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KMID : 1102020170470040272
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Applied Microscopy
2017 Volume.47 No. 4 p.272 ~ p.250
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Morphological Study on the Correlation of Prenatal and Postnatal Development between Mouse Parotid Salivary Gland and Tooth
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Jeong Soon-Jeong
Jeong Moon-Jin
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Abstract
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The purpose of this study was to characterize the prenatal and postnatal development of the mouse parotid salivary gland and tooth, and to investigate the relationship between the developmental timing of the two organs. Development of parotid salivary gland begins on embryonic day 15 (E15), which is the prebud stage; E17 is the initial bud stage; E21 to postnatal day 3 (PN3) is the pseudoglandular stage; PN5 to PN10 is the canalicular stage; and PN21 is the terminal bud stage. At E15, the developing maxillary molar tissue is at the bud stage; at E17, it is at the cap stage; at E21, it is at the early bell stage; PN3 to PN5 comprises the advanced bell stage; at PN10, it is at the crown stage; at PN21, it is at the functional stage. Therefore, unlike the other major salivary glands, the development of mouse parotid salivary gland is completed through a process of prenatal and postnatal morphogenesis and becomes functional at about the same time as the developing tooth. The developmental completion times of the parotid salivary gland and tooth are closely related to the weaning time of animal.
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KEYWORD
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Development, Morphogenesis, Mouse, Parotid salivary gland, Tooth
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