August 1991
Volume 32, Issue 9
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Articles  |   August 1991
Tissue distribution of type VIII collagen in human adult and fetal eyes.
Author Affiliations
  • Y Tamura
    Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Tokyo, Japan.
  • H Konomi
    Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Tokyo, Japan.
  • H Sawada
    Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Tokyo, Japan.
  • S Takashima
    Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Tokyo, Japan.
  • A Nakajima
    Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Tokyo, Japan.
Investigative Ophthalmology & Visual Science August 1991, Vol.32, 2636-2644. doi:
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      Y Tamura, H Konomi, H Sawada, S Takashima, A Nakajima; Tissue distribution of type VIII collagen in human adult and fetal eyes.. Invest. Ophthalmol. Vis. Sci. 1991;32(9):2636-2644.

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Abstract

The type VIII collagen tissue distribution in human adult (32-78 yr of age) and fetal (16-27 weeks of gestation) eyes was studied immunohistochemically using a monoclonal antibody to type VIII collagen. Type VIII collagen was distributed in a linear or fibrous fashion in adult eyes in Descemet's membrane of the cornea, the trabecular meshwork, the walls of Schlemm's canal, Bruch's membrane, the choroidal stroma, the sclera, the cribriform plates of the optic nerve, and the intima of the central retinal artery. The staining in the central retinal artery was similar to that of type IV collagen. No distinct positive staining was seen in other blood vessels. When fetal eyes were examined, significant differences in positive staining were found between adults and fetuses in the sclera. In fetal eyes, the posterior sclera was strongly stained; however, the positive staining gradually decreased, and in the equatorial area it disappeared. The cribriform plates of the lamina cribrosa and the presumptive Bruch's membrane in fetal eyes did not react with the antibody. The trabecular meshwork and Descemet's membrane, but no other part of anterior section of fetal eyes, reacted with the antibody.

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