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Castro JB, Oliveira BGB, Alves GG, Trott A, Houneau LJ, Kang HC, Ferreira MA. Effects of plasma rich in growth factors on wound healing in patients with venous ulcers. Regen Ther 2024; 25:284-289. [PMID: 38304616 PMCID: PMC10832287 DOI: 10.1016/j.reth.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 12/28/2023] [Accepted: 01/18/2024] [Indexed: 02/03/2024] Open
Abstract
Introduction Significant evidence suggests that plasma-rich in growth factors (PRGF) favor the repair of chronic wounds, enabling a rapid return to functionality. However, components of PRGF and their effects on persistent ulcers and epithelial tissues are not well characterized. The goals of this research were to analyze the biological properties of platelet-derived factors, to examine their effectiveness on healing of venous ulcers, and to establish a correlation with clinical and sociodemographic data. Methods For the preparation of PRGF, the centrifugation technique was used, obtaining a 100 % autologous and biocompatible blood sample that was treated with sodium citrate and calcium chloride. The patients were attended weekly at the outpatient clinic for nursing consultation and wound dressing changes, with PRGF application every 15 days. The treatment protocols are described, and follow-up results are reported. Results Initially, the patients' ulcers ranged in sizes from 4 to 84 cm2. After 12 weeks of treatment, there was a significant mean reduction of 46.2 % in ulcer area. At baseline, epithelial tissue was absent in all venous ulcers, but its presence grew significantly by the treatment period. However, the reduction of the area of the ulcers did not show significant correlation with the concentrations of the patient's growth factors. Conclusions Using the established protocol for PRGF isolating, it was possible to obtain a product with the presence of the six growth factors related to tissue regeneration and observed a positive response on wound healing following treatment of venous ulcers, with capacity to accelerate re-epithelialization and restore the skin functional integrity.
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Affiliation(s)
- Joyce B.A. Castro
- Antônio Rodrigues de Mello Paramyloidosis Study Center, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Gutemberg G. Alves
- Molecular and Cell Biology Department, Fluminense Federal University, Niteroi, RJ, Brazil
| | - Alexis Trott
- School of Nursing, Fluminense Federal University, Niterói, RJ, Brazil
| | | | - Hye Chung Kang
- Department of Pathology, Fluminense Federal University, Niterói, RJ, Brazil
| | - Márcia A. Ferreira
- Fundamentals of Nursing Department, Nursing School Anna Nery, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Baxter RC. Signaling Pathways of the Insulin-like Growth Factor Binding Proteins. Endocr Rev 2023; 44:753-778. [PMID: 36974712 PMCID: PMC10502586 DOI: 10.1210/endrev/bnad008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/25/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
The 6 high-affinity insulin-like growth factor binding proteins (IGFBPs) are multifunctional proteins that modulate cell signaling through multiple pathways. Their canonical function at the cellular level is to impede access of insulin-like growth factor (IGF)-1 and IGF-2 to their principal receptor IGF1R, but IGFBPs can also inhibit, or sometimes enhance, IGF1R signaling either through their own post-translational modifications, such as phosphorylation or limited proteolysis, or by their interactions with other regulatory proteins. Beyond the regulation of IGF1R activity, IGFBPs have been shown to modulate cell survival, migration, metabolism, and other functions through mechanisms that do not appear to involve the IGF-IGF1R system. This is achieved by interacting directly or functionally with integrins, transforming growth factor β family receptors, and other cell-surface proteins as well as intracellular ligands that are intermediates in a wide range of pathways. Within the nucleus, IGFBPs can regulate the diverse range of functions of class II nuclear hormone receptors and have roles in both cell senescence and DNA damage repair by the nonhomologous end-joining pathway, thus potentially modifying the efficacy of certain cancer therapeutics. They also modulate some immune functions and may have a role in autoimmune conditions such as rheumatoid arthritis. IGFBPs have been proposed as attractive therapeutic targets, but their ubiquity in the circulation and at the cellular level raises many challenges. By understanding the diversity of regulatory pathways with which IGFBPs interact, there may still be therapeutic opportunities based on modulation of IGFBP-dependent signaling.
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Affiliation(s)
- Robert C Baxter
- Kolling Institute of Medical Research, University of Sydney, Royal North Shore Hospital,St Leonards, NSW 2065, Australia
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3
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Huang J, Zhou H, He L, Zhong L, Zhou D, Yin Z. The promotive role of USP1 inhibition in coordinating osteogenic differentiation and fracture healing during nonunion. J Orthop Surg Res 2023; 18:152. [PMID: 36859264 PMCID: PMC9979441 DOI: 10.1186/s13018-023-03594-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/08/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Nonunion is a failure of fracture healing and a major complication after fractures. Ubiquitin-specific protease 1 (USP1) is a deubiquitinase that involved in cell differentiation and cell response to DNA damage. Herein we investigated the expression, function and mechanism of USP1 in nonunion. METHODS AND RESULTS Clinical samples were used to detect the USP1 expression in nonunion. ML323 was selected to inhibit USP1 expression throughout the study. Rat models and mouse embryonic osteoblasts cells (MC3T3-E1) were used to investigate the effects of USP1 inhibition on fracture healing and osteogenesis in vivo and in vitro, respectively. Histological changes were examined by micro-computerized tomography (Micro-CT), hematoxylin & eosin (H&E) staining and Masson staining. Alkaline phosphatase (ALP) activity detection and alizarin red staining were used for osteogenic differentiation observation. The expression of related factors was detected by quantitative real-time PCR, western blot or immunohistochemistry (IHC). It was shown that USP1 was highly expressed in nonunion patients and nonunion rats. USP1 inhibition by ML323 promoted fracture healing in nonunion rats and facilitated the expression of osteogenesis-related factors and the signaling of PI3K/Akt pathway. In addition, USP1 inhibition accelerated osteogenic differentiation and promoting PI3K/Akt signaling in MC3T3-E1 cells. CONCLUSIONS USP1 inhibition plays a promotive role in coordinating osteogenic differentiation and fracture healing during nonunion. PI3K/Akt may be the downstream pathway of USP1.
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Affiliation(s)
- Jun Huang
- The Microscopic Repair and Reconstruction Department of Hand and Foot, Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui Province, China
| | - Hongxiang Zhou
- The Microscopic Repair and Reconstruction Department of Hand and Foot, Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui Province, China
| | - Liang He
- The Microscopic Repair and Reconstruction Department of Hand and Foot, Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui Province, China
| | - Lin Zhong
- The Microscopic Repair and Reconstruction Department of Hand and Foot, Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui Province, China
| | - Ding Zhou
- The Microscopic Repair and Reconstruction Department of Hand and Foot, Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui Province, China
| | - Zongsheng Yin
- Department of Orthopedics, the First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, 230022, Anhui Province, China.
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Santra M, Liu YC, Jhanji V, Yam GHF. Human SMILE-Derived Stromal Lenticule Scaffold for Regenerative Therapy: Review and Perspectives. Int J Mol Sci 2022; 23:ijms23147967. [PMID: 35887309 PMCID: PMC9315730 DOI: 10.3390/ijms23147967] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/10/2022] [Accepted: 07/18/2022] [Indexed: 12/13/2022] Open
Abstract
A transparent cornea is paramount for vision. Corneal opacity is one of the leading causes of blindness. Although conventional corneal transplantation has been successful in recovering patients’ vision, the outcomes are challenged by a global lack of donor tissue availability. Bioengineered corneal tissues are gaining momentum as a new source for corneal wound healing and scar management. Extracellular matrix (ECM)-scaffold-based engineering offers a new perspective on corneal regenerative medicine. Ultrathin stromal laminar tissues obtained from lenticule-based refractive correction procedures, such as SMall Incision Lenticule Extraction (SMILE), are an accessible and novel source of collagen-rich ECM scaffolds with high mechanical strength, biocompatibility, and transparency. After customization (including decellularization), these lenticules can serve as an acellular scaffold niche to repopulate cells, including stromal keratocytes and stem cells, with functional phenotypes. The intrastromal transplantation of these cell/tissue composites can regenerate native-like corneal stromal tissue and restore corneal transparency. This review highlights the current status of ECM-scaffold-based engineering with cells, along with the development of drug and growth factor delivery systems, and elucidates the potential uses of stromal lenticule scaffolds in regenerative therapeutics.
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Affiliation(s)
- Mithun Santra
- Corneal Regeneration Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.S.); (V.J.)
| | - Yu-Chi Liu
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore 169856, Singapore;
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Vishal Jhanji
- Corneal Regeneration Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.S.); (V.J.)
| | - Gary Hin-Fai Yam
- Corneal Regeneration Laboratory, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (M.S.); (V.J.)
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore 169856, Singapore;
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
- Correspondence:
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Laurano R, Boffito M, Ciardelli G, Chiono V. Wound Dressing Products: a Translational Investigation from the Bench to the Market. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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VEGF-A, PDGF-BB and HB-EGF engineered for promiscuous super affinity to the extracellular matrix improve wound healing in a model of type 1 diabetes. NPJ Regen Med 2021; 6:76. [PMID: 34795305 PMCID: PMC8602425 DOI: 10.1038/s41536-021-00189-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 10/21/2021] [Indexed: 12/16/2022] Open
Abstract
Chronic non-healing wounds, frequently caused by diabetes, lead to lower quality of life, infection, and amputation. These wounds have limited treatment options. We have previously engineered growth factors to bind to exposed extracellular matrix (ECM) in the wound environment using the heparin-binding domain of placental growth factor-2 (PlGF-2123–144), which binds promiscuously to ECM proteins. Here, in the type 1 diabetic (T1D) NOD mouse model, engineered growth factors (eGFs) improved both re-epithelialization and granulation tissue formation. eGFs were even more potent in combination, and the “triple therapy” of vascular endothelial growth factor-A (VEGF-PlGF-2123–144), platelet-derived growth factor-BB (PDGF-BB-PlGF-2123–144), and heparin-binding epidermal growth factor (HB-EGF-PlGF-2123–144) both improved wound healing and remained at the site of administration for significantly longer than wild-type growth factors. In addition, we also found that changes in the cellular milieu of a wound, including changing amounts of M1 macrophages, M2 macrophages and effector T cells, are most predictive of wound-healing success in the NOD mouse model. These results suggest that the triple therapy of VEGF-PlGF-2123–144, PDGF-BB-PlGF-2123–144, and HB-EGF-PlGF-2123–144 may be an effective therapy for chronic non-healing wounds in that occur as a complication of diabetes.
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Correa S, Grosskopf AK, Lopez Hernandez H, Chan D, Yu AC, Stapleton LM, Appel EA. Translational Applications of Hydrogels. Chem Rev 2021; 121:11385-11457. [PMID: 33938724 PMCID: PMC8461619 DOI: 10.1021/acs.chemrev.0c01177] [Citation(s) in RCA: 332] [Impact Index Per Article: 110.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Indexed: 12/17/2022]
Abstract
Advances in hydrogel technology have unlocked unique and valuable capabilities that are being applied to a diverse set of translational applications. Hydrogels perform functions relevant to a range of biomedical purposes-they can deliver drugs or cells, regenerate hard and soft tissues, adhere to wet tissues, prevent bleeding, provide contrast during imaging, protect tissues or organs during radiotherapy, and improve the biocompatibility of medical implants. These capabilities make hydrogels useful for many distinct and pressing diseases and medical conditions and even for less conventional areas such as environmental engineering. In this review, we cover the major capabilities of hydrogels, with a focus on the novel benefits of injectable hydrogels, and how they relate to translational applications in medicine and the environment. We pay close attention to how the development of contemporary hydrogels requires extensive interdisciplinary collaboration to accomplish highly specific and complex biological tasks that range from cancer immunotherapy to tissue engineering to vaccination. We complement our discussion of preclinical and clinical development of hydrogels with mechanical design considerations needed for scaling injectable hydrogel technologies for clinical application. We anticipate that readers will gain a more complete picture of the expansive possibilities for hydrogels to make practical and impactful differences across numerous fields and biomedical applications.
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Affiliation(s)
- Santiago Correa
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Abigail K. Grosskopf
- Chemical
Engineering, Stanford University, Stanford, California 94305, United States
| | - Hector Lopez Hernandez
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | - Doreen Chan
- Chemistry, Stanford University, Stanford, California 94305, United States
| | - Anthony C. Yu
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
| | | | - Eric A. Appel
- Materials
Science & Engineering, Stanford University, Stanford, California 94305, United States
- Bioengineering, Stanford University, Stanford, California 94305, United States
- Pediatric
Endocrinology, Stanford University School
of Medicine, Stanford, California 94305, United States
- ChEM-H Institute, Stanford
University, Stanford, California 94305, United States
- Woods
Institute for the Environment, Stanford
University, Stanford, California 94305, United States
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8
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Meng C, Su W, Liu M, Yao S, Ding Q, Yu K, Xiong Z, Chen K, Guo X, Bo L, Sun T. Controlled delivery of bone morphogenic protein-2-related peptide from mineralised extracellular matrix-based scaffold induces bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112182. [PMID: 34082982 DOI: 10.1016/j.msec.2021.112182] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/23/2021] [Accepted: 05/10/2021] [Indexed: 12/12/2022]
Abstract
Ideal bone tissue engineering scaffolds composed of extracellular matrix (ECM) require excellent osteoconductive ability to imitate the bone environment. We developed a mineralised tissue-derived ECM-modified true bone ceramic (TBC) scaffold for the delivery of aspartic acid-modified bone morphogenic protein-2 (BMP-2) peptide (P28) and assessed its osteogenic capacity. Decellularized ECM from porcine small intestinal submucosa (SIS) was coated onto the surface of TBC, followed by mineralisation modification (mSIS/TBC). P28 was subsequently immobilised onto the scaffolds in the absence of a crosslinker. The alkaline phosphatase activity and other osteogenic differentiation marker results showed that osteogenesis of the P28/mSIS/TBC scaffolds was significantly greater than that of the TBC and mSIS/TBC groups. In addition, to examine the osteoconductive capability of this system in vivo, we established a rat calvarial bone defect model and evaluated the new bone area and new blood vessel density. Histological observation showed that P28/mSIS/TBC exhibited favourable bone regeneration efficacy. This study proposes the use of mSIS/TBC loaded with P28 as a promising osteogenic scaffold for bone tissue engineering applications.
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Affiliation(s)
- Chunqing Meng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Weijie Su
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Man Liu
- Department of Gastroenterology and Hepatology, Taikang Tongji Hospital, Wuhan 430050, China
| | - Sheng Yao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qiuyue Ding
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Keda Yu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zekang Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kaifang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lin Bo
- Department of Rheumatology, The second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu, China.
| | - Tingfang Sun
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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LeRoith D, Holly JMP, Forbes BE. Insulin-like growth factors: Ligands, binding proteins, and receptors. Mol Metab 2021; 52:101245. [PMID: 33962049 PMCID: PMC8513159 DOI: 10.1016/j.molmet.2021.101245] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/09/2021] [Accepted: 04/28/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND The insulin-like growth factor family of ligands (IGF-I, IGF-II, and insulin), receptors (IGF-IR, M6P/IGF-IIR, and insulin receptor [IR]), and IGF-binding proteins (IGFBP-1-6) play critical roles in normal human physiology and disease states. SCOPE OF REVIEW Insulin and insulin receptors are the focus of other chapters in this series and will therefore not be discussed further. Here we review the basic components of the IGF system, their role in normal physiology and in critical pathology's. While this review concentrates on the role of IGFs in human physiology, animal models have been essential in providing understanding of the IGF system, and its regulation, and are briefly described. MAJOR CONCLUSIONS IGF-I has effects via the circulation and locally within tissues to regulate cellular growth, differentiation, and survival, thereby controlling overall body growth. IGF-II levels are highest prenatally when it has important effects on growth. In adults, IGF-II plays important tissue-specific roles, including the maintenance of stem cell populations. Although the IGF-IR is closely related to the IR it has distinct physiological roles both on the cell surface and in the nucleus. The M6P/IGF-IIR, in contrast, is distinct and acts as a scavenger by mediating internalization and degradation of IGF-II. The IGFBPs bind IGF-I and IGF-II in the circulation to prolong their half-lives and modulate tissue access, thereby controlling IGF function. IGFBPs also have IGF ligand-independent cell effects.
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Affiliation(s)
- Derek LeRoith
- Division of Endocrinology, Diabetes and Bone Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jeff M P Holly
- Translational Health Sciences, Bristol Medical School, Learning & Research Building, Southmead Hospital, Bristol, BS10 5NB, UK.
| | - Briony E Forbes
- Discipline of Medical Biochemistry, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, 5042, Australia
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10
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Seims KB, Hunt NK, Chow LW. Strategies to Control or Mimic Growth Factor Activity for Bone, Cartilage, and Osteochondral Tissue Engineering. Bioconjug Chem 2021; 32:861-878. [PMID: 33856777 DOI: 10.1021/acs.bioconjchem.1c00090] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Growth factors play a critical role in tissue repair and regeneration. However, their clinical success is limited by their low stability, short half-life, and rapid diffusion from the delivery site. Supraphysiological growth factor concentrations are often required to demonstrate efficacy but can lead to adverse reactions, such as inflammatory complications and increased cancer risk. These issues have motivated the development of delivery systems that enable sustained release and controlled presentation of growth factors. This review specifically focuses on bioconjugation strategies to enhance growth factor activity for bone, cartilage, and osteochondral applications. We describe approaches to localize growth factors using noncovalent and covalent methods, bind growth factors via peptides, and mimic growth factor function with mimetic peptide sequences. We also discuss emerging and future directions to control spatiotemporal growth factor delivery to improve functional tissue repair and regeneration.
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Affiliation(s)
- Kelly B Seims
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Natasha K Hunt
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Lesley W Chow
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States.,Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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11
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Antioxidants as an Epidermal Stem Cell Activator. Antioxidants (Basel) 2020; 9:antiox9100958. [PMID: 33036398 PMCID: PMC7600937 DOI: 10.3390/antiox9100958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/05/2020] [Accepted: 10/05/2020] [Indexed: 01/18/2023] Open
Abstract
Antioxidants may modulate the microenvironment of epidermal stem cells by reducing the production of reactive oxygen species or by regulating the expression of extracellular matrix protein. The extracellular membrane is an important component of the stem cell niche, and microRNAs regulate extracellular membrane-mediated basal keratinocyte proliferation. In this narrative review, we will discuss several antioxidants such as ascorbic acid, plant extracts, peptides and hyaluronic acid, and their effect on the epidermal stem cell niche and the proliferative potential of interfollicular epidermal stem cells in 3D skin equivalent models.
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12
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The IGF-II-Insulin Receptor Isoform-A Autocrine Signal in Cancer: Actionable Perspectives. Cancers (Basel) 2020; 12:cancers12020366. [PMID: 32033443 PMCID: PMC7072655 DOI: 10.3390/cancers12020366] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/31/2020] [Accepted: 02/02/2020] [Indexed: 12/18/2022] Open
Abstract
Insulin receptor overexpression is a common event in human cancer. Its overexpression is associated with a relative increase in the expression of its isoform A (IRA), a shorter variant lacking 11 aa in the extracellular domain, conferring high affinity for the binding of IGF-II along with added intracellular signaling specificity for this ligand. Since IGF-II is secreted by the vast majority of malignant solid cancers, where it establishes autocrine stimuli, the co-expression of IGF-II and IRA in cancer provides specific advantages such as apoptosis escape, growth, and proliferation to those cancers bearing such a co-expression pattern. However, little is known about the exact role of this autocrine ligand–receptor system in sustaining cancer malignant features such as angiogenesis, invasion, and metastasis. The recent finding that the overexpression of angiogenic receptor kinase EphB4 along with VEGF-A is tightly dependent on the IGF-II/IRA autocrine system independently of IGFIR provided new perspectives for all malignant IGF2omas (those aggressive solid cancers secreting IGF-II). The present review provides an updated view of the IGF system in cancer, focusing on the biology of the autocrine IGF-II/IRA ligand–receptor axis and supporting its underscored role as a malignant-switch checkpoint target.
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Lu S, Xiong Q, Du K, Gan X, Wang X, Yang L, Wang Y, Ge F, He S. Comparative iTRAQ proteomics revealed proteins associated with lobed fin regeneration in Bichirs. Proteome Sci 2019; 17:6. [PMID: 31832023 PMCID: PMC6869209 DOI: 10.1186/s12953-019-0153-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 10/09/2019] [Indexed: 11/23/2022] Open
Abstract
Background Polypterus senegalus can fully regenerate its pectoral lobed fins, including a complex endoskeleton, with remarkable precision. However, despite the enormous potential of this species for use in medical research, its regeneration mechanisms remain largely unknown. Methods To identify the differentially expressed proteins (DEPs) during the early stages of lobed fin regeneration in P. senegalus, we performed a differential proteomic analysis using isobaric tag for relative and absolute quantitation (iTRAQ) approach based quantitative proteome from the pectoral lobed fins at 3 time points. Furthermore, we validated the changes in protein expression with multiple-reaction monitoring (MRM) analysis. Results The experiment yielded a total of 3177 proteins and 15,091 unique peptides including 1006 non-redundant (nr) DEPs. Of these, 592 were upregulated while 349 were downregulated after lobed fin amputation when compared to the original tissue. Bioinformatics analyses showed that the DEPs were mainly associated with Ribosome and RNA transport, metabolic, ECM-receptor interaction, Golgi and endoplasmic reticulum, DNA replication, and Regulation of actin cytoskeleton. Conclusions To our knowledge, this is the first proteomic research to investigate alterations in protein levels and affected pathways in bichirs’ lobe-fin/limb regeneration. In addition, our study demonstrated a highly dynamic regulation during lobed fin regeneration in P. senegalus. These results not only provide a comprehensive dataset on differentially expressed proteins during the early stages of lobe-fin/limb regeneration but also advance our understanding of the molecular mechanisms underlying lobe-fin/limb regeneration.
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Affiliation(s)
- Suxiang Lu
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China.,2Present address: Medical College of Pingdingshan University, Pingdingshan, 467000 Henan Province China
| | - Qian Xiong
- 3Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Kang Du
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Xiaoni Gan
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Xuzhen Wang
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Liandong Yang
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Ying Wang
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Feng Ge
- 3Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
| | - Shunping He
- 1Key Laboratory of Aquatic Biodiversity and Conservation of the Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072 Hubei China
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14
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Zhang L, Yaron JR, Tafoya AM, Wallace SE, Kilbourne J, Haydel S, Rege K, McFadden G, Lucas AR. A Virus-Derived Immune Modulating Serpin Accelerates Wound Closure with Improved Collagen Remodeling. J Clin Med 2019; 8:jcm8101626. [PMID: 31590323 PMCID: PMC6832452 DOI: 10.3390/jcm8101626] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/25/2019] [Accepted: 09/30/2019] [Indexed: 01/20/2023] Open
Abstract
Numerous treatments have been developed to promote wound healing based on current understandings of the healing process. Hemorrhaging, clotting, and associated inflammation regulate early wound healing. We investigated treatment with a virus-derived immune modulating serine protease inhibitor (SERPIN), Serp-1, which inhibits thrombolytic proteases and inflammation, in a mouse excisional wound model. Saline or recombinant Serp-1 were applied directly to wounds as single doses of 1 μg or 2 µg or as two 1 µg boluses. A chitosan-collagen hydrogel was also tested for Serp-1 delivery. Wound size was measured daily for 15 days and scarring assessed by Masson’s trichrome, Herovici’s staining, and immune cell dynamics and angiogenesis by immunohistochemistry. Serp-1 treatment significantly accelerated wound healing, but was blocked by urokinase-type plasminogen activator (uPAR) antibody. Repeated dosing at a lower concentration was more effective than single high-dose serpin. A single application of Serp-1-loaded chitosan-collagen hydrogel was as effective as repeated aqueous Serp-1 dosing. Serp-1 treatment of wounds increased arginase-1-expressing M2-polarized macrophage counts and periwound angiogenesis in the wound bed. Collagen staining also demonstrated that Serp-1 improves collagen maturation and organization at the wound site. Serp-1 has potential as a safe and effective immune modulating treatment that targets thrombolytic proteases, accelerating healing and reducing scar in deep cutaneous wounds.
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Affiliation(s)
- Liqiang Zhang
- Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Jordan R Yaron
- Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Amanda M Tafoya
- Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Sarah E Wallace
- Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Jacquelyn Kilbourne
- Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Shelley Haydel
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Kaushal Rege
- Chemical Engineering, Arizona State University, Tempe, AZ 85287, USA.
| | - Grant McFadden
- Center for Immunotherapy, Vaccines and Virotherapy, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
| | - Alexandra R Lucas
- Center for Personalized Diagnostics, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA.
- Chemical Engineering, Arizona State University, Tempe, AZ 85287, USA.
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15
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Yassa HA, Hanna RT, El Abdin HZ. Role of Autophagy Biomarkers In Burn-Age Estimation and Progression. Acad Forensic Pathol 2019; 9:163-171. [PMID: 32110251 PMCID: PMC6997983 DOI: 10.1177/1925362119891705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 11/03/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND Determination of time passed since burn injury in the living is critical in forensic science. Autophagy biomarkers and vitronectin can play an important role in determination of the age of burn injuries through their levels in the tissue. OBJECTIVE The aim of this study was to investigate the role of autophagy biomarkers in dating burn injury and to correlate them with the histopathological effects of deep second-degree thermal burn. METHOD Fifty-four male rats were used in this study after infliction of second-degree thermal burns to their skin. Samples were taken from them after 30 minutes and one, four, 24, 48, and 72 hours following burn to be examined histologically and also for autophagy biomarkers and vitronectin. RESULTS Significant reduction in the autophagy biomarkers (p < 0.001) over the first 24 hours then began to increase but still not reach the normal level up to 72 hours after burn. Vitronectin level increased after burn infliction 1.5-fold after first hour, then up to four-fold after four hours and after that began to decline but still did not reach the normal level up to 72 hours. CONCLUSION Autophagy biomarkers can be used as a forensic tool in determination of the time passed since burn infliction in living.
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Affiliation(s)
- Heba A. Yassa
- Heba A. Yassa MD, Assiut University Faculty of
Medicine, Assiut, Egypt 71111,
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16
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Stroggilos R, Mokou M, Latosinska A, Makridakis M, Lygirou V, Mavrogeorgis E, Drekolias D, Frantzi M, Mullen W, Fragkoulis C, Stasinopoulos K, Papadopoulos G, Stathouros G, Lazaris AC, Makrythanasis P, Ntoumas K, Mischak H, Zoidakis J, Vlahou A. Proteome-based classification of Nonmuscle Invasive Bladder Cancer. Int J Cancer 2019; 146:281-294. [PMID: 31286493 DOI: 10.1002/ijc.32556] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/17/2019] [Indexed: 01/21/2023]
Abstract
DNA/RNA-based classification of bladder cancer (BC) supports the existence of multiple molecular subtypes, while investigations at the protein level are scarce. Here, we aimed to investigate if Nonmuscle Invasive Bladder Cancer (NMIBC) can be stratified to biologically meaningful groups based on the proteome. Tissue specimens from 117 patients at primary diagnosis (98 with NMIBC and 19 with MIBC), were processed for high-resolution proteomics analysis by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The proteomics output was subjected to unsupervised consensus clustering, principal component analysis (PCA) and investigation of subtype-specific features, pathways, and gene sets. NMIBC patients were optimally stratified to three NMIBC proteomic subtypes (NPS), differing in size, clinicopathologic and molecular backgrounds: NPS1 (mostly high stage/grade/risk samples) was the smallest in size (17/98) and overexpressed proteins reflective of an immune/inflammatory phenotype, involved in cell proliferation, unfolded protein response and DNA damage response, whereas NPS2 (mixed stage/grade/risk composition) presented with an infiltrated/mesenchymal profile. NPS3 was rich in luminal/differentiation markers, in line with its pathological composition (mostly low stage/grade/risk samples). PCA revealed a close proximity of NPS1 and conversely, remoteness of NPS3 to the proteome of MIBC. Proteins distinguishing these two extreme subtypes were also found to consistently differ at the mRNA levels between high and low-risk subtypes of the UROMOL and LUND cohorts. Collectively, our study identifies three proteomic NMIBC subtypes and following a cross-omics validation in two independent cohorts, shortlists molecular features meriting further investigation for their biomarker or potentially therapeutic value.
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Affiliation(s)
- Rafael Stroggilos
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Marika Mokou
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | | | - Manousos Makridakis
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Vasiliki Lygirou
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | | | - Dimitrios Drekolias
- Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | - William Mullen
- British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom
| | | | | | - Georgios Papadopoulos
- Department of Urology, General Hospital of Athens 'Georgios Gennimatas', Athens, Greece
| | - Georgios Stathouros
- Department of Urology, General Hospital of Athens 'Georgios Gennimatas', Athens, Greece
| | - Andreas C Lazaris
- Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Periklis Makrythanasis
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.,Department of Genetic Medicine and Development, University of Geneva, Geneva, Switzerland
| | - Konstantinos Ntoumas
- Department of Urology, General Hospital of Athens 'Georgios Gennimatas', Athens, Greece
| | - Harald Mischak
- Mosaiques Diagnostics GmbH, Hannover, Germany.,British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Jerome Zoidakis
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Antonia Vlahou
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
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17
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Engineered delivery strategies for enhanced control of growth factor activities in wound healing. Adv Drug Deliv Rev 2019; 146:190-208. [PMID: 29879493 DOI: 10.1016/j.addr.2018.06.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/18/2018] [Accepted: 06/01/2018] [Indexed: 12/18/2022]
Abstract
Growth factors (GFs) are versatile signalling molecules that orchestrate the dynamic, multi-stage process of wound healing. Delivery of exogenous GFs to the wound milieu to mediate healing in an active, physiologically-relevant manner has shown great promise in laboratories; however, the inherent instability of GFs, accompanied with numerous safety, efficacy and cost concerns, has hindered the clinical success of GF delivery. In this article, we highlight that the key to overcoming these challenges is to enhance the control of the activities of GFs throughout the delivering process. We summarise the recent strategies based on biomaterials matrices and molecular engineering, which aim to improve the conditions of GFs for delivery (at the 'supply' end of the delivery), increase the stability and functions of GFs in extracellular matrix (in transportation to target cells), as well as enhance the GFs/receptor interaction on the cell membrane (at the 'destination' end of the delivery). Many of these investigations have led to encouraging outcomes in various in vitro and in vivo regenerative models with considerable translational potential.
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18
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Evans J, Infusini G, Mcgovern J, Cuttle L, Webb A, Nebl T, Milla L, Kimble R, Kempf M, Andrews CJ, Leavesley D, Salamonsen LA. Menstrual fluid factors facilitate tissue repair: identification and functional action in endometrial and skin repair. FASEB J 2018; 33:584-605. [DOI: 10.1096/fj.201800086r] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jemma Evans
- The Hudson Institute of Medical Research Clayton Victoria Australia
- Department of Molecular and Translational MedicineMonash University Clayton Victoria Australia
| | | | - Jacqui Mcgovern
- Institute of Health and Biomedical Innovation Brisbane Queensland Australia
| | - Leila Cuttle
- Centre for Children's Burns and Trauma ResearchSchool of Biomedical SciencesInstitute of Health and Biomedical InnovationCentre for Children's Health ResearchQueensland University of Technology Brisbane Queensland Australia
| | - Andrew Webb
- Walter and Eliza Hall Institute Parkville Victoria Australia
| | - Thomas Nebl
- Walter and Eliza Hall Institute Parkville Victoria Australia
| | - Liz Milla
- Walter and Eliza Hall Institute Parkville Victoria Australia
| | - Roy Kimble
- Centre for Children's Burns and Trauma ResearchCentre for Children's Health ResearchThe University of Queensland South Brisbane Queensland Australia
| | - Margit Kempf
- Centre for Children's Burns and Trauma ResearchCentre for Children's Health ResearchThe University of Queensland South Brisbane Queensland Australia
| | - Christine J. Andrews
- Centre for Children's Burns and Trauma ResearchCentre for Children's Health ResearchThe University of Queensland South Brisbane Queensland Australia
| | - David Leavesley
- Institute of Health and Biomedical Innovation Brisbane Queensland Australia
- Skin Research Institute of Singapore Singapore
| | - Lois A. Salamonsen
- The Hudson Institute of Medical Research Clayton Victoria Australia
- Department of Molecular and Translational MedicineMonash University Clayton Victoria Australia
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19
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Heher P, Mühleder S, Mittermayr R, Redl H, Slezak P. Fibrin-based delivery strategies for acute and chronic wound healing. Adv Drug Deliv Rev 2018; 129:134-147. [PMID: 29247766 DOI: 10.1016/j.addr.2017.12.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/24/2017] [Accepted: 12/09/2017] [Indexed: 12/17/2022]
Abstract
Fibrin, a natural hydrogel, is the end product of the physiological blood coagulation cascade and naturally involved in wound healing. Beyond its role in hemostasis, it acts as a local reservoir for growth factors and as a provisional matrix for invading cells that drive the regenerative process. Its unique intrinsic features do not only promote wound healing directly via modulation of cell behavior but it can also be fine-tuned to evolve into a delivery system for sustained release of therapeutic biomolecules, cells and gene vectors. To further augment tissue regeneration potential, current strategies exploit and modify the chemical and physical characteristics of fibrin to employ combined incorporation of several factors and their timed release. In this work we show advanced therapeutic approaches employing fibrin matrices in wound healing and cover the many possibilities fibrin offers to the field of regenerative medicine.
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20
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Dugdale B, Kato M, Deo P, Plan M, Harrison M, Lloyd R, Walsh T, Harding R, Dale J. Production of human vitronectin in Nicotiana benthamiana using the INPACT hyperexpression platform. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:394-403. [PMID: 28640945 PMCID: PMC5787849 DOI: 10.1111/pbi.12779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/13/2017] [Accepted: 06/16/2017] [Indexed: 05/29/2023]
Abstract
Human vitronectin (hVN) is a glycoprotein that functions as a cell adhesion molecule and a regulator of coagulation in blood plasma and the extracellular matrix. In vitro, hVN is added to serum-free media in order to promote the adhesion of animal cells to tissue culture surfaces and the proliferation of undifferentiated stem cells. Here, we report the production of hVN in Nicotiana benthamiana using the inducible In Plant ACTivation (INPACT) hyperexpression platform. N. benthamiana plants were transformed with an INPACT expression cassette encoding hVN, and both the Tobacco yellow dwarf virus Rep/RepA activator and Tomato bushy stunt virus p19 gene under the transcriptional control of the ethanol-inducible AlcR:alcA gene switch. hVN expression was maximal 4-5 days postactivation of the INPACT platform with a dilute ethanol solution, and crude yields of the recombinant protein reached a maximum of 643 ± 78 mg/kg fresh weight. A three-stage purification protocol was developed using heparin and polyhistidine tag affinity binding and size exclusion filtration, resulting in a plant-made hVN product of >90% purity. Storage conditions for plant-made hVN were identified that maximized the capacity of the recombinant protein to promote cell adhesion. Critically, plant-made hVN was shown to be functionally equivalent to commercial, plasma-derived hVN at promoting one-half maximal attachment of murine fibroblast cells (BALB-C/3T3) in serum-free medium at <0.1 μg/cm2 to tissue culture plasticware. The INPACT platform represents an attractive means of producing large quantities of functional, animal-free hVN for in vitro applications.
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Affiliation(s)
- Benjamin Dugdale
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Maiko Kato
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Pradeep Deo
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Manuel Plan
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
- Present address:
Metabolomics Australia (UQ Node)Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaQLD4072Australia
| | - Mark Harrison
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Robyn Lloyd
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Terry Walsh
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - Robert Harding
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
| | - James Dale
- Centre for Tropical Crops and BiocommoditiesQueensland University of Technology (QUT)BrisbaneQLDAustralia
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21
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Growth Factor Delivery Systems for Tissue Engineering and Regenerative Medicine. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:245-269. [PMID: 30357627 DOI: 10.1007/978-981-13-0950-2_13] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Growth factors (GFs) are often a key component in tissue engineering and regenerative medicine approaches. In order to fully exploit the therapeutic potential of GFs, GF delivery vehicles have to meet a number of key design criteria such as providing localized delivery and mimicking the dynamic native GF expression levels and patterns. The use of biomaterials as delivery systems is the most successful strategy for controlled delivery and has been translated into different commercially available systems. However, the risk of side effects remains an issue, which is mainly attributed to insufficient control over the release profile. This book chapter reviews the current strategies, chemistries, materials and delivery vehicles employed to overcome the current limitations associated with GF therapies.
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22
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Wroblewski M, Bauer R, Cubas Córdova M, Udonta F, Ben-Batalla I, Legler K, Hauser C, Egberts J, Janning M, Velthaus J, Schulze C, Pantel K, Bokemeyer C, Loges S. Mast cells decrease efficacy of anti-angiogenic therapy by secreting matrix-degrading granzyme B. Nat Commun 2017; 8:269. [PMID: 28814715 PMCID: PMC5559596 DOI: 10.1038/s41467-017-00327-8] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/20/2017] [Indexed: 02/03/2023] Open
Abstract
Resistance towards VEGF-centered anti-angiogenic therapy still represents a substantial clinical challenge. We report here that mast cells alter the proliferative and organizational state of endothelial cells which reduces the efficacy of anti-angiogenic therapy. Consequently, absence of mast cells sensitizes tumor vessels for anti-angiogenic therapy in different tumor models. Mechanistically, anti-angiogenic therapy only initially reduces tumor vessel proliferation, however, this treatment effect was abrogated over time as a result of mast cell-mediated restimulation of angiogenesis. We show that mast cells secrete increased amounts of granzyme b upon therapy, which mobilizes pro-angiogenic laminin- and vitronectin-bound FGF-1 and GM-CSF from the tumor matrix. In addition, mast cells also diminish efficacy of anti-angiogenic therapy by secretion of FGF-2. These pro-angiogenic factors act beside the targeted VEGFA–VEGFR2-axis and reinduce endothelial cell proliferation and angiogenesis despite the presence of anti-angiogenic therapy. Importantly, inhibition of mast cell degranulation with cromolyn is able to improve efficacy of anti-angiogenic therapy. Thus, concomitant mast cell-targeting might lead to improved efficacy of anti-angiogenic therapy. Resistance towards VEGF-centered anti-angiogenic therapy is an important clinical challenge. Here, the authors show that mast cells mediate resistance to anti-angiogenetic inhibitors by altering the proliferative and organizational state of endothelial cells through mobilization of FGF-1 and GM-CSF from the tumor matrix and secretion of FGF-2.
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Affiliation(s)
- M Wroblewski
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - R Bauer
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - M Cubas Córdova
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - F Udonta
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - I Ben-Batalla
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - K Legler
- Division of Molecular Oncology, Institute for Experimental Cancer Research, University Medical Center Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Straße 3, 25105, Kiel, Germany.,Department of Gynecology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - C Hauser
- Department of General, Visceral-, Thoracic-, Transplantation- and Pediatric Surgery, University Medical Center Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Straße 3, 25105, Kiel, Germany
| | - J Egberts
- Department of General, Visceral-, Thoracic-, Transplantation- and Pediatric Surgery, University Medical Center Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Straße 3, 25105, Kiel, Germany
| | - M Janning
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - J Velthaus
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - C Schulze
- Center for Molecular Neurobiology Hamburg, University Medical Center Hamburg-Eppendorf, Falkenried 94, 20251, Hamburg, Germany
| | - K Pantel
- Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - C Bokemeyer
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - S Loges
- Department of Hematology and Oncology with Sections BMT and Pneumology, Hubertus Wald Tumorzentrum, University Comprehensive Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany. .,Institute of Tumor Biology, Center of Experimental Medicine University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
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23
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Cooner M, Mann A, Tighe B. The nature and consequence of vitronectin interaction in the non-compromised contact lens wearing eye. Cont Lens Anterior Eye 2017; 40:228-235. [DOI: 10.1016/j.clae.2017.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/21/2016] [Accepted: 01/29/2017] [Indexed: 11/29/2022]
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24
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Chen Q, Zhou H, Yang Y, Chi M, Xie N, Zhang H, Deng X, Leavesley D, Shi H, Xie Y. Investigating the potential of Oxymatrine as a psoriasis therapy. Chem Biol Interact 2017; 271:59-66. [PMID: 28450041 DOI: 10.1016/j.cbi.2017.04.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 04/24/2017] [Indexed: 12/29/2022]
Abstract
Psoriasis vulgaris is a chronic inflammatory skin disease, stubbornly intractable, with substantial consequences for patient physical and mental welfare. Approaches currently available to treat psoriasis are not satisfactory due to undesirable side-effects or expense. Psoriasis is characterized by hyperproliferation and inflammation. Oxymatrine, an active component extracted from Sophora flavescens, has been demonstrated to possess anti-proliferation, anti-inflammatory, anti-tumorigenic, immune regulation and pro-apoptotic properties. This investigation presents a detailed retrospective review examining the effect of Oxymatrine on psoriasis and investigates the mechanisms underlying patient responses to Oxymatrine. We confirm that Oxymatrine administration significantly reduced the Psoriasis Area Severity Index score, with high efficacy compared to the control group. In addition, we have found that Oxymatrine significantly inhibits the viability, proliferation and differentiation of human keratinocyte in vitro. Immunohistochemical analysis indicates Oxymatrine significantly suppresses the expression of Pan-Cytokeratin, p63 and keratin 10. The results indicate that the suppression of p63 expression may lead to the anti-proliferation effect of Oxymatrine on human skin keratinocytes. Oxymatrine does not affect the formation of basement membrane, which is very important to maintain the normal function of human skin keratinocytes. In summary, Oxymatrine offers an effective, economical, and safe treatment for patients presenting with intractable psoriasis vulgaris.
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Affiliation(s)
- Qian Chen
- Ningxia Medical University, Ningxia, China
| | - Hui Zhou
- Department of Dermatology, General Hospital of Ningxia Medical University, Ningxia, China
| | - Yinxue Yang
- President of General Hospital of Ningxia Medical University, Ningxia, China
| | - Mingwei Chi
- Medical Affairs Office, General Hospital of Ningxia Medical University, Ningxia, China
| | - Nan Xie
- Tissue Organ Bank & Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - Hong Zhang
- Tissue Organ Bank & Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | | | - David Leavesley
- Tissue Organ Bank & Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China; Tissue Technologies, Institute of Medical Biology, Agency for Science, Technology and Research, Singapore; Skin Research Institute of Singapore, Agency for Science, Technology and Research, Singapore; School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia; Lee Kong Chain School of Medicine, Nanyang Technological University, Singapore
| | - Huijuan Shi
- Department of Dermatology, General Hospital of Ningxia Medical University, Ningxia, China.
| | - Yan Xie
- Tissue Organ Bank & Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China; School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia.
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25
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McGovern J, Meinert C, de Veer S, Hollier B, Parker T, Upton Z. Attenuated kallikrein‐related peptidase activity disrupts desquamation and leads to stratum corneum thickening in human skin equivalent models. Br J Dermatol 2016; 176:145-158. [DOI: 10.1111/bjd.14879] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2016] [Indexed: 12/29/2022]
Affiliation(s)
- J.A. McGovern
- Tissue Repair and Regeneration Program Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
- School of Biomedical Sciences Faculty of Health Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
| | - C. Meinert
- Cartilage Regeneration Laboratory Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
| | - S.J. de Veer
- Molecular Simulation Group Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
| | - B.G. Hollier
- Tissue Repair and Regeneration Program Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
| | - T.J. Parker
- Tissue Repair and Regeneration Program Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
- School of Biomedical Sciences Faculty of Health Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
| | - Z. Upton
- Tissue Repair and Regeneration Program Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
- School of Biomedical Sciences Faculty of Health Institute of Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
- Institute of Medical Biology Agency for Science, Technology and Research (A*STAR) Biomedical Grove Singapore
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Johnson NR, Wang Y. Drug delivery systems for wound healing. Curr Pharm Biotechnol 2016; 16:621-9. [PMID: 25658378 DOI: 10.2174/1389201016666150206113720] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/19/2014] [Accepted: 12/21/2014] [Indexed: 12/19/2022]
Abstract
Protein, gene, and small molecule therapies hold great potential for facilitating comprehensive tissue repair and regeneration. However, their clinical value will rely on effective delivery systems which maximize their therapeutic benefit. Significant advances have been made in recent years towards biomaterial delivery systems to satisfy this clinical need. Here we summarize the most outstanding advances in drug delivery technology for cutaneous wound healing.
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Affiliation(s)
| | - Yadong Wang
- 320 Benedum Hall, 3700 O'Hara St, Pittsburgh, PA 15261 USA.
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Farokhi M, Mottaghitalab F, Shokrgozar MA, Ou KL, Mao C, Hosseinkhani H. Importance of dual delivery systems for bone tissue engineering. J Control Release 2016; 225:152-69. [PMID: 26805518 DOI: 10.1016/j.jconrel.2016.01.033] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/18/2016] [Accepted: 01/19/2016] [Indexed: 02/07/2023]
Abstract
Bone formation is a complex process that requires concerted function of multiple growth factors. For this, it is essential to design a delivery system with the ability to load multiple growth factors in order to mimic the natural microenvironment for bone tissue formation. However, the short half-lives of growth factors, their relatively large size, slow tissue penetration, and high toxicity suggest that conventional routes of administration are unlikely to be effective. Therefore, it seems that using multiple bioactive factors in different delivery systems can develop new strategies for improving bone tissue regeneration. Combination of these factors along with biomaterials that permit tunable release profiles would help to achieve truly spatiotemporal regulation during delivery. This review summarizes the various dual-control release systems that are used for bone tissue engineering.
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Affiliation(s)
- Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.
| | - Fatemeh Mottaghitalab
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Keng-Liang Ou
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei, Taiwan; Department of Dentistry, Taipei Medical University - Shuang Ho Hospital, New Taipei city, Taiwan
| | - Chuanbin Mao
- Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK 73019, USA
| | - Hossein Hosseinkhani
- Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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Mitchell AC, Briquez PS, Hubbell JA, Cochran JR. Engineering growth factors for regenerative medicine applications. Acta Biomater 2016; 30:1-12. [PMID: 26555377 PMCID: PMC6067679 DOI: 10.1016/j.actbio.2015.11.007] [Citation(s) in RCA: 217] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 10/27/2015] [Accepted: 11/06/2015] [Indexed: 01/10/2023]
Abstract
Growth factors are important morphogenetic proteins that instruct cell behavior and guide tissue repair and renewal. Although their therapeutic potential holds great promise in regenerative medicine applications, translation of growth factors into clinical treatments has been hindered by limitations including poor protein stability, low recombinant expression yield, and suboptimal efficacy. This review highlights current tools, technologies, and approaches to design integrated and effective growth factor-based therapies for regenerative medicine applications. The first section describes rational and combinatorial protein engineering approaches that have been utilized to improve growth factor stability, expression yield, biodistribution, and serum half-life, or alter their cell trafficking behavior or receptor binding affinity. The second section highlights elegant biomaterial-based systems, inspired by the natural extracellular matrix milieu, that have been developed for effective spatial and temporal delivery of growth factors to cell surface receptors. Although appearing distinct, these two approaches are highly complementary and involve principles of molecular design and engineering to be considered in parallel when developing optimal materials for clinical applications. STATEMENT OF SIGNIFICANCE Growth factors are promising therapeutic proteins that have the ability to modulate morphogenetic behaviors, including cell survival, proliferation, migration and differentiation. However, the translation of growth factors into clinical therapies has been hindered by properties such as poor protein stability, low recombinant expression yield, and non-physiological delivery, which lead to suboptimal efficacy and adverse side effects. To address these needs, researchers are employing clever molecular and material engineering and design strategies to both improve the intrinsic properties of growth factors and effectively control their delivery into tissue. This review highlights examples of interdisciplinary tools and technologies used to augment the therapeutic potential of growth factors for clinical applications in regenerative medicine.
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Affiliation(s)
- Aaron C Mitchell
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Priscilla S Briquez
- Institute for Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Jeffrey A Hubbell
- Institute for Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland; Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA; Materials Science Division, Argonne National Laboratory, Argonne, IL, USA.
| | - Jennifer R Cochran
- Department of Bioengineering, Stanford University, Stanford, CA, USA; Department of Chemical Engineering, Stanford University, Stanford, CA, USA.
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Martino MM, Briquez PS, Maruyama K, Hubbell JA. Extracellular matrix-inspired growth factor delivery systems for bone regeneration. Adv Drug Deliv Rev 2015; 94:41-52. [PMID: 25895621 DOI: 10.1016/j.addr.2015.04.007] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 03/27/2015] [Accepted: 04/11/2015] [Indexed: 12/22/2022]
Abstract
Growth factors are very promising molecules to enhance bone regeneration. However, their translation to clinical use has been seriously limited, facing issues related to safety and cost-effectiveness. These problems derive from the vastly supra-physiological doses of growth factor used without optimized delivery systems. Therefore, these issues have motivated the development of new delivery systems allowing better control of the spatiotemporal release and signaling of growth factors. Because the extracellular matrix (ECM) naturally plays a fundamental role in coordinating growth factor activity in vivo, a number of novel delivery systems have been inspired by the growth factor regulatory function of the ECM. After introducing the role of growth factors during the bone regeneration process, this review exposes different issues that growth factor-based therapies have encountered in the clinic and highlights recent delivery approaches based on the natural interaction between growth factor and the ECM.
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Affiliation(s)
- Mikaël M Martino
- Immunology Frontier Research Center, Osaka University, Osaka, Japan.
| | - Priscilla S Briquez
- Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Kenta Maruyama
- Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Jeffrey A Hubbell
- Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland; Institute for Molecular Engineering, University of Chicago, Chicago, IL, USA; Materials Science Division, Argonne National Laboratory, Argonne, IL, USA.
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Briquez PS, Hubbell JA, Martino MM. Extracellular Matrix-Inspired Growth Factor Delivery Systems for Skin Wound Healing. Adv Wound Care (New Rochelle) 2015; 4:479-489. [PMID: 26244104 DOI: 10.1089/wound.2014.0603] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 10/31/2014] [Indexed: 12/15/2022] Open
Abstract
Significance: Growth factors are very promising molecules for the treatment of skin wounds. However, their translation to clinical use has been seriously limited, facing issues related to safety and cost-effectiveness. These problems may derive from the fact that growth factors are used at vastly supra-physiological levels without optimized delivery systems. Recent Advances: The extracellular matrix (ECM) plays a fundamental role in coordinating growth factor signaling. Therefore, understanding the mechanisms by which the ECM modulates growth factor activity is key for designing efficient growth factor-based therapies. Recently, several growth factor-binding domains have been discovered within various ECM proteins, and growth factor delivery systems integrating these ECM growth factor-binding domains showed promising results in animal models of skin wound healing. Moreover, a novel strategy consisting of engineering growth factors to target endogenous ECM could substantially enhance their efficacy, even when used at low doses. Critical Issues: Optimal delivery of growth factors often requires complex engineered biomaterial matrices, which can face regulatory issues for clinical translation. To simplify delivery systems and render strategies more applicable, growth factors can be engineered to optimally function with clinically approved biomaterials or with endogenous ECM present at the delivery site. Future Directions: Further development and clinical trials will reveal whether growth factor-based therapies can be used as main therapeutic approaches for skin wound healing. The future impact of these therapies will depend on our capacity to deliver growth factors more precisely, to improve efficacy, safety, and cost-effectiveness.
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Affiliation(s)
- Priscilla S. Briquez
- Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Jeffrey A. Hubbell
- Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Institute for Molecular Engineering, University of Chicago, Chicago, Illinois
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois
| | - Mikaël M. Martino
- World Premier International Immunology Frontier Research Center, Osaka University, Osaka, Japan
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Novel Antioxidant Tripeptide "ACQ" Can Prevent UV-Induced Cell Death and Preserve the Number of Epidermal Stem Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015. [PMID: 26199677 PMCID: PMC4496495 DOI: 10.1155/2015/359740] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We found that tripeptide “ACQ: alanine-cysteine-glutamine” has significant DPPH scavenging activity compared to that of glutathione. Antioxidant effects of ACQ were tested in in vitro and in vivo models. When treated with H2O2, mock treated fibroblasts and keratinocytes showed strong staining by H2DCFA. But, ACQ showed good protective effects against hydrogen peroxide treatment. When mice were fed for 2 or 4 weeks, similar protective effects were observed. In the control group, epidermis was severely damaged by UV irradiation and apoptotic keratinocytes were observed. There were also numerous TUNEL positive cells. But in the ACQ group, epidermis became thicker and there was no sign of severe damage. Interestingly, the number of p63 cells was also higher in ACQ fed mice. To confirm the stem cell rescuing effects of ACQ, three-dimensional skin samples were constructed. Results showed that ACQ increased the expression of integrin α6 and the number of p63 positive cells. These findings showed that ACQ has good antioxidant activity and may increase stem cell activities by the regulation of integrin α6.
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Vieira AE, Repeke CE, Ferreira Junior SDB, Colavite PM, Biguetti CC, Oliveira RC, Assis GF, Taga R, Trombone APF, Garlet GP. Intramembranous bone healing process subsequent to tooth extraction in mice: micro-computed tomography, histomorphometric and molecular characterization. PLoS One 2015; 10:e0128021. [PMID: 26023920 PMCID: PMC4449187 DOI: 10.1371/journal.pone.0128021] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/21/2015] [Indexed: 01/12/2023] Open
Abstract
Bone tissue has a significant potential for healing, which involves a significant the interplay between bone and immune cells. While fracture healing represents a useful model to investigate endochondral bone healing, intramembranous bone healing models are yet to be developed and characterized. In this study, a micro-computed tomography, histomorphometric and molecular (RealTimePCRarray) characterization of post tooth-extraction alveolar bone healing was performed on C57Bl/6 WT mice. After the initial clot dominance (0h), the development of a provisional immature granulation tissue is evident (7d), characterized by marked cell proliferation, angiogenesis and inflammatory cells infiltration; associated with peaks of growth factors (BMP-2-4-7,TGFβ1,VEGFa), cytokines (TNFα, IL-10), chemokines & receptors (CXCL12, CCL25, CCR5, CXCR4), matrix (Col1a1-2, ITGA4, VTN, MMP1a) and MSCs (CD105, CD106, OCT4, NANOG, CD34, CD146) markers expression. Granulation tissue is sequentially replaced by more mature connective tissue (14d), characterized by inflammatory infiltrate reduction along the increased bone formation, marked expression of matrix remodeling enzymes (MMP-2-9), bone formation/maturation (RUNX2, ALP, DMP1, PHEX, SOST) markers, and chemokines & receptors associated with healing (CCL2, CCL17, CCR2). No evidences of cartilage cells or tissue were observed, strengthening the intramembranous nature of bone healing. Bone microarchitecture analysis supports the evolving healing, with total tissue and bone volumes as trabecular number and thickness showing a progressive increase over time. The extraction socket healing process is considered complete (21d) when the dental socket is filled by trabeculae bone with well-defined medullary canals; it being the expression of mature bone markers prevalent at this period. Our data confirms the intramembranous bone healing nature of the model used, revealing parallels between the gene expression profile and the histomorphometric events and the potential participation of MCSs and immune cells in the healing process, supporting the forthcoming application of the model for the better understanding of the bone healing process.
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Affiliation(s)
- Andreia Espindola Vieira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Carlos Eduardo Repeke
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Priscila Maria Colavite
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Claudia Cristina Biguetti
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Gerson Francisco Assis
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rumio Taga
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
- * E-mail:
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El-Refaie WM, Elnaggar YS, El-Massik MA, Abdallah OY. Novel curcumin-loaded gel-core hyaluosomes with promising burn-wound healing potential: Development, in-vitro appraisal and in-vivo studies. Int J Pharm 2015; 486:88-98. [DOI: 10.1016/j.ijpharm.2015.03.052] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 03/22/2015] [Accepted: 03/25/2015] [Indexed: 10/23/2022]
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Martino MM, Brkic S, Bovo E, Burger M, Schaefer DJ, Wolff T, Gürke L, Briquez PS, Larsson HM, Gianni-Barrera R, Hubbell JA, Banfi A. Extracellular matrix and growth factor engineering for controlled angiogenesis in regenerative medicine. Front Bioeng Biotechnol 2015; 3:45. [PMID: 25883933 PMCID: PMC4381713 DOI: 10.3389/fbioe.2015.00045] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 03/19/2015] [Indexed: 01/22/2023] Open
Abstract
Blood vessel growth plays a key role in regenerative medicine, both to restore blood supply to ischemic tissues and to ensure rapid vascularization of clinical-size tissue-engineered grafts. For example, vascular endothelial growth factor (VEGF) is the master regulator of physiological blood vessel growth and is one of the main molecular targets of therapeutic angiogenesis approaches. However, angiogenesis is a complex process and there is a need to develop rational therapeutic strategies based on a firm understanding of basic vascular biology principles, as evidenced by the disappointing results of initial clinical trials of angiogenic factor delivery. In particular, the spatial localization of angiogenic signals in the extracellular matrix (ECM) is crucial to ensure the proper assembly and maturation of new vascular structures. Here, we discuss the therapeutic implications of matrix interactions of angiogenic factors, with a special emphasis on VEGF, as well as provide an overview of current approaches, based on protein and biomaterial engineering that mimic the regulatory functions of ECM to optimize the signaling microenvironment of vascular growth factors.
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Affiliation(s)
- Mikaël M Martino
- Host Defense, Immunology Frontier Research Center, Osaka University , Osaka , Japan
| | - Sime Brkic
- Cell and Gene Therapy, Department of Biomedicine, Basel University , Basel , Switzerland ; Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Emmanuela Bovo
- Cell and Gene Therapy, Department of Biomedicine, Basel University , Basel , Switzerland ; Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Maximilian Burger
- Cell and Gene Therapy, Department of Biomedicine, Basel University , Basel , Switzerland ; Department of Surgery, Basel University Hospital , Basel , Switzerland ; Plastic, Reconstructive, Aesthetic and Hand Surgery, Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Dirk J Schaefer
- Plastic, Reconstructive, Aesthetic and Hand Surgery, Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Thomas Wolff
- Cell and Gene Therapy, Department of Biomedicine, Basel University , Basel , Switzerland ; Department of Surgery, Basel University Hospital , Basel , Switzerland ; Vascular Surgery, Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Lorenz Gürke
- Vascular Surgery, Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Priscilla S Briquez
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne , Switzerland
| | - Hans M Larsson
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne , Switzerland
| | - Roberto Gianni-Barrera
- Cell and Gene Therapy, Department of Biomedicine, Basel University , Basel , Switzerland ; Department of Surgery, Basel University Hospital , Basel , Switzerland
| | - Jeffrey A Hubbell
- Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne , Switzerland ; Institute for Molecular Engineering, University of Chicago , Chicago, IL , USA ; Argonne National Laboratory, Materials Science Division , Argonne, IL , USA
| | - Andrea Banfi
- Cell and Gene Therapy, Department of Biomedicine, Basel University , Basel , Switzerland ; Department of Surgery, Basel University Hospital , Basel , Switzerland
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Parker TJ, Broadbent JA, McGovern JA, Broszczak DA, Parker CN, Upton Z. Provisional Matrix Deposition in Hemostasis and Venous Insufficiency: Tissue Preconditioning for Nonhealing Venous Ulcers. Adv Wound Care (New Rochelle) 2015; 4:174-191. [PMID: 25785239 PMCID: PMC4352700 DOI: 10.1089/wound.2013.0462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Indexed: 01/07/2023] Open
Abstract
Significance: Chronic wounds represent a major burden on global healthcare systems and reduce the quality of life of those affected. Significant advances have been made in our understanding of the biochemistry of wound healing progression. However, knowledge regarding the specific molecular processes influencing chronic wound formation and persistence remains limited. Recent Advances: Generally, healing of acute wounds begins with hemostasis and the deposition of a plasma-derived provisional matrix into the wound. The deposition of plasma matrix proteins is known to occur around the microvasculature of the lower limb as a result of venous insufficiency. This appears to alter limb cutaneous tissue physiology and consequently drives the tissue into a 'preconditioned' state that negatively influences the response to wounding. Critical Issues: Processes, such as oxygen and nutrient suppression, edema, inflammatory cell trapping/extravasation, diffuse inflammation, and tissue necrosis are thought to contribute to the advent of a chronic wound. Healing of the wound then becomes difficult in the context of an internally injured limb. Thus, interventions and therapies for promoting healing of the limb is a growing area of interest. For venous ulcers, treatment using compression bandaging encourages venous return and improves healing processes within the limb, critically however, once treatment concludes ulcers often reoccur. Future Directions: Improved understanding of the composition and role of pericapillary matrix deposits in facilitating internal limb injury and subsequent development of chronic wounds will be critical for informing and enhancing current best practice therapies and preventative action in the wound care field.
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Affiliation(s)
- Tony J. Parker
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - James A. Broadbent
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Jacqui A. McGovern
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Daniel A. Broszczak
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Christina N. Parker
- Institute of Health and Biomedical Innovation, School of Nursing, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Zee Upton
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
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Ramadhin C, Pillay B, Olaniran AO. Cell-based assays for IGF-I bioactivity measurement: overview, limitations and current trends. Growth Factors 2014; 32:130-8. [PMID: 25060037 DOI: 10.3109/08977194.2014.939806] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Insulin-like growth factor-I (IGF-I) is an important growth promoting protein that is involved in numerous cellular responses and multiple biological systems. Although the molecular structure, function and recombinant production of IGF-I in various hosts have been the subject of much researches over the recent past, methods to determine the bioactivity of this protein have not been fully explored. Several assays have traditionally been used to measure IGF-I bioactivity, but have not become a routine laboratory practice due to the high cost involved and technical problems. Thus, there is still a need for a rapid, technically simple and accurate assay to determine IGF-I bioactivity. This review highlights the various cell-based assays currently commercially available for measuring the bioactivity of IGF-I along with their limitations. This is aimed at presenting the modern-day IGF researcher with a holistic overview of the current trends and future prospects regarding IGF-I bioactivity determinations.
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Affiliation(s)
- Charlotte Ramadhin
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal , Durban , Republic of South Africa
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Rizzi SC, Upton Z, Bott K, Dargaville TR. Recent advances in dermal wound healing: biomedical device approaches. Expert Rev Med Devices 2014; 7:143-54. [DOI: 10.1586/erd.09.57] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Mastri M, Shah Z, Hsieh K, Wang X, Wooldridge B, Martin S, Suzuki G, Lee T. Secreted Frizzled-related protein 2 as a target in antifibrotic therapeutic intervention. Am J Physiol Cell Physiol 2013; 306:C531-9. [PMID: 24336656 DOI: 10.1152/ajpcell.00238.2013] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Progressive fibrosis is a pathological hallmark of many chronic diseases responsible for organ failure. Although there is currently no therapy on the market that specifically targets fibrosis, the dynamic fibrogenic process is known to be regulated by multiple soluble mediators that may be therapeutically intervened. The failing hamster heart exhibits marked fibrosis and increased expression of secreted Frizzled-related protein 2 (sFRP2) amenable to reversal by mesenchymal stem cell (MSC) therapy. Given the previous demonstration that sFRP2-null mice subjected to myocardial infarction exhibited reduced fibrosis and improved function, we tested whether antibody-based sFRP2 blockade might counteract the fibrogenic pathway and repair cardiac injury. Cardiomyopathic hamsters were injected intraperitoneally twice a week each with 20 μg of sFRP2 antibody. Echocardiography, histology, and biochemical analyses were performed after 1 mo. sFRP2 antibody increased left ventricular ejection fraction from 40 ± 1.2 to 49 ± 6.5%, whereas saline and IgG control exhibited a further decline to 37 ± 0.9 and 31 ± 3.2%, respectively. Functional improvement is associated with a ∼ 50% reduction in myocardial fibrosis, ∼ 65% decrease in apoptosis, and ∼ 75% increase in wall thickness. Consistent with attenuated fibrosis, both MSC therapy and sFRP2 antibody administration significantly increased the activity of myocardial matrix metalloproteinase-2. Gene expression analysis of the hamster heart and cultured fibroblasts identified Axin2 as a downstream target, the expression of which was activated by sFRP2 but inhibited by therapeutic intervention. sFRP2 blockade also increased myocardial levels of VEGF and hepatocyte growth factor (HGF) along with increased angiogenesis. These findings highlight the pathogenic effect of dysregulated sFRP2, which may be specifically targeted for antifibrotic therapy.
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Affiliation(s)
- Michalis Mastri
- Department of Biochemistry and Department of Biomedical Engineering, Center for Research in Cardiovascular Medicine, University at Buffalo, Buffalo, New York
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Lysine residues of IGF-I are substrates for transglutaminases and modulate downstream IGF-I signalling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:3176-3185. [DOI: 10.1016/j.bbamcr.2013.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 09/02/2013] [Accepted: 09/03/2013] [Indexed: 01/20/2023]
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40
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Treloar KK, Simpson MJ. Sensitivity of edge detection methods for quantifying cell migration assays. PLoS One 2013; 8:e67389. [PMID: 23826283 PMCID: PMC3691172 DOI: 10.1371/journal.pone.0067389] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 05/19/2013] [Indexed: 12/27/2022] Open
Abstract
Quantitative imaging methods to analyze cell migration assays are not standardized. Here we present a suite of two-dimensional barrier assays describing the collective spreading of an initially-confined population of 3T3 fibroblast cells. To quantify the motility rate we apply two different automatic image detection methods to locate the position of the leading edge of the spreading population after , and hours. These results are compared with a manual edge detection method where we systematically vary the detection threshold. Our results indicate that the observed spreading rates are very sensitive to the choice of image analysis tools and we show that a standard measure of cell migration can vary by as much as 25% for the same experimental images depending on the details of the image analysis tools. Our results imply that it is very difficult, if not impossible, to meaningfully compare previously published measures of cell migration since previous results have been obtained using different image analysis techniques and the details of these techniques are not always reported. Using a mathematical model, we provide a physical interpretation of our edge detection results. The physical interpretation is important since edge detection algorithms alone do not specify any physical measure, or physical definition, of the leading edge of the spreading population. Our modeling indicates that variations in the image threshold parameter correspond to a consistent variation in the local cell density. This means that varying the threshold parameter is equivalent to varying the location of the leading edge in the range of approximately 1–5% of the maximum cell density.
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Affiliation(s)
- Katrina K. Treloar
- School of Mathematical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Queensland, Australia
| | - Matthew J. Simpson
- School of Mathematical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology, Brisbane, Queensland, Australia
- * E-mail:
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Sivaramakrishnan M, Kashyap AS, Amrein B, Saenger S, Meier S, Staudenmaier C, Upton Z, Metzger F. PEGylation of lysine residues reduces the pro-migratory activity of IGF-I. Biochim Biophys Acta Gen Subj 2013; 1830:4734-42. [PMID: 23800578 DOI: 10.1016/j.bbagen.2013.06.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 05/17/2013] [Accepted: 06/13/2013] [Indexed: 01/15/2023]
Abstract
BACKGROUND The insulin-like growth factor (IGF) system is composed of ligands and receptors which regulate cell proliferation, survival, differentiation and migration. Some of these functions involve regulation by the extracellular milieu, including binding proteins and other extracellular matrix proteins. However, the functions and exact nature of these interactions remain incomplete. METHODS IGF-I variants PEGylated at lysines K27, K65 and K68, were assessed for binding to IGFBPs using BIAcore, and for phosphorylation of the IGF-IR. Furthermore, functional consequences of PEGylation were investigated using cell viability and migration assays. In addition, downstream signaling pathways were analyzed using phospho-AKT and phospho-ERK1/2 assays. RESULTS IGF-I PEGylated at lysines 27 (PEG-K27), 65 (PEG-K65) or 68 (PEG-K68) was employed. Receptor phosphorylation was similarly reduced 2-fold with PEG-K65 and PEG-K68 in 3T3 fibroblasts and MCF-7 breast cancer cells, whereas PEG-K27 showed a more than 10- and 3-fold lower activation for 3T3 and MCF-7 cells, respectively. In addition, all PEG-IGF-I variants had a 10-fold reduced association rate to IGF binding proteins (IGFBPs). Functionally, all PEG variants lost their ability to induce cell migration in the presence of IGFBP-3/vitronectin (VN) complexes, whereas cell viability was fully preserved. Analysis of downstream signaling revealed that AKT was preferentially affected upon treatment with PEG-IGF-I variants whereas MAPK signaling was unaffected by PEGylation. CONCLUSION PEGylation of IGF-I has an impact on cell migration but not on cell viability. GENERAL SIGNIFICANCE PEG-IGF-I may differentially modulate IGF-I mediated functions that are dependent on receptor interaction as well as key extracellular proteins such as VN and IGFBPs.
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TGF-α/HA complex promotes tympanic membrane keratinocyte migration and proliferation via ErbB1 receptor. Exp Cell Res 2013; 319:790-9. [DOI: 10.1016/j.yexcr.2013.01.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 12/06/2012] [Accepted: 01/26/2013] [Indexed: 12/31/2022]
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McGovern J, Heinemann J, Burke L, Dawson R, Parker T, Upton Z, Hooper J, Manton K. Stratum basale keratinocyte expression of the cell-surface glycoprotein CDCP1 during epidermogenesis and its role in keratinocyte migration. Br J Dermatol 2013; 168:496-503. [DOI: 10.1111/bjd.12119] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Rice JJ, Martino MM, De Laporte L, Tortelli F, Briquez PS, Hubbell JA. Engineering the regenerative microenvironment with biomaterials. Adv Healthc Mater 2013. [PMID: 23184739 DOI: 10.1002/adhm.201200197] [Citation(s) in RCA: 270] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Modern synthetic biomaterials are being designed to integrate bioactive ligands within hydrogel scaffolds for cells to respond and assimilate within the matrix. These advanced biomaterials are only beginning to be used to simulate the complex spatio-temporal control of the natural healing microenvironment. With increasing understanding of the role of growth factors and cytokines and their interactions with components of the extracellular matrix, novel biomaterials are being developed that more closely mimic the natural healing environments of tissues, resulting in increased efficacy in applications of tissue repair and regeneration. Herein, the important aspects of the healing microenvironment, and how these features can be incorporated within innovative hydrogel scaffolds, are presented.
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Affiliation(s)
- Jeffrey J Rice
- Institute for Bioengineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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Hiebert PR, Granville DJ. Granzyme B in injury, inflammation, and repair. Trends Mol Med 2012; 18:732-41. [DOI: 10.1016/j.molmed.2012.09.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 09/14/2012] [Accepted: 09/27/2012] [Indexed: 01/24/2023]
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Wilgus TA. Growth Factor-Extracellular Matrix Interactions Regulate Wound Repair. Adv Wound Care (New Rochelle) 2012; 1:249-254. [PMID: 24527314 DOI: 10.1089/wound.2011.0344] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Wound healing is a process made up of several phases, including hemostasis/inflammation, proliferation, and scar formation/remodeling. An array of growth factors is produced during each of these phases that helps direct the repair process. THE PROBLEM Most of the information we have about the biological actions of growth factors are from studies examining a growth factor in isolation. However, growth factors are known to interact with the extracellular matrix (ECM), and these associations influence cell behavior. Details about these interactions within the complex and continuously changing wound environment are not well understood and are likely to be very important during repair. BASIC/CLINICAL SCIENCE ADVANCES Several types of growth factor/ECM interactions have been described that could impact wound healing. The ECM can interact directly with growth factors, offering protection from degradation and controlling bioactivity of the growth factor. Portions of the ECM can bind to growth factor receptors, and cell-ECM binding can influence growth factor receptor signaling. Growth factors can also control production and degradation of the ECM; therefore, the relationship between growth factors and ECM is bidirectional. CLINICAL CARE RELEVANCE New information about the relationship between growth factors and ECM could be used to optimize growth factor-based therapies or lead to the development of novel treatment strategies for wound care. CONCLUSION Growth factor-ECM interactions likely have a strong impact on the rate and quality of healing. A better understanding of the relationship between these classes of molecules and how it can be exploited to enhance healing is needed.
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Affiliation(s)
- Traci A. Wilgus
- Department of Pathology, The Ohio State University, Columbus, Ohio
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Upton Z, Wallace HJ, Shooter GK, van Lonkhuyzen DR, Yeoh-Ellerton S, Rayment EA, Fleming JM, Broszczak D, Queen D, Sibbald RG, Leavesley DI, Stacey MC. Human pilot studies reveal the potential of a vitronectin: growth factor complex as a treatment for chronic wounds. Int Wound J 2012; 8:522-32. [PMID: 21914133 DOI: 10.1111/j.1742-481x.2011.00859.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Several different advanced treatments have been used to improve healing in chronic wounds, but none have shown sustained success. The application of topical growth factors (GFs) has displayed some potential, but the varying results, high doses and high costs have limited their widespread adoption. Many treatments have ignored the evidence that wound healing is driven by interactions between extracellular matrix proteins and GFs, not just GFs alone. We report herein that a clinical Good Manufacturing Practice-grade vitronectin:growth factor (cVN:GF) complex is able to stimulate functions relevant to wound repair in vitro, such as enhanced cellular proliferation and migration. Furthermore, we assessed this complex as a topical wound healing agent in a single-arm pilot study using venous leg ulcers, as well as several 'difficult to heal' case studies. The cVN:GF complex was safe and re-epithelialisation was observed in all but 1 of the 30 patients in the pilot study. In addition, the case studies show that this complex may be applied to several ulcer aetiologies, such as venous leg ulcers, diabetic foot ulcers and pressure ulcers. These findings suggest that further evaluation is warranted to determine whether the cVN:GF complex may be an effective topical treatment for chronic wounds.
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Affiliation(s)
- Zee Upton
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
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Parkinson LG, Rea SM, Stevenson AW, Wood FM, Fear MW. The effect of nano-scale topography on keratinocyte phenotype and wound healing following burn injury. Tissue Eng Part A 2011; 18:703-14. [PMID: 21988618 DOI: 10.1089/ten.tea.2011.0307] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Topographic modulation of tissue response is an important consideration in the design and manufacture of a biomaterial. In developing new tissue therapies for skin, all levels of architecture, including the nanoscale need to be considered. Here we show that keratinocyte phenotype is affected by nanoscale changes in topography with cell morphology, proliferation, and migration influenced by the pore size in anodic aluminum oxide membranes. A membrane with a pore size of 300 nm, which enhanced cell phenotype in vitro, was used as a dressing to cover a partial thickness burn injury in the pig. Wounds dressed with the membrane showed evidence of advanced healing with significantly less organizing granulation tissue and more mature epidermal layers than control wounds dressed with a standard burns dressing. The results demonstrate the importance of nanoscale topography in modulating keratinocyte phenotype and skin wound healing.
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Expression analysis of wound healing genes in human periapical granulomas of progressive and stable nature. J Endod 2011; 38:185-90. [PMID: 22244633 DOI: 10.1016/j.joen.2011.09.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 09/09/2011] [Accepted: 09/19/2011] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Wound healing process involves the activation of extracellular matrix components, remodeling enzymes, cellular adhesion molecules, growth factors, cytokines and chemokines genes. However, the molecular patterns underlying the healing process at the periapical environment remain unclear. Here we hypothesized that endodontic infection might result in an imbalance in the expression of wound healing genes involved in the pathogenesis of periapical lesions. Furthermore, we suggest that differential expression of wound healing markers in active and latent granulomas could account for different clinical outcomes for such lesions. METHODS Study samples consisted of 93 periapical granulomas collected after endodontic surgeries and 24 healthy periodontal ligament tissues collected from premolars extracted for orthodontic purposes as control samples. Of these, 10 periapical granulomas and 5 healthy periapical tissues were used for expression analysis of 84 wound healing genes by using a pathway-specific real-time polymerase chain reaction array. The remaining 83 granulomas and all 24 control specimens were used to validate the obtained array data by real-time polymerase chain reaction. Observed variations in expression of wound healing genes were analyzed according to the classification of periapical granulomas as active/progressive versus inactive/stable (as determined by receptor activator for nuclear factor kappa B ligand/osteoprotegerin expression ratio). RESULTS We observed a marked increase of 5-fold or greater in SERPINE1, TIMP1, COL1A1, COL5A1, VTN, CTGF, FGF7, TGFB1, TNF, CXCL11, ITGA4, and ITGA5 genes in the periapical granulomas when compared with control samples. SERPINE1, TIMP1, COL1A1, TGFB1, and ITGA4 mRNA expression was significantly higher in inactive compared with active periapical granulomas (P < .001), whereas TNF and CXCL11 mRNA expression was higher in active lesions (P < .001). CONCLUSIONS The identification of novel gene targets that curb the progression status of periapical lesions might contribute to a more accurate diagnosis and lead to treatment modalities more conducive to endodontic success.
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Engineered insulin-like growth factor-1 for improved smooth muscle regeneration. Biomaterials 2011; 33:494-503. [PMID: 22014943 DOI: 10.1016/j.biomaterials.2011.09.088] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 09/27/2011] [Indexed: 02/05/2023]
Abstract
Insulin-like growth factor-1 (IGF-1) has been shown to induce potent mitogenic responses in various cell types, yet its sustained local delivery is still an underdeveloped domain in the clinic. We report here an engineered IGF-1 that facilitates extended local delivery to a site through its immobilization capacity within fibrin. Through recombinant fusion with a substrate sequence tag derived from α(2)-plasmin inhibitor (α(2)PI(1-8)), the resulting variant, α(2)PI(1-8)-IGF-1, was covalently incorporated into fibrin matrices during normal thrombin/factor XIIIa-mediated polymerization. Bioactivity of the variant was confirmed to be equivalent to wild type (WT) IGF-1 via IGF-1 receptor phosphorylation and cell proliferation studies in urinary tract-derived cells in 2-D. Assessment of functional retention within 3-D fibrin matrices demonstrated that incorporation of α(2)PI(1-8)-IGF-1 induced a 1.3- and 1.5-fold more robust proliferative response in smooth muscle cells (SMCs) than WT IGF-1 and negative control matrices, respectively, when release was not contained. Sustained α(2)PI(1-8)-IGF-1 availability at bladder lesion sites in vivo evoked a considerable increase in SMC proliferation and a favorable host tissue response after 28 days in rats. We conclude that the sustained local IGF-1 availability from fibrin provided by our variant protein enhances smooth muscle regeneration better than the WT form of the protein.
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