Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-7-18
pubmed:abstractText
Three isoforms of carbonic anhydrase-related protein (CA-RP) are evolutionally well conserved among the CA gene family but lack classical CA activity. Although the biological function of CA-RPs is unknown, overexpression of CA-RP VIII has been reported in certain tumor types. Based on the finding that CA-RPs are commonly expressed in the neuronal cells, we investigated expression of all three CA-RPs in gastrointestinal stromal tumor (GIST). In contrast to no detectable signal of any of the three CA-RPs in intestinal cells of Cajal, immunohistochemical analysis showed distinct cytoplasmic expressions of CA-RPs VIII and XI in 13 (59%) and 20 (91%) of 22 GIST tissue specimens, respectively. The positive signals for both CA-RPs VIII and XI were more intense in the periphery than in the central part of GISTs, whereas no significant signal for CA-RP X expression was observed in any of the GISTs. These expression patterns of CA-RPs were consistently observed by reverse transcription-polymerase chain reaction-Southern blot and immunocytochemistry in the cultured GIST cell line GIST-T1. Ectopic expression of CA-RP XI in GIST-T1 cells induced cell proliferation and invasion in vitro. These findings indicate that CA-RP XI plays a role in the development of GIST.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0945-6317
pubmed:author
pubmed:issnType
Print
pubmed:volume
447
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
66-73
pubmed:dateRevised
2006-11-20
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Overexpression of carbonic anhydrase-related protein XI promotes proliferation and invasion of gastrointestinal stromal tumors.
pubmed:affiliation
Department of Gastroenterology and Hepatology, Kochi Medical School, Nankoku, Kochi, 783-8505, Japan. nisao@med.kochi-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't