An epigenetic profile of early T-cell development from multipotent progenitors to committed T-cell descendants.
Eur J Immunol
; 44(4): 1181-93, 2014 Apr.
Article
em En
| MEDLINE
| ID: mdl-24374622
ABSTRACT
Cellular differentiation of the T-cell branch of the immune system begins with the HSC, which undergoes a series of stages characterized by progressive restriction in multipotency and acquisition of specific lineage identity At the molecular level, the restriction of cell potential, commitment, and differentiation to a specific lineage is achieved through the coordinated control of gene expression and epigenetic mechanisms. Here, we analyzed and compared the gene expression profiles and the genome-wide histone modification marks H3K4me3 (H3 lysine 4 trimethylation) and H3K27me3 (H3 lysine 27 trimethylation) in (i) in vitro propagated HSCs, (ii) in vitro generated and propagated pro-T cells derived from these stem cells, and (iii) double-positive thymocytes derived from these pro-T cells after injection into Rag-deficient mice. The combined analyses of the different datasets in this unique experimental system highlighted the importance of both transcriptional and epigenetic repression in shaping the early phases of T-cell development.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Linfócitos T
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Células-Tronco Multipotentes
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Epigênese Genética
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Epigenômica
Limite:
Animals
Idioma:
En
Revista:
Eur J Immunol
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Suíça