Gene transfer of soluble transforming growth factor type II receptor by in vivo electroporation attenuates lung injury and fibrosis

Mizuho Yamada, Kazuyoshi Kuwano, Takashige Maeyama, Michihiro Yoshimi, Naoki Hamada, Jutaro Fukumoto, Kensuke Egashira, Kenichi Hiasa, Koichi Takayama, Yoichi Nakanishi

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Background: Transforming growth factor-β1 (TGF-β1) has the potential to induce acute inflammation and apoptosis in lung epithelial cells and plays a central role in subsequent fibrosis. Aims: To examine a new anti-TGF-β1 therapy against lung injury and fibrosis, which comprises the transfection of soluble TGF type II receptor (sTGFRII) gene into skeletal muscles by in vivo electroporation. Methods: Soluble TGFRII was detectable between 1 and 14 days in the serum and significantly increased between 3 and 10 days after gene transfer into muscles. Based on these findings, the sTGFRII gene was injected at 3 days before or 4 days after the bleomycin instillation in order to examine the significance of TGF-β1 on the early inflammatory phase (day 0 to day 7) or the fibrotic phase (day 7 to day 14) in this model. Results: Transfection of sTGFRII gene at 3 days before or 4 days after bleomycin instillation significantly attenuated apoptosis, injury, and fibrosis at 7 or 14 days, respectively. This method does not require the use of viral vector or neutralising antibody, and it is therefore possible to avoid problems regarding the pathogenicity of the viral vector or immunocomplex. Conclusions: This novel anti-TGF-β1 strategy may have clinical application in the treatment of lung injury and fibrosis.

Original languageEnglish
Pages (from-to)916-920
Number of pages5
JournalJournal of Clinical Pathology
Volume60
Issue number8
DOIs
Publication statusPublished - Aug 2007

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine

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