Cancer-selective nanoparticles for combinatorial siRNA delivery to primary human GBM in vitro and in vivo

Kristen L. Kozielski, Alejandro Ruiz-Valls, Stephany Y. Tzeng, Hugo Guerrero-Cázares, Yuan Rui, Yuxin Li, Hannah J. Vaughan, Marissa Gionet-Gonzales, Casey Vantucci, Jayoung Kim, Paula Schiapparelli, Rawan Al-Kharboosh, Alfredo Quiñones-Hinojosa, Jordan J. Green

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Novel treatments for glioblastoma (GBM)are urgently needed, particularly those which can simultaneously target GBM cells’ ability to grow and migrate. Herein, we describe a synthetic, bioreducible, biodegradable polymer that can package and deliver hundreds of siRNA molecules into a single nanoparticle, facilitating combination therapy against multiple GBM-promoting targets. We demonstrate that siRNA delivery with these polymeric nanoparticles is cancer-selective, thereby avoiding potential side effects in healthy cells. We show that we can deliver siRNAs targeting several anti-GBM genes (Robo1, YAP1, NKCC1, EGFR, and survivin)simultaneously and within the same nanoparticles. Robo1 (roundabout homolog 1)siRNA delivery by biodegradable particles was found to trigger GBM cell death, as did non-viral delivery of NKCC1, EGFR, and survivin siRNA. Most importantly, combining several anti-GBM siRNAs into a nanoparticle formulation leads to high GBM cell death, reduces GBM migration in vitro, and reduces tumor burden over time following intratumoral administration. We show that certain genes, like survivin and EGFR, are important for GBM survival, while NKCC1, is more crucial for cancer cell migration. This represents a powerful platform technology with the potential to serve as a multimodal therapeutic for cancer.

Original languageEnglish (US)
Pages (from-to)79-87
Number of pages9
StatePublished - Jul 2019


  • Cancer therapy
  • Combination therapy
  • Gene therapy
  • Nanoparticle
  • siRNA

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Ceramics and Composites
  • Biomaterials
  • Mechanics of Materials


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