We illustrate four use cases of ASHOP: (1) stratification of DUX4-rearranged B-cell leukemias into Early/Multipotent and Committed subgroups with distinct outcomes, (2) characterization of HOXA/HOXB expression patterns in acute myeloid leukemias, (3) correlating mutational burden with mismatch repair deficiency and mutational signatures, (4) investigation of TP53 alteration landscape. ASHOP is an open-access resource to inform genomic and transcriptomic data interpretation for hematologic malignancies, and will expand to support additional diseases and data modalities from the ASH community.
Our findings suggest that reduced STAG2 protein expression plays a relevant role in MDS pathogenesis. Immunohistochemical assessment of STAG2 may be incorporated into the clinical workflows as a potential diagnostic and prognostic biomarker, as well as indicate therapeutic targets, particularly in association with complex karyotypes and trisomy 8.