HA35 induces β-defensin expression at colon epithelial cell surface.
Co-localization of biotinylated HA35 (green) and β-defensin (red),
co-localization (yellow) was detected in proximal colon (Panel A) or
distal colon (Panel B) cross sections from mice fed water or 300 µg of
biotinylated HA35 (b-HA35). Immunohistochemical staining with
streptavidin 488 for HA35 and rabbit anti-murine β-defensin, goat
anti-rabbit AlexaFluor 568 was performed as described in the “Materials
and Methods” section. Nuclei were stained with VectaShield containing
DAPI (blue). Image captured with Leica confocal and Image-Pro Plus
software. Panel A scale bars are 50 µm and inset 5 µm. Panel B scale
bars are 50 µm and inset 10 µm. Abbreviations: HA35, 35 kDa hyaluronan;
DAPI, 4′,6-diamidino-2-phenylindole, dihydrochloride.