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| Item Type: | Preprint |
|---|---|
| Title: | A clinically relevant morpho-molecular classification of lung neuroendocrine tumours |
| Creators Name: | Sexton-Oates, Alexandra, Mathian, Emilie, Candeli, Noah, Lim, Yuliya, Voegele, Catherine, Di Genova, Alex, Mange, Laurane, Li, Zhaozhi, van Weert, Tijmen, Hillen, Lisa M., Blazquez-Encinas, Ricardo, Gonzalez-Perez, Abel, Morrison, Maike L., Lauricella, Eleonora, Mangiante, Lise, Bonheme, Lisa, Moonen, Laura, Absenger, Gudrun, Altmuller, Janine, Degletagne, Cyril, Brustugun, Odd Terje, Cahais, Vincent, Centonze, Giovanni, Chabrier, Amelie, Cuenin, Cyrille, Damiola, Francesca, de Montpreville, Vincent Thomas, Deleuze, Jean-Francois, Dingemans, Anne-Marie C., Fadel, Elie, Gadot, Nicolas, Ghantous, Akram, Graziano, Paolo, Hofman, Paul, Hofman, Veronique, Ibanez-Costa, Alejandro, Lacomme, Stephanie, Lopez-Bigas, Nuria, Lund-Iversen, Marius, Milione, Massimo, Muscarella, Lucia Anna, Pedraza-Arevalo, Sergio, Perrin, Corinne, Planchard, Gaetane, Popper, Helmut, Roz, Luca, Sparaneo, Angelo, Buikhuisen, Wieneke, Van den Berg, Jose, Tesselaar, Margot, Kim, Jaehee, Speel, Ernst-Jan M., Tabone-Eglinger, Severine, Walter, Thomas, Wright, Gavin, Castano, Justo P., Chalabreysse, Lara, Chen, Liming, Caux, Christophe, Volante, Marco, Girard, Nicolas, Vignaud, Jean-Michel, Conde, Esther, Mansuet-Lupo, Audrey, Brcic, Luka, Pelosi, Giuseppe, Papotti, Mauro, Lantuejoul, Sylvie, Derks, Jules, Dayton, Talya, Alcala, Nicolas, Foll, Matthieu and Fernandez-Cuesta, Lynnette |
| Abstract: | Lung neuroendocrine tumours (NETs, also known as carcinoids) are rapidly rising in incidence worldwide but have unknown aetiology and limited therapeutic options beyond surgery. We conducted multi‐omic analyses on over 300 lung NETs including whole‐genome sequencing (WGS), transcriptome profiling, methylation arrays, spatial RNA sequencing, and spatial proteomics. The integration of multi-omic data provides definitive proof of the existence of four strikingly different molecular groups that vary in patient characteristics, genomic and transcriptomic profiles, microenvironment, and morphology, as much as distinct diseases. Among these, we identify a new molecular group, enriched for highly aggressive supra‐carcinoids, that displays an immune‐rich microenvironment linked to tumour—macrophage crosstalk, and we uncover an undifferentiated cell population within supra-carcinoids, explaining their molecular and behavioural link to high-grade lung neuroendocrine carcinomas. Deep learning models accurately identified the Ca A1, Ca A2, and Ca B groups based on morphology alone, outperforming current histological criteria. The characteristic tumour microenvironment of supra-carcinoids and the validation of a panel of immunohistochemistry markers for the other three molecular groups demonstrates that these groups can be accurately identified based solely on morphological features, facilitating their implementation in the clinical setting. Our proposed morpho-molecular classification highlights group-specific therapeutic opportunities, including DLL3, FGFR, TERT, and BRAF inhibitors. Overall, our findings unify previously proposed molecular classifications and refine the lung cancer map by revealing novel tumour types and potential treatments, with significant implications for prognosis and treatment decision‐making. |
| Source: | medRxiv |
| Publisher: | Cold Spring Harbor Laboratory Press |
| Article Number: | 2025.07.18.25331556 |
| Date: | 18 July 2025 |
| Official Publication: | https://doi.org/10.1101/2025.07.18.25331556 |
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