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Solid Lipid Nanoparticles SLNs for Intracellular Targeting Applications
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4-Hexylresorcinol Loaded Solid Lipid Nanoparticles for Enhancing Anticancer Activity.

Sooho Yeo1, Sukkyun Jung2, Haneul Kim1

  • 1Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, Incheon 21983, Republic of Korea.

Pharmaceuticals (Basel, Switzerland)
|October 26, 2024
PubMed
Summary

Solid lipid nanoparticles (SLNs) effectively delivered 4-hexylresorcinol (4-HR) for enhanced cancer chemotherapy. Encapsulation improved drug uptake and anti-cancer effects, showing promise for tumor treatment.

Keywords:
4-hexylresorcinolanti-cancer therapychemotherapyenhanced permeation and retention effectsolid lipid nanoparticle

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Area of Science:

  • Nanotechnology in Medicine
  • Drug Delivery Systems
  • Cancer Therapeutics

Background:

  • Cancer remains a major global health threat, necessitating advanced chemotherapy strategies post-surgery.
  • 4-hexylresorcinol (4-HR) possesses anti-cancer properties but faces challenges in targeted delivery and cellular uptake due to aggregation.
  • Solid lipid nanoparticles (SLNs) offer a potential solution to overcome these limitations.

Purpose of the Study:

  • To encapsulate 4-hexylresorcinol (4-HR) into solid lipid nanoparticles (SLNs).
  • To enhance the anti-cancer efficacy of 4-HR by improving its targeted delivery and cellular uptake.
  • To mitigate aggregation issues associated with 4-HR in biological systems.

Main Methods:

  • 4-HR loaded SLNs were fabricated using hot melt homogenization and sonication.
  • Characterization involved analysis of particle size, zeta potential, and drug release kinetics.
  • In vitro cytotoxicity was assessed against human cervical (HeLa), lung (A549), and murine colon (CT-26) cancer cell lines.

Main Results:

  • SLN particle sizes ranged from 169.4 to 644.8 nm with zeta potentials from -19.8 to -40.3 mV, indicating suitability for cellular uptake.
  • High entrapment efficiencies (EE) for 4-HR ranged from 75.0% to 96.5%.
  • 4-HR-loaded SLNs exhibited significantly enhanced cytotoxicity compared to free 4-HR, with efficacy dependent on particle size, EE, and cell type.

Conclusions:

  • 4-HR-loaded SLNs represent a promising nanocarrier system for improving chemotherapy outcomes.
  • This formulation strategy effectively enhances the anti-cancer potential of 4-hexylresorcinol.
  • SLN encapsulation offers a viable approach for overcoming drug delivery challenges in cancer treatment.