ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2013, Vol. 44 ›› Issue (9): 1445-1453.doi: 10.11843/j.issn.0366-6964.2013.09.016

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The Culturing Method of Neonatal Piglet Oral Mucosal Epithelial Cells in vitro

MA Rui-li1,2, ZHANG Yan-ming1*, CUI Hong-jie1, GUO Kang-kang1   

  1. (1. College of Veterinary Medcine, Northwest A&F University, Yangling 712100, China;2. College of life Sciences, Northwest A&F University, Yangling 712100, China)
  • Received:2013-03-18 Online:2013-09-23 Published:2013-09-23

Abstract:

The aim of this study was to establish the culture method of piglet oral mucosal epithelial cells in vitro. Piglet buccal cells were cultured and subcultured with the direct explant technique, trypsin digestion, combined method of Dispaseand trypsin digestion, and Dispase combined with explant technique. Morphological characteristics were observed under the light microscope and transmission electron microscope (TEM). For second cultures, the expression of cytokeratin was detected by indirect immunofluorescence, cell growth curve was measured by MTT methodcell cycle distribution was evaluated by flow cytometry. The results showed that in the same culture medium the explant technique and enzymatic method were not successful, the cells obtained by the method of combination of dispaseand trypsin digestion were difficult to attach and grow, but the cells obtained by the combination of Dispase and explant technique proliferated quickly, and were of high purity, which can be passaged continuously till to the 10-11 generations, and the cells were identified with the characteristics of oral mucosal epithelial cells. The culture method of piglet oral mucosal epithelial cells in vitro has been established successfully, which may provide ideal research material for study the immortalization of oral mucosal epithelial cells, swine foot-and-mouth disease (FMD) pathogenesis and its vaccine.

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