RESUMO
BACKGROUND: Increased expression of MRP 1 in AML patients results in the efflux of drugs from the cells, preventing the patient from achieving remission or potentially leading to relapse. Several studies have demonstrated that early identification of ABC transporter may yield favorable outcomes. AIMS AND OBJECTIVES: The objectives of the study were to investigate the correlation between MRP 1 gene expression and MRP 1 protein levels and the response to remission induction in AML patients. METHOD: A total of 40 AML patients were recruited from March 2021 to June 2022. Peripheral blood was collected in two tubes (yellow and purple top) to assess the MRP 1 gene and protein. For MRP 1 gene assessment, RNA was isolated from blood samples, cDNA was prepared, and qRT-PCR was performed to analyze gene expression. The relationship between the gene and complete remission was determined. Identification of MRP 1 protein was conducted using ELISA, and the relationship between protein levels and complete remission (CR) was explored. RESULTS: Most of the patients were aged between 25 and 39 years, encompassing both males and females. This study observed a clinical correlation between MRP 1 gene expression and complete remission. The findings revealed that 69.2 percent of patients with high gene expression failed to achieve complete remission, whereas the analysis of MRP 1 protein in relation to complete remission showed no statistical significance. The MRP1 gene showed high expression (66.7%) in patients with FLT3 mutation, whereas low expression of MRP1 was associated with a high occurrence (60%) of NMP1 mutation. CONCLUSION: Further comprehensive multicenter studies with larger sample sizes are required to validate the findings of this study. It is recommended to pinpoint the mechanism and regulation of MRP 1 and its interaction with other molecular pathways.