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The human granulocyte-macrophage CSF ( GM-CSF ) gene is expressed in T cells in response to TCR activation that can be mimicked by treatment of the cells with PMA and Ca2+ ionophore .
 human granulocyte-macrophage CSF ( GM-CSF ) gene, human granulocyte-macrophage CSF, T cells, GM-CSF, TCR
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:
 human granulocyte-macrophage CSF ( GM-CSF ) gene, human granulocyte-macrophage CSF, T cells, GM-CSF, TCR