2. Academic Validation
  3. Targeting fibroblast-like synovial cells at sites of inflammation with peptide targeted liposomes results in inhibition of experimental arthritis

Targeting fibroblast-like synovial cells at sites of inflammation with peptide targeted liposomes results in inhibition of experimental arthritis

  • Clin Immunol. 2014 Mar;151(1):43-54. doi: 10.1016/j.clim.2014.01.005.
A S Vanniasinghe 1,  N Manolios 2,  S Schibeci 3,  C Lakhiani 2,  E Kamali-Sarvestani 2,  R Sharma 3,  V Kumar 4,  M Moghaddam 5,  M Ali 2,  V Bender 2
Affiliations

Affiliations

  • 1 Department of Rheumatology, Westmead Hospital, Sydney, Australia. Electronic address: [email protected].
  • 2 Department of Rheumatology, Westmead Hospital, Sydney, Australia.
  • 3 Institute of Clinical Pathology and Medical Research, Westmead Hospital, Sydney, Australia.
  • 4 Department of Nuclear Medicine & PET Westmead Hospital, Sydney, Australia.
  • 5 CSIRO Molecular & Health Technologies, Sydney, Australia.
PMID: 24513809 DOI: 10.1016/j.clim.2014.01.005
Abstract

In this study we examined a synovium-specific targeted liposomal drug delivery system for its ability to localize and release its drug cargo to inflamed joints. Targeted liposomes were tested in vitro for binding to synovial fibroblast like (FLS) and endothelial cells using flow cytometry and in vivo for localization to joints using a rat model of Adjuvant induced arthritis (AIA). Targeted liposomes were then loaded with anti-arthritic medications and examined for clinical efficacy in AIA. Targeted liposomes specifically bound to rabbit FLS and human FLS and showed a 7-10 fold increase in vivo localization in affected joints compared to unaffected joints. Histological sections from rats treated with prednisone and a new immunosuppressive peptide CP showed minimal inflammation. This report substantiates the ability of the novel FLS sequence to target liposomal drug delivery and offers an alternative therapeutic approach for the treatment of arthritis.

Keywords

Adjuvant-induced arthritis; Arthritis; Drug delivery; Fibroblast-like synovial cells; Liposomes; Peptides.

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