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Therefore , the main objectives of the current work were to investigate the potentiality of SUN to induce CYP1A1 gene expression in human breast cancer MCF7 cells and to explore the molecular mechanisms involved .
 Chemical: SUN
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: SUN