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Recent work has identified a mouse gene ( tsg101 ) whose inactivation in fibroblasts results in cellular transformation and the ability to produce metastatic tumors in nude mice .
 Disease: metastatic tumors
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: metastatic tumors