Role of α6 integrin subunit in branching morphogenesis of fetal mouse submandibular gland: investigation by mesenchyme-free epithelial culture system
2009
The submandibular gland (SMG) of the fetal mouse is a well-studied model for the epithelial-mesenchymal interactions required for branching morphogenesis (BrM), which involves cleft formation and stalk elongation. In a previous report, we showed that 6 integrin subunit is involved in BrM of this gland rudiment, since the neutralizing an- tibody against 6 integrin subunit, GoH3, strongly inhibited branching of cultured in- tact E13 SMG. In this study, we investigated whether GoH3 inhibits cleft formation and/ or stalk elongation during BrM of cultured mesenchyme-free epithelial rudiments of fe- tal SMG and also analyzed by Western blotting the levels of phosphorylation of ERK1/2, which is a signaling molecule known to regulate BrM of the fetal mouse SMG. J. Med. Invest. 56 Suppl. : 247-249, December, 2009
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