Cited by 560Bone Tissue Engineering MaterialsBone Metabolism and DiseasesBone fractures and treatments

High Doses of Bone Morphogenetic Protein 2 Induce Structurally Abnormal Bone and Inflammation In Vivo

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Zara, Janette N., Siu, Ronald K., Zhang, Xinli, Shen, Jia, Ngo, Richard, Lee, Min, Li, Weiming, Chiang, Michael +5 more·2011·Tissue Engineering Part A

Abstract

The major Food and Drug Association-approved osteoinductive factors in wide clinical use are bone morphogenetic proteins (BMPs). Although BMPs can promote robust bone formation, they also induce adverse clinical effects, including cyst-like bone formation and significant soft tissue swelling. In this study, we evaluated multiple BMP2 doses in a rat femoral segmental defect model and in a minimally traumatic rat femoral onlay model to determine its dose-dependent effects. Results of our femoral segmental defect model established a low BMP2 concentration range (5 and 10 μg/mL, total dose 0.375 and 0.75 μg in 75 μg total volume) unable to induce defect fusion, a mid-range BMP2 concentration range able to fuse the defect without adverse effects (30 μg/mL, total dose 2.25 μg in 75 μg total volume), and a high BMP2 concentration range (150, 300, and 600 μg/mL, total dose 11.25, 22.5, and 45 μg in 75 μg total volume) able to fuse the defect, but with formation of cyst-like bony shells filled with histologically confirmed adipose tissue. In addition, compared to control, 4 mg/mL BMP2 also induced significant tissue inflammatory infiltrates and exudates in the femoral onlay model that was accompanied by increased numbers of osteoclast-like cells at 3, 7, and 14 days. Overall, we consistently reproduced BMP2 side effects of cyst-like bone and soft tissue swelling using high BMP2 concentration approaching the typical human 1500 μg/mL.

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Crossref · 10.1089/ten.tea.2010.0555

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Authors
Zara, J. N., Siu, R. K., Zhang, X., Shen, J., Ngo, R., Lee, M., Li, W., Chiang, M., Chung, J., Kwak, J., Wu, B. M., Ting, K., & Soo, C.
Affiliations
  • University of California, Los Angeles (US)
  • Dental and Craniofacial Research Institute, School of Dentistry, University of California, Los Angeles, California.
Corresponding author
Soo, Chia
Venue
Tissue Engineering Part A
Published
2011-05
Volume
17
Issue
9-10
Pages
1389-1399
ISSN
  • 1937-3341 (ISSN-L)
  • 1937-335X
OpenAlex
W2033954341
Cited by
560
References
53
Citations by year
2026: 30 · 2025: 29 · 2024: 27 · 2023: 32 · 2022: 46 · 2021: 37 · 2020: 41 · 2019: 50 · 2018: 55 · 2017: 50 · 2016: 33 · 2015: 44 · 2014: 41 · 2013: 24 · 2012: 17
FWCI
16.25
Type
journal article
Language
en
Open access
Locations
  • Tissue Engineering Part A (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (10677)
  • U.S. Army
  • National Institute of Dental and Craniofacial Research (R21 DE0177711, R01 DE16107-05S1, DE01607-01, R21 DE0177711-01, R01DE016107)
  • U.S. Army Medical Research Acquisition Activity
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Epidemiology › Bone fractures and treatments
Keywords
BMP-2, soft tissue swelling, segmental bone defect, inflammation, osteoclast-like cells, adipose tissue, bone fusion
MeSH terms
Adipose Tissue, Animals, Bone Cysts, Disease Models, Animal, Femoral Fractures, Femur, Humans, Male, Osteogenesis, Rats, Inbred Lew, Matrix Metalloproteinase 2, Rats

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