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024 7 _ |a 10.1016/j.celrep.2023.113266
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100 1 _ |a Kandala, Sridhar
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245 _ _ |a Chronic chromosome instability induced by Plk1 results in immune suppression in breast cancer.
260 _ _ |a [New York, NY]
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520 _ _ |a Chromosome instability (CIN) contributes to resistance to therapies and tumor evolution. Although natural killer (NK) cells can eliminate cells with complex karyotypes, high-CIN human tumors have an immunosuppressive phenotype. To understand which CIN-associated molecular features alter immune recognition during tumor evolution, we overexpress Polo-like kinase 1 (Plk1) in a Her2+ breast cancer model. These high-CIN tumors activate a senescence-associated secretory phenotype (SASP), upregulate PD-L1 and CD206, and induce non-cell-autonomous nuclear factor κB (NF-κβ) signaling, facilitating immune evasion. Single-cell RNA sequencing from pre-neoplastic mammary glands unveiled the presence of Arg1+ macrophages, NK cells with reduced effector functions, and increased resting regulatory T cell infiltration. We further show that high PLK1-expressing human breast tumors display gene expression patterns associated with SASP, NF-κβ signaling, and immune suppression. These findings underscore the need to understand the immune landscape in CIN tumors to identify more effective therapies, potentially combining immune checkpoint or NF-κβ inhibitors with current treatments.
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650 _ 7 |a CP: Cancer
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650 _ 7 |a CP: Cell biology
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650 _ 7 |a Her2(+) breast cancer
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650 _ 7 |a NF-κβ signaling
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650 _ 7 |a chromosomal instability
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650 _ 7 |a immune evasion
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650 _ 7 |a senescence-associated secretory phenotype, SASP
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650 _ 7 |a single-cell sequencing
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700 1 _ |a Ramos, Maria
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700 1 _ |a Voith von Voithenberg, Lena
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700 1 _ |a Diaz-Jimenez, Alberto
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700 1 _ |a Chocarro, Sara
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700 1 _ |a Keding, Sigrun Johanna Elisabeth
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700 1 _ |a Brors, Benedikt
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700 1 _ |a Imbusch, Charles D
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700 1 _ |a Sotillo, Rocio
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773 _ _ |a 10.1016/j.celrep.2023.113266
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