Tooth Matrix Formation and Mineralization in Extant Fishes
Tooth Matrix Formation and Mineralization in Extant Fishes
复制标题
现存鱼类的牙基质形成和矿化
DOI：
10.1007/978-4-431-68132-8_74
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
Z. Skobe
中科院分区：
文献类型：
--
作者：
K. Prostak;P. Seifert;Z. Skobe
三种高度矿化的磷灰石组织覆盖在鱼牙的牙本质上：(A)含有基质的骨鱼釉质[1]，在一些硬骨鱼中，胶原由内牙齿上皮细胞分泌[2]，并在矿化过程中降解[3，4]。因此，这种釉质不同于牙釉质、牙本质和骨。(B)具有基质的软骨釉质，这是IDE细胞向其分泌碳水化合物的成牙本质细胞的一种独特的非胶原性产物[5，6]。(C)一种非胶原性的外胚层衍生的釉质样基质，见于翼手龙[7]、地龙[8]和全骨[9]的牙齿上。我们研究不同鱼类的牙齿发育，以阐明与哺乳动物牙齿发育的同源性，并表征牙齿形成的结构特征，这些结构特征调节釉质中氟(F)的水平[10]。在这里，我们报告了几种鱼类的超微结构和生化参数，说明了形成高度矿化的牙齿结构所使用的各种策略。
Three highly mineralized apatitic tissues cover dentin of fish teeth: (A) Osteichthian enameloid with matrix containing collagen [1] that, in some teleosts, is secreted by inner dental epithelial cells [2] and is degraded during the mineralization process [3, 4]. Therefore, this enameloid is different from enamel, dentin and bone. (B) Chondrichthian enameloid with matrix that is a unique non-collagenous product of odontoblasts to which IDE cells secrete carbohydrate [5,6]. (C) A non-collagenous, ectodermally derived, enamel-like matrix which is found on crossopterygian [7], dipnoan [8] and holostean [9] teeth. We research tooth development in diverse fish species to elucidate homology with mammalian odontogenesis and to characterize structural features of tooth formation which modulate the levels of fluoride (F) in the enameloid [10]. Here we report ultrastructural and biochemical parameters of several fish species illustrating various strategies used to form highly mineralized tooth structures.