Research Article

Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform

Volume: 5 Number: 2 August 24, 2026
TR EN

Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform

Abstract

Objective: Testicular germ cell tumors (TGCTs) represent the most prevalent solid malignancy in young adult males. Despite multimodal treatment advancements, the molecular drivers of their aggressive biological behavior and subtype-specific differences remain insufficiently understood. Methods: This integrative in silico study utilized the cBioPortal platform to analyze Cancer Genome Atlas Pan-Cancer Atlas dataset. We examined genomic, transcriptomic, and proteomic data from a cohort of 149 TGCT patients to characterize mutation frequencies and structural variants across seminoma and non-seminomatous germ cell tumor subtypes. Results: Our analysis identified three principal genes with significant alteration frequencies: KIT (13%), KRAS (8%), and PTMA (5%). KIT and KRAS mutations demonstrated a marked subtype-specific distribution, with KRAS mutations observed exclusively in seminomas. In contrast, PTMA alterations displayed a broader distribution across multiple histologies, including mixed germ cell tumors and embryonal carcinomas. Additionally, we identified structural variants in genes such as TTC28, ACOT7, and CMSS1, highlighting the complexity of the TGCT genomic landscape. Conclusion: Our findings underscore the utility of integrative multi-omics analysis in elucidating the molecular background of TGCTs. The distinct association of KRAS and KIT with the seminomatous lineage, alongside the broad histological distribution of PTMA, provides novel insights into tumor biology. These molecular signatures may contribute to improved diagnostic precision and the development of tailored therapeutic interventions for patients with TGCT.

Keywords

Ethical Statement

Ethics committee approval was obtained from Ethics Committee of Health Sciences University Başakşehir Çam and Sakura City Hospital (Date: May 12, 2026, Number: 276).

References

  1. 1. Batool A, Karimi N, Wu XN, Chen SR, Liu YX. Testicular germ cell tumor: a comprehensive review. Cell Mol Life Sci. 2019;76(9):1713-1727.
  2. 2. Woldu SL, Amatruda JF, Bagrodia A. Testicular germ cell tumor genomics. Curr Opin Urol. 2017;27(1):41-47.
  3. 3. Nuñez-Corona D, Contreras-Sanzón E, Puente-Rivera J, et al. Epigenetic factors and ncRNAs in testicular cancer. Int J Mol Sci. 2023;24(15):12194.
  4. 4. Berger MF, Mardis ER. The emerging clinical relevance of genomics in cancer medicine. Nat Rev Clin Oncol. 2018;15(6):353-365.
  5. 5. Cerami E, Gao J, Dogrusoz U, et al. The cBio cancer genomics portal: an open platform for exploring multidimensional cancer genomics data. Cancer Discov. 2012;2(5):401-404.
  6. 6. Liu J, Lichtenberg T, Hoadley KA, et al. An integrated TCGA pan-cancer clinical data resource to drive high-quality survival outcome analytics. Cell. 2018;173(2):400-416.
  7. 7. Ellrott K, Bailey MH, Saksena G, et al. Scalable open science approach for mutation calling of tumor exomes using multiple genomic pipelines. Cell Syst. 2018;6(3):271-281.
  8. 8. Hoadley KA, Yau C, Hinoue T, et al. Cell-of-origin patterns dominate the molecular classification of 10,000 tumors from 33 types of cancer. Cell. 2018;173(2):291-304.

Details

Primary Language

English

Subjects

Surgery (Other)

Journal Section

Research Article

Early Pub Date

August 20, 2026

Publication Date

August 24, 2026

Submission Date

July 13, 2026

Acceptance Date

August 14, 2026

Published in Issue

Year 2026 Volume: 5 Number: 2

APA
Çalım Gürbüz, B. (2026). Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform. Trends in Surgical Sciences, 5(2), 90-95. https://doi.org/10.61745/tss.1994143
AMA
1.Çalım Gürbüz B. Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform. Trends in Surgical Sciences. 2026;5(2):90-95. doi:10.61745/tss.1994143
Chicago
Çalım Gürbüz, Begüm. 2026. “Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the CBioPortal Platform”. Trends in Surgical Sciences 5 (2): 90-95. https://doi.org/10.61745/tss.1994143.
EndNote
Çalım Gürbüz B (August 1, 2026) Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform. Trends in Surgical Sciences 5 2 90–95.
IEEE
[1]B. Çalım Gürbüz, “Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform”, Trends in Surgical Sciences, vol. 5, no. 2, pp. 90–95, Aug. 2026, doi: 10.61745/tss.1994143.
ISNAD
Çalım Gürbüz, Begüm. “Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the CBioPortal Platform”. Trends in Surgical Sciences 5/2 (August 1, 2026): 90-95. https://doi.org/10.61745/tss.1994143.
JAMA
1.Çalım Gürbüz B. Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform. Trends in Surgical Sciences. 2026;5:90–95.
MLA
Çalım Gürbüz, Begüm. “Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the CBioPortal Platform”. Trends in Surgical Sciences, vol. 5, no. 2, Aug. 2026, pp. 90-95, doi:10.61745/tss.1994143.
Vancouver
1.Begüm Çalım Gürbüz. Genomic and Transcriptomic Profiling of Testicular Germ Cell Tumors: Identifying Key Driver Mutations and Structural Variants via the cBioPortal Platform. Trends in Surgical Sciences. 2026 Aug. 1;5(2):90-5. doi:10.61745/tss.1994143

Content of this journal is licensed under a Creative Commons Attribution NonCommercial 4.0 International License

33719