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Related Experiment Videos

Changes in retinal neuronal populations in the DBA/2J mouse.

Jung-Il Moon1, In-Beom Kim, Jae-Sung Gwon

  • 1Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Korea.

Cell and Tissue Research
|February 17, 2005
PubMed
Summary

DBA/2J mice exhibit retinal changes, including significant loss of retinal ganglion and some amacrine cells, crucial for glaucoma research. This mouse model aids in studying neuroprotection strategies for retinal neuronal death.

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Area of Science:

  • Ophthalmology
  • Neuroscience
  • Cell Biology

Background:

  • DBA/2J (D2) mice spontaneously develop progressive pigmentary glaucoma.
  • Understanding retinal histopathology in D2 mice is vital for glaucoma research.

Purpose of the Study:

  • To compare retinal cell populations in D2 mice with control C57BL/6J mice.
  • To identify specific neuronal populations affected in the D2 mouse retina during glaucoma development.

Main Methods:

  • Histopathological analysis of D2 mouse retinas.
  • Immunocytochemical staining for specific retinal neuronal markers (calbindin, PKC, recoverin, glycine, GABA, ChAT, NOS, OPN).

Main Results:

  • D2 mouse retinas showed reduced thickness, primarily in inner retinal layers.

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  • Significant decrease in GABAergic, cholinergic amacrine cells, and ganglion cells (OPN+).
  • Increase in nitrergic amacrine cells (NOS+); glycine amacrine cells, horizontal, and bipolar cells were unaffected.

    • Conclusions:

    • D2 mice exhibit selective loss of retinal ganglion and specific amacrine cell populations.
    • Alterations in GABAergic, cholinergic, and nitrergic neurons are implicated in D2 mouse glaucoma pathogenesis.
    • The D2 mouse retina is a valuable model for investigating glaucoma, neuronal death, and neuroprotection.