Immunophenotyping of myeloid leukemia in transgenic mouse model / 中华检验医学杂志

ABSTRACT

Objective To analyze the immunophenotyping characteristics of myeloid leukemia in transgenic mouse.Methods According to differential antigen expression profile on various hematopoietic lineages,flow cytometric analysis of bone marrow sample was performed on 5 myeloid leukemia mice and 10 healthy BL6 mice.Cell cycle analysis was further performed to assess cell proliferation.Results Expressions of Mac-1+ Gr-1+ and c-Kit+ in bone marrow cells in transgenic leukemia mice were(72.6±6.5)% and (20.5±4.8)%,and it were significantly higher than those in normal mice[(52.8±4.8)% and(2.1±0.3)%](t=6.66,12.66,P＜0.01).And expressions of B220+,CD3+,CD41+ and Ter119+ in leukemia mice were(2.7±1.1)%,(1.2±0.3)%,(1.2±0.6)% and(2.8±1.1)%,respectively.It were significantly lower than those in normal mice[(20.2±2.1)%.(6.6±1.3)%,(4.7±1.1)% and(10.6±1.2)%](t=-17.63,-8.69,-6.30,-12.28,P＜0.01).The percentages of S phase and G2/M phase in leukemia mice were(25.7±4.2)% and(21.1±4.2)%,respectively.It were significantly increased as compared with normal mice[(11.8±2.1)% and(8.9±1.8)%](t=8.59,7.98,P＜0.01).Conclusions Immunophenotyping of myeloid leukemia in transgenic mouse was characterized by hish expression of myeloid specific marker(Mac-1 and Gr-1)and hematopoietic stem/progenitors cells specific marker(c-Kit),and by low expression of B-lymphoid specific marker(B220),T-lymphoid(CD3),megakaryocyte(CD41)and Erythroid(Ter119).