Intraarticular expression of biologically active interleukin 1-receptor-antagonist protein by ex vivo gene transfer

G. Bandara, G. M. Mueller, J. Galea-Lauri, M. H. Tindal, H. I. Georgescu, M. K. Suchanek, G. L. Hung, J. C. Glorioso, P. D. Robbins, C. H. Evans

Research output: Contribution to journalArticlepeer-review

269 Scopus citations


Gene therapy offers a radical different approach to the treatment of arthritis. Here we have demonstrated that two marker genes (lacZ and neo) and cDNA coding for a potentially therapeutic protein (human interleukin 1-receptor-antagonist protein; IRAP or IL-1ra) can be delivered, by ex vivo techniques, to the synovial lining of joints; intraarticular expression of IRAP inhibited intraarticular responses to interleukin 1. To achieve this, lapine synoviocytes were first transduced in culture by retroviral infection. The genetically modified synovial cells were then transplanted by intraarticular injection into the knee joints of rabbits, where they efficiently colonized the synovium. Assay of joint lavages confirmed the in vivo expression of biologically active human IRAP. With allografted cells, IRAP expression was lost by 12 days after transfer. In contrast, autografted synoviocytes continued to express IRAP for ≈5 weeks. Knee joints expressing human IRAP were protected from the leukocytosis that otherwise follows the intraarticular injection of recombinant human interleukin 1β. Thus, we report the intraarticular expression and activity of a potentially therapeutic protein by gene-transfer technology; these experiments demonstrate the feasibility of treating arthritis and other joint disorders with gene therapy.

Original languageEnglish (US)
Pages (from-to)10764-10768
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number22
StatePublished - Nov 15 1993


  • Arthritis
  • Cell transplantation
  • Gene therapy

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Intraarticular expression of biologically active interleukin 1-receptor-antagonist protein by ex vivo gene transfer'. Together they form a unique fingerprint.

Cite this