Article ID Journal Published Year Pages File Type
2049858 FEBS Letters 2008 7 Pages PDF
Abstract

The significance of collagen XVIII in the regulation of corneal reinnervation remains largely unknown. We used whole-mount immunoconfocal microscopy to localize collagen XVIII to the nerve basement membrane of wild-type (WT) mouse corneas. Transmission electron microscopy showed corneal nerve disorganization in collagen XVIII knockout mice (col18a1−/−). Antibody 2H3-specific neurofilament colocalized with collagens XVIII and IV and laminin-2 in WT mouse corneas, but did not colocalize with collagen IV and laminin-2 in col18a1−/− mouse corneas. Following keratectomy, col18a1−/− mice displayed decreased corneal neurite extension compared to WT mice. Our data indicate that collagen XVIII may play an important role in corneal reinnervation after wounding.

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