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致癌驱动因素决定了急性髓系白血病的免疫控制。

Oncogenic drivers dictate immune control of acute myeloid leukemia.

机构信息

Cancer Program, QIMR Berghofer Medical Research Institute, Brisbane, 4006, Australia.

The University of Queensland, St Lucia, Brisbane, QLD, 4072, Australia.

出版信息

Nat Commun. 2023 Apr 14;14(1):2155. doi: 10.1038/s41467-023-37592-9.

Abstract

Acute myeloid leukemia (AML) is a genetically heterogeneous, aggressive hematological malignancy induced by distinct oncogenic driver mutations. The effect of specific AML oncogenes on immune activation or suppression is unclear. Here, we examine immune responses in genetically distinct models of AML and demonstrate that specific AML oncogenes dictate immunogenicity, the quality of immune response and immune escape through immunoediting. Specifically, expression of Nras alone is sufficient to drive a potent anti-leukemia response through increased MHC Class II expression that can be overcome with increased expression of Myc. These data have important implications for the design and implementation of personalized immunotherapies for patients with AML.

摘要

急性髓系白血病(AML)是一种遗传异质性的侵袭性血液系统恶性肿瘤,由不同的致癌驱动突变引起。特定的 AML 癌基因对免疫激活或抑制的影响尚不清楚。在这里,我们研究了遗传上不同的 AML 模型中的免疫反应,并证明特定的 AML 癌基因通过免疫编辑决定免疫原性、免疫反应的质量和免疫逃逸。具体来说,Nras 的表达本身足以通过增加 MHC Ⅱ类的表达来驱动强烈的抗白血病反应,而 Myc 的高表达可以克服这种反应。这些数据对设计和实施 AML 患者的个性化免疫疗法具有重要意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2be0/10104832/bae3c44aa92f/41467_2023_37592_Fig1_HTML.jpg

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