The site of breast cancer metastases dictates their clonal composition and reversible transcriptomic profile.
Jean Berthelet, Verena C Wimmer, Holly J Whitfield, Antonin Serrano, Thomas Boudier, Stefano Mangiola, Michal Merdas, Farrah El-Saafin, David Baloyan, Jordan Wilcox, Steven Wilcox, Adam C Parslow, Anthony T Papenfuss, Belinda Yeo, Matthias Ernst, Bhupinder Pal, Robin L Anderson, Melissa J Davis, Kelly L Rogers, Frédéric Hollande, Delphine Merino
Author Information
Jean Berthelet: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. delphine.merino@onjcri.org.au jean.berthelet@onjcri.org.au. ORCID
Verena C Wimmer: Advanced Technology and Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia. ORCID
Holly J Whitfield: Department of Medical Biology, Faculty of Medicine, Dentistry, and Health Science, The University of Melbourne, Parkville, VIC 3010, Australia. ORCID
Antonin Serrano: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. ORCID
Thomas Boudier: Advanced Technology and Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia. ORCID
Stefano Mangiola: Department of Medical Biology, Faculty of Medicine, Dentistry, and Health Science, The University of Melbourne, Parkville, VIC 3010, Australia. ORCID
Michal Merdas: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. ORCID
Farrah El-Saafin: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. ORCID
David Baloyan: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia.
Jordan Wilcox: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. ORCID
Steven Wilcox: Advanced Technology and Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.
Adam C Parslow: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. ORCID
Anthony T Papenfuss: Department of Medical Biology, Faculty of Medicine, Dentistry, and Health Science, The University of Melbourne, Parkville, VIC 3010, Australia. ORCID
Belinda Yeo: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. ORCID
Matthias Ernst: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia.
Bhupinder Pal: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia.
Robin L Anderson: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia.
Melissa J Davis: Department of Medical Biology, Faculty of Medicine, Dentistry, and Health Science, The University of Melbourne, Parkville, VIC 3010, Australia. ORCID
Kelly L Rogers: Advanced Technology and Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia. ORCID
Frédéric Hollande: Department of Clinical Pathology, Faculty of Medicine, Dentistry, and Health Science, The University of Melbourne, Melbourne, VIC 3000, Australia. ORCID
Delphine Merino: Olivia Newton-John Cancer Research Institute, Heidelberg, VIC 3084, Australia. delphine.merino@onjcri.org.au jean.berthelet@onjcri.org.au. ORCID
Intratumoral heterogeneity is a driver of breast cancer progression, but the nature of the clonal interactive network involved in this process remains unclear. Here, we optimized the use of optical barcoding to visualize and characterize 31 cancer subclones in vivo. By mapping the clonal composition of thousands of metastases in two clinically relevant sites, the lungs and liver, we found that metastases were highly polyclonal in lungs but not in the liver. Furthermore, the transcriptome of the subclones varied according to their metastatic niche. We also identified a reversible niche-driven signature that was conserved in lung and liver metastases collected during patient autopsies. Among this signature, we found that the tumor necrosis factor-α pathway was up-regulated in lung compared to liver metastases, and inhibition of this pathway affected metastasis diversity. These results highlight that the cellular and molecular heterogeneity observed in metastases is largely dictated by the tumor microenvironment.