Di Bella Maria Antonietta, Carbone Maria Carmela, De Leo Giacomo
Dipartimento di Biopatologia e Metodologie Biomediche, Università degli Studi di Palermo, Via Divisi 83, 90133 Palermo, Italy.
Micron. 2005;36(5):477-81. doi: 10.1016/j.micron.2005.01.007. Epub 2005 Apr 1.
Renewal of cell population is needed in the tunic of ascidians, as the tunic cells are involved in many biological functions. Tunic cells are thought to arrive by migrating across the mantle epithelium into the tunic from the blood lacunae or the mesenchymal space. Electron microscope observations show that the mantle epithelium of Ciona intestinalis shares some proliferative characteristics, releasing cells into the tunic and thus providing an increase renewal of tunical cells in restricted zones of adult animals.
由于被囊细胞参与许多生物学功能，海鞘被囊需要细胞群体的更新。被囊细胞被认为是通过穿过外套膜上皮，从血腔或间充质空间迁移到被囊中而到达的。电子显微镜观察表明，玻璃海鞘的外套膜上皮具有一些增殖特性，将细胞释放到被囊中，从而在成年动物的受限区域增加被囊细胞的更新。
