This research introduces the Mouse Cancer Culture Collection (MCCA), a massive repository of nearly 600 cell lines representing 46 distinct cancer types. By utilizing this resource, scientists identified that cancer evolution is a deterministic process shaped heavily by the specific tissue in which it originates. A key focus is the KRAS oncogene, where findings show that different organs require specific dosage levels of the mutation to trigger tumor growth or cellular reprogramming. The study further demonstrates that the CDKN2A tumor suppressor behaves differently across tissues due to varying epigenetic states, which explains why some organs are more resistant to cancer than others. Ultimately, these results provide a comprehensive framework for understanding the genomic trajectories of human disease through highly accurate mouse models.

References:

• Mueller S, de Andrade Krätzig N, Tschurtschenthaler M, et al. A disease model resource reveals core principles of tissue-specific cancer evolution[J]. Nature, 2026: 1-12.