3836
Loss of tumor suppressor proteins , which function as brakes on cell growth , migration , or cell survival , was recognized early on as an important mechanism for initiation and progression of melanoma .
 tumor, cell, cell, melanoma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 tumor, cell, cell, melanoma