Differential vulnerability of neurochemically identified subpopulations of retinal neurons in a monkey model of glaucoma

J. C. Vickers, R. A. Schumer, S. M. Podos, R. F. Wang, B. M. Riederer, John Morrison

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

The vulnerability of subpopulations of retinal neurons delineated by their content of cytoskeletal or calcium-binding proteins was evaluated in the retinas of cynomolgus monkeys in which glaucoma was produced with an argon laser. We quantitatively compared the number of neurons containing either neurofilament (NF) protein, parvalbumin, calbindin or calretinin immunoreactivity in central and peripheral portions of the nasal and temporal quadrants of the retina from glaucomatous and fellow non-glaucomatous eyes. There was no significant difference between the proportion of amacrine, horizontal and bipolar cells labeled with antibodies to the calcium-binding proteins comparing the two eyes. NF triplet immunoreactivity was present in a subpopulation of retinal ganglion cells, many of which, but not all, likely correspond to large ganglion cells that subserve the magnocellular visual pathway. Loss of NF protein-containing retinal ganglion cells was widespread throughout the central (59-77% loss) and peripheral (96-97%) nasal and temporal quadrants and was associated with the loss of NF-immunoreactive optic nerve fibers in the glaucomatous eyes. Comparison of counts of NF-immunoreactive neurons with total cell loss evaluated by Nissl staining indicated that NF protein-immunoreactive cells represent a large proportion of the cells that degenerate in the glaucomatous eyes, particularly in the peripheral regions of the retina. Such data may be useful in determining the cellular basis for sensitivity to this pathologic process and may also be helpful in the design of diagnostic tests that may be sensitive to the loss of the subset of NF-immunoreactive ganglion cells.

Original languageEnglish (US)
Pages (from-to)23-35
Number of pages13
JournalBrain Research
Volume680
Issue number1-2
DOIs
StatePublished - May 22 1995
Externally publishedYes

Fingerprint

Retinal Neurons
Glaucoma
Haplorhini
Intermediate Filaments
Neurofilament Proteins
Retina
Calcium-Binding Proteins
Retinal Ganglion Cells
Nose
Ganglia
Calbindin 2
Neurons
Calbindins
Parvalbumins
Visual Pathways
Macaca fascicularis
Argon
Pathologic Processes
Optic Nerve
Nerve Fibers

Keywords

  • Calcium-binding protein
  • Glaucoma
  • Neurofilament
  • Retina

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

Cite this

Differential vulnerability of neurochemically identified subpopulations of retinal neurons in a monkey model of glaucoma. / Vickers, J. C.; Schumer, R. A.; Podos, S. M.; Wang, R. F.; Riederer, B. M.; Morrison, John.

In: Brain Research, Vol. 680, No. 1-2, 22.05.1995, p. 23-35.

Research output: Contribution to journalArticle

Vickers, J. C. ; Schumer, R. A. ; Podos, S. M. ; Wang, R. F. ; Riederer, B. M. ; Morrison, John. / Differential vulnerability of neurochemically identified subpopulations of retinal neurons in a monkey model of glaucoma. In: Brain Research. 1995 ; Vol. 680, No. 1-2. pp. 23-35.
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