3870
Ectopic PTTG overexpression in a representative ESCC cell line , EC9706 , increased in vitro cell migration and invasion and promoted in vivo lymph node metastasis .
 ESCC cell line, EC9706, cell, lymph node
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 ESCC cell line, EC9706, cell, lymph node