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- W4213249054 abstract "Abstract Targeted therapies exploiting selective vulnerabilities of malignant cells are highly desired for clinical applications. The cohesin protein complex comprises of RAD21, SMC3, SMC1A as well as a fourth subunit that consists of either STAG1 or STAG2 and is essential for proper chromosomal segregation during mitosis. STAG2 loss-of-function mutations are recurrent driver events in acute myeloid leukemia (AML) and appear relatively early during leukemogenesis. Studies in cell lines have shown that STAG2 deficient cells are uniquely vulnerable to STAG1 perturbation, and this vulnerability could thus be exploited to selectively eliminate STAG2 null AML cells. Here we show that partial perturbation of STAG1 is well tolerated by normal human hematopoietic stem cells and does not affect their functionality. By contrast, STAG1 knockdown is lethal to STAG2 null human HSCs by inducing major mitotic defects. Moreover, STAG1 knockdown induced synthetic lethality in primary human AML cells harboring a STAG2 mutation and completely abrogated leukemia progression in xenograft models. Overall, our study provides proof-of-concept demonstration of a synthetic lethal approach to selectively target primary human cancer cells with STAG2 mutations" @default.
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- W4213249054 date "2022-02-20" @default.
- W4213249054 modified "2023-10-16" @default.
- W4213249054 title "Inducing synthetic lethality for selective targeting of acute myeloid leukemia cells harboring <i>STAG2</i> mutations" @default.
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- W4213249054 doi "https://doi.org/10.1101/2022.02.18.479480" @default.
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