Identification of CD4int progenitors in mouse fetal spleen, a source of resident lymphoid cells. - Archive ouverte HAL Access content directly
Journal Articles Journal of Leukocyte Biology Year : 2008

Identification of CD4int progenitors in mouse fetal spleen, a source of resident lymphoid cells.

(1) , (1) , (1)
1

Abstract

Hematopoiesis occurs in different tissues during adult and fetal life. Splenic hematopoiesis arises in the fetal period until the first weeks of life. We have analyzed the hematopoietic progenitor content of the fetal spleen (FS) at the embryonic days 14.5-15.5. We first demonstrate that the hematopoietic content of the FS differs largely from its fetal liver (FL) counterpart. The difference mainly concerns the distribution of the different pool of progenitors, as most of the splenic progenitors are comprised in the lineage(-)Sca1(-)cKit(lo) contrary to the FL. We have divided the fetal hematopoietic pool into smaller fractions to enable characterization of the earliest lymphoid progenitors. Among the lymphoid progenitors that already represent a rare population, we were able to separate a population, respectively, enriched in B or T/NK progenitors. Lineage restriction of the different developmental intermediates was tested by clonal assays. We propose a model for fetal splenic hematopoietic progenitors and their distribution.

Dates and versions

pasteur-00336957 , version 1 (05-11-2008)

Identifiers

Cite

Guillaume E. Desanti, Ana Cumano, Rachel Golub. Identification of CD4int progenitors in mouse fetal spleen, a source of resident lymphoid cells.. Journal of Leukocyte Biology, 2008, 83 (5), pp.1145-54. ⟨10.1189/jlb.1107755⟩. ⟨pasteur-00336957⟩

Collections

PASTEUR
14 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More