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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 155 - 164 (10page)
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Background: The delivery of recombinant human bone morphogenetic protein 2 (rhBMP2) by using various carriers has been used to successfully induce bone formation in many animal models. However, the effect of multiple administration of rhBMP2 on bone formation and BMP2 antibody production has not been determined. Our aim was to examine the bone formation activity of rhBMP2 and serum levels of anti-BMP2 antibodies following the repeated administration of rhBMP2 in mice. Methods: Absorbable collagen sponges or polyphosphazene hydrogels containing rhBMP2 were subcutaneously implanted or injected into one side on the back of six-week-old C57BL/6 mice. Three or 4 weeks later, the same amount of rhBMP2 was administered again with the same carrier into the subcutaneous regions on the other side of the back or into calvarial defects. The effects of a single administration of rhBMP2 on the osteoinductive ability in the ectopic model were compared with those of repeated administrations. In vivo ectopic or orthotopic bone formation was evaluated using microradiography and histological analyses. Serum concentrations of anti-rhBMP2 antibodies were measured by ELISAs. Results: Re-administration of the same amount of rhBMP2 into the subcutaneous area showed a comparable production of ectopic bone as after the first administration. The bone forming ability of repeated rhBMP2 administrations was equal to that of single rhBMP2 administration. The administration of rhBMP2 into calvarial defects, following the first subcutaneous administration of rhBMP2 on the back, completely recovered the defect area with newly regenerated bone within 3 weeks. Repeated administration of rhBMP2 at 4-week intervals did not significantly alter the serum levels of anti-BMP2 antibodies and did not induce any inflammatory response. The serum obtained from rhBMP2-exposed mice had no effect on the ability of rhBMP2 to induce osteogenic gene expressions in MC3T3-E1. Conclusion: We suggest that the osteoinductive ability of rhBMP2 is not compromised by repeated administrations. Thus, rhBMP2 can be repeatedly used for bone regeneration at various sites within a short duration.
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참고문헌 (21)
참고문헌 신청
Salazar VS / 2016 / BMP signalling in skeletal development, disease and repair / Nat Rev Endocrinol 12:203~221
Carreira AC / 2014 / Bone morphogenetic proteins : facts, challenges, and future perspectives / J Dent Res 93:335~345
Brown KV / 2011 / Improving bone formation in a rat femur segmental defect by controlling bone morphogenetic protein-2 release / Tissue Eng Part A 17:1735~1746
Rosen V / 2009 / BMP2 signaling in bone development and repair / Cytokine Growth Factor Rev 20:475~480
Schmidt-Bleek K / 2016 / BMPs in bone regeneration : less is more effective, a paradigmshift / Cytokine Growth Factor Rev 27:141~148
Carreira AC / 2014 / Bone morphogenetic proteins : facts, challenges, and future perspectives / J Dent Res 93:335~345
Brown KV / 2011 / Improving bone formation in a rat femur segmental defect by controlling bone morphogenetic protein-2 release / Tissue Eng Part A 17:1735~1746
Rosen V / 2009 / BMP2 signaling in bone development and repair / Cytokine Growth Factor Rev 20:475~480
Schmidt-Bleek K / 2016 / BMPs in bone regeneration : less is more effective, a paradigmshift / Cytokine Growth Factor Rev 27:141~148
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