The Risks of Gene Editing
        
            By Stuart A. Newman and M.L. Tina Stevens, 
                The New York Review
             | 05. 23. 2021
        
                    
                                    
                    
                                                                                                                                    
                                                                            
                              
    
  
  
    
  
          
  
      
    
            
In her recent review of four books on the prospects of applying CRISPR and related gene modification technologies to the improvement of human biology [“Editing Humanity’s Future,” NYR, April 29], Natalie de Souza appropriately emphasizes the safety of such manipulations as a fundamental requirement, as well as the profound social ramifications of decisions to use these technologies. What de Souza, in common with the authors of all the books under review, sidesteps, however, is that “safety” means entirely different things when therapeutic alterations of the tissues of a mature body are considered, in contrast to those that are administered at early embryonic stages. The engineering of retinal cells to relieve blindness, for example, is not comparable to ridding embryos of genes associated with cystic fibrosis, HIV susceptibility, or sickle cell disease.
Body cell, or “somatic,” modification is in line with traditional medical practice, where a sick person undergoes a procedure or takes a drug that may be the best means for saving their life or sparing them...
 
       
 
  
 
    
    
  
   
                        
                                                                                
                 
                                                    
                            
                                  
    
  
  
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