4148
The BRCA1 gene product was identified as a 220 - kilodalton nuclear phosphoprotein in normal cells , including breast ductal epithelial cells , and in 18 of 20 tumor cell lines derived from tissues other than breast and ovary .
 tumor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 tumor