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February 9, 2026Science Immunology0 citations

The dark side of the dot: How melanosomes dim T cell activity

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YLYuqi LiuÉCÉtienne Caron

Key Points

  • The central aim is to understand how melanosomes produced by melanoma cells affect T cell function.
  • Investigated the interaction of melanosomes with CD8+ T cell receptors (TCRs)
  • Analyzed the effects on T cell activity and immune response dynamics
  • Melanosomes interact with CD8+ TCRs, leading to impaired T cell activity
  • Melanoma cells demonstrate a significant method for evading immune detection through melanosome secretion

Abstract

Melanoma cells evade immune detection by secreting MHC-peptide–loaded melanosomes that interact with and impair CD8+ TCRs.

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Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/698979e9f0ec2af6756e7ea6https://doi.org/10.1126/sciimmunol.aef9200
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