SiRNA for therapeutic immuno-modulation: Simultaneous delivery of cytokine targeted SiRNA and DNA antigens to dendritic cells using polymer microcarriers

Ankur Singh, Hui Nie, Bilal Ghosn, Krishnendu Roy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

RNA interference mediated gene knockdown is a potential immuno-modulatory tool for tuning dendritic cells (DC) activation and function in-vivo. We have developed a novel multi-tiered delivery system for combinatorial administration of siRNA and plasmid DNA antigens in a single gene carrier system. Our hypothesis is that codelivery of IL-10 specific siRNA along with DNA antigens to the same dendritic cells would inhibit IL-10 production, enhance DC activation, antigen presentation, and T cell response. Non-toxic, polyethyleneimine (PEI)-functionalized, poly(lactic-co-glycolic acid) (PEI-PLGA) microparticles co-delivering IL-10 siRNA and DNA antigen exhibited significantly higher (p<0.05) IL-10 gene knockdown in primary DCs, and DNA transfection, invitro. Mice immunized intramuscularly with (IL-10)-SiRNA-HBsAg-PEI-PLGA particles demonstrated successful "switch" towards a stronger Th1 response as compared to naked DNA or HBsAg loaded PEI-PLGA treated animals.

Original languageEnglish (US)
Title of host publicationTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Pages350-353
Number of pages4
StatePublished - 2008
Externally publishedYes
Event2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 - Quebec City, QC, United States
Duration: Jun 1 2008Jun 5 2008

Publication series

NameTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Volume2

Conference

Conference2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008
Country/TerritoryUnited States
CityQuebec City, QC
Period6/1/086/5/08

Keywords

  • Combinatorial delivery
  • Immuno-modulation
  • Interleukin-10
  • siRNA
  • Th1 response

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'SiRNA for therapeutic immuno-modulation: Simultaneous delivery of cytokine targeted SiRNA and DNA antigens to dendritic cells using polymer microcarriers'. Together they form a unique fingerprint.

Cite this