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The cellular hierarchy of acute myeloid leukemia informs personalized treatment

GSE272681 Homo sapiens Expression profiling by high throughput sequencing 108 samples Submitted 2024/07/20 Platform GPL24676
Summary
Acute myeloid leukemia (AML) is characterized by malignant myeloid precursors that span a cellular hierarchy from dedifferentiated leukemic stem cells to mature blasts. While the diagnostic and prognostic importance of AML blast maturation is increasingly recognized, personalized therapies are currently not tailored to a patient’s individual makeup of this cellular hierarchy. In this study, we use multiplexed image-based ex vivo drug screening (pharmacoscopy) to systematically quantify the drug sensitivity across the cellular hierarchy of AML patients. We analyzed 174 prospective and longitudinal patient samples from 44 newly diagnosed AML patients, which indicated that differences in the AML hierarchy significantly identified poor responses to first-line therapy, outperforming European LeukemiaNet (ELN) criteria. Critically, drug response profiling across the AML hierarchy of each patient improved the accuracy of predicting patient response to first-line therapy (AUC 0.91), and revealed alternative individualized treatment options targeting the complete AML hierarchy of non-responding patients. We confirmed these findings in an independent cohort of 26 relapsed/refractory AML patients, for whom pan-hierarchy response profiling improved response predictions post hoc. Overall, our results quantify the clinical importance of therapeutically targeting the complete cellular hierarchy of newly diagnosed AML, and identify multiplexed image-based ex vivo drug screening to enable quantification and targeting of the AML maturation hierarchy for improved personalized treatment.
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Direct links to NCBI, no account and no request form: the whole study as GSE272681_RAW.tar, processed values as the series matrix, the supplementary file directory, and per-sample supplementary files for any of the 108 samples. Raw sequencing reads are also available from ENA.

Also filed as BioProject PRJNA1137956 and SRA study SRP521084. Searching any of these in the dataset finder brings you back here.

Study design
37 conditions, each sampled once — no replicated groups
Patient AML012, bonemarrow, time point 3, ×2 Patient AML013, blood, time point 3, ×2 Patient AML014, blood, time point 2, ×2

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