Special Issue on “Cellular and Molecular Mechanisms Underlying the Pathogenesis of Hepatic Fibrosis”

Introduction. The development of life-threatening complications in chronic hepatitis C (CHC) is based on progressive fibrogenesis. The developing of liver fibrosis is provided by intercellular interactions, first of all, of lymphocytes, macrophages and stellate cells (SC), the patterns of mutual influences of which have not been sufficiently studied at the moment.The objective was to study the features of intercellular interplay of nonparenchymal liver cells at different histological activity, at different stages of CHC fibrosis, and at different genotypes of the hepatitis C virus (HCV).Methods and materials. The object of the study was 64 liver biopsies of adult patients with natural course of CHC. Нistological, immunohistochemical and immunohistomorphometric methods were used.Results. The increasing histological activity is accompanied by an increase in the number and size (area) of CD68 + macrophages and SMA-alfa + SC. Correlation relationships of intercellular interactions at low and moderate histological activity had significant differences. In mild fibrosis, a relationship was found between the number of CD8 + lymphocytes, the number and area of CD68 + macrophages and SMA-alfa + SC. HCV genotype 1 is characterized by a predominance of the interactions between the number of CD8 + lymphocytes, the number and area of CD68 + macrophages in the liver, for genotype 3 – between the number of CD8 + lymphocytes, the number and area of SMA + SC.Conclusions. The maximum activation of SC and macrophages occurs even with moderate histological activity and persists with an increase. The consolidation of the immunopathological nature of the intercellular interplay between lymphocytes, macrophages and SC occurs at the stage of mild fibrosis. Intercellular interactions have significant differences depending on the HCV genotype, which can determine a poor prognosis of the disease.

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Special Issue on “Cellular and Molecular Mechanisms Underlying the Pathogenesis of Hepatic Fibrosis”

Cited by 6 publications

References 53 publications

Effects of mesenchymal stem cells conditioned medium treatment in mice with cholestatic liver fibrosis

Effects of mesenchymal stem cells conditioned medium treatment in mice with cholestatic liver fibrosis

TNFRSF12A mRNA Expression and Distribution of TNFRSF12A+ Cells in the Rate Liver during Thioacetamide-Induced Fibrogenesis

Intercellular interactions and their role in fibrogenesis in chronic hepatitis C

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