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Northern blots of MT1-MMP and MT2-MMP mRNA in culture-activated stellate cells at passage 6 (HSC) and in freshly isolated hepatocytes (Hep). Note the strong expression of MT1-MMP mRNA in stellate cells, which contrasts with the low levels of MT2-MMP mRNA. Hepatocytes are positive for MT2-MMP mRNA only. Bottom: Transferred RNA stained with methylene blue.
