19462
Spermatid transport thus requires the intricate coordination of the cytoskeletons in Sertoli cells ( SCs ) as spermatids are nonmotile cells lacking the ultrastructures of lamellipodia and filopodia , as well as the organized components of the cytoskeletons .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None