1380
Cultures were evaluated by two - color flow cytometry for percent representation of CD3 + IL8 + and CD3 + TNF - alpha + cells which express interleukin - 8 ( IL - 8 ) , and tumor necrosis factor - alpha , ( TNF - alpha + ) respectively , and by enzyme - linked immunoassay for lymphocyte - associated heme oxygenase - 1 ( HO - 1 , known to be induced by SCE ) .
 Chemical: heme
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: heme