Andrey Elchaninov has been the head of the Growth and Development Laboratory at the Avtsyn Research Institute of Human Morphology, FSBI Petrovsky National Research Centre of Surgery in Moscow, Russia since 2023. He is also a Professor at the National Medical Research Center Of Obstetrics, Gynecology And Perinatology Named After Academician V.I. Kulakova, Moscow, Russia. His research focuses on mammalian liver regeneration, particularly the molecular and cellular mechanisms underlying this process, as well as the immune system’s role, specifically the spleen, and macrophage activity. He uses a murine model involving 70% liver resection to investigate liver mass recovery. His methodological approach includes histological analysis, immunocytochemistry, immunohistochemistry, magnetic cell sorting, flow cytometry, and both transcriptomic and proteomic profiling. Among his key findings is the discovery that monocytes and granulocytes migrate into the regenerating liver, with the spleen serving as the primary source of these leukocytes.