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Human mesenchymal stem cells (hMSCs) are considered to be a promising tool for novel cell-based therapies. Clinical applications in solid organ transplantation were hampered by the dependence on animal serum for hMSCs clinical scale expansion until substitution with human platelet lysate (HPL) became a promising alternative. Therefore we focused on a direct comparison of immunomodulatory properties of hMSCs cultured in HPL or fetal calf serum (FCS). Phenotypic characterization, detection of cytokine secretion and effects on alloantigen- and mitogen-induced lymphocyte proliferation as well as degranulation of cytomegalovirus-specific cytotoxic T cells were applied in potency assays. We demonstrated that HPL-cultured MSCs have comparable immunomodulatory capacities to their FCS-cultured counterparts. The observed immunomodulatory properties include a beneficial inhibitory effect on immune cell proliferation and an unaffected viral T cell immunity. Thus, culturing hMSCs in HPL generates an efficient and safe expansion combined with intriguing immunomodulatory properties making these cells an attractive cell therapeutic tool.
Institute of Medical Immunology, Universitätsmedizin Charité, Campus Virchow Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
This article was published in the following journal.
Name: Journal of clinical immunology
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Bone-marrow-derived, non-hematopoietic cells that support HEMATOPOETIC STEM CELLS. They have also been isolated from other organs and tissues such as UMBILICAL CORD BLOOD, umbilical vein subendothelium, and WHARTON JELLY. These cells are considered to be a source of multipotent stem cells because they include subpopulations of mesenchymal stem cells.
The transference of BONE MARROW from one human or animal to another for a variety of purposes including HEMATOPOIETIC STEM CELL TRANSPLANTATION or MESENCHYMAL STEM CELL TRANSPLANTATION.
Transplantation of stem cells collected from the peripheral blood. It is a less invasive alternative to direct marrow harvesting of hematopoietic stem cells. Enrichment of stem cells in peripheral blood can be achieved by inducing mobilization of stem cells from the BONE MARROW.
The process of generating white blood cells (LEUKOCYTES) from the pluripotent HEMATOPOIETIC STEM CELLS of the BONE MARROW. There are two significant pathways to generate various types of leukocytes: MYELOPOIESIS, in which leukocytes in the blood are derived from MYELOID STEM CELLS, and LYMPHOPOIESIS, in which leukocytes of the lymphatic system (LYMPHOCYTES) are generated from lymphoid stem cells.
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Track and monitor developments in stem cell research and commercial development. Follow the tabs above to read the latest global news, research, clinical trials on stem cells and follow companies active in the stem cell industry. BioPort...