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The Cone Matrix Sheath In The Normal And Diseased Retina: Cytochemical And Biochemical Studies Of Peanut Agglutinin-Binding Proteins In Cone And Rod-Cone Degeneration, Kenneth Long, Gustavo Aguirre
The Cone Matrix Sheath In The Normal And Diseased Retina: Cytochemical And Biochemical Studies Of Peanut Agglutinin-Binding Proteins In Cone And Rod-Cone Degeneration, Kenneth Long, Gustavo Aguirre
Gustavo D. Aguirre, VMD, PhD
The fate of the cone-associated extracellular domain, or cone matrix sheath (CMS), was examined in two canine models of hereditary retinal degeneration. The diseases, which affect cones selectively (cd = cone degeneration), or rods and cones temporally (prcd = progressive rod-cone degeneration), were examined biochemically (SDS-PAGE/lectinblots) and cytochemically (light microscopy) using peanut agglutinin lectin (PNA) to selectively label this domain and associated structures. Most of the cones had disappeared in the adult cd retina. In the remaining cones, PNA labeled the ectopically located somata and the CMSs that were present around severely diseased ones. …