10682
To investigate the immunotoxic properties of SY , splenocytes were isolated , cultured and subjected to mitogen stimulated proliferation assay ( lipopolysaccharide , LPS or concanavalin A , Con A ) , mixed lymphocyte reaction ( MLR ) assay , immunophenotypic analysis of cell surface receptor expression and assay for cytokines release in the culture supernatants were performed in the presence of SY .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None