Effect Of Decitabine And Thalidomide On The Immunological Effect And Bone Marrow Mesenchymal Stem Cells Of Patients With Myelodysplastic Syndrome

Objective: This study intended to investigate the therapeutic effect of decitabine and thalidomide on myelodysplastic syndrome (MDS), immunological effect and effective mesenchymal stem cells (MSCs). Methods: Altogether 62 patients with MDS diagnosed in our hospital were selected. Patients who received 5-day treatment mainly and received decitabine from the 1st day to the 5th day were collected as group A (A), while patients who received thalidomide 1st to 5th day as in group A were collected as group B (B). The immunologic effects, blood and bone marrow index levels, clinical effects and adverse reactions of group A and group B before and after intervention were observed. Results: Th17 in the two groups after intervention were evidently lower than that before intervention, and the decrease of Th17 cells in group B after intervention was more obvious than that in group A (P<0.001). Th22 cells in the two groups after intervention were evidently down-regulated compared with those before intervention, and the down-regulation of Th17 cells in group B after intervention was more obvious than that in group A (P<0.001). However, compared with group A, the levels of CD3+, CD4+, CD4+/CD8+ in serum of group B increased more obviously and CD8+ decreased more obviously after intervention. The white blood cell count of group B after intervention was evidently higher than that of group A (P<0.001). The hemoglobin concentration after intervention in group B was evidently higher than that in group A (P<0.001). The platelet count after intervention in group A was evidently higher than that in group B (P<0.001). The total effective rate in group B was evidently higher than that in group A (P<0.05). Conclusion: The combination of decitabine and thalidomide has a better regulatory role in the immunological mechanism and bone marrow mesenchymal stem cells of patients with MDS than the single decitabine therapy on the premise of ensuring clinical efficacy.