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Amini A, Chien S, Bayat M. Impact of Ultrasound Therapy on Stem Cell Differentiation - A Systematic Review. Curr Stem Cell Res Ther 2020; 15:462-472. [PMID: 32096749 DOI: 10.2174/1574888x15666200225124934] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE This is a systematic review of the effects of low-intensity pulsed ultrasound (LIPUS) on stem cell differentiation. BACKGROUND DATA Recent studies have investigated several types of stem cells from different sources in the body. These stem cells should strictly be certified and promoted for cell therapies before being used in medical applications. LIPUS has been used extensively in treatment centers and in research to promote stem cell differentiation, function, and proliferation. MATERIALS AND METHODS The databases of PubMed, Google Scholar, and Scopus were searched for abstracts and full-text scientific papers published from 1989-2019 that reported the application of LIPUS on stem cell differentiation. Related English language articles were found using the following defined keywords: low-intensity pulsed ultrasound, stem cell, differentiation. Criteria for inclusion in the review were: LIPUS with frequencies of 1-3 MHz and pulsed ultrasound intensity of <500 mW/cm2. Duration, exposure time, and cell sources were taken into consideration. RESULTS Fifty-two articles were selected based on the inclusion criteria. Most articles demonstrated that the application of LIPUS had positive effects on stem cell differentiation. However, some authors recommended that LIPUS combined with other physical therapy aides was more effective in stem cell differentiation. CONCLUSION LIPUS significantly increases the level of stem cell differentiation in cells derived mainly from bone marrow mesenchymal stem cells. There is a need for further studies to analyze the effect of LIPUS on cells derived from other sources, particularly adipose tissue-derived mesenchymal stem cells, for treating hard diseases, such as osteoporosis and diabetic foot ulcer. Due to a lack of reporting on standard LIPUS parameters in the field, more experiments comparing the protocols for standardization of LIPUS parameters are needed to establish the best protocol, which would allow for the best results.
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Affiliation(s)
- Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville, Louisville, KY, United States
| | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Price Institute of Surgical Research, University of Louisville, Louisville, KY, United States
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Minto J, Zhou X, Osborn J, Zhang LG, Sarkar K, Rao RD. Three-Dimensional Printing: A Catalyst for a Changing Orthopaedic Landscape. JBJS Rev 2020; 8:e0076. [DOI: 10.2106/jbjs.rvw.19.00076] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Nasb M, Liangjiang H, Gong C, Hong C. Human adipose-derived Mesenchymal stem cells, low-intensity pulsed ultrasound, or their combination for the treatment of knee osteoarthritis: study protocol for a first-in-man randomized controlled trial. BMC Musculoskelet Disord 2020; 21:33. [PMID: 31941483 PMCID: PMC6964002 DOI: 10.1186/s12891-020-3056-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 01/08/2020] [Indexed: 01/22/2023] Open
Abstract
Background Human adipose-derived Mesenchymal stem cells (HADMSCs) have proven their efficacy in treating osteoarthritis (OA), in earlier preclinical and clinical studies. As the tissue repairers are under the control of mechanical and biochemical signals, improving regeneration outcomes using such signals has of late been the focus of attention. Among mechanical stimuli, low-intensity pulsed ultrasound (LIPUS) has recently shown promise both in vitro and in vivo. This study will investigate the potential of LIPUS in enhancing the regeneration process of an osteoarthritic knee joint. Methods This study involves a prospective, randomized, placebo-controlled, and single-blind trial based on the SPIRIT guidelines, and aims to recruit 96 patients initially diagnosed with knee osteoarthritis, following American College of Rheumatology criteria. Patients will be randomized in a 1:1:1 ratio to receive Intraarticular HADMSCs injection with LIPUS, Intraarticular HADMSCs injection with shame LIPUS, or Normal saline with LIPUS. The primary outcome is Western Ontario and McMaster Universities Index of OA (WOMAC) score, while the secondary outcomes will be other knee structural changes, and lower limb muscle strength such as the knee cartilage thickness measured by MRI. Blinded assessments will be performed at baseline (1 month prior to treatment), 1 month, 3 months, and 6 months following the interventions. Discussion This trial will be the first clinical study to comprehensively investigate the safety and efficacy of LIPUS on stem cell therapy in OA patients. The results may provide evidence of the effectiveness of LIPUS in improving stem cell therapy and deliver valuable information for the design of subsequent trials. Trial registration This study had been prospectively registered with the Chinese Clinical Trials Registry. registration number: ChiCTR1900025907 at September 14, 2019.
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Affiliation(s)
- Mohammad Nasb
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.,Department of Physical Therapy, Health science faculty, Albaath University, Homs, Syria
| | - Huang Liangjiang
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Chenzi Gong
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Chen Hong
- Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
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A Pilot Study of Parameter-Optimized Low-Intensity Pulsed Ultrasound Stimulation for the Bone Marrow Mesenchymal Stem Cells Viability Improvement. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2019; 2019:8386024. [PMID: 31662789 PMCID: PMC6791242 DOI: 10.1155/2019/8386024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/23/2019] [Indexed: 11/30/2022]
Abstract
To investigate how a back propagation neural network based on genetic algorithm (GA-BPNN) optimizes the low-intensity pulsed ultrasound (LIPUS) stimulation parameters to improve the bone marrow mesenchymal stem cells (BMSCs) viability further. The LIPUS parameters were set at various frequencies (0.6, 0.8, 1.0, and 1.2 MHz), voltages (5, 6, 7, and 8 V), and stimulation durations (3, 6, and 9 minutes). As only some discrete points can be set up in the experiments, the optimal LIPUS stimulation parameter may not be in the value of these settings. The GA-BPNN algorithm is used to optimize parameters of LIPUS to increase the BMSCs viability further. The BMSCs viability of the LIPUS-treated group was improved up to 19.57% (P < 0.01). With the optimization via the GA-BPNN algorithm, the viability of BMSCs was further improved by about 5.36% (P < 0.01) under the optimized condition of 6.92 V, 1.02 MHz, and 7.3 min. LIPUS is able to improve the BMSCs viability, which can be improved further by LIPUS with parameter optimization via GA-BPNN algorithm.
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55
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Razavi M, Zheng F, Telichko A, Wang J, Ren G, Dahl J, Thakor AS. Improving the Function and Engraftment of Transplanted Pancreatic Islets Using Pulsed Focused Ultrasound Therapy. Sci Rep 2019; 9:13416. [PMID: 31527773 PMCID: PMC6746980 DOI: 10.1038/s41598-019-49933-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/03/2019] [Indexed: 11/24/2022] Open
Abstract
This study demonstrates that pulsed focused ultrasound (pFUS) therapy can non-invasively enhance the function and engraftment of pancreatic islets following transplantation. In vitro, we show that islets treated with pFUS at low (peak negative pressure (PNP): 106kPa, spatial peak temporal peak intensity (Isptp): 0.71 W/cm2), medium (PNP: 150kPa, Isptp: 1.43 W/cm2) or high (PNP: 212kPa, Isptp: 2.86 W/cm2) acoustic intensities were stimulated resulting in an increase in their function (i.e. insulin secretion at low-intensity: 1.15 ± 0.17, medium-intensity: 2.02 ± 0.25, and high-intensity: 2.54 ± 0.38 fold increase when compared to control untreated islets; P < 0.05). Furthermore, we have shown that this improvement in islet function is a result of pFUS increasing the intracellular concentration of calcium (Ca2+) within islets which was also linked to pFUS increasing the resting membrane potential (Vm) of islets. Following syngeneic renal sub-capsule islet transplantation in C57/B6 mice, pFUS (PNP: 2.9 MPa, Isptp: 895 W/cm2) improved the function of transplanted islets with diabetic animals rapidly re-establishing glycemic control. In addition, pFUS was able to enhance the engraftment by facilitating islet revascularization and reducing inflammation. Given a significant number of islets are lost immediately following transplantation, pFUS has the potential to be used in humans as a novel non-invasive therapy to facilitate islet function and engraftment, thereby improving the outcome of diabetic patients undergoing islet transplantation.
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Affiliation(s)
- Mehdi Razavi
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA
| | - Fengyang Zheng
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA.,Department of Ultrasound, Zhongshan Hospital, Fudan University and Shanghai Institute of Medical Imaging, Shanghai, 200032, China
| | - Arsenii Telichko
- Jeremy Dahl Ultrasound Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA
| | - Jing Wang
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA
| | - Gang Ren
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA
| | - Jeremy Dahl
- Jeremy Dahl Ultrasound Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA
| | - Avnesh S Thakor
- Interventional Regenerative Medicine and Imaging Laboratory, Stanford University School of Medicine, Department of Radiology, Palo Alto, California, 94304, USA.
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Hann SY, Cui H, Esworthy T, Miao S, Zhou X, Lee SJ, Fisher JP, Zhang LG. Recent advances in 3D printing: vascular network for tissue and organ regeneration. Transl Res 2019; 211:46-63. [PMID: 31004563 PMCID: PMC6702061 DOI: 10.1016/j.trsl.2019.04.002] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/31/2019] [Accepted: 04/02/2019] [Indexed: 12/16/2022]
Abstract
Over the past years, the fabrication of adequate vascular networks has remained the main challenge in engineering tissues due to technical difficulties, while the ultimate objective of tissue engineering is to create fully functional and sustainable organs and tissues to transplant in the human body. There have been a number of studies performed to overcome this limitation, and as a result, 3D printing has become an emerging technique to serve in a variety of applications in constructing vascular networks within tissues and organs. 3D printing incorporated technical approaches allow researchers to fabricate complex and systematic architecture of vascular networks and offer various selections for fabrication materials and printing techniques. In this review, we will discuss materials and strategies for 3D printed vascular networks as well as specific applications for certain vascularized tissue and organ regeneration. We will also address the current limitations of vascular tissue engineering and make suggestions for future directions research may take.
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Affiliation(s)
- Sung Yun Hann
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - Haitao Cui
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - Timothy Esworthy
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - Shida Miao
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - Xuan Zhou
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - Se-Jun Lee
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland; Center for Engineering Complex Tissues, University of Maryland, College Park, Maryland
| | - Lijie Grace Zhang
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC; Department of Electrical and Computer Engineering, The George Washington University, Washington, DC; Department of Biomedical Engineering, The George Washington University, Washington, DC; Department of Medicine, The George Washington University Medical Center, Washington, DC.
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57
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Xie S, Jiang X, Wang R, Xie S, Hua Y, Zhou S, Yang Y, Zhang J. Low-intensity pulsed ultrasound promotes the proliferation of human bone mesenchymal stem cells by activating PI3K/AKt signaling pathways. J Cell Biochem 2019; 120:15823-15833. [PMID: 31090943 DOI: 10.1002/jcb.28853] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/17/2019] [Accepted: 02/28/2019] [Indexed: 12/27/2022]
Abstract
Low-intensity pulsed ultrasound (LIPUS) is a promising therapy that is widely used in clinical applications and fundamental research. Previous research has shown that LIPUS exposure has a positive effect on stem cell proliferation. However, the impact of LIPUS exposure on human bone marrow mesenchymal stem cells (hBMSCs) remains unknown. In our study, the effect and mechanism of LIPUS exposure on the proliferation of hBMSCs were investigated, and the optimal parameters of LIPUS were determined. hBMSCs were obtained and identified by flow cytometry, and the proliferation of hBMSCs was measured using the Cell Counting Kit-8 assay to determine cell cycle and cell count. Expression levels of the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKt) pathway proteins and cyclin D1 were determined by western blot analysis. Next, hBMSCs were successfully cultured and identified as multipotent mesenchymal stem cells. We found that LIPUS could promote the proliferation of hBMSCs when the exposure time was 5 or 10 minutes per day. Furthermore, 50 or 60 mW/cm2 LIPUS had a more significant effect on cell proliferation, but if cells were irradiated by LIPUS for 20 minutes once a day, an intensity of at least 50 mW/cm2 could markedly inhibit cell growth. Cell cycle analysis demonstrated that LIPUS treatment drives cells to enter S and G2/M phases from the G0/G1 phase. LIPUS exposure increased phosphorylation of PI3K/AKt and significantly upregulated expression of cyclin D1. However, these effects were inhibited when cells were treated with PI3K inhibitor (LY294002), which in turn reduced LIPUS-mediated proliferation of hBMSCs. These results suggest that LIPUS exposure may be involved in the proliferation of hBMSCs via activation of the PI3K/AKt signaling pathway and high expression of cyclin D1, and the intensity of 50 or 60 mW/cm2 and exposure time of 5 minutes were determined to be the optimal parameters for LIPUS exposure.
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Affiliation(s)
- Shucai Xie
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
| | - Xili Jiang
- Department of Radiology, The Second People's Hospital of Hunan Province/Brain Hospital of Hunan Province, Changsha, Hunan, People's Republic of China
| | - Rui Wang
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
| | - Shaowei Xie
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
| | - Yongyong Hua
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
| | - Shuai Zhou
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
| | - Yijun Yang
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
| | - Jianquan Zhang
- Department of Hepatobiliary Surgery, Haikou People's Hospital/Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, People's Republic of China
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58
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Midha S, Dalela M, Sybil D, Patra P, Mohanty S. Advances in three-dimensional bioprinting of bone: Progress and challenges. J Tissue Eng Regen Med 2019; 13:925-945. [PMID: 30812062 DOI: 10.1002/term.2847] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 02/19/2019] [Accepted: 02/21/2019] [Indexed: 12/28/2022]
Abstract
Several attempts have been made to engineer a viable three-dimensional (3D) bone tissue equivalent using conventional tissue engineering strategies, but with limited clinical success. Using 3D bioprinting technology, scientists have developed functional prototypes of clinically relevant and mechanically robust bone with a functional bone marrow. Although the field is in its infancy, it has shown immense potential in the field of bone tissue engineering by re-establishing the 3D dynamic micro-environment of the native bone. Inspite of their in vitro success, maintaining the viability and differentiation potential of such cell-laden constructs overtime, and their subsequent preclinical testing in terms of stability, mechanical loading, immune responses, and osseointegrative potential still needs to be explored. Progress is slow due to several challenges such as but not limited to the choice of ink used for cell encapsulation, optimal cell source, bioprinting method suitable for replicating the heterogeneous tissues and organs, and so on. Here, we summarize the recent advancements in bioprinting of bone, their limitations, challenges, and strategies for future improvisations. The generated knowledge will provide deep insights on our current understanding of the cellular interactions with the hydrogel matrices and help to unravel new methodologies for facilitating precisely regulated stem cell behaviour.
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Affiliation(s)
- Swati Midha
- Stem Cell Facility (DBT-Centre of Excellence for Stem Cell Research), All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Manu Dalela
- Stem Cell Facility (DBT-Centre of Excellence for Stem Cell Research), All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Deborah Sybil
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, India
| | - Prabir Patra
- Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT.,Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT
| | - Sujata Mohanty
- Stem Cell Facility (DBT-Centre of Excellence for Stem Cell Research), All India Institute of Medical Sciences (AIIMS), New Delhi, India
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59
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Martínez-Moreno D, Jiménez G, Gálvez-Martín P, Rus G, Marchal JA. Cartilage biomechanics: A key factor for osteoarthritis regenerative medicine. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1067-1075. [PMID: 30910703 DOI: 10.1016/j.bbadis.2019.03.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 03/18/2019] [Accepted: 03/20/2019] [Indexed: 11/26/2022]
Abstract
Osteoarthritis (OA) is a joint disorder that is highly extended in the global population. Several researches and therapeutic strategies have been probed on OA but without satisfactory long-term results in joint replacement. Recent evidences show how the cartilage biomechanics plays a crucial role in tissue development. This review describes how physics alters cartilage and its extracellular matrix (ECM); and its role in OA development. The ECM of the articular cartilage (AC) is widely involved in cartilage turnover processes being crucial in regeneration and joint diseases. We also review the importance of physicochemical pathways following the external forces in AC. Moreover, new techniques probed in cartilage tissue engineering for biomechanical stimulation are reviewed. The final objective of these novel approaches is to create a cellular implant that maintains all the biochemical and biomechanical properties of the original tissue for long-term replacements in patients with OA.
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Affiliation(s)
- D Martínez-Moreno
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research, University of Granada, Granada E-18100, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
| | - G Jiménez
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research, University of Granada, Granada E-18100, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Biosanitary Research Institute of Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada E-18071, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada E-18016, Spain
| | - P Gálvez-Martín
- Advanced Therapies Area, Pharmascience Division, Bioibérica S.A.U., E-08029 Barcelona, Spain; Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Granada E-18071, Spain
| | - G Rus
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research, University of Granada, Granada E-18100, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Structural Mechanics, University of Granada, Politécnico de Fuentenueva, Granada E-18071, Spain.
| | - J A Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research, University of Granada, Granada E-18100, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Biosanitary Research Institute of Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada E-18071, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada E-18016, Spain.
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60
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Raic A, Naolou T, Mohra A, Chatterjee C, Lee-Thedieck C. 3D models of the bone marrow in health and disease: yesterday, today and tomorrow. MRS COMMUNICATIONS 2019; 9:37-52. [PMID: 30931174 PMCID: PMC6436722 DOI: 10.1557/mrc.2018.203] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/10/2018] [Indexed: 05/12/2023]
Abstract
The complex interaction between hematopoietic stem cells (HSCs) and their microenvironment in the human bone marrow ensures a life-long blood production by balancing stem cell maintenance and differentiation. This so-called HSC niche can be disturbed by malignant diseases. Investigating their consequences on hematopoiesis requires deep understanding of how the niches function in health and disease. To facilitate this, biomimetic models of the bone marrow are needed to analyse HSC maintenance and hematopoiesis under steady-state and diseased conditions. Here, 3D bone marrow models, their fabrication methods (including 3D bioprinting) and implementations recapturing bone marrow functions in health and diseases, are presented.
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Affiliation(s)
- Annamarija Raic
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Toufik Naolou
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Anna Mohra
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Chandralekha Chatterjee
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
| | - Cornelia Lee-Thedieck
- Karlsruhe Institute of Technology (KIT), Institute of Functional
Interfaces, 76344 Eggenstein-Leopoldshafen, Germany
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Przekora A. Current Trends in Fabrication of Biomaterials for Bone and Cartilage Regeneration: Materials Modifications and Biophysical Stimulations. Int J Mol Sci 2019; 20:E435. [PMID: 30669519 PMCID: PMC6359292 DOI: 10.3390/ijms20020435] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/15/2019] [Accepted: 01/18/2019] [Indexed: 12/22/2022] Open
Abstract
The aim of engineering of biomaterials is to fabricate implantable biocompatible scaffold that would accelerate regeneration of the tissue and ideally protect the wound against biodevice-related infections, which may cause prolonged inflammation and biomaterial failure. To obtain antimicrobial and highly biocompatible scaffolds promoting cell adhesion and growth, materials scientists are still searching for novel modifications of biomaterials. This review presents current trends in the field of engineering of biomaterials concerning application of various modifications and biophysical stimulation of scaffolds to obtain implants allowing for fast regeneration process of bone and cartilage as well as providing long-lasting antimicrobial protection at the site of injury. The article describes metal ion and plasma modifications of biomaterials as well as post-surgery external stimulations of implants with ultrasound and magnetic field, providing accelerated regeneration process. Finally, the review summarizes recent findings concerning the use of piezoelectric biomaterials in regenerative medicine.
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Affiliation(s)
- Agata Przekora
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, W. Chodzki 1 Street, 20-093 Lublin, Poland.
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62
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Oberoi G, Nitsch S, Edelmayer M, Janjić K, Müller AS, Agis H. 3D Printing-Encompassing the Facets of Dentistry. Front Bioeng Biotechnol 2018; 6:172. [PMID: 30525032 PMCID: PMC6262086 DOI: 10.3389/fbioe.2018.00172] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/29/2018] [Indexed: 12/14/2022] Open
Abstract
This narrative review presents an overview on the currently available 3D printing technologies and their utilization in experimental, clinical and educational facets, from the perspective of different specialties of dentistry, including oral and maxillofacial surgery, orthodontics, endodontics, prosthodontics, and periodontics. It covers research and innovation, treatment modalities, education and training, employing the rapidly developing 3D printing process. Research-oriented advancement in 3D printing in dentistry is witnessed by the rising number of publications on this topic. Visualization of treatment outcomes makes it a promising clinical tool. Educational programs utilizing 3D-printed models stimulate training of dental skills in students and trainees. 3D printing has enormous potential to ameliorate oral health care in research, clinical treatment, and education in dentistry.
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Affiliation(s)
- Gunpreet Oberoi
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria
| | - Sophie Nitsch
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Department of Health Sciences, FH Wien, University of Applied Sciences, Vienna, Austria
| | - Michael Edelmayer
- Austrian Cluster for Tissue Regeneration, Vienna, Austria.,Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Klara Janjić
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Anna Sonja Müller
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Hermann Agis
- Department of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.,Austrian Cluster for Tissue Regeneration, Vienna, Austria
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Osborn J, Aliabouzar M, Zhou X, Rao R, Zhang LG, Sarkar K. Enhanced Osteogenic Differentiation of Human Mesenchymal Stem Cells Using Microbubbles and Low Intensity Pulsed Ultrasound on 3D Printed Scaffolds. ACTA ACUST UNITED AC 2018; 3:e1800257. [PMID: 32627376 DOI: 10.1002/adbi.201800257] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/08/2018] [Indexed: 11/05/2022]
Abstract
Lipid-coated microbubbles, clinically approved as contrast enhancing agents for ultrasound imaging, are investigated for the first time for their possible applications in bone tissue engineering. Effects of microbubbles (average diameter 1.1 µm) coated by a mixture of lipids (1,2-dipalmitoyl-sn-glycero-3-phosphocholine, 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000], and 1,2-dipalmitoyl-3-trimethylmmonium-propane) in the presence of low intensity pulsed ultrasound (LIPUS) on human mesenchymal stem cells seeded on 3D printed poly(lactic acid) porous scaffolds are investigated. LIPUS stimulation (30 mW cm-2 , 1.5 MHz, 20% duty cycle) for 3 min a day with 0.5% v/v microbubbles results in a significant increase in proliferation (up to 19.3%) when compared to control after 1, 3, and 5 d. A 3-week osteogenic differentiation study shows a significant increase in total protein content (up to 27.5%), calcium deposition (up to 4.3%), and alkaline phosphatase activity (up to 43.1%) initiated by LIPUS with and without the presence of microbubbles. The microbubbles are found to remain stable during exposure, and their sustained oscillations demonstrably help focus the LIPUS energy toward enhanced cellular response. Integrating LIPUS and microbubbles promises to be a novel and effective strategy for bone tissue engineering and regeneration therapies.
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Affiliation(s)
- Jenna Osborn
- Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Mitra Aliabouzar
- Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Xuan Zhou
- Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Raj Rao
- Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA.,Orthopaedic Surgery, School of Medicine, George Washington University, Washington, DC, 20052, USA
| | - Lijie Grace Zhang
- Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
| | - Kausik Sarkar
- Mechanical and Aerospace Engineering, George Washington University, Washington, DC, 20052, USA
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64
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3D Bone Biomimetic Scaffolds for Basic and Translational Studies with Mesenchymal Stem Cells. Int J Mol Sci 2018; 19:ijms19103150. [PMID: 30322134 PMCID: PMC6213614 DOI: 10.3390/ijms19103150] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/04/2018] [Accepted: 10/10/2018] [Indexed: 12/22/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are recognized as an attractive tool owing to their self-renewal and differentiation capacity, and their ability to secrete bioactive molecules and to regulate the behavior of neighboring cells within different tissues. Accumulating evidence demonstrates that cells prefer three-dimensional (3D) to 2D culture conditions, at least because the former are closer to their natural environment. Thus, for in vitro studies and in vivo utilization, great effort is being dedicated to the optimization of MSC 3D culture systems in view of achieving the intended performance. This implies understanding cell–biomaterial interactions and manipulating the physicochemical characteristics of biomimetic scaffolds to elicit a specific cell behavior. In the bone field, biomimetic scaffolds can be used as 3D structures, where MSCs can be seeded, expanded, and then implanted in vivo for bone repair or bioactive molecules release. Actually, the union of MSCs and biomaterial has been greatly improving the field of tissue regeneration. Here, we will provide some examples of recent advances in basic as well as translational research about MSC-seeded scaffold systems. Overall, the proliferation of tools for a range of applications witnesses a fruitful collaboration among different branches of the scientific community.
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65
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Behrmann L, Wellbrock J, Fiedler W. Acute Myeloid Leukemia and the Bone Marrow Niche-Take a Closer Look. Front Oncol 2018; 8:444. [PMID: 30370251 PMCID: PMC6195156 DOI: 10.3389/fonc.2018.00444] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 09/24/2018] [Indexed: 12/20/2022] Open
Abstract
The bone marrow is the home of hematopoiesis and is therefore a hotspot for the development of hematopoietic diseases. Complex interactions between the bone marrow microenvironment and hematopoietic stem cells must find a balance between proliferation, differentiation and homeostasis of the stem cell compartment. Changes in this tightly regulated network can provoke malignant transformation, leading to hematopoietic diseases. Here we focus on acute myeloid leukemia (AML), since this is the most frequent acute leukemia in adulthood with very poor overall survival rates and where relapse after chemotherapy continues to be a major challenge, driving demand for new therapeutic strategies. Current research is focusing on the identification of specific interactions between leukemic blasts and their niche components, which may be exploited as novel treatment targets along with induction chemotherapy. Significant progress has been gained over the last few years in the field of high-resolution imaging. Confocal ex vivo and intravital microscopy have revealed a detailed map of bone marrow structures and components; as well as identifying numerous alterations in the stem cell niche that correspond to disease progression. However, the underlying mechanisms are still not completely understood and due to the complexity, their elucidation remains a challenging. This review discusses the constitution of the AML niche in the bone marrow, the improvement in visualization of the complex three-dimensional niche structures and points out new therapeutic strategies to increase the overall survival of AML patients.
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Affiliation(s)
- Lena Behrmann
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald University Cancer Center, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Jasmin Wellbrock
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald University Cancer Center, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Walter Fiedler
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald University Cancer Center, University Medical Center Hamburg Eppendorf, Hamburg, Germany
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66
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Ding S, Feng L, Wu J, Zhu F, Tan Z, Yao R. Bioprinting of Stem Cells: Interplay of Bioprinting Process, Bioinks, and Stem Cell Properties. ACS Biomater Sci Eng 2018; 4:3108-3124. [PMID: 33435052 DOI: 10.1021/acsbiomaterials.8b00399] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Combining the advantages of 3D bioprinting technology and biological characteristics of stem cells, bioprinting of stem cells is recognized as a novel technology with broad applications in biological study, drug testing, tissue engineering, regenerative medicine, etc. However, the biological performance and functional reconstruction of stem cells are greatly influenced by both the bioprinting process and post-bioprinting culture conditions, which are critical factors to consider for further applications. Here we review the recent development of stem cell bioprinting technology and conclude on the major factors regulating stem cell viability, proliferation, differentiation, and function from the aspects of the choice of bioprinting techniques, the modulation of bioprinting parameters, and the regulation of the stem cell niche in the whole lifespan of bioprinting practices. We aim to provide a comprehensive consideration and guidance regarding the bioprinting of stem cells for optimization of this promising technology in biological and medical applications.
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Affiliation(s)
- Supeng Ding
- Department of Mechanical Engineering, Biomanufacturing and Rapid Forming Technology, Key Laboratory of Beijing, Tsinghua University, Beijing 100084, People's Republic of China.,Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Lu Feng
- Department of Mechanical Engineering, Biomanufacturing and Rapid Forming Technology, Key Laboratory of Beijing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Jiayang Wu
- Department of Mechanical Engineering, Biomanufacturing and Rapid Forming Technology, Key Laboratory of Beijing, Tsinghua University, Beijing 100084, People's Republic of China.,Department of Construction Management, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fei Zhu
- Department of Mechanical Engineering, Biomanufacturing and Rapid Forming Technology, Key Laboratory of Beijing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Ze'en Tan
- Department of Mechanical Engineering, Biomanufacturing and Rapid Forming Technology, Key Laboratory of Beijing, Tsinghua University, Beijing 100084, People's Republic of China
| | - Rui Yao
- Department of Mechanical Engineering, Biomanufacturing and Rapid Forming Technology, Key Laboratory of Beijing, Tsinghua University, Beijing 100084, People's Republic of China
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67
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Aliabouzar M, Zhang GL, Sarkar K. Acoustic and mechanical characterization of 3D-printed scaffolds for tissue engineering applications. Biomed Mater 2018; 13:055013. [DOI: 10.1088/1748-605x/aad417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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68
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Cui H, Miao S, Esworthy T, Zhou X, Lee SJ, Liu C, Yu ZX, Fisher JP, Mohiuddin M, Zhang LG. 3D bioprinting for cardiovascular regeneration and pharmacology. Adv Drug Deliv Rev 2018; 132:252-269. [PMID: 30053441 PMCID: PMC6226324 DOI: 10.1016/j.addr.2018.07.014] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/22/2018] [Accepted: 07/20/2018] [Indexed: 12/18/2022]
Abstract
Cardiovascular disease (CVD) is a major cause of morbidity and mortality worldwide. Compared to traditional therapeutic strategies, three-dimensional (3D) bioprinting is one of the most advanced techniques for creating complicated cardiovascular implants with biomimetic features, which are capable of recapitulating both the native physiochemical and biomechanical characteristics of the cardiovascular system. The present review provides an overview of the cardiovascular system, as well as describes the principles of, and recent advances in, 3D bioprinting cardiovascular tissues and models. Moreover, this review will focus on the applications of 3D bioprinting technology in cardiovascular repair/regeneration and pharmacological modeling, further discussing current challenges and perspectives.
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Affiliation(s)
- Haitao Cui
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA
| | - Shida Miao
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA
| | - Timothy Esworthy
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA
| | - Xuan Zhou
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA
| | - Se-Jun Lee
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA
| | - Chengyu Liu
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Zu-Xi Yu
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA; Center for Engineering Complex Tissues, University of Maryland, College Park, MD 20742, USA
| | | | - Lijie Grace Zhang
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC 20052, USA; Department of Electrical and Computer Engineering, The George Washington University, Washington, DC 20052, USA; Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA; Department of Medicine, The George Washington University, Washington, DC 20052, USA.
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69
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Shuai C, Yang W, Peng S, Gao C, Guo W, Lai Y, Feng P. Physical stimulations and their osteogenesis-inducing mechanisms. Int J Bioprint 2018; 4:138. [PMID: 33102916 PMCID: PMC7581999 DOI: 10.18063/ijb.v4i2.138] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/09/2018] [Indexed: 12/27/2022] Open
Abstract
Physical stimulations such as magnetic, electric and mechanical stimulation could enhance cell activity and promote bone formation in bone repair process via activating signal pathways, modulating ion channels, regulating bonerelated gene expressions, etc. In this paper, bioeffects of physical stimulations on cell activity, tissue growth and bone healing were systematically summarized, which especially focused on their osteogenesis-inducing mechanisms. Detailedly, magnetic stimulation could produce Hall effect which improved the permeability of cell membrane and promoted the migration of ions, especially accelerating the extracellular calcium ions to pass through cell membrane. Electric stimulation could induce inverse piezoelectric effect which generated electric signals, accordingly up-regulating intracellular calcium levels and growth factor synthesis. And mechanical stimulation could produce mechanical signals which were converted into corresponding biochemical signals, thus activating various signaling pathways on cell membrane and inducing a series of gene expressions. Besides, bioeffects of physical stimulations combined with bone scaffolds which fabricated using 3D printing technology on bone cells were discussed. The equipments of physical stimulation system were described. The opportunities and challenges of physical stimulations were also presented from the perspective of bone repair.
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Affiliation(s)
- Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, China.,Jiangxi University of Science and Technology, Ganzhou, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
| | - Wenjing Yang
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Shuping Peng
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Chengde Gao
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Wang Guo
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, China
| | - Yuxiao Lai
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha, China
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70
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Piezoelectric materials as stimulatory biomedical materials and scaffolds for bone repair. Acta Biomater 2018; 73:1-20. [PMID: 29673838 DOI: 10.1016/j.actbio.2018.04.026] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/19/2018] [Accepted: 04/15/2018] [Indexed: 12/14/2022]
Abstract
The process of bone repair and regeneration requires multiple physiological cues including biochemical, electrical and mechanical - that act together to ensure functional recovery. Myriad materials have been explored as bioactive scaffolds to deliver these cues locally to the damage site, amongst these piezoelectric materials have demonstrated significant potential for tissue engineering and regeneration, especially for bone repair. Piezoelectric materials have been widely explored for power generation and harvesting, structural health monitoring, and use in biomedical devices. They have the ability to deform with physiological movements and consequently deliver electrical stimulation to cells or damaged tissue without the need of an external power source. Bone itself is piezoelectric and the charges/potentials it generates in response to mechanical activity are capable of enhancing bone growth. Piezoelectric materials are capable of stimulating the physiological electrical microenvironment, and can play a vital role to stimulate regeneration and repair. This review gives an overview of the association of piezoelectric effect with bone repair, and focuses on state-of-the-art piezoelectric materials (polymers, ceramics and their composites), the fabrication routes to produce piezoelectric scaffolds, and their application in bone repair. Important characteristics of these materials from the perspective of bone tissue engineering are highlighted. Promising upcoming strategies and new piezoelectric materials for this application are presented. STATEMENT OF SIGNIFICANCE Electrical stimulation/electrical microenvironment are known effect the process of bone regeneration by altering the cellular response and are crucial in maintaining tissue functionality. Piezoelectric materials, owing to their capability of generating charges/potentials in response to mechanical deformations, have displayed great potential for fabricating smart stimulatory scaffolds for bone tissue engineering. The growing interest of the scientific community and compelling results of the published research articles has been the motivation of this review article. This article summarizes the significant progress in the field with a focus on the fabrication aspects of piezoelectric materials. The review of both material and cellular aspects on this topic ensures that this paper appeals to both material scientists and tissue engineers.
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71
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Zu H, Yi X, Zhao D. Transcriptome sequencing analysis reveals the effect of combinative treatment with low‑intensity pulsed ultrasound and magnesium ions on hFOB1.19 human osteoblast cells. Mol Med Rep 2018; 18:749-762. [PMID: 29767241 PMCID: PMC6059703 DOI: 10.3892/mmr.2018.9006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 03/29/2018] [Indexed: 11/13/2022] Open
Abstract
Biodegradable magnesium (Mg) materials are considered ideal as osteosynthesis implants. However, clinical application has proven complex. This is primarily associated with the issue of reducing the extent of implant degradation to a range acceptable for the human body, while simultaneously enhancing osteogenesis or osteoinduction. In the present study, a combination of Mg ions and low-intensity pulsed ultrasound (LIPUS) treatment was applied in hFOB 1.19 human osteoblast cells as a potential strategy to resolve this issue. A total of 7,314 differentially expressed genes (DEGs) and 826 shared DEGs in hFOB1.19 osteoblast cells were identified by microarray analysis following treatment with Mg and/or LIPUS. Gene Ontology analysis demonstrated that among cells treated with a combination of Mg and LIPUS, DEGs were significantly enriched in various functional annotations, including ‘wound healing’, ‘transforming growth factor beta receptor signaling pathway’, ‘transcription, DNA-templated’, ‘receptor complex’, ‘nucleus’, ‘SMAD protein complex’, ‘DNA binding’, ‘metal ion binding’ and ‘GTPase activator activity’. Notably, the transforming growth factor (TGF)-β, mitogen-activated protein kinase (MAPK) and tumor necrosis factor (TNF) signaling pathways were preferentially overrepresented in the Mg and LIPUS combination group, which was subsequently confirmed by reverse transcription-quantitative polymerase chain reaction. Furthermore, genes involved in osteoblast mineralization promotion, including bone morphogenetic protein 6, noggin, bone morphogenetic protein receptor (BMPR)1A, BMPR2 and SMAD 5/8, were significantly upregulated following combination treatment compared with the control group. Genes involved in the promotion of migration, including c-Jun N-terminal kinase, doublecortin, paxillin and Jun proto-oncogene AP-1 transcription factor subunit, were also upregulated in the combination treatment group compared with the control group. The DEG data were supported by morphological observations of the osteoblasts using alizarin red S staining and wound healing assays, which indicated that Mg and LIPUS combinative treatment had a synergistic effect on osteoblast mineralization and migration. Additionally, the combined treatment significantly upregulated metal transporter genes associated with Mg entry, including ATPase Na+/K+-transporting subunit α1, cyclin and CBS domain divalent metal cation transport mediator 2, K+ voltage-gated channel subfamily J member 14, transient receptor potential cation channel (TRP) subfamily M member 7 and TRP subfamily V member 2. In summary, the findings of the present study revealed that combined stimulation with Mg and LIPUS may exhibit a synergistic effect on human osteoblast bone formation through the TGF-β, MAPK and TNF signaling pathways, while also facilitating Mg influx. The present study demonstrated the potential of combinative LIPUS and Mg treatment as a novel therapeutic strategy for enhancing the osteoinduction, biocompatibility and biosafety of biodegradable Mg implants.
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Affiliation(s)
- Haiyue Zu
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, P.R. China
| | - Xueting Yi
- Department of Ultrasound, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215008, P.R. China
| | - Dewei Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, P.R. China
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72
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Pirosa A, Gottardi R, Alexander PG, Tuan RS. Engineering in-vitro stem cell-based vascularized bone models for drug screening and predictive toxicology. Stem Cell Res Ther 2018; 9:112. [PMID: 29678192 PMCID: PMC5910611 DOI: 10.1186/s13287-018-0847-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The production of veritable in-vitro models of bone tissue is essential to understand the biology of bone and its surrounding environment, to analyze the pathogenesis of bone diseases (e.g., osteoporosis, osteoarthritis, osteomyelitis, etc.), to develop effective therapeutic drug screening, and to test potential therapeutic strategies. Dysregulated interactions between vasculature and bone cells are often related to the aforementioned pathologies, underscoring the need for a bone model that contains engineered vasculature. Due to ethical restraints and limited prediction power of animal models, human stem cell-based tissue engineering has gained increasing relevance as a candidate approach to overcome the limitations of animals and to serve as preclinical models for drug testing. Since bone is a highly vascularized tissue, the concomitant development of vasculature and mineralized matrix requires a synergistic interaction between osteogenic and endothelial precursors. A number of experimental approaches have been used to achieve this goal, such as the combination of angiogenic factors and three-dimensional scaffolds, prevascularization strategies, and coculture systems. In this review, we present an overview of the current models and approaches to generate in-vitro stem cell-based vascularized bone, with emphasis on the main challenges of vasculature engineering. These challenges are related to the choice of biomaterials, scaffold fabrication techniques, and cells, as well as the type of culturing conditions required, and specifically the application of dynamic culture systems using bioreactors.
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Affiliation(s)
- Alessandro Pirosa
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
| | - Riccardo Gottardi
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
- Ri.MED Foundation, Via Bandiera 11, Palermo, 90133 Italy
| | - Peter G. Alexander
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
| | - Rocky S. Tuan
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Pittsburgh, PA 15219 USA
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73
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Liu Z, Tang M, Zhao J, Chai R, Kang J. Looking into the Future: Toward Advanced 3D Biomaterials for Stem-Cell-Based Regenerative Medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705388. [PMID: 29450919 DOI: 10.1002/adma.201705388] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/26/2017] [Indexed: 05/23/2023]
Abstract
Stem-cell-based therapies have the potential to provide novel solutions for the treatment of a variety of diseases, but the main obstacles to such therapies lie in the uncontrolled differentiation and functional engraftment of implanted tissues. The physicochemical microenvironment controls the self-renewal and differentiation of stem cells, and the key step in mimicking the stem cell microenvironment is to construct a more physiologically relevant 3D culture system. Material-based 3D assemblies of stem cells facilitate the cellular interactions that promote morphogenesis and tissue organization in a similar manner to that which occurs during embryogenesis. Both natural and artificial materials can be used to create 3D scaffolds, and synthetic organic and inorganic porous materials are the two main kinds of artificial materials. Nanotechnology provides new opportunities to design novel advanced materials with special physicochemical properties for 3D stem cell culture and transplantation. Herein, the advances and advantages of 3D scaffold materials, especially with respect to stem-cell-based therapies, are first outlined. Second, the stem cell biology in 3D scaffold materials is reviewed. Third, the progress and basic principles of developing 3D scaffold materials for clinical applications in tissue engineering and regenerative medicine are reviewed.
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Affiliation(s)
- Zhongmin Liu
- Department of Cardiovascular and Thoracic Surgery, Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Mingliang Tang
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing, 210096, China
- Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, 211189, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China
| | - Jinping Zhao
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Collaborative Innovation Center for Brain Science, School of Life Science and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Renjie Chai
- Key Laboratory for Developmental Genes and Human Disease, Ministry of Education, Institute of Life Sciences, Southeast University, Nanjing, 210096, China
- Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing, 211189, China
- Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China
| | - Jiuhong Kang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Health Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Collaborative Innovation Center for Brain Science, School of Life Science and Technology, Tongji University, 1239 Siping Road, Shanghai, 200092, China
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74
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Zhou X, Cui H, Nowicki M, Miao S, Lee SJ, Masood F, Harris BT, Zhang LG. Three-Dimensional-Bioprinted Dopamine-Based Matrix for Promoting Neural Regeneration. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8993-9001. [PMID: 29461046 DOI: 10.1021/acsami.7b18197] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Central nerve repair and regeneration remain challenging problems worldwide, largely because of the extremely weak inherent regenerative capacity and accompanying fibrosis of native nerves. Inadequate solutions to the unmet needs for clinical therapeutics encourage the development of novel strategies to promote nerve regeneration. Recently, 3D bioprinting techniques, as one of a set of valuable tissue engineering technologies, have shown great promise toward fabricating complex and customizable artificial tissue scaffolds. Gelatin methacrylate (GelMA) possesses excellent biocompatible and biodegradable properties because it contains many arginine-glycine-aspartic acids (RGD) and matrix metalloproteinase sequences. Dopamine (DA), as an essential neurotransmitter, has proven effective in regulating neuronal development and enhancing neurite outgrowth. In this study, GelMA-DA neural scaffolds with hierarchical structures were 3D-fabricated using our custom-designed stereolithography-based printer. DA was functionalized on GelMA to synthesize a biocompatible printable ink (GelMA-DA) for improving neural differentiation. Additionally, neural stem cells (NSCs) were employed as the primary cell source for these scaffolds because of their ability to terminally differentiate into a variety of cell types including neurons, astrocytes, and oligodendrocytes. The resultant GelMA-DA scaffolds exhibited a highly porous and interconnected 3D environment, which is favorable for supporting NSC growth. Confocal microscopy analysis of neural differentiation demonstrated that a distinct neural network was formed on the GelMA-DA scaffolds. In particular, the most significant improvements were the enhanced neuron gene expression of TUJ1 and MAP2. Overall, our results demonstrated that 3D-printed customizable GelMA-DA scaffolds have a positive role in promoting neural differentiation, which is promising for advancing nerve repair and regeneration in the future.
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Affiliation(s)
| | | | | | | | | | - Fahed Masood
- Department of Mechanical Engineering , University of Maryland , Collage Park , Maryland 20742 , United States
| | - Brent T Harris
- Department of Neurology and Pathology , Georgetown University , Washington, D.C. 20057 , United States
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A perspective on the physical, mechanical and biological specifications of bioinks and the development of functional tissues in 3D bioprinting. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.bprint.2018.02.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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76
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Rider P, Kačarević ŽP, Alkildani S, Retnasingh S, Barbeck M. Bioprinting of tissue engineering scaffolds. J Tissue Eng 2018; 9:2041731418802090. [PMID: 30305886 PMCID: PMC6176532 DOI: 10.1177/2041731418802090] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 08/31/2018] [Indexed: 12/12/2022] Open
Abstract
Bioprinting is the process of creating three-dimensional structures consisting of biomaterials, cells, and biomolecules. The current additive manufacturing techniques, inkjet-, extrusion-, and laser-based, create hydrogel structures for cellular encapsulation and support. The requirements for each technique, as well as the technical challenges of printing living cells, are discussed and compared. This review encompasses the current research of bioprinting for tissue engineering and its potential for creating tissue-mimicking structures.
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Affiliation(s)
| | - Željka Perić Kačarević
- Department of Anatomy Histology,
Embryology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine
and Health, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Said Alkildani
- Department of Biomedical Engineering,
Faculty of Applied Medical Sciences, German Jordanian University, Amman,
Jordan
| | - Sujith Retnasingh
- Institute for Environmental Toxicology,
Martin-Luther-Universität Halle-Wittenberg and Faculty of Biomedical Engineering,
Anhalt University of Applied Science, Köthen, Germany
| | - Mike Barbeck
- botiss biomaterials, Berlin,
Germany
- Department of Oral and Maxillofacial
Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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77
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He FL, Li DW, He J, Liu YY, Ahmad F, Liu YL, Deng X, Ye YJ, Yin DC. A novel layer-structured scaffold with large pore sizes suitable for 3D cell culture prepared by near-field electrospinning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 29525092 DOI: 10.1016/j.msec.2017.12.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electrospinning is a powerful method for preparing porous materials that can be applied as biomedical materials for implantation or tissue engineering or as scaffolds for 3D cell culture experiments. However, this technique is limited in practical applications because the pore size of 3D scaffolds directly prepared by conventional electrospinning is usually less than several tens of micrometres, which may not be suitable for 3D cell culture and tissue growth. To allow for satisfactory 3D cell culture and tissue engineering, the pore size of the scaffold should be controllable according to the requirement of the specific cells to be cultured. Here, we show that layer-structured scaffolds with pore sizes larger than 100μm can be obtained by stacking meshes prepared by direct-writing using the near-field electrospinning (NFES) technique. In the study, we prepared composite scaffolds made of polycaprolactone (PCL) and hydroxyapatite (HAp) via the above-mentioned method and tested the effectiveness of the novel scaffold in cell culture using mouse pre-osteoblast cells (MC3T3-E1). The pore size and the degradability of the PCL/HAp scaffolds were characterized. The results showed that the average pore size of the scaffolds was 167μm, which was controllable based on the required application; the degradation rate was controllable depending on the ratio of PCL to HAp. The biocompatibility of the scaffolds in vitro was studied, and it was found that the scaffolds showed no toxicity and that the cells could effectively attach, proliferate, and differentiate in the 3D skeleton of the scaffolds. Our studies showed that a simple modification of the preparation procedure can lead to a new way to fabricate novel layer-structured 3D scaffolds with controllable structures and pore sizes suitable for practical applications in implantation, tissue engineering and 3D cell culture.
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Affiliation(s)
- Feng-Li He
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Da-Wei Li
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Jin He
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Yang-Yang Liu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Fiaz Ahmad
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Ya-Li Liu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Xudong Deng
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Ya-Jing Ye
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - Da-Chuan Yin
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710072, PR China.
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78
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Affiliation(s)
- Matthew J Allen
- Department of Veterinary Medicine, Surgical Discovery Centre, University of Cambridge, Cambridge, United Kingdom
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79
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Narayan R, Agarwal T, Mishra D, Maji S, Mohanty S, Mukhopadhyay A, Maiti TK. Ectopic vascularized bone formation by human mesenchymal stem cell microtissues in a biocomposite scaffold. Colloids Surf B Biointerfaces 2017; 160:661-670. [DOI: 10.1016/j.colsurfb.2017.10.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 09/28/2017] [Accepted: 10/02/2017] [Indexed: 12/19/2022]
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80
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Aliabouzar M, Lee SJ, Zhou X, Zhang GL, Sarkar K. Effects of scaffold microstructure and low intensity pulsed ultrasound on chondrogenic differentiation of human mesenchymal stem cells. Biotechnol Bioeng 2017; 115:495-506. [DOI: 10.1002/bit.26480] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/24/2017] [Accepted: 08/15/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Mitra Aliabouzar
- Department of Mechanical and Aerospace Engineering; The George Washington University; Washington DC
| | - Se-jun Lee
- Department of Mechanical and Aerospace Engineering; The George Washington University; Washington DC
| | - Xuan Zhou
- Department of Mechanical and Aerospace Engineering; The George Washington University; Washington DC
| | - Grace Lijjie Zhang
- Department of Mechanical and Aerospace Engineering; The George Washington University; Washington DC
| | - Kausik Sarkar
- Department of Mechanical and Aerospace Engineering; The George Washington University; Washington DC
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81
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Heo DN, Castro NJ, Lee SJ, Noh H, Zhu W, Zhang LG. Enhanced bone tissue regeneration using a 3D printed microstructure incorporated with a hybrid nano hydrogel. NANOSCALE 2017; 9:5055-5062. [PMID: 28211933 PMCID: PMC5398931 DOI: 10.1039/c6nr09652b] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Three-dimensional (3D) functional constructs with biomimetic mechanical and chemical properties are ideal for various regenerative medicine applications. These properties of 3D fabricated constructs mainly depend on the intrinsic characteristics of the materials and fabrication method. In this respect, the current use of hydrogels for musculoskeletal tissue repair is not ideal due to the lack of suitable mechanical properties, as well as the high biomimetic requirement for success. To overcome this limitation, we developed a novel functionalized hydrogel with bioactive gold nanoparticles (GNPs), reinforcing a 3D printed microstructure via fused deposition modeling (FDM) for bone tissue regeneration. We used biodegradable thermoplastic polylactic acid (PLA) as the 3D printed microstructure in combination with photo-curable gelatin hydrogels as the encapsulation matrix for the incorporation of cyclic RGD conjugated GNPs (RGNP), and investigated their mechanical properties. In addition, human adipose-derived stem cells (ADSCs) were encapsulated within the gelatin hydrogel and examined for viability, morphology, and osteogenic differentiation in vitro. The results showed that the stiffness of the composite hydrogel on reinforcing a 3D printed microstructure can be readily modulated to simulate the stiffness of the human mandibular condyle. ADSCs encapsulated in the composite structures remained viable within the hydrogel and showed excellent spreading on the 3D printed PLA microstructure. More importantly, osteogenic differentiation with incorporated RGNPs promoted significantly higher gene expression of osteogenic specific factors. Therefore, reinforced composite hydrogels are suitable for stem cell differentiation control and bone tissue regeneration.
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Affiliation(s)
- Dong Nyoung Heo
- Department of Mechanical and Aerospace Engineering, The George Washington University, DC 20052, USA.
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82
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Cui H, Nowicki M, Fisher JP, Zhang LG. 3D Bioprinting for Organ Regeneration. Adv Healthc Mater 2017; 6:10.1002/adhm.201601118. [PMID: 27995751 PMCID: PMC5313259 DOI: 10.1002/adhm.201601118] [Citation(s) in RCA: 273] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/26/2016] [Indexed: 12/19/2022]
Abstract
Regenerative medicine holds the promise of engineering functional tissues or organs to heal or replace abnormal and necrotic tissues/organs, offering hope for filling the gap between organ shortage and transplantation needs. Three-dimensional (3D) bioprinting is evolving into an unparalleled biomanufacturing technology due to its high-integration potential for patient-specific designs, precise and rapid manufacturing capabilities with high resolution, and unprecedented versatility. It enables precise control over multiple compositions, spatial distributions, and architectural accuracy/complexity, therefore achieving effective recapitulation of microstructure, architecture, mechanical properties, and biological functions of target tissues and organs. Here we provide an overview of recent advances in 3D bioprinting technology, as well as design concepts of bioinks suitable for the bioprinting process. We focus on the applications of this technology for engineering living organs, focusing more specifically on vasculature, neural networks, the heart and liver. We conclude with current challenges and the technical perspective for further development of 3D organ bioprinting.
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Affiliation(s)
- Haitao Cui
- Department of Mechanical and Aerospace Engineering, The George Washington University, 3590 Science and Engineering Hall, 800 22nd Street NW, Washington, DC 20052, USA
| | - Margaret Nowicki
- Department of Biomedical Engineering, The George Washington University, 3590 Science and Engineering Hall, 800 22nd Street NW, Washington, DC 20052, USA
| | - John P. Fisher
- Department of Bioengineering University of Maryland 3238 Jeong H. Kim Engineering Building College Park, MD 20742, USA
| | - Lijie Grace Zhang
- Department of Medicine, The George Washington University, 3590 Science and Engineering Hall, 800 22nd Street NW, Washington, DC 20052, USA
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83
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Aliabouzar M, Zhang LG, Sarkar K. Lipid Coated Microbubbles and Low Intensity Pulsed Ultrasound Enhance Chondrogenesis of Human Mesenchymal Stem Cells in 3D Printed Scaffolds. Sci Rep 2016; 6:37728. [PMID: 27883051 PMCID: PMC5121887 DOI: 10.1038/srep37728] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 10/31/2016] [Indexed: 12/12/2022] Open
Abstract
Lipid-coated microbubbles are used to enhance ultrasound imaging and drug delivery. Here we apply these microbubbles along with low intensity pulsed ultrasound (LIPUS) for the first time to enhance proliferation and chondrogenic differentiation of human mesenchymal stem cells (hMSCs) in a 3D printed poly-(ethylene glycol)-diacrylate (PEG-DA) hydrogel scaffold. The hMSC proliferation increased up to 40% after 5 days of culture in the presence of 0.5% (v/v) microbubbles and LIPUS in contrast to 18% with LIPUS alone. We systematically varied the acoustic excitation parameters-excitation intensity, frequency and duty cycle-to find 30 mW/cm2, 1.5 MHz and 20% duty cycle to be optimal for hMSC proliferation. A 3-week chondrogenic differentiation results demonstrated that combining LIPUS with microbubbles enhanced glycosaminoglycan (GAG) production by 17% (5% with LIPUS alone), and type II collagen production by 78% (44% by LIPUS alone). Therefore, integrating LIPUS and microbubbles appears to be a promising strategy for enhanced hMSC growth and chondrogenic differentiation, which are critical components for cartilage regeneration. The results offer possibilities of novel applications of microbubbles, already clinically approved for contrast enhanced ultrasound imaging, in tissue engineering.
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Affiliation(s)
- Mitra Aliabouzar
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC, 20052, USA
| | - Lijie Grace Zhang
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC, 20052, USA
- Department of Biomedical Engineering, The George Washington University, Washington, DC, 20052, USA
- Department of Medicine, The George Washington University, Washington, DC, 20052, USA
| | - Kausik Sarkar
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC, 20052, USA
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84
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Zhou X, Zhu W, Nowicki M, Miao S, Cui H, Holmes B, Glazer RI, Zhang LG. 3D Bioprinting a Cell-Laden Bone Matrix for Breast Cancer Metastasis Study. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30017-30026. [PMID: 27766838 DOI: 10.1021/acsami.6b10673] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Metastasis is one of the deadliest consequences of breast cancer, with bone being one of the primary sites of occurrence. Insufficient 3D biomimetic models currently exist to replicate this process in vitro. In this study, we developed a biomimetic bone matrix using 3D bioprinting technology to investigate the interaction between breast cancer (BrCa) cells and bone stromal cells (fetal osteoblasts and human bone marrow mesenchymal stem cells (MSCs)). A tabletop stereolithography 3D bioprinter was employed to fabricate a series of bone matrices consisting of osteoblasts or MSCs encapsulated in gelatin methacrylate (GelMA) hydrogel with nanocrystalline hydroxyapatite (nHA). When BrCa cells were introduced into the stromal cell-laden bioprinted matrices, we found that the growth of BrCa cells was enhanced by the presence of osteoblasts or MSCs, whereas the proliferation of the osteoblasts or MSCs was inhibited by the BrCa cells. The BrCa cells co-cultured with MSCs or osteoblasts presented increased vascular endothelial growth factor (VEGF) secretion in comparison to that of monocultured BrCa cells. Additionally, the alkaline phosphatase activity of MSCs or osteoblasts was reduced after BrCa cell co-culture. These results demonstrate that the 3D bioprinted matrix, with BrCa cells and bone stromal cells, provides a suitable model with which to study the interactive effects of cells in the context of an artificial bone microenvironment and thus may serve as a valuable tool for the investigation of postmetastatic breast cancer progression in bone.
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Affiliation(s)
| | | | | | | | | | | | - Robert I Glazer
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center , Washington, D.C. 20007, United States
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