Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1988-2-20
|
pubmed:abstractText |
Sequential appearance of the expression of T cell antigen receptor genes was investigated in the thymus of irradiated mice at the early stage after transplantation of Thy-1 congeneic H-2 compatible allogeneic bone marrow cells. The first cells to repopulate the thymus on day 7 after bone marrow transplantation were intrathymic radioresistant T cell precursors, which expanded mainly to CD4+CD8+ host-type thymocytes by day 14. A high level of gamma gene expression but a much reduced level of alpha and beta gene expression were detected in the host-type thymocytes on day 7. During regeneration of these cells, gamma-chain messages fell to low level and alpha and beta mRNA levels increased. The thymus of the recipients began to be repopulated by donor-derived T cells about 2 wk after bone marrow transplantation and was almost completely replaced by the third week. An ordered expression of gamma then beta and alpha-chain gene transcript was also observed in the donor-type thymocytes at the early stage after bone marrow transplantation. The use of thymocytes at early stage in whole-body irradiated bone marrow chimera provides a pertinent source for investigating the molecular mechanism of T cell differentiation in adult thymus.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
AIM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0022-1767
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
140
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
384-7
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:3275718-Animals,
pubmed-meshheading:3275718-Bone Marrow Transplantation,
pubmed-meshheading:3275718-Gene Expression Regulation,
pubmed-meshheading:3275718-Mice,
pubmed-meshheading:3275718-Mice, Inbred AKR,
pubmed-meshheading:3275718-Mice, Inbred CBA,
pubmed-meshheading:3275718-RNA, Messenger,
pubmed-meshheading:3275718-Radiation Chimera,
pubmed-meshheading:3275718-Receptors, Antigen, T-Cell,
pubmed-meshheading:3275718-Spleen,
pubmed-meshheading:3275718-T-Lymphocytes,
pubmed-meshheading:3275718-Thymus Gland,
pubmed-meshheading:3275718-Whole-Body Irradiation
|
pubmed:year |
1988
|
pubmed:articleTitle |
Expression of T cell antigen receptor genes in the thymus of irradiated mice after bone marrow transplantation.
|
pubmed:affiliation |
Department of Immunology, Kyushu University, Fukuoka, Japan.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|