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Curcumin-encapsulating Nanogels as an Effective Anticancer Formulation for Intracellular Uptake.

Anna Reeves1, Serguei V Vinogradov2, Phil Morrissey3

  • 1Bucknell University, Lewisburg, PA, USA.

Molecular and Cellular Pharmacology
|March 4, 2016
PubMed
Summary

This study developed a novel nanogel carrier (NG127) to improve curcumin

Keywords:
Anticancer Drugs And Breast Cancer CellsCurcuminNanogels

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Area of Science:

  • Nanomedicine
  • Materials Science
  • Pharmacology

Background:

  • Curcumin, a natural anticancer agent, suffers from poor solubility and bioavailability.
  • Nanoscale drug delivery systems offer enhanced efficacy and safety for anticancer drugs.

Purpose of the Study:

  • To develop and evaluate a novel colloidal nanogel carrier for curcumin encapsulation.
  • To improve curcumin's solubility, bioavailability, and anticancer efficacy.

Main Methods:

  • Formulation of an amphiphilic Poloxamer-cationic nanogel (NG127) encapsulating curcumin.
  • Characterization of curcumin-nanogel complexes (C-NG) for size and drug content.
  • Assessment of C-NG cellular uptake in MDA-231 breast cancer cells using multispectral imaging flow cytometry.
  • Evaluation of C-NG's cytotoxicity and anti-proliferative effects on breast cancer cells using electronic sensing assays and fluorescent microscopy.

Main Results:

  • Curcumin was efficiently encapsulated in NG127 nanogel carriers, forming homogenous complexes (ca. 150 nm) with 20-25% curcumin content.
  • The curcumin-nanogel formulation (C-NG) showed enhanced cellular internalization into breast cancer cells.
  • C-NG demonstrated significantly higher efficacy (70-85%) in inhibiting cancer cell growth compared to free curcumin at lower concentrations.
  • The nanocarrier NG127 alone exhibited negligible cytotoxicity.

Conclusions:

  • Novel nanogel carriers effectively encapsulate curcumin, enhancing its anticancer properties.
  • This nanoformulation offers a promising strategy for more effective breast cancer therapeutics with reduced toxicity.
  • The nanocarrier system holds potential for targeted drug delivery to tumors.