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Updated: Nov 11, 2025

A 3D Organotypic Melanoma Spheroid Skin Model
Published on: May 18, 2018
Advanced Melanoma: Resistance Mechanisms to Current Therapies
Alexandra M Haugh1, April K S Salama2, Douglas B Johnson3
1Department of Medicine, Vanderbilt University Medical Center, 719 Thompson Lane, Suite 20400, Nashville, TN 37204, USA.
New melanoma treatments like immune checkpoint inhibitors and targeted therapies show promise but face resistance. This review explores mechanisms of acquired resistance to BRAF/MEK inhibitors and checkpoint inhibitors in melanoma patients.
Area of Science:
- Oncology
- Immunology
- Dermatology
Background:
- Metastatic melanoma management has been transformed by novel therapies.
- Immune checkpoint inhibitors and targeted therapies have improved patient outcomes.
- Treatment efficacy is often limited by innate or acquired resistance.
Purpose of the Study:
- To review mechanisms of acquired resistance to BRAF/MEK inhibitors in melanoma.
- To discuss insights into innate and acquired resistance to checkpoint inhibitors.
- To provide a comprehensive overview of therapeutic resistance in melanoma.
Main Methods:
- Literature review of recent studies on melanoma treatment resistance.
- Analysis of known and suspected resistance mechanisms.
- Synthesis of current understanding of BRAF/MEK and checkpoint inhibitor resistance.
Main Results:
- Identified various mechanisms contributing to acquired resistance to BRAF/MEK inhibitors.
- Highlighted emerging insights into innate and acquired resistance to checkpoint inhibitors.
- Detailed the challenges posed by treatment resistance in metastatic melanoma.
Conclusions:
- Understanding resistance mechanisms is crucial for overcoming treatment limitations.
- Further research into resistance pathways will guide the development of more effective therapies.
- Improved therapeutic strategies are needed to address resistance in melanoma patients.
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