Relationship between different subtypes of MDSC and tumor burden and predictive value of therapeutic effect in chronic myeloid leukemia patients
10.3969/j.issn.1000-484X.2025.07.005
- VernacularTitle:慢性粒细胞白血病患者中不同亚型MDSC与肿瘤负荷的相关性及疗效预测价值
- Author:
Zhongli HU
1
;
Yanli YANG
;
Jiajia LI
;
Shaojun PAN
Author Information
1. 蚌埠医科大学第一附属医院血液科,蚌埠 233003
- Publication Type:Journal Article
- Keywords:
Myeloid-derived suppressor cells;
Chronic myeloid leukemia;
BCR-ABL;
WT1;
Lymphocyte subpopulation
- From:
Chinese Journal of Immunology
2025;41(7):1566-1573
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate expression levels of various myeloid suppressor cells(MDSCs)in bone marrow of patients with chronic myeloid leukemia(CML),and the difference and correlation of expression levels of BCR-ABL fusion gene and WT1 in CML patients at different stages,and explore its clinical significance.To analyze and compare the distribution differences of various MDSCs in CML with different remission depths after treatment.Methods:Proportions of various MDSCs in 58 CML patients were de-tected by flow cytometry.Relative expressions of WT1 and BCR-ABL were detected by RQ-PCR.Iron deficiency anemia patients were served as control group,differences of the distribution of MDSCs in CML patients with different BCR-ABL expression,different WT1 expression,different CD34+cell numbers and different disease course,and expressions of various types of MDSC at 3,6,12 and 24 months after treatment in patients with chronic phase of CML were analyzed.At the same time,changes of cellular immune status in CML patients at different stages were detected,and correlations between the changes of lymphocyte subsets and MDSCs were compared.Results:Proportions of G-MDSC and e-MDSC in chronic phase of CML were significantly higher than that in normal control group(P<0.05).Proportions of G-MDSC and e-MDSC in CML patients in accelerated phase and blast crisis phase were significantly higher than that in CML patients in chronic phase(P<0.05).However,the difference in proportion of M-MDSC between accelerated phase of CML and chronic phase of CML had no statistical significance.Proportion of G-MDSC in CML patients was positively correlated with values of BCR-ABL,WT1 genes and proportion of CD34+cells(r=0.558 7,0.530 7,0.598 1),proportion of M-MDSC was positively correlated with values of BCR-ABL,WT1 genes and proportion of CD34+cells(r=0.132 1,0.144 6,0.157 8).Proportion of e-MDSC was positively correlated with values of BCR-ABL,WT1 genes and proportion of CD34+cells(r=0.604 3,0.620 7,0.625 9).G-MDSC was significantly lower in the best response group than that in warning/failure group at all stages of treatment.e-MDSC was differential in the best response and warning/failure groups at only 3 months of treatment.M-MDSC was not statistically significant in the best response and warning/failure groups at all stages of treatment.And only G-MDSC cell ratio was positively correlated with its BCR-ABL ratio(r=0.798 1).Per-centage of T lymphocyte in CML blast crisis phase was significantly lower than that in accelerated and chronic phases,while percentage of NK cells was higher.Only the proportion of G-MDSC was negatively correlated with the proportion of T lymphocyte(r=-0.815 2).Conclusion:Various MDSCs are positively correlated with BCR-ABL,WT1 gene and CD34+cells,and positively correlated with the tumor burden of CML patients,while the correlation of M-MDSC is weaker than that of G-MDSC and e-MDSC.With the remission of CML,G-MDSC decreases,while M-MDSC does not change.e-MDSC only shows differences in the early 3-month of treatment.Change of G-MDSC ratio may predict the effect of CML treatment.MDSCs can inhibit the proliferation of T lymphocyte,and inhibitory effect of G-MDSC is stronger than that of M-MDSC and e-MDSC.
