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Novel maxillary reconstruction with ectopic bone formation by GMP adipose stem cells
Abstract
Microvascular reconstruction is the state-of-the-art in many fields of defect surgery today. Currently, reconstruction of large bony defects involves harvesting of autologous bone causing donor site morbidity and risk of infection. Specifically, utilizing autologous adipose stem cells (autoASCs), large quantities of cells can be retrieved for cell therapy applications and the risk of tissue rejection is diminished. The authors describe the first case report of a microvascular custom-made ectopic bone flap employing good manufacturing practice (GMP) level ASCs. The patient underwent a hemimaxillectomy due to a large keratocyst. After 36 months of follow-up, the defect was reconstructed with a microvascular flap using autoASCs, beta-tricalcium phosphate and bone morphogenetic protein-2. ASCs were isolated and expanded in clean room facilities according to GMP standards and were characterized in vitro. After 8 months of follow-up, the flap had developed mature bone structures and vasculature and was transplanted into the defect area. Postoperative healing has been uneventful, and further rehabilitation with dental implants has been started. The in vitro characterization demonstrated multipotentiality and mesenchymal stem cell characteristics in ASCs. This is the first clinical case where ectopic bone was produced using autoASCs in microvascular reconstruction surgery and it will pave way for new clinical trials in the field.
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“Multiple studies have shown that both ASCs and BM-MSCs can promote bone tissue reconstruction in sites of bone loss with and without multifunctional biomaterials (ceramic, biodegradable polymers, and composite materials) that have been designed to guide bone regeneration [39,90,91,92].”
From Mesenchymal Stem/Stromal Cells: Immunomodulatory and Bone Regeneration Potential after Tumor Excision in Osteosarcoma Patients (2023) · cites this paper as [91]
In the citing paper
“Additionally, ASCs, in combination with β-tricalcium phosphate and BMP-2, led to osteo-integrated implants and a full defect reconstruction at 36 months in maxillary reconstruction [39,91].”
From Mesenchymal Stem/Stromal Cells: Immunomodulatory and Bone Regeneration Potential after Tumor Excision in Osteosarcoma Patients (2023) · cites this paper as [91]
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Metadata
- Authors
- Mesimäki, K., Lindroos, B., Törnwall, J., Mauno, J., Lindqvist, C., Kontio, R., Miettinen, S., & Suuronen, R.
- Affiliations
- Helsinki University Hospital (FI)
- Tampere University (FI)
- University of Helsinki (FI)
- Corresponding author
- Suuronen, R.
- Venue
- International Journal of Oral and Maxillofacial Surgery
- Publisher
- Elsevier BV
- Published
- 2009-03
- Volume
- 38
- Issue
- 3
- Pages
- 201-209
- ISSN
- 0901-5027 (ISSN-L)
- OpenAlex
- W2057425253
- Cited by
- 480
- References
- 0
- Citations by year
- 2026: 7 · 2025: 12 · 2024: 6 · 2023: 21 · 2022: 21 · 2021: 20 · 2020: 26 · 2019: 31 · 2018: 30 · 2017: 35 · 2016: 36 · 2015: 36 · 2014: 46 · 2013: 47 · 2012: 42
- FWCI
- 16.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Oral and Maxillofacial Surgery (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Mesenchymal stem cell research
- Health Sciences › Medicine › Surgery › Reconstructive Surgery and Microvascular Techniques
- Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
- Keywords
- maxillary reconstruction, ectopic bone formation, adipose-derived stem cells, autologous stem cell therapy, microvascular reconstruction, hemimaxillectomy, keratocyst, beta-tricalcium phosphate, BMP-2, good manufacturing practices, mesenchymal stem cells, dental implants
- MeSH terms
- Adipose Tissue, Aged, Bone and Bones, Calcium Phosphates, Cell Differentiation, Humans, Male, Maxillary Diseases, Odontogenic Cysts, Ossification, Heterotopic, Osteocytes, Osteogenesis, Surgical Flaps, Treatment Outcome, Bone Substitutes, Oral Surgical Procedures, Plastic Surgery Procedures, Prostheses and Implants, Tissue Engineering, Multipotent Stem Cells, Abdominal Fat, Adult Stem Cells, Bone Morphogenetic Protein 2, Microvessels
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