
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MedLine Citation:
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PMID: 22704452 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: The bladder wall comprises a complex array of cells, including urothelium, smooth muscle, nerves and interstitial cells. Interstitial cells have several subtypes based on site, morphology and differential expression of markers such as anti-vimentin and anti-KIT. We examined whether a subpopulation of interstitial cells immunopositive for PDGFRα exists in human and guinea pig bladders. MATERIALS AND METHODS: Human and guinea pig bladder tissues were processed for immunohistochemistry and examined by bright field or confocal microscopy. Whole mount tissues and paraffin sections were labeled with antibodies to PDGFRα, vimentin, KIT and PGP9.5. Protein expression was assessed by Western blot. RESULTS: PDGFRα(+) cells were present in human and guinea pig bladders. In the guinea pig PDGFRα(+) cells had a branched stellate morphology and formed networks in the lamina propria. In human and guinea pig detrusors PDGFRα(+) cells were elongated on the boundary of smooth muscle bundles or were seen as groups of stellate cells in the interbundle spaces. PDGFRα(+) cells were located close to nerves labeled by PGP9.5. Double labeling revealed that PDGFRα(+) cells were a subgroup of the vimentin(+) population. A significant proportion of PDGFRα(+) cells were also KIT(+). Bands corresponding to PDGFRα, KIT and vimentin proteins were detected on Western blot. CONCLUSIONS: To our knowledge this study is the first to identify PDGFRα(+)/KIT(+) cells in the bladder lamina propria and detrusor layers. These cells are a subgroup of the vimentin(+) population, showing the complexity of bladder interstitial cells. PDGFRα(+) cells are apparently structurally associated with intramural nerves, indicating integration with bladder control mechanisms. |
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Authors:
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Kevin P Monaghan; Louise Johnston; Karen D McCloskey |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-6-14 |
Journal Detail:
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Title: The Journal of urology Volume: - ISSN: 1527-3792 ISO Abbreviation: - Publication Date: 2012 Jun |
Date Detail:
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Created Date: 2012-6-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376374 Medline TA: J Urol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Centre for Cancer Research and Cell Biology, Queen's University, Belfast, United Kingdom. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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