Linked Life Data

1531995

Source:http://linkedlifedata.com/resource/pubmed/id/1531995

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1992-4-15
pubmed:abstractText
In a previous study, we raised a mAb (MTS 35) reacting with a plasma membrane Ag expressed on both cortical thymocytes and a subset of thymic medullary epithelial cells. In view of the shared expression of this molecule, we have defined it as thymic shared Ag-1 (TSA-1). Considering its selective reactivity with cortical, but not medullary thymocytes, the relevance of TSA-1 as a marker of immature T cells was investigated in detail in this study, using multicolor flow cytometric analysis. TSA-1 was found on all immature thymocyte subsets (CD3-4-8-, CD3-4+8-, CD3-4-8+, CD3-4+8+, CD3low4+8+). Conversely, CD3high4+8- and CD3high4-8+ thymocytes, early thymic migrants and peripheral T cells were TSA-1-. More refined gating and analysis of the transitional CD3intermediate/high4+8+ thymocytes, proposed candidates for negative selection, demonstrated that approximately one half were TSA-1-. In fact, there was a directly inverse relationship between TSA-1 and CD3 expression on thymocytes. In the periphery, TSA-1 was detected on B lymphocytes. TSA-1 is PI-linked and has a molecular mass of 17 kDa nonreduced, or 12 to 13 kDa reduced. Through cross-correlation analysis, this molecule was distinct from H-2K, PNA-R, CD5, CD11a/18, Thy-1, HSA, Ly6A/E, Ly6C, ThB, CD25, CD44. Hence TSA-1 appears to be a unique marker which exquisitely separates mature from immature thymocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
148
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2006-11
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Thymic shared antigen-1. A novel thymocyte marker discriminating immature from mature thymocyte subsets.
pubmed:affiliation
Department of Pathology and Immunology, Monash University Medical School, Melbourne, Victoria, Australia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't