Abstract
It is well known that long-term space missions influence various myeloid shoots of hemopoiesis in humans and animals. In this investigation, we used several optimized models of co-culturing mesenchymal stromal cells (MSCs) and hemopoietic stem and progenitor cells (HSPCs) to analyze the HSPCs suspension fractions following 7-day modeling of the effects of microgravity. We determined the number of developing HSPCs, presence of colony-forming units (CFU) of various hemopoietic shoots and phenotype spectrum of cells in colonies. We observed an increased number of HSPCs, decreased number of CFUs, and changes in the structure of CFU population after the exposure to modeled microgravity.
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