Journal of Capital Medical University ›› 2023, Vol. 44 ›› Issue (5): 733-740.doi: 10.3969/j.issn.1006-7795.2023.05.005

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Construction and application of the human glioblastoma cell line Y1203

Zheng Yi1, Song Lairong2, Xu Xiaoying2, Wu Zhen2, Li Xiaojie2, Xie Lei3, Chen Feng1, Li Wenbin1*   

  1. 1.Department of Neuro-Oncology, Cancer Center, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China;2. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China;3.Department of Neurosurgery, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang 050051, China
  • Received:2023-07-18 Online:2023-10-20 Published:2023-10-26
  • Supported by:
    this study was supported by National Natural Science Foundation of China(81972338),Beijing Tiantan Hospital, Capital Medical University Talent Recruitment(RCYJ-2020-2025-LWB), Horizontal Scientific Research in Beijing Tiantan Hospital,Capital Medical University.

Abstract: Objective  To establish a glioblastoma cell line, Y1203, with stem cell-like phenotypes for the study of tumor cell stemness maintenance and potential mechanisms of treatment resistance. Methods  Y1203 cells were derived from tumor tissue obtained by recurrent resection in a 49-year-old female glioblastoma patient. Y1203 cells were used to establish patient-derived tumor xenograft (PDX) models both orthotopically and subcutaneously. Flow cytometry was applied to analyze the cell cycle distribution of different passages of Y1203 cells. Real-time quantitative polymerase chain reaction was performed to assess the expression of stem cell markers, including transcription factor SOX-2 (SOX2) and cluster of differentiation-44 (CD44). RNA-Seq was conducted to compare the expression profiles between Y1203 and U87 cells. Results  The short tandem repeats (STR) analysis confirmed the homogeneity between Y1203 cells and the patient’s tumor tissue, and they were distinct from commonly used cell lines available in the ExPASy database. Genetic testing revealed isocitrate dehydrogenase 1 (IDH1) wild-type, telomerase reverse transcriptase (TERT) promoter mutation, B-Raf proto-oncogene (BRAF V600E) mutation, tumor protein p53 (TP53) mutation, and ATRX chromatin remodeler (ATRX) mutation. The human glioblastoma cell line Y1203 exhibited unlimited proliferation in vitro and thus orthotopic and subcutaneous glioblastoma models was successfully established. Compared to other glioma cell lines, Y1203 cells showed high expression of the tumor stem cell markers CD44 and SOX2, as well as significant enrichment of glioma stem cell-associated pathways. Conclusions  The human glioblastoma cell line Y1203 shows low differentiation, high malignancy, and strong resistance to radiotherapy and chemotherapy, and it possesses glioblastoma stem cell characteristics. The establishment of Y1203 cell line provides an experimental basis for preclinical studies of glioblastoma.

Key words: glioblastoma, primary culture, stemness, patient derived tumor xenograft model

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