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Weng Z, Ma L, Li J, Zhou Q, Peng L, Li H, Chen L, Xin Z, Shi L, Qi S, Lu Y. A reproduceable in situ xenograft model of spinal glioma. J Neurosci Methods 2020; 346:108928. [PMID: 32898574 DOI: 10.1016/j.jneumeth.2020.108928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Spinal glioma is a nervous system tumor that tends to relapse and has no specific prognostic molecular biomarkers. Thus, a stable and reproduceable animal research model of spinal glioma is urgently needed. NEW METHOD We established a new in situ tumor xenograft model of spinal glioma using nude mice. In this study, we implanted tumors into the cervical spinal cord of nude mice to mimic the pathological characteristics of the original tumors. RESULTS Through anatomical experiments, we found that the cervical lamina of mice was thinner, the intervertebral space was much wider, and the adhesion muscles were more easily separated. According to the examination of spinal cord sections, the best puncture point we identified was located 0.9 mm lateral to the posterior median line at the level of the line between the midpoints of the scapulae and at a depth of 0.9 mm. In the nude mouse xenograft experiment, the implanted tumor tissue retained the pathological characteristics of the original tumor. COMPARISON WITH EXISTING METHOD(S) This model used the cervical spinal cord as the puncture site and patient-derived primary tumor cells, which has never been performed before. Tumor cells could be injected directly without damaging the lamina. Thus, we could reduce the risk of man-made spinal cord injury and infection and avoid destroying the stability and integrity of the spine. CONCLUSIONS This study established a stable and reliable animal model of spinal glioma for further molecular research and targeted therapy development.
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Affiliation(s)
- Zhijian Weng
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Department of Neurosurgery, Zhuhai People's Hospital (Zhuhai Hospital Affiliated With Jinan University), Zhuhai, 519000, China
| | - Liyi Ma
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Junjie Li
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Qiang Zhou
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Lin Peng
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Hong Li
- Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Lei Chen
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Zong Xin
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Linyong Shi
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Songtao Qi
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Glioma Center, 1838 North Guangzhou Avenue, Guangzhou, 510515, China.
| | - Yuntao Lu
- Department of Neurosurgery, Nanfang Hospital Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Neurology Research Institution, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China; Nanfang Glioma Center, 1838 North Guangzhou Avenue, Guangzhou, 510515, China.
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