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Kim SY, Lee YJ, Cho WT, Hwang SH, Heo SC, Kim HJ, Huh JB. Preliminary Animal Study on Bone Formation Ability of Commercialized Particle-Type Bone Graft with Increased Operability by Hydrogel. MATERIALS 2021; 14:ma14164464. [PMID: 34442986 PMCID: PMC8399214 DOI: 10.3390/ma14164464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/29/2021] [Accepted: 08/06/2021] [Indexed: 12/31/2022]
Abstract
The purpose of this study was to evaluate the bone-generating ability of a new bovine-derived xenograft (S1-XB) containing hydrogel. For control purposes, we used Bio-Oss and Bone-XB bovine-derived xenografts. S1-XB was produced by mixing Bone-XB and hydrogel. Cell proliferation and differentiation studies were performed to assess cytotoxicities and cell responses. For in vivo study, 8 mm-sized cranial defects were formed in 16 rats, and then the bone substitutes were transplanted into defect sites in the four study groups, that is, a Bio-Oss group, a Bone-XB group, an S1-XB group, and a control (all n = 4); in the control group defects were left empty. Eight weeks after surgery, new bone formation areas were measured histomorphometrically. In the cell study, extracts of Bio-Oss, Bone-XB, and S1-XB showed good results in terms of the osteogenic differentiation of human mesenchymal stem cells (hMSCs) and no cytotoxic reaction was evident. No significant difference was observed between mean new bone areas in the Bio-Oss (36.93 ± 4.27%), Bone-XB (35.07 ± 3.23%), and S1-XB (30.80 ± 6.41%) groups, but new bone area was significantly smaller in the control group (18.73 ± 5.59%) (p < 0.05). Bovine-derived bone graft material containing hydrogel (S1-XB) had a better cellular response and an osteogenic effect similar to Bio-Oss.
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Affiliation(s)
- So-Yeun Kim
- Department of Prosthodontics, Kyungpook National University Dental Hospital, Daegu 41940, Korea;
| | - You-Jin Lee
- Department of Prosthodontics, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea; (Y.-J.L.); (W.-T.C.); (S.-H.H.)
| | - Won-Tak Cho
- Department of Prosthodontics, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea; (Y.-J.L.); (W.-T.C.); (S.-H.H.)
| | - Su-Hyun Hwang
- Department of Prosthodontics, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea; (Y.-J.L.); (W.-T.C.); (S.-H.H.)
| | - Soon-Chul Heo
- Department of Oral Physiology, Periodontal Diseases Signaling Network Research Center, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan 50612, Korea;
| | - Hyung-Joon Kim
- Department of Oral Physiology, Periodontal Diseases Signaling Network Research Center, Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan 50612, Korea;
- Correspondence: (H.-J.K.); (J.-B.H.); Tel.: +82-10-6326-4189 (H.-J.K.); +82-10-8007-9099 (J.-B.H.); Fax: +82-55-510-8208 (H.-J.K.); +82-55-360-5134 (J.-B.H.)
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea; (Y.-J.L.); (W.-T.C.); (S.-H.H.)
- Correspondence: (H.-J.K.); (J.-B.H.); Tel.: +82-10-6326-4189 (H.-J.K.); +82-10-8007-9099 (J.-B.H.); Fax: +82-55-510-8208 (H.-J.K.); +82-55-360-5134 (J.-B.H.)
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Yang Z, Xiao L, Deng Z, Cai L, Xie Y. Evaluation of Demineralized Bone Matrix Particles Delivered by Alginate Hydrogel for a Bone Graft Substitute: An Animal Experimental Study. Med Sci Monit 2021; 27:e928617. [PMID: 33481770 PMCID: PMC7836326 DOI: 10.12659/msm.928617] [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] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Our objective was to explore a synthetic alginate hydrogel delivery system for the delivery of demineralized bone matrix (DBM) particles for bone graft substitutes. MATERIAL AND METHODS The physiochemical properties of surface morphology, porosity measurements, in vitro degradation, equilibrium swelling, and mechanical testing of combined DBM powder and alginate in amounts of 0 mg/1 mL, 25 mg/1 mL, 50 mg/1 mL, and 100 mg/1 mL were detected. In vitro cell culture and in vivo studies using Sprague-Dawley rats were performed to evaluate the biocompatibility and osteoinductivity of DBM-alginate (ADBM) composites. RESULTS DBM particles were uniformly scattered in all composites, and macro-scale pores were omnipresent. All composites showed a similar low degradation rate, with approximately 85% of weight remaining after 15 days. As the concentration of DBM particles in composites increased, degradation in collagenase and elastic modulus increased and the pore area and swelling ratio significantly decreased. No cytotoxicity of ADBM or alginate on mesenchymal stem cells (MSCs) was observed. Cell cultivation with ADBM showed greater osteogenic potential, evidenced by the upregulation of alkaline phosphatase and alizarin red staining activity and the mRNA expression level of marker genes RUNX2, OCN, OPN, and collagen I compared with the cells grown in alginate. Evaluation of ectopic bone formation revealed the osteoinductivity of the ADBM composites was significantly greater than that of DBM particles. Osteoinduction of the composites was demonstrated by a cranial defect model study. CONCLUSIONS The delivery of DBM particles using a synthetic alginate hydrogel carrier may be a promising approach in bone tissue engineering for bone defects.
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Affiliation(s)
- Zhiqiang Yang
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
| | - Lingfei Xiao
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
| | - Zhouming Deng
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
| | - Lin Cai
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
| | - Yuanlong Xie
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China (mainland)
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Horton TM, Hoff FW, van Dijk A, Jenkins GN, Morrison D, Bhatla T, Hogan L, Romanos-Sirakis E, Meyer J, Carroll WL, Qiu Y, Wang T, Mo Q, Kornblau SM. The effects of sample handling on proteomics assessed by reverse phase protein arrays (RPPA): Functional proteomic profiling in leukemia. J Proteomics 2020; 233:104046. [PMID: 33212251 DOI: 10.1016/j.jprot.2020.104046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 10/27/2020] [Accepted: 11/10/2020] [Indexed: 10/23/2022]
Abstract
Reverse phase protein arrays (RPPA) can assess protein expression and activation states in large numbers of samples (n > 1000) and evidence suggests feasibility in the setting of multi-institution clinical trials. Despite evidence in solid tumors, little is known about protein stability in leukemia. Proteins collected from leukemia cells in blood and bone marrow biopsies must be sufficiently stable for analysis. Using 58 leukemia samples, we initially assessed protein/phospho-protein integrity for the following preanalytical variables: 1) shipping vs local processing, 2) temperature (4 °C vs ambient temperature), 3) collection tube type (heparin vs Cell Save (CS) preservation tubes), 4) treatment effect (pre- vs post-chemotherapy) and 5) transit time. Next, we assessed 1515 samples from the Children's Oncology Group Phase 3 AML clinical trial (AAML1031, NCT01371981) for the effects of transit time and tube type. Protein expression from shipped blood samples was stable if processed in ≤72 h. While protein expression in pre-chemotherapy samples was stable in both heparin and CS tubes, post-chemotherapy samples were stable in only CS tubes. RPPA protein extremes is a successful quality control measure to identify and exclude poor quality samples. These data demonstrate that a majority of shipped proteins can be accurately assessed using RPPA. SIGNIFICANCE: RPPA can assess protein abundance and activation states in large numbers of samples using small amounts of material, making this method ideal for use in multi-institution clinical trials. However, there is little known about the effect of preanalytical handling variables on protein stability and the integrity of protein concentrations after sample collection and shipping. In this study, we used RPPA to assess preanalytical variables that could potentially affect protein concentrations. We found that the preanalytical variables of shipping, transit time, and temperature had minimal effects on RPPA protein concentration distributions in peripheral blood and bone marrow, demonstrating that these preanalytical variables could be successfully managed in a multi-site clinical trial setting.
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Affiliation(s)
- Terzah M Horton
- Department of Pediatrics, Texas Children's Cancer Center/Baylor College of Medicine, 1102 Bates, Suite 750, Houston, TX, United States.
| | - Fieke W Hoff
- Department of Pediatric Oncology/Hematology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anneke van Dijk
- Department of Pediatric Oncology/Hematology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gaye N Jenkins
- Department of Pediatrics, Texas Children's Cancer Center/Baylor College of Medicine, 1102 Bates, Suite 750, Houston, TX, United States
| | - Debra Morrison
- The Feinstein Institute for Medical Research, 350 Community Dr., Manhasset, NY, United States
| | - Teena Bhatla
- Children's Hospital of New Jersey at Newark, Beth Israel Medical Center, NJ, United States
| | - Laura Hogan
- Department of Pediatrics, Stony Brook Children's HSCT11-061, Stony Brook, NY, United States
| | - Eleny Romanos-Sirakis
- Department of Pediatric Hematology/Oncology, Staten Island University Northwell Health, 475 Seaview Ave., Staten Island, NY, United States
| | - Julia Meyer
- University of California San Francisco, San Francisco, CA, United States.
| | - William L Carroll
- New York University/Langone Medical Center, 160 E. 32nd St., New York, NY, United States
| | - Yihua Qiu
- Departments of Leukemia and Stem Cell Transplantation and Cellular Therapy, University of Texas, M.D. Anderson Cancer Center, Houston, TX, United States
| | - Tao Wang
- Department of Biostatistics, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States
| | - Qianxing Mo
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612, United States
| | - Steven M Kornblau
- Departments of Leukemia and Stem Cell Transplantation and Cellular Therapy, University of Texas, M.D. Anderson Cancer Center, Houston, TX, United States
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Hunt CM, Benedict MQ, Collins CM, Dotson EM. Surviving the Journey: Comparisons of Temperature-Stabilizing Materials for Living Arthropod Shipments. JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION 2020; 36:61-65. [PMID: 33647126 DOI: 10.2987/19-6865.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Shipments of living mosquitoes and other arthropods require temperatures that are within a range that is compatible with their health and survival. In addition to express shipping and insulated containers, shipments often include materials that either store heat (i.e., have thermal mass) or otherwise stabilize the temperature. In this paper, we present the results of comparisons of thermal mass and phase change materials to stabilize the temperature under various conditions. We compared a rigid foam refrigerant and a number of phase change materials to bubble wrap for their capacity to moderate temperature change by measuring the temperatures in standard uninsulated shipping containers during exposure to high (37°C), cold (4°C), and freezing (-20°C) temperatures. We make recommendations for shipments depending on the ambient conditions that are expected to be experienced en route.
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Affiliation(s)
- Catherine M Hunt
- Centers for Disease Control and Prevention, 1600 Clifton Road, NE, Atlanta, GA 30329-4027, USA
| | - Mark Q Benedict
- Centers for Disease Control and Prevention, 1600 Clifton Road, NE, Atlanta, GA 30329-4027, USA
| | - C Matilda Collins
- Centre for Environmental Policy, Imperial College London, 16-18 Prince's Gardens, London SW7 1NE United Kingdom
| | - Ellen M Dotson
- Centers for Disease Control and Prevention, 1600 Clifton Road, NE, Atlanta, GA 30329-4027, USA
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Georgiou M, Chichagova V, Hilgen G, Dorgau B, Sernagor E, Armstrong L, Lako M. Room temperature shipment does not affect the biological activity of pluripotent stem cell-derived retinal organoids. PLoS One 2020; 15:e0233860. [PMID: 32479513 PMCID: PMC7263587 DOI: 10.1371/journal.pone.0233860] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/13/2020] [Indexed: 01/08/2023] Open
Abstract
The generation of laminated and light responsive retinal organoids from induced pluripotent stem cells (iPSCs) provides a powerful tool for the study of retinal diseases and drug discovery and a robust platform for cell-based therapies. The aim of this study is to investigate whether retinal organoids can retain their morphological and functional characteristics upon storage at room temperature (RT) conditions and shipment by air using a commercially available container that maintains the environment at ambient temperature. Morphological analysis and measurements of neuroepithelial thickness revealed no differences between control, RT incubated and shipped organoids. Similarly immunohistochemical analysis showed no differences in cell type composition and position within the laminated retinal structure. All groups showed a similar response to light, suggesting that the biological function of retinal organoids was not affected by RT storage or shipment. These findings provide an advance in transport of ready-made retinal organoids, increasing their availability to many research and pharma labs worldwide and facilitating cross-collaborative research.
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Affiliation(s)
- Maria Georgiou
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom
| | - Valeria Chichagova
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom.,Newcells Biotech Ltd, Newcastle upon Tyne, England, United Kingdom
| | - Gerrit Hilgen
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom
| | - Birthe Dorgau
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom.,Newcells Biotech Ltd, Newcastle upon Tyne, England, United Kingdom
| | - Evelyne Sernagor
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom
| | - Lyle Armstrong
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom.,Newcells Biotech Ltd, Newcastle upon Tyne, England, United Kingdom
| | - Majlinda Lako
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, England, United Kingdom
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Ma L, Tian M. [Feasibility of an injectable and in situ gelling gelatin hydrogel for demineralized bone matrix powder delivery]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:300-305. [PMID: 29806258 DOI: 10.7507/1002-1892.201611113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To introduce an injectable and in situ gelling gelatin hydrogel, and to explore the possibility as a carrier for demineralized bone matrix (DBM) powder delivery. Methods First, thiolated gelatin was prepared and the thiol content was determined by Ellman method, and then the injectable and in situ gelling gelatin hydrogel (Gel) was formed by crosslinking of the thiolated gelatin and poly (ethylene oxide) diacrylate and the gelation time was determined by inverted method. Finally, the DBM-Gel composite was prepared by mixing Gel and DBM powder. The cytotoxicity was tested by live/dead staining and Alamar blue assay of the encapsulated cells in the DBM-Gel. For in vitro cell induction, C2C12 cells were firstly incubated onto the surface of the DBM and then the composite was prepared. The experiment included two groups: DBM-Gel and DBM. The alkaline phosphatase (ALP) activity was determined at 1, 3, 5, and 7 days after culture. In vivo osteoinductivity was evaluated using ectopic bone formation model of nude rats. Histological observation and the ALP activity was measured in DBM-Gel and DBM groups at 4 weeks after implantation. Results The thiol content in the thiolated gelatin was (0.51±0.03) mmol/g determined by Ellman method. The gelation time of the hydrogel was (6±1) minutes. DBM powder can be mixed with the hydrogel and injected into the implantation site within the gelation time. The cells in the DBM-Gel exhibited spreading morphology and connected each other in part with increasing culture time. The viability of the cells was 95.4%±1.9%, 97.3%±1.3%, and 96.1%±1.6% at 1, 3, and 7 days after culture, respectively. The relative proliferation was 1.0±0.0, 1.1±0.1, 1.5±0.1, and 1.6±0.1 at 1, 3, 5, and 7 days after culture respectively. In vitro induction showed that the ALP activity of the DBM-Gel group was similar to that of the DBM group, showing no significant difference ( P>0.05). With increasing culture time, the ALP activities in both groups increased gradually and the activity at 5 and 7 days was significantly higher than that at 1 and 3 days ( P<0.05), while there was no significant difference between at 1 and 3 days, and between 5 and 7 days ( P>0.05). At 4 weeks after implantation in vivo, new bone and cartilage were observed, but no bone marrow formation in DBM-Gel group; in DBM group, new bone, new cartilage, and bone marrow formation were observed. The histological osteoinduction scores of DBM-Gel and DBM groups were 4.0 and 4.5, respectively. The ALP activities of DBM-Gel and DBM groups were respectively (119.4±22.7) and (146.7±13.0) μmol/mg protein/min, showing no significant difference ( t=-2.085, P=0.082). Conclusion The injectable and in situ gelling gelatin hydrogel for delivery of DBM is feasible.
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Affiliation(s)
- Lu Ma
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Meng Tian
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China;Neurosurgery Research Laboratory, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
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