Abstract
Dedifferentiated liposarcoma (DDLPS) is a highly aggressive subtype of liposarcoma that is histologically a transition form between an atypical lipomatous tumor/well-differentiated liposarcoma and a non-lipogenic sarcoma. DDLPS is genetically characterized by a complex karyotype with copy number variations and genomic complexity. DDLPS has a poor prognosis, a high local recurrence rate, and refractory behaviors for chemotherapy and radiation, which indicate a requirement for a novel therapeutic strategy for better clinical outcomes. We report here, a novel DDLPS cell line (NCC-DDLPS2-C1) developed from a tumor tissue. NCC-DDLPS2-C1 cells showed an amplified 12q13-15 region and exhibited constant growth, spheroid formation, and invasion. High-throughput drug screening revealed distinct sensitivity between monolayer- and three-dimensional cells. Romidepsin and trabectedin especially showed high anti-proliferative effects in both culture methods of NCC-DDLPS2-C1. Thus, the NCC-DDLPS2-C1 cell line may serve as a useful resource for DDLPS studies.




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Acknowledgments
We thank Miss Yu Kuwata (Division of Rare Cancer Research, National Cancer Center) for her technical support and Yukiko Ogura (Division of Diagnostic Pathology, Tochigi Cancer Center) for their work in the histopathological examination for this study. We would like to thank the Tochigi Cancer Center Operating Room Nurse Team and the Secretary of the Medical Office for their assistance in processing and transporting samples. We would like to thank Editage (www.editage.jp) for English-language editing and constructive comments on the manuscript.
Funding
This research was supported by the Japan Agency for Medical Research and Development (grant number 20ck0106537h0001).
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Noguchi, R., Yoshimatsu, Y., Ono, T. et al. Establishment and characterization of a novel cell line, NCC-DDLPS2-C1, derived from a patient with dedifferentiated liposarcoma. Human Cell 34, 990–997 (2021). https://doi.org/10.1007/s13577-021-00497-0
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DOI: https://doi.org/10.1007/s13577-021-00497-0
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