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Published in: European Spine Journal 4/2019

01-04-2019 | Original Article

A mouse model for the study of transplanted bone marrow mesenchymal stem cell survival and proliferation in lumbar spinal fusion

Authors: Ioan A. Lina, Wataru Ishida, Jason A. Liauw, Sheng-fu L. Lo, Benjamin D. Elder, Alexander Perdomo-Pantoja, Debebe Theodros, Timothy F. Witham, Christina Holmes

Published in: European Spine Journal | Issue 4/2019

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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.

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.

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.

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.

Graphical abstract

These slides can be retrieved under Electronic Supplementary Material.
Appendix
Available only for authorised users
Literature
12.
go back to reference Cao Y-A, Bachmann MH, Beilhack A et al (2005) Molecular imaging using labeled donor tissues reveals patterns of engraftment, rejection, and survival in transplantation. Transplantation 80:134–139CrossRefPubMed Cao Y-A, Bachmann MH, Beilhack A et al (2005) Molecular imaging using labeled donor tissues reveals patterns of engraftment, rejection, and survival in transplantation. Transplantation 80:134–139CrossRefPubMed
Metadata
Title
A mouse model for the study of transplanted bone marrow mesenchymal stem cell survival and proliferation in lumbar spinal fusion
Authors
Ioan A. Lina
Wataru Ishida
Jason A. Liauw
Sheng-fu L. Lo
Benjamin D. Elder
Alexander Perdomo-Pantoja
Debebe Theodros
Timothy F. Witham
Christina Holmes
Publication date
01-04-2019
Publisher
Springer Berlin Heidelberg
Published in
European Spine Journal / Issue 4/2019
Print ISSN: 0940-6719
Electronic ISSN: 1432-0932
DOI
https://doi.org/10.1007/s00586-018-5839-y

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