Evaluation of mRNA Expressions of TOX and NR4As in CD8+ T cells in Acute Leukemia
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Background
Thymocyte selection-associated high mobility group box protein (TOX) and members of the nuclear receptor 4A (NR4A) are known as transcription factors involved in T cell exhaustion.Objective
To evaluate the mRNA expression of TOX and NR4A1-3 in CD8+ T cells in acute leukemia.Methods
Blood samples were obtained from 21 ALL and 6 AML patients as well as 20 control subjects. CD8+ T cells were isolated using MACS. Relative gene expression of TOX and NR4A1-3 was then evaluated using qRT-PCR.Results
Comparison of mRNA expression of TOX in CD8+ T cells showed no significant difference among the study groups (p>0.05), while the expression of NR4A1 was significantly lower in AML patients than in the control group (p=0.0006). Also, the expression of NR4A2 and NR4A3 was significantly lower in both ALL (p=0.0049 and p=0.0005, respectively) and AML (p=0.0019 and p=0.0055, respectively) patients.Conclusion
NR4As expressions were found to be lower in CD8+ T cells from patients with AML and ALL compared to controls, whereas the mRNA expression of TOX showed no significant difference. Although TOX and NR4As are associated with CD8+ T cell exhaustion in solid tumors, they might play different roles in acute leukemia, which requires further investigation.Keywords:
Leukemia , NR4A , T cell Exhaustion , TOX
Language:
English
Published:
Iranian journal of immunology, Volume:20 Issue: 4, Autumn 2023
Pages:
438 to 445
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