Non-cell-autonomous cancer progression from chromosomal instability
- Nature. 2023 Aug;620(7976):1080-1088. doi: 10.1038/s41586-023-06464-z.
- 1. Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- 2. Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- 3. Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA.
- 4. Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA.
- 5. Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA.
- 6. Bioinformatics Facility, Institute of Biotechnology, Cornell University, Ithaca, NY, USA.
- 7. Volastra Therapeutics Inc., New York, NY, USA.
- 8. Department of Oncology, Medical Sciences Division, University of Oxford, Oxford, UK.
- 9. Columbia Center for Translational Immunology, New York, NY, USA.
- 10. Division of Hematology and Oncology, Columbia University Medical Center, New York, NY, USA.
- 11. Department of Pathology, Harvard Medical School, Boston, MA, USA.
- 12. Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- 13. Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- 14. Department of Physiology, Biophysics, and Systems Biology, Weill Cornell Medicine, New York, NY, USA. [email protected].
- 15. Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA. [email protected].
- 16. Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, USA. [email protected].
- 17. Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA. [email protected].
- 18. Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA. [email protected].
- # Contributed equally.
Chromosomal instability (CIN) is a driver of Cancer metastasis1-4, yet the extent to which this effect depends on the immune system remains unknown. Using ContactTracing-a newly developed, validated and benchmarked tool to infer the nature and conditional dependence of cell-cell interactions from single-cell transcriptomic data-we show that CIN-induced chronic activation of the cGAS-STING pathway promotes downstream signal re-wiring in Cancer cells, leading to a pro-metastatic tumour microenvironment. This re-wiring is manifested by type I interferon tachyphylaxis selectively downstream of STING and a corresponding increase in Cancer cell-derived endoplasmic reticulum (ER) stress response. Reversal of CIN, depletion of Cancer cell STING or inhibition of ER stress response signalling abrogates CIN-dependent effects on the tumour microenvironment and suppresses metastasis in immune competent, but not severely immune compromised, settings. Treatment with STING inhibitors reduces CIN-driven metastasis in Melanoma, breast and colorectal cancers in a manner dependent on tumour cell-intrinsic STING. Finally, we show that CIN and pervasive cGAS activation in micronuclei are associated with ER stress signalling, immune suppression and metastasis in human Triple-Negative Breast Cancer, highlighting a viable strategy to identify and therapeutically intervene in tumours spurred by CIN-induced inflammation.