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

• Published in: Journal of clinical pathology Vol. 60; no. 8; pp. 916 - 920
• Main Authors: Yamada, Mizuho, Kuwano, Kazuyoshi, Maeyama, Takashige, Yoshimi, Michihiro, Hamada, Naoki, Fukumoto, Jutaro, Egashira, Kensuke, Hiasa, Kenichi, Takayama, Koichi, Nakanishi, Yoichi
• Format: Journal Article
• Language: English
• Published: London BMJ Publishing Group Ltd and Association of Clinical Pathologists 01.08.2007; BMJ; BMJ Publishing Group LTD; BMJ Group
• Subjects: Animals; Antibiotics, Antineoplastic; Apoptosis; Apoptosis - genetics; Biological and medical sciences; Bleomycin; Disease Models, Animal; Electroporation - methods; Experiments; gene therapy; Genetic Therapy - methods; Growth factors; idiopathic pulmonary fibrosis; In Situ Nick-End Labeling - methods; in vivo electroporation; Inflammation; Investigative techniques, diagnostic techniques (general aspects); IPF; Ligands; Lung - pathology; Lung Diseases - genetics; Lung Diseases - pathology; Lung Diseases - therapy; Lungs; Male; Medical prognosis; Medical sciences; Mice; Mice, Inbred C57BL; Muscle, Skeletal; Original; Ostomy; Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques; Pneumology; Proteins; Pulmonary fibrosis; Pulmonary Fibrosis - genetics; Pulmonary Fibrosis - pathology; Pulmonary Fibrosis - therapy; Receptors, Transforming Growth Factor beta - genetics; Respiratory system : syndromes and miscellaneous diseases; Rodents; Solubility; TGF; TGFR; Transfection - methods; transforming growth factor; Transforming Growth Factor beta1 - antagonists & inhibitors; transforming growth factor receptor; transforming growth factor-β1; Vectors (Biology); Japan; California; In vivo; Lung disease; Anatomic pathology; Growth factor receptor; Pulmonary fibrosis; Soluble factor; Respiratory disease; Transforming growth factor; Electroporation; Genetic transfer
• ISSN: 0021-9746; 1472-4146
• DOI: 10.1136/jcp.2006.039396

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.