January 1996
Volume 37, Issue 1
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Articles  |   January 1996
Immunohistochemical characterization of developing and mature primate retinal blood vessels.
Author Affiliations
  • R F Gariano
    Department of Biological Structure and Ophthalmology, University of Washington, Seattle, USA.
  • M L Iruela-Arispe
    Department of Biological Structure and Ophthalmology, University of Washington, Seattle, USA.
  • E H Sage
    Department of Biological Structure and Ophthalmology, University of Washington, Seattle, USA.
  • A E Hendrickson
    Department of Biological Structure and Ophthalmology, University of Washington, Seattle, USA.
Investigative Ophthalmology & Visual Science January 1996, Vol.37, 93-103. doi:
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    • Get Citation

      R F Gariano, M L Iruela-Arispe, E H Sage, A E Hendrickson; Immunohistochemical characterization of developing and mature primate retinal blood vessels.. Invest. Ophthalmol. Vis. Sci. 1996;37(1):93-103.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

PURPOSE: To characterize developing retinal blood vessels with vascular markers and to relate the histochemical profile of maturing vessels to morphologic stages in retinal vascular development. METHODS: Vessels were examined in frozen and paraffin-embedded retinas and in wholemounts of Macaca monkeys ranging in age from fetal day 75 (F75) to adulthood. Endothelial cells were visualized immunohistochemically using antisera to von Willebrand's factor and CD31 with lectins Ulex europaeus, Bandeiraea simplicifolia, peanut agglutinin, Ricinis communis, and wheat germ agglutinin, and by ATPase and ADPase enzymatic histochemistry. Antibodies to vascular basement membrane and matrix markers laminin, fibronectin, and collagen types I and VIII, and antisera recognizing cell cycle-specific nuclear proteins (cyclin, Ki-67, Mib-1) also were used. RESULTS: Newly formed and mature vessels were reactive with reagents specific for CD31, von Willebrand's factor, types I and VIII collagens, laminin, fibronectin, U. europaeus, R. communis, and peanut agglutinin. Wheat germ agglutinin labeled vessels only after pretreatment with neuraminidase. All vascular markers appeared simultaneously, but some were distributed differentially between capillaries and larger vessels, along the central-peripheral extent of a vascular plexus, and among different vascular laminae. Markers of vessels failed to label spindle-shaped presumed vascular precursor cells lying peripheral to the advancing vessels during development. Spindle cells exhibited cyclin, Ki-67, and Mib-1 immunoreactivity. CONCLUSIONS: Immature and mature vitread and sclerad vessels displayed histochemical profiles that were qualitatively similar but that had subtle quantitative differences. Results do not support identification of spindle-shaped cells as vascular precursors in the developing monkey retina and are discussed in relation to mechanisms of retinal vascularization.

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