| Summary: | The purpose of this study was to study the cotransplantation influence of multipotent mesenchymal stromal (MMSC) and hepatic stellate (HSC) cells on liver regeneration of old laboratory animals in conditions of its toxic damage. Acute toxic hepatitis was caused by single intraperitoneal CC14 injection at a dose of 50 μg/kg. The introduction of MMSC and HSC was carried out at doses of 4 million cl/kg and 9 million cl/kg respectively 1 hour after toxic hepatitis modelling. The morphofunctional liver state of old laboratory mice was evaluated on the 1st, 3rd, 7th day after combined injection of MMSC and HSC in laboratory animals with toxic hepatitis. As a result of the study, it was obtained that MMSC and HSC cotransplantation leads to cellular and intracellular liver regeneration activation in old mice with acute toxic hepatitis. Also, the introduction of these cell types leads to decreased liver mutagenesis, inhibition of programmed cellular hepatocytes death. Thus, the conducted studies indicate the ability of combined MMSC and HSC transplantation to restore the morphofunctional liver state of the old organism under the conditions of its toxic damage.
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