Corneal abnormalities in Pax6(+/-) mice are similar to those in aniridia-related keratopathy in PAX6(+/-) patients. This extends the relevance of this mouse model of human aniridia to include corneal abnormalities. Incursion of goblet cells suggests impaired function of Pax6(+/-) limbal stem cells, abnormal expression of cytokeratin 12 may result in greater epithelial fragility, and corneal opacities in older mice may reflect poor wound-healing responses to accumulated environmental insults.
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Ramaesh et al. (2003) studied this question.
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