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The results suggest that chronic exposure to high concentration of TGF - beta promotes the spontaneous neoplastic transformation of cultured rat liver epithelial cells , and that this process may represent one of the mechanisms of cellular adaptation for induction of the multidrug - resistant phenotype during the carcinogenesis of epithelial cells .
 neoplastic, liver epithelial cells, cellular, epithelial cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 neoplastic, liver epithelial cells, cellular, epithelial cells