| First Author | Tzeng YS | Year | 2011 |
| Journal | Blood | Volume | 117 |
| Issue | 2 | Pages | 429-39 |
| PubMed ID | 20833981 | Mgi Jnum | J:168434 |
| Mgi Id | MGI:4888196 | Doi | 10.1182/blood-2010-01-266833 |
| Citation | Tzeng YS, et al. (2011) Loss of Cxcl12/Sdf-1 in adult mice decreases the quiescent state of hematopoietic stem/progenitor cells and alters the pattern of hematopoietic regeneration after myelosuppression. Blood 117(2):429-39 |
| abstractText | The C-X-C-type chemokine Cxcl12, also known as stromal cell-derived factor-1, plays a critical role in hematopoiesis during fetal development. However, the functional requirement of Cxcl12 in the adult hematopoietic stem/progenitor cell (HSPC) regulation was still unclear. In this report, we developed a murine Cxcl12 conditional deletion model in which the target gene can be deleted at the adult stage. We found that loss of stroma-secreted Cxcl12 in the adult led to expansion of the HSPC population as well as a reduction in long-term quiescent stem cells. In Cxcl12-deficient bone marrow, HSPCs were absent along the endosteal surface, and blood cell regeneration occurred predominantly in the perisinusoidal space after 5-fluorouracil myelosuppression challenge. Our results indicate that Cxcl12 is required for HSPC homeostasis regulation and is an important factor for osteoblastic niche organization in adult stage bone marrow. |
