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MMP-2 responsive polymeric micelles for cancer-targeted intracellular drug delivery

Wei-Hai Chen1, Guo-Feng Luo, Qi Lei

  • 1Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China. wangqr@whu.edu.cn xz-zhang@whu.edu.cn.

Chemical Communications (Cambridge, England)
|October 21, 2014
PubMed

Insights

New multifunctional polymeric micelles loaded with DOX selectively target and eliminate cancer cells. These micelles utilize receptor-mediated endocytosis and respond to MMP-2 protease for targeted drug release and apoptosis induction.

Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Oncology

Background:

  • Cancer cell targeting remains a challenge in chemotherapy.
  • Developing stimuli-responsive drug delivery systems is crucial for targeted cancer therapy.

Purpose of the Study:

  • To prepare multifunctional polymeric micelles for selective cancer cell elimination.
  • To investigate the targeted drug release and apoptosis induction capabilities of these micelles.

Main Methods:

  • Synthesis of Biotin-PEG-b-PLL(Mal)-peptide-DOX polymeric micelles.
  • Evaluation of cancer cell uptake via receptor-mediated endocytosis.
  • Assessment of drug release in response to matrix metalloproteinase-2 (MMP-2).
  • Induction of apoptosis in cancer cells.

Main Results:

  • The prepared micelles demonstrated enhanced cancer cell uptake.
  • Targeted release of the anticancer drug DOX was achieved in response to MMP-2.
  • The micelles successfully induced apoptosis in cancer cells.

Conclusions:

  • Multifunctional polymeric micelles offer a promising strategy for targeted cancer therapy.
  • The developed system effectively targets cancer cells and delivers drugs in a stimuli-responsive manner.
  • This approach holds potential for improving chemotherapy efficacy and reducing side effects.

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