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Nestin expression during mouse eye and lens development.

J Yang1, W Bian, X Gao

  • 1Shanghai Institute of Biochemistry, Chinese Academy of Sciences, Shangei, People's Republic of China.

Mechanisms of Development
|June 8, 2000
PubMed
Summary
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Nestin, an intermediate filament protein, is crucial for developing ocular tissues. Its expression in the optic stalk, lens, and retina during embryonic development highlights its role in eye formation.

Area of Science:

  • Developmental biology
  • Ophthalmology
  • Cell biology

Background:

  • Nestin is an intermediate filament protein primarily found in the developing central nervous system and skeletal muscles.
  • Understanding the spatiotemporal expression of nestin is key to elucidating its role in tissue development.

Purpose of the Study:

  • To investigate the expression pattern of nestin during the embryonic and early postnatal development of the mouse eye.
  • To determine the localization of nestin mRNA and protein in ocular structures.

Main Methods:

  • In situ hybridization was used to detect nestin mRNA.
  • Immunohistochemistry was employed to visualize nestin protein.
  • Expression analysis was performed at various developmental stages from 9.0 days post coitus (dpc) to postnatal day 1.

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Main Results:

  • Nestin mRNA was detected in the optic stalk by 9.0 dpc and in the lens vesicle by 10.0 dpc.
  • Nestin protein appeared in the optic stalk by 9.5 dpc and in the lens by 10.5 dpc.
  • By 14.5 dpc, nestin was present in lens fibers, neuroretina, optic disc, optic nerve, and developing extrinsic ocular muscles, persisting in the optic nerve into adulthood.

Conclusions:

  • Nestin exhibits dynamic spatiotemporal expression during eye development, suggesting a significant role in the formation of ocular tissues.
  • The presence of nestin in the developing optic nerve and retina indicates its involvement in neural development within the eye.