Linked Life Data

9440824

Source:http://linkedlifedata.com/resource/pubmed/id/9440824

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1998-2-18
pubmed:abstractText
The expression of gene products of the major histocompatibility complex (MHC) on the cell surface is known to play an important role in immunological responses. While some studies have reported the presence of MHC antigens on hepatocytes, information about specific, sensitive hepatocyte MHC antigen expression in various liver diseases is minimal. To investigate the expression of class I and class II MHC antigens on hepatocellular carcinoma (HCC) specimens, two-color flow cytometry was used to demonstrate MHC antigen expression on non-malignant and malignant hepatocytes using the hepatocyte-specific monoclonal antibody (MAb) 9B2 for selective gating and either MHC-specific W6/32 (class I) or Q5/13 (class II) MAb for MHC antigen detection. Non-malignant liver tissues demonstrated variable MHC antigen expression. Malignant hepatocytes isolated from resected HCC specimens as well as non-tumorous hepatocytes from these HCC specimens also disclosed various degrees of MHC antigen expression. Although we were not able to demonstrate a clear correlation between clinical outcome and MHC antigen expression in HCC, we conclude that the expression of MHC antigens on human hepatocytes and hepatoma cells can be accurately detected by flow cytometry using hepatocyte-specific MAb for selective gating and MHC-specific MAbs. Of note, two cases of non-malignant fetal liver tissues indicated that >95% of fetal hepatocytes expressed class I MHC antigens and <25% of fetal hepatocytes expressed class II MHC antigens. These findings may lead to further investigations into the progression of HCC cells or into the possible mechanisms of the hepatocellular carcinogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0196-4763
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
317-23
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Class I and class II major histocompatibility complex antigens expression on human hepatocytes and hepatoma cells: an approach with high sensitivity and specificity.
pubmed:affiliation
Department of Surgery, Veterans General Hospital, Taipei, Taiwan, Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't