Bidirectional roles of meningeal lymphatic vessels in brain metastases: friend and foe - Summary - MDSpire

Bidirectional roles of meningeal lymphatic vessels in brain metastases: friend and foe

  • By

  • Wei Shao

  • Erdi Zhu

  • Daoning Chen

  • Hua Lu

  • May 13, 2026

  • 0 min

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Objective:

To explore the dual roles of meningeal lymphatic vessels (MLVs) in brain metastases and their potential as therapeutic targets, emphasizing their implications for improving treatment outcomes.

Key Findings:
  • MLVs promote anti-tumor immunity by draining tumor antigens and supporting T-cell activation in early stages.
  • Pathological remodeling of MLVs due to tumor-derived factors leads to immune evasion and facilitates tumor spread, highlighting the mechanisms involved.
  • MLVs serve as a critical link between the CNS and the immune system, influencing both immune responses and tumor dynamics.
Interpretation:

MLVs exhibit a dual 'friend and foe' role in brain metastases, making them a promising target for therapeutic intervention.

Limitations:
  • Current understanding of MLVs in brain metastases is limited, necessitating further research into their biological roles.
  • Therapeutic strategies targeting MLVs are still in early stages and require further research to validate their efficacy.
Conclusion:

Targeting MLVs could enhance immunotherapy and drug delivery while limiting metastatic spread, representing a novel approach in treating brain metastases and addressing current therapeutic challenges.

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