Production of Limit Size Nanoliposomal Systems with Potential Utility as Ultra-Small Drug Delivery Agents


Authors: Zhigaltsev IV, Tam YK, Leung AK, Cullis PR

Journal: Journal of Liposome Research

DOI: 10.3109/08982104.2015.1025411

Publication - Abstract

April 09, 2015

Abstract:

Previous studies from this group have shown that limit size lipid-based systems – defined as the smallest achievable aggregates compatible with the packing properties of their molecular constituents – can be efficiently produced using a rapid microfluidic mixing technique. In this work, it is shown that similar procedures can be employed for the production of homogeneously sized unilamellar vesicular systems of 30-40 nm size range. These vesicles can be remotely loaded with the protonable drug doxorubicin and exhibit adequate drug retention properties in vitro and in vivo. In particular, it is demonstrated that whereas sub-40 nm lipid nanoparticle (LNP) systems consisting entirely of long-chain saturated phosphatidylcholines cannot be produced, the presence of such lipids may have a beneficial effect on the retention properties of limit size systems consisting of mixed lipid components. Specifically, a 33-nm diameter doxorubicin-loaded LNP system composed of 1-palmitoyl-2-oleoyl phosphatidylcholine (POPC), 1,2-dipalmitoyl phosphatidylcholine (DPPC), cholesterol, and PEGylated lipid (DSPE-PEG2000) demonstrated adequate, stable drug retention in the circulation, with a half-life for drug release of ∼12 h. These results indicate that microfluidic mixing is the technique of choice for the production of bilayer LNP systems with sizes less than 50 nm that could lead to development of a novel class of ultra-small drug delivery vehicles.

Advanced Search

close
  • Publications
  • Application Notes
  • Posters
  • Workshops
  • Videos & Webinars
  • Blog Posts
Search

Browse by Category

  • Application
    • Diagnostic and Imaging
    • Genetic Medicine
    • Hematology
    • Metabolic Disorders
    • Neuroscience
    • Oncology
    • Skeletal Disorders
    • Targeted Drug Delivery
    • Vaccines
    • Other Applications
  • Formulation
    • Liposomes
    • Nucleic Acid Lipid Nanoparticles
    • Polymeric Nanoparticles
    • Other Formulations
  • Payload
    • DNA
    • microRNA
    • mRNA
    • siRNA
    • Small Molecule Drugs
    • Other Payloads


related content

Publication - Abstract

Cell specific delivery of modified mRNA expressing therapeutic proteins to leukocytes

Nuphar Veiga, Meir Goldsmith, Yasmin Granot, Daniel Rosenblum, Niels Dammes, Ranit Kedmi, Srinivas Ramishetti & Dan Peer

Therapeutic alteration of gene expression in vivo can be achieved by delivering nucleic acids (e.g., mRNA, siRNA) using nanoparticles. Recent progress in modified messenger RNA (mmRNA) synthesis facilitated the development of lipid nanoparticles (LNPs) loaded with mmRNA as a prom...
Read More


Publication - Abstract

Nanoparticles provide a unique opportunity to explore the benefits of selective distribution and release of cancer therapeutics at sites of disease through varying particle sizes and compositions that exploit the enhanced permeability of tumor-associated blood vessels.
Read More


Stay Informed

Sign up today to automatically receive new Precision NanoSystems application notes, conference posters, relevant science publications, and webinar invites.

MENU
菜单
X
X