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Kuchakzadeh F, Ai J, Ebrahimi-Barough S. Tissue engineering and stem cell-based therapeutic strategies for premature ovarian insufficiency. Regen Ther 2024; 25:10-23. [PMID: 38108045 PMCID: PMC10724490 DOI: 10.1016/j.reth.2023.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 12/19/2023] Open
Abstract
Premature ovarian insufficiency (POI), also known as premature ovarian failure (POF), is a complex endocrine disease that commonly affects women under the age of 40. It is characterized by the cessation of ovarian function before the age of 40, leading to infertility and hormonal imbalances. The currently available treatment options for POI are limited and often ineffective. Tissue engineering and stem cell-based therapeutic strategies have emerged as promising approaches to restore ovarian function and improve the quality of life for women affected by POI. This review aims to provide a comprehensive overview of the types of stem cells and biomaterials used in the treatment of POI, including their biological characteristics and mechanisms of action. It explores various sources of stem cells, including embryonic stem cells, induced pluripotent stem cells, and adult stem cells, and their potential applications in regenerating ovarian tissue. Additionally, this paper discusses the development of biomaterials and scaffolds that mimic the natural ovarian microenvironment and support the growth and maturation of ovarian cells and follicles. Furthermore, the review highlights the challenges and ethical considerations associated with tissue engineering and stem cell-based therapies for POI and proposes potential solutions to address these issues. Overall, this paper aims to provide a comprehensive overview of the current state of research in tissue engineering and stem cell-based therapeutic strategies for POI and offers insights into future directions for improving treatment outcomes in this debilitating condition.
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Affiliation(s)
- Fatemeh Kuchakzadeh
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Jafar Ai
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Ebrahimi-Barough
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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2
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Santra M, Liu YC, Jhanji V, Yam GHF. Human SMILE-Derived Stromal Lenticule Scaffold for Regenerative Therapy: Review and Perspectives. Int J Mol Sci 2022; 23:ijms23147967. [PMID: 35887309 PMCID: PMC9315730 DOI: 10.3390/ijms23147967] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/10/2022] [Accepted: 07/18/2022] [Indexed: 12/13/2022] Open
Abstract
A transparent cornea is paramount for vision. Corneal opacity is one of the leading causes of blindness. Although conventional corneal transplantation has been successful in recovering patients’ vision, the outcomes are challenged by a global lack of donor tissue availability. Bioengineered corneal tissues are gaining momentum as a new source for corneal wound healing and scar management. Extracellular matrix (ECM)-scaffold-based engineering offers a new perspective on corneal regenerative medicine. Ultrathin stromal laminar tissues obtained from lenticule-based refractive correction procedures, such as SMall Incision Lenticule Extraction (SMILE), are an accessible and novel source of collagen-rich ECM scaffolds with high mechanical strength, biocompatibility, and transparency. After customization (including decellularization), these lenticules can serve as an acellular scaffold niche to repopulate cells, including stromal keratocytes and stem cells, with functional phenotypes. The intrastromal transplantation of these cell/tissue composites can regenerate native-like corneal stromal tissue and restore corneal transparency. This review highlights the current status of ECM-scaffold-based engineering with cells, along with the development of drug and growth factor delivery systems, and elucidates the potential uses of stromal lenticule scaffolds in regenerative therapeutics.
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Affiliation(s)
- Mithun Santra
- Corneal Regeneration Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.S.); (V.J.)
| | - Yu-Chi Liu
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore 169856, Singapore;
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Vishal Jhanji
- Corneal Regeneration Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.S.); (V.J.)
| | - Gary Hin-Fai Yam
- Corneal Regeneration Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.S.); (V.J.)
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore 169856, Singapore;
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Correspondence:
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3
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Choi HK, Kim CH, Lee SN, Kim TH, Oh BK. Nano-sized graphene oxide coated nanopillars on microgroove polymer arrays that enhance skeletal muscle cell differentiation. NANO CONVERGENCE 2021; 8:40. [PMID: 34862954 PMCID: PMC8643291 DOI: 10.1186/s40580-021-00291-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/22/2021] [Indexed: 05/04/2023]
Abstract
The degeneration or loss of skeletal muscles, which can be caused by traumatic injury or disease, impacts most aspects of human activity. Among various techniques reported to regenerate skeletal muscle tissue, controlling the external cellular environment has been proven effective in guiding muscle differentiation. In this study, we report a nano-sized graphene oxide (sGO)-modified nanopillars on microgroove hybrid polymer array (NMPA) that effectively controls skeletal muscle cell differentiation. sGO-coated NMPA (sG-NMPA) were first fabricated by sequential laser interference lithography and microcontact printing methods. To compensate for the low adhesion property of polydimethylsiloxane (PDMS) used in this study, graphene oxide (GO), a proven cytophilic nanomaterial, was further modified. Among various sizes of GO, sGO (< 10 nm) was found to be the most effective not only for coating the surface of the NM structure but also for enhancing the cell adhesion and spreading on the fabricated substrates. Remarkably, owing to the micro-sized line patterns that guide cellular morphology to an elongated shape and because of the presence of sGO-modified nanostructures, mouse myoblast cells (C2C12) were efficiently differentiated into skeletal muscle cells on the hybrid patterns, based on the myosin heavy chain expression levels. Therefore, the developed sGO coated polymeric hybrid pattern arrays can serve as a potential platform for rapid and highly efficient in vitro muscle cell generation.
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Affiliation(s)
- Hye Kyu Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04170, South Korea
| | - Cheol-Hwi Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Korea
| | | | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Korea.
| | - Byung-Keun Oh
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04170, South Korea.
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Mijanović O, Pylaev T, Nikitkina A, Artyukhova M, Branković A, Peshkova M, Bikmulina P, Turk B, Bolevich S, Avetisov S, Timashev P. Tissue Engineering Meets Nanotechnology: Molecular Mechanism Modulations in Cornea Regeneration. MICROMACHINES 2021; 12:mi12111336. [PMID: 34832752 PMCID: PMC8618371 DOI: 10.3390/mi12111336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/23/2021] [Accepted: 10/14/2021] [Indexed: 12/13/2022]
Abstract
Nowadays, tissue engineering is one of the most promising approaches for the regeneration of various tissues and organs, including the cornea. However, the inability of biomaterial scaffolds to successfully integrate into the environment of surrounding tissues is one of the main challenges that sufficiently limits the restoration of damaged corneal tissues. Thus, the modulation of molecular and cellular mechanisms is important and necessary for successful graft integration and long-term survival. The dynamics of molecular interactions affecting the site of injury will determine the corneal transplantation efficacy and the post-surgery clinical outcome. The interactions between biomaterial surfaces, cells and their microenvironment can regulate cell behavior and alter their physiology and signaling pathways. Nanotechnology is an advantageous tool for the current understanding, coordination, and directed regulation of molecular cell-transplant interactions on behalf of the healing of corneal wounds. Therefore, the use of various nanotechnological strategies will provide new solutions to the problem of corneal allograft rejection, by modulating and regulating host-graft interaction dynamics towards proper integration and long-term functionality of the transplant.
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Affiliation(s)
- Olja Mijanović
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- Correspondence:
| | - Timofey Pylaev
- Saratov Medical State University N.A. V.I. Razumovsky, 112 Bolshaya Kazachya St., 410012 Saratov, Russia;
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia
| | - Angelina Nikitkina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
| | - Margarita Artyukhova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
| | - Ana Branković
- Department of Forensic Engineering, University of Criminal Investigation and Police Studies, 196 Cara Dušana St., Belgrade 11000, Serbia;
| | - Maria Peshkova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Polina Bikmulina
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
| | - Boris Turk
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Sergey Bolevich
- Department of Human Pathology, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia;
| | - Sergei Avetisov
- Department of Eye Diseases, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia;
- Research Institute of Eye Diseases, 11 Rossolimo St., 119021 Moscow, Russia
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia; (A.N.); (M.A.); (M.P.); (P.B.); (B.T.); (P.T.)
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov University, 8-2 Trubetskaya St., 119991 Moscow, Russia
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia
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Affolter A, Lammert A, Kern J, Scherl C, Rotter N. Precision Medicine Gains Momentum: Novel 3D Models and Stem Cell-Based Approaches in Head and Neck Cancer. Front Cell Dev Biol 2021; 9:666515. [PMID: 34307351 PMCID: PMC8296983 DOI: 10.3389/fcell.2021.666515] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/30/2021] [Indexed: 12/12/2022] Open
Abstract
Despite the current progress in the development of new concepts of precision medicine for head and neck squamous cell carcinoma (HNSCC), in particular targeted therapies and immune checkpoint inhibition (CPI), overall survival rates have not improved during the last decades. This is, on the one hand, caused by the fact that a significant number of patients presents with late stage disease at the time of diagnosis, on the other hand HNSCC frequently develop therapeutic resistance. Distinct intratumoral and intertumoral heterogeneity is one of the strongest features in HNSCC and has hindered both the identification of specific biomarkers and the establishment of targeted therapies for this disease so far. To date, there is a paucity of reliable preclinical models, particularly those that can predict responses to immune CPI, as these models require an intact tumor microenvironment (TME). The "ideal" preclinical cancer model is supposed to take both the TME as well as tumor heterogeneity into account. Although HNSCC patients are frequently studied in clinical trials, there is a lack of reliable prognostic biomarkers allowing a better stratification of individuals who might benefit from new concepts of targeted or immunotherapeutic strategies. Emerging evidence indicates that cancer stem cells (CSCs) are highly tumorigenic. Through the process of stemness, epithelial cells acquire an invasive phenotype contributing to metastasis and recurrence. Specific markers for CSC such as CD133 and CD44 expression and ALDH activity help to identify CSC in HNSCC. For the majority of patients, allocation of treatment regimens is simply based on histological diagnosis and on tumor location and disease staging (clinical risk assessments) rather than on specific or individual tumor biology. Hence there is an urgent need for tools to stratify HNSCC patients and pave the way for personalized therapeutic options. This work reviews the current literature on novel approaches in implementing three-dimensional (3D) HNSCC in vitro and in vivo tumor models in the clinical daily routine. Stem-cell based assays will be particularly discussed. Those models are highly anticipated to serve as a preclinical prediction platform for the evaluation of stable biomarkers and for therapeutic efficacy testing.
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Affiliation(s)
- Annette Affolter
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Li J, Hu S, Zhu D, Huang K, Mei X, López de Juan Abad B, Cheng K. All Roads Lead to Rome (the Heart): Cell Retention and Outcomes From Various Delivery Routes of Cell Therapy Products to the Heart. J Am Heart Assoc 2021; 10:e020402. [PMID: 33821664 PMCID: PMC8174178 DOI: 10.1161/jaha.120.020402] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the past decades, numerous preclinical studies and several clinical trials have evidenced the feasibility of cell transplantation in treating heart diseases. Over the years, different delivery routes of cell therapy have emerged and broadened the width of the field. However, a common hurdle is shared by all current delivery routes: low cell retention. A myriad of studies confirm that cell retention plays a crucial role in the success of cell-mediated cardiac repair. It is important for any delivery route to maintain donor cells in the recipient heart for enough time to not only proliferate by themselves, but also to send paracrine signals to surrounding damaged heart cells and repair them. In this review, we first undertake an in-depth study of primary theories of cell loss, including low efficiency in cell injection, "washout" effects, and cell death, and then organize the literature from the past decade that focuses on cell transplantation to the heart using various cell delivery routes, including intracoronary injection, systemic intravenous injection, retrograde coronary venous injection, and intramyocardial injection. In addition to a recapitulation of these approaches, we also clearly evaluate their strengths and weaknesses. Furthermore, we conduct comparative research on the cell retention rate and functional outcomes of these delivery routes. Finally, we extend our discussion to state-of-the-art bioengineering techniques that enhance cell retention, as well as alternative delivery routes, such as intrapericardial delivery. A combination of these novel strategies and more accurate assessment methods will help to address the hurdle of low cell retention and boost the efficacy of cell transplantation to the heart.
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Affiliation(s)
- Junlang Li
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
| | - Shiqi Hu
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
| | - Dashuai Zhu
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
| | - Ke Huang
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
| | - Xuan Mei
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
| | - Blanca López de Juan Abad
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
| | - Ke Cheng
- Department of Molecular Biomedical SciencesNorth Carolina State UniversityRaleighNC
- Joint Department of Biomedical EngineeringNorth Carolina State University and University of North Carolina at Chapel HillRaleighNC
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7
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Park Y, Huh KM, Kang SW. Applications of Biomaterials in 3D Cell Culture and Contributions of 3D Cell Culture to Drug Development and Basic Biomedical Research. Int J Mol Sci 2021; 22:2491. [PMID: 33801273 PMCID: PMC7958286 DOI: 10.3390/ijms22052491] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/25/2021] [Accepted: 02/25/2021] [Indexed: 01/10/2023] Open
Abstract
The process of evaluating the efficacy and toxicity of drugs is important in the production of new drugs to treat diseases. Testing in humans is the most accurate method, but there are technical and ethical limitations. To overcome these limitations, various models have been developed in which responses to various external stimuli can be observed to help guide future trials. In particular, three-dimensional (3D) cell culture has a great advantage in simulating the physical and biological functions of tissues in the human body. This article reviews the biomaterials currently used to improve cellular functions in 3D culture and the contributions of 3D culture to cancer research, stem cell culture and drug and toxicity screening.
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Affiliation(s)
- Yujin Park
- Department of Polymer Science and Engineering & Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea;
- Predictive Model Research Center, Korea Institute of Toxicology, Daejeon 34114, Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering & Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea;
| | - Sun-Woong Kang
- Predictive Model Research Center, Korea Institute of Toxicology, Daejeon 34114, Korea
- Human and Environmental Toxicology Program, University of Science and Technology, Daejeon 34114, Korea
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Han D, Wang B, Cui X, He W, zhang Y, Jiang Q, Wang F, Liu Z, Shen D. ICS II protects against cardiac hypertrophy by regulating metabolic remodelling, not by inhibiting autophagy. J Cell Mol Med 2021. [PMCID: PMC7812268 DOI: 10.1111/jcmm.16175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cardiac hypertrophy is characterized by a shift in metabolic substrate utilization. Therefore, the regulation of ketone body uptake and metabolism may have beneficial effects on heart injuries that induce cardiac remodelling. In this study, we investigated whether icariside II (ICS II) protects against cardiac hypertrophy in mice and cardiomyocytes. To create cardiac hypertrophy animal and cell models, mice were subjected to transverse aortic constriction (TAC), and embryonic rat cardiomyocytes (H9C2) were stimulated with angiotensin II, a neurohumoral stressor. Both the in vivo and in vitro results suggest that ICS II treatment ameliorated pressure overload–induced cardiac hypertrophy and preserved heart function. In addition, apoptosis and oxidative stress were reduced in the presence of ICS II. Moreover, ICS II inhibited excess autophagy in TAC‐induced hearts and angiotensin II–stimulated cardiomyocytes. Mechanistically, we found that ICS II administration regulated SIRT3 expression in cardiac remodelling. SIRT3 activation increased ketone body transportation and utilization. Collectively, our data show that ICS II attenuated cardiac hypertrophy by modulating ketone body and fatty acid metabolism, and that this was likely due to the activation of the SIRT3‐AMPK pathway. ICS II treatment may provide a new therapeutic strategy for improving myocardial metabolism in cardiac hypertrophy and heart failure.
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Affiliation(s)
- Dongjian Han
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Bo Wang
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Xinyue Cui
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Weiwei He
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Yi zhang
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Qingjiao Jiang
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Fuhang Wang
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Zhiyu Liu
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Deliang Shen
- Department of Cardiology The First Affiliated Hospital of Zhengzhou University Zhengzhou China
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Zhang S, Zhu D, Mei X, Li Z, Li J, Xie M, Xie HJW, Wang S, Cheng K. Advances in biomaterials and regenerative medicine for primary ovarian insufficiency therapy. Bioact Mater 2020; 6:1957-1972. [PMID: 33426370 PMCID: PMC7773538 DOI: 10.1016/j.bioactmat.2020.12.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/24/2020] [Accepted: 12/09/2020] [Indexed: 12/21/2022] Open
Abstract
Primary ovarian insufficiency (POI) is an ovarian dysfunction that affects more than 1 % of women and is characterized by hormone imbalances that afflict women before the age of 40. The typical perimenopausal symptoms result from abnormal levels of sex hormones, especially estrogen. The most prevalent treatment is hormone replacement therapy (HRT), which can relieve symptoms and improve quality of life. However, HRT cannot restore ovarian functions, including secretion, ovulation, and fertility. Recently, as part of a developing field of regenerative medicine, stem cell therapy has been proposed for the treatment of POI. Thus, we recapitulate the literature focusing on the use of stem cells and biomaterials for POI treatment, and sum up the underlying mechanisms of action. A thorough understanding of the work already done can aid in the development of guidelines for future translational applications and clinical trials that aim to cure POI by using regenerative medicine and biomedical engineering strategies. This paper illustrates the in-vivo, in-vitro, and cell-free treatments for POI using stem cells and biomaterials. We provide basic theories and suggestions for future research and clinical therapy translation. This review can help researcher to develop guidelines on stem cells treating POI.
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Affiliation(s)
- Sichen Zhang
- Department of Gynecology and Obstetrics, Beijing Hospital, National Center of Gerontology, China. No.1 DaHua Road, Dong Dan, Beijing, 100730, PR China.,Peking Union Medical College, Chinese Academy of Medical Sciences, Graduate School of Peking Union Medical College, NO.9 Dong Dan Santiao, Beijing, 100730, PR China.,Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Dashuai Zhu
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Xuan Mei
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Zhenhua Li
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Junlang Li
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Mengjie Xie
- Department of Gynecology and Obstetrics, Beijing Hospital, National Center of Gerontology, China. No.1 DaHua Road, Dong Dan, Beijing, 100730, PR China.,Peking Union Medical College, Chinese Academy of Medical Sciences, Graduate School of Peking Union Medical College, NO.9 Dong Dan Santiao, Beijing, 100730, PR China.,Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
| | - Halle Jiang Williams Xie
- Peking Union Medical College, Chinese Academy of Medical Sciences, Graduate School of Peking Union Medical College, NO.9 Dong Dan Santiao, Beijing, 100730, PR China.,Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA
| | - Shaowei Wang
- Department of Gynecology and Obstetrics, Beijing Hospital, National Center of Gerontology, China. No.1 DaHua Road, Dong Dan, Beijing, 100730, PR China.,Peking Union Medical College, Chinese Academy of Medical Sciences, Graduate School of Peking Union Medical College, NO.9 Dong Dan Santiao, Beijing, 100730, PR China
| | - Ke Cheng
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, 27607, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
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10
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Raveau S, Jordana F. Tissue Engineering and Three-Dimensional Printing in Periodontal Regeneration: A Literature Review. J Clin Med 2020; 9:jcm9124008. [PMID: 33322447 PMCID: PMC7763147 DOI: 10.3390/jcm9124008] [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] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023] Open
Abstract
The three-dimensional printing of scaffolds is an interesting alternative to the traditional techniques of periodontal regeneration. This technique uses computer assisted design and manufacturing after CT scan. After 3D modelling, individualized scaffolds are printed by extrusion, selective laser sintering, stereolithography, or powder bed inkjet printing. These scaffolds can be made of one or several materials such as natural polymers, synthetic polymers, or bioceramics. They can be monophasic or multiphasic and tend to recreate the architectural structure of the periodontal tissue. In order to enhance the bioactivity and have a higher regeneration, the scaffolds can be embedded with stem cells and/or growth factors. This new technique could enhance a complete periodontal regeneration. This review summarizes the application of 3D printed scaffolds in periodontal regeneration. The process, the materials and designs, the key advantages and prospects of 3D bioprinting are highlighted, providing new ideas for tissue regeneration.
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Affiliation(s)
- Simon Raveau
- Dental Faculty, University of Nantes, 44000 Nantes, France;
- Dentistry Department, University Health Centre, 44000 Nantes, France
| | - Fabienne Jordana
- Dental Faculty, University of Nantes, 44000 Nantes, France;
- Dentistry Department, University Health Centre, 44000 Nantes, France
- Correspondence: ; Tel.: +33-24041-2928
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11
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Mei X, Cheng K. Recent Development in Therapeutic Cardiac Patches. Front Cardiovasc Med 2020; 7:610364. [PMID: 33330673 PMCID: PMC7728668 DOI: 10.3389/fcvm.2020.610364] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/03/2020] [Indexed: 01/03/2023] Open
Abstract
For the past decades, heart diseases remain the leading cause of death worldwide. In the adult mammalian heart, damaged cardiomyocytes will be replaced by non-contractile fibrotic scar tissues due to the poor regenerative ability of heart, causing heart failure subsequently. The development of tissue engineering has launched a new medical innovation for heart regeneration. As one of the most outstanding technology, cardiac patches hold the potential to restore cardiac function clinically. Consisted of two components: therapeutic ingredients and substrate scaffolds, the fabrication of cardiac patches requires both advanced bioactive molecules and biomaterials. In this review, we will present the most state-of-the-art cardiac patches and analysis their compositional details. The therapeutic ingredients will be discussed from cell sources to bioactive molecules. In the meanwhile, the recent advances to obtain scaffold biomaterials will be highlighted, including synthetic and natural materials. Also, we have focused on the challenges and potential strategies to fabricate clinically applicable cardiac patches.
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Affiliation(s)
- Xuan Mei
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, United States
| | - Ke Cheng
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, United States
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Hu S, Li Z, Lutz H, Huang K, Su T, Cores J, Dinh PUC, Cheng K. Dermal exosomes containing miR-218-5p promote hair regeneration by regulating β-catenin signaling. SCIENCE ADVANCES 2020; 6:eaba1685. [PMID: 32832660 PMCID: PMC7439409 DOI: 10.1126/sciadv.aba1685] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 06/11/2020] [Indexed: 05/05/2023]
Abstract
The progression in the hair follicle cycle from the telogen to the anagen phase is the key to regulating hair regrowth. Dermal papilla (DP) cells support hair growth and regulate the hair cycle. However, they gradually lose key inductive properties upon culture. DP cells can partially restore their capacity to promote hair regrowth after being subjected to spheroid culture. In this study, results revealed that DP spheroids are effective at inducing the progression of the hair follicle cycle from telogen to anagen compared with just DP cell or minoxidil treatment. Because of the importance of paracrine signaling in this process, secretome and exosomes were isolated from DP cell culture, and their therapeutic efficacies were investigated. We demonstrated that miR-218-5p was notably up-regulated in DP spheroid-derived exosomes. Western blot and immunofluorescence imaging were used to demonstrate that DP spheroid-derived exosomes up-regulated β-catenin, promoting the development of hair follicles.
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Affiliation(s)
- Shiqi Hu
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, and North Carolina State University, Raleigh, NC 27606, USA
| | - Zhenhua Li
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, and North Carolina State University, Raleigh, NC 27606, USA
| | - Halle Lutz
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, and North Carolina State University, Raleigh, NC 27606, USA
| | - Ke Huang
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
| | - Teng Su
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, and North Carolina State University, Raleigh, NC 27606, USA
| | - Jhon Cores
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
| | - Phuong-Uyen Cao Dinh
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
| | - Ke Cheng
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, NC 27607, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, and North Carolina State University, Raleigh, NC 27606, USA
- Corresponding author.
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Geetha Bai R, Muthoosamy K, Manickam S, Hilal-Alnaqbi A. Graphene-based 3D scaffolds in tissue engineering: fabrication, applications, and future scope in liver tissue engineering. Int J Nanomedicine 2019; 14:5753-5783. [PMID: 31413573 PMCID: PMC6662516 DOI: 10.2147/ijn.s192779] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/22/2019] [Indexed: 12/14/2022] Open
Abstract
Tissue engineering embraces the potential of recreating and replacing defective body parts by advancements in the medical field. Being a biocompatible nanomaterial with outstanding physical, chemical, optical, and biological properties, graphene-based materials were successfully employed in creating the perfect scaffold for a range of organs, starting from the skin through to the brain. Investigations on 2D and 3D tissue culture scaffolds incorporated with graphene or its derivatives have revealed the capability of this carbon material in mimicking in vivo environment. The porous morphology, great surface area, selective permeability of gases, excellent mechanical strength, good thermal and electrical conductivity, good optical properties, and biodegradability enable graphene materials to be the best component for scaffold engineering. Along with the apt microenvironment, this material was found to be efficient in differentiating stem cells into specific cell types. Furthermore, the scope of graphene nanomaterials in liver tissue engineering as a promising biomaterial is also discussed. This review critically looks into the unlimited potential of graphene-based nanomaterials in future tissue engineering and regenerative therapy.
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Affiliation(s)
- Renu Geetha Bai
- Nanotechnology and Advanced Materials (NATAM), Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia
| | - Kasturi Muthoosamy
- Nanotechnology and Advanced Materials (NATAM), Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia
| | - Sivakumar Manickam
- Nanotechnology and Advanced Materials (NATAM), Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, 43500, Malaysia
| | - Ali Hilal-Alnaqbi
- Electromechanical Technology, Abu Dhabi Polytechnic, Abu Dhabi, United Arab Emirates
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Ichikawa T, Kondo H, Ishikawa K, Tsutsumi T, Tanaka H, Sekine M, Hori M. Gene Expression of Osteoblast-like Cells on Carbon-Nanowall as Scaffolds during Incubation with Electrical Stimulation. ACS APPLIED BIO MATERIALS 2019; 2:2698-2702. [DOI: 10.1021/acsabm.9b00178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Hiroki Kondo
- Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan
| | - Kenji Ishikawa
- Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan
| | | | - Hiromasa Tanaka
- Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan
| | - Makoto Sekine
- Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan
| | - Masaru Hori
- Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, Japan
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Srikanth M, Asmatulu R, Cluff K, Yao L. Material Characterization and Bioanalysis of Hybrid Scaffolds of Carbon Nanomaterial and Polymer Nanofibers. ACS OMEGA 2019; 4:5044-5051. [PMID: 30949614 PMCID: PMC6441941 DOI: 10.1021/acsomega.9b00197] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
The interconnected porous structures that mimic the extracellular matrix support cell growth in tissue engineering. Nanofibers generated by electrospinning can act as a vehicle for therapeutic cell delivery to a neural lesion. The incorporation of carbon nanomaterials with excellent electrical conductivity in nanofibers is an attractive aspect for design of a nanodevice for neural tissue regeneration. In this study, nanoscaffolds were created by electrospinning poly(ε-caprolactone) (PCL) and three different types of carbon nanomaterials, which are carbon nanotubes, graphene, and fullerene. The component of carbon nanomaterials in nanofibers was confirmed by Fourier transform infrared spectroscopy. The fiber diameter was determined by scanning electron microscopy, and it was found that the diameter varied depending on the type of nanomaterial in the fibers. The incorporation of carbon nanotubes and graphene in the PCL fibers increased the contact angle significantly, while the incorporation of fullerene reduced the contact angle significantly. Incorporation of CNT, fullerene, and graphene in the PCL fibers increased dielectric constant. Astrocytes isolated from neonatal rats were cultured on PCL-nanomaterial nanofibers. The cell viability assay showed that the PCL-nanomaterial nanofibers were not toxic to the cultured astrocytes. The immunolabeling showed the growth and morphology of astrocytes on nanofiber scaffolds. SEM was performed to determine the cell attachment and interaction with the nanoscaffolds. This study indicates that PCL nanofibers containing nanomaterials are biocompatible and could be used for cell and drug delivery into the nervous system.
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Affiliation(s)
- Madhulika Srikanth
- Department
of Mechanical Engineering, Wichita State
University, 1845 Fairmount Street, Wichita, Kansas 67260-0133, United States
| | - Ramazan Asmatulu
- Department
of Mechanical Engineering, Wichita State
University, 1845 Fairmount Street, Wichita, Kansas 67260-0133, United States
| | - Kim Cluff
- Department
of Biomedical Engineering, Wichita State
University, 1845 Fairmount Street, Wichita, Kansas 67260-0066, United States
| | - Li Yao
- Department
of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, Kansas 67260-0026, United States
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Barillé R, Codron P, Mabilleau G, Manero F, Mallet R, Zielinska S, Ortyl E, Eyer J, Letournel F. Characterization of Cells Interactions with Patterned Azopolymer-Based Materials using SEM, AFM and Video Microscopy. Open Biomed Eng J 2018. [DOI: 10.2174/1874120701812010092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction:Artificial Extracellular Matrices (ECMs) are promising tools for the study of cell behaviors.Methods:Here, we report a protocol for the use of a reconfigurable biocompatible azopolymer thin film through a photoinduced reconfigurable structuration of its surface to study nerve growth, differentiation and cell guidance.Results & Discussion:We show that this protocol combined with a spontaneous self-photoinduced polymer is suitable for time-lapse fluorescence video microscopy and can be easily adapted to electron microscopy techniques (SEM) and near-field imaging techniques (AFM).
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17
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Wen J, Yao J, Chen X, Shao Z. Silk Fibroin Acts as a Self-Emulsifier to Prepare Hierarchically Porous Silk Fibroin Scaffolds through Emulsion-Ice Dual Templates. ACS OMEGA 2018; 3:3396-3405. [PMID: 30023868 PMCID: PMC6045383 DOI: 10.1021/acsomega.7b01874] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
Silk fibroin (SF) has shown enormous potentials in various fields; however, application of SF in emulsion technology is quite limited. Here, we use SF as a self-emulsifier to form an oil-in-water (O/W) emulsion by emulsifying 1-butanol in SF aqueous solution. This showed that SF possessed strong surface activity to stabilize the O/W emulsion without the need for any other surface-active agent until its solidification because of 1-butanol-induced conformational transition of SF to β-sheet. After freezing the preformed emulsions at -20 °C, robust three-dimensional porous SF scaffolds were prepared without the need for any further post-treatment. The evolution from the O/W emulsion to porous scaffold formation under freezing was tracked, and an emulsion-ice dual template mechanism was proposed for scaffold formation, based on which SF scaffolds with controllable hierarchically porous structures were achieved by tuning the dispersed droplet volume fraction. Furthermore, SF scaffolds with hierarchical porosity showed significantly higher bioactivity toward L929 fibroblasts than that of SF scaffolds with mono macroporosity, highlighting the great asset of this hierarchically porous SF scaffold for broad applications in tissue engineering. Therefore, the strong surface-active characteristic of SF presented here, in addition to its distinct advantages, sheds a bright light on the application of SF in the vast range of emulsion technologies, especially in cosmetic-, food-, and biomedical-related areas.
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18
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Zhuravleva M, Gilazieva Z, Grigoriev TE, Shepelev AD, Kh. Tenchurin T, Kamyshinsky R, Krasheninnikov SV, Orlov S, Caralogli G, Archipova S, Holterman MJ, Mavlikeev M, Deev RV, Chvalun SN, Macchiarini P. In vitroassessment of electrospun polyamide-6 scaffolds for esophageal tissue engineering. J Biomed Mater Res B Appl Biomater 2018; 107:253-268. [DOI: 10.1002/jbm.b.34116] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 02/08/2018] [Accepted: 02/26/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Margarita Zhuravleva
- Laboratory of Bioengineering and Regenerative Medicine (BioReM); Kazan Federal University; Kazan Russia
| | - Zarema Gilazieva
- Laboratory of Bioengineering and Regenerative Medicine (BioReM); Kazan Federal University; Kazan Russia
| | | | | | | | | | | | - Sergei Orlov
- Scientific Research Institute of Medical Primatology; Sochi Russia
| | - Gina Caralogli
- Scientific Research Institute of Medical Primatology; Sochi Russia
| | - Svetlana Archipova
- Laboratory of Bioengineering and Regenerative Medicine (BioReM); Kazan Federal University; Kazan Russia
| | | | - Mikhail Mavlikeev
- Laboratory of Bioengineering and Regenerative Medicine (BioReM); Kazan Federal University; Kazan Russia
| | - Roman V. Deev
- Human Stem Cells Institute, Moscow, Russia; Ryazan State Medical University; Ryazan Russia
| | | | - Paolo Macchiarini
- Laboratory of Bioengineering and Regenerative Medicine (BioReM); Kazan Federal University; Kazan Russia
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19
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Asthana A, White CM, Douglass M, Kisaalita WS. Evaluation of cellular adhesion and organization in different microporous polymeric scaffolds. Biotechnol Prog 2018; 34:505-514. [DOI: 10.1002/btpr.2627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 01/18/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Amish Asthana
- School of Chemical, Materials, and Biomedical Engineering, Cellular Bioengineering Laboratory, College of Engineering, Driftmier Engineering Center; University of Georgia; Athens GA 30602
| | - Charles McRae White
- School of Chemical, Materials, and Biomedical Engineering, Cellular Bioengineering Laboratory, College of Engineering, Driftmier Engineering Center; University of Georgia; Athens GA 30602
| | - Megan Douglass
- School of Chemical, Materials, and Biomedical Engineering, Cellular Bioengineering Laboratory, College of Engineering, Driftmier Engineering Center; University of Georgia; Athens GA 30602
| | - William S. Kisaalita
- School of Chemical, Materials, and Biomedical Engineering, Cellular Bioengineering Laboratory, College of Engineering, Driftmier Engineering Center; University of Georgia; Athens GA 30602
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Harrill JA. Human-Derived Neurons and Neural Progenitor Cells in High Content Imaging Applications. Methods Mol Biol 2018; 1683:305-338. [PMID: 29082500 DOI: 10.1007/978-1-4939-7357-6_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to advances in the fields of stem cell biology and cellular engineering, a variety of commercially available human-derived neurons and neural progenitor cells (NPCs) are now available for use in research applications, including small molecule efficacy or toxicity screening. The use of human-derived neural cells is anticipated to address some of the uncertainties associated with the use of nonhuman culture models or transformed cell lines derived from human tissues. Many of the human-derived neurons and NPCs currently available from commercial sources recapitulate critical process of nervous system development including NPC proliferation, neurite outgrowth, synaptogenesis, and calcium signaling, each of which can be evaluated using high content image analysis (HCA). Human-derived neurons and NPCs are also amenable to culture in multiwell plate formats and thus may be adapted for use in HCA-based screening applications. This article reviews various types of HCA-based assays that have been used in conjunction with human-derived neurons and NPC cultures. This article also highlights instances where lower throughput analysis of neurodevelopmental processes has been performed and which demonstrate a potential for adaptation to higher-throughout imaging methods. Finally, a generic protocol for evaluating neurite outgrowth in human-derived neurons using a combination of immunocytochemistry and HCA is presented. The information provided in this article is intended to serve as a resource for cell model and assay selection for those interested in evaluating neurodevelopmental processes in human-derived cells.
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Affiliation(s)
- Joshua A Harrill
- Center for Toxicology and Environmental Health, LLC, 5120 Northshore Drive, Little Rock, AR, 72118, USA.
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21
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Nowicki M, Castro NJ, Rao R, Plesniak M, Zhang LG. Integrating three-dimensional printing and nanotechnology for musculoskeletal regeneration. NANOTECHNOLOGY 2017; 28:382001. [PMID: 28762957 PMCID: PMC5612478 DOI: 10.1088/1361-6528/aa8351] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The field of tissue engineering is advancing steadily, partly due to advancements in rapid prototyping technology. Even with increasing focus, successful complex tissue regeneration of vascularized bone, cartilage and the osteochondral interface remains largely illusive. This review examines current three-dimensional printing techniques and their application towards bone, cartilage and osteochondral regeneration. The importance of, and benefit to, nanomaterial integration is also highlighted with recent published examples. Early-stage successes and challenges of recent studies are discussed, with an outlook to future research in the related areas.
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Affiliation(s)
- Margaret Nowicki
- Department of Mechanical and Aerospace Engineering, The George Washington University, 800 22nd Street, NW, Washington DC 20052, United States of America
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22
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Hoque ME. Robust formulation for the design of tissue engineering scaffolds: A comprehensive study on structural anisotropy, viscoelasticity and degradation of 3D scaffolds fabricated with customized desktop robot based rapid prototyping (DRBRP) system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 72:433-443. [DOI: 10.1016/j.msec.2016.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 09/28/2016] [Accepted: 11/07/2016] [Indexed: 10/20/2022]
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Chernonosova VS, Kvon RI, Stepanova AO, Larichev YV, Karpenko AA, Chelobanov BP, Kiseleva EV, Laktionov PP. Human serum albumin in electrospun PCL fibers: structure, release, and exposure on fiber surface. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3984] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Vera S. Chernonosova
- Meshalkin Institute of Circulation Pathology; ul. Rechkunovskaya 15 Novosibirsk 630055 Russia
- Institute of Chemical Biology and Fundamental Medicine; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 8 Novosibirsk 630090 Russia
| | - Ren I. Kvon
- Boreskov Institute of Catalysis; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 5 Novosibirsk 630090 Russia
| | - Alena O. Stepanova
- Meshalkin Institute of Circulation Pathology; ul. Rechkunovskaya 15 Novosibirsk 630055 Russia
- Institute of Chemical Biology and Fundamental Medicine; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 8 Novosibirsk 630090 Russia
| | - Yurii V. Larichev
- Boreskov Institute of Catalysis; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 5 Novosibirsk 630090 Russia
- Novosibirsk State University; ul. Pirogova 2 Novosibirsk 630090 Russia
| | - Andrey A. Karpenko
- Meshalkin Institute of Circulation Pathology; ul. Rechkunovskaya 15 Novosibirsk 630055 Russia
| | - Boris P. Chelobanov
- Institute of Chemical Biology and Fundamental Medicine; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 8 Novosibirsk 630090 Russia
| | - Elena V. Kiseleva
- Institute of Cytology and Genetics; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 10 Novosibirsk 630090 Russia
| | - Pavel P. Laktionov
- Meshalkin Institute of Circulation Pathology; ul. Rechkunovskaya 15 Novosibirsk 630055 Russia
- Institute of Chemical Biology and Fundamental Medicine; Siberian Branch, Russian Academy of Sciences; pr. Lavrentieva 8 Novosibirsk 630090 Russia
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3D-Printed Scaffolds and Biomaterials: Review of Alveolar Bone Augmentation and Periodontal Regeneration Applications. Int J Dent 2016; 2016:1239842. [PMID: 27366149 PMCID: PMC4913015 DOI: 10.1155/2016/1239842] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/17/2016] [Accepted: 05/10/2016] [Indexed: 12/23/2022] Open
Abstract
To ensure a successful dental implant therapy, the presence of adequate vertical and horizontal alveolar bone is fundamental. However, an insufficient amount of alveolar ridge in both dimensions is often encountered in dental practice due to the consequences of oral diseases and tooth loss. Although postextraction socket preservation has been adopted to lessen the need for such invasive approaches, it utilizes bone grafting materials, which have limitations that could negatively affect the quality of bone formation. To overcome the drawbacks of routinely employed grafting materials, bone graft substitutes such as 3D scaffolds have been recently investigated in the dental field. In this review, we highlight different biomaterials suitable for 3D scaffold fabrication, with a focus on “3D-printed” ones as bone graft substitutes that might be convenient for various applications related to implant therapy. We also briefly discuss their possible adoption for periodontal regeneration.
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25
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Siddiqui N, Pramanik K, Jabbari E. Osteogenic differentiation of human mesenchymal stem cells in freeze-gelled chitosan/nano β-tricalcium phosphate porous scaffolds crosslinked with genipin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 54:76-83. [PMID: 26046270 DOI: 10.1016/j.msec.2015.05.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/28/2015] [Accepted: 05/02/2015] [Indexed: 11/16/2022]
Abstract
The objective of this work was to investigate material properties and osteogenic differentiation of human mesenchymal stem cells (hMSCs) in genipin (GN) crosslinked chitosan/nano β-tricalcium phosphate (CS/nano β-TCP) scaffolds, and compare the results with tripolyphosphate (TPP) crosslinked scaffolds. Porous crosslinked CS/nano β-TCP scaffolds were produced by freeze-gelation using GN (CBG scaffold) and TPP (CBT scaffold) as crosslinkers. The prepared CBT and CBG scaffolds were characterized with respect to porosity, pore size, water content, wettability, compressive strength, mass loss, and osteogenic differentiation of hMSCs. All scaffolds displayed interconnected honeycomb-like microstructures. There was a significant difference between the average pore size, porosity, contact angle, and percent swelling of CBT and CBG scaffolds. The average pore size of CBG scaffolds was higher than CBT, the porosity of CBG was lower than CBT, the water contact angle of CBG was higher than CBT, and the percent swelling of CBG was lower than CBT. At a given crosslinker concentration, there was not a significant difference in compressive modulus and mass loss of CBG and CBT scaffolds. Metabolic activity of hMSCs seeded in CBG scaffolds was slightly higher than CBT. Furthermore, CBG scaffolds displayed slightly higher extent of mineralization after 21 days of incubation in osteogenic medium compared to CBT.
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Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA.
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Xu J, Nash RJ, Frey TK. Cellular responses to Sindbis virus infection of neural progenitors derived from human embryonic stem cells. BMC Res Notes 2014; 7:757. [PMID: 25343994 PMCID: PMC4307679 DOI: 10.1186/1756-0500-7-757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 10/10/2014] [Indexed: 11/12/2022] Open
Abstract
Background Sindbis virus (SINV) causes age-dependent encephalitis in mice, and therefore serves as a model to study viral encephalitis. SINV is used as a vector for the delivery of genes into selected neural stem cell lines; however, the toxicity and side effects of this vector have rarely been discussed. In this context, we investigated the cellular responses of human embryonic stem cell (hESCs) derived neural progenitors (hNPCs) to SINV infection by assessing susceptibility of the cells to SINV infection, analyzing the effect of infection on cell proliferation and cell death, and examining the impact of SINV infection on hNPCs markers of stemness. Findings We found that hNPCs are highly susceptible to SINV infection. Upon infection, the viruses induced apoptosis to hNPCs while not affecting the expression of cell proliferation markers. Lastly, SINV infections result in significant changes in the expression of key regulators of hNPCs’ plasticity and homeostasis. Conclusion The robust and versatile signaling, proliferation, and other cell responses of hESCs-derived hNPCs to virus infection demonstrated that it is a good model to study the pathogenesis of viral-induced neurodevelopmental and degenerative diseases. On the other hand, the toxicity of SINV to hNPCs cells cannot be ignored, and therefore extra care should be taken when using SINV as a vector to deliver genes into human stem cell lines.
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Affiliation(s)
| | | | - Teryl K Frey
- Department of Biology, Georgia State University, Atlanta, GA, USA.
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27
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Siddiqui N, Pramanik K. Development of fibrin conjugated chitosan/nano β-TCP composite scaffolds with improved cell supportive property for bone tissue regeneration. J Appl Polym Sci 2014. [DOI: 10.1002/app.41534] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nadeem Siddiqui
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela India 769008
| | - Krishna Pramanik
- Department of Biotechnology and Medical Engineering; National Institute of Technology; Rourkela India 769008
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Lou T, Wang X, Song G, Gu Z, Yang Z. Fabrication of PLLA/β-TCP nanocomposite scaffolds with hierarchical porosity for bone tissue engineering. Int J Biol Macromol 2014; 69:464-70. [PMID: 24933519 DOI: 10.1016/j.ijbiomac.2014.06.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 05/19/2014] [Accepted: 06/09/2014] [Indexed: 01/06/2023]
Abstract
Polymer and ceramic composite scaffolds play a crucial role in bone tissue engineering. In an attempt to mimic the architecture of natural extracellular matrix (ECM), poly(l-lactic acid)/β-tricalcium phosphate (PLLA/β-TCP) nanocomposite scaffolds with a hierarchical pore structure were fabricated by combining thermal induced phase separation and salt leaching techniques. The nanocomposite scaffold consisted of a nanofibrous PLLA matrix with a highly interconnected, high porosity (>93%) hierarchical pore structure with pore diameters ranging from 500nm to 300μm and a homogeneously distributed β-TCP nanoparticle phase. The nanofibrous PLLA matrix had a fiber diameter of 70-300nm. The nanocomposite scaffolds possess three levels of hierarchical structure: (1) porosity; (2) nanofibrous PLLA struts comprising the pore walls; and (3) β-TCP nanoparticle phase. The β-TCP nanoparticle phase improved the mechanical properties and bioactivity of the PLLA matrix. The nanocomposite scaffolds supported MG-63 osteoblast proliferation, penetration, and ECM deposition, indicating the potential of PLLA/β-TCP nanocomposite scaffolds with hierarchical porosity for bone tissue engineering applications.
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Affiliation(s)
- Tao Lou
- College of Chemistry, Chemical Engineering, and Environmental Science, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Xuejun Wang
- College of Chemistry, Chemical Engineering, and Environmental Science, Qingdao University, 308 Ningxia Road, Qingdao 266071, China.
| | - Guojun Song
- College of Chemistry, Chemical Engineering, and Environmental Science, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Zheng Gu
- College of Chemistry, Chemical Engineering, and Environmental Science, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Zhen Yang
- College of Chemistry, Chemical Engineering, and Environmental Science, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
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Zhou K, Thouas G, Bernard C, Forsythe JS. 3D presentation of a neurotrophic factor for the regulation of neural progenitor cells. Nanomedicine (Lond) 2014; 9:1239-51. [DOI: 10.2217/nnm.13.112] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Background: Adequate cell–scaffold interactions and neurotrophin support are essential factors for neural regeneration. Aim: To provide insight into the biofunctionalization of complex 3D scaffolds with nanoscale precision, as well as the effect of spatial distribution of brain-derived neurotrophic factor (BDNF) and its prolonged stimulation in combination with enhanced cell affinity of nanofibrous scaffolds on the survival/proliferation and neurite outgrowth. Methods & materials: We developed a versatile approach using layer-by-layer self-assembly to incorporate cell adhesion and spatial representation of neurotrophic factors into complex nanofibrous scaffolds. Results: Heparin/poly-L-lysine (PLL) polyelectrolyte multilayers (PEMs) were deposited on electrospun poly-ε-caprolatone nanofibers. Well-controlled amounts of BDNF were immobilized on the PEM-modified nanofibers. In addition, longer neurite outgrowth was observed in neural progenitor cells cultured on PLL-terminating PEM scaffolds. The immobilized BDNF on PLL-terminated PEM scaffolds resulted in significantly longer neurites and higher cell numbers (p < 0.01) compared with BDNF-free and BDNF-adsorbed PLL-terminating scaffolds. Interestingly, there was no upregulation of TrkB-FL, TrkB-T1 or GAP-43 mRNAs with immobilized BDNF in day 5 cultures. Discussion & conclusion: This work reinforces the importance of the combinatorial effects of biomaterial scaffold nanostructure and spatial presentation of neurotrophins in directing neural progenitor cell fates. Original submitted 18 January 2013; Revised submitted 3 May 2013
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Affiliation(s)
- Kun Zhou
- Department of Materials Engineering, Monash University, VIC 3800, Australia
- Australian Regenerative Medicine Institute, Monash University, VIC 3800, Australia
| | - George Thouas
- Department of Zoology, The University of Melbourne, VIC 3010, Australia
| | - Claude Bernard
- Australian Regenerative Medicine Institute, Monash University, VIC 3800, Australia
| | - John S Forsythe
- Department of Materials Engineering, Monash University, VIC 3800, Australia
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Gauthaman K, Fong CY, Venugopal JR, Biswas A, Ramakrishna S, Bongso A. Propagation and differentiation of human Wharton's jelly stem cells on three-dimensional nanofibrous scaffolds. Methods Mol Biol 2013; 1058:1-23. [PMID: 23526437 DOI: 10.1007/7651_2012_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Stem cells isolated from the Wharton's jelly of the human umbilical cord (hWJSCs) are unique compared to other stem cell types as they lie in between embryonic stem cells (ESCs) and adult mesenchymal stem cells (MSCs) on the developmental map and share stemness markers of ESCs and MSCs. Yet, they do not induce tumorigenesis and are hypoimmunogenic and proliferative and fresh cell numbers can be harvested painlessly in abundance from discarded umbilical cords. Additionally, they secrete important soluble bioactive molecules from the interleukin and cell adhesion family, hyaluronic acid, collagen, glycosoaminoglycans, and chondroitin sulfate. Many of these molecules are involved in bone, cartilage, and joint repair. It has also been shown that hWJSCs attach, proliferate, and differentiate efficiently in the stem cell niches of three-dimensional matrices, particularly nanofibrous scaffolds. Thus, tissue constructs made up of hWJSCs and biodegradable nanofibrous scaffolds will facilitate clinical translation and improved functional outcome for arthritis, bone, and cartilage diseases. When applied in vivo, the hWJSCs from the tissue construct may improve repair either by differentiating into new chondrocytes or osteocytes and/or release of important factors that favor repair through paracrine functions. The nanofibrous scaffold is expected to provide the architecture and niches for the hWJSCs to perform and will later biodegrade encouraging engraftment. This chapter provides a step-by-step protocol for the preparation of such tissue constructs involving hWJSCs and nanofibrous scaffolds. The methodology also includes the targeted in vitro differentiation of the hWJSCs to osteogenic and chondrogenic lineages when attached to the nanofibrous scaffolds.
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Affiliation(s)
- Kalamegam Gauthaman
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Zhao C, Tan A, Pastorin G, Ho HK. Nanomaterial scaffolds for stem cell proliferation and differentiation in tissue engineering. Biotechnol Adv 2012; 31:654-68. [PMID: 22902273 DOI: 10.1016/j.biotechadv.2012.08.001] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 07/31/2012] [Accepted: 08/01/2012] [Indexed: 02/08/2023]
Abstract
Tissue engineering is a clinically driven field and has emerged as a potential alternative to organ transplantation. The cornerstone of successful tissue engineering rests upon two essential elements: cells and scaffolds. Recently, it was found that stem cells have unique capabilities of self-renewal and multilineage differentiation to serve as a versatile cell source, while nanomaterials have lately emerged as promising candidates in producing scaffolds able to better mimic the nanostructure in natural extracellular matrix and to efficiently replace defective tissues. This article, therefore, reviews the key developments in tissue engineering, where the combination of stem cells and nanomaterial scaffolds has been utilized over the past several years. We consider the high potential, as well as the main issues related to the application of stem cells and nanomaterial scaffolds for a range of tissues including bone, cartilage, nerve, liver, eye etc. Promising in vitro results such as efficient attachment, proliferation and differentiation of stem cells have been compiled in a series of examples involving different nanomaterials. Furthermore, the merits of the marriage of stem cells and nanomaterial scaffolds are also demonstrated in vivo, providing early successes to support subsequent clinical investigations. This progress simultaneously drives mechanistic research into the mechanotransduction process responsible for the observations in order to optimize the process further. Current understanding is chiefly reported to involve the interaction of stem cells and the anchoring nanomaterial scaffolds by activating various signaling pathways. Substrate surface characteristics and scaffold bulk properties are also reported to influence not only short term stem cell adhesion, spreading and proliferation, but also longer term lineage differentiation, functionalization and viability. It is expected that the combination of stem cells and nanomaterials will develop into an important tool in tissue engineering for the innovative treatment of many diseases.
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Affiliation(s)
- Chunyan Zhao
- NanoCore, Engineering Block A, EA, Faculty of Engineering, National University of Singapore, 117576, Singapore
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Asthana A, Kisaalita WS. Microtissue size and hypoxia in HTS with 3D cultures. Drug Discov Today 2012; 17:810-7. [PMID: 22484546 DOI: 10.1016/j.drudis.2012.03.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 01/21/2012] [Accepted: 03/12/2012] [Indexed: 01/16/2023]
Abstract
The three microenvironmental factors that characterize 3D cultures include: first, chemical and/or biochemical composition, second, spatial and temporal dimensions, and third, force and/or substrate physical properties. Although these factors have been studied individually, their interdependence and synergistic interactions have not been well appreciated. We make this case by illustrating how microtissue size (spatial) and hypoxia (chemical) can be used in the formation of physiologically more relevant constructs (or not) for cell-based high-throughput screening (HTS) in drug discovery. We further show how transcriptomic and/or proteomic results from heterogeneously sized microtissues and scaffold architectures that deliberately control hypoxia can misrepresent and represent in vivo conditions, respectively. We offer guidance, depending on HTS objectives, for rational 3D culture platform choice for better emulation of in vivo conditions.
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Affiliation(s)
- Amish Asthana
- Cellular Bioengineering Laboratory, Driftmier Engineering Center, University of Georgia, Athens, GA 30602, United States
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Ng R, Zang R, Yang KK, Liu N, Yang ST. Three-dimensional fibrous scaffolds with microstructures and nanotextures for tissue engineering. RSC Adv 2012. [DOI: 10.1039/c2ra21085a] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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ANENE-NZELU CHUKWUEMEKA, WANG YAN, YU HANRY, LIANG LEOHWA. LIVER TISSUE MODEL FOR DRUG TOXICITY SCREENING. J MECH MED BIOL 2011. [DOI: 10.1142/s0219519411004083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Understanding the mechanisms involved in the biotransformation of new drugs and their toxicological implications is important for drug development. In this regard, a lot of effort has been put into research to recreate the liver tissue in the laboratory for the purpose of drug screening. This has also helped to minimize the use of laboratory animal and reduce incidence of post-market withdrawal of drugs. Despite the progress made so far, cell source remains a major limitation since primary human hepatocytes are scarce and the various cell alternatives do not express all the genes found in the normal liver. In terms of tissue construct, there is a current shift to 3D models since the cell–cell interactions found in the 3D configuration enhance the morphology and function of hepatocytes. Furthermore, the engineered tissue's performance can be optimized by cocultures, perfusion-based systems, and the use of scaffolds. Nanotechnology seems promising in the field of tissue engineering, as it has been proven that cell–matrix interactions at the nano level can influence greatly on the outcome of the tissue. The review explores the various cell sources, the 3D model, flow-based systems, cocultures, and nanoscaffolds use in hepatocytes in vitro drug testing
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Affiliation(s)
| | - YAN WANG
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Institute of Bioengineering and Nanotechnology, Singapore
| | - HANRY YU
- Institute of Bioengineering and Nanotechnology, Singapore
- Department of Physiology, National University of Singapore, Singapore
| | - LEO HWA LIANG
- Division of Bioengineering, National University of Singapore, Singapore
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Hoque ME, Chuan YL, Pashby I. Extrusion based rapid prototyping technique: an advanced platform for tissue engineering scaffold fabrication. Biopolymers 2011; 97:83-93. [PMID: 21830198 DOI: 10.1002/bip.21701] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 05/27/2011] [Accepted: 06/23/2011] [Indexed: 11/08/2022]
Abstract
Advances in scaffold design and fabrication technology have brought the tissue engineering field stepping into a new era. Conventional techniques used to develop scaffolds inherit limitations, such as lack of control over the pore morphology and architecture as well as reproducibility. Rapid prototyping (RP) technology, a layer-by-layer additive approach offers a unique opportunity to build complex 3D architectures overcoming those limitations that could ultimately be tailored to cater for patient-specific applications. Using RP methods, researchers have been able to customize scaffolds to mimic the biomechanical properties (in terms of structural integrity, strength, and microenvironment) of the organ or tissue to be repaired/replaced quite closely. This article provides intensive description on various extrusion based scaffold fabrication techniques and review their potential utility for TE applications. The extrusion-based technique extrudes the molten polymer as a thin filament through a nozzle onto a platform layer-by-layer and thus building 3D scaffold. The technique allows full control over pore architecture and dimension in the x- and y- planes. However, the pore height in z-direction is predetermined by the extruding nozzle diameter rather than the technique itself. This review attempts to assess the current state and future prospects of this technology.
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Affiliation(s)
- M Enamul Hoque
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Malaysia Campus, Jalan Broga, Selangor Darul Ehsan, Malaysia.
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Tay CY, Irvine SA, Boey FYC, Tan LP, Venkatraman S. Micro-/nano-engineered cellular responses for soft tissue engineering and biomedical applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1361-1378. [PMID: 21538867 DOI: 10.1002/smll.201100046] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Revised: 03/19/2011] [Indexed: 05/30/2023]
Abstract
The development of biomedical devices and reconstruction of functional ex vivo tissues often requires the need to fabricate biomimetic surfaces with features of sub-micrometer precision. This can be achieved with the advancements in micro-/nano-engineering techniques, allowing researchers to manipulate a plethora of cellular behaviors at the cell-biomaterial interface. Systematic studies conducted on these 2D engineered surfaces have unraveled numerous novel findings that can potentially be integrated as part of the design consideration for future 2D and 3D biomaterials and will no doubt greatly benefit tissue engineering. In this review, recent developments detailing the use of micro-/nano-engineering techniques to direct cellular orientation and function pertinent to soft tissue engineering will be highlighted. Particularly, this article aims to provide valuable insights into distinctive cell interactions and reactions to controlled surfaces, which can be exploited to understand the mechanisms of cell growth on micro-/nano-engineered interfaces, and to harness this knowledge to optimize the performance of 3D artificial soft tissue grafts and biomedical applications.
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Affiliation(s)
- Chor Yong Tay
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, Singapore
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