10150
METHODS AND RESULTS: Incubation of human whole blood with platelet-activating factor ( PAF , 1 mumol/L) evoked downregulation of L-selectin and upregulation of CD11/CD18 adhesion receptors on neutrophils as measured by flow cytometry .
 adhesion receptors, PAF, CD11/CD18, platelet-activating factor, L-selectin
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:
 adhesion receptors, PAF, CD11/CD18, platelet-activating factor, L-selectin