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Thus, overall, our results demonstrate that a PTPase is involved either directly or indirectly in the pathway leading to the induction of endothelial cell adhesion molecules by TNF .
 adhesion molecules, PTPase, TNF, endothelial cell adhesion molecules
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 adhesion molecules, PTPase, TNF, endothelial cell adhesion molecules