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Related Experiment Video

Updated: Feb 26, 2026

Optimized Protocol for Efficient Transfection of Dendritic Cells without Cell Maturation
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Modifying Dendritic Cell Activation with Plasmonic Nano Vectors.

Kieng Bao Vang1, Ingrid Safina2, Emilie Darrigues2

  • 1Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 S University Avenue, Little Rock, AR, 72204, USA. kbvangdings@ualr.edu.

Scientific Reports
|July 16, 2017
PubMed
Summary

Plasmonic nano vectors (PNVs) show promise as carriers for dendritic cell (DC) vaccines. These PNVs are non-toxic, phagocytosed by DCs, and induce DC maturation for cancer immunotherapy.

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Area of Science:

  • Nanomedicine
  • Immunology
  • Biotechnology

Background:

  • Dendritic cells (DCs) are crucial for initiating immune responses by presenting antigens to T-cells.
  • Targeting cancer antigens to DCs is a promising nanomedicine strategy for cancer immunotherapy.
  • The development of effective carriers for DC-based vaccines is essential for clinical translation.

Purpose of the Study:

  • To investigate the potential of plasmonically active silver-coated gold nanorods (PNVs) as carriers for dendritic cell (DC) tumor vaccines.
  • To evaluate the biocompatibility, cellular uptake, and immune-stimulating properties of PNVs in DCs.

Main Methods:

  • DCs were treated with varying concentrations of PNVs.
  • Cell viability was assessed using standard assays.
  • Cellular association and intracellular localization of PNVs were examined.
  • Expression of DC maturation markers (CD40, CD86, MHC class II) was analyzed via flow cytometry.

Main Results:

  • PNVs demonstrated no significant toxicity to DCs up to 200 μg/ml.
  • PNVs were efficiently phagocytosed by DCs and localized within endosomes.
  • Treatment with PNVs significantly upregulated surface expression of CD40, CD86, and MHC class II on DCs.

Conclusions:

  • PNVs are biocompatible and effectively taken up by DCs.
  • PNVs induce DC maturation, indicating their potential as vaccine carriers.
  • These findings support the further investigation of PNVs for clinical applications in DC-based cancer vaccines.