Switchable delivery of small interfering RNA using a negatively charged pH-responsive polyethylenimine-based polyelectrolyte complex

Chem Commun (Camb). 2013 Apr 4;49(26):2670-2. doi: 10.1039/c3cc00134b.

Abstract

A small interfering RNA (siRNA)-loaded polyelectrolyte constructed with branched polyethylenimine (bPEI) and copolymers, consisting of polyethylene glycol (PEG), histidine (His), and glutamic acid (Glu), was developed in order to provide a tumor acidosis-triggered delivery system with low cytotoxicity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Drug Delivery Systems*
  • Drug Screening Assays, Antitumor
  • Electrolytes / chemistry
  • Electrolytes / pharmacology
  • Glutamic Acid / chemistry*
  • Histidine / chemistry*
  • Humans
  • Hydrogen-Ion Concentration
  • Models, Molecular
  • Molecular Structure
  • Polyethylene Glycols / chemistry
  • Polyethylene Glycols / pharmacology*
  • Polyethyleneimine / chemistry
  • Polyethyleneimine / pharmacology*
  • RNA, Small Interfering / chemistry
  • RNA, Small Interfering / pharmacology*
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Electrolytes
  • RNA, Small Interfering
  • Glutamic Acid
  • Polyethylene Glycols
  • Histidine
  • Polyethyleneimine