Spatial transcriptomics delineates molecular features and cellular plasticity in lung adenocarcinoma progression.

Spatial transcriptomics delineates molecular features and cellular plasticity in lung adenocarcinoma progression.
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空间转录组学描绘肺腺癌进展中的分子特征与细胞可塑性

DOI:
10.1038/s41421-023-00591-7
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发表时间:
2023-09-19
期刊:
影响因子:
33.5
通讯作者:
Wu, Nan
Wu, Nan
中科院分区:
生物学1区
文献类型:
--
作者:
Wang, Yan;Liu, Bing;Min, Qingjie;Yang, Xin;Yan, Shi;Ma, Yuanyuan;Li, Shaolei;Fan, Jiawen;Wang, Yaqi;Dong, Bin;Teng, Huajing;Lin, Dongmei;Zhan, Qimin;Wu, Nan

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惰性(鳞屑状)和侵袭性(微乳头状、实性和低分化腺泡)组织学亚型通常共存于肺腺癌(LUAD)的肿瘤组织中,但与不同亚型及其转变相关的分子特征仍然难以捉摸。在这里,我们结合空间转录组学和多重免疫组织化学来阐明 LUAD 不同组织学亚型的分子特征和细胞可塑性。我们描述了决定亚型进展的转录重编程和动态细胞信号传导,特别是缺氧诱导的调节网络。不同的组织学亚型在去分化状态下表现出异质性。此外,我们的结果表明,巨噬细胞是 LUAD 中最丰富的细胞类型,并识别出每种组织学亚型所特有的不同肿瘤相关巨噬细胞亚群,这可能有助于形成免疫抑制微环境。我们的结果提供了驱动 LUAD 亚型进展的分子谱的系统图谱,并证明了侵袭性肺腺癌的潜在新颖治疗策略和靶点。
Indolent (lepidic) and aggressive (micropapillary, solid, and poorly differentiated acinar) histologic subtypes often coexist within a tumor tissue of lung adenocarcinoma (LUAD), but the molecular features associated with different subtypes and their transitions remain elusive. Here, we combine spatial transcriptomics and multiplex immunohistochemistry to elucidate molecular characteristics and cellular plasticity of distinct histologic subtypes of LUAD. We delineate transcriptional reprogramming and dynamic cell signaling that determine subtype progression, especially hypoxia-induced regulatory network. Different histologic subtypes exhibit heterogeneity in dedifferentiation states. Additionally, our results show that macrophages are the most abundant cell type in LUAD, and identify different tumor-associated macrophage subpopulations that are unique to each histologic subtype, which might contribute to an immunosuppressive microenvironment. Our results provide a systematic landscape of molecular profiles that drive LUAD subtype progression, and demonstrate potentially novel therapeutic strategies and targets for invasive lung adenocarcinoma.
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