5482
Northern blot analysis as well as Ab blocking and cytokine secretion studies indicated that the induction of either endogenous TNF-alpha or IL-10 was not involved in the cooperativity, nor was an up-regulation of TNF-alpha receptors .
 ( protein: TNF-alpha, None) , ( protein: IL-10, None) , ( protein: TNF-alpha, None) , ( protein: TNF-alpha receptors, None) , ( protein: endogenous TNF-alpha, None) , ( protein: cytokine, 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: IL-10, None) , ( protein: TNF-alpha, None) , ( protein: TNF-alpha receptors, None) , ( protein: endogenous TNF-alpha, None) , ( protein: cytokine, None) 