Antigenic phenotype of early intra-embryonic lymphoid progenitors in the chicken.
The stem cells for the definitive haematopoiesis are derived from intra-embryonic sources originally described in an avian model and later also in mammals. However, the molecular make-up of the early embryonic haematopoietic progenitors is not yet clearly defined. We have recently characterized the phenotype of prethymic intra-embryonic progenitors capable of thymic colonization. Here we studied the ontogeny of cell-surface antigens HEMCAM, alpha2beta1 integrin, thrombomucin, chL12 and c-kit and their co-expression on prethymic T-cell progenitors. The early intra-embryonic expression of avian B-cell antigen chB6 was also demonstrated on cells derived from the intra-embryonic areas. We suggest that in the chicken, embryonic B-cell progenitors segregate earlier than T-cell progenitors in the differentiation of multipotent haematopoietic stem cells to committed progenitors.[1]References
- Antigenic phenotype of early intra-embryonic lymphoid progenitors in the chicken. Lampisuo, M., Katevuo, K., Lassila, O. Scand. J. Immunol. (1998) [Pubmed]
Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenesOpen Access LicencePrivacy PolicyTerms of Useapsburg