Immunohistochemistry and electron microscopy of retrocorneal scrolls in syphilitic interstitial keratitis

Murat Dogru, Naoko Kato, Yukihiro Matsumoto, Yoichi Tanaka, Naoko Akabane, Shigeto Shimmura, Kazuo Tsubota, Jun Shimazaki

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Purpose: To describe the immunohistochemical and electron microscopic characteristics of retrocorneal scrolls in syphilitic interstitial keratitis. Methods: Five eyes of five patients with congenital syphilitic interstitial keratitis who underwent keratoplasty for corneal opacities and corneal edema were studied. The corneal buttons were processed for histologic examination with hematoxylin and eosin staining and underwent immunohistochemistry stainings for collagen types I, III, IV, V, VI, VIII, fibronectin, laminin, and decorin. The corneal buttons were also processed for transmission electron microscopy and immunoelectron microscopy. Results: Light microscopy revealed that the retrocorneal scrolls had a multilayered, amorphous, acellular matrix. All scrolls were lined with attenuated corneal endothelial cells. The Descemet membranes in all specimens had areas of irregular thickening with attenuated endothelium. Immunohistochemical assessment of the scrolls showed positive staining for collagens I, III, IV, VI, VIII, fibronectin, laminin, and decorin but not for α -SMA. Immunoelectron microscopy confirmed these findings. Transmission electron microscopy showed multilaminar disorganized structures in scrolls composed of long- and short-fiber collagens. Conclusions: We confirmed the presence of collagens I, III, IV, VI, VIII and proteoglycans in the retrocorneal scrolls lined with attenuated endothelium. Our findings may provide further insight into the pathogenesis of keratopathy in syphilitic interstitial keratitis.

本文言語English
ページ(範囲)863-870
ページ数8
ジャーナルCurrent Eye Research
32
10
DOI
出版ステータスPublished - 2007 10月

ASJC Scopus subject areas

  • 眼科学
  • 感覚系
  • 細胞および分子神経科学

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