ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (11): 1967-1973.doi: 10.11843/j.issn.0366-6964.2015.11.008

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A Method Used for Differential Staining and Apoptosis Cell Staining in Bovine Blastocyst

SUN Wei-jun1,YU Xue-ying1,2,HU Ting-xi1,3,GUO Qin-qin1,LIU Yan1,HAO Hai-sheng1,ZHAO Xue-ming1,ZHU Hua-bin1,DU Wei-hua1*   

  1. (1.Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China;2.Hebei University of Engineering,Handan 056000,China;3.Gansu Agricultural University,Lanzhou 730070,China)
  • Received:2015-02-16 Online:2015-11-23 Published:2015-11-23

Abstract:

 To evaluate the quality of bovine blastocysts efficiently and accurately,a triple immunofluorescence staining method was established in bovine blastocyst.The trophectoderm(TE) cells and apoptotic cells were identified with labeling of CDX2 protein and caspase-3 protein,respectively.All of nuclei in blastocyst cells were stained with Hochest 33342.Triple staining was designed as 3 schemes.PI was used to stain nuclei of TE cells and apoptotic cells were detected by TUNEL method in double staining.The results showed that the triple immunofluorescence staining,with 3 schemes,could distinguish the TE and apoptotic cells accurately.Additionally,co-incubation of 2 first antibodys/second antibodys was the most optimal method to triple staining in terms of accuracy,efficiency and stain duration.Therefore,in same blastocyst,identification the TE and apoptotic cells by labeling CDX2 and caspase-3 protein respectively was available to evaluate the quality of bovine blastocysts.Also,there were great advantages in triple staining compared with double staining.

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