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Yamane, K., Minamoto, A., Yamashita, H., Takamura, H., Miyamoto-Myoken, Y., Yoshizato, K., Nabetani, T., Tsu gita, A. and Mishima, H. (2003) Proteome analysis of human vitreous proteins. Molecular & Cellular Proteomics, 2, 1177-1187.

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• TITLE: Structure of vitreous body and its relationship with liquefaction

  AUTHORS: Makoto Kodama, Toyoaki Matsuura, Yoshiaki Hara

  KEYWORDS: Vitreous Body; Liquefaction; Crystallin

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.6 No.7, July 18, 2013

  ABSTRACT: The aim of the study is to clarify the vitreous body structure and liquefaction phenomena. It was found that when melting a frozen rabbit vitreous body, the gel-sol transition phenomenon occurs and the gel structure is broken. This is almost like the liquefaction of the vitreous body in vivo. We try to clarify the liquefaction phenomenon by using this animal model. The native vitreous body has three dimensional meshwork structures. After liquefaction, it is changed into two parts, namely fiber aggregates and soluble amorphous aggregates. The surface of native vitreous body meshwork is mucopolysacharide, but that of fiber aggregates after liquefaction is changed into connective tissue, which means the conformational change of vitreous body in liquefaction. The soluble proteins after liquefaction were analyzed and identified as crystallin family. It is suggested that the liquefaction is induced by detachment of non-collagenous protein beads containing crystallins, resulting in the collapse of the three dimensional structure to release watery liquid trapped within. And the new gel-sol transition model of vitreous bod is proposed.