25718
Immunofluorescent staining of both cell types revealed protein expression indicative of the formation of a reabsorptive barrier responsive to mechanical stimulation : ZO - 1 ( tight junction ) , paxillin ( focal adhesions ) and acetylated alpha - tubulin ( primary cilia ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None