Together, this study demonstrated that KRASG12R is capable of driving tumorigenesis despite the reduced ERK/MAPK nuclear translocation and transcriptional output. Although human KRASG12D and KRASG12R-mutant tumors display unexpected similarities in PI3K activity, the differential ERK/MAPK signaling activity and the extrinsic consequences on the TME provide support for using KRASG12R mutation status as a prognostic biomarker for therapeutic strategies.
1 day ago
Journal
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KRAS (KRAS proto-oncogene GTPase) • TP53 (Tumor protein P53)
The study results identified ENPP1 as a contributor to pancreatitis-mediated pancreatic cancer and a potential therapeutic target for pancreatic carcinogenesis.
By integrating multi-omics data from clinical cohorts and validating findings in vivo, we show that combining KRAS inhibitors with CXCL9/10 restoration effectively overcomes this immune suppression and controls tumor growth. Our work delineates a targetable immune evasion mechanism and provides a cohesive prognostic and therapeutic framework for KRASG12/13-mutant CRC.
The frequencies of dMMR and Lynch syndrome in patients under 50 years old was comparable to our previous report in which testing was conducted as part of research. Our results suggest that in patients under 50 years old(, 1)the utility of BRAF testing as an adjunctive diagnostic tool for Lynch syndrome is limited, and (2)BRAFV600E or KRASG12C was not detected;however, a larger accumulation of cases is necessary.
5 days ago
Retrospective data • Journal • Mismatch repair • MSi-H Biomarker
Our work defines the LY6D+ gastric-like cell state as a key driver linking early pre-malignant heterogeneity to PDAC initiation and progression. LY6D represents a pan-stage therapeutic target and a candidate biomarker for early detection and therapeutic targeting.
5 days ago
Journal
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KRAS (KRAS proto-oncogene GTPase) • FOSL1 (FOS Like 1)
This case underscores the diagnostic challenges of MLA, particularly its ability to masquerade as low-grade or high-grade serous carcinoma on morphology, including cytology, frozen, and permanent sections. We compare the cytologic, histologic, immunophenotypic, and molecular features of MLA and serous carcinoma, highlighting the importance of thorough evaluation to avoid the pitfall of morphology-only diagnosis.
Multigene testing is underutilized in this population. While many targeted therapies carry a high risk of pneumonitis, sotorasib appeared relatively safe. Despite the risks, identifying and treating actionable oncogenic drivers may improve survival.