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A mouse model for the study of transplanted bone marrow mesenchymal stem cell survival and proliferation in lumbar spinal fusion.
- Source :
-
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society [Eur Spine J] 2019 Apr; Vol. 28 (4), pp. 710-718. Date of Electronic Publication: 2018 Dec 03. - Publication Year :
- 2019
-
Abstract
- Purpose: Bone marrow aspirate has been successfully used alongside a variety of grafting materials to clinically augment spinal fusion. However, little is known about the fate of these transplanted cells. Herein, we develop a novel murine model for the in vivo monitoring of implanted bone marrow cells (BMCs) following spinal fusion.<br />Methods: A clinical-grade scaffold was implanted into immune-intact mice undergoing spinal fusion with or without freshly isolated BMCs from either transgenic mice which constitutively express the firefly luciferase gene or syngeneic controls. The in vivo survival, distribution and proliferation of these luciferase-expressing cells was monitored via bioluminescence imaging over a period of 8 weeks and confirmed via immunohistochemistry. MicroCT imaging was performed 8 weeks to assess fusion.<br />Results: Bioluminescence imaging indicated transplanted cell survival and proliferation over the first 2 weeks, followed by a decrease in cell numbers, with transplanted cell survival still evident at the end of the study. New bone formation and increased fusion mass volume were observed in mice implanted with cell-seeded scaffolds.<br />Conclusions: By enabling the tracking of transplanted bone marrow-derived cells during spinal fusion in vivo, this mouse model will be integral to developing a deeper understanding of the biological processes underlying spinal fusion in future studies. These slides can be retrieved under Electronic Supplementary Material.
- Subjects :
- Animals
Bone Marrow Transplantation methods
Cell Proliferation
Cell Survival
Female
Lumbar Vertebrae diagnostic imaging
Lumbar Vertebrae pathology
Luminescent Measurements methods
Mice, Transgenic
Tissue Scaffolds
X-Ray Microtomography
Disease Models, Animal
Lumbar Vertebrae surgery
Mesenchymal Stem Cell Transplantation methods
Mesenchymal Stem Cells cytology
Spinal Fusion methods
Subjects
Details
- Language :
- English
- ISSN :
- 1432-0932
- Volume :
- 28
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
- Publication Type :
- Academic Journal
- Accession number :
- 30511246
- Full Text :
- https://doi.org/10.1007/s00586-018-5839-y