One patient had a TP53 mutation. TP53 mutations (in AML) are associated with a (very) poor prognosis and resistance to standard treatments [1-5], with patients often showing limited response to even allogeneic stem cell transplantation [6,7].
Immunologically, it is a distinct subset, with increased PD-L1 and downregulation of miR-34a, as well as upregulation of MYC. Additionally, there is a reduction in CD8+ T-cells and CD4+ T-cells, along with an expansion of immunosuppressive Tregs, and MDSCs, contributing to broad immune evasion [8].
Refs:
1 https://www.nature.com/articles/leu2016263
2 https://www.nejm.org/doi/10.1056/NEJMoa1516192
3 https://ashpublications.org/blood/article/119/9/2114/30233/TP53-alterations-in-acute-myeloid-leukemia-with
4 https://jhoonline.biomedcentral.com/articles/10.1186/s13045-023-01417-5
5 https://www.mdpi.com/2072-6694/15/12/3210
6 https://onlinelibrary.wiley.com/doi/10.1002/ajh.26546
7 https://www.nature.com/articles/s41375-023-01847-7
8 https://ashpublications.org/blood/article/136/24/2812/461624/TP53-mutations-in-myelodysplastic-syndromes-and
Immunologically, it is a distinct subset, with increased PD-L1 and downregulation of miR-34a, as well as upregulation of MYC. Additionally, there is a reduction in CD8+ T-cells and CD4+ T-cells, along with an expansion of immunosuppressive Tregs, and MDSCs, contributing to broad immune evasion [8].
Refs:
1 https://www.nature.com/articles/leu2016263
2 https://www.nejm.org/doi/10.1056/NEJMoa1516192
3 https://ashpublications.org/blood/article/119/9/2114/30233/TP53-alterations-in-acute-myeloid-leukemia-with
4 https://jhoonline.biomedcentral.com/articles/10.1186/s13045-023-01417-5
5 https://www.mdpi.com/2072-6694/15/12/3210
6 https://onlinelibrary.wiley.com/doi/10.1002/ajh.26546
7 https://www.nature.com/articles/s41375-023-01847-7
8 https://ashpublications.org/blood/article/136/24/2812/461624/TP53-mutations-in-myelodysplastic-syndromes-and
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