Figure 5Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. (A) Effect of G-CSF and CoPP-induced mobilization in C57BL/6-Tg(UBC-GFP) 30Sch/J donor mice (mean + individual values, one-way Anova with Bonferroni post-test, n = 16 mice per group): Donor mice treated with CoPP had the highest number of mobilized granulocytes (i) and KLS cells (ii), compared to control or G-CSF-treated donor mice Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. Recipient mice which were transplanted with CoPP-mobilized PBMC had the highest number of WBC, PLT and the highest hematocrit values 2 weeks after PBMC transplantation, compared to G-CSF-mobilized and control PBMC recipients (mean + individual values, one-way Anova with Bonferroni post-test, NaCl: n = 8, G-CSF: n = 7, CoPP: n = 9 mice per group). Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. Recipient mice which were transplanted with CoPP-mobilized PBMC had the highest chimerism among CD45+ cells, granulocytes and B cells 2, 4 and 18 weeks after transplantation. Chimerism among T cells was the highest in recipients of G-CSF-mobilized PBMC 2 weeks after transplantation, but 18 weeks after transplantation it was the highest in CoPP-mobilized PBMC recipients (mean + SEM, two-way Anova with Bonferroni post-test, NaCl: n = 8, G-CSF: n = 7, CoPP: n = 9 mice per group). Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. The majority of primary recipients transplanted with G-CSF and CoPP-mobilized PBMC have detectable GFP chimerism among BM KLS cells. Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. Fraction of secondary recipient mice with chimerism in PB CD45+ cells exceeding 1% tends to be higher after CoPP-mobilized PBMC transplant than G-CSF-mobilized PBMC transplant. Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. PB chimerism in secondary recipients is higher in CoPP group than in the control group (mean + individual values, Kruskal-Wallis test with Dunn's post-test, NaCl: n = 7, G-CSF: n = 6, CoPP: n = 8 mice per group). Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. Percentage of secondary recipient mice with GFP chimerism in BM KLS (G) and KLS-(H) cells higher that 1% is similar in G-CSF and CoPP groups. Donor GFP+ mice were treated with NaCl, G-CSF or CoPP daily. At the 5th day of treatment we transplanted 5x106 of isolated PBMC to the lethally irradiated GFP- recipient mice, together with 105 GFP- BM-derived competitor cells. After 18 or 20 weeks we performed secondary transplantation of primary recipients' BM to lethally irradiated secondary recipients and followed the chimerism for additional 14 weeks. GFP chimerism in KLS (I) and KLS- (J) cells in the BM of secondary recipients (mean + individual values, Kruskal-Wallis test with Dunn's post-test, NaCl: n = 7, G-CSF: n = 6, CoPP: n = 8 mice per group).