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Lee EJ, Jain M, Alimperti S. Bone Microvasculature: Stimulus for Tissue Function and Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:313-329. [PMID: 32940150 DOI: 10.1089/ten.teb.2020.0154] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bone is a highly vascularized organ, providing structural support to the body, and its development, regeneration, and remodeling depend on the microvascular homeostasis. Loss or impairment of vascular function can develop diseases, such as large bone defects, avascular necrosis, osteoporosis, osteoarthritis, and osteopetrosis. In this review, we summarize how vasculature controls bone development and homeostasis in normal and disease cases. A better understanding of this process will facilitate the development of novel disease treatments that promote bone regeneration and remodeling. Specifically, approaches based on tissue engineering components, such as stem cells and growth factors, have demonstrated the capacity to induce bone microvasculature regeneration and mineralization. This knowledge will have relevant clinical implications for the treatment of bone disorders by developing novel pharmaceutical approaches and bone grafts. Finally, the tissue engineering approaches incorporating vascular components may widely be applied to treat other organ diseases by enhancing their regeneration capacity. Impact statement Bone vasculature is imperative in the process of bone development, regeneration, and remodeling. Alterations or disruption of the bone vasculature leads to loss of bone homeostasis and the development of bone diseases. In this study, we review the role of vasculature on bone diseases and how vascular tissue engineering strategies, with a detailed emphasis on the role of stem cells and growth factors, will contribute to bone therapeutics.
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Affiliation(s)
- Eun-Jin Lee
- American Dental Association Science and Research Institute, Gaithersburg, Maryland, USA
| | - Mahim Jain
- Kennedy Krieger Institute, John Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Stella Alimperti
- American Dental Association Science and Research Institute, Gaithersburg, Maryland, USA
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2
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Pushp P, Sahoo B, Ferreira FC, Sampaio Cabral JM, Fernandes‐Platzgummer A, Gupta MK. Functional comparison of beating cardiomyocytes differentiated from umbilical cord‐derived mesenchymal/stromal stem cells and human foreskin‐derived induced pluripotent stem cells. J Biomed Mater Res A 2019; 108:496-514. [DOI: 10.1002/jbm.a.36831] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 09/16/2019] [Accepted: 09/19/2019] [Indexed: 01/26/2023]
Affiliation(s)
- Pallavi Pushp
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela Odisha India
- Department of Biotechnology Institute of Engineering and Technology, Bundelkhand University Jhansi Uttar Pradesh India
| | - Bijayalaxmi Sahoo
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela Odisha India
| | - Frederico C. Ferreira
- Department of Bioengineering, Instituto Superior Técnico iBB – Institute for Bioengineering and Biosciences, Universidade de Lisboa Lisbon Portugal
| | - Joaquim M. Sampaio Cabral
- Department of Bioengineering, Instituto Superior Técnico iBB – Institute for Bioengineering and Biosciences, Universidade de Lisboa Lisbon Portugal
| | - Ana Fernandes‐Platzgummer
- Department of Bioengineering, Instituto Superior Técnico iBB – Institute for Bioengineering and Biosciences, Universidade de Lisboa Lisbon Portugal
| | - Mukesh K. Gupta
- Department of Biotechnology and Medical Engineering National Institute of Technology Rourkela Odisha India
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Jiang ZL, Jin H, Liu ZS, Liu MY, Cao XF, Jiang YY, Bai HD, Zhang B, Li Y. Lentiviral‑mediated Shh reverses the adverse effects of high glucose on osteoblast function and promotes bone formation via Sonic hedgehog signaling. Mol Med Rep 2019; 20:3265-3275. [PMID: 31432117 PMCID: PMC6755203 DOI: 10.3892/mmr.2019.10540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 07/11/2019] [Indexed: 12/25/2022] Open
Abstract
Patients with diabetes tend to have an increased incidence of osteoporosis, which may be associated with hyperglycemia; however, the pathogenic mechanisms governing this interaction remain unknown. The present study sought to investigate whether elevated extracellular glucose levels of bone mesenchymal stem cells (BMSCs) could influence osteoblastic differentiation and whether the intracellular Sonic hedgehog (Shh) pathway could adjust the effects. Furthermore, to verify the results in vivo, a rat tooth extraction model was constructed. BMSCs were incubated in eight types of culture medium, including low glucose (LG), LG + lentivirus (Lenti), LG + Lenti-small interfering RNA (Lenti-siRNA), LG + Lenti-Shh, high glucose (HG), HG + Lenti, HG + Lenti-siRNA and HG + Lenti-Shh. The lentiviral transfection efficiency was observed using a fluorescence microscope; protein and mRNA expression was detected by western blotting and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The matrix mineralization and alkaline phosphatase (ALP) activity of BMSCs were examined by Alizarin red staining and ALP activity assays, respectively. The expression of osteogenesis-related genes in BMSCs were quantified by RT-qPCR. The alveolar ridge reduction was measured and histological sections were used to evaluate new bone formation in the tooth socket. With high concentrations of glucose, Shh expression, matrix mineralization nodules formation, ALP activity and the levels of bone morphogenic protein 4 (BMP4), bone sialoprotein (BSP) and osteopontin (OPN) expression were greatly reduced compared with LG and corresponding control groups. Whereas activated Shh signaling via Lenti-Shh could increase the number of matrix mineralization nodules, ALP activity, and the expression levels of BMP4, BSP and OPN in BMSCs. Additionally, in vivo assays demonstrated that Lenti-Shh induced additional bone formation. Collectively, the results of the present study indicated that HG inhibited the Shh pathway in osteoblasts and resulted in patterning defects during osteoblastic differentiation and bone formation, while the activation of Shh signaling could suppress these deleterious effects.
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Affiliation(s)
- Zhu-Ling Jiang
- Department of Implantology, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Han Jin
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Zhong-Shuang Liu
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Ming-Yue Liu
- Department of Dentistry, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Xiao-Fang Cao
- Department of Dentistry, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yang-Yang Jiang
- Department of Dentistry, The Affiliated Hospital, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P.R. China
| | - Hong-Dan Bai
- Feiyang Dental Clinic, Heihe, Heilongjiang 164300, P.R. China
| | - Bin Zhang
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Ying Li
- Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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Singh A, Yadav CB, Tabassum N, Bajpeyee AK, Verma V. Stem cell niche: Dynamic neighbor of stem cells. Eur J Cell Biol 2018; 98:65-73. [PMID: 30563738 DOI: 10.1016/j.ejcb.2018.12.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/09/2018] [Accepted: 12/11/2018] [Indexed: 12/19/2022] Open
Abstract
Stem cell niche is a specialized and dynamic microenvironment around the stem cells which plays a critical role in maintaining the stemness properties of stem cells. Over the years, advancement in the research activity has revealed the various important aspects of stem cell niche including cell-cell interaction, cell-extracellular matrix interaction, a large number of soluble signaling factors and various biochemical and biophysical cues (such as oxygen tension, flow, and shear and pore size). Stem cells have the potential to be a powerful tool in regenerative medicine due to their self-renewal property and immense differentiation potential. Recent progresses in in vitro culture conditions of embryonic stem cells, adult stem cells and induced pluripotent stem cells have enabled the researchers to investigate and understand the role of the microenvironment in stem cell properties. The engineered artificial stem cell niche has led to a better execution of stem cells in regenerative medicine. Here we elucidate the key components of stem cell niche and their role in niche engineering and stem cell therapeutics.
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Affiliation(s)
- Anshuman Singh
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - C B Yadav
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - N Tabassum
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - A K Bajpeyee
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - V Verma
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India.
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5
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Almubarak S, Nethercott H, Freeberg M, Beaudon C, Jha A, Jackson W, Marcucio R, Miclau T, Healy K, Bahney C. Tissue engineering strategies for promoting vascularized bone regeneration. Bone 2016; 83:197-209. [PMID: 26608518 PMCID: PMC4911893 DOI: 10.1016/j.bone.2015.11.011] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/06/2015] [Accepted: 11/17/2015] [Indexed: 02/07/2023]
Abstract
This review focuses on current tissue engineering strategies for promoting vascularized bone regeneration. We review the role of angiogenic growth factors in promoting vascularized bone regeneration and discuss the different therapeutic strategies for controlled/sustained growth factor delivery. Next, we address the therapeutic uses of stem cells in vascularized bone regeneration. Specifically, this review addresses the concept of co-culture using osteogenic and vasculogenic stem cells, and how adipose derived stem cells compare to bone marrow derived mesenchymal stem cells in the promotion of angiogenesis. We conclude this review with a discussion of a novel approach to bone regeneration through a cartilage intermediate, and discuss why it has the potential to be more effective than traditional bone grafting methods.
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Affiliation(s)
- Sarah Almubarak
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States; UCSF-UCB Masters of Translational Medicine Program, Berkeley and San Francisco, CA, United States
| | - Hubert Nethercott
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States; UCSF-UCB Masters of Translational Medicine Program, Berkeley and San Francisco, CA, United States
| | - Marie Freeberg
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States; UCSF-UCB Masters of Translational Medicine Program, Berkeley and San Francisco, CA, United States
| | - Caroline Beaudon
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States; UCSF-UCB Masters of Translational Medicine Program, Berkeley and San Francisco, CA, United States
| | - Amit Jha
- Departments of Bioengineering, and Material Science and Engineering, University of California, Berkeley (UCB), Berkeley, CA, United States
| | - Wesley Jackson
- Departments of Bioengineering, and Material Science and Engineering, University of California, Berkeley (UCB), Berkeley, CA, United States
| | - Ralph Marcucio
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States
| | - Theodore Miclau
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States
| | - Kevin Healy
- Departments of Bioengineering, and Material Science and Engineering, University of California, Berkeley (UCB), Berkeley, CA, United States
| | - Chelsea Bahney
- Department of Orthopaedic Surgery, Orthopaedic Trauma Institute, University of California, San Francisco, San Francisco, CA, United States; Departments of Bioengineering, and Material Science and Engineering, University of California, Berkeley (UCB), Berkeley, CA, United States.
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6
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Rodda AE, Meagher L, Nisbet DR, Forsythe JS. Specific control of cell–material interactions: Targeting cell receptors using ligand-functionalized polymer substrates. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2013.11.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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Jha AK, Jackson WM, Healy KE. Controlling osteogenic stem cell differentiation via soft bioinspired hydrogels. PLoS One 2014; 9:e98640. [PMID: 24937602 PMCID: PMC4060996 DOI: 10.1371/journal.pone.0098640] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Accepted: 05/05/2014] [Indexed: 11/18/2022] Open
Abstract
Osteogenic differentiation of human mesenchymal stem cells (hMSCs) is guided by various physical and biochemical factors. Among these factors, modulus (i.e., rigidiy) of the ECM has gained significant attention as a physical osteoinductive signal that can contribute to endochondral ossification of a cartilaginous skeletal template. However, MSCs also participate in intramembranous bone formation, which occurs de novo from within or on a more compliant tissue environment. To further understand the role of the matrix interactions in this process, we evaluated osteogenic differentiation of hMSCs cultured on low moduli (102, 390 or 970 Pa) poly(N-isopropylacrylamide) (p(NIPAAm)) based semi-interpenetrating networks (sIPN) modified with the integrin engaging peptide bsp-RGD(15) (0, 105 or 210 µM). Cell adhesion, proliferation, and osteogenic differentiation of hMSCs, as measured by alkaline phosphatase (ALP), runt-related transcription factor 2 (RUNX2), bone sialoprotein-2 (iBSP), and osteocalcien (OCN) protein expression, was highest on substrates with the highest modulus and peptide concentrations. However, within this range of substrate stiffness, many osteogenic cellular functions were enhanced by increasing either the modulus or the peptide density. These findings suggest that within a compliant and low modulus substrate, a high affinity adhesive ligand serves as a substitute for a rigid matrix to foster osteogenic differentiation.
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Affiliation(s)
- Amit K. Jha
- Department of Bioengineering, University of California, Berkeley, California, United States of America
| | - Wesley M. Jackson
- Department of Bioengineering, University of California, Berkeley, California, United States of America
| | - Kevin E. Healy
- Department of Bioengineering, University of California, Berkeley, California, United States of America
- Department of Materials Science and Engineering, University of California, Berkeley, California, United States of America
- * E-mail:
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8
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Joddar B, Ito Y. Artificial niche substrates for embryonic and induced pluripotent stem cell cultures. J Biotechnol 2013; 168:218-28. [DOI: 10.1016/j.jbiotec.2013.04.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 04/13/2013] [Accepted: 04/29/2013] [Indexed: 01/27/2023]
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Abstract
Within the adult organism, stem cells reside in defined anatomical microenvironments called niches. These architecturally diverse microenvironments serve to balance stem cell self-renewal and differentiation. Proper regulation of this balance is instrumental to tissue repair and homeostasis, and any imbalance can potentially lead to diseases such as cancer. Within each of these microenvironments, a myriad of chemical and physical stimuli interact in a complex (synergistic or antagonistic) manner to tightly regulate stem cell fate. The in vitro replication of these in vivo microenvironments will be necessary for the application of stem cells for disease modeling, drug discovery, and regenerative medicine purposes. However, traditional reductionist approaches have only led to the generation of cell culture methods that poorly recapitulate the in vivo microenvironment. To that end, novel engineering and systems biology approaches have allowed for the investigation of the biological and mechanical stimuli that govern stem cell fate. In this review, the application of these technologies for the dissection of stem cell microenvironments will be analyzed. Moreover, the use of these engineering approaches to construct in vitro stem cell microenvironments that precisely control stem cell fate and function will be reviewed. Finally, the emerging trend of using high-throughput, combinatorial methods for the stepwise engineering of stem cell microenvironments will be explored.
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Affiliation(s)
- David A Brafman
- Department of Cellular and Molecular Medicine, Stem Cell Program, University of California at San Diego, La Jolla, California
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10
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Dolley-Sonneville PJ, Romeo LE, Melkoumian ZK. Synthetic surface for expansion of human mesenchymal stem cells in xeno-free, chemically defined culture conditions. PLoS One 2013; 8:e70263. [PMID: 23940553 PMCID: PMC3734034 DOI: 10.1371/journal.pone.0070263] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 06/19/2013] [Indexed: 12/25/2022] Open
Abstract
Human mesenchymal stem cells (HMSCS) possess three properties of great interest for the development of cell therapies and tissue engineering: multilineage differentiation, immunomodulation, and production of trophic factors. Efficient ex vivo expansion of hMSCs is a challenging requirement for large scale production of clinical grade cells. Low-cost, robust, scalable culture methods using chemically defined materials need to be developed to address this need. This study describes the use of a xeno-free synthetic peptide acrylate surface, the Corning® Synthemax® Surface, for culture of hMSCs in serum-free, defined medium. Cell performance on the Corning Synthemax Surface was compared to cells cultured on biological extracellular matrix (ECM) coatings in xeno-free defined medium and in traditional conditions on tissue culture treated (TCT) plastic in fetal bovine serum (FBS) supplemented medium. Our results show successful maintenance of hMSCs on Corning Synthemax Surface for eight passages, with cell expansion rate comparable to cells cultured on ECM and significantly higher than for cells in TCT/FBS condition. Importantly, on the Corning Synthemax Surface, cells maintained elongated, spindle-like morphology, typical hMSC marker profile and in vitro multilineage differentiation potential. We believe the Corning Synthemax Surface, in combination with defined media, provides a complete synthetic, xeno-free, cell culture system for scalable production of hMSCs.
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Stem cells of the skin and cornea: their clinical applications in regenerative medicine. Curr Opin Organ Transplant 2013; 16:83-9. [PMID: 21150608 DOI: 10.1097/mot.0b013e32834254f1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The use of stem cells is of great interest for the treatment of various pathologies and ultimately for the restoration of organ function. Progress pointing towards future treatments of skin and corneal epithelial stem cell defects are reviewed, including the transplantation of living tissue-engineered substitutes. RECENT FINDINGS This article focuses on substitutes optimized for permanent replacement of skin and cornea. New skin substitutes for burn care are currently under development. More complex tissue-engineered skin substitutes in which stroma, adipose tissue, capillaries, and neurons are combined with the epithelium are being developed. Some dermal/epidermal substitutes have been applied to the treatment of patients. Cultured corneal epithelial cells have been characterized and more complete corneal substitutes are being designed. Long-term clinical results on the transplantation of cultured corneal stem cells for the treatment of limbal stem cell deficiency have been reported. SUMMARY Advances in tissue engineering for the development of substitutes that will benefit patients suffering from skin or corneal stem cell deficiencies are reviewed. These products are often a combination of cells, scaffolds and other factors. Key considerations in the development of corneal and skin substitutes for clinical applications are discussed.
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Abstract
Stem cells reside within most tissues throughout the lifetimes of mammalian organisms. To maintain their capacities for division and differentiation and thereby build, maintain, and regenerate organ structure and function, these cells require extensive and precise regulation, and a critical facet of this control is the local environment or niche surrounding the cell. It is well known that soluble biochemical signals play important roles within such niches, and a number of biophysical aspects of the microenvironment, including mechanical cues and spatiotemporally varying biochemical signals, have also been increasingly recognized to contribute to the repertoire of stimuli that regulate various stem cells in various tissues of both vertebrates and invertebrates. For example, biochemical factors immobilized to the extracellular matrix or the surface of neighboring cells can be spatially organized in their placement. Furthermore, the extracellular matrix provides mechanical support and regulatory information, such as its elastic modulus and interfacial topography, which modulate key aspects of stem cell behavior. Numerous examples of each of these modes of regulation indicate that biophysical aspects of the niche must be appreciated and studied in conjunction with its biochemical properties.
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Pollock JF, Ashton RS, Rode NA, Schaffer DV, Healy KE. Molecular characterization of multivalent bioconjugates by size-exclusion chromatography with multiangle laser light scattering. Bioconjug Chem 2012; 23:1794-801. [PMID: 22794081 PMCID: PMC3900495 DOI: 10.1021/bc3000595] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The degree of substitution and valency of bioconjugate reaction products are often poorly judged or require multiple time- and product-consuming chemical characterization methods. These aspects become critical when analyzing and optimizing the potency of costly polyvalent bioactive conjugates. In this study, size-exclusion chromatography with multiangle laser light scattering was paired with refractive index detection and ultraviolet spectroscopy (SEC-MALS-RI-UV) to characterize the reaction efficiency, degree of substitution, and valency of the products of conjugation of either peptides or proteins to a biopolymer scaffold, i.e., hyaluronic acid (HyA). Molecular characterization was more complete compared to estimates from a protein quantification assay, and exploitation of this method led to more accurate deduction of the molecular structures of polymer bioconjugates. Information obtained using this technique can improve macromolecular engineering design principles and help to better understand multivalent macromolecular interactions in biological systems.
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Affiliation(s)
- Jacob F. Pollock
- Department of Bioengineering, University of California at Berkeley, Berkeley, CA
- UCSF/UCB Joint Graduate Group in Bioengineering, University of California, Berkeley, CA
| | - Randolph S. Ashton
- Department of Chemical Engineering, University of California at Berkeley, Berkeley, CA 94720
| | - Nikhil A. Rode
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA
| | - David V. Schaffer
- Department of Chemical Engineering, University of California at Berkeley, Berkeley, CA 94720
- UCSF/UCB Joint Graduate Group in Bioengineering, University of California, Berkeley, CA
| | - Kevin E. Healy
- Department of Bioengineering, University of California at Berkeley, Berkeley, CA
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA
- UCSF/UCB Joint Graduate Group in Bioengineering, University of California, Berkeley, CA
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Haleem-Smith H, Argintar E, Bush C, Hampton D, Postma WF, Chen FH, Rimington T, Lamb J, Tuan RS. Biological responses of human mesenchymal stem cells to titanium wear debris particles. J Orthop Res 2012; 30:853-63. [PMID: 22083964 PMCID: PMC3319839 DOI: 10.1002/jor.22002] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Accepted: 10/10/2011] [Indexed: 02/06/2023]
Abstract
Wear debris-induced osteolysis is a major cause of orthopedic implant aseptic loosening, and various cell types, including macrophages, monocytes, osteoblasts, and osteoclasts, are involved. We recently showed that mesenchymal stem/osteoprogenitor cells (MSCs) are another target, and that endocytosis of titanium (Ti) particles causes reduced MSC proliferation and osteogenic differentiation. Here we investigated the mechanistic aspects of the endocytosis-mediated responses of MSCs to Ti particulates. Dose-dependent effects were observed on cell viability, with doses >300 Ti particles/cell resulting in drastic cell death. To maintain cell viability and analyze particle-induced effects, doses <300 particles/cell were used. Increased production of interleukin-8 (IL-8), but not IL-6, was observed in treated MSCs, while levels of TGF-β, IL-1β, and TNF-α were undetectable in treated or control cells, suggesting MSCs as a likely major producer of IL-8 in the periprosthetic zone. Disruptions in cytoskeletal and adherens junction organization were also observed in Ti particles-treated MSCs. However, neither IL-8 and IL-6 treatment nor conditioned medium from Ti particle-treated MSCs failed to affect MSC osteogenic differentiation. Among other Ti particle-induced cytokines, only GM-CSF appeared to mimic the effects of reduced cell viability and osteogenesis. Taken together, these results strongly suggest that MSCs play both responder and initiator roles in mediating the osteolytic effects of the presence of wear debris particles in periprosthetic zones.
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Affiliation(s)
- Hana Haleem-Smith
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892
| | - Evan Argintar
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007
| | - Curtis Bush
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007
| | - Daniel Hampton
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007
| | - William F. Postma
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007
| | - Faye H. Chen
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892
| | - Todd Rimington
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007
| | - Joshua Lamb
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007
| | - Rocky S. Tuan
- Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Service, Bethesda, MD 20892,Department of Orthopaedic Surgery, Georgetown University School of Medicine, Washington, DC 20007,Center for Cellular and Molecular Engineering, and Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219,Correspondence: Dr. Rocky S. Tuan, Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, 450 Technology Drive, Room 221, Pittsburgh, PA 15219, Tel: 412-648-2603, Fax: 412-624-5544,
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Ashton RS, Keung AJ, Peltier J, Schaffer DV. Progress and prospects for stem cell engineering. Annu Rev Chem Biomol Eng 2012; 2:479-502. [PMID: 22432628 DOI: 10.1146/annurev-chembioeng-061010-114105] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Stem cells offer tremendous biomedical potential owing to their abilities to self-renew and differentiate into cell types of multiple adult tissues. Researchers and engineers have increasingly developed novel discovery technologies, theoretical approaches, and cell culture systems to investigate microenvironmental cues and cellular signaling events that control stem cell fate. Many of these technologies facilitate high-throughput investigation of microenvironmental signals and the intracellular signaling networks and machinery processing those signals into cell fate decisions. As our aggregate empirical knowledge of stem cell regulation grows, theoretical modeling with systems and computational biology methods has and will continue to be important for developing our ability to analyze and extract important conceptual features of stem cell regulation from complex data. Based on this body of knowledge, stem cell engineers will continue to develop technologies that predictably control stem cell fate with the ultimate goal of being able to accurately and economically scale up these systems for clinical-grade production of stem cell therapeutics.
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Affiliation(s)
- Randolph S Ashton
- Department of Chemical Engineering, University of California, Berkeley, CA 94720, USA
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Wylie RG, Ahsan S, Aizawa Y, Maxwell KL, Morshead CM, Shoichet MS. Spatially controlled simultaneous patterning of multiple growth factors in three-dimensional hydrogels. NATURE MATERIALS 2011; 10:799-806. [PMID: 21874004 DOI: 10.1038/nmat3101] [Citation(s) in RCA: 350] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Accepted: 07/18/2011] [Indexed: 05/23/2023]
Abstract
Three-dimensional (3D) protein-patterned scaffolds provide a more biomimetic environment for cell culture than traditional two-dimensional surfaces, but simultaneous 3D protein patterning has proved difficult. We developed a method to spatially control the immobilization of different growth factors in distinct volumes in 3D hydrogels, and to specifically guide differentiation of stem/progenitor cells therein. Stem-cell differentiation factors sonic hedgehog (SHH) and ciliary neurotrophic factor (CNTF) were simultaneously immobilized using orthogonal physical binding pairs, barnase-barstar and streptavidin-biotin, respectively. Barnase and streptavidin were sequentially immobilized using two-photon chemistry for subsequent concurrent complexation with fusion proteins barstar-SHH and biotin-CNTF, resulting in bioactive 3D patterned hydrogels. The technique should be broadly applicable to the patterning of a wide range of proteins.
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Affiliation(s)
- Ryan G Wylie
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
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Lenton K, James AW, Manu A, Brugmann SA, Birker D, Nelson ER, Leucht P, Helms JA, Longaker MT. Indian hedgehog positively regulates calvarial ossification and modulates bone morphogenetic protein signaling. Genesis 2011; 49:784-96. [DOI: 10.1002/dvg.20768] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Revised: 04/26/2011] [Accepted: 04/28/2011] [Indexed: 12/17/2022]
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18
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Joddar B, Ito Y. Biological modifications of materials surfaces with proteins for regenerative medicine. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10984g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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The use of vascular endothelial growth factor functionalized agarose to guide pluripotent stem cell aggregates toward blood progenitor cells. Biomaterials 2010; 31:8262-70. [PMID: 20684984 DOI: 10.1016/j.biomaterials.2010.07.040] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Accepted: 07/07/2010] [Indexed: 12/23/2022]
Abstract
The developmental potential of pluripotent stem cells is influenced by their local cellular microenvironment. To better understand the role of vascular endothelial growth factor (VEGFA) in the embryonic cellular microenvironment, we synthesized an artificial stem cell niche wherein VEGFA was immobilized in an agarose hydrogel. Agarose was first modified with coumarin-protected thiols. Upon exposure to ultra-violet excitation, the coumarin groups were cleaved leaving reactive thiols to couple with maleimide-activated VEGFA. Mouse embryonic stem cells (ESC) aggregates were encapsulated in VEGFA immobilized agarose and cultured for 7 days as free-floating aggregates under serum-free conditions. Encapsulated aggregates were assessed for their capacity to give rise to blood progenitor cells. In the presence of bone morphogenetic protein-4 (BMP-4), cells exposed to immobilized VEGFA upregulated mesodermal markers, brachyury and VEGF receptor 2 (T+VEGFR2+) by day 4, and expressed CD34 and CD41 (CD34+CD41+) on day 7. It was found that immobilized VEGFA treatment was more efficient at inducing blood progenitors (including colony forming cells) on a per molecule basis than soluble VEGFA. This work demonstrates the use of functionalized hydrogels to guide encapsulated ESCs toward blood progenitor cells and introduces a tool capable of recapitulating aspects of the embryonic microenvironment.
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Moore NM, Lin NJ, Gallant ND, Becker ML. The use of immobilized osteogenic growth peptide on gradient substrates synthesized via click chemistry to enhance MC3T3-E1 osteoblast proliferation. Biomaterials 2010; 31:1604-11. [DOI: 10.1016/j.biomaterials.2009.11.011] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Accepted: 11/03/2009] [Indexed: 01/23/2023]
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21
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Keung AJ, Kumar S, Schaffer DV. Presentation counts: microenvironmental regulation of stem cells by biophysical and material cues. Annu Rev Cell Dev Biol 2010; 26:533-56. [PMID: 20590452 PMCID: PMC5989312 DOI: 10.1146/annurev-cellbio-100109-104042] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Stem cells reside in adult and embryonic tissues in a broad spectrum of developmental stages and lineages, and they are thus naturally exposed to diverse microenvironments or niches that modulate their hallmark behaviors of self-renewal and differentiation into one or more mature lineages. Within each such microenvironment, stem cells sense and process multiple biochemical and biophysical cues, which can exert redundant, competing, or orthogonal influences to collectively regulate cell fate and function. The proper presentation of these myriad regulatory signals is required for tissue development and homeostasis, and their improper appearance can potentially lead to disease. Whereas these complex regulatory cues can be challenging to dissect using traditional cell culture paradigms, recently developed engineered material systems offer advantages for investigating biochemical and biophysical cues, both static and dynamic, in a controlled, modular, and quantitative fashion. Advances in the development and use of such systems have helped elucidate novel regulatory mechanisms controlling stem cell behavior, particularly the importance of solid-phase mechanical and immobilized biochemical microenvironmental signals, with implications for basic stem cell biology, disease, and therapeutics.
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Affiliation(s)
- Albert J Keung
- Department of Chemical Engineering, University of California, Berkeley, California, 94720, USA
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22
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Guan CC, Yan M, Jiang XQ, Zhang P, Zhang XL, Li J, Ye DX, Zhang FQ. Sonic hedgehog alleviates the inhibitory effects of high glucose on the osteoblastic differentiation of bone marrow stromal cells. Bone 2009; 45:1146-52. [PMID: 19683085 DOI: 10.1016/j.bone.2009.08.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Revised: 08/05/2009] [Accepted: 08/05/2009] [Indexed: 11/29/2022]
Abstract
To assess the influence of high extracellular glucose levels on the osteogenic differentiation of bone marrow stromal cells (BMSCs) and to determine if Sonic hedgehog (Shh) protein can alleviate those effects. BMSCs were incubated with NG (normal glucose), NG+Shh (200 ng/ml Shh in normal glucose), NG+Shh+Gan (200 ng/ml Shh and 5 micromol/L GANT61 in normal glucose), HG (high glucose), HG+Shh (200 ng/ml Shh in high glucose), and HG+Shh+Gan (200 ng/ml Shh and 5 micromol/L GANT61 in high glucose). The expression levels of Shh signaling pathway genes Patched 1 (PTCH1) and osteogenesis-related genes were tested, which included bone morphogenetic protein 4 (BMP4), runt-related transcription factor 2 (Runx2), and osteopontin (OPN). Alkaline phosphatase (ALPase) activity and mineralized matrix formation were also investigated. Immunofluorescent staining of Gli1 was tested for Shh signaling activation. We found that recombinant Shh in normal-glucose medium could promote osteogenic differentiation of BMSCs, while inhibiting Shh signaling by GANT61 could antagonize this differentiation. Besides that high glucose impaired the Shh signaling as well as osteogenic differentiation of BMSCs, reactivation of Shh signal pathway by addition of Shh protein could mitigate the inhibition while further deactivation by Shh inhibitor GANT61 could retain their osteogenic inhibitions. The above data suggest that Shh pathway activity is involved in the HG condition mediated osteoblastic differentiation deficiency for BMSCs and that recombinant Shh could alleviate this inhibitory effect.
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Affiliation(s)
- Cheng-Chao Guan
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China; Department of Prosthodontics, the 2nd Affiliated Hospital, Harbin Medical University, Harbin 150001, China
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23
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Vinatier C, Mrugala D, Jorgensen C, Guicheux J, Noël D. Cartilage engineering: a crucial combination of cells, biomaterials and biofactors. Trends Biotechnol 2009; 27:307-14. [DOI: 10.1016/j.tibtech.2009.02.005] [Citation(s) in RCA: 353] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2008] [Revised: 02/09/2009] [Accepted: 02/12/2009] [Indexed: 12/13/2022]
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Petrie TA, Reyes CD, Burns KL, García AJ. Simple application of fibronectin-mimetic coating enhances osseointegration of titanium implants. J Cell Mol Med 2008; 13:2602-2612. [PMID: 18752639 DOI: 10.1111/j.1582-4934.2008.00476.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Integrin-mediated cell adhesion to biomolecules adsorbed onto biomedical devices regulates device integration and performance. Because of the central role of integrin-fibronectin (FN) interactions in osteoblastic function and bone formation, we evaluated the ability of FN-inspired biomolecular coatings to promote osteoblastic differentiation and implant osseointegration. Notably, these biomolecular coatings relied on physical adsorption of FN-based ligands onto biomedical-grade titanium as a simple, clinically translatable strategy to functionalize medical implants. Surfaces coated with a recombinant fragment of FN spanning the central cell binding domain enhanced osteoblastic differentiation and mineralization in bone marrow stromal cell cultures and increased implant osseointegration in a rat cortical bone model compared to passively adsorbed arginine-glycine-aspartic acid peptides, serum proteins and full-length FN. Differences in biological responses correlated with integrin binding specificity and signalling among surface coatings. This work validates a simple, clinically translatable, surface biofunctionalization strategy to enhance biomedical device integration.
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Affiliation(s)
- Timothy A Petrie
- Woodruff School of Mechanical Engineering and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Catherine D Reyes
- Woodruff School of Mechanical Engineering and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Kellie L Burns
- Woodruff School of Mechanical Engineering and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
| | - Andrés J García
- Woodruff School of Mechanical Engineering and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
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Willerth SM, Rader A, Sakiyama-Elbert SE. The effect of controlled growth factor delivery on embryonic stem cell differentiation inside fibrin scaffolds. Stem Cell Res 2008; 1:205-18. [PMID: 19383401 DOI: 10.1016/j.scr.2008.05.006] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 05/23/2008] [Accepted: 05/29/2008] [Indexed: 01/06/2023] Open
Abstract
The goal of this project was to develop 3-D biomaterial scaffolds that present cues to direct the differentiation of embryonic stem (ES) cell-derived neural progenitor cells, seeded inside the scaffolds, into mature neural phenotypes, specifically neurons and oligodendrocytes. Release studies were performed to determine the appropriate conditions for retention of neurotrophin-3 (NT-3), sonic hedgehog, and platelet-derived growth factor (PDGF) by an affinity-based delivery system incorporated into fibrin scaffolds. Embryoid bodies containing neural progenitors were formed from mouse ES cells, using a 4-/4+ retinoic acid treatment protocol, and then seeded inside fibrin scaffolds containing the drug delivery system. This delivery system was used to deliver various growth factor doses and combinations to the cells seeded inside the scaffolds. Controlled delivery of NT-3 and PDGF simultaneously increased the fraction of neural progenitors, neurons, and oligodendrocytes while decreasing the fraction of astrocytes obtained compared to control cultures seeded inside unmodified fibrin scaffolds with no growth factors present in the medium. These results demonstrate that such a strategy can be used to generate an engineered tissue for the potential treatment of spinal cord injury and could be extended to the study of differentiation in other tissues.
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Affiliation(s)
- Stephanie M Willerth
- Department of Biomedical Engineering, Washington University, St. Louis, MO 63130, USA
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26
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Ito Y. Covalently immobilized biosignal molecule materials for tissue engineering. SOFT MATTER 2007; 4:46-56. [PMID: 32907083 DOI: 10.1039/b708359a] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Immobilization of biosignal molecules including growth factors and cytokines is important for developing biologically active materials which can contribute to tissue engineering as a component. The immobilization has more meanings than only immobilization of the enzyme in a bioreactor or ligand-receptor interactions, because the immobilized biosignal molecules work on cells which have very complex structures and functions. This review discusses recent progress in immobilization of biosignal molecules, including the mechanisms and design concepts.
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Affiliation(s)
- Yoshihiro Ito
- Nano Medical Engineering Laboratory, RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, JAPAN
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Saha K, Pollock JF, Schaffer DV, Healy KE. Designing synthetic materials to control stem cell phenotype. Curr Opin Chem Biol 2007; 11:381-7. [PMID: 17669680 PMCID: PMC1993842 DOI: 10.1016/j.cbpa.2007.05.030] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2007] [Accepted: 05/31/2007] [Indexed: 12/13/2022]
Abstract
The micro-environment in which stem cells reside regulates their fate, and synthetic materials have recently been designed to emulate these regulatory processes for various medical applications. Ligands inspired by the natural extracellular matrix, cell-cell contacts, and growth factors have been incorporated into synthetic materials with precisely engineered density and presentation. Furthermore, material architecture and mechanical properties are material design parameters that provide a context for receptor-ligand interactions and thereby contribute to fate determination of uncommitted stem cells. Although significant progress has been made in biomaterials development for cellular control, the design of more sophisticated and robust synthetic materials can address future challenges in achieving spatiotemporal control of cellular phenotype and in implementing histocompatible clinical therapies.
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Affiliation(s)
- Krishanu Saha
- Department of Chemical Engineering, University of California at Berkeley, Berkeley, California
| | - Jacob F. Pollock
- Department of Bioengineering, University of California at Berkeley, Berkeley, California
- UCSF and UCB Joint Graduate Group in Bioengineering, University of California at Berkeley, Berkeley, California
| | - David V. Schaffer
- Department of Chemical Engineering, University of California at Berkeley, Berkeley, California
- The Helen Wills Neuroscience Institute, University of California at Berkeley, Berkeley, California
- Correspondence should be addressed to D.V.S.: 201 Gilman Hall, Berkeley, California 94720-1462, (510) 643-5963, (510) 642-4778 (fax), , K.E.H: 370 Hearst Memorial Mining Building, #1760, Berkeley, California 94720-1760, (510) 643-3559, (510) 643-5792 (fax),
| | - Kevin E. Healy
- Department of Bioengineering, University of California at Berkeley, Berkeley, California
- UCSF and UCB Joint Graduate Group in Bioengineering, University of California at Berkeley, Berkeley, California
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, California
- Correspondence should be addressed to D.V.S.: 201 Gilman Hall, Berkeley, California 94720-1462, (510) 643-5963, (510) 642-4778 (fax), , K.E.H: 370 Hearst Memorial Mining Building, #1760, Berkeley, California 94720-1760, (510) 643-3559, (510) 643-5792 (fax),
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