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 ORIGINAL ARTICLE
Year : 2020  |  Volume : 68  |  Issue : 2  |  Page : 383--388

Establishment and Characterization of Cell Lines from Primary Culture of Hemangioblastoma Stromal Cells


Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China

Correspondence Address:
Dr. Xuhui Hui
Department of Neurosurgery, West China Hospital of Sichuan University, 37 Guo Xue Xiang, Wu Hou District, Chengdu - 610041
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.280643

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Context: A well-established cell line of hemangioblastomas (HBs) is still lacking. Aim: This study aims to explore a stable way to establish primary cell lines of HB stromal cells and investigate the morphological and molecular features of these cells. Patients and Methods: Specimens of HBs from 13 patients were collected for establishment of primary cell lines of stromal cells. The details on cell culture were described, and the characterizations of cultured cells were conducted by morphological observation, immunocytochemical staining of inhibin-α, brachyury, CD133, CD34, GFAP, CD31, NeuN, CD45, Oligo2, and transmission electron microscopy. Results: Eleven cases were successfully cultured with a success rate of 84.6%. The cultured cells survived for 10 generations with an estimated doubling time of 77.2 ± 5.89 h. Light microscopy revealed that these cells showed vigorous growth status and presented as polygons or trigons with significant heterogeneity. The immunocytochemical staining showed that inhibin-α, brachyury, CD133, and CD34 were expressed in all the cultured cells, whereas the expression of GFAP, CD31, NeuN, CD45, and Oligo2 was all negative. Transmission electron microscopy confirmed that the cultured cells were stromal cells with typical lipid droplets. The phenomenon of lysosomal autophagy was commonly observed without apoptotic cells in late stage. Conclusion: Appropriate selection of tumor specimens, short duration of devascularization, ideal digestion time, and nutritious medium are critical points for establishment of primary cell line of HB stromal cells. Stromal cells from both von Hippel–Lindau disease-related HBs and sporadic HBs might originate from embryologically arrested hemangioblasts.






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