Designing peptide nanoparticles for efficient brain delivery

Adv Drug Deliv Rev. 2020:160:52-77. doi: 10.1016/j.addr.2020.10.001. Epub 2020 Oct 5.

Abstract

The targeted delivery of therapeutic compounds to the brain is arguably the most significant open problem in drug delivery today. Nanoparticles (NPs) based on peptides and designed using the emerging principles of molecular engineering show enormous promise in overcoming many of the barriers to brain delivery faced by NPs made of more traditional materials. However, shortcomings in our understanding of peptide self-assembly and blood-brain barrier (BBB) transport mechanisms pose significant obstacles to progress in this area. In this review, we discuss recent work in engineering peptide nanocarriers for the delivery of therapeutic compounds to the brain: from synthesis, to self-assembly, to in vivo studies, as well as discussing in detail the biological hurdles that a nanoparticle must overcome to reach the brain.

Keywords: Alzheimer’s disease; Blood–brain barrier; Drug delivery; Glioma; Parkinson’s disease; Peptides; Self-assembly; Transcytosis.

Publication types

  • Research Support, Non-U.S. Gov't
  • Systematic Review

MeSH terms

  • Administration, Intranasal
  • Animals
  • Biological Transport / physiology
  • Blood-Brain Barrier / metabolism*
  • Brain / drug effects*
  • Drug Delivery Systems / methods*
  • Drug Implants
  • Humans
  • Nanoparticles / chemistry*
  • Peptides / chemistry*
  • Recombinant Proteins / administration & dosage
  • Recombinant Proteins / chemistry

Substances

  • Drug Implants
  • Peptides
  • Recombinant Proteins