8841
In this study we examined hepatic stellate cell regulation of M6P / IGFIIR expression and found that M6P / IGFIIR mRNA transcript levels increased in stellate cells from rats exposed to carbon tetrachloride ( CCl4 ) , a potent fibrogenic stimulant .
 M6P, IGFIIR, M6P, IGFIIR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 M6P, IGFIIR, M6P, IGFIIR