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August 9, 2026Journal of NanobiotechnologyOpen Access

Cancer nanovaccine plus doxorubicin and immune checkpoint blockade overcomes chemoresistance and delays postsurgical recurrence

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Authors

CLChan Mi LeeYKYun KwonJWJi Eun Won

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Overview

Randomized trial demonstrates enhanced tumor control in chemoresistant tumors, suggesting new treatment strategies.

Key Points

  • This study aims to evaluate the efficacy of a chemo-immunotherapy regimen in overcoming chemoresistance and delaying tumor recurrence.
  • Developed PLGA nanoparticles co-encapsulating HPV E7 peptide and poly I:C as a cancer nanovaccine.
  • Conducted experiments in a doxorubicin-resistant tumor model to assess tumor response and immune activation.
  • Evaluated effects on tumor burden, proliferation, and immune cell activity including CD8⁺ T cells.
  • Co-administration reduced tumor burden and proliferation (measured by microvessel density).
  • Significant enhancement in cytotoxic CD8⁺ T cell responses was observed.
  • MDR1 expression downregulated, and CD44⁺CD133⁺ cancer stem-like cells were reduced.

Cite This Study

Lee et al. (2026) studied this question.

synapsesocial.com/papers/6a782cfa2e1896536c83fc45https://doi.org/10.1186/s12951-026-04892-3
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