Pítia F Ledur1, Chong Liu2, Hua He1, Alexandra R Harris1, Darlan C Minussi1, Hai-Yan Zhou1, Mark E Shaffrey1, Ashok Asthagiri1, Maria Beatriz S Lopes1, David Schiff1, Yi-Cheng Lu1, James W Mandell1, Guido Lenz1, Hui Zong1. 1. Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia (P.F.L., C.L., A.R.H., H.Z.); Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia (M.E.S., A.A., D.S.); Division of Neuropathology, Department of Pathology, Charlottesville, Virginia (M.B.S.L., J.W.M.); Department of Neurology, School of Medicine, University of Virginia, Charlottesville, Virginia (D.S.); Department of Pathology and Pathological Physiology, Center for Cancer Research, Zhejiang University School of Medicine, Zhejiang Diseases Proteomics Key Laboratory, Hangzhou, China (C.L.); Department of Biophysics and Center of Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil (P.F.L., D.C.M., G.L.); Department of Neurosurgery, Changzheng Hospital, Second Affiliated Hospital of Second Military Medical University, Shanghai, China (H.H., Y.-C.L.); Department of Pathology, Xiang-ya Hospital, Central South University, Changsha, Hunan, China (H.-Y.Z.). 2. Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia (P.F.L., C.L., A.R.H., H.Z.); Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia (M.E.S., A.A., D.S.); Division of Neuropathology, Department of Pathology, Charlottesville, Virginia (M.B.S.L., J.W.M.); Department of Neurology, School of Medicine, University of Virginia, Charlottesville, Virginia (D.S.); Department of Pathology and Pathological Physiology, Center for Cancer Research, Zhejiang University School of Medicine, Zhejiang Diseases Proteomics Key Laboratory, Hangzhou, China (C.L.); Department of Biophysics and Center of Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil (P.F.L., D.C.M., G.L.); Department of Neurosurgery, Changzheng Hospital, Second Affiliated Hospital of Second Military Medical University, Shanghai, China (H.H., Y.-C.L.); Department of Pathology, Xiang-ya Hospital, Central South University, Changsha, Hunan, China (H.-Y.Z.) chongliu77@zju.edu.cn hz9s@virginia.edu.
Abstract
BACKGROUND: Cell culture plays a pivotal role in cancer research. However, culture-induced changes in biological properties of tumor cells profoundly affect research reproducibility and translational potential. Establishing culture conditions tailored to the cancer cell of origin could resolve this problem. For glioma research, it has been previously shown that replacing serum with defined growth factors for neural stem cells (NSCs) greatly improved the retention of gene expression profile and tumorigenicity. However, among all molecular subtypes of glioma, our laboratory and others have previously shown that the oligodendrocyte precursor cell (OPC) rather than the NSC serves as the cell of origin for the proneural subtype, raising questions regarding the suitability of NSC-tailored media for culturing proneural glioma cells. METHODS: OPC-originated mouse glioma cells were cultured in conditions for normal OPCs or NSCs, respectively, for multiple passages. Gene expression profiles, morphologies, tumorigenicity, and drug responsiveness of cultured cells were examined in comparison with freshly isolated tumor cells. RESULTS: OPC media-cultured glioma cells maintained tumorigenicity, gene expression profiles, and morphologies similar to freshly isolated tumor cells. In contrast, NSC-media cultured glioma cells gradually lost their OPC features and most tumor-initiating ability and acquired heightened sensitivity to temozolomide. CONCLUSIONS: To improve experimental reproducibility and translational potential of glioma research, it is important to identify the cell of origin, and subsequently apply this knowledge to establish culture conditions that allow the retention of native properties of tumor cells.
BACKGROUND: Cell culture plays a pivotal role in cancer research. However, culture-induced changes in biological properties of tumor cells profoundly affect research reproducibility and translational potential. Establishing culture conditions tailored to the cancer cell of origin could resolve this problem. For glioma research, it has been previously shown that replacing serum with defined growth factors for neural stem cells (NSCs) greatly improved the retention of gene expression profile and tumorigenicity. However, among all molecular subtypes of glioma, our laboratory and others have previously shown that the oligodendrocyte precursor cell (OPC) rather than the NSC serves as the cell of origin for the proneural subtype, raising questions regarding the suitability of NSC-tailored media for culturing proneural glioma cells. METHODS: OPC-originated mouseglioma cells were cultured in conditions for normal OPCs or NSCs, respectively, for multiple passages. Gene expression profiles, morphologies, tumorigenicity, and drug responsiveness of cultured cells were examined in comparison with freshly isolated tumor cells. RESULTS: OPC media-cultured glioma cells maintained tumorigenicity, gene expression profiles, and morphologies similar to freshly isolated tumor cells. In contrast, NSC-media cultured glioma cells gradually lost their OPC features and most tumor-initiating ability and acquired heightened sensitivity to temozolomide. CONCLUSIONS: To improve experimental reproducibility and translational potential of glioma research, it is important to identify the cell of origin, and subsequently apply this knowledge to establish culture conditions that allow the retention of native properties of tumor cells.
Authors: Andrew C Boquest; Aboulghassem Shahdadfar; Katrine Frønsdal; Olafur Sigurjonsson; Siv H Tunheim; Philippe Collas; Jan E Brinchmann Journal: Mol Biol Cell Date: 2005-01-05 Impact factor: 4.138
Authors: Keith L Ligon; Emmanuelle Huillard; Shwetal Mehta; Santosh Kesari; Hongye Liu; John A Alberta; Robert M Bachoo; Michael Kane; David N Louis; Ronald A Depinho; David J Anderson; Charles D Stiles; David H Rowitch Journal: Neuron Date: 2007-02-15 Impact factor: 17.173
Authors: Xiangpeng Yuan; James Curtin; Yizhi Xiong; Gentao Liu; Sebastian Waschsmann-Hogiu; Daniel L Farkas; Keith L Black; John S Yu Journal: Oncogene Date: 2004-12-16 Impact factor: 9.867
Authors: Keith L Ligon; John A Alberta; Alvin T Kho; Jennifer Weiss; Mary R Kwaan; Catherine L Nutt; David N Louis; Charles D Stiles; David H Rowitch Journal: J Neuropathol Exp Neurol Date: 2004-05 Impact factor: 3.685
Authors: Matthew D Sutcliffe; Rui P Galvao; Lixin Wang; Jungeun Kim; Lauren K Rosenfeld; Shambhavi Singh; Hui Zong; Kevin A Janes Journal: Cancer Res Date: 2021-02-02 Impact factor: 13.312