TY - JOUR TI - Human Schwann Cells in vitro II. Passaging, Purification, Banking, and Labeling of Established Cultures AU - Monje, Paula V VL - 13 IS - 22 PY - 2023 DA - 2023/11/20 SP - e4882 C1 - Bio-protocol 2023;13:e4882 DO - 10.21769/BioProtoc.4882 UR - https://doi.org/10.21769/BioProtoc.4882 AB - This manuscript describes step-by-step procedures to establish and manage fresh and cryopreserved cultures of nerve-derived human Schwann cells (hSCs) at the desired scale. Adaptable protocols are provided to propagate hSC cultures through serial passaging and perform routine manipulations such as enzymatic dissociation, purification, cryogenic preservation, live-cell labeling, and gene delivery. Expanded hSCs cultures are metabolically active, proliferative, and phenotypically stable for at least three consecutive passages. Cell yields are expected to be variable as determined by the rate of growth of individual batches and the rounds of subculture. The purity, however, can be maintained high at >95% hSC regardless of passage. The cells obtained in this manner are suitable for various applications, including small drug screens, in vitro modeling of neurodevelopmental processes, and cell transplantation. One caveat of this protocol is that continued expansion of same-batch hSC populations is eventually restricted due to senescence-linked growth arrest. KW - Ensheathing glia KW - Peripheral nerve KW - Cell culture KW - Mitogenic factors KW - Laminin KW - Serial passaging KW - Fibroblast contamination KW - Immunopanning KW - Magnetic-activated cell sorting KW - Cryopreservation KW - Scalability KW - Proliferation KW - Senescence JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False