Analysis of cell survival genes in human gingival fibroblasts after sequential release of trichloroacetic acid and epidermal growth factor using the nano-controlled release system
	    		
		   		
		   			
		   		
	    	
    	 
    	10.14368/jdras.2020.36.3.145
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Joon Youn CHO
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Richard LEESUNGBOK
			        		
			        		;
		        		
		        		
		        		
			        		Suk Won LEE
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
            
            
            	- From:Journal of Dental Rehabilitation and Applied Science
	            		
	            		 2020;36(3):145-157
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	 Purpose:This study was to determine the possible effects of trichloroacetic acid (TCA) and epidermal growth factor (EGF) through cell survival genes of the PI3K-AKT signaling pathway when applying an hydrophobically modified glycol chitosan (HGC)-based nanocontrolled release system to human gingival fibroblasts in oral soft tissue regeneration.  
				        	
				        
				        	Materials and Methods:An HGC-based nano-controlled release system was produced, followed by the loading of TCA and EGF. The group was divided into control (CON), TCA-loaded nano-controlled release system (EXP1), and the TCA- and EGF- individually loaded nano-controlled release system (EXP2).A total for 29 genes related to the PI3K-AKT signaling pathway were analyzed after 48h of culture in human gingival fibroblasts.Real-time PCR, 1- way ANOVA and multiple regression analysis were performed.  
				        	
				        
				        	Results:Cell survival genes were significantly upregulated in EXP1 and EXP2. From multiple regression analysis, ITGB1 was determined to be the most influential factor for AKT1 expression.  
				        	
				        
				        	Conclusion:The application of TCA and EGF through the HGC-based nano-controlled release system can up-regulate the cell survival pathway.