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2D and 3D multiplexed subcellular profiling of nuclear instability in human cancer

Coy, S.; Cheng, B.; Lee, J. S.; Rashid, R.; Browning, L.; Xu, Y.; Chakrabarty, S. S.; Yapp, C.; Chan, S.; Tefft, J. B.; Spektor, A.; Ligon, K. L.; Baker, G. J.; Pellman, D.; Sorger, P. K.; Santagata, S.

2023-11-11 cancer biology
10.1101/2023.11.07.566063 bioRxiv
Show abstract

Nuclear atypia, including altered nuclear size, contour, and chromatin organization, is ubiquitous in cancer cells. Atypical primary nuclei and micronuclei can rupture during interphase; however, the frequency, causes, and consequences of nuclear rupture are unknown in most cancers. We demonstrate that nuclear envelope rupture is surprisingly common in many human cancers, particularly glioblastoma. Using highly-multiplexed 2D and super-resolution 3D-imaging of glioblastoma tissues and patient-derived xenografts and cells, we link primary nuclear rupture with reduced lamin A/C and micronuclear rupture with reduced lamin B1. Moreover, ruptured glioblastoma cells activate cGAS-STING-signaling involved in innate immunity. We observe that local patterning of cell states influences tumor spatial organization and is linked to both lamin expression and rupture frequency, with neural-progenitor-cell-like states exhibiting the lowest lamin A/C levels and greatest susceptibility to primary nuclear rupture. Our study reveals that nuclear instability is a core feature of cancer, and links nuclear integrity, cell state, and immune signaling.

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