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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-3-21
pubmed:abstractText
Diagnostic use of antibodies against aquaporin water channel proteins and PAX-2, a nuclear transcription factor in renal development, was tested in 202 renal neoplasms, using tissue microarray technique. Immunohistochemistry for aquaporin-1, aquaporin-2, PAX-2, CD10, and cytokeratin 7 was performed on 102 clear cell renal cell carcinomas, 44 papillary renal cell carcinomas (among them 34 type 1 and 10 type 2), 24 chromophobe renal cell carcinomas, three collecting duct carcinomas (carcinomas of the collecting ducts of Bellini), and 29 oncocytomas. Aquaporin-1 expression was found in clear cell renal cell carcinomas and papillary renal cell carcinomas of both types (78 and 73%, respectively), but not in chromophobe renal cell carcinomas, collecting duct carcinomas, and oncocytomas. Aquaporin-2 expression was not seen in any of the tested tumors. PAX-2 and CD10 was found in the majority of clear cell renal cell carcinomas (88 and 85%, respectively) but only in few papillary renal cell carcinomas, chromophobe renal cell carcinomas and oncocytomas. Decrease or loss of aquaporin-1 and PAX-2 was shown in higher grades compared to lower grades of clear cell renal cell carcinomas (P<0.0001 and <0.0245, respectively). Cytokeratin 7 was rarely seen in clear cell renal cell carcinomas, type 2 papillary renal cell carcinomas, and oncocytomas, but was found in the majority of type 1 papillary renal cell carcinomas (97.1%) and chromophobe renal cell carcinomas (88%). Aquaporin-1 and PAX-2 expression was found to correlate with nuclear grading for clear cell renal cell carcinomas but not for papillary renal cell carcinomas. No correlation of tumor stage and aquaporin-1 and PAX-2 expression was seen. Aquaporin-1 and PAX-2 are reliable markers for clear cell renal cell carcinomas of lower grades but not for higher grades. CD10 expression remains stable, independent of nuclear grading.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/AQP1 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/AQP2 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Aquaporin 1, http://linkedlifedata.com/resource/pubmed/chemical/Aquaporin 2, http://linkedlifedata.com/resource/pubmed/chemical/Aquaporins, http://linkedlifedata.com/resource/pubmed/chemical/Blood Group Antigens, http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins, http://linkedlifedata.com/resource/pubmed/chemical/KRT7 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Keratin-7, http://linkedlifedata.com/resource/pubmed/chemical/Keratins, http://linkedlifedata.com/resource/pubmed/chemical/Neprilysin, http://linkedlifedata.com/resource/pubmed/chemical/PAX2 Transcription Factor, http://linkedlifedata.com/resource/pubmed/chemical/PAX2 protein, human, http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factors, http://linkedlifedata.com/resource/pubmed/chemical/Tumor Markers, Biological
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0893-3952
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
535-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15502805-Adenocarcinoma, Clear Cell, pubmed-meshheading:15502805-Adenoma, Oxyphilic, pubmed-meshheading:15502805-Aquaporin 1, pubmed-meshheading:15502805-Aquaporin 2, pubmed-meshheading:15502805-Aquaporins, pubmed-meshheading:15502805-Blood Group Antigens, pubmed-meshheading:15502805-Carcinoma, Papillary, pubmed-meshheading:15502805-Carcinoma, Renal Cell, pubmed-meshheading:15502805-DNA-Binding Proteins, pubmed-meshheading:15502805-Humans, pubmed-meshheading:15502805-Immunohistochemistry, pubmed-meshheading:15502805-Keratin-7, pubmed-meshheading:15502805-Keratins, pubmed-meshheading:15502805-Kidney, pubmed-meshheading:15502805-Kidney Neoplasms, pubmed-meshheading:15502805-Neoplasm Staging, pubmed-meshheading:15502805-Neprilysin, pubmed-meshheading:15502805-PAX2 Transcription Factor, pubmed-meshheading:15502805-Tissue Array Analysis, pubmed-meshheading:15502805-Transcription Factors, pubmed-meshheading:15502805-Tumor Markers, Biological
pubmed:year
2005
pubmed:articleTitle
Expression of aquaporins and PAX-2 compared to CD10 and cytokeratin 7 in renal neoplasms: a tissue microarray study.
pubmed:affiliation
Department of Clinical Pathology, Medical University of Vienna, AKH Vienna, Vienna, Austria.
pubmed:publicationType
Journal Article, Comparative Study