2447
In parallel, increased levels of transcripts for IP-10 , a murine homologue in the chemokine family related to IL-8 , were observed in hypoxic lung tissue .
 IP-10, IL-8, chemokine family
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:
 IP-10, IL-8, chemokine family