AKT1 mutation

The Desert immune phenotype, as identified on routine H&E-slides with moderate agreement, is a biologically distinct and prognostically significant subset of EC. Future work to improve reproducibility is essential to validate its potential for clinical use, both for risk stratification and for guiding immunotherapy.

Here, we present the landscape of PIK3CA, AKT1, and PTEN alterations in, to our knowledge, the largest clinical cohort examined to date. The functional complexity of rare PTEN variants underscores the need for functional validation by tools such as DMS. Rare AKT pathway variants may predict clinical benefit from AKT inhibitors and warrant further clinical investigation.

In this review, we discuss the clinical and biological significance of PI3K pathway alterations in HR+/HER2- mBC, focusing on tumors that progress following endocrine therapy and CDK4/6 inhibitor treatment. We then highlight how different diagnostic strategies, including sample type, testing methodology, and timing, can improve the identification of patients who are eligible for targeted therapies and promote the effective integration of molecular diagnostics into routine clinical care.

Fusion transcript analysis identified 91 recurrent fusions, including novel partners with ERBB2, MED1, and CDK12, suggesting the possibility of unique molecular events. Interpretation and conclusions This study demonstrates that Indian breast cancer patients exhibit molecular subtypes and actionable mutations comparable to Caucasian cohorts.

P1/2, N=53, Not yet recruiting, Shanxi Province Cancer Hospital

Apigenin and kaempferol showed potential as dual-targeting agents for colon cancer therapy. Cell culture and animal model studies in future are warranted to substantiate the mechanistic roles in tumor suppression.

P1, N=134, Active, not recruiting, Atavistik Bio, Inc | Recruiting --> Active, not recruiting

This study provides a regional molecular profile of advanced CRC in Bulgaria, highlighting a high prevalence of KRAS mutations and dMMR status, while underrepresentation of rare targetable alterations, likely due to limited use of broad molecular profiling. The association between stromal features and MMR status supports their potential role as surrogate markers in settings with constrained testing resources. Findings underscore the urgent need for equitable access to molecular diagnostics and targeted therapies to close the survival gap between Eastern and Western Europe.

P1/2, N=47, Not yet recruiting, Cancer Hospital of Shanxi Province; Cancer Hospital of Shanxi Province

In external transcriptomic validation (TCGA-CRC), GSEA indicated enrichment of interferon/inflammatory programs in TIGIT-high tumors, while CD155-high tumors preferentially showed proliferation-related MYC/E2F/G2M signatures. Together, these findings support tumor-wide upregulation of the TIGIT/CD155 axis in CRC and suggest that TIGIT, more than CD155, tracks with MSI/BRAF-associated immune activation, providing a rationale for patient stratification in checkpoint-directed immunotherapy.

P2, N=124, Recruiting, Alliance for Clinical Trials in Oncology | Trial primary completion date: Jan 2026 --> Jan 2027

These features often create diagnostic challenges during preoperative biopsy, intraoperative frozen section analysis, and postoperative histopathological evaluation. Herein, we report a rare case of recurrent, multifocal PSP exhibiting sarcomatoid features and harboring a p.E17K mutation in the AKT1 gene.