Multi-omics analysis identifies intrinsic Trp53 driven metastatic breast cancer subtypes.

This study utilizes a somatic mouse model of Trp53R245W mutation to identify three distinct intrinsic metastatic breast cancer subtypes (stem-cell like, well-differentiated metabolically active, and immunosuppressed) characterized by unique transcriptomic profiles and genomic alterations, thereby elucidating potential therapeutic targets for this deadly disease.

McDaniel, J. M., Morrissey, R. L., Chau, G. P. + 7 more2026-02-18📄 cancer biology

Lung cancer-enriched p53 mutants occupy canonical p53 target genes without activating transcription, revealing a distinct loss-of-function behavior

This study reveals that lung cancer-enriched p53 mutants (specifically V157F and R158L) uniquely retain the ability to bind canonical target genes but fail to activate transcription, representing a distinct loss-of-function mechanism that occurs post-DNA binding and exerts a dominant-negative effect on wild-type p53.

Tracewell, M. A., Shankle, H. N., Barnada, S. M. + 6 more2026-02-17📄 cancer biology

Targeting FGFR signaling overcomes therapeutic resistance and immune evasion in oncogenic PIK3CA-driven serous-like endometrial cancer

This study demonstrates that targeting FGFR signaling overcomes therapeutic resistance and immune evasion in oncogenic PIK3CA-driven serous-like endometrial cancer by reversing MHC-I downregulation and M2 macrophage enrichment, thereby synergizing with PI3K inhibition and anti-PD-1 therapy to enhance durable antitumor immunity.

Cheng, X., Qian, C., Holdridge, E. + 18 more2026-02-17📄 cancer biology

Cross-reactivity of SARS-CoV-2-specific T cells against tumor-associated antigens via molecular mimicry

This study demonstrates that SARS-CoV-2-specific T cells can cross-react with tumor-associated antigens through molecular mimicry, as evidenced by the identification of unique, individual TCR clonotypes that recognize both viral and tumor peptides, suggesting a promising strategy for developing off-the-shelf cancer vaccines.

Ragone, C., Mauriello, A., Cavalluzzo, B. + 5 more2026-02-17📄 cancer biology