دورية أكاديمية
Synergistic effect of umbilical cord extracellular vesicles and rhBMP-2 to enhance the regeneration of a metaphyseal femoral defect in osteoporotic rats
| العنوان: | Synergistic effect of umbilical cord extracellular vesicles and rhBMP-2 to enhance the regeneration of a metaphyseal femoral defect in osteoporotic rats |
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| المؤلفون: | Amelie Deluca, Andrea Wagner, Patrick Heimel, Christian Deininger, Florian Wichlas, Heinz Redl, Eva Rohde, Herbert Tempfer, Mario Gimona, Andreas Traweger |
| المصدر: | Stem Cell Research & Therapy, Vol 15, Iss 1, Pp 1-12 (2024) |
| بيانات النشر: | BMC, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Medicine (General) LCC:Biochemistry |
| مصطلحات موضوعية: | BMP-2, Extracellular vesicles, Exosomes, Drug delivery, osteoporosis, Metaphyseal defect, Medicine (General), R5-920, Biochemistry, QD415-436 |
| الوصف: | Abstract Background The aim of this study was to evaluate potential synergistic effects of a single, local application of human umbilical cord MSC-derived sEVs in combination with a low dose of recombinant human rhBMP-2 to promote the regeneration of a metaphyseal femoral defect in an osteoporotic rat model. Methods 6 weeks after induction of osteoporosis by bilateral ventral ovariectomy and administration of a special diet, a total of 64 rats underwent a distal femoral metaphyseal osteotomy using a manual Gigli wire saw. Defects were stabilized with an adapted Y-shaped mini-locking plate and were subsequently treated with alginate only, or alginate loaded with hUC-MSC-sEVs (2 × 109), rhBMP-2 (1.5 µg), or a combination of sEVs and rhBMP-2 (n = 16 for each group). 6 weeks post-surgery, femora were evaluated by µCT, descriptive histology, and biomechanical testing. Results Native radiographs and µCT analysis confirmed superior bony union with callus formation after treatment with hUC-MSC-sEVs in combination with a low dose of rhBMP-2. This finding was further substantiated by histology, showing robust defect consolidation 6 weeks after treatment. Torsion testing of the explanted femora revealed increased stiffness after application of both, rhBMP-2 alone, or in combination with sEVs, whereas torque was only significantly increased after treatment with rhBMP-2 together with sEVs. Conclusion The present study demonstrates that the co-application of hUC-MSC-sEVs can improve the efficacy of rhBMP-2 to promote the regeneration of osteoporotic bone defects. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1757-6512 |
| Relation: | https://doaj.org/toc/1757-6512 |
| DOI: | 10.1186/s13287-024-03755-8 |
| URL الوصول: | https://doaj.org/article/7d2ff81e56f648e2ad983488d3bcd62f |
| رقم الأكسشن: | edsdoj.7d2ff81e56f648e2ad983488d3bcd62f |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 17576512 |
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| DOI: | 10.1186/s13287-024-03755-8 |