MCM7 and infection: Subsequently, double immunofluorescence staining of liver sections revealed that MCM7 primarily colocalized with albumin (a hepatocyte-specific marker) in both S. japonicum-infected (8 weeks post-infection) and CCl4-treated (6 weeks post-treatment) samples, indicating its predominant localization within hepatocytes during fibrosis (Figs. 1H and S1J).