Metabolic Traits in Cutaneous Melanoma

Area of Science:

• Oncology
• Cancer Biology
• Immunology

Background:

• The tumor microenvironment (TME) is a complex system that influences cancer development and progression.
• In skin cancers like melanoma, the TME is characterized by immune cells that promote immune suppression, primarily lymphocytes.
• Melanoma exhibits cellular heterogeneity across genetic, proteomic, transcriptomic, and metabolomic levels.

Purpose of the Study:

• To investigate the metabolic reprogramming of melanoma cells and infiltrating immune cells within the TME.
• To identify deregulated metabolic pathways as potential therapeutic targets for melanoma.
• To explore how analyzing cellular metabolism can inform novel cancer treatment strategies.

Main Methods:

• Analysis of melanoma cellular heterogeneity at multiple molecular levels (genetic, proteomic, transcriptomic, metabolomic).
• Investigation of metabolic adaptations in both melanoma cells and tumor-infiltrating immune cells (T lymphocytes, macrophages, NK cells, neutrophils).
• Examination of the interplay between cellular metabolism and the tumor microenvironment.

Main Results:

• Melanoma cells undergo metabolic reprogramming due to genetic alterations and adaptation to nutrient-poor, hypoxic TME conditions.
• Deregulated glycolysis is a key metabolic adaptation in tumor cells, presenting a potential therapeutic target.
• Infiltrating immune cells in melanoma also possess distinct metabolic characteristics that contribute to tumorigenesis within the TME.

Conclusions:

• Understanding the metabolic landscape of both melanoma cells and immune cells is crucial for developing innovative therapeutic approaches.
• Targeting metabolic checkpoints in melanoma can enhance the efficacy of existing immune and targeted therapies.
• Metabolic interventions hold promise for overcoming therapeutic resistance in melanoma treatment.