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Fibrocytes boost tumor-supportive phenotypic switches in the lung cancer niche via the endothelin system

MPS-Authors
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Zheng,  Xiang
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

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Nenzel,  Alina
Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons228744

Turkowski,  Kati
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons224128

Guenther,  Stefan
Cardiac Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons248827

Nikam,  Vandana S.
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons224338

Valasarajan,  Chanil
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons224334

Seeger,  Werner
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons224324

Pullamsetti,  Soni Savai
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

/persons/resource/persons224330

Savai,  Rajkumar
Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Max Planck Society;

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Citation

Weigert, A., Zheng, X., Nenzel, A., Turkowski, K., Guenther, S., Strack, E., et al. (2022). Fibrocytes boost tumor-supportive phenotypic switches in the lung cancer niche via the endothelin system. NATURE COMMUNICATIONS, 13(1): 6078. doi:10.1038/s41467-022-33458-8.


Cite as: https://hdl.handle.net/21.11116/0000-000B-7793-9
Abstract
Fibrocytes are bone marrow-derived monocytic cells implicated in wound healing. Here, we identify their role in lung cancer progression/ metastasis. Selective manipulation of fibrocytes in mouse lung tumor models documents the central role of fibrocytes in boosting niche features and enhancing metastasis. Importantly, lung cancer patients show increased number of circulating fibrocytes and marked fibrocyte accumulation in the cancer niche. Using double and triple co-culture systems with human lung cancer cells, fibrocytes, macrophages and endothelial cells, we substantiate the central features of cancer-supporting niche: enhanced cancer cell proliferation and migration, macrophage activation, augmented endothelial cell sprouting and fibrocyte maturation. Upregulation of endothelin and its receptors are noted, and dual endothelin receptor blockade suppresses all cancer-supportive phenotypic alterations via acting on fibrocyte interaction with the cancer niche. We thus provide evidence for a crucial role of fibrocytes in lung cancer progression and metastasis, suggesting targets for treatment strategies.
Fibrocytes are monocyte-derived cells implicated in wound healing. Here, the authors utilise single cell RNA-seq, genetic ablation and multiplexed imaging to identify a fibrocyte population in lung cancer models, and use human lung cancer coculture systems to highlight their potential to modulate microenvironmental niche and sensitivity to endothelin blockade.