Background: Numerous studies of tissues' regeneration have confessed the recovery of damaged liver by hematopoietic stem cells. The cells act not only by cell replacement in the target organ but also by delivering trophic factors that support endogenous liver regeneration. A little is known of how organ-derived signals recruit such committed cells into circulation. Objective: We investigated the roles of noninvasive mechanical percutaneous stress of cirrhotic human liver in numbers fluctuation of trophic, liver-specific alpha-fetoprotein-positive fraction of CD133-positive hematopoietic stem cells in lymphocytes of patients waiting for liver transplantation. Methods: To promote in blood the number of the alpha-fetoprotein-positive fraction of CD133-positive hematopoietic stem cells, committed to liver' tissue, we activated mechanically the cirrhotic liver of patient by transcutaneous micro vibration received from skin-contacted electromagnetic vibraphones generated mechanical pulses with amplitude 10 µm and smoothly changing frequency from 0.03 kHz to 18 kHz and back forth during one cycle duration 1 minute. The number of the alpha-fetoprotein-positive fraction of CD133-positive hematopoietic stem cells in lymphocytes of potential recipients was controlled by flow cytometry before and during daily sonication of skin area, which corresponds to liver projection on it. The 15 minutes cyclic sonication of the liver area performed daily for three weeks. Results: The sonication increased significantly averaged number of liver-specific alpha-fetoprotein-positive How to cite this paper: Shoutko, A.N., Gerasimova, O.A., Fedorov, V.A. and Zherebtsov, F.K. (2019) Non-Invasive Vibration-Stress of the Cirrhotic Liver of Patients Waiting for Transplantation Induces of Circulating CD133+ Stem Lymphocytes Committed Phenotypically toward the Liver.

Российский научный центр радиологии и хирургических технологий Минздрава РФ, Санкт-Петербург, Российская Федерация Соотношения субпопуляционного состава мононуклеарных клеток крови у 68 пациентов исследованы методом проточной цитометрии до и в течение первого месяца после трансплантации трупной печени с целью определения их возможного вклада в процессы приживления трансплантата. Полученные данные позволяют рассматривать изменения регуляторных Т-клеток после трансплантации как час-тный случай генерализованного смещения всего дифференцировочного процесса в лимфоцитопоэзе, начиная со стволовых гемопоэтических клеток и прелимфоцитов. Смещение сопровождается увели-чением юных гематопоэтических стволовых клеток, клеток предшественников лимфоцитарного ряда, клеток с ангиогенными свойствами и уменьшением большинства более зрелых дифференцирован-ных форм лимфоцитов. Ослабление «толерогенной» активности печени у больных в листе ожидания трансплантации печени и восстановление ее после трансплантации объяснено морфообразующим, трофическим механизмом. Основу этого механизма составляет увеличение в крови стволовых гемо-поэтических клеток и ангиогенных клеток, переносящих регенераторную информацию к трансплан-тату.Ключевые слова: трансплантация печени, лимфоциты, стволовые клетки, кинетика, дифференцировка клеток, морфогенез. FEATURES OF SUBPOPULATION COMPOSITION OF BLOOD LYMPHOCYTES IN RECIPIENTS WITHIN THE FIRST MONTH AFTER LIVER TRANSPLANTATION A.N. Shoutko, O.A. Gerasimova, L.P. Ekimova, F.K. Zherebtsov, A.M. Granov Russian Scientifi c Center for Radiology and Surgical Technologies of the Ministry of Healthcare of the Russian Federation, St-Petersburg, Russian FederationRatios of subpopulations of mononuclear blood cells in 68 patients were registered by method of fl ow cytometry during one month before or after transplantation of a cadaveric liver with the aim of a comparative assessment of the contribution of cellular factors into graft acceptance. Results. The obtained data allow considering the changes of separate Treg subpopulation after transplantation as a partial outcome of generalized shift of the whole process of lymphocytes differentiation, involving hematopoietic stem cells and prelymphocytes. This shift is followed by an increase of young hematopoietic stem cells, precursors of lymphocytes, angiogenic cells, and by a concomitant reduction of the majority of more matured subpopulations of lymphocytes. Conclusion. Diminishment of «tolerogenic» liver activity of before transplantation and its restoration after the organ's replacement is explained by morphogenic/trophic mechanism. The basis of this mechanism is an increase in blood of hematopoietic stem cells and other cells transferring angiogenic and regenerative information to the graft.

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