Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma
Abstract Background Radiographically, ground-glass nodules (GGN) and part-solid nodules (PSN) in lung adenocarcinoma (LUAD) have significant heterogeneity in their clinical manifestations, biological characteristics, and prognosis. This study aimed to explore the heterogeneity of LUAD in different r...
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BMC
2024-11-01
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| Series: | Molecular Cancer |
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| Online Access: | https://doi.org/10.1186/s12943-024-02177-7 |
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| author | Yi-Feng Ren Qiong Ma Xiao Zeng Chun-Xia Huang Jia-Li Ren Fang Li Jia-Jing Tong Jia-Wei He Yang Zhong Shi-Yan Tan Hua Jiang Long-Fei Zhang Heng-Zhou Lai Ping Xiao Xiang Zhuang Peng Wu Li-Ting You Wei Shi Xi Fu Chuan Zheng Feng-Ming You |
| author_facet | Yi-Feng Ren Qiong Ma Xiao Zeng Chun-Xia Huang Jia-Li Ren Fang Li Jia-Jing Tong Jia-Wei He Yang Zhong Shi-Yan Tan Hua Jiang Long-Fei Zhang Heng-Zhou Lai Ping Xiao Xiang Zhuang Peng Wu Li-Ting You Wei Shi Xi Fu Chuan Zheng Feng-Ming You |
| author_sort | Yi-Feng Ren |
| collection | DOAJ |
| description | Abstract Background Radiographically, ground-glass nodules (GGN) and part-solid nodules (PSN) in lung adenocarcinoma (LUAD) have significant heterogeneity in their clinical manifestations, biological characteristics, and prognosis. This study aimed to explore the heterogeneity of LUAD in different radiological phenotypes and associated factors influencing tumor evolution. Methods We performed single-cell RNA sequencing (scRNA-seq) on tumor tissues from eight and seven cases of GGN– and PSN–LUAD, respectively, at different disease stages, including minimally invasive adenocarcinoma (MIA), invasive adenocarcinoma (IAC), and metastatic lung cancer (MLC). Additionally, we analyzed adjacent normal tissues from four cases. Immunohistochemistry, multiplex immunofluorescence, and external scRNA-seq data were employed to confirm the expression of signature genes as well as the distribution patterns of CXCL9 + TAMs and TREM2 + TAMs. A LUAD mouse model was generated using gene editing, organoid culture, and orthotopic transplantation techniques, and comprehensive analyses such as histopathology, RNA sequencing, and Western blotting were performed to validate key pathways. Results Diverse cellular compositions were observed in the tumor microenvironment (TME) during GGN– and PSN–LUAD invasion and metastasis. Notably, CXCL9 + and TREM2 + tumor-associated macrophages (TAMs) exhibited the most significant enrichment changes. It was found that GGN–LUAD exhibited a stronger immune response than PSN–LUAD, with increased interaction between CXCL9 + TAMs and CD8 + tissue-resident memory T cells during invasion stage (MIA–IAC). Conversely, greater interactions between TREM2 + TAMs and tumor cells were observed in PSN–LUAD during the MLC stage. Additionally, TREM2 + TAMs were found to differentiate into TREM2 + /SPP1 + and TREM2 + /SPP1– TAMs at different stages, which promotes tumor progression. This study also emphasizes that during the transdifferentiation process of GGN– and PSN–LUAD, IFN-γ activates the STAT1 signaling pathway to regulate the activation of CXCL9 + TAMs, and further recruiting CD8 + Trm cells and activating T cells through MHC class I antigen presentation. The role of the IFN-γ/STAT1 pathway in the occurrence and development of LUAD was further validated by animal experiments. Conclusions Our findings offer a potential therapeutic strategy to maintain a dynamic balance within the TME and improve the immunotherapy efficacy by modulating the relative proportions and functional states of CXCL9 + TAMs and TREM2 + TAMs. |
| format | Article |
| id | doaj-art-0c9c76b1f5bb4deabb51d87f6090b59d |
| institution | Kabale University |
| issn | 1476-4598 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | BMC |
| record_format | Article |
| series | Molecular Cancer |
| spelling | doaj-art-0c9c76b1f5bb4deabb51d87f6090b59d2024-11-24T12:13:47ZengBMCMolecular Cancer1476-45982024-11-0123112310.1186/s12943-024-02177-7Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinomaYi-Feng Ren0Qiong Ma1Xiao Zeng2Chun-Xia Huang3Jia-Li Ren4Fang Li5Jia-Jing Tong6Jia-Wei He7Yang Zhong8Shi-Yan Tan9Hua Jiang10Long-Fei Zhang11Heng-Zhou Lai12Ping Xiao13Xiang Zhuang14Peng Wu15Li-Ting You16Wei Shi17Xi Fu18Chuan Zheng19Feng-Ming You20Hospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineLC-Bio Technologies (Hangzhou) CO., LTDHospital of Chengdu University of Traditional Chinese MedicineLC-Bio Technologies (Hangzhou) CO., LTDHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineDepartment of Thoracic Surgery, School of Medicine, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of ChinaDepartment of Thoracic Surgery, School of Medicine, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of ChinaLC-Bio Technologies (Hangzhou) CO., LTDTCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese MedicineDepartment of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan UniversityHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineHospital of Chengdu University of Traditional Chinese MedicineAbstract Background Radiographically, ground-glass nodules (GGN) and part-solid nodules (PSN) in lung adenocarcinoma (LUAD) have significant heterogeneity in their clinical manifestations, biological characteristics, and prognosis. This study aimed to explore the heterogeneity of LUAD in different radiological phenotypes and associated factors influencing tumor evolution. Methods We performed single-cell RNA sequencing (scRNA-seq) on tumor tissues from eight and seven cases of GGN– and PSN–LUAD, respectively, at different disease stages, including minimally invasive adenocarcinoma (MIA), invasive adenocarcinoma (IAC), and metastatic lung cancer (MLC). Additionally, we analyzed adjacent normal tissues from four cases. Immunohistochemistry, multiplex immunofluorescence, and external scRNA-seq data were employed to confirm the expression of signature genes as well as the distribution patterns of CXCL9 + TAMs and TREM2 + TAMs. A LUAD mouse model was generated using gene editing, organoid culture, and orthotopic transplantation techniques, and comprehensive analyses such as histopathology, RNA sequencing, and Western blotting were performed to validate key pathways. Results Diverse cellular compositions were observed in the tumor microenvironment (TME) during GGN– and PSN–LUAD invasion and metastasis. Notably, CXCL9 + and TREM2 + tumor-associated macrophages (TAMs) exhibited the most significant enrichment changes. It was found that GGN–LUAD exhibited a stronger immune response than PSN–LUAD, with increased interaction between CXCL9 + TAMs and CD8 + tissue-resident memory T cells during invasion stage (MIA–IAC). Conversely, greater interactions between TREM2 + TAMs and tumor cells were observed in PSN–LUAD during the MLC stage. Additionally, TREM2 + TAMs were found to differentiate into TREM2 + /SPP1 + and TREM2 + /SPP1– TAMs at different stages, which promotes tumor progression. This study also emphasizes that during the transdifferentiation process of GGN– and PSN–LUAD, IFN-γ activates the STAT1 signaling pathway to regulate the activation of CXCL9 + TAMs, and further recruiting CD8 + Trm cells and activating T cells through MHC class I antigen presentation. The role of the IFN-γ/STAT1 pathway in the occurrence and development of LUAD was further validated by animal experiments. Conclusions Our findings offer a potential therapeutic strategy to maintain a dynamic balance within the TME and improve the immunotherapy efficacy by modulating the relative proportions and functional states of CXCL9 + TAMs and TREM2 + TAMs.https://doi.org/10.1186/s12943-024-02177-7Lung adenocarcinomaPulmonary noduleTumor microenvironmentSingle-cell RNA sequencingCXCL9TREM2 |
| spellingShingle | Yi-Feng Ren Qiong Ma Xiao Zeng Chun-Xia Huang Jia-Li Ren Fang Li Jia-Jing Tong Jia-Wei He Yang Zhong Shi-Yan Tan Hua Jiang Long-Fei Zhang Heng-Zhou Lai Ping Xiao Xiang Zhuang Peng Wu Li-Ting You Wei Shi Xi Fu Chuan Zheng Feng-Ming You Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma Molecular Cancer Lung adenocarcinoma Pulmonary nodule Tumor microenvironment Single-cell RNA sequencing CXCL9 TREM2 |
| title | Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma |
| title_full | Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma |
| title_fullStr | Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma |
| title_full_unstemmed | Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma |
| title_short | Single-cell RNA sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground-glass nodules and part-solid nodules in lung adenocarcinoma |
| title_sort | single cell rna sequencing reveals immune microenvironment niche transitions during the invasive and metastatic processes of ground glass nodules and part solid nodules in lung adenocarcinoma |
| topic | Lung adenocarcinoma Pulmonary nodule Tumor microenvironment Single-cell RNA sequencing CXCL9 TREM2 |
| url | https://doi.org/10.1186/s12943-024-02177-7 |
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