KENBIKYO
Online ISSN : 2434-2386
Print ISSN : 1349-0958
Lectures
Heterogeneity of Fusion Phenomena in Maxillo-facial Morphogenesis and Epithelial Cell Differentiation during the Fusion of Palatal Shelves
Toshiya Takigawa
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JOURNALS FREE ACCESS

2009 Volume 44 Issue 4 Pages 275-279

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Abstract

Although so-called ‘fusion’ morphologically divides into two different types, ‘ostensible fusion’ and ‘actual fusion’, very little is known about the heterogeneity of fusion in maxillo-facial morphogenesis. Moreover, the controversy concerning the mechanism of epithelial disappearance continues even to the fusion of palatal shelves, which has been most often researched as a model of ‘actual fusion’.In this paper, I explained the morphological difference between ‘ostensible fusion’ and ‘actual fusion’ in so-called ‘fusion’. In addition, I showed a case of epithelial disappearance by means of cell migration, epithelial –mesenchymal transformation, and apoptosis, in a single palatal shelf culture method of fetal mice. Such cell differentiation suggests how epithelial cells disappear during ‘actual fusion’.

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© 2009 The Japanese Society of Microscopy
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