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Hydrophilic Scaffolds Containing Extracts of Stryphnodendron adstringens and Abarema cochliacarpa for Wound Healing: In Vivo Proofs of Concept. Pharmaceutics 2022; 14:pharmaceutics14102150. [PMID: 36297589 PMCID: PMC9612092 DOI: 10.3390/pharmaceutics14102150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
The present work aimed to evaluate the healing effect of hydrophilic polymeric resorbable biomembrane scaffolds containing plant extracts obtained from two different species, both popularly known as Stryphnodendron adstringens or Barbatimão. The hydrogel-based scaffolds were characterized and submitted to biological tests using Wistar rats to evaluate their healing capacity. The wound retraction index and the evaluation of the inflammatory process and tissue collagenization were recorded. The extracts showed antioxidant activity with IC50 between 10 and 20 µg/mL (DPPH assay) and 4–6 mmol Trolox/g (FRAP assay). The extract of Stryphnodendron adstringens (SA) presented gallocatechin, epigallocatechin, and O-methylpigalocatechin, while the extract of Abarema cochliacarpa (AC) presented catechin, dimers of procyanidins, di-O-hydroxide, O-deoxyhexosi-hexoside, and epicatechin. The membranes containing SA extract (GELSA) were more rigid, with a more intense color, but less thick, with a more compact structure and few pores. The membranes containing AC extract (GELAC) presented a mechanical profile like the gelatin membrane (GEL), with greater permeability to water vapor. The GELAC and GELSA membranes showed similar thermal degradation profiles. The wounds treated with the membranes containing the extracts obtained high levels of retraction of the wounds with values around 60% and 80% in three and seven days, respectively. These data indicate that the compounds of both species have promising biological activities in the repair process, showing that the extracts accelerated the healing process due to the lower intensity of the inflammatory reaction and the presence of compounds such as catechin and epigallocatechin.
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Chen K, Gao H, Yao Y. Prospects of cell chemotactic factors in bone and cartilage tissue engineering. Expert Opin Biol Ther 2022; 22:883-893. [PMID: 35668707 DOI: 10.1080/14712598.2022.2087471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Ke Chen
- Department of Joint Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
- Guangdong Key Laboratory of Orthopedic Technology and Implant Materials
| | - Hui Gao
- Department of Joint Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
- Guangdong Key Laboratory of Orthopedic Technology and Implant Materials
| | - Yongchang Yao
- Department of Joint Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
- Guangdong Key Laboratory of Orthopedic Technology and Implant Materials
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Nouri-Felekori M, Khakbiz M, Nezafati N, Mohammadi J, Eslaminejad MB. Comparative analysis and properties evaluation of gelatin microspheres crosslinked with glutaraldehyde and 3-glycidoxypropyltrimethoxysilane as drug delivery systems for the antibiotic vancomycin. Int J Pharm 2018; 557:208-220. [PMID: 30597262 DOI: 10.1016/j.ijpharm.2018.12.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/01/2018] [Accepted: 12/17/2018] [Indexed: 11/30/2022]
Abstract
In the present comparative study, gelatin microspheres (GMs) were prepared by emulsification-solvent-extraction method using well-known crosslinker: glutaraldehyde (GA) and biocompatible silane-coupling agent: glycidoxypropyltrimethoxysilane (GPTMS). Crosslinking with GA was done by a definite and common procedure, while GPTMS crosslinking potency was investigated after 5, 10, 24, and 48 h synthesis periods and the fabrication method was adjusted in order for preparation of GMs with optimized morphological and compositional characteristics. The prepared GMs were then evaluated and compared as drug delivery systems for the antibiotic vancomycin (Vm). Morphological observations, FTIR, ninhydrin assay, swelling behavior evaluation and Hydrolytic degradation analysis proved successful modification of GMs and revealed that increasing synthesis time from 5 h to 24 h and 48 h, when using GPTMS as crosslinker, led to formation of morphologically-optimized GMs with highest crosslinking degree (∼50%) and the slowest hydrolytic degradation rate. Such GMs also exhibited most sustained release period of Vm. The antibacterial test results against gram-positive bacterium Staphylococcus aureus, were in accordance with the release profiles of Vm, as well. Together, GPTMS-crosslinked GMs with their preferable characteristics and known as biocompatible gelatin-siloxane hybrids, could act as proper drug delivery systems for the sustained release of the antibiotic vancomycin.
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Affiliation(s)
- Mohammad Nouri-Felekori
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran.
| | - Nader Nezafati
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Karaj, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Xing F, Li L, Liu M, Duan X, Long Y, Xiang Z. [The application and research progress of in-situ tissue engineering technology in bone and cartilage repair]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2018; 32:1358-1364. [PMID: 30215487 DOI: 10.7507/1002-1892.201712118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To review the application and research progress of
in-situ tissue engineering technology in bone and cartilage repair. Methods The original articles about
in-situ tissue engineering technology in bone and cartilage repair were extensively reviewed and analyzed. Results In-situ tissue engineering have been shown to be effective in repairing bone defects and cartilage defects, but biological mechanisms are inadequate. At present, most of researches are mainly focused on animal experiments, and the effect of clinical repair need to be further studied. Conclusion In-situ tissue engineering technology has wide application prospects in bone and cartilage tissue engineering. However, further study on the mechanism of related cytokines need to be conducted.
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Affiliation(s)
- Fei Xing
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Lang Li
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Ming Liu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Xin Duan
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Ye Long
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Zhou Xiang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
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Cai X, Yang F, Walboomers XF, Wang Y, Jansen JA, van den Beucken JJJP, Plachokova AS. Periodontal regeneration via chemoattractive constructs. J Clin Periodontol 2018; 45:851-860. [PMID: 29779212 PMCID: PMC6055718 DOI: 10.1111/jcpe.12928] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 04/04/2018] [Accepted: 05/14/2018] [Indexed: 11/29/2022]
Abstract
Aim Chemoattractants, such as stromal cell‐derived factor‐1α (SDF‐1α), can offer an advantage for periodontal regeneration by recruiting the patient’s own stem cells to stimulate self‐repair. We here developed a chemoattractive construct for periodontal regeneration using SDF‐1α and evaluated its efficacy in vivo. Materials and Methods SDF‐1α was loaded on gelatin sponge and tested in vitro for SDF‐1α release. Subsequently, SDF‐1α constructs were implanted into rat periodontal defects for 1 and 6 weeks, with unloaded materials and empty defects as controls. The regenerative efficacy was evaluated by micro‐CT, histological and histomorphometrical analyses. Results In vitro results showed limited SDF‐1α release up to 35 days. In contrast, SDF‐1α constructs significantly improved periodontal defect regeneration in terms of alveolar bone height, new bone area and functional ligament length. Additionally, SDF‐1α constructs decreased the inflammatory response at Week 6. Conclusion Chemoattractive constructs significantly improved periodontal regeneration in terms of alveolar bone height, new bone area and functional ligament length.
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Affiliation(s)
- Xinjie Cai
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands.,The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fang Yang
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands
| | | | - Yining Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - John A Jansen
- Department of Biomaterials, Radboudumc, Nijmegen, the Netherlands
| | | | - Adelina S Plachokova
- Department of Implantology and Periodontology, Radboudumc, Nijmegen, the Netherlands
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Baipaywad P, Kim Y, Wi JS, Paik T, Park H. Size-controlled synthesis, characterization, and cytotoxicity study of monodisperse poly(dimethylsiloxane) nanoparticles. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Zhao D, Lei L, Wang S, Nie H. Understanding cell homing-based tissue regeneration from the perspective of materials. J Mater Chem B 2015; 3:7319-7333. [DOI: 10.1039/c5tb01188d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The triad of cell homing-based tissue engineering.
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Affiliation(s)
- Dapeng Zhao
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Lei Lei
- Department of Orthodontics
- Xiangya Stomatological Hospital
- Central South University
- Changsha 410008
- China
| | - Shuo Wang
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
| | - Hemin Nie
- Department of Biomedical Engineering
- College of Biology
- Hunan University
- Changsha 410082
- China
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Dashnyam K, Perez RA, Singh RK, Lee EJ, Kim HW. Hybrid magnetic scaffolds of gelatin–siloxane incorporated with magnetite nanoparticles effective for bone tissue engineering. RSC Adv 2014. [DOI: 10.1039/c4ra06621a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hybrid magnetic scaffolds of silica–gelatin-MNs newly developed to have excellent physicochemical, mechanical and biological properties that are effective for bone tissue engineering.
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Affiliation(s)
- Khandmaa Dashnyam
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
| | - Roman A. Perez
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
| | - Rajendra K. Singh
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
| | - Eun-Jung Lee
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN)
- Dankook University
- Cheonan 330-714, South Korea
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine
- Dankook University
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Perez RA, El-Fiqi A, Park JH, Kim TH, Kim JH, Kim HW. Therapeutic bioactive microcarriers: co-delivery of growth factors and stem cells for bone tissue engineering. Acta Biomater 2014; 10:520-30. [PMID: 24121192 DOI: 10.1016/j.actbio.2013.09.042] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 09/14/2013] [Accepted: 09/30/2013] [Indexed: 01/27/2023]
Abstract
Novel microcarriers made of sol-gel-derived bioactive glasses were developed for delivering therapeutic molecules effectively while cultivating stem cells for bone tissue engineering. Silica sols with varying concentration of Ca (0-30 mol.%) were formulated into microspheres ranging from 200 to 300 μm under optimized conditions. A highly mesoporous structure was created, with mesopore sizes of 2.5-6.3 nm and specific surface areas of 420-710 m(2)g(-1), which was highly dependent on the Ca concentration. Therapeutic molecules could be effectively loaded within the mesoporous microcarriers during microsphere formulation. Cytochrome C (cyt C), used as a model protein for the release study, was released in a highly sustainable manner, with an almost zero-order kinetics over a period of months; the amount released was ~2% at 9 days, and 15% at 40 days. A slight increase in the release rate was observed in the microcarrier containing Ca, which was related to the dissolution rate and pore size. The presence of Ca accelerated the formation of hydroxyapatite on the surface of the microcarriers. Cells cultured on the bioactive microcarriers were well adhered and distributed, and proliferated actively, confirming the three-dimensional substrate role of the microcarriers. An in vivo study performed in a rat subcutaneous model demonstrated the satisfactory biocompatibility of the prepared microspheres. As a therapeutic target molecule, basic fibroblast growth factor (bFGF) was incorporated into the microcarriers. A slow release pattern similar to that of cyt C was observed for bFGF. Cells adhered and proliferated to significantly higher levels on the bFGF-loaded microcarriers, demonstrating the effective role of bFGF in cell proliferative potential. It is believed that the developed mesoporous bioactive glass microspheres represent a new class of therapeutic cell delivery carrier, potentially useful in the sustainable delivery of therapeutic molecules such as growth factors, as well as in the support of stem cell proliferation and osteogenesis for bone tissue engineering.
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Affiliation(s)
- R A Perez
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 330-714, South Korea
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