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  • Title: Establishment and characterization of NCC-PLPS1-C1, a novel patient-derived cell line of pleomorphic liposarcoma.
    Author: Noguchi R, Yoshimatsu Y, Ono T, Sei A, Hirabayashi K, Ozawa I, Kikuta K, Kondo T.
    Journal: Hum Cell; 2021 Mar; 34(2):688-697. PubMed ID: 33205363.
    Abstract:
    Pleomorphic liposarcoma (PLPS) is a rare subtype of liposarcoma, characterized by the presence of pleomorphic lipoblasts without definitive molecular aberrations; it accounts for less than 5% of all liposarcomas. PLPS is an aggressive cancer that exhibits frequent local recurrence and metastasis, with an overall 5-year survival rate of ~ 60%. Owing to the lack of effective treatment options in inoperable conditions and resistance to chemotherapeutics, novel therapies are required to treat PLPS. Although patient-derived cell lines are a critical tool for basic and pre-clinical research, only one PLPS cell line is reportedly available for analysis. A paucity of adequate cell line hinders the progress of research and treatments of PLPS. Thus, we aimed to establish and characterize a novel patient-derived cell line for PLPS. Using surgically resected tumor tissue from a 71-year-old male patient, we established the NCC-PLPS1-C1 cell line. The cells were maintained for more than 8 months and passaged ~ 40 times in the tissue culture condition. NCC-PLPS1-C1 cells were characterized by multiple genetic deletions and showed rapid growth, spheroid formation, and invasive potential. The NCC-PLPS1-C1 cells and the original tumor tissue shared similar kinase activity profiles for FES and PDGFR-β. NCC-PLPS1-C1 constantly proliferated, being suitable for the screening of anti-cancer drugs. A screen for the anti-proliferative effects of anti-cancer drugs on NCC-PLPS1-C1 cells showed a significant response for bortezomib, gemcitabine, romidepsin, topotecan, and vinblastine. In conclusion, NCC-PLPS1-C1 cells represent a useful tool for basic and pre-clinical studies related to PLPS, especially high-throughput drug screening.
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