XRCC2 (X-Ray Repair Cross Complementing 2)

P2, N=20, Active, not recruiting, Massachusetts General Hospital | Trial primary completion date: Dec 2025 --> Dec 2026

P1/2, N=31, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Nov 2025 --> Mar 2026

Although HRD is a biomarker used to determine which cancer patients would benefit from PARP inhibitors, a lack of harmonization of tests to determine HRD status makes it challenging to interpret their results. Our study highlights the use of comprehensive whole genome sequencing analysis to better predict HRD and elucidates genomic mechanisms associated with this phenotype.

Overall, RAD51 and LIG4 polymorphisms may contribute to OC susceptibility in South Indian women. Larger, multi-center studies are warranted to validate these findings and explore their potential as predictive biomarkers for OC.

She showed a sustained clinical response to fourth-line treatment with the PARP inhibitor olaparib, which lasted 15 months and led to improved performance status. Subsequent progression led to combination therapy with atezolizumab and bevacizumab, maintaining stable disease for eight months. Molecularly guided treatment resulted in an overall survival of 25 months.

The INHERITY LC study identified a PGV prevalence of 10.3% in a selected NSCLC cohort, with most variants affecting genes involved in the DNA damage repair (DDR) pathway. The application of specific selection criteria may enhance the yield of germline testing in this setting. Larger confirmatory studies are warranted to demonstrate that germline testing and genetic counseling for NSCLC may have implications for prevention, early detection, and treatment.

The RAD51B complex promotes dynamic adenosine triphosphate hydrolysis-dependent assembly of RAD51 filaments, whereas the XRCC3 complex stably caps the 5'-termini of RAD51 filaments to promote homologous pairing, as visualized by cryo-electron microscopy. Highly conserved across evolution, these complexes reveal insights into RAD51 filament formation and capping during DNA repair and replication fork stabilization.

Our findings revealed a complex and heterogeneous genetic background of IBC in the Tunisian population that might contribute to disease susceptibility and impact disease prognosis. The genetic features of IBC presented in this study provide valuable insights into the molecular mechanisms underlying the disease offering not only a deeper understanding within the context of Tunisia but also shedding light on its relevance to other North African populations characterized by similar epidemiological and genetic features.

Comparison with three established LUAD prognostic signatures (Shedden, Soltis, and Song) within the TCGA network showed that our 8-gene signature had comparable or superior predictive power while maintaining concordance with existing signatures, some of which contain an order of magnitude more transcripts. Our findings suggest that novel gene signature holds promise for refining early-stage LUAD prognostic modeling and informing treatment strategies.

P2, N=20, Active, not recruiting, Massachusetts General Hospital | Recruiting --> Active, not recruiting

This comprehensive review provides a systematic summary of EC‑related FA genes, elucidates the roles of various FA genes in EC and further speculates on their related mechanisms to facilitate the development of targeted therapies that specifically target key genes, leading to a more accurate and efficient treatment for EC. The present review searched PubMed and Google Scholar for articles published in English up to June 2025 using keywords such as Fanconi anemia pathway, 22 FA genes (FANCA, FANCB, FANCC, FANCD1/BRCA2, FANCD2, FANCE, FANCF, FANCG, FANCI, FANCJ/BRIP1, FANCL, FANCM, FANCN/PALB2, FANCO/RAD51C, FANCP/SLX4, FANCQ/XPF, FANCR/RAD51, FANCS/BRCA1, FANCT/UBE2T, FANCU/XRCC2, FANCV/REV7, FANCW/RFWD3), endometrial cancer (type I: Endometrioid adenocarcinoma; Type II Uterine serous carcinoma, clear‑cell carcinoma, carcinosarcoma), somatic copy number alterations, microsatellite instability, TP53 mutations, pathogenesis, genomic instability, target therapy.

HRR mutations were associated with favorable survival outcomes in patients treated with nivolumab plus chemotherapy. Our findings suggest that HRR mutations may serve as a potential predictive biomarker for first-line ICI-based chemotherapy in gastric cancer.