6233
In this paper we shall advance the hypothesis that: (i) TNF-alpha indirectly controls immune surveillance ; and (ii) TNF-alpha controls DNA repair and tumor suppression through the regulation of wild type p53 .
 ( protein: TNF-alpha, None) , ( protein: wild type p53, None) , ( protein: TNF-alpha, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: TNF-alpha, None) , ( protein: wild type p53, None) , ( protein: TNF-alpha, None) 