1671
Although this pathway is activated by autocrine signaling by Hedgehog ligands , it can also initiate paracrine signaling with cells in the microenvironment .
 Anatomy: cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: cells