13445
In contrast to the differential signaling of BW 828 and 9.3 in resting T cells, the two mAbs exhibited a similar pattern of early signaling events in activated T cells and Jurkat cells ( p56(lck) activation , association of phosphatidylinositol 3-kinase with CD28 ), indicating that the signaling capacity of CD28 changes with activation.
 BW 828, CD28, 9.3, p56(lck), phosphatidylinositol 3-kinase, Jurkat cells, activated T cells, CD28
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:
 BW 828, CD28, 9.3, p56(lck), phosphatidylinositol 3-kinase, Jurkat cells, activated T cells, CD28