Down-regulation of Coxsakie and Adenovirus Receptor during Embryo Implantation
	    		
		   		
		   			
		   		
	    	
    	 
    	10.1007/sl1596-012-0018-6
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		LI YUFENG
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		ZHAO HUAN
			        		
			        		;
		        		
		        		
		        		
			        		WANG BEIBEI
			        		
			        		;
		        		
		        		
		        		
			        		CUI DANDAN
			        		
			        		;
		        		
		        		
		        		
			        		YUAN SUZHEN
			        		
			        		;
		        		
		        		
		        		
			        		HE XIAO
			        		
			        		;
		        		
		        		
		        		
			        		GUO NA
			        		
			        		;
		        		
		        		
		        		
			        		CHEN NINGNING
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		coxsackie and adenovirus receptor;
			        		
			        		
			        		
				        		embryo implantation;
			        		
			        		
			        		
				        		endometrium
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Journal of Huazhong University of Science and Technology (Medical Sciences)
	            		
	            		 2012;32(1):103-106
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	In this study,real-time PCR and immunohistochemistry were used to detect coxsakie and adenovirus receptor (CAR) expression.Both localization and quantity were evaluated in the uteri obtained at days post coitus (dpc) 2.5,4.5,6.5,8.5.Outcome of PCR was assessed by 2-△△Ct method.Image Pro-Plus 6.0 software was used for quantifying mean density of CAR expression in immunohistochemical sections.We found relatively weak CAR expression in the mouse uteri during implantation window.PCR and immunohistochemistry revealed highest CAR expression was detected on dpc 2.5 followed by down-regulation of CAR at dpc 4.5 and 6.5 (with significant difference).At dpc 8.5,CAR expression was increased slightly again.It is concluded that during implantation,the expression of CAR mRNA and protein is declined,resulting in the impairment of tight junction between cavity epithelium cells.After implantation window closure,CAR appears again to maintain epithelium stability.CAR might play an important role during embryo implantation procedure.