Epigenomic State Transitions Characterize Tumor Progression in Mouse Lung Adenocarcinoma.

Epigenomic State Transitions Characterize Tumor Progression in Mouse Lung Adenocarcinoma.
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DOI:
10.1016/j.ccell.2020.06.006
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发表时间:
2020-08-10
期刊:
影响因子:
50.3
通讯作者:
Jacks T
Jacks T
中科院分区:
医学1区
文献类型:
--
作者:
LaFave LM;Kartha VK;Ma S;Meli K;Del Priore I;Lareau C;Naranjo S;Westcott PMK;Duarte FM;Sankar V;Chiang Z;Brack A;Law T;Hauck H;Okimoto A;Regev A;Buenrostro JD;Jacks T

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Regulatory networks that maintain functional, differentiated cell states are often dysregulated in tumor development. Here, we use single-cell epigenomics to profile chromatin state transitions in a mouse model of lung adenocarcinoma (LUAD). We identify an epigenomic continuum representing loss of cellular identity and progression towards a metastatic state. We define co-accessible regulatory programs and infer key activating and repressive chromatin regulators of these cell states. Among these co-accessibility programs, we identify a pre-metastatic transition, characterized by activation of RUNX transcription factors, which mediates extracellular matrix remodeling to promote metastasis and is predictive of survival across human LUAD patients. Together, these results demonstrate the power of single-cell epigenomics to identify regulatory programs to uncover mechanisms and key biomarkers of tumor progression.
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