Molecular Characterization of Seminoma Utilizing the AACR Project GENIE: A Retrospective Observational Study

Area of Science:

• Genomic medicine
• Oncology
• Cancer genomics

Background:

• Seminoma is a malignant germ cell tumor primarily affecting the testicles, but can occur in other sites.
• Understanding the genetic underpinnings of seminoma is crucial for developing targeted therapies.

Purpose of the Study:

• To investigate the somatic genomic landscape of seminoma.
• To identify common somatic mutations and copy number alterations.
• To explore potential therapeutic strategies based on genetic profiling.

Main Methods:

• Retrospective analysis of clinical and genomic data from the AACR Project GENIE.
• Utilized R and R Studio software for data analysis.
• Statistical significance set at p < 0.05 for common somatic mutations and copy number alterations.

Main Results:

• Most mutated genes: KIT (22.6%), KRAS (17.1%), MTOR (5.1%).
• Significant copy number alterations: CDKN1B (17.2%), KRAS (14.7%), CCND2 (10.3%), H3F3C (9.8%).
• Identified pathway involvement (KIT/RAS/MAPK, PI3K/AKT/mTOR) and novel mutations in Black individuals; differential mutation patterns in primary vs. metastatic samples.

Conclusions:

• Comprehensive molecular and genetic profiling of seminoma identified key alterations and affected pathways.
• Overlapping pathways and gene mutations suggest potential for multi-pathway therapeutic strategies.
• Findings provide a foundation for novel treatment options for seminoma patients.