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Related Experiment Video

Updated: Jun 15, 2025

Microinjection of DNA into Eyebuds in Xenopus laevis Embryos and Imaging of GFP Expressing Optic Axonal Arbors in Intact, Living Xenopus Tadpoles
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Temporal Transcriptomic Profiling of the Developing Xenopus laevis Eye.

Samantha J Hack1, Juli Petereit2, Kelly Ai-Sun Tseng3

  • 1Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, USA.

Cells
|August 28, 2024
PubMed
Summary
This summary is machine-generated.

This study maps the molecular signatures of retinal progenitor cells (RPCs) during development and regeneration in Xenopus. Understanding RPC gene expression is crucial for developing treatments for visual impairments.

Keywords:
NotchXenopuscell signalingeye developmentocular transcriptomeretinaretinal progenitor cells

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Area of Science:

  • Developmental Biology
  • Ophthalmology
  • Genomics

Background:

  • Retinal progenitor cells (RPCs) generate all retinal cell types.
  • Understanding RPC molecular signatures is vital for treating visual impairments.

Purpose of the Study:

  • To define the transcriptomic profiles of RPCs during retinogenesis in Xenopus.
  • To identify molecular regulators of RPC proliferation and differentiation.

Main Methods:

  • RNA sequencing of whole Xenopus eyes at three embryonic stages.
  • Differential gene expression analysis.
  • Gene Ontology and KEGG pathway analyses.

Main Results:

  • Upregulation of developmental pathways (Wnt, Hedgehog) during RPC proliferation.
  • Enrichment of metabolic and phototransduction genes during differentiation.
  • Expression of conserved eye regeneration genes (sox2, pax6, nrl, Notch signaling).

Conclusions:

  • The study provides a comprehensive transcriptomic resource for RPCs during retinogenesis.
  • Identified key developmental and regenerative genes offer insights into RPC regulation.
  • This dataset aids future research into eye repair and regeneration mechanisms.