First Author | Mansson R | Year | 2010 |
Journal | Blood | Volume | 115 |
Issue | 13 | Pages | 2601-9 |
PubMed ID | 19996414 | Mgi Jnum | J:160803 |
Mgi Id | MGI:4455120 | Doi | 10.1182/blood-2009-08-236398 |
Citation | Mansson R, et al. (2010) Single-cell analysis of the common lymphoid progenitor compartment reveals functional and molecular heterogeneity. Blood 115(13):2601-9 |
abstractText | To investigate molecular events involved in the regulation of lymphoid lineage commitment, we crossed lambda5 reporter transgenic mice to Rag1-GFP knockin mice. This allowed us to subfractionate common lymphoid progenitors and pre-pro-B (fraction A) cells into lambda5(-)Rag1(low), lambda5(-)Rag1(high), and lambda5(+)Rag1(high) cells. Clonal in vitro differentiation analysis demonstrated that Rag1(low) cells gave rise to B/T and NK cells. Rag1(high) cells displayed reduced NK-cell potential with preserved capacity to generate B- and T-lineage cells, whereas the lambda5(+) cells were B-lineage restricted. Ebf1 and Pax5 expression was largely confined to the Rag1(high) populations. These cells also expressed a higher level of the surface protein LY6D, providing an additional tool for the analysis of early lymphoid development. These data suggest that the classic common lymphoid progenitor compartment composes a mixture of cells with relatively restricted lineage potentials, thus opening new possibilities to investigate early hematopoiesis. |