A genetically tractable non-vertebrate system to study complete camera-type eye regeneration.

Area of Science:

• Developmental Biology
• Regenerative Medicine
• Neuroscience

Background:

• Camera-type eyes are complex sensory organs prone to irreversible damage.
• Studying eye repair is challenging due to a lack of suitable regeneration models.
• A genetically tractable organism capable of complete eye regeneration is needed.

Purpose of the Study:

• To introduce a novel model organism for studying camera-type eye regeneration.
• To investigate the anatomical and genetic aspects of eye regeneration in this model.
• To establish a platform for genetic manipulation in this organism.

Main Methods:

• Introduction of the apple snail, Pomacea canaliculata, as a model for eye regeneration.
• Anatomical characterization of the apple snail eye.
• Identification of genes involved in eye regeneration.
• Establishment of stable mutant lines in apple snails.

Main Results:

• Pomacea canaliculata demonstrates complete regeneration of camera-type eyes after resection.
• Key anatomical components and regenerative gene expression were defined.
• Stable mutant lines were successfully generated in apple snails.
• The gene pax6 was found to be essential for eye development, similar to humans.

Conclusions:

• Pomacea canaliculata is a viable and powerful model organism for studying complex camera-type eye regeneration.
• This research provides a new avenue for understanding the mechanisms underlying eye development and repair.
• The findings highlight conserved genetic pathways (e.g., pax6) in eye development across species.