Department of Haematology, The First Affiliated Hospital of Bengbu Medical University, Bengbu, People's Republic of China.
Anhui Province Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Bengbu, People's Republic of China.
Hematology. 2024 Dec;29(1):2346965. doi: 10.1080/16078454.2024.2346965. Epub 2024 Apr 30.
BACKGROUND: This study aims to investigate the correlation between NK and NKT cell proportion disparities and prognosis in patients with acute myeloid leukemia (AML). METHODS: Forty-four cases of acute myeloid leukemia patients were selected, and flow cytometry was utilized to evaluate the expression of bone marrow NK and NKT cells. Next-generation sequencing technology was employed to detect genetic mutations in these 44 AML patients, and the rates of first induction remission and overall survival were recorded. Comparisons were made to analyze the respective differences in NK and NKT cell proportions among AML patients with various genetic mutations and risk stratifications. RESULTS: The FLT-3-ITD+ group exhibited a significant increase in the proportion of NK cells compared to the normal control group and FLT3-ITD+/NPM1+ group, whereas the proportion of NKT cells was significantly decreased. Additionally, the CEBPA+ group showed an increased proportion of NKT cells compared to the TP53+ group and ASXL1+ group. The high-risk group had a higher proportion of NK cells than the intermediate-risk group, while the proportion of NKT cells was lower in the high-risk group compared to the intermediate-risk group.Patients achieving first induction remission displayed a higher proportion of NKT cells at initial diagnosis compared to those who did not achieve remission. The distribution of NK cells show significant differences among AML patients in different survival periods. CONCLUSION: This results implies that distinct genetic mutations may play a role not only in tumor initiation but also in shaping the tumor microenvironment, consequently impacting prognosis.
背景:本研究旨在探讨自然杀伤(NK)和自然杀伤 T(NKT)细胞比例差异与急性髓系白血病(AML)患者预后的相关性。
方法:选取 44 例急性髓系白血病患者,采用流式细胞术检测骨髓 NK 和 NKT 细胞的表达。运用下一代测序技术检测这 44 例 AML 患者的基因突变情况,记录首次诱导缓解率和总生存率。分析比较不同基因突变和危险分层的 AML 患者 NK 和 NKT 细胞比例的差异。
结果:FLT-3-ITD+组患者 NK 细胞比例明显高于正常对照组和 FLT3-ITD+/NPM1+组,而 NKT 细胞比例明显降低。此外,CEBPA+组患者 NKT 细胞比例明显高于 TP53+组和 ASXL1+组。高危组 NK 细胞比例高于中危组,而高危组 NKT 细胞比例低于中危组。首次诱导缓解的患者初诊时 NKT 细胞比例高于未缓解的患者。不同生存时间的 AML 患者 NK 细胞的分布差异有统计学意义。
结论:不同的基因突变不仅可能在肿瘤发生中起作用,而且可能在塑造肿瘤微环境中起作用,从而影响预后。
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