6224
Analysis of cell lines Daudi and THP-1 that differentially express gamma(c) and IL-13R alpha1 showed that IL-13 can activate STAT6 in IL-13R alpha1 -positive THP-1 cells but not in gamma(c)-positive, IL-13R alpha1 -negative Daudi cells .
 IL-13R alpha1, Daudi, IL-13R alpha1, IL-13R alpha1, IL-13R alpha1 -positive THP-1 cells, gamma(c), IL-13, gamma(c)-positive, IL-13R alpha1 -negative Daudi cells, THP-1, cell lines, STAT6
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:
 IL-13R alpha1, Daudi, IL-13R alpha1, IL-13R alpha1, IL-13R alpha1 -positive THP-1 cells, gamma(c), IL-13, gamma(c)-positive, IL-13R alpha1 -negative Daudi cells, THP-1, cell lines, STAT6