Chemotherapy resistance of 5-fluorouracil:research advances
	    		
		   		
		   			
		   		
	    	
    	 
    	10.13220/j.cnki.jipr.2017.06.004
   		
        
        	
        		- VernacularTitle:5-氟尿嘧啶化疗耐药的研究进展
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Xin DING
			        		
			        		;
		        		
		        		
		        		
			        		Guojiang CHEN
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		5-fluorouracil;
			        		
			        		
			        		
				        		chemotherapy resistance;
			        		
			        		
			        		
				        		thymidylate synthase
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Journal of International Pharmaceutical Research
	            		
	            		 2017;44(6):491-494
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	5-Fluorouracil(5-FU)has been widely used to treat gastrointestinal,head,neck,chest and ovarian malignant tu-mors since 1957. As an analogue of pyrimidine,5-FU plays anti-cancer roles by inhibiting thymioylate synthase and integrating its me-tabolites into DNA and RNA. Although 5-FU is one of the first-line therapeutic compounds for gastrointestinal malignant tumor as a sin-gle drug or in combination with other drugs,its effectiveness is hindered by its low efficiency,which may be due to chemotherapy re-sistance. 5-FU chemotherapy resistance may stem from enzyme abnormality,genetic abnormality and tumor microenvironment. In this paper,we make a review about 5-FU actions and the mechanisms underlying chemotherapy resistance.