Current development of targeted oligonucleotide-based cancer therapies: Perspective on HER2-positive breast cancer

Worapol Ngamcherdtrakul1, David J Castro1, Shenda Gu2

  • 1Department of Biomedical Engineering, Oregon Health and Science University, 3303 SW Bond Ave, Portland, OR 97239, USA; PDX Pharmaceuticals, LLC, 3303 SW Bond Ave, Portland, OR 97239, USA.

Insights

Non-coding oligonucleotides offer novel cancer therapies by targeting key genes. Nanoparticle delivery systems are crucial for advancing small interfering RNA (siRNA) cancer treatments, addressing challenges in clinical translation.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biotechnology

Background:

  • Non-coding oligonucleotides represent a promising therapeutic class for cancer, offering broader targetability than traditional small molecules or monoclonal antibodies.
  • Oligonucleotides can target any gene involved in cancer progression or drug resistance, expanding therapeutic options.
  • Small interfering RNAs (siRNAs) are particularly effective for gene silencing via RNA interference, but clinical application is limited by delivery challenges.

Purpose of the Study:

  • To review nanoparticle development for systemic delivery of small interfering RNAs (siRNAs) in cancer therapy.
  • To discuss criteria and considerations for creating effective siRNA delivery platforms.
  • To examine the progress of siRNA-based cancer treatments in clinical trials.

Main Methods:

  • Review of current literature on non-coding oligonucleotides and nanoparticle delivery systems.
  • Analysis of different nanoparticle candidates for systemic siRNA delivery.
  • Examination of clinical trial data for siRNA-based cancer therapeutics.

Main Results:

  • Various classes of nanoparticles show potential for systemic siRNA delivery.
  • Clinical trials are underway for siRNA-based cancer treatments, with some showing promise.
  • HER2-positive breast cancer is highlighted as a potential beneficiary of siRNA technology.

Conclusions:

  • Nanoparticle-mediated delivery is essential for the clinical success of siRNA cancer therapies.
  • siRNA technology holds potential to overcome existing cancer treatment resistance.
  • Further development of effective delivery platforms is critical for realizing the full therapeutic potential of siRNAs in oncology.

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