962
Individually , the use of different lentivirally delivered shRNA constructs targeting two functionally distinct HH - processing proteins , skinny hedgehog ( SKN ) or dispatched - 1 ( DISP - 1 ) , in NSCLC cell lines produced similar decreases in cell proliferation and increased cell death .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None