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To explore the function of human SINA - homologous ( Siah ) proteins , expression plasmids encoding Siah - 1A were transiently transfected into 293 epithelial cells and GM701 fibroblast cells , resulting in growth arrest without induction of apoptosis .
 SINA - homologous ( Siah ) proteins, Siah - 1A
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 SINA - homologous ( Siah ) proteins, Siah - 1A