Source:http://linkedlifedata.com/resource/pubmed/id/15105812
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rdf:type | |
lifeskim:mentions |
umls-concept:C0017262,
umls-concept:C0018270,
umls-concept:C0022984,
umls-concept:C0185117,
umls-concept:C0220901,
umls-concept:C0237881,
umls-concept:C0332437,
umls-concept:C0337112,
umls-concept:C0345905,
umls-concept:C0750502,
umls-concept:C1524075,
umls-concept:C1552644,
umls-concept:C1823153,
umls-concept:C2349976,
umls-concept:C2911684
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pubmed:issue |
8
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pubmed:dateCreated |
2004-7-20
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pubmed:abstractText |
Laminin gamma 2 chain is an extracellular matrix protein that plays an important role in cell migration and tumor invasion. We report altered expression and characteristic localization of this chain in a series of 105 cases of intrahepatic cholangiocarcinomas examined immunohistochemically. All tumors were grossly classified into the following three types: intraductal growth type (n=9), periductal infiltrating type (n=8) and mass-forming type (n=88). The tumors exhibited three distinct staining types: basement membrane staining, cytoplasmic staining and stromal staining. The basement membranous staining of laminin gamma 2 chain was more frequent in biliary dysplasia, intraductal growth and periductal infiltrating type than in mass-forming type. The cytoplasmic staining of carcinoma cells was observed especially at the cancer-stromal interface or at the invasive front of tumors. Stromal staining of laminin gamma 2 chain was essentially localized in the stroma around cancer cells at the invasive area, and the expression was significantly correlated with tumor aggressive factors and a poor prognosis in patients with intrahepatic cholangiocarcinoma. We conclude that laminin gamma 2 chain exhibits aberrant expression in a stepwise manner through different aggressive stages of tumor progression.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0893-3952
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
17
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
938-45
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pubmed:meshHeading |
pubmed-meshheading:15105812-Aged,
pubmed-meshheading:15105812-Bile Duct Neoplasms,
pubmed-meshheading:15105812-Bile Ducts, Intrahepatic,
pubmed-meshheading:15105812-Cholangiocarcinoma,
pubmed-meshheading:15105812-Female,
pubmed-meshheading:15105812-Humans,
pubmed-meshheading:15105812-Laminin,
pubmed-meshheading:15105812-Male,
pubmed-meshheading:15105812-Multivariate Analysis,
pubmed-meshheading:15105812-Prognosis,
pubmed-meshheading:15105812-Survival Analysis,
pubmed-meshheading:15105812-Survival Rate,
pubmed-meshheading:15105812-Time Factors
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pubmed:year |
2004
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pubmed:articleTitle |
Aberrant expression of laminin gamma 2 chain and its prognostic significance in intrahepatic cholangiocarcinoma according to growth morphology.
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pubmed:affiliation |
Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka Japan. saishima@surgpath.med.kyushu-u.ac.jp
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pubmed:publicationType |
Journal Article
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