Breakthrough in Cancer Gene Therapy: Nanoparticle Delivery Systems Show Promise

Strategic Insights -

Researchers at Ludwig-Maximilians-Universitat Munchen have made a significant breakthrough in cancer gene therapy by developing synthetic nanoparticles that can deliver nucleic acids to target EMT-phenotypic breast cancer cells. The study, funded by the Bundesministerium fur Bildung und Forschung, aimed to create a nanoparticulate delivery vehicle that targets CD44, a transmembrane protein linked to cancer malignancy and EMT. The research utilized hyaluronic acid (HA) in HA-modified polyelectrolyte complexes (polyplexes, Px) to create nanoparticles that demonstrated stability against competing anionic biomolecules, improved colloidal stability, and enhanced selectivity and efficacy in targeting E/M-hybrids and EMT-positive cells.

Key Takeaways:

  • Researchers at Ludwig-Maximilians-Universitat Munchen have developed synthetic nanoparticles that can stably encapsulate nucleic acids as active pharmaceutical payloads.
  • The nanoparticles target CD44, a transmembrane protein linked to cancer malignancy and EMT, to deliver nucleic acids to EMT-phenotypic breast cancer cells.
  • The study utilized hyaluronic acid (HA) in HA-modified polyelectrolyte complexes (polyplexes, Px) to create nanoparticles that demonstrated stability against competing anionic biomolecules and improved colloidal stability.
  • The researchers found that HA-mediated endocytosis was responsible for the targeting and internalization of the nanoparticles by E/M-hybrids and EMT-positive cells.
  • The study highlights the need to consider CD44 heterogeneities in the clinical development of HA-based drug delivery systems.

Statistics:

  • The Bundesministerium fur Bildung und Forschung provided financial support for the research.
  • The study investigated the use of HA-modified polyelectrolyte complexes (polyplexes, Px) to create nanoparticles for cancer gene therapy.
  • The researchers found that the HA : PEI-ratio dependent stability against competing anionic biomolecules was improved in protein-rich environments.
  • The nanoparticles demonstrated enhanced selectivity and efficacy in targeting E/M-hybrids and EMT-positive cells.

Sources:

  • NewsRx. Ludwig-Maximilians-Universitat Munchen Reports Findings in Cancer Gene Therapy (Upholding hyaluronic acid's multi-functionality for nucleic acid drug delivery to target EMT in breast cancer). Nanotechnology Weekly. June 23, 2025; p 552.