Linked Life Data

1713565

Source:http://linkedlifedata.com/resource/pubmed/id/1713565

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-8-30
pubmed:abstractText
T lymphocyte-mediated cytolytic immune reactions are considered a major cause of hepatocyte injury in chronic viral and autoimmune hepatitis. To further investigate local immune responses, we studied the expression of lymphocyte antigens and cell-cell interaction molecules known to be involved in effector-target cell interactions by light and electron microscopy in liver biopsy specimens from patients with chronic viral and autoimmune hepatitis. CD8+ lymphocytes were found to be the predominant population of cells in the inflammatory infiltrate in chronic hepatitis B and non-A, non-B hepatitis. In contrast, CD4+ cells constituted a comparably higher proportion of cells and were more numerous than CD8+ cells in chronic autoimmune hepatitis. In both viral and autoimmune hepatitis, a substantial portion of lymphocytes expressed activation antigens such as T11/3 (CD2R) and IL-2-R (CD25). Lymphocyte function-associated antigen-3 (CD58), which mediates lymphocyte adhesion and activation and is the natural ligand of the CD2/T11 lymphocyte surface receptor, could be demonstrated on endothelial cells and hepatocytes. Hepatocellular lymphocyte function-associated antigen-3 expression in chronic hepatitis showed membranous and cytoplasmic staining of hepatocytes and had a positive correlation with the degree of inflammatory activity. These results suggest that effector-target interactions between hepatocytes and lymphocytes mediated by the lymphocyte function-associated antigen-3/CD2 pathway play a role in chronic inflammatory liver disease. Possible functional consequences of this interaction include enhancement of antigen-specific immune reactions and antigen-independent mechanisms of T cell activation, which may contribute considerably to the degree of inflammatory activity and tissue damage in chronic hepatitis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0270-9139
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
223-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Hepatocellular expression of lymphocyte function-associated antigen 3 in chronic hepatitis.
pubmed:affiliation
Institut für Pathologie, Johannes Gutenberg Universität, Mainz, Federal Republic of Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't