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Determinants of resistance and response to melanoma therapy

Bailey M Robertson1, Mitchell E Fane1, Ashani T Weeraratna1

  • 1Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.

Nature Cancer
|July 17, 2024
PubMed

Insights

Metastatic melanoma remains challenging despite advances in targeted therapies and immune checkpoint blockade. Tumor plasticity and microenvironmental factors drive resistance, necessitating novel therapeutic strategies for a cure.

Area of Science:

  • Oncology
  • Cancer Biology
  • Immunology

Background:

  • Metastatic melanoma presents significant clinical management challenges.
  • Despite therapeutic progress, most patients eventually experience disease progression.
  • Tumor cell plasticity and the tumor microenvironment contribute to treatment resistance.

Purpose of the Study:

  • To discuss the key factors driving tumor heterogeneity in metastatic melanoma.
  • To explore the mechanisms underlying therapeutic resistance.
  • To review promising therapeutic regimens with curative potential.

Main Methods:

  • Review of current literature on metastatic melanoma treatment and resistance.
  • Analysis of genetic and nongenetic mechanisms of tumor plasticity.
  • Evaluation of host microenvironmental influences on cancer progression.

Main Results:

  • Tumor heterogeneity is driven by complex genetic and nongenetic factors.
  • Therapy resistance is multifactorial, involving tumor cell plasticity and immune evasion.
  • Specific targeted therapies (e.g., BRAFV600E/K inhibitors) and immune checkpoint blockade (e.g., anti-PD-1) show limitations in long-term efficacy.

Conclusions:

  • Understanding tumor heterogeneity and resistance mechanisms is crucial for improving outcomes.
  • Novel therapeutic strategies targeting plasticity and microenvironment are needed.
  • Effective combination regimens hold promise for curative treatment of metastatic melanoma.

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