Emergence of a High-Plasticity Cell State during Lung Cancer Evolution.

Emergence of a High-Plasticity Cell State during Lung Cancer Evolution.
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肺癌演化过程中高塑性细胞状态的出现。

DOI:
10.1016/j.ccell.2020.06.012
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发表时间:
2020-08-10
期刊:
影响因子:
50.3
通讯作者:
Tammela T
Tammela T
中科院分区:
医学1区
文献类型:
--
作者:
Marjanovic ND;Hofree M;Chan JE;Canner D;Wu K;Trakala M;Hartmann GG;Smith OC;Kim JY;Evans KV;Hudson A;Ashenberg O;Porter CBM;Bejnood A;Subramanian A;Pitter K;Yan Y;Delorey T;Phillips DR;Shah N;Chaudhary O;Tsankov A;Hollmann T;Rekhtman N;Massion PP;Poirier JT;Mazutis L;Li R;Lee JH;Amon A;Rudin CM;Jacks T;Regev A;Tammela T

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肿瘤从单细胞向恶性异质组织的演变仍然知之甚少。在这里,我们分析了七个阶段的基因工程小鼠肺肿瘤的单细胞转录组,从肿瘤前增生到腺癌。转录状态的多样性随着时间的推移而增加,并且在肿瘤和小鼠中可重复。癌细胞逐渐采用交替的谱系身份,计算预测通过共同的过渡,高可塑性细胞状态(HPCS)介导。因此,从小鼠肿瘤和人类患者来源的异种移植物中分离的HPCS细胞显示出高分化和增殖能力。HPCS计划与人类癌症的低生存率有关,并在小鼠中显示出化学耐药性。我们的研究揭示了肿瘤内异质性的核心原则,并激发了HPCS的治疗靶向性。
Tumor evolution from a single cell into a malignant, heterogeneous tissue remains poorly understood. Here, we profile single-cell transcriptomes of genetically engineered mouse lung tumors at seven stages, from pre-neoplastic hyperplasia to adenocarcinoma. The diversity of transcriptional states increases over time and is reproducible across tumors and mice. Cancer cells progressively adopt alternate lineage identities, computationally predicted to be mediated through a common transitional, high-plasticity cell state (HPCS). Accordingly, HPCS cells prospectively isolated from mouse tumors and human patient-derived xenografts display high capacity for differentiation and proliferation. The HPCS program is associated with poor survival across human cancers and demonstrates chemoresistance in mice. Our study reveals a central principle underpinning intra-tumoral heterogeneity and motivates therapeutic targeting of the HPCS.
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