PAX6: 25th anniversary and more to learn

Area of Science:

• Developmental Biology
• Genetics
• Evolutionary Biology

Background:

• The paired-box gene 6 (PAX6) was identified 25 years ago through research into eye disease genes and conserved regulatory genes.
• PAX6 homologues are vital pattern-forming genes in vertebrates, homologous to those found in Drosophila.

Observation:

• Studies on Pax6 have significantly advanced understanding of eye morphogenesis, evolution of visual systems, and development of the central nervous system and pancreas.
• PAX6 is expressed not only in the eye but also in the central nervous system and pancreas, indicating broader developmental roles.

Findings:

• Genetic, cellular, and molecular studies on Pax6 have revolutionized the understanding of the genetic programs governing eye development.
• Genome-wide sequencing technologies offer unbiased insights into the regulatory networks controlling ocular cell specification, determination, and differentiation.

Implications:

• Continued research on Pax6 in model organisms, combined with new sequencing technologies, promises to unravel the intricate steps of eye development from early cell types to its final structure.
• Understanding PAX6's role is key to reconstructing the developmental pathways of the eye and neurogenesis.