KDM5 Histone Demethylase Activity Links Cellular Transcriptomic Heterogeneity to Therapeutic Resistance.

KDM5 Histone Demethylase Activity Links Cellular Transcriptomic Heterogeneity to Therapeutic Resistance.
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DOI:
10.1016/j.ccell.2018.10.014
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发表时间:
2018-12-10
期刊:
影响因子:
50.3
通讯作者:
Polyak K
Polyak K
中科院分区:
医学1区
文献类型:
--
作者:
Hinohara K;Wu HJ;Vigneau S;McDonald TO;Igarashi KJ;Yamamoto KN;Madsen T;Fassl A;Egri SB;Papanastasiou M;Ding L;Peluffo G;Cohen O;Kales SC;Lal-Nag M;Rai G;Maloney DJ;Jadhav A;Simeonov A;Wagle N;Brown M;Meissner A;Sicinski P;Jaffe JD;Jeselsohn R;Gimelbrant AA;Michor F;Polyak K

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Members of the KDM5 histone H3 lysine 4 demethylase family are associated with therapeutic resistance, including endocrine resistance in breast cancer, but the underlying mechanism is poorly defined. Here we show that genetic deletion of KDM5A/B or inhibition of KDM5 activity increases sensitivity to anti-estrogens by modulating estrogen receptor (ER) signaling and by decreasing cellular transcriptomic heterogeneity. Higher KDM5B expression levels are associated with higher transcriptomic heterogeneity and poor prognosis in ER+ breast tumors. Single cell RNA-seq, cellular barcoding, and mathematical modeling demonstrate that endocrine-resistance is due to selection for pre-existing genetically distinct cells, while KDM5 inhibitor-resistance is acquired. Our findings highlight the importance of cellular phenotypic heterogeneity in therapeutic resistance and identify KDM5A/B as key regulators of this process.
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