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Vizely K, Wagner KT, Mandla S, Gustafson D, Fish JE, Radisic M. Angiopoietin-1 derived peptide hydrogel promotes molecular hallmarks of regeneration and wound healing in dermal fibroblasts. iScience 2023; 26:105984. [PMID: 36818306 PMCID: PMC9932487 DOI: 10.1016/j.isci.2023.105984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 10/12/2022] [Accepted: 01/11/2023] [Indexed: 01/15/2023] Open
Abstract
By providing an ideal environment for healing, biomaterials can be designed to facilitate and encourage wound regeneration. As the wound healing process is complex, there needs to be consideration for the cell types playing major roles, such as fibroblasts. As a major cell type in the dermis, fibroblasts have a large impact on the processes and outcomes of wound healing. Prevopisly, conjugating the angiopoietin-1 derived Q-peptide (QHREDGS) to a collagen-chitosan hydrogel created a biomaterial with in vivo success in accelerating wound healing. This study utilized solvent cast Q-peptide conjugated collagen-chitosan seeded with fibroblast monolayers to investigate the direct impact of the material on this major cell type. After 24 h, fibroblasts had a significant change in release of anti-inflammatory, pro-healing, and ECM deposition cytokines, with demonstrated immunomodulatory effects on macrophages and upregulated expression of critical wound healing genes.
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Affiliation(s)
- Katrina Vizely
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada
| | - Karl T. Wagner
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
| | - Serena Mandla
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
| | - Dakota Gustafson
- Toronto General Hospital Research Institute, University Health Network, Toronto,ON M5G 2C4, Canada,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jason E. Fish
- Toronto General Hospital Research Institute, University Health Network, Toronto,ON M5G 2C4, Canada,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Milica Radisic
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada,Toronto General Hospital Research Institute, University Health Network, Toronto,ON M5G 2C4, Canada,Corresponding author
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2
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Sparks HD, Mandla S, Vizely K, Rosin N, Radisic M, Biernaskie J. Application of an instructive hydrogel accelerates re-epithelialization of xenografted human skin wounds. Sci Rep 2022; 12:14233. [PMID: 35987767 PMCID: PMC9392759 DOI: 10.1038/s41598-022-18204-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/08/2022] [Indexed: 11/27/2022] Open
Abstract
Poor quality (eg. excessive scarring) or delayed closure of skin wounds can have profound physical and pyschosocial effects on patients as well as pose an enormous economic burden on the healthcare system. An effective means of improving both the rate and quality of wound healing is needed for all patients suffering from skin injury. Despite wound care being a multi-billion-dollar industry, effective treatments aimed at rapidly restoring the skin barrier function or mitigating the severity of fibrotic scar remain elusive. Previously, a hydrogel conjugated angiopoietin-1 derived peptide (QHREDGS; Q-peptide) was shown to increase keratinocyte migration and improve wound healing in diabetic mice. Here, we evaluated the effect of this Q-Peptide Hydrogel on human skin wound healing using a mouse xenograft model. First, we confirmed that the Q-Peptide Hydrogel promoted the migration of adult human keratinocytes and modulated their cytokine profile in vitro. Next, utilizing our human to mouse split-thickness skin xenograft model, we found improved healing of wounded human epidermis following Q-Peptide Hydrogel treatment. Importantly, Q-Peptide Hydrogel treatment enhanced this wound re-epithelialization via increased keratinocyte migration and survival, rather than a sustained increase in proliferation. Overall, these data provide strong evidence that topical application of QHREDGS peptide-modified hydrogels results in accelerated wound closure that may lead to improved outcomes for patients.
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3
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Gustafson D, Ngai M, Wu R, Hou H, Schoffel AC, Erice C, Mandla S, Billia F, Wilson MD, Radisic M, Fan E, Trahtemberg U, Baker A, McIntosh C, Fan CPS, Dos Santos CC, Kain KC, Hanneman K, Thavendiranathan P, Fish JE, Howe KL. Cardiovascular signatures of COVID-19 predict mortality and identify barrier stabilizing therapies. EBioMedicine 2022; 78:103982. [PMID: 35405523 PMCID: PMC8989492 DOI: 10.1016/j.ebiom.2022.103982] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/15/2022] [Accepted: 03/22/2022] [Indexed: 02/07/2023] Open
Abstract
Background Endothelial cell (EC) activation, endotheliitis, vascular permeability, and thrombosis have been observed in patients with severe coronavirus disease 2019 (COVID-19), indicating that the vasculature is affected during the acute stages of SARS-CoV-2 infection. It remains unknown whether circulating vascular markers are sufficient to predict clinical outcomes, are unique to COVID-19, and if vascular permeability can be therapeutically targeted. Methods Prospectively evaluating the prevalence of circulating inflammatory, cardiac, and EC activation markers as well as developing a microRNA atlas in 241 unvaccinated patients with suspected SARS-CoV-2 infection allowed for prognostic value assessment using a Random Forest model machine learning approach. Subsequent ex vivo experiments assessed EC permeability responses to patient plasma and were used to uncover modulated gene regulatory networks from which rational therapeutic design was inferred. Findings Multiple inflammatory and EC activation biomarkers were associated with mortality in COVID-19 patients and in severity-matched SARS-CoV-2-negative patients, while dysregulation of specific microRNAs at presentation was specific for poor COVID-19-related outcomes and revealed disease-relevant pathways. Integrating the datasets using a machine learning approach further enhanced clinical risk prediction for in-hospital mortality. Exposure of ECs to COVID-19 patient plasma resulted in severity-specific gene expression responses and EC barrier dysfunction, which was ameliorated using angiopoietin-1 mimetic or recombinant Slit2-N. Interpretation Integration of multi-omics data identified microRNA and vascular biomarkers prognostic of in-hospital mortality in COVID-19 patients and revealed that vascular stabilizing therapies should be explored as a treatment for endothelial dysfunction in COVID-19, and other severe diseases where endothelial dysfunction has a central role in pathogenesis. Funding Information This work was directly supported by grant funding from the Ted Rogers Center for Heart Research, Toronto, Ontario, Canada and the Peter Munk Cardiac Center, Toronto, Ontario, Canada.
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Affiliation(s)
- Dakota Gustafson
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Michelle Ngai
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada
| | - Ruilin Wu
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Huayun Hou
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Canada
| | | | - Clara Erice
- Johns Hopkins School of Medicine, Baltimore, USA
| | - Serena Mandla
- Institute of Biomedical Engineering, University of Toronto, Toronto, Canada
| | - Filio Billia
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Michael D Wilson
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Milica Radisic
- Institute of Biomedical Engineering, University of Toronto, Toronto, Canada
| | - Eddy Fan
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Interdepartmental Division of Critical Care and Institute of Medical Sciences, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada
| | - Uriel Trahtemberg
- Keenan Research Center for Biomedical Research, Unity Health Toronto, Toronto, Canada; Critical Care Department, Galilee Medical Center, Nahariya, Israel
| | - Andrew Baker
- Interdepartmental Division of Critical Care and Institute of Medical Sciences, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada; Critical Care Department, Galilee Medical Center, Nahariya, Israel
| | - Chris McIntosh
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada; Joint Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Canada; Techna Institute, University Health Network, Toronto, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Canada; Vector Institute, University of Toronto, Toronto, Canada
| | - Chun-Po S Fan
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Claudia C Dos Santos
- Interdepartmental Division of Critical Care and Institute of Medical Sciences, University of Toronto, Toronto, Canada; Keenan Research Center for Biomedical Research, Unity Health Toronto, Toronto, Canada
| | - Kevin C Kain
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Kate Hanneman
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada; Joint Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Canada
| | - Paaladinesh Thavendiranathan
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada; Joint Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Canada; Ted Rogers Program in Cardiotoxicity Prevention, Toronto General Hospital, Toronto, Canada
| | - Jason E Fish
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada; Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada.
| | - Kathryn L Howe
- Toronto General Hospital Research Institute, University Health Network, Toronto, Canada; Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada; Institute of Medical Science, University of Toronto, Toronto, Canada; Division of Vascular Surgery, Department of Surgery, University of Toronto, Toronto, Canada.
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4
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Huyer LD, Mandla S, Wang Y, Campbell S, Yee B, Euler C, Lai BF, Bannerman D, Lin DSY, Montgomery M, Nemr K, Bender T, Epelman S, Mahadevan R, Radisic M. Macrophage immunomodulation through new polymers that recapitulate functional effects of itaconate as a power house of innate immunity. Adv Funct Mater 2021; 31:2003341. [PMID: 33708036 PMCID: PMC7942808 DOI: 10.1002/adfm.202003341] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Indexed: 05/12/2023]
Abstract
Itaconate (ITA) is an emerging powerhouse of innate immunity with therapeutic potential that is limited in its ability to be administered in a soluble form. We developed a library of polyester materials that incorporate ITA into polymer backbones resulting in materials with inherent immunoregulatory behavior. Harnessing hydrolytic degradation release from polyester backbones, ITA polymers resulted in the mechanism specific immunoregulatory properties on macrophage polarization in vitro. In a functional assay, the polymer-released ITA inhibited bacterial growth on acetate. Translation to an in vivo model of biomaterial associated inflammation, intraperitoneal injection of ITA polymers demonstrated a rapid resolution of inflammation in comparison to a control polymer silicone, demonstrating the value of sustained biomimetic presentation of ITA.
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Affiliation(s)
- L. Davenport Huyer
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - S. Mandla
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Y. Wang
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - S. Campbell
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - B. Yee
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - C. Euler
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - B. F. Lai
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - D. Bannerman
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - D. S. Y. Lin
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - M. Montgomery
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - K. Nemr
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - T. Bender
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - S. Epelman
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - R. Mahadevan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - M. Radisic
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
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5
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Sparks HD, Sigaeva T, Tarraf S, Mandla S, Pope H, Hee O, Di Martino ES, Biernaskie J, Radisic M, Scott WM. Biomechanics of Wound Healing in an Equine Limb Model: Effect of Location and Treatment with a Peptide-Modified Collagen-Chitosan Hydrogel. ACS Biomater Sci Eng 2020; 7:265-278. [PMID: 33342210 DOI: 10.1021/acsbiomaterials.0c01431] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The equine distal limb wound healing model, characterized by delayed re-epithelialization and a fibroproliferative response to wounding similar to that observed in humans, is a valuable tool for the study of biomaterials poised for translation into both the veterinary and human medical markets. In the current study, we developed a novel method of biaxial biomechanical testing to assess the functional outcomes of healed wounds in a modified equine model and discovered significant functional and structural differences in both unwounded and injured skin at different locations on the distal limb that must be considered when using this model in future work. Namely, the medial skin was thicker and displayed earlier collagen engagement, medial wounds experienced a greater proportion of wound contraction during closure, and proximal wounds produced significantly more exuberant granulation tissue. Using this new knowledge of the equine model of aberrant wound healing, we then investigated the effect of a peptide-modified collagen-chitosan hydrogel on wound healing. Here, we found that a single treatment with the QHREDGS (glutamine-histidine-arginine-glutamic acid-aspartic acid-glycine-serine) peptide-modified hydrogel (Q-peptide hydrogel) resulted in a higher rate of wound closure and was able to modulate the biomechanical function toward a more compliant healed tissue without observable negative effects. Thus, we conclude that the use of a Q-peptide hydrogel provides a safe and effective means of improving the rate and quality of wound healing in a large animal model.
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Affiliation(s)
- Holly D Sparks
- Department of Veterinary Clinical & Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Taisiya Sigaeva
- Department of Systems Design Engineering, Faculty of Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.,Department of Civil Engineering and Centre for Bioengineering Research and Education, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
| | - Samar Tarraf
- Biomedical Engineering Graduate Program, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
| | - Serena Mandla
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto M5S3G9, Canada.,Toronto General Research Institute, University of Toronto, Toronto M5S3G9, Canada
| | - Hannah Pope
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Olivia Hee
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Elena S Di Martino
- Department of Civil Engineering and Centre for Bioengineering Research and Education, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
| | - Jeff Biernaskie
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta T2N 4N1, Canada.,Hotchkiss Brain Institute, Calgary, Alberta T2N 4N1, Canada
| | - Milica Radisic
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto M5S3G9, Canada.,Toronto General Research Institute, University of Toronto, Toronto M5S3G9, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto M5S3G9, Canada
| | - W Michael Scott
- Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta T2N 4Z6, Canada
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6
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Affiliation(s)
- Serena Mandla
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario M5S 3G9, Canada
| | - Locke Davenport Huyer
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario M5S 3G9, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | - Yufeng Wang
- Toronto General Research Institute, University Health Network, Toronto, Ontario M5S 3G9, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | - Milica Radisic
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
- Toronto General Research Institute, University Health Network, Toronto, Ontario M5S 3G9, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3G9, Canada
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7
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Fallahi A, Mandla S, Kerr-Phillip T, Seo J, Rodrigues RO, Jodat YA, Samanipour R, Hussain MA, Lee CK, Bae H, Khademhosseini A, Travas-Sejdic J, Shin SR. Flexible and Stretchable PEDOT-Embedded Hybrid Substrates for Bioengineering and Sensory Applications. ChemNanoMat 2019; 5:729-737. [PMID: 33859923 PMCID: PMC8045745 DOI: 10.1002/cnma.201900146] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Indexed: 05/27/2023]
Abstract
Herein, we introduce a flexible, biocompatible, robust and conductive electrospun fiber mat as a substrate for flexible and stretchable electronic devices for various biomedical applications. To impart the electrospun fiber mats with electrical conductivity, poly(3,4-ethylenedioxythiophene) (PEDOT), a conductive polymer, was interpenetrated into nitrile butadiene rubber (NBR) and poly(ethylene glycol) dimethacrylate (PEGDM) crosslinked electrospun fiber mats. The mats were fabricated with tunable fiber orientation, random and aligned, and displayed elastomeric mechanical properties and high conductivity. In addition, bending the mats caused a reversible change in their resistance. The cytotoxicity studies confirmed that the elastomeric and conductive electrospun fiber mats support cardiac cell growth, and thus are adaptable to a wide range of applications, including tissue engineering, implantable sensors and wearable bioelectronics.
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Affiliation(s)
- Afsoon Fallahi
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Serena Mandla
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- S. Mandla, Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Thomas Kerr-Phillip
- Dr. T. Kerr-Phillip, Prof. J. Travas-Sejdic, Polymer Electronics Research Centre (PERC), School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, New Zealand
- Dr. T. Kerr-Phillip, Prof. J. Travas-Sejdic, The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Jungmok Seo
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Prof. J. Seo, Centre for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, 14 Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Raquel O Rodrigues
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- R. O. Rodrigues, Laboratory of Separation and Reaction Engineering, Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Yasamin A Jodat
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Y. A. Jodat, Department of Mechanical Engineering, Stevens Institute of Technology, New Jersey, USA
| | - Roya Samanipour
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Dr. R. Samanipour, School of Engineering, University of British Columbia, Okanagan, BC, Canada
| | - Mohammad Asif Hussain
- Prof. M. A. Hussain, Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
| | - Chang Kee Lee
- Dr. C. K. Lee, Korea Packaging Center, Korea Institute of Industrial Technology, Bucheon, Republic of Korea
| | - Hojae Bae
- Prof. H. Bae, Prof. A. Khademhosseini, KU Convergence Science and Technology Institute, Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Republic of Korea
| | - Ali Khademhosseini
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Prof. H. Bae, Prof. A. Khademhosseini, KU Convergence Science and Technology Institute, Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Republic of Korea
- Prof. A. Khademhosseini, Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Prof. A. Khademhosseini, Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Prof. A. Khademhosseini, California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA 90095, USA
- Prof. A. Khademhosseini, Centre for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute, University of California - Los Angeles, Los Angeles, CA 90095, USA
| | - Jadranka Travas-Sejdic
- Dr. T. Kerr-Phillip, Prof. J. Travas-Sejdic, Polymer Electronics Research Centre (PERC), School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, New Zealand
- Dr. T. Kerr-Phillip, Prof. J. Travas-Sejdic, The MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Su Ryon Shin
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02139, USA, Office: (617) 768-8320,
- Dr. A. Fallahi, S. Mandla, Prof. J. Seo, R. O. Rodrigues, Y. A. Jodat, Dr. R. Samanipour, Prof. A. Khademhosseini, Dr. S. R. Shin, Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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8
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Ahadian S, Civitarese R, Bannerman D, Mohammadi MH, Lu R, Wang E, Davenport-Huyer L, Lai B, Zhang B, Zhao Y, Mandla S, Korolj A, Radisic M. Organ-On-A-Chip Platforms: A Convergence of Advanced Materials, Cells, and Microscale Technologies. Adv Healthc Mater 2018; 7. [PMID: 30134074 DOI: 10.1002/adhm.201800734] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Mandla S, Davenport Huyer L, Radisic M. Review: Multimodal bioactive material approaches for wound healing. APL Bioeng 2018; 2:021503. [PMID: 31069297 PMCID: PMC6481710 DOI: 10.1063/1.5026773] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/28/2018] [Indexed: 01/13/2023] Open
Abstract
Wound healing is a highly complex process of tissue repair that relies on the synergistic effect of a number of different cells, cytokines, enzymes, and growth factors. A deregulation in this process can lead to the formation of a non-healing chronic ulcer. Current treatment options, such as collagen wound dressings, are unable to meet the demand set by the wound environment. Therefore, a multifaceted bioactive dressing is needed to elicit a targeted affect. Wound healing strategies seek to develop a targeted effect through the delivery of a bioactive molecule to the wound by a hydrogel or a polymeric scaffold. This review examines current biomaterial and small molecule-based approaches that seek to develop a bioactive material for targeted wound therapy and accepted wound healing models for testing material efficacy.
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Affiliation(s)
- Serena Mandla
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | | | - Milica Radisic
- Author to whom correspondence should be addressed: . Tel.: +1-416-946-5295. Fax: +1-416-978-4317
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10
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Shin SR, Migliori B, Miccoli B, Li YC, Mostafalu P, Seo J, Mandla S, Enrico A, Antona S, Sabarish R, Zheng T, Pirrami L, Zhang K, Zhang YS, Wan KT, Demarchi D, Dokmeci MR, Khademhosseini A. Electrically Driven Microengineered Bioinspired Soft Robots. Adv Mater 2018; 30:10.1002/adma.201704189. [PMID: 29323433 PMCID: PMC6082116 DOI: 10.1002/adma.201704189] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/06/2017] [Indexed: 05/22/2023]
Abstract
To create life-like movements, living muscle actuator technologies have borrowed inspiration from biomimetic concepts in developing bioinspired robots. Here, the development of a bioinspired soft robotics system, with integrated self-actuating cardiac muscles on a hierarchically structured scaffold with flexible gold microelectrodes is reported. Inspired by the movement of living organisms, a batoid-fish-shaped substrate is designed and reported, which is composed of two micropatterned hydrogel layers. The first layer is a poly(ethylene glycol) hydrogel substrate, which provides a mechanically stable structure for the robot, followed by a layer of gelatin methacryloyl embedded with carbon nanotubes, which serves as a cell culture substrate, to create the actuation component for the soft body robot. In addition, flexible Au microelectrodes are embedded into the biomimetic scaffold, which not only enhance the mechanical integrity of the device, but also increase its electrical conductivity. After culturing and maturation of cardiomyocytes on the biomimetic scaffold, they show excellent myofiber organization and provide self-actuating motions aligned with the direction of the contractile force of the cells. The Au microelectrodes placed below the cell layer further provide localized electrical stimulation and control of the beating behavior of the bioinspired soft robot.
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Affiliation(s)
- Su Ryon Shin
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Bianca Migliori
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Neuroscience, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Beatrice Miccoli
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yi-Chen Li
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Pooria Mostafalu
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jungmok Seo
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Korea
| | - Serena Mandla
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Alessandro Enrico
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Micro and Nanosystems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Silvia Antona
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ram Sabarish
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ting Zheng
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Lorenzo Pirrami
- Department of Electronics and Telecommunication, Politecnico di Torino, Torino, 10129, Italy
- Department of Electrical Engineering, Institute for Printing, University of Applied Sciences and Arts Western Switzerland, Fribourg, 1705, Switzerland
| | - Kaizhen Zhang
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Kai-Tak Wan
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Danilo Demarchi
- Department of Electronics and Telecommunication, Politecnico di Torino, Torino, 10129, Italy
| | - Mehmet R Dokmeci
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Center for Nanotechnology, King Abdulaziz University, Jeddah, 21569, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, Republic of Korea
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, USA
- California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA, USA
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11
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Ahadian S, Civitarese R, Bannerman D, Mohammadi MH, Lu R, Wang E, Davenport-Huyer L, Lai B, Zhang B, Zhao Y, Mandla S, Korolj A, Radisic M. Organ-On-A-Chip Platforms: A Convergence of Advanced Materials, Cells, and Microscale Technologies. Adv Healthc Mater 2018; 7. [PMID: 29034591 DOI: 10.1002/adhm.201700506] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/15/2017] [Indexed: 12/11/2022]
Abstract
Significant advances in biomaterials, stem cell biology, and microscale technologies have enabled the fabrication of biologically relevant tissues and organs. Such tissues and organs, referred to as organ-on-a-chip (OOC) platforms, have emerged as a powerful tool in tissue analysis and disease modeling for biological and pharmacological applications. A variety of biomaterials are used in tissue fabrication providing multiple biological, structural, and mechanical cues in the regulation of cell behavior and tissue morphogenesis. Cells derived from humans enable the fabrication of personalized OOC platforms. Microscale technologies are specifically helpful in providing physiological microenvironments for tissues and organs. In this review, biomaterials, cells, and microscale technologies are described as essential components to construct OOC platforms. The latest developments in OOC platforms (e.g., liver, skeletal muscle, cardiac, cancer, lung, skin, bone, and brain) are then discussed as functional tools in simulating human physiology and metabolism. Future perspectives and major challenges in the development of OOC platforms toward accelerating clinical studies of drug discovery are finally highlighted.
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Affiliation(s)
- Samad Ahadian
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Robert Civitarese
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Dawn Bannerman
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Mohammad Hossein Mohammadi
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Rick Lu
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Erika Wang
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Locke Davenport-Huyer
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Ben Lai
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Boyang Zhang
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Yimu Zhao
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Serena Mandla
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Anastasia Korolj
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
| | - Milica Radisic
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Toronto M5S 3G9 Ontario Canada
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Toronto M5S 3G9 Ontario Canada
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12
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Nasajpour A, Mandla S, Shree S, Mostafavi E, Sharifi R, Khalilpour A, Saghazadeh S, Hassan S, Mitchell MJ, Leijten J, Hou X, Moshaverinia A, Annabi N, Adelung R, Mishra YK, Shin SR, Tamayol A, Khademhosseini A. Nanostructured Fibrous Membranes with Rose Spike-Like Architecture. Nano Lett 2017; 17:6235-6240. [PMID: 28819978 PMCID: PMC5683165 DOI: 10.1021/acs.nanolett.7b02929] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Nanoparticles have been used for engineering composite materials to improve the intrinsic properties and/or add functionalities to pristine polymers. The majority of the studies have focused on the incorporation of spherical nanoparticles within the composite fibers. Herein, we incorporate anisotropic branched-shaped zinc oxide (ZnO) nanoparticles into fibrous scaffolds fabricated by electrospinning. The addition of the branched particles resulted in their protrusion from fibers, mimicking the architecture of a rose stem. We demonstrated that the encapsulation of different-shape particles significantly influences the physicochemical and biological activities of the resultant composite scaffolds. In particular, the branched nanoparticles induced heterogeneous crystallization of the polymeric matrix and enhance the ultimate mechanical strain and strength. Moreover, the three-dimensional (3D) nature of the branched ZnO nanoparticles enhanced adhesion properties of the composite scaffolds to the tissues. In addition, the rose stem-like constructs offered excellent antibacterial activity, while supporting the growth of eukaryote cells.
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Affiliation(s)
- Amir Nasajpour
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Serena Mandla
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Sindu Shree
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Ebrahim Mostafavi
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115-5000, United States
| | - Roholah Sharifi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Akbar Khalilpour
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Saghi Saghazadeh
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shabir Hassan
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael J. Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Chemical Engineering, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jeroen Leijten
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Drienerlolaan 5, 7522 NB Enschede, The Netherlands
| | - Xu Hou
- State Key Laboratory of Physical Chemistry of Solid Surface, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Alireza Moshaverinia
- Weintraub Center for Reconstructive Biotechnology Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, California 90095, United States
| | - Nasim Annabi
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
- Harvard−MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115-5000, United States
| | - Rainer Adelung
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Yogendra Kumar Mishra
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143 Kiel, Germany
| | - Su Ryon Shin
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, The Republic of Korea
| | - Ali Tamayol
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, Nebraska 68588, United States
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, The Republic of Korea
| | - Ali Khademhosseini
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, The Republic of Korea
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21569, Saudi Arabia
- Corresponding Authors: . Phone: (617)-768-8395. Fax: (617)-768-8477
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13
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Sadeghi AH, Shin SR, Deddens JC, Fratta G, Mandla S, Yazdi IK, Prakash G, Antona S, Demarchi D, Buijsrogge MP, Sluijter JPG, Hjortnaes J, Khademhosseini A. Tissue Engineering: Engineered 3D Cardiac Fibrotic Tissue to Study Fibrotic Remodeling (Adv. Healthcare Mater. 11/2017). Adv Healthc Mater 2017. [DOI: 10.1002/adhm.201770054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amir Hossein Sadeghi
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
- Department of Cardiology; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
- Department of Cardiothoracic Surgery; University Medical Center Utrecht; 3584 CX The Netherlands
| | - Su Ryon Shin
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
- Wyss Institute for Biologically Inspired Engineering; Harvard University; Boston MA 02115 USA
| | - Janine C. Deddens
- Department of Cardiology; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
- Netherlands Heart Institute (ICIN); 3584 CX Utrecht The Netherlands
| | - Giuseppe Fratta
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
- Department of Electronics and Telecommunications; Politecnico di Torino; 10129 Torino Italy
| | - Serena Mandla
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Iman K. Yazdi
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
- Wyss Institute for Biologically Inspired Engineering; Harvard University; Boston MA 02115 USA
| | - Gyan Prakash
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
| | - Silvia Antona
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
- Department of Electronics and Telecommunications; Politecnico di Torino; 10129 Torino Italy
| | - Danilo Demarchi
- Department of Electronics and Telecommunications; Politecnico di Torino; 10129 Torino Italy
| | - Marc P. Buijsrogge
- Department of Cardiothoracic Surgery; University Medical Center Utrecht; 3584 CX The Netherlands
| | - Joost P. G. Sluijter
- Department of Cardiology; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
- Netherlands Heart Institute (ICIN); 3584 CX Utrecht The Netherlands
- UMC Utrecht Regenerative Medicine Center; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
| | - Jesper Hjortnaes
- Department of Cardiothoracic Surgery; University Medical Center Utrecht; 3584 CX The Netherlands
- UMC Utrecht Regenerative Medicine Center; University Medical Center Utrecht; 3584 CX Utrecht The Netherlands
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center; Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; 65 Landsdowne Street Cambridge MA 02139 USA
- Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; 65 Landsdowne Street Cambridge MA 02139 USA
- Wyss Institute for Biologically Inspired Engineering; Harvard University; Boston MA 02115 USA
- Department of Physics; King Abdulaziz University; Jeddah 21569 Saudi Arabia
- Department of Bioindustrial Technologies; College of Animal Bioscience and Technology; Konkuk University; 130-701 Hwayang-dong, Kwangjin-gu Seoul Republic of Korea
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14
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Sadeghi AH, Shin SR, Deddens JC, Fratta G, Mandla S, Yazdi IK, Prakash G, Antona S, Demarchi D, Buijsrogge MP, Sluijter JPG, Hjortnaes J, Khademhosseini A. Engineered 3D Cardiac Fibrotic Tissue to Study Fibrotic Remodeling. Adv Healthc Mater 2017; 6:10.1002/adhm.201601434. [PMID: 28498548 PMCID: PMC5545804 DOI: 10.1002/adhm.201601434] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/02/2017] [Indexed: 12/19/2022]
Abstract
Activation of cardiac fibroblasts into myofibroblasts is considered to play an essential role in cardiac remodeling and fibrosis. A limiting factor in studying this process is the spontaneous activation of cardiac fibroblasts when cultured on two-dimensional (2D) culture plates. In this study, a simplified three-dimensional (3D) hydrogel platform of contractile cardiac tissue, stimulated by transforming growth factor-β1 (TGF-β1), is presented to recapitulate a fibrogenic microenvironment. It is hypothesized that the quiescent state of cardiac fibroblasts can be maintained by mimicking the mechanical stiffness of native heart tissue. To test this hypothesis, a 3D cell culture model consisting of cardiomyocytes and cardiac fibroblasts encapsulated within a mechanically engineered gelatin methacryloyl hydrogel, is developed. The study shows that cardiac fibroblasts maintain their quiescent phenotype in mechanically tuned hydrogels. Additionally, treatment with a beta-adrenergic agonist increases beating frequency, demonstrating physiologic-like behavior of the heart constructs. Subsequently, quiescent cardiac fibroblasts within the constructs are activated by the exogenous addition of TGF-β1. The expression of fibrotic protein markers (and the functional changes in mechanical stiffness) in the fibrotic-like tissues are analyzed to validate the model. Overall, this 3D engineered culture model of contractile cardiac tissue enables controlled activation of cardiac fibroblasts, demonstrating the usability of this platform to study fibrotic remodeling.
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Affiliation(s)
- Amir Hossein Sadeghi
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Department of Cardiology, University Medical Center Utrecht, 3584, CX, Utrecht, The Netherlands
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, 3584, CX, The Netherlands
| | - Su Ryon Shin
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Janine C Deddens
- Department of Cardiology, University Medical Center Utrecht, 3584, CX, Utrecht, The Netherlands
- Netherlands Heart Institute (ICIN), 3584, CX, Utrecht, The Netherlands
| | - Giuseppe Fratta
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Department of Electronics and Telecommunications, Politecnico di Torino, 10129, Torino, Italy
| | - Serena Mandla
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
| | - Iman K Yazdi
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Gyan Prakash
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
| | - Silvia Antona
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Department of Electronics and Telecommunications, Politecnico di Torino, 10129, Torino, Italy
| | - Danilo Demarchi
- Department of Electronics and Telecommunications, Politecnico di Torino, 10129, Torino, Italy
| | - Marc P Buijsrogge
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, 3584, CX, The Netherlands
| | - Joost P G Sluijter
- Department of Cardiology, University Medical Center Utrecht, 3584, CX, Utrecht, The Netherlands
- Netherlands Heart Institute (ICIN), 3584, CX, Utrecht, The Netherlands
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, 3584, CX, Utrecht, The Netherlands
| | - Jesper Hjortnaes
- Department of Cardiothoracic Surgery, University Medical Center Utrecht, 3584, CX, The Netherlands
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, 3584, CX, Utrecht, The Netherlands
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, 65 Landsdowne Street, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Physics, King Abdulaziz University, Jeddah, 21569, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, 130-701, Hwayang-dong, Kwangjin-gu, Seoul, Republic of Korea
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15
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Zhu K, Shin SR, van Kempen T, Li YC, Ponraj V, Nasajpour A, Mandla S, Hu N, Liu X, Leijten J, Lin YD, Hussain MA, Zhang YS, Tamayol A, Khademhosseini A. Gold Nanocomposite Bioink for Printing 3D Cardiac Constructs. Adv Funct Mater 2017; 27:1605352. [PMID: 30319321 PMCID: PMC6181228 DOI: 10.1002/adfm.201605352] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Bioprinting is the most convenient microfabrication method to create biomimetic three-dimensional (3D) cardiac tissue constructs, which can be used to regenerate damaged tissue and provide platforms for drug screening. However, existing bioinks, which are usually composed of polymeric biomaterials, are poorly conductive and delay efficient electrical coupling between adjacent cardiac cells. To solve this problem, we developed a gold nanorod (GNR) incorporated gelatin methacryloyl (GelMA)-based bioink for printing 3D functional cardiac tissue constructs. The GNR concentration was adjusted to create a proper microenvironment for the spreading and organization of cardiac cells. At optimized concentration of GNR, the nanocomposite bioink had a low viscosity, similar to pristine inks, which allowed for the easy integration of cells at high densities. As a result, rapid deposition of cell-laden fibers at a high resolution was possible, while reducing shear stress on the encapsulated cells. In the printed GNR constructs, cardiac cells showed improved cell adhesion and organization when compared to the constructs without GNRs. Furthermore, the incorporated GNRs bridged the electrically resistant pore walls of polymers, improved the cell-to-cell coupling, and promoted synchronized contraction of the bioprinted constructs. Given its advantageous properties, this gold nanocomposite bioink may find wide application in cardiac tissue engineering.
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Affiliation(s)
- Kai Zhu
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Su Ryon Shin
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Tim van Kempen
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yi-Chen Li
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Vidhya Ponraj
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Amir Nasajpour
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Serena Mandla
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Ning Hu
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Xiao Liu
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Jeroen Leijten
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yi-Dong Lin
- Divisions of Genetics and Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Mohammad Asif Hussain
- Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah 21569, Saudi Arabia
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Ali Tamayol
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
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16
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Tenenhouse HS, Meyer RA, Mandla S, Meyer MH, Gray RW. Renal phosphate transport and vitamin D metabolism in X-linked hypophosphatemic Gy mice: responses to phosphate deprivation. Endocrinology 1992; 131:51-6. [PMID: 1612032 DOI: 10.1210/endo.131.1.1612032] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two closely linked, nonallelic genes, Gy and Hyp, result in X-linked hypophosphatemia in mice. The present studies in Gy mice were undertaken to determine whether renal brush-border membrane Na(+)-phosphate cotransport kinetics and adaptive responses of renal phosphate transport and vitamin D metabolism to phosphate deprivation are comparable in the two mutant strains. Transport studies in purified brush-border membrane vesicles over a phosphate concentration range of 10-500 microM demonstrated that the apparent maximum velocity of the high affinity transport system is significantly decreased in Gy mice (420 +/- 110 vs. 710 +/- 100 pmol/mg protein.6 sec, Gy vs. normal; mean +/- SE; P less than 0.05), whereas the affinity of the cotransporter for phosphate is unchanged (apparent Km, 25 +/- 3 vs. 27 +/- 2 microM; NS). Feeding a low phosphate diet results in a significant fall in plasma phosphate and an increase in brush-border membrane Na(+)-phosphate cotransport in both normal (568 +/- 40 to 1416 +/- 139 pmol/mg protein.6 sec; P less than 0.01) and Gy mice (407 +/- 27 to 1236 +/- 132 pmol/mg protein.6 sec; P less than 0.01). While the low phosphate diet elicited a rise in plasma 1,25-dihydroxyvitamin D in normal mice (51 +/- 12 to 158 +/- 12 pM; P less than 0.01), a fall in plasma hormone levels was evident in phosphate-deprived Gy mice (90 +/- 22 to 23 +/- 11 pM; P less than 0.01). Phosphate deprivation decreased 25-hydroxyvitamin D-24-hydroxylase (24-hydroxylase), the first enzyme in the renal vitamin D catabolic pathway, in normal mice (117 +/- 21 to 69 +/- 8 fmol/mg protein.min), but increased enzyme activity in Gy mice (172 +/- 14 to 240 +/- 18 fmol/mg protein.min; P less than 0.05). Moreover, under both dietary conditions, 24-hydroxylase activity was significantly elevated in Gy mice. The present results demonstrate that hypophosphatemia in Gy mice can be attributed to a decrease in the maximum velocity of the high affinity Na(+)-phosphate cotransport process in renal brush-border membranes. Our results also show that while renal brush-border membrane phosphate transport is appropriately modulated by phosphate in Gy mice, phosphate regulation of vitamin D metabolism is apparently impaired in the mutant strain. The present findings provide evidence for phenotypic similarities between murine Gy and Hyp mutations.
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Affiliation(s)
- H S Tenenhouse
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
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17
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Mandla S, Jones G, Tenenhouse HS. Normal 24-hydroxylation of vitamin D metabolites in patients with vitamin D-dependency rickets type I. Structural implications for the vitamin D hydroxylases. J Clin Endocrinol Metab 1992; 74:814-20. [PMID: 1548347 DOI: 10.1210/jcem.74.4.1548347] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The steady state serum concentration of 1,25-dihydroxyvitamin D [1,25-(OH)2D] is determined by the relative rates of its biosynthesis via the renal mitochondrial 1-hydroxylase and catabolism via renal and target cell 24-hydroxylases. It is not yet known whether the two catalytic activities are mediated by the product of a single gene or products of distinct genes. To address this question, we undertook to assess 24-hydroxylase function in patients with vitamin D-dependency rickets type I (VDDR-I), a Mendelian disorder of 1,25-(OH)2D synthesis attributable to a defect in renal 1-hydroxylase activity. To assess renal 24-hydroxylase activity, we measured the serum concentration of 24,25-dihydroxyvitamin D [24,25-(OH)2D] and its 25-hydroxyvitamin D (25OHD) precursor. We also measured target cell, 1,25-(OH)2D3-inducible 24-hydroxylase activity and calcitroic acid production in skin fibroblasts from VDDR-I patients and age- and sex-matched controls. Serum levels of 24,25-(OH)2D and 25OHD were similar in VDDR-I patients and controls [ratio of product to substrate, 0.062 +/- 0.013 (n = 5) vs. 0.067 +/- 0.005 (n = 10), mean +/- SEM, for patients and controls, respectively]. Circulating levels of 1,25-(OH)2D were also comparable in both groups [80.6 +/- 15.5 (n = 5) vs. 86.1 +/- 5.2 (n = 10) pmol/L, for patients and controls, respectively], presumably indicative of compliance with calcitriol therapy. Skin fibroblasts from VDDR-I patients exhibited 24-hydroxylase activity which was indistinguishable from that observed in control fibroblasts [108 +/- 14 (n = 5) vs. 96 +/- 25 fmol/10(6) cells.min (n = 6), for patients and controls, respectively]. Similarly, calcitroic acid production was comparable in fibroblast cultures derived from the two groups of subjects [31 +/- 6 vs. 33 +/- 3 fmol/10(6) cells.min (n = 3), for patients and controls, respectively]. Our data demonstrate that renal and target cell 24-hydroxylase activities are normal in patients with VDDR-I and suggest that the renal 1- and 24-hydroxylases likely represent, or contain, distinct polypeptides encoded by different genes.
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Affiliation(s)
- S Mandla
- Department of Pediatrics, McGill University-Montreal Children's Hospital Research Institute, Montreal, Quebec, Canada
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18
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Mandla S, Tenenhouse HS. Inhibition of 25-hydroxyvitamin D3-24-hydroxylase by forskolin: evidence for a 3',5'-cyclic adenosine monophosphate-independent mechanism. Endocrinology 1992; 130:2145-51. [PMID: 1312447 DOI: 10.1210/endo.130.4.1312447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Forskolin has long been used to demonstrate the involvement of cAMP in the regulation of cellular function, by virtue of its ability to stimulate adenylate cyclase directly. Recently, however, forskolin has been shown to affect plasma membrane transporter and channel function in a manner unrelated to cAMP. The present study examines whether forskolin-mediated inhibition of a mitochondrial membrane-associated enzyme, 25-hydroxyvitamin D3-24-hydroxylase (24-hydroxylase), also occurs by a cAMP-independent mechanism. Both forskolin and PTH stimulated cAMP accumulation and inhibited 24-hydroxylase activity in a dose-dependent manner in fresh mouse renal tubules. However, the level of inhibition of 24-hydroxylase achieved with forskolin was consistently greater than that obtained with PTH, at comparable levels of cAMP. 1',9'-Dideoxyforskolin, a cyclase-inactive analog of forskolin, also inhibited 24-hydroxylase activity, without stimulating cAMP production. Moreover, both forskolin and 1',9'-dideoxyforskolin directly inhibited 24-hydroxylase in isolated renal mitochondria. Kinetic analysis revealed a competitive mode of inhibition for both agents; however, 1',9'-dideoxyforskolin proved to be a more potent inhibitor of 24-hydroxylase than forskolin (inhibitory constant, 0.25 vs. 22 microM, respectively). Finally, both forskolin and 1',9'-dideoxyforskolin also inhibited inducible 24-hydroxylase in renal tubules prepared from 1,25-(OH)2D3-treated mice. However, inducible 24-hydroxylase activity was less susceptible to inhibition by the diterpenes than the basal enzyme activity. The present study provides evidence for cAMP-independent inhibition of 24-hydroxylase by forskolin and represents the first demonstration of a cAMP-independent effect of forskolin on a protein that is not a plasma membrane-associated transporter or channel. Our data advocate caution in the interpretation of studies using forskolin to assess the role of cAMP in cellular processes.
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Affiliation(s)
- S Mandla
- Department of Pediatrics, McGill University, McGill University-Montreal Children's Hospital Research Institute, Quebec, Canada
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19
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Abstract
Although calcium-activated, phospholipid-dependent protein kinase (protein kinase C) has been implicated in the regulation of various steroidogenic pathways, comparatively little is known of its role in the metabolism of vitamin D. The present study was undertaken to determine whether protein kinase C is involved in the regulation of renal mitochondrial 25-hydroxyvitamin D3-24-hydroxylase (24-hydroxylase), the first enzyme in the C-24 oxidation pathway, a major catabolic pathway for vitamin D metabolites in kidney and other target tissues. We examined the effect of phorbol 12-myristate 13-acetate (PMA), a potent activator of protein kinase C, on 24-hydroxylase activity in fresh mouse renal tubules and correlated the changes in 24,25-dihydroxyvitamin D3 [24,25-(OH)2D3] production with translocation of protein kinase C and phosphorylation of mitochondrial proteins. PMA stimulated 24,25-(OH)2D3 synthesis, protein kinase C translocation from the cytosolic to the mitochondrial fraction, and phosphorylation of 30-35 K, 40 K, and 50 K mitochondrial proteins derived from 32P-labeled tubules. 4 alpha-Phorbol 12,13 didecanoate, an insert analog of PMA, did not elicit any of these effects. The synthetic diacylglycerol, oleoylacetyl glycerol, also stimulated 24,25-(OH)2D3 synthesis, whereas the protein kinase C inhibitors, H-7 and staurosporine, inhibited 24-hydroxylase activity. PMA did not further stimulate 24,25-(OH)2D3 production in tubules derived from mutant (Hyp) mice in which 24-hydroxylase and protein kinase C activities are elevated relative to normal. However, after treatment with H-7, 24-hydroxylase activity was reduced in both strains, and genotype differences were no longer apparent. Finally, H-7 failed to inhibit the induced renal 24-hydroxylase in tubules isolated from 1,25-dihydroxyvitamin D3-treated mice. These findings suggest a role for protein kinase C in the regulation of constitutive renal 24-hydroxylase and implicate the kinase in the aberrant expression of the hydroxylase in the Hyp mouse.
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Affiliation(s)
- S Mandla
- Department of Pediatrics, McGill University-Montreal Children's Hospital Research Institute, Montreal, Quebec, Canada
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20
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Boneh A, Mandla S, Tenenhouse HS. Phorbol myristate acetate activates protein kinase C, stimulates the phosphorylation of endogenous proteins and inhibits phosphate transport in mouse renal tubules. Biochim Biophys Acta 1989; 1012:308-16. [PMID: 2758041 DOI: 10.1016/0167-4889(89)90113-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Calcium-activated, phospholipid-dependent protein kinase (protein kinase C) has been implicated in the regulation of transport processes in a variety of tissues and cell lines. To establish whether protein kinase C participates in the regulation of renal phosphate transport, we examined the effect of phorbol myristate acetate (PMA), a potent activator of protein kinase C, on phosphate uptake in fresh preparations of mouse renal tubules, and we correlated the changes in transport activity with protein kinase C activation and phosphorylation of endogenous proteins. PMA inhibited Na+-dependent phosphate transport, elicited a rapid translocation of protein kinase C from the cytosolic to the particulate fraction and stimulated the phosphorylation of endogenous substrates in the cytosolic and brush border membrane fractions. Effects of PMA were maximal after a 10 min incubation of the tubules with the activator. 4 alpha-Phorbol, an inert analogue of PMA, did not elicit any of these effects. The present results demonstrate a temporal correlation between inhibition of Na+-dependent phosphate transport, translocation and activation of protein kinase C, and phosphorylation of endogenous proteins in mouse renal tubules. These data suggest that protein kinase C may play a regulatory role in phosphate transport in mammalian kidney.
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Affiliation(s)
- A Boneh
- Department of Pediatrics, McGill University, Montreal, Canada
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21
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Abstract
Basolateral membrane vesicles were prepared from mouse kidney by use of a Percoll density gradient method. The preparation was enriched ninefold in Na+-K+-ATPase with minimal contamination by other cellular membranes. The basolateral membranes were a mixture of sealed inside-out and right-side-out vesicles (30%) and leaky vesicles or sheets (70%). Taurine uptake into basolateral membrane vesicles was osmotically sensitive, sodium dependent, temperature sensitive, inhibited by beta-alanine, and saturable (apparent Km, 360 microM; Vmax, 25.4 pmol.mg protein-1.15 s-1), indicating transport by a carrier-mediated process. The function of this transporter was examined in an inbred mouse strain, C57BL/6J, which has selective hypertaurinuria, presumably a result of decreased basolateral membrane permeability to taurine [Rozen et al., Am. J. Physiol. 244 (Renal Fluid Electrolyte Physiol. 13): F150-F155, 1983]. The sodium-dependent component of taurine uptake was significantly lower in C57BL/6J vesicles relative to control (C3H/HeJ strain): 2.9 +/- 0.7 vs. 9.4 +/- 0.3 (SE) pmol.mg protein-1.15 s-1, respectively; P less than 0.001. The interstrain difference in uptake was specific for taurine and could not be ascribed to differences in vesicle purification, integrity, orientation, or size. These findings indicate that the renal basolateral membrane is the site of a transport defect, which explains decreased net taurine reabsorption in vivo in the C57BL/6J strain, and corroborate earlier observations in the renal cortical slice preparation.
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Affiliation(s)
- S Mandla
- Department of Biology, Faculty of Science, McGill University, Montreal, Quebec, Canada
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Lyon MF, Scriver CR, Baker LR, Tenenhouse HS, Kronick J, Mandla S. The Gy mutation: another cause of X-linked hypophosphatemia in mouse. Proc Natl Acad Sci U S A 1986; 83:4899-903. [PMID: 3460077 PMCID: PMC323851 DOI: 10.1073/pnas.83.13.4899] [Citation(s) in RCA: 97] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
An X-linked dominant mutation (gyro, gene symbol Gy) in the laboratory mouse causes hypophosphatemia, rickets/osteomalacia, circling behavior, inner ear abnormalities, and sterility in males and a milder phenotype in females. Gy maps closely (crossover value 0.4-0.8%) to another X-linked gene (Hyp) that also causes hypophosphatemia in the mouse. Gy and Hyp genes have similar quantitative expression in serum phosphorus values, renal excretion of phosphate, and impairment of Na+/phosphate cotransport by renal brush-border membrane vesicles. These findings indicate that independent translation products of two X-linked genes serve phosphate transport in mouse kidney and thereby control phosphate content of extracellular fluid. The Gy translation product, unlike the Hyp product, is also expressed in the inner ear. These findings have implications for our understanding of the human counterpart known as "X-linked hypophosphatemia."
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