Acta Med. 2008, 51: 37-41

Hematopoietic Recovery after Transplantation CD117+B220- (lacZ+) Bone Marrow Cells in Lethally Irradiated Mice

Miroslav Hodeka, Jiřina Vávrováb, Zuzana Šinkorováb, Jaroslav Mokrýc, Stanislav Filipa

aCharles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Oncology and Radiotherapy, Hradec Králové, Czech Republic
bUniversity of Defence Brno, Faculty of Military Health Sciences, Department of Radiobiology, Hradec Králové, Czech Republic
cCharles University in Prague, Faculty of Medicine and University Hospital Hradec Králové, Department of Histology and Embryology, Hradec Králové, Czech Republic

Received January 1, 2008
Accepted March 1, 2008

Experiments presented here were aimed at the description of hematopoiesis repair and in vivo homing of transplanted separated CD117+B220 bone marrow cells after whole-body lethal irradiation at LD 9Gy. ROSA 26 mice were used as donors of marrow cells for transplantation [B6;129S/Gt (ROSA)26Sor] and were tagged with lacZ gene, and F2 hybrid mice [B6129SF2/J] were used as recipients of bone marrow transplanted cells. Hematopoiesis repair was provided by transplantation, both suspension of whole bone marrow cells (5x106) and isolated CD117+B220 cells (5x104). Mice survived up to thirty days after irradiation. We demonstrated that transplantation of suspension of whole bone marrow cells led to faster recovery of CFU-GM (Granulocyte-macrophage colony forming units) in bone marrow and in the spleen too. It is not clear what the share of residential and transplanted cells is in the repair process. Our results demonstrate that sufficient hematopoietic repair occurs after transplantation of CD117+B220 (lacZ+) in lethally irradiated mice, and the difference in CFU-GM numbers in the bone marrow and spleen found on day 8 posttransplant has no influence on the survival of lethally irradiated mice (30 days follow-up).


This work has been supported by Research project MZO 00179906 and MSM 0021620820 from the Ministry of Education Youth and Sport of the Czech Republic.


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