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Experimental Bronchiolitis Obliterans Induced by In Vivo HVJ-Liposome–Mediated Endothelin-1 Gene Transfer  Shin-ichi Takeda, MD, Yoshiki Sawa, MD, Masato.

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Presentation on theme: "Experimental Bronchiolitis Obliterans Induced by In Vivo HVJ-Liposome–Mediated Endothelin-1 Gene Transfer  Shin-ichi Takeda, MD, Yoshiki Sawa, MD, Masato."— Presentation transcript:

1 Experimental Bronchiolitis Obliterans Induced by In Vivo HVJ-Liposome–Mediated Endothelin-1 Gene Transfer  Shin-ichi Takeda, MD, Yoshiki Sawa, MD, Masato Minami, MD, Yasufumi Kaneda, MD, Yoshitaka Fujii, MD, Ryota Shirakura, MD, Masashi Yanagisawa, MD, Hikaru Matsuda, MD  The Annals of Thoracic Surgery  Volume 63, Issue 6, Pages (June 1997) DOI: /S (97)

2 Fig. 1 Rat lung tissues from a Wistar rat 7 days after transtracheal introduction of HVJ liposome with β-galactosidase gene. Bronchial epithelium (A) and alveolar cells and alveolar macrophages (B) were stained blue (X-Gal), indicating β-gal activity. (A, ×200; B, ×400; both before 35% reduction.) The Annals of Thoracic Surgery  , DOI: ( /S (97) )

3 Fig. 2 Photomicrographs showing histologic findings of lung tissue from a Wistar rat 7 days after in vivo transfection of HVJ-liposome with an empty expression cassette. No histopathologic changes were seen in the control animals after introduction. (Hematoxylin and eosin; A, ×100; B, ×200; both before 35% reduction.) The Annals of Thoracic Surgery  , DOI: ( /S (97) )

4 Fig. 3 Photomicrographs show histologic changes of lung tissue from Wistar rat on day 3 after in vivo transfection of HVJ-liposome with prepro-ET-1 gene. Histologic section of the lung parenchyma shows alveolar septal thickening due to the interstitial mononuclear cell infiltrate and hyperplasia of the alveolar lining epithelium. No apparent concentric changes were seen in alveolar ducts and small conducting airways. (Hematoxylin and eosin; A, ×100; B, ×200; both before 35% reduction.) The Annals of Thoracic Surgery  , DOI: ( /S (97) )

5 Fig. 4 Photomicrographs showing histologic changes of lung tissue from a Wistar rat on day 7 after in vivo transfection of HVJ-liposome with prepro-ET-1 gene. Hyperplastic connective tissue plaques were seen in the alveolar duct and small conducting airway, identical to human bronchiolitis obliterans (A). Detail of an intrabronchiolar polyp of hyperplastic loose connective tissue (B). (Hematoxylin and eosin; A, ×100; B, ×200; both before 35% reduction.) The Annals of Thoracic Surgery  , DOI: ( /S (97) )

6 Fig. 5 Photomicrographs showing immunohistochemical study of lung tissue from a Wistar rat 7 days after in vivo transfection of HVJ-liposome with prepro-ET-1 gene (A) and HVJ-liposome with an empty expression cassette (B). Strong ET-1–like immunoactivity is seen in airway epithelium or vascular endothelium associated with severe morphologic changes. (Immunohistochemistry; ×100 before 35% reduction.) The Annals of Thoracic Surgery  , DOI: ( /S (97) )


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