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Updated: May 14, 2026

A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
[Personalized therapy concepts for malignant melanoma]
M Schlaak1, N Kreuzberg, C Mauch
1Klinik für Dermatologie und Venerologie, Hauttumorzentrum im CIO Köln-Bonn, Uniklinik Köln, Kerpener Str. 62, 50937, Köln.
Abstract:
Metastatic melanoma is commonly regarded as one of the most difficult tumor entities to treat. Up to 2011 no systemic therapy had been able to achieve a prolongation of overall survival in controlled randomized trials. Cytotoxic chemotherapy resulted in objective remission in only a small subgroup of patients. The growing insight into the molecular pathology and the discovery of frequent mutations made it possible to define melanoma subgroups suitable for targeted therapies. In approximately 50% of melanomas activating mutations of the BRAF gene were identified and can be treated with specific inhibitors. Further mutations which can be approached by targeted therapies are found on the c-Kit and NRAS genes. Another promising approach is immunotherapy aimed to activate cytotoxic T cells. A monoclonal antibody directed against CTLA-4 was approved after convincing results in clinical trials and antibodies against PD-1 or PD-L1 are currently under clinical investigation. Through these achievements life prolonging therapies are available for melanoma patients for the first time.
Insights
Metastatic melanoma treatment has advanced significantly with targeted therapies and immunotherapy. These novel approaches, including BRAF inhibitors and immune checkpoint inhibitors, offer life-prolonging options for patients.
Area of Science:
- Oncology
- Molecular Biology
- Immunology
Context:
- Metastatic melanoma remains a challenging cancer with limited effective systemic therapies prior to 2011.
- Cytotoxic chemotherapy offered limited response rates in a small patient subgroup.
- Advances in understanding melanoma's molecular pathology have identified key mutations for targeted treatment.
Purpose:
- To review the advancements in systemic therapy for metastatic melanoma.
- To highlight the impact of molecular profiling and immunotherapy on treatment strategies.
- To discuss novel therapeutic targets and their clinical implications.
Summary:
- Activating mutations in the BRAF gene, found in approximately 50% of melanomas, are targets for specific inhibitors.
- Mutations in c-Kit and NRAS also present opportunities for targeted therapies.
- Immunotherapy, including CTLA-4 blockade and PD-1/PD-L1 targeting, activates cytotoxic T cells to combat melanoma.
Impact:
- For the first time, life-prolonging systemic therapies are available for metastatic melanoma patients.
- Targeted therapies and immunotherapy represent a paradigm shift in melanoma treatment.
- These advancements offer improved survival outcomes and new hope for patients with advanced melanoma.
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