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Potential therapeutic targets and biomarkers in testicular germ cell tumor oncogenesis
Francesco Esposito1,2, Marco De Martino2, Viviana Franco1,3
1Istituto degli Endotipi in Oncologia, Metabolismo e Immunologia "G. Salvatore" del CNR c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Scuola di Medicina e Chirurgia di Napoli, Università degli Studi di Napoli 'Federico II', Naples, Italy.
Introduction:
The most prevalent solid cancer in young adult males is testicular germ cell tumors (TGCTs), which are becoming more and more common globally. Approximately 20% of patients with metastatic disease relapse or develop resistance to cisplatin-based chemotherapy, despite its high effectiveness, underscoring the need for alternative therapies.
Areas Covered:
With an emphasis on new molecular targets and biomarkers, this review describes developments in TGCT pathophysiology and treatment. Tyrosine kinase receptors, transcription factors, elements of the DNA damage response, and cell cycle regulators are important oncogenic drivers. CDK inhibitors, PARP inhibitors, and Aurora kinase antagonists are promising early-stage agents. Meanwhile, noninvasive liquid biopsy techniques are being made possible by biomarkers like CLDN6, cfDNA/ctDNA, and the miR-371 ~ 373 cluster, which may enhance disease monitoring, risk assessment, and diagnosis.
Expert Opinion:
Although the majority of TGCT cases have positive results, cisplatin-refractory disease continues to be a significant therapeutic challenge. A route to precision medicine is provided by molecular profiling and biomarker-driven approaches. However, implementation requires clinical validation, patient selection, and standardization. The landscape of TGCT treatment may change over the next 10 years as a result of the integration of targeted therapies and molecular diagnostics, which may greatly increase survival rates while lowering long-term toxicity.
Insights
Testicular germ cell tumors (TGCTs) are rising globally. New molecular targets and biomarkers offer hope for improved treatments and diagnostics, especially for cisplatin-resistant cases.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Testicular germ cell tumors (TGCTs) are the most common solid cancer in young adult males.
- Increasing global incidence of TGCTs necessitates novel therapeutic strategies.
- Cisplatin-based chemotherapy resistance occurs in approximately 20% of metastatic TGCT patients.
Purpose of the Study:
- To review recent advancements in TGCT pathophysiology and treatment.
- To highlight emerging molecular targets and biomarkers for TGCT management.
- To discuss the potential of precision medicine in improving TGCT outcomes.
Main Methods:
- Review of current literature on TGCT molecular drivers and therapeutic agents.
- Analysis of novel biomarkers for diagnosis and monitoring.
- Discussion of challenges and future directions in TGCT treatment.
Main Results:
- Key oncogenic drivers include tyrosine kinase receptors, transcription factors, DNA damage response elements, and cell cycle regulators.
- Promising early-stage agents include CDK inhibitors, PARP inhibitors, and Aurora kinase antagonists.
- Biomarkers such as CLDN6, cfDNA/ctDNA, and the miR-371–373 cluster enable noninvasive liquid biopsy for enhanced disease assessment.
Conclusions:
- Molecular profiling and biomarker-driven approaches pave the way for precision medicine in TGCT.
- Clinical validation, patient selection, and standardization are crucial for implementing new strategies.
- Integration of targeted therapies and molecular diagnostics promises to improve survival rates and reduce toxicity in TGCT treatment.
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