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A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
Prospects for non-immunological molecular therapeutics in melanoma
A J Eustace1, T Mahgoub, D Tryfonopoulos
1National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin, Ireland. norma.odonovan@dcu.ie
Abstract:
In 2006 there were 60,000 new cases of cutaneous melanoma in the European Union and 13,000 deaths (www.europeancancerleagues. org). Currently available systemic treatment options for metastatic melanoma, including both cytotoxic and immunologic therapies, produce low rates of response and have modest survival impact. Therefore, there is an urgent need for effective novel therapies. Molecularly targeted treatments have demonstrated efficacy in certain cancers e.g. in HER2- positive breast cancer and in chronic myeloid leukaemia. Several pathways are currently being investigated as potential molecular targets in melanoma. The best studied is BRAF which is frequently mutated in melanoma. A multi tyrosine kinase inhibitor, sorafenib, which targets BRAF, has shown promising activity in preclinical studies and is currently being tested in combination with chemotherapy in patients with metastatic disease. In addition to BRAF, therapies which target other components of the Raf/Ras/MAPK pathway are being investigated. Other novel targets currently being investigated include the PI3/AKT pathway, tyrosine kinases, angiogenesis, poly (ADP ribose) polymerases, survivin and heat shock protein 90. Progress on preclinical and clinical evaluation of these novel targets in melanoma will be reviewed.
Insights
Metastatic melanoma urgently requires new treatments due to limited efficacy of current options. This review covers novel molecular targets and therapies, including BRAF inhibitors, for improving melanoma patient outcomes.
Area of Science:
- Oncology
- Dermatology
- Molecular Biology
Background:
- Cutaneous melanoma presents a significant health burden in the European Union, with 60,000 new cases and 13,000 deaths in 2006.
- Current systemic treatments for metastatic melanoma offer limited response rates and survival benefits.
- The need for effective novel therapies in melanoma treatment is critical.
Purpose of the Study:
- To review the progress of novel molecular targets and therapies for metastatic melanoma.
- To highlight the potential of molecularly targeted treatments in oncology.
- To discuss the evaluation of new therapeutic strategies in preclinical and clinical settings.
Main Methods:
- Review of current literature on molecular targets in melanoma.
- Analysis of preclinical and clinical data for emerging therapies.
- Focus on pathways such as BRAF, Raf/Ras/MAPK, and PI3/AKT.
Main Results:
- BRAF mutations are frequently observed in melanoma, making it a key therapeutic target.
- Multi-tyrosine kinase inhibitors targeting BRAF, like sorafenib, show promise.
- Other investigated targets include PI3/AKT pathway, tyrosine kinases, angiogenesis, and heat shock protein 90.
Conclusions:
- Molecularly targeted therapies represent a promising avenue for treating metastatic melanoma.
- Targeting specific pathways like BRAF offers potential for improved patient outcomes.
- Continued research into novel targets is essential for advancing melanoma treatment.
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