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Hasani-Sadrabadi MM, Pouraghaei S, Zahedi E, Sarrion P, Ishijima M, Dashtimoghadam E, Jahedmanesh N, Ansari S, Ogawa T, Moshaverinia A. Antibacterial and Osteoinductive Implant Surface Using Layer-by-Layer Assembly. J Dent Res 2021; 100:1161-1168. [PMID: 34315313 PMCID: PMC8716140 DOI: 10.1177/00220345211029185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Osseointegration of dental, craniofacial, and orthopedic implants is critical for their long-term success. Multifunctional surface treatment of implants was found to significantly improve cell adhesion and induce osteogenic differentiation of dental-derived stem cells in vitro. Moreover, local and sustained release of antibiotics via nanolayers from the surface of implants can present unparalleled therapeutic benefits in implant dentistry. Here, we present a layer-by-layer surface treatment of titanium implants capable of incorporating BMP-2-mimicking short peptides and gentamicin to improve their osseointegration and antibacterial features. Additionally, instead of conventional surface treatments, we employed polydopamine coating before layer-by-layer assembly to initiate the formation of the nanolayers on rough titanium surfaces. Cytocompatibility analysis demonstrated that modifying the titanium implant surface with layer-by-layer assembly did not have adverse effects on cellular viability. The implemented nanoscale coating provided sustained release of osteoinductive peptides with an antibacterial drug. The surface-functionalized implants showed successful osteogenic differentiation of periodontal ligament stem cells and antimicrobial activity in vitro and increased osseointegration in a rodent animal model 4 wk postsurgery as compared with untreated implants. Altogether, our in vitro and in vivo studies suggest that this approach can be extended to other dental and orthopedic implants since this surface functionalization showed improved osseointegration and an enhanced success rate.
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Affiliation(s)
- M M Hasani-Sadrabadi
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, USA
- Department of Bioengineering, University of California, Los Angeles, CA, USA
| | - S Pouraghaei
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - E Zahedi
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - P Sarrion
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - M Ishijima
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - E Dashtimoghadam
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, USA
| | - N Jahedmanesh
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - S Ansari
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - T Ogawa
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - A Moshaverinia
- Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
- California NanoSystems Institute, University of California, Los Angeles, CA, USA
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Rasoulianboroujeni M, Fahimipour F, Shah P, Khoshroo K, Tahriri M, Eslami H, Yadegari A, Dashtimoghadam E, Tayebi L. Development of 3D-printed PLGA/TiO 2 nanocomposite scaffolds for bone tissue engineering applications. Mater Sci Eng C Mater Biol Appl 2019; 96:105-113. [PMID: 30606516 PMCID: PMC6388694 DOI: 10.1016/j.msec.2018.10.077] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 09/01/2018] [Accepted: 10/22/2018] [Indexed: 01/20/2023]
Abstract
Porous scaffolds were 3D-printed using poly lactic-co-glycolic acid (PLGA)/TiO2 composite (10:1 weight ratio) for bone tissue engineering applications. Addition of TiO2 nanoparticles improved the compressive modulus of scaffolds. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) revealed an increase in both glass transition temperature and thermal decomposition onset of the composite compared to pure PLGA. Furthermore, addition of TiO2 was found to enhance the wettability of the surface evidenced by reducing the contact angle from 90.5 ± 3.2 to 79.8 ± 2.4 which is in favor of cellular attachment and activity. The obtained results revealed that PLGA/TiO2 scaffolds significantly improved osteoblast proliferation compared to pure PLGA (p < 0.05). Furthermore, osteoblasts cultured on PLGA/TiO2 nanocomposite showed significantly higher ALP activity and improved calcium secretion compared to pure PLGA scaffolds (p < 0.05).
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Affiliation(s)
| | - F Fahimipour
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - P Shah
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - K Khoshroo
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - M Tahriri
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - H Eslami
- Department of Biomedical Engineering, Haeri University, Yazd, Iran
| | - A Yadegari
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - E Dashtimoghadam
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - L Tayebi
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA.
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Fahimipour F, Rasoulianboroujeni M, Dashtimoghadam E, Khoshroo K, Tahriri M, Bastami F, Lobner D, Tayebi L. 3D printed TCP-based scaffold incorporating VEGF-loaded PLGA microspheres for craniofacial tissue engineering. Dent Mater 2017; 33:1205-1216. [PMID: 28882369 DOI: 10.1016/j.dental.2017.06.016] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 04/28/2017] [Accepted: 06/22/2017] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Vascularization is a critical process during bone regeneration/repair and the lack of tissue vascularization is recognized as a major challenge in applying bone tissue engineering methods for cranial and maxillofacial surgeries. The aim of our study is to fabricate a vascular endothelial growth factor (VEGF)-loaded gelatin/alginate/β-TCP composite scaffold by 3D printing method using a computer-assisted design (CAD) model. METHODS The paste, composed of (VEGF-loaded PLGA)-containing gelatin/alginate/β-TCP in water, was loaded into standard Nordson cartridges and promptly employed for printing the scaffolds. Rheological characterization of various gelatin/alginate/β-TCP formulations led to an optimized paste as a printable bioink at room temperature. RESULTS The in vitro release kinetics of the loaded VEGF revealed that the designed scaffolds fulfill the bioavailability of VEGF required for vascularization in the early stages of tissue regeneration. The results were confirmed by two times increment of proliferation of human umbilical vein endothelial cells (HUVECs) seeded on the scaffolds after 10 days. The compressive modulus of the scaffolds, 98±11MPa, was found to be in the range of cancellous bone suggesting their potential application for craniofacial tissue engineering. Osteoblast culture on the scaffolds showed that the construct supports cell viability, adhesion and proliferation. It was found that the ALP activity increased over 50% using VEGF-loaded scaffolds after 2 weeks of culture. SIGNIFICANCE The 3D printed gelatin/alginate/β-TCP scaffold with slow releasing of VEGF can be considered as a potential candidate for regeneration of craniofacial defects.
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Affiliation(s)
- F Fahimipour
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | | | - E Dashtimoghadam
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - K Khoshroo
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - M Tahriri
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
| | - F Bastami
- Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - D Lobner
- Department of Biomedical Sciences, Marquette University, Milwaukee, WI 53233, USA
| | - L Tayebi
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA; Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, UK.
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Lee W, Stover S, Rasoulianboroujeni M, Sherman K, Fahimipour F, Dashtimoghadam E, Zito C, Jazayeri HE, Tayebi L. The efficacy of commercial tooth storage media for maintaining the viability of human periodontal ligament fibroblasts. Int Endod J 2017. [DOI: 10.1111/iej.12798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- W. Lee
- Department of Surgical Services School of Dentistry Marquette University Milwaukee WI USA
| | - S. Stover
- Department of Surgical Services School of Dentistry Marquette University Milwaukee WI USA
| | - M. Rasoulianboroujeni
- Department of Developmental Sciences School of Dentistry Marquette University Milwaukee WI USA
| | - K. Sherman
- Department of Mathematics, Statistics and Computer Science Marquette University Milwaukee WI USA
| | - F. Fahimipour
- Department of Developmental Sciences School of Dentistry Marquette University Milwaukee WI USA
- Dental Biomaterials Department School of Dentistry Tehran University of Medical Sciences Tehran Iran
| | - E. Dashtimoghadam
- Department of Developmental Sciences School of Dentistry Marquette University Milwaukee WI USA
| | - C. Zito
- Department of Developmental Sciences School of Dentistry Marquette University Milwaukee WI USA
| | - H. E. Jazayeri
- Department of Developmental Sciences School of Dentistry Marquette University Milwaukee WI USA
| | - L. Tayebi
- Department of Developmental Sciences School of Dentistry Marquette University Milwaukee WI USA
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