13528
This study aimed at investigating arsenic - mediated intracellular redox status and signaling cascades leading to COX - 2 induction in human uroepithelial cells ( SV - HUC - 1 ) .
 Chemical: arsenic
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: arsenic