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Li D, Wang Y, Zhu S, Hu X, Liang R. Recombinant fibrous protein biomaterials meet skin tissue engineering. Front Bioeng Biotechnol 2024; 12:1411550. [PMID: 39205856 PMCID: PMC11349559 DOI: 10.3389/fbioe.2024.1411550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 07/30/2024] [Indexed: 09/04/2024] Open
Abstract
Natural biomaterials, particularly fibrous proteins, are extensively utilized in skin tissue engineering. However, their application is impeded by batch-to-batch variance, limited chemical or physical versatility, and environmental concerns. Recent advancements in gene editing and fermentation technology have catalyzed the emergence of recombinant fibrous protein biomaterials, which are gaining traction in skin tissue engineering. The modular and highly customizable nature of recombinant synthesis enables precise control over biomaterial design, facilitating the incorporation of multiple functional motifs. Additionally, recombinant synthesis allows for a transition from animal-derived sources to microbial sources, thereby reducing endotoxin content and rendering recombinant fibrous protein biomaterials more amenable to scalable production and clinical use. In this review, we provide an overview of prevalent recombinant fibrous protein biomaterials (collagens, elastin, silk proteins and their chimeric derivatives) used in skin tissue engineering (STE) and compare them with their animal-derived counterparts. Furthermore, we discuss their applications in STE, along with the associated challenges and future prospects.
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Affiliation(s)
- Dipeng Li
- Hangzhou Ninth People’s Hospital, Hangzhou, China
| | - Yirong Wang
- Hangzhou Singclean Medical Products Co., Ltd., Hangzhou, China
| | - Shan Zhu
- Hangzhou Singclean Medical Products Co., Ltd., Hangzhou, China
| | - Xuezhong Hu
- Affiliated Cixi Hospital, Wenzhou Medical University, Ningbo, China
| | - Renjie Liang
- Hangzhou Ninth People’s Hospital, Hangzhou, China
- Hangzhou Singclean Medical Products Co., Ltd., Hangzhou, China
- School of Medicine, Southeast University, Nanjing, China
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2
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Fertala J, Wang ML, Rivlin M, Beredjiklian PK, Abboud J, Arnold WV, Fertala A. Extracellular Targets to Reduce Excessive Scarring in Response to Tissue Injury. Biomolecules 2023; 13:biom13050758. [PMID: 37238628 DOI: 10.3390/biom13050758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023] Open
Abstract
Excessive scar formation is a hallmark of localized and systemic fibrotic disorders. Despite extensive studies to define valid anti-fibrotic targets and develop effective therapeutics, progressive fibrosis remains a significant medical problem. Regardless of the injury type or location of wounded tissue, excessive production and accumulation of collagen-rich extracellular matrix is the common denominator of all fibrotic disorders. A long-standing dogma was that anti-fibrotic approaches should focus on overall intracellular processes that drive fibrotic scarring. Because of the poor outcomes of these approaches, scientific efforts now focus on regulating the extracellular components of fibrotic tissues. Crucial extracellular players include cellular receptors of matrix components, macromolecules that form the matrix architecture, auxiliary proteins that facilitate the formation of stiff scar tissue, matricellular proteins, and extracellular vesicles that modulate matrix homeostasis. This review summarizes studies targeting the extracellular aspects of fibrotic tissue synthesis, presents the rationale for these studies, and discusses the progress and limitations of current extracellular approaches to limit fibrotic healing.
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Affiliation(s)
- Jolanta Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Mark L Wang
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
| | - Michael Rivlin
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
| | - Pedro K Beredjiklian
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
| | - Joseph Abboud
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
| | - William V Arnold
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
- Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA
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Tanaka HY, Nakazawa T, Enomoto A, Masamune A, Kano MR. Therapeutic Strategies to Overcome Fibrotic Barriers to Nanomedicine in the Pancreatic Tumor Microenvironment. Cancers (Basel) 2023; 15:cancers15030724. [PMID: 36765684 PMCID: PMC9913712 DOI: 10.3390/cancers15030724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/19/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023] Open
Abstract
Pancreatic cancer is notorious for its dismal prognosis. The enhanced permeability and retention (EPR) effect theory posits that nanomedicines (therapeutics in the size range of approximately 10-200 nm) selectively accumulate in tumors. Nanomedicine has thus been suggested to be the "magic bullet"-both effective and safe-to treat pancreatic cancer. However, the densely fibrotic tumor microenvironment of pancreatic cancer impedes nanomedicine delivery. The EPR effect is thus insufficient to achieve a significant therapeutic effect. Intratumoral fibrosis is chiefly driven by aberrantly activated fibroblasts and the extracellular matrix (ECM) components secreted. Fibroblast and ECM abnormalities offer various potential targets for therapeutic intervention. In this review, we detail the diverse strategies being tested to overcome the fibrotic barriers to nanomedicine in pancreatic cancer. Strategies that target the fibrotic tissue/process are discussed first, which are followed by strategies to optimize nanomedicine design. We provide an overview of how a deeper understanding, increasingly at single-cell resolution, of fibroblast biology is revealing the complex role of the fibrotic stroma in pancreatic cancer pathogenesis and consider the therapeutic implications. Finally, we discuss critical gaps in our understanding and how we might better formulate strategies to successfully overcome the fibrotic barriers in pancreatic cancer.
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Affiliation(s)
- Hiroyoshi Y. Tanaka
- Department of Pharmaceutical Biomedicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
| | - Takuya Nakazawa
- Department of Pharmaceutical Biomedicine, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
| | - Atsushi Enomoto
- Department of Pathology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya-shi 466-8550, Aichi, Japan
| | - Atsushi Masamune
- Division of Gastroenterology, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai-shi 980-8574, Miyagi, Japan
| | - Mitsunobu R. Kano
- Department of Pharmaceutical Biomedicine, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
- Correspondence:
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4
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Kim J, Baek SY, Schlecht SH, Beaulieu ML, Bussau L, Chen J, Ashton-Miller JA, Wojtys EM, Banaszak Holl MM. Anterior cruciate ligament microfatigue damage detected by collagen autofluorescence in situ. J Exp Orthop 2022; 9:74. [PMID: 35907038 PMCID: PMC9339057 DOI: 10.1186/s40634-022-00507-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/12/2022] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Certain types of repetitive sub-maximal knee loading cause microfatigue damage in the human anterior cruciate ligament (ACL) that can accumulate to produce macroscopic tissue failure. However, monitoring the progression of that ACL microfatigue damage as a function of loading cycles has not been reported. To explore the fatigue process, a confocal laser endomicroscope (CLEM) was employed to capture sub-micron resolution fluorescence images of the tissue in situ. The goal of this study was to quantify the in situ changes in ACL autofluorescence (AF) signal intensity and collagen microstructure as a function of the number of loading cycles. METHODS Three paired and four single cadaveric knees were subjected to a repeated 4 times bodyweight landing maneuver known to strain the ACL. The paired knees were used to compare the development of ACL microfatigue damage on the loaded knee after 100 consecutive loading cycles, relative to the contralateral unloaded control knee, through second harmonic generation (SHG) and AF imaging using confocal microscopy (CM). The four single knees were used for monitoring progressive ACL microfatigue damage development by AF imaging using CLEM. RESULTS The loaded knees from each pair exhibited a statistically significant increase in AF signal intensity and decrease in SHG signal intensity as compared to the contralateral control knees. Additionally, the anisotropy of the collagen fibers in the loaded knees increased as indicated by the reduced coherency coefficient. Two out of the four single knee ACLs failed during fatigue loading, and they exhibited an order of magnitude higher increase in autofluorescence intensity per loading cycle as compared to the intact knees. Of the three regions of the ACL - proximal, midsubstance and distal - the proximal region of ACL fibers exhibited the highest AF intensity change and anisotropy of fibers. CONCLUSIONS CLEM can capture changes in ACL AF and collagen microstructures in situ during and after microfatigue damage development. Results suggest a large increase in AF may occur in the final few cycles immediately prior to or at failure, representing a greater plastic deformation of the tissue. This reinforces the argument that existing microfatigue damage can accumulate to induce bulk mechanical failure in ACL injuries. The variation in fiber organization changes in the ACL regions with application of load is consistent with the known differences in loading distribution at the ACL femoral enthesis.
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Affiliation(s)
- Jinhee Kim
- Department of Chemical & Biological Engineering, Monash University, Melbourne, Australia.,Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - So Young Baek
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Stephen H Schlecht
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mélanie L Beaulieu
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | | | - Junjie Chen
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | | | - Edward M Wojtys
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
| | - Mark M Banaszak Holl
- Department of Chemical & Biological Engineering, Monash University, Melbourne, Australia.
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Jensen MM, Bonna A, Frederiksen SJ, Hamaia SW, Højrup P, Farndale RW, Karring H. Tyrosine-sulfated dermatopontin shares multiple binding sites and recognition determinants on triple-helical collagens with proteins implicated in cell adhesion and collagen folding, fibrillogenesis, cross-linking, and degradation. BIOCHIMICA ET BIOPHYSICA ACTA. PROTEINS AND PROTEOMICS 2022; 1870:140771. [PMID: 35306228 DOI: 10.1016/j.bbapap.2022.140771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/09/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
Dermatopontin (DPT), a small extracellular matrix protein that stimulates collagen fibrillogenesis, contains sulfotyrosine residues but neither its level of sulfation nor its binding sites on fibrillar collagens are known. Here, we discovered that DPT is present in a relatively high mass concentration (~ 0.02%) in porcine corneal stroma, from which we purified five DPT charge variants (A-E) containing up to six sulfations. The major variant (C), containing four sulfotyrosine residues, was used to locate binding sites for DPT on triple-helical collagens II and III using the Collagen Toolkits. DPT-binding loci included the triple helix crosslinking sites and collagenase cleavage site. We find that strong DPT-binding sites on triple-helical collagen comprise an arginine-rich, positively-charged sequence that also contains hydrophobic residues. This collagen-binding signature of DPT is similar to that of the chaperone HSP47. Thus, we propose that DPT assumes the role of HSP47 as a collagen chaperone during and after the secretion. Peptide II-44, harbouring the conserved collagenase cleavage site, shows the strongest DPT-binding of the Collagen Toolkit II peptides. Substituting any of the three arginine residues (R) with alanine in the sequence GLAGQRGIVGLOGQRGER of II-44 resulted in almost complete loss of DPT binding. Since osteogenesis imperfecta, spondyloepiphyseal dysplasia, and spondyloepimetaphyseal dysplasia congenita are associated with missense mutations that substitute the corresponding arginine residues in collagens alpha-1(I) and alpha-1(II), we suggest that disrupted DPT binding to fibrillar collagens may contribute to these connective tissue disorders. In conclusion, the present work provides a cornerstone for further elucidation of the role of DPT.
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Affiliation(s)
- Morten M Jensen
- Department of Green Technology, University of Southern Denmark, 5230 Odense, Denmark
| | - Arkadiusz Bonna
- Department of Biochemistry, Downing Site, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Sigurd J Frederiksen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense, Denmark
| | - Samir W Hamaia
- Department of Biochemistry, Downing Site, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Peter Højrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense, Denmark
| | - Richard W Farndale
- Department of Biochemistry, Downing Site, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Henrik Karring
- Department of Green Technology, University of Southern Denmark, 5230 Odense, Denmark.
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Maher MK, White JF, Glattauer V, Yue Z, Hughes TC, Ramshaw JAM, Wallace GG. Variation in Hydrogel Formation and Network Structure for Telo-, Atelo- and Methacrylated Collagens. Polymers (Basel) 2022; 14:polym14091775. [PMID: 35566947 PMCID: PMC9103955 DOI: 10.3390/polym14091775] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/20/2022] [Accepted: 04/23/2022] [Indexed: 01/27/2023] Open
Abstract
As the most abundant protein in the extracellular matrix, collagen has become widely studied in the fields of tissue engineering and regenerative medicine. Of the various collagen types, collagen type I is the most commonly utilised in laboratory studies. In tissues, collagen type I forms into fibrils that provide an extended fibrillar network. In tissue engineering and regenerative medicine, little emphasis has been placed on the nature of the network that is formed. Various factors could affect the network structure, including the method used to extract collagen from native tissue, since this may remove the telopeptides, and the nature and extent of any chemical modifications and crosslinking moieties. The structure of any fibril network affects cellular proliferation and differentiation, as well as the overall modulus of hydrogels. In this study, the network-forming properties of two distinct forms of collagen (telo- and atelo-collagen) and their methacrylated derivatives were compared. The presence of the telopeptides facilitated fibril formation in the unmodified samples, but this benefit was substantially reduced by subsequent methacrylation, leading to a loss in the native self-assembly potential. Furthermore, the impact of the methacrylation of the collagen, which enables rapid crosslinking and makes it suitable for use in 3D printing, was investigated. The crosslinking of the methacrylated samples (both telo- and atelo-) was seen to improve the fibril-like network compared to the non-crosslinked samples. This contrasted with the samples of methacrylated gelatin, which showed little, if any, fibrillar or ordered network structure, regardless of whether they were crosslinked.
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Affiliation(s)
- Malachy Kevin Maher
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2519, Australia; (M.K.M.); (Z.Y.)
- CSIRO Manufacturing, Clayton, Melbourne, VIC 3168, Australia; (J.F.W.); (V.G.); (T.C.H.)
| | - Jacinta F. White
- CSIRO Manufacturing, Clayton, Melbourne, VIC 3168, Australia; (J.F.W.); (V.G.); (T.C.H.)
| | - Veronica Glattauer
- CSIRO Manufacturing, Clayton, Melbourne, VIC 3168, Australia; (J.F.W.); (V.G.); (T.C.H.)
| | - Zhilian Yue
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2519, Australia; (M.K.M.); (Z.Y.)
| | - Timothy C. Hughes
- CSIRO Manufacturing, Clayton, Melbourne, VIC 3168, Australia; (J.F.W.); (V.G.); (T.C.H.)
| | - John A. M. Ramshaw
- Department of Surgery, St. Vincent’s Hospital, University of Melbourne, Melbourne, VIC 3065, Australia;
| | - Gordon G. Wallace
- Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2519, Australia; (M.K.M.); (Z.Y.)
- Correspondence: ; Tel.: +61-(0)-2-4221-3127
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Tanaka T, Moriya K, Tsunenaga M, Yanagawa T, Morita H, Minowa T, Tagawa YI, Hanagata N, Inagaki Y, Ikoma T. Visualized procollagen Iα1 demonstrates the intracellular processing of propeptides. Life Sci Alliance 2022; 5:5/5/e202101060. [PMID: 35181633 PMCID: PMC8860094 DOI: 10.26508/lsa.202101060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 01/26/2022] [Accepted: 01/26/2022] [Indexed: 12/26/2022] Open
Abstract
Procollagen Iα1 with two tags reveals the different fates of processed propeptides, the rate-limiting step in collagen secretion, and a link between defects in intracellular processing and diseases. The processing of type I procollagen is essential for fibril formation; however, the steps involved remain controversial. We constructed a live cell imaging system by inserting fluorescent proteins into type I pre-procollagen α1. Based on live imaging and immunostaining, the C-propeptide is intracellularly cleaved at the perinuclear region, including the endoplasmic reticulum, and subsequently accumulates at the upside of the cell. The N-propeptide is also intracellularly cleaved, but is transported with the repeating structure domain of collagen into the extracellular region. This system makes it possible to detect relative increases and decreases in collagen secretion in a high-throughput manner by assaying fluorescence in the culture medium, and revealed that the rate-limiting step for collagen secretion occurs after the synthesis of procollagen. In the present study, we identified a defect in procollagen processing in activated hepatic stellate cells, which secrete aberrant collagen fibrils. The results obtained demonstrated the intracellular processing of type I procollagen, and revealed a link between dysfunctional processing and diseases such as hepatic fibrosis.
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Affiliation(s)
- Toshiaki Tanaka
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, Japan
| | - Koji Moriya
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, Japan
| | - Makoto Tsunenaga
- Shiseido Global Innovation Center, 1-2-11 Takashima, Yokohama, Japan
| | - Takayo Yanagawa
- School of Medicine, Tokai University, 143 Shimo-kasuya, Isehara, Japan
| | - Hiromi Morita
- Nanotechnology Innovation Station, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Japan
| | - Takashi Minowa
- Nanotechnology Innovation Station, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Japan
| | - Yoh-Ichi Tagawa
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama, Japan
| | - Nobutaka Hanagata
- Nanotechnology Innovation Station, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Japan
| | - Yutaka Inagaki
- School of Medicine, Tokai University, 143 Shimo-kasuya, Isehara, Japan
| | - Toshiyuki Ikoma
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
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Revell CK, Jensen OE, Shearer T, Lu Y, Holmes DF, Kadler KE. Collagen fibril assembly: New approaches to unanswered questions. Matrix Biol Plus 2021; 12:100079. [PMID: 34381990 PMCID: PMC8334717 DOI: 10.1016/j.mbplus.2021.100079] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 12/22/2022] Open
Abstract
Collagen fibrils are essential for metazoan life. They are the largest, most abundant, and most versatile protein polymers in animals, where they occur in the extracellular matrix to form the structural basis of tissues and organs. Collagen fibrils were first observed at the turn of the 20th century. During the last 40 years, the genes that encode the family of collagens have been identified, the structure of the collagen triple helix has been solved, the many enzymes involved in the post-translational modifications of collagens have been identified, mutations in the genes encoding collagen and collagen-associated proteins have been linked to heritable disorders, and changes in collagen levels have been associated with a wide range of diseases, including cancer. Yet despite extensive research, a full understanding of how cells assemble collagen fibrils remains elusive. Here, we review current models of collagen fibril self-assembly, and how cells might exert control over the self-assembly process to define the number, length and organisation of fibrils in tissues.
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Affiliation(s)
- Christopher K. Revell
- Department of Mathematics, University of Manchester, Alan Turing Building, Oxford Road, Manchester M13 9PL, UK
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
| | - Oliver E. Jensen
- Department of Mathematics, University of Manchester, Alan Turing Building, Oxford Road, Manchester M13 9PL, UK
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
| | - Tom Shearer
- Department of Mathematics, University of Manchester, Alan Turing Building, Oxford Road, Manchester M13 9PL, UK
- Department of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Yinhui Lu
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
| | - David F. Holmes
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
| | - Karl E. Kadler
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
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9
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Shaping collagen for engineering hard tissues: Towards a printomics approach. Acta Biomater 2021; 131:41-61. [PMID: 34192571 DOI: 10.1016/j.actbio.2021.06.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/21/2022]
Abstract
Hard tissue engineering has evolved over the past decades, with multiple approaches being explored and developed. Despite the rapid development and success of advanced 3D cell culture, 3D printing technologies and material developments, a gold standard approach to engineering and regenerating hard tissue substitutes such as bone, dentin and cementum, has not yet been realised. One such strategy that differs from conventional regenerative medicine approach of other tissues, is the in vitro mineralisation of collagen templates in the absence of cells. Collagen is the most abundant protein within the human body and forms the basis of all hard tissues. Once mineralised, collagen provides important support and protection to humans, for example in the case of bone tissue. Multiple in vitro fabrication strategies and mineralisation approaches have been developed and their success in facilitating mineral deposition on collagen to achieve bone-like scaffolds evaluated. Critical to the success of such fabrication and biomineralisation approaches is the collagen template, and its chemical composition, organisation, and density. The key factors that influence such properties are the collagen processing and fabrication techniques utilised to create the template, and the mineralisation strategy employed to deposit mineral on and throughout the templates. However, despite its importance, relatively little attention has been placed on these two critical factors. Here, we critically examine the processing, fabrication and mineralisation strategies that have been used to mineralise collagen templates, and offer insights and perspectives on the most promising strategies for creating mineralised collagen scaffolds. STATEMENT OF SIGNIFICANCE: In this review, we highlight the critical need to fabricate collagen templates with advanced processing techniques, in a manner that achieves biomimicry of the hierarchical collagen structure, prior to utilising in vitro mineralisation strategies. To this end, we focus on the initial collagen that is selected, the extraction techniques used and the native fibril forming potential retained to create reconstituted collagen scaffolds. This review synthesises current best practises in material sourcing, processing, mineralisation strategies and fabrication techniques, and offers insights into how these can best be exploited in future studies to successfully mineralise collagen templates.
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10
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Xing Y, Varghese B, Ling Z, Kar AS, Reinoso Jacome E, Ren X. Extracellular Matrix by Design: Native Biomaterial Fabrication and Functionalization to Boost Tissue Regeneration. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2021. [DOI: 10.1007/s40883-021-00210-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Musiime M, Chang J, Hansen U, Kadler KE, Zeltz C, Gullberg D. Collagen Assembly at the Cell Surface: Dogmas Revisited. Cells 2021; 10:662. [PMID: 33809734 PMCID: PMC8002325 DOI: 10.3390/cells10030662] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 12/12/2022] Open
Abstract
With the increased awareness about the importance of the composition, organization, and stiffness of the extracellular matrix (ECM) for tissue homeostasis, there is a renewed need to understand the details of how cells recognize, assemble and remodel the ECM during dynamic tissue reorganization events. Fibronectin (FN) and fibrillar collagens are major proteins in the ECM of interstitial matrices. Whereas FN is abundant in cell culture studies, it is often only transiently expressed in the acute phase of wound healing and tissue regeneration, by contrast fibrillar collagens form a persistent robust scaffold in healing and regenerating tissues. Historically fibrillar collagens in interstitial matrices were seen merely as structural building blocks. Cell anchorage to the collagen matrix was thought to be indirect and occurring via proteins like FN and cell surface-mediated collagen fibrillogenesis was believed to require a FN matrix. The isolation of four collagen-binding integrins have challenged this dogma, and we now know that cells anchor directly to monomeric forms of fibrillar collagens via the α1β1, α2β1, α10β1 and α11β1 integrins. The binding of these integrins to the mature fibrous collagen matrices is more controversial and depends on availability of integrin-binding sites. With increased awareness about the importance of characterizing the total integrin repertoire on cells, including the integrin collagen receptors, the idea of an absolute dependence on FN for cell-mediated collagen fibrillogenesis needs to be re-evaluated. We will summarize data suggesting that collagen-binding integrins in vitro and in vivo are perfectly well suited for nucleating and supporting collagen fibrillogenesis, independent of FN.
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Affiliation(s)
- Moses Musiime
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, N-5009 Bergen, Norway; (M.M.); (C.Z.)
| | - Joan Chang
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (J.C.); (K.E.K.)
| | - Uwe Hansen
- Institute for Musculoskeletal Medicine, University Hospital of Münster, 48149 Münster, Germany;
| | - Karl E. Kadler
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (J.C.); (K.E.K.)
| | - Cédric Zeltz
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, N-5009 Bergen, Norway; (M.M.); (C.Z.)
| | - Donald Gullberg
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, N-5009 Bergen, Norway; (M.M.); (C.Z.)
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12
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Xu Y, Kirchner M. Collagen Mimetic Peptides. Bioengineering (Basel) 2021; 8:5. [PMID: 33466358 PMCID: PMC7824840 DOI: 10.3390/bioengineering8010005] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/24/2020] [Accepted: 12/31/2020] [Indexed: 12/20/2022] Open
Abstract
Since their first synthesis in the late 1960s, collagen mimetic peptides (CMPs) have been used as a molecular tool to study collagen, and as an approach to develop novel collagen mimetic biomaterials. Collagen, a major extracellular matrix (ECM) protein, plays vital roles in many physiological and pathogenic processes. Applications of CMPs have advanced our understanding of the structure and molecular properties of a collagen triple helix-the building block of collagen-and the interactions of collagen with important molecular ligands. The accumulating knowledge is also paving the way for developing novel CMPs for biomedical applications. Indeed, for the past 50 years, CMP research has been a fast-growing, far-reaching interdisciplinary field. The major development and achievement of CMPs were documented in a few detailed reviews around 2010. Here, we provided a brief overview of what we have learned about CMPs-their potential and their limitations. We focused on more recent developments in producing heterotrimeric CMPs, and CMPs that can form collagen-like higher order molecular assemblies. We also expanded the traditional view of CMPs to include larger designed peptides produced using recombinant systems. Studies using recombinant peptides have provided new insights on collagens and promoted progress in the development of collagen mimetic fibrillar self-assemblies.
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Affiliation(s)
- Yujia Xu
- Department of Chemistry, Hunter College of the City University of New York, 695 Park Ave., New York, NY 10065, USA;
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13
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Collagen Structure-Function Mapping Informs Applications for Regenerative Medicine. Bioengineering (Basel) 2020; 8:bioengineering8010003. [PMID: 33383610 PMCID: PMC7824244 DOI: 10.3390/bioengineering8010003] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/21/2022] Open
Abstract
Type I collagen, the predominant protein of vertebrates, assembles into fibrils that orchestrate the form and function of bone, tendon, skin, and other tissues. Collagen plays roles in hemostasis, wound healing, angiogenesis, and biomineralization, and its dysfunction contributes to fibrosis, atherosclerosis, cancer metastasis, and brittle bone disease. To elucidate the type I collagen structure-function relationship, we constructed a type I collagen fibril interactome, including its functional sites and disease-associated mutations. When projected onto an X-ray diffraction model of the native collagen microfibril, data revealed a matrix interaction domain that assumes structural roles including collagen assembly, crosslinking, proteoglycan (PG) binding, and mineralization, and the cell interaction domain supporting dynamic aspects of collagen biology such as hemostasis, tissue remodeling, and cell adhesion. Our type III collagen interactome corroborates this model. We propose that in quiescent tissues, the fibril projects a structural face; however, tissue injury releases blood into the collagenous stroma, triggering exposure of the fibrils' cell and ligand binding sites crucial for tissue remodeling and regeneration. Applications of our research include discovery of anti-fibrotic antibodies and elucidating their interactions with collagen, and using insights from our angiogenesis studies and collagen structure-function model to inform the design of super-angiogenic collagens and collagen mimetics.
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14
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Fertala A. Three Decades of Research on Recombinant Collagens: Reinventing the Wheel or Developing New Biomedical Products? Bioengineering (Basel) 2020; 7:E155. [PMID: 33276472 PMCID: PMC7712652 DOI: 10.3390/bioengineering7040155] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/16/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023] Open
Abstract
Collagens provide the building blocks for diverse tissues and organs. Furthermore, these proteins act as signaling molecules that control cell behavior during organ development, growth, and repair. Their long half-life, mechanical strength, ability to assemble into fibrils and networks, biocompatibility, and abundance from readily available discarded animal tissues make collagens an attractive material in biomedicine, drug and food industries, and cosmetic products. About three decades ago, pioneering experiments led to recombinant human collagens' expression, thereby initiating studies on the potential use of these proteins as substitutes for the animal-derived collagens. Since then, scientists have utilized various systems to produce native-like recombinant collagens and their fragments. They also tested these collagens as materials to repair tissues, deliver drugs, and serve as therapeutics. Although many tests demonstrated that recombinant collagens perform as well as their native counterparts, the recombinant collagen technology has not yet been adopted by the biomedical, pharmaceutical, or food industry. This paper highlights recent technologies to produce and utilize recombinant collagens, and it contemplates their prospects and limitations.
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Affiliation(s)
- Andrzej Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA 19107, USA
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15
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Bourgot I, Primac I, Louis T, Noël A, Maquoi E. Reciprocal Interplay Between Fibrillar Collagens and Collagen-Binding Integrins: Implications in Cancer Progression and Metastasis. Front Oncol 2020; 10:1488. [PMID: 33014790 PMCID: PMC7461916 DOI: 10.3389/fonc.2020.01488] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 07/13/2020] [Indexed: 12/14/2022] Open
Abstract
Cancers are complex ecosystems composed of malignant cells embedded in an intricate microenvironment made of different non-transformed cell types and extracellular matrix (ECM) components. The tumor microenvironment is governed by constantly evolving cell-cell and cell-ECM interactions, which are now recognized as key actors in the genesis, progression and treatment of cancer lesions. The ECM is composed of a multitude of fibrous proteins, matricellular-associated proteins, and proteoglycans. This complex structure plays critical roles in cancer progression: it functions as the scaffold for tissues organization and provides biochemical and biomechanical signals that regulate key cancer hallmarks including cell growth, survival, migration, differentiation, angiogenesis, and immune response. Cells sense the biochemical and mechanical properties of the ECM through specialized transmembrane receptors that include integrins, discoidin domain receptors, and syndecans. Advanced stages of several carcinomas are characterized by a desmoplastic reaction characterized by an extensive deposition of fibrillar collagens in the microenvironment. This compact network of fibrillar collagens promotes cancer progression and metastasis, and is associated with low survival rates for cancer patients. In this review, we highlight how fibrillar collagens and their corresponding integrin receptors are modulated during cancer progression. We describe how the deposition and alignment of collagen fibers influence the tumor microenvironment and how fibrillar collagen-binding integrins expressed by cancer and stromal cells critically contribute in cancer hallmarks.
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Affiliation(s)
| | | | | | | | - Erik Maquoi
- Laboratory of Tumor and Development Biology, GIGA-Cancer, University of Liège, Liège, Belgium
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16
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N-Vanillylnonanamide, a natural product from capsicum oleoresin, as potential inhibitor of collagen fibrillation. Int J Biol Macromol 2020; 156:1146-1152. [DOI: 10.1016/j.ijbiomac.2019.11.148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 12/17/2022]
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17
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McCluskey AR, Hung KSW, Marzec B, Sindt JO, Sommerdijk NAJM, Camp PJ, Nudelman F. Disordered Filaments Mediate the Fibrillogenesis of Type I Collagen in Solution. Biomacromolecules 2020; 21:3631-3643. [DOI: 10.1021/acs.biomac.0c00667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew R. McCluskey
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Kennes S. W. Hung
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Bartosz Marzec
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Julien O. Sindt
- EPCC, University of Edinburgh, Bayes Centre, 47 Potterrow, Edinburgh EH8 9BT, U.K
| | - Nico A. J. M. Sommerdijk
- Department of Biochemistry, Radboud Institute of Molecular Life Sciences, Radboud University Medical Center, Geert Grooteplein, 6525 GA Nijmegen, The Netherlands
| | - Philip J. Camp
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
| | - Fabio Nudelman
- EaStCHEM, School of Chemistry, The King’s Buildings, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K
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18
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Wang Z, Ustriyana P, Chen K, Zhao W, Xu Z, Sahai N. Toward the Understanding of Small Protein-Mediated Collagen Intrafibrillar Mineralization. ACS Biomater Sci Eng 2020; 6:4247-4255. [PMID: 33463336 DOI: 10.1021/acsbiomaterials.0c00386] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The design of improved materials for orthopedic implants and bone tissue engineering scaffolds relies on materials mimicking the properties of bone. Calcium phosphate (Ca-PO4)-mineralized collagen fibrils arranged in a characteristic hierarchical structure constitute the building blocks of mineralized vertebrate tissues and control their biomechanical and biochemical properties. Large, flexible, acidic noncollagenous proteins (ANCPs) have been shown to influence collagen mineralization but little is known about mineralization mechanisms with the aid of small proteins. Osteocalcin (OCN) is a small, highly structured biomolecule known as a multifunctional hormone in its undercarboxylated form. Here, we examined the potential mechanism of collagen intrafibrillar mineralization in vitro mediated by OCN as a model protein. Rapid and random extrafibrillar mineralization of flakey Ca-PO4 particles was observed by transmission electron microscopy mainly on the outer surfaces of collagen fibrils of a preformed collagen scaffold in the absence of the protein. In contrast, the protein stabilized hydrated, spherical nanoclusters of Ca-PO4 on the outer surface of the fibrils, thereby retarding extrafibrillar mineralization. The nanoclusters then infiltrated the fibrils resulting in intrafibrillar mineralization with HAP crystals aligned with the fibrils. This mechanism is similar to that observed for unstructured ANCPs. Results of fibrillogenesis and immunogold labeling studies showed that OCN was associated primarily with the fibrils, consistent with ex vivo studies on mineralizing turkey tendon. The present findings contribute to expanding our understanding of collagen intrafibrillar mineralization and provide insight into design synthetic macromolecular matrices for orthopedic implants and bone regeneration.
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19
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Xie Q, Hou D, Chang J, Xu Z, Zeng Q, Wang Z, Chen Y. Beyond temperature: controlling collagen fibrillogenesis under physiological conditions via interaction with cucurbit[7]uril. Chem Commun (Camb) 2020; 56:4946-4949. [PMID: 32239047 DOI: 10.1039/d0cc01444c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Under physiological ionic strength and pH, temperature has long been appreciated as the only stimulus that can be applied to induce in vitro self-assembly of tropocollagen. Here, we report a second, mechanistically new control strategy that uses non-covalent and selective binding of cucurbit[7]uril, a macrocyclic cavitand, with midchain aromatic residues on the tropocollagen surface. This strategy directly demonstrates the decisive role hydrophobic interactions play in collagen fibrillogenesis. It also points the way to the temporally-controllable formation of collagen fibrils in vivo that is highly desirable, yet challenging, in some biomedical scenarios.
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Affiliation(s)
- Qiuping Xie
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Delong Hou
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Jinming Chang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637009, P. R. China
| | - Zhou Xu
- School of Life Science and Food Engineering, Yibin University, Yibin 644007, P. R. China
| | - Qi Zeng
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Zhonghui Wang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Yi Chen
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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20
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Lin J, Shi Y, Men Y, Wang X, Ye J, Zhang C. Mechanical Roles in Formation of Oriented Collagen Fibers. TISSUE ENGINEERING PART B-REVIEWS 2020; 26:116-128. [PMID: 31801418 DOI: 10.1089/ten.teb.2019.0243] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Collagen is a structural protein that is widely present in vertebrates, being usually distributed in tissues in the form of fibers. In living organisms, fibers are organized in different orientations in various tissues. As the structural base in connective tissue and load-bearing tissue, the orientation of collagen fibers plays an extremely important role in the mechanical properties and physiological and biochemical functions. The study on mechanics role in formation of oriented collagen fibers enables us to understand how discrete cells use limited molecular materials to create tissues with different structures, thereby promoting our understanding of the mechanism of tissue formation from scratch, from invisible to tangible. However, the current understanding of the mechanism of fiber orientation is still insufficient. In addition, existing fabrication methods of oriented fibers are varied and involve interdisciplinary study, and the achievements of each experiment are favorable to the construction and improvement of the fiber orientation theory. To this end, this review focuses on the preparation methods of oriented fibers and proposes a model explaining the formation process of oriented fibers in tendons based on the existing fiber theory. Impact statement As the structural base in connective tissue and load-bearing tissue, the orientation of collagen fibers plays an extremely important role in the mechanical properties and physiological and biochemical functions. However, the current understanding of the mechanism of fiber orientation is still insufficient, which is greatly responsible for the challenge of functional tissue repair and regeneration. Understanding the mechanism of fiber orientation can promote the successful application of fiber orientation scaffolds in tissue repair and regeneration, as well as providing an insight for the mechanism of tissue histomorphology.
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Affiliation(s)
- Jiexiang Lin
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, P.R. China
| | - Yanping Shi
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, P.R. China
| | - Yutao Men
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, P.R. China
| | - Xin Wang
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, P.R. China
| | - Jinduo Ye
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, P.R. China
| | - Chunqiu Zhang
- Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control, National Demonstration Center for Experimental Mechanical and Electrical Engineering Education, School of Mechanical Engineering, Tianjin University of Technology, Tianjin, P.R. China
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21
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Sethuraman S, Rajendran K. Is Gum Arabic a Good Emulsifier Due to CH...π Interactions? How Urea Effectively Destabilizes the Hydrophobic CH...π Interactions in the Proteins of Gum Arabic than Amides and GuHCl? ACS OMEGA 2019; 4:16418-16428. [PMID: 31616820 PMCID: PMC6787882 DOI: 10.1021/acsomega.9b01980] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/11/2019] [Indexed: 05/13/2023]
Abstract
The photophysical studies of gum arabic (GA) in the presence of urea, 1,3-dimethylurea (DMU), tetramethylurea (TMU), guanidine hydrochloride (GuHCl), formamide (FA), acetamide (AA), and dimethyl formamide (DMF) were carried out by monitoring the emission, three-dimensional emission contour, and time-correlated fluorescence lifetime techniques. On addition of only 1 × 10-3 M urea, 75.0% of the fluorescence of GA is quenched, while the same occurs in GuHCl at 3.0 M. FA quenched 50% of the fluorescence of GA at 5.0 M. However, DMU, TMU, AA, and DMF resulted in a fluorescence enhancement. The unusual fluorescence trends reveal the existence of CH...π interactions in the proteins of GA. The experimental results and the structural aspects of proteins in GA led us to propose that the aggregation of polyproline helices in GA, through several CH...π interactions, would have a major role to play in the emulsification mechanism of GA.
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Affiliation(s)
- Sowmiya Sethuraman
- Department of Chemistry, D.G. Vaishnav College, Autonomous (affiliated to the
University of Madras (Chennai)), 833, Periyar EVR Salai, Arumbakkam, Chennai 600 106, Tamil Nadu, India
| | - Kumaran Rajendran
- Department of Chemistry, D.G. Vaishnav College, Autonomous (affiliated to the
University of Madras (Chennai)), 833, Periyar EVR Salai, Arumbakkam, Chennai 600 106, Tamil Nadu, India
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22
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Sharma S, Kataria M, Kumar M, Bhalla V. Entropically Favoured Assembly of Pyrazine‐Based Helical Fibers into Superstructures: Achiral/ Chiral Guest‐Induced Chirality Transformation. Angew Chem Int Ed Engl 2019; 58:16203-16209. [DOI: 10.1002/anie.201908669] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Sonia Sharma
- Department of Chemistry UGC Sponsored Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Meenal Kataria
- Department of Chemistry UGC Sponsored Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Manoj Kumar
- Department of Chemistry UGC Sponsored Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Vandana Bhalla
- Department of Chemistry UGC Sponsored Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
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23
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Sharma S, Kataria M, Kumar M, Bhalla V. Entropically Favoured Assembly of Pyrazine‐Based Helical Fibers into Superstructures: Achiral/ Chiral Guest‐Induced Chirality Transformation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908669] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sonia Sharma
- Department of ChemistryUGC Sponsored Centre for Advanced Studies-IIGuru Nanak Dev University Amritsar 143005 Punjab India
| | - Meenal Kataria
- Department of ChemistryUGC Sponsored Centre for Advanced Studies-IIGuru Nanak Dev University Amritsar 143005 Punjab India
| | - Manoj Kumar
- Department of ChemistryUGC Sponsored Centre for Advanced Studies-IIGuru Nanak Dev University Amritsar 143005 Punjab India
| | - Vandana Bhalla
- Department of ChemistryUGC Sponsored Centre for Advanced Studies-IIGuru Nanak Dev University Amritsar 143005 Punjab India
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24
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Rasheeda K, Samyuktha D, Fathima NN. Self-association of type I collagen directed by thymoquinone through alteration of molecular forces. Int J Biol Macromol 2019; 140:614-620. [PMID: 31446103 DOI: 10.1016/j.ijbiomac.2019.08.190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/24/2019] [Accepted: 08/21/2019] [Indexed: 01/18/2023]
Abstract
Type I collagen is a vital structural component of the extracellular matrix providing the connective tissues with biomechanical support. One of the interesting properties of collagen is to self-associate into fibrils. The present work aims to direct the self-assembly of collagen through different molecular forces, which are tuned on the addition of thymoquinone a well-known phytochemical. A change in relative viscosity and stress of collagen-thymoquinone blends influenced the interfibrillar aggregates around its hydration shell. Further, secondary structural integrity was studied via cotton curve effect, and vibrational frequency shifts showed a characteristic interaction of thymoquinone at the N-terminal residues of the triple helix. Finally, the spontaneous self-association of fibrils was tracked by calculating the rate of fibril growth kinetics, which potentially decreased with increase in thymoquinone concentration. The fibrils were eventually visualized under the high resolution-scanning microscope showing morphological variations. Therefore, such a protein-phytochemical interaction may tend to play with the hydration network of collagen and covalently interact with its imino acid residues. It may be speculated that such an inhibitory process portrayed by thymoquinone may have a fortune in the targeted and sustainable delivery to the site of action for certain diseases, which includes collagen accumulation. Moreover, its directed assembly could be utilized for designing templates as in manipulating the collagen as a nanoporous membrane to make nanofibers and further tuned by small molecules for nanoparticle synthesis application.
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Affiliation(s)
- K Rasheeda
- Inorganic and Physical Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
| | - D Samyuktha
- Inorganic and Physical Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India
| | - N Nishad Fathima
- Inorganic and Physical Chemical Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600 020, India.
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25
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Que RA, Crakes DR, Abdulhadi F, Niu C, Da Silva NA, Wang S. Tailoring Collagen to Engineer the Cellular Microenvironment. Biotechnol J 2018; 13:e1800140. [DOI: 10.1002/biot.201800140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/14/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Richard A. Que
- Department of Biomedical EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Dale R. Crakes
- Department of Biomedical EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Faten Abdulhadi
- Department of Chemical and Biomolecular EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Chun‐Hao Niu
- Department of Chemical and Biomolecular EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Nancy A. Da Silva
- Department of Biomedical EngineeringUniversity of CaliforniaIrvineCA92697USA
- Department of Chemical and Biomolecular EngineeringUniversity of CaliforniaIrvineCA92697USA
| | - Szu‐Wen Wang
- Department of Biomedical EngineeringUniversity of CaliforniaIrvineCA92697USA
- Department of Chemical and Biomolecular EngineeringUniversity of CaliforniaIrvineCA92697USA
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26
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Jayamani J, Naisini A, Madhan B, Shanmugam G. Ferulic acid, a natural phenolic compound, as a potential inhibitor for collagen fibril formation and its propagation. Int J Biol Macromol 2018; 113:277-284. [DOI: 10.1016/j.ijbiomac.2018.01.225] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 01/24/2018] [Accepted: 01/30/2018] [Indexed: 01/09/2023]
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27
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Tashima T, Nagatoishi S, Caaveiro JMM, Nakakido M, Sagara H, Kusano-Arai O, Iwanari H, Mimuro H, Hamakubo T, Ohnuma SI, Tsumoto K. Molecular basis for governing the morphology of type-I collagen fibrils by Osteomodulin. Commun Biol 2018; 1:33. [PMID: 30271919 PMCID: PMC6123635 DOI: 10.1038/s42003-018-0038-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/23/2018] [Indexed: 02/07/2023] Open
Abstract
Small leucine-rich repeat proteoglycan (SLRP) proteins have an important role in the organization of the extracellular matrix, especially in the formation of collagen fibrils. However, the mechanism governing the shape of collagen fibrils is poorly understood. Here, we report that the protein Osteomodulin (OMD) of the SLRP family is a monomeric protein in solution that interacts with type-I collagen. This interaction is dominated by weak electrostatic forces employing negatively charged residues of OMD, in particular Glu284 and Glu303, and controlled by entropic factors. The protein OMD establishes a fast-binding equilibrium with collagen, where OMD may engage not only with individual collagen molecules, but also with the growing fibrils. This weak electrostatic interaction is carefully balanced so it modulates the shape of the fibrils without compromising their viability. Takumi Tashima and colleagues provide structural insights into how collagen fibrils are shaped by Osteomodulin. Osteomodulin keeps a fast-binding equilibrium with the collagen fibrils to slow down its growth, promoting the formation of uniform, intact collagen fibrils.
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Affiliation(s)
- Takumi Tashima
- Department of Chemistry & Biotechnology, School of Engineering, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Satoru Nagatoishi
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, 108-8639, Japan.,Project Division of Advanced Biopharmaceutical Science, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.,Medical Proteomics Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Jose M M Caaveiro
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, 108-8639, Japan.,Medical Proteomics Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.,Laboratory of Global Healthcare, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Makoto Nakakido
- Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, 108-8639, Japan.,Medical Proteomics Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Hiroshi Sagara
- Medical Proteomics Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Osamu Kusano-Arai
- Quantitative Biology and Medicine, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo, 153-8904, Japan
| | - Hiroko Iwanari
- Quantitative Biology and Medicine, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo, 153-8904, Japan
| | - Hitomi Mimuro
- Department of Infection Microbiology, Research Institute for Microbial Diseases, Osaka University, Osaka, 565-0871, Japan.,Department of Infectious Diseases Control, International Research Center for Infectious Diseases, Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Takao Hamakubo
- Quantitative Biology and Medicine, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo, 153-8904, Japan
| | - Shin-Ichi Ohnuma
- Institute of Ophthalmology, University College London (UCL), London, EC1V 9EL, UK
| | - Kouhei Tsumoto
- Department of Chemistry & Biotechnology, School of Engineering, The University of Tokyo, Tokyo, 108-8639, Japan. .,Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, 108-8639, Japan. .,Medical Proteomics Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.
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Biomaterial surface energy-driven ligand assembly strongly regulates stem cell mechanosensitivity and fate on very soft substrates. Proc Natl Acad Sci U S A 2018; 115:4631-4636. [PMID: 29666253 PMCID: PMC5939054 DOI: 10.1073/pnas.1704543115] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Cell instructive biomaterial cues are a major topic of interest in both basic and applied research. In this work, we clarify how surface energy of soft biomaterials can dramatically affect mesenchymal stem cell receptor recruitment and downstream signaling related to cell fate. We elucidate how surface protein self-assembly and the resulting surface topology can act to steer mechanotransduction and related biological response of attached cells. These findings fill a critical gap in our basic understanding of cell–biomaterial interaction and highlight soft biomaterial surface energy as a dominant design factor that should not be neglected. Although mechanisms of cell–material interaction and cellular mechanotransduction are increasingly understood, the mechanical insensitivity of mesenchymal cells to certain soft amorphous biomaterial substrates has remained largely unexplained. We reveal that surface energy-driven supramolecular ligand assembly can regulate mesenchymal stem cell (MSC) sensing of substrate mechanical compliance and subsequent cell fate. Human MSCs were cultured on collagen-coated hydrophobic polydimethylsiloxane (PDMS) and hydrophilic polyethylene-oxide-PDMS (PEO-PDMS) of a range of stiffnesses. Although cell contractility was similarly diminished on soft substrates of both types, cell spreading and osteogenic differentiation occurred only on soft PDMS and not hydrophilic PEO-PDMS (elastic modulus <1 kPa). Substrate surface energy yields distinct ligand topologies with accordingly distinct profiles of recruited transmembrane cell receptors and related focal adhesion signaling. These differences did not differentially regulate Rho-associated kinase activity, but nonetheless regulated both cell spreading and downstream differentiation.
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29
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Molecular assembly of recombinant chicken type II collagen in the yeast Pichia pastoris. SCIENCE CHINA-LIFE SCIENCES 2018; 61:815-825. [PMID: 29388039 DOI: 10.1007/s11427-017-9219-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/16/2017] [Indexed: 10/18/2022]
Abstract
Effective treatment of rheumatoid arthritis can be mediated by native chicken type II collagen (nCCII), recombinant peptide containing nCCII tolerogenic epitopes (CTEs), or a therapeutic DNA vaccine encoding the full-length CCOL2A1 cDNA. As recombinant CCII (rCCII) might avoid potential pathogenic virus contamination during nCCII preparation or chromosomal integration and oncogene activation associated with DNA vaccines, here we evaluated the importance of propeptide and telopeptide domains on rCCII triple helix molecular assembly. We constructed pC- and pN-procollagen (without N- or C-propeptides, respectively) as well as CTEs located in the triple helical domain lacking both propeptides and telopeptides, and expressed these in yeast Pichia pastoris host strain GS115 (his4, Mut+) simultaneously with recombinant chicken prolyl-4-hydroxylase α and β subunits. Both pC- and pN-procollagen monomers accumulated inside P. pastoris cells, whereas CTE was assembled into homotrimers with stable conformation and secreted into the supernatants, suggesting that the large molecular weight pC-or pN-procollagens were retained within the endoplasmic reticulum whereas the smaller CTEs proceeded through the secretory pathway. Furthermore, resulting recombinant chicken type II collagen pCα1(II) can induced collagen-induced arthritis (CIA) rat model, which seems to be as effective as the current standard nCCII. Notably, protease digestion assays showed that rCCII could assemble in the absence of C- and N-propeptides or telopeptides. These findings provide new insights into the minimal structural requirements for rCCII expression and folding.
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Disintegration of collagen fibrils by Glucono-δ-lactone: An implied lead for disintegration of fibrosis. Int J Biol Macromol 2018; 107:175-185. [DOI: 10.1016/j.ijbiomac.2017.08.158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 07/27/2017] [Accepted: 08/29/2017] [Indexed: 11/23/2022]
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31
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Kalbitzer L, Pompe T. Fibril growth kinetics link buffer conditions and topology of 3D collagen I networks. Acta Biomater 2018; 67:206-214. [PMID: 29208553 DOI: 10.1016/j.actbio.2017.11.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 11/14/2017] [Accepted: 11/28/2017] [Indexed: 12/12/2022]
Abstract
Three-dimensional fibrillar networks reconstituted from collagen I are widely used as biomimetic scaffolds for in vitro and in vivo cell studies. Various physicochemical parameters of buffer conditions for in vitro fibril formation are well known, including pH-value, ion concentrations and temperature. However, there is a lack of a detailed understanding of reconstituting well-defined 3D network topologies, which is required to mimic specific properties of the native extracellular matrix. We screened a wide range of relevant physicochemical buffer conditions and characterized the topology of the reconstituted 3D networks in terms of mean pore size and fibril diameter. A congruent analysis of fibril formation kinetics by turbidimetry revealed the adjustment of the lateral growth phase of fibrils by buffer conditions to be key in the determination of pore size and fibril diameter of the networks. Although the kinetics of nucleation and linear growth phase were affected by buffer conditions as well, network topology was independent of those two growth phases. Overall, the results of our study provide necessary insights into how to engineer 3D collagen matrices with an independent control over topology parameters, in order to mimic in vivo tissues in in vitro experiments and tissue engineering applications. STATEMENT OF SIGNIFICANCE The study reports a comprehensive analysis of physicochemical conditions of buffer solutions to reconstitute defined 3D collagen I matrices. By a combined analysis of network topology, i.e., pore size and fibril diameter, and the kinetics of fibril formation we can reveal the dependence of 3D network topology on buffer conditions, such as pH-value, phosphate concentration and sodium chloride content. With those results we are now able to provide engineering strategies to independently tune the topology parameters of widely used 3D collagen scaffolds based on the buffer conditions. By that, we enable the straightforward mimicking of extracellular matrices of in vivo tissues for in vitro cell culture experiments and tissue engineering applications.
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32
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Zhu S, Yuan Q, Yin T, You J, Gu Z, Xiong S, Hu Y. Self-assembly of collagen-based biomaterials: preparation, characterizations and biomedical applications. J Mater Chem B 2018; 6:2650-2676. [DOI: 10.1039/c7tb02999c] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
By combining regulatory parameters with characterization methods, researchers can selectively fabricate collagenous biomaterials with various functional responses for biomedical applications.
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Affiliation(s)
- Shichen Zhu
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province
| | - Qijuan Yuan
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
| | - Tao Yin
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Juan You
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
| | - Zhipeng Gu
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument
- School of Engineering
- Sun Yat-sen University
- Guangzhou 510006
- P. R. China
| | - Shanbai Xiong
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province
| | - Yang Hu
- College of Food Science and Technology and MOE Key Laboratory of Environment Correlative Dietology
- Huazhong Agricultural University
- Wuhan 430070
- P. R. China
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province
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33
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Holmes DF, Lu Y, Starborg T, Kadler KE. Collagen Fibril Assembly and Function. Curr Top Dev Biol 2018; 130:107-142. [DOI: 10.1016/bs.ctdb.2018.02.004] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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34
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Banerjee J, Azevedo HS. Crafting of functional biomaterials by directed molecular self-assembly of triple helical peptide building blocks. Interface Focus 2017; 7:20160138. [PMID: 29147553 PMCID: PMC5665793 DOI: 10.1098/rsfs.2016.0138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Collagen is the most abundant extracellular matrix protein in the body and has widespread use in biomedical research, as well as in clinics. In addition to difficulties in the production of recombinant collagen due to its high non-natural imino acid content, animal-derived collagen imposes several major drawbacks-variability in composition, immunogenicity, pathogenicity and difficulty in sequence modification-that may limit its use in the practical scenario. However, in recent years, scientists have shifted their attention towards developing synthetic collagen-like materials from simple collagen model triple helical peptides to eliminate the potential drawbacks. For this purpose, it is highly desirable to develop programmable self-assembling strategies that will initiate the hierarchical self-assembly of short peptides into large-scale macromolecular assemblies with recommendable bioactivity. Herein, we tried to elaborate our understanding related to the strategies that have been adopted by few research groups to trigger self-assembly in the triple helical peptide system producing fascinating supramolecular structures. We have also touched upon the major epitopes within collagen that can be incorporated into collagen mimetic peptides for promoting bioactivity.
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Affiliation(s)
| | - Helena S. Azevedo
- School of Engineering and Material Science, Institute of Bioengineering, University of London, Queen Mary, Mile End Road, London E1 4NS, UK
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35
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Fertala J, Romero F, Summer R, Fertala A. Target-Specific Delivery of an Antibody That Blocks the Formation of Collagen Deposits in Skin and Lung. Monoclon Antib Immunodiagn Immunother 2017; 36:199-207. [PMID: 28972447 DOI: 10.1089/mab.2017.0044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Regardless of the cause of organ fibrosis, its main unwanted consequence is the formation of collagen fibril-rich deposits that hamper the structure and function of affected tissues. Although many strategies have been proposed for the treatment of fibrotic diseases, no therapy has been developed, which can effectively block the formation of collagen fibril deposits. With this in mind, we recently developed an antibody-based therapy to block key interactions that drive collagen molecules into fibrils. In this study, we analyzed target specificity, which is a main parameter that defines the safe use of all antibody-based therapies in humans. We hypothesized that, regardless of the route of administration, our antibody would preferentially bind to free collagen molecules synthesized at the sites of fibrosis and have minimal off-target interactions when applied in various tissues. To test this hypothesis, we used two experimental models of organ fibrosis: (1) a keloid model, in which antibody constructs were directly implanted under the skin of nude mice and (2) an experimental model of pulmonary fibrosis, in which our antibody was administered systemically by intravenous injection. Following administration, we studied the distribution of our antibody within target and off-target sites as well as analyzed its effects on fibrotic tissue formation. We found that local and systemic application of our antibody had high specificity for targeting collagen fibrillogenesis and also appeared safe and therapeutically effective. In summary, this study provides the basis for further testing our antifibrotic antibody in a broad range of disease conditions and suggests that this treatment approach will be effective if delivered by local or systemic administration.
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Affiliation(s)
- Jolanta Fertala
- 1 Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Freddy Romero
- 2 Center for Translational Medicine and Jane and Leonard Korman Respiratory Institute, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Ross Summer
- 2 Center for Translational Medicine and Jane and Leonard Korman Respiratory Institute, Thomas Jefferson University , Philadelphia, Pennsylvania
| | - Andrzej Fertala
- 1 Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University , Philadelphia, Pennsylvania
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36
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Wei B, Nan J, Jiang Y, Wang H, Zhang J, He L, Xu C, Zhai Z, Xie D, Xie S. In Vitro Fabrication and Physicochemical Properties of a Hybrid Fibril from Xenogeneic Collagens. FOOD BIOPHYS 2017. [DOI: 10.1007/s11483-017-9498-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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37
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Shayegan M, Altindal T, Kiefl E, Forde NR. Intact Telopeptides Enhance Interactions between Collagens. Biophys J 2017; 111:2404-2416. [PMID: 27926842 DOI: 10.1016/j.bpj.2016.10.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/31/2016] [Accepted: 10/31/2016] [Indexed: 01/08/2023] Open
Abstract
Collagen is the fundamental structural component of a wide range of connective tissues and of the extracellular matrix. It undergoes self-assembly from individual triple-helical proteins into well-ordered fibrils, a process that is key to tissue development and homeostasis, and to processes such as wound healing. Nucleation of this assembly is known to be slowed considerably by pepsin removal of short nonhelical regions that flank collagen's triple helix, known as telopeptides. Using optical tweezers to perform microrheology measurements, we explored the changes in viscoelasticity of solutions of collagen with and without intact telopeptides. Our experiments reveal that intact telopeptides contribute a significant frequency-dependent enhancement of the complex shear modulus. An analytical model of polymers associating to establish chemical equilibrium among higher-order species shows trends in G' and G″ consistent with our experimental observations, including a concentration-dependent crossover in G″/c around 300 Hz. This work suggests that telopeptides facilitate transient intermolecular interactions between collagen proteins, even in the acidic conditions used here.
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Affiliation(s)
- Marjan Shayegan
- Department of Chemistry, Simon Fraser University, Burnaby, Canada
| | - Tuba Altindal
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, Canada; Department of Physics, Simon Fraser University, Burnaby, Canada
| | - Evan Kiefl
- Department of Physics, Simon Fraser University, Burnaby, Canada
| | - Nancy R Forde
- Department of Chemistry, Simon Fraser University, Burnaby, Canada; Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, Canada; Department of Physics, Simon Fraser University, Burnaby, Canada.
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38
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Steplewski A, Fertala J, Beredjiklian PK, Abboud JA, Wang MLY, Namdari S, Barlow J, Rivlin M, Arnold WV, Kostas J, Hou C, Fertala A. Blocking collagen fibril formation in injured knees reduces flexion contracture in a rabbit model. J Orthop Res 2017; 35:1038-1046. [PMID: 27419365 DOI: 10.1002/jor.23369] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 07/13/2016] [Indexed: 02/04/2023]
Abstract
Post-traumatic joint contracture is a frequent orthopaedic complication that limits the movement of injured joints, thereby severely impairing affected patients. Non-surgical and surgical treatments for joint contracture often fail to improve the range of motion. In this study, we tested a hypothesis that limiting the formation of collagen-rich tissue in the capsules of injured joints would reduce the consequences of the fibrotic response and improve joint mobility. We targeted the formation of collagen fibrils, the main component of fibrotic deposits formed within the tissues of injured joints, by employing a relevant rabbit model to test the utility of a custom-engineered antibody. The antibody was delivered directly to the cavities of injured knees in order to block the formation of collagen fibrils produced in response to injury. In comparison to the non-treated control, mechanical tests of the antibody-treated knees demonstrated a significant reduction of flexion contracture. Detailed microscopic and biochemical studies verified that this reduction resulted from the antibody-mediated blocking of the assembly of collagen fibrils. These findings indicate that extracellular processes associated with excessive formation of fibrotic tissue represent a valid target for limiting post-traumatic joint stiffness. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:1038-1046, 2017.
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Affiliation(s)
- Andrzej Steplewski
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107
| | - Jolanta Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107
| | - Pedro K Beredjiklian
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - Joseph A Abboud
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - Mark L Y Wang
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - Surena Namdari
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - Jonathan Barlow
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - Michael Rivlin
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - William V Arnold
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107.,Rothman Institute of Orthopaedics, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107
| | - James Kostas
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107
| | - Cheryl Hou
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, 1015 Walnut Street, Philadelphia, Pennsylvania 19107
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39
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Yang W, Li L, Su G, Zhang Z, Cao Y, Li X, Shi Y, Zhang Q. A collagen telopeptide binding peptide shows potential in aiding collagen bundle formation and fibril orientation. Biomater Sci 2017. [DOI: 10.1039/c6bm00574h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A double-armed CTBP-PEG-CTBP derivative of a collagen telopeptide binding peptide (CTBP), shows potential in aiding collagen bundle formation and fibril orientation by interacting with fibrils.
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Affiliation(s)
- Wenyu Yang
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
| | - Lin Li
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
| | - Guanghao Su
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
| | - Zhe Zhang
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
| | - Yiting Cao
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
| | - Xuemin Li
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
| | - Yanping Shi
- School of Chemistry and Chemical Engineering
- Tianjin University of Technology
- Tianjin
- PR China
| | - Qiqing Zhang
- The Key Laboratory of Biomedical Material of Tianjin
- Institute of Biomedical Engineering
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Tianjin
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40
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Tillgren V, Mörgelin M, Önnerfjord P, Kalamajski S, Aspberg A. The Tyrosine Sulfate Domain of Fibromodulin Binds Collagen and Enhances Fibril Formation. J Biol Chem 2016; 291:23744-23755. [PMID: 27634037 DOI: 10.1074/jbc.m116.730325] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Indexed: 11/06/2022] Open
Abstract
Small leucine-rich proteoglycans interact with other extracellular matrix proteins and are important regulators of matrix assembly. Fibromodulin has a key role in connective tissues, binding collagen through two identified binding sites in its leucine-rich repeat domain and regulating collagen fibril formation in vitro and in vivo Some nine tyrosine residues in the fibromodulin N-terminal domain are O-sulfated, a posttranslational modification often involved in protein interactions. The N-terminal domain mimics heparin, binding proteins with clustered basic amino acid residues. Because heparin affects collagen fibril formation, we investigated whether tyrosine sulfate is involved in fibromodulin interactions with collagen. Using full-length fibromodulin and its N-terminal tyrosine-sulfated domain purified from tissue, as well as recombinant fibromodulin fragments, we found that the N-terminal domain binds collagen. The tyrosine-sulfated domain and the leucine-rich repeat domain both bound to three specific sites along the collagen type I molecule, at the N terminus and at 100 and 220 nm from the N terminus. The N-terminal domain shortened the collagen fibril formation lag phase and tyrosine sulfation was required for this effect. The isolated leucine-rich repeat domain inhibited the fibril formation rate, and full-length fibromodulin showed a combination of these effects. The fibrils formed in the presence of fibromodulin or its fragments showed more organized structure. Fibromodulin and its tyrosine sulfate domain remained bound on the formed fiber. Taken together, this suggests a novel, regulatory function for tyrosine sulfation in collagen interaction and control of fibril formation.
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Affiliation(s)
- Viveka Tillgren
- From the Departments of Clinical Sciences Lund, Rheumatology and Molecular Skeletal Biology BMC-C12 and
| | - Matthias Mörgelin
- Clinical Sciences Lund, Division of Infection Medicine (BMC) BMC-B14, Lund University, SE-22184 Lund, Sweden
| | - Patrik Önnerfjord
- From the Departments of Clinical Sciences Lund, Rheumatology and Molecular Skeletal Biology BMC-C12 and
| | - Sebastian Kalamajski
- From the Departments of Clinical Sciences Lund, Rheumatology and Molecular Skeletal Biology BMC-C12 and
| | - Anders Aspberg
- From the Departments of Clinical Sciences Lund, Rheumatology and Molecular Skeletal Biology BMC-C12 and
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41
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Kalamajski S, Bihan D, Bonna A, Rubin K, Farndale RW. Fibromodulin Interacts with Collagen Cross-linking Sites and Activates Lysyl Oxidase. J Biol Chem 2016; 291:7951-60. [PMID: 26893379 PMCID: PMC4825002 DOI: 10.1074/jbc.m115.693408] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Indexed: 11/28/2022] Open
Abstract
The hallmark of fibrotic disorders is a highly cross-linked and dense collagen matrix, a property driven by the oxidative action of lysyl oxidase. Other fibrosis-associated proteins also contribute to the final collagen matrix properties, one of which is fibromodulin. Its interactions with collagen affect collagen cross-linking, packing, and fibril diameter. We investigated the possibility that a specific relationship exists between fibromodulin and lysyl oxidase, potentially imparting a specific collagen matrix phenotype. We mapped the fibromodulin-collagen interaction sites using the collagen II and III Toolkit peptide libraries. Fibromodulin interacted with the peptides containing the known collagen cross-linking sites and the MMP-1 cleavage site in collagens I and II. Interestingly, the interaction sites are closely aligned within the quarter-staggered collagen fibril, suggesting a multivalent interaction between fibromodulin and several collagen helices. Furthermore, we detected an interaction between fibromodulin and lysyl oxidase (a major collagen cross-linking enzyme) and mapped the interaction site to 12 N-terminal amino acids on fibromodulin. This interaction also increases the activity of lysyl oxidase. Together, the data suggest a fibromodulin-modulated collagen cross-linking mechanism where fibromodulin binds to a specific part of the collagen domain and also forms a complex with lysyl oxidase, targeting the enzyme toward specific cross-linking sites.
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Affiliation(s)
- Sebastian Kalamajski
- From the Department of Laboratory Medical Sciences, Lund University, Medicon Village 406-3, 22363 Lund, Sweden and
| | - Dominique Bihan
- the Department of Biochemistry, Downing Site, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Arkadiusz Bonna
- the Department of Biochemistry, Downing Site, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Kristofer Rubin
- From the Department of Laboratory Medical Sciences, Lund University, Medicon Village 406-3, 22363 Lund, Sweden and
| | - Richard W Farndale
- the Department of Biochemistry, Downing Site, University of Cambridge, Cambridge CB2 1QW, United Kingdom
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42
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Collagen interactions: Drug design and delivery. Adv Drug Deliv Rev 2016; 97:69-84. [PMID: 26631222 DOI: 10.1016/j.addr.2015.11.013] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 12/25/2022]
Abstract
Collagen is a major component in a wide range of drug delivery systems and biomaterial applications. Its basic physical and structural properties, together with its low immunogenicity and natural turnover, are keys to its biocompatibility and effectiveness. In addition to its material properties, the collagen triple-helix interacts with a large number of molecules that trigger biological events. Collagen interactions with cell surface receptors regulate many cellular processes, while interactions with other ECM components are critical for matrix structure and remodeling. Collagen also interacts with enzymes involved in its biosynthesis and degradation, including matrix metalloproteinases. Over the past decade, much information has been gained about the nature and specificity of collagen interactions with its partners. These studies have defined collagen sequences responsible for binding and the high-resolution structures of triple-helical peptides bound to its natural binding partners. Strategies to target collagen interactions are already being developed, including the use of monoclonal antibodies to interfere with collagen fibril formation and the use of triple-helical peptides to direct liposomes to melanoma cells. The molecular information about collagen interactions will further serve as a foundation for computational studies to design small molecules that can interfere with specific interactions or target tumor cells. Intelligent control of collagen biological interactions within a material context will expand the effectiveness of collagen-based drug delivery.
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43
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Kaur PJ, Strawn R, Bai H, Xu K, Ordas G, Matsui H, Xu Y. The self-assembly of a mini-fibril with axial periodicity from a designed collagen-mimetic triple helix. J Biol Chem 2015; 290:9251-61. [PMID: 25673694 DOI: 10.1074/jbc.m113.542241] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 11/06/2022] Open
Abstract
In this work we describe the self-assembly of a collagen-like periodic mini-fibril from a recombinant triple helix. The triple helix, designated Col108, is expressed in Escherichia coli using an artificial gene and consists of a 378-residue triple helix domain organized into three pseudo-repeating sequence units. The peptide forms a stable triple helix with a melting temperature of 41 °C. Upon increases of pH and temperature, Col108 self-assembles in solution into smooth mini-fibrils with the cross-striated banding pattern typical of fibrillar collagens. The banding pattern is characterized by an axially repeating feature of ∼35 nm as observed by transmission electron microscopy and atomic force microscopy. Both the negatively stained and the positively stained transmission electron microscopy patterns of the Col108 mini-fibrils are consistent with a staggered arrangement of triple helices having a staggering value of 123 residues, a value closely connected to the size of one repeat sequence unit. A mechanism is proposed for the mini-fibril formation of Col108 in which the axial periodicity is instigated by the built-in sequence periodicity and stabilized by the optimized interactions between the triple helices in a 1-unit staggered arrangement. Lacking hydroxyproline residues and telopeptides, two factors implicated in the fibrillogenesis of native collagen, the Col108 mini-fibrils demonstrate that sequence features of the triple helical domain alone are sufficient to "code" for axially repeating periodicity of fibrils. To our knowledge, Col108 is the first designed triple helix to self-assemble into periodic fibrils and offers a unique opportunity to unravel the specific molecular interactions of collagen fibrillogenesis.
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Affiliation(s)
- Parminder Jeet Kaur
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
| | - Rebecca Strawn
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
| | - Hanying Bai
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
| | - Ke Xu
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
| | - Gabriel Ordas
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
| | - Hiroshi Matsui
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
| | - Yujia Xu
- From the Department of Chemistry, Hunter College of City University of New York, New York, New York 10065
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Capsaicin inhibits collagen fibril formation and increases the stability of collagen fibers. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2014; 44:69-76. [DOI: 10.1007/s00249-014-1002-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Revised: 11/23/2014] [Accepted: 11/27/2014] [Indexed: 12/23/2022]
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Zenda M, Yasui H, Oishi S, Masuda R, Fujii N, Koide T. A cisplatin derivative that inhibits collagen fibril-formation in vitro. Chem Biol Drug Des 2014; 85:519-26. [PMID: 25315878 DOI: 10.1111/cbdd.12450] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 09/25/2014] [Accepted: 10/04/2014] [Indexed: 12/01/2022]
Abstract
Using an in vitro random screening of small-molecule compounds, we discovered cis-diamminedichloroplatinum(II) (cisplatin), an anticancer agent, as a potential inhibitor of collagen fibril-formation. The inhibitory effect was found only when cisplatin was dissolved in dimethylsulphoxide (DMSO), indicating that the active species were cisplatin derivatives formed in the DMSO solution. The cisplatin derivatives inhibited the formation of collagen fibrils in vitro without affecting the triple-helical conformation of the collagen molecules. Incubation with the cisplatin solution in DMSO also inhibited in situ deposition of collagen fibrils in a human umbilical vein endothelial cell (HUVEC) culture. In addition, the derivatization of cisplatin in DMSO abolished the cytotoxicity of the original compound. The platinum complex was further revealed to interact with specific sites on the collagen triple helix, and the binding sites were suggested to contain His and/or Met residues. Mass spectrometry analysis of the cisplatin solution in DMSO and a structure-activity relationship study strongly suggested that the active compound is [Pt(NH3 )2 (Cl)(DMSO)](+) . This platinum complex will be useful for investigating molecular mechanisms of collagen self-assembly and for drug development for the treatment of fibrotic diseases.
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Affiliation(s)
- Miyu Zenda
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
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Fertala J, Kostas J, Hou C, Steplewski A, Beredjiklian P, Abboud J, Arnold WV, Williams G, Fertala A. Testing the anti-fibrotic potential of the single-chain Fv antibody against the α2 C-terminal telopeptide of collagen I. Connect Tissue Res 2014; 55:115-22. [PMID: 24195607 PMCID: PMC3947660 DOI: 10.3109/03008207.2013.862528] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Abstract This study focuses on the single-chain fragment variable (scFv) variant of the original IgA-type antibody, recognizing the α2 C-terminal telopeptide (α2Ct) of human collagen I, designed to inhibit post-traumatic localized fibrosis via blocking the formation of collagen-rich deposits. We have demonstrated that the scFv construct expressed in yeast cells was able to fold into an immunoglobulin-like conformation, but it was prone to forming soluble aggregates. Functional assays, however, indicate that the scFv construct specifically binds to the α2Ct epitope and inhibits collagen fibril formation both in vitro and in a cell culture model representing tissues that undergo post-traumatic fibrosis. Thus, the presented study demonstrates the potential of the scFv variant to serve as an inhibitor of the excessive formation of collagen-rich fibrotic deposits, and it reveals certain limitations associated with the current stage of development of this antibody construct.
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Affiliation(s)
- Jolanta Fertala
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - James Kostas
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Cheryl Hou
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Andrzej Steplewski
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Pedro Beredjiklian
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Joseph Abboud
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - William V. Arnold
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Gerald Williams
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A,Correspondence to Andrzej Fertala, Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA 19107, U.S.A. Tel: 215-503-0113,
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de Wild M, Pomp W, Koenderink GH. Thermal memory in self-assembled collagen fibril networks. Biophys J 2014; 105:200-10. [PMID: 23823240 DOI: 10.1016/j.bpj.2013.05.035] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 04/26/2013] [Accepted: 05/10/2013] [Indexed: 01/20/2023] Open
Abstract
Collagen fibrils form extracellular networks that regulate cell functions and provide mechanical strength to tissues. Collagen fibrillogenesis is an entropy-driven process promoted by warming and reversed by cooling. Here, we investigate the influence of noncovalent interactions mediated by the collagen triple helix on fibril stability. We measure the kinetics of cold-induced disassembly of fibrils formed from purified collagen I using turbimetry, probe the fibril morphology by atomic force microscopy, and measure the network connectivity by confocal microscopy and rheometry. We demonstrate that collagen fibrils disassemble by subunit release from their sides as well as their ends, with complex kinetics involving an initial fast release followed by a slow release. Surprisingly, the fibrils are gradually stabilized over time, leading to thermal memory. This dynamic stabilization may reflect structural plasticity of the collagen fibrils arising from their complex structure. In addition, we propose that the polymeric nature of collagen monomers may lead to slow kinetics of subunit desorption from the fibril surface. Dynamic stabilization of fibrils may be relevant in the initial stages of collagen assembly during embryogenesis, fibrosis, and wound healing. Moreover, our results are relevant for tissue repair and drug delivery applications, where it is crucial to control fibril stability.
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Affiliation(s)
- Martijn de Wild
- Biological Soft Matter Group, FOM Institute AMOLF, Amsterdam, The Netherlands
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Shayegan M, Forde NR. Microrheological characterization of collagen systems: from molecular solutions to fibrillar gels. PLoS One 2013; 8:e70590. [PMID: 23936454 PMCID: PMC3732230 DOI: 10.1371/journal.pone.0070590] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 06/25/2013] [Indexed: 01/19/2023] Open
Abstract
Collagen is the most abundant protein in the extracellular matrix (ECM), where its structural organization conveys mechanical information to cells. Using optical-tweezers-based microrheology, we investigated mechanical properties both of collagen molecules at a range of concentrations in acidic solution where fibrils cannot form and of gels of collagen fibrils formed at neutral pH, as well as the development of microscale mechanical heterogeneity during the self-assembly process. The frequency scaling of the complex shear modulus even at frequencies of ∼10 kHz was not able to resolve the flexibility of collagen molecules in acidic solution. In these solutions, molecular interactions cause significant transient elasticity, as we observed for 5 mg/ml solutions at frequencies above ∼200 Hz. We found the viscoelasticity of solutions of collagen molecules to be spatially homogeneous, in sharp contrast to the heterogeneity of self-assembled fibrillar collagen systems, whose elasticity varied by more than an order of magnitude and in power-law behavior at different locations within the sample. By probing changes in the complex shear modulus over 100-minute timescales as collagen self-assembled into fibrils, we conclude that microscale heterogeneity appears during early phases of fibrillar growth and continues to develop further during this growth phase. Experiments in which growing fibrils dislodge microspheres from an optical trap suggest that fibril growth is a force-generating process. These data contribute to understanding how heterogeneities develop during self-assembly, which in turn can help synthesis of new materials for cellular engineering.
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Affiliation(s)
- Marjan Shayegan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Nancy R. Forde
- Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada
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Fertala J, Steplewski A, Kostas J, Beredjiklian P, Williams G, Arnold W, Abboud J, Bhardwaj A, Hou C, Fertala A. Engineering and characterization of the chimeric antibody that targets the C-terminal telopeptide of the α2 chain of human collagen I: a next step in the quest to reduce localized fibrosis. Connect Tissue Res 2013; 54:187-96. [PMID: 23586407 PMCID: PMC3896972 DOI: 10.3109/03008207.2013.778839] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Inhibition of the extracellular process of collagen fibril formation represents a new approach to limiting posttraumatic or postsurgical localized fibrosis. It has been demonstrated that employing a monoclonal antibody that targets the C-terminal telopeptide of the α2 chain of collagen I blocks critical collagen I-collagen I interaction, thereby reducing the amount of collagen deposits in vitro and in animal models. Here, we developed a chimeric variant of a prototypic inhibitory antibody of mouse origin. The structure of this novel antibody was analyzed by biochemical and biophysical methods. Moreover, detailed biochemical and biological studies were employed to test its antigen-binding characteristics. The ability of the chimeric variant to block formation of collagen fibrils was tested in vitro and in high-density cultures representing fibrotic processes occurring in the skin, tendon, joint capsule, and gingiva. The potential toxicity of the novel chimeric antibody was analyzed through its impact on the viability and proliferation of various cells and by testing its tissue cross-reactivity in sets of arrays of human and mouse tissues. Results of the presented studies indicate that engineered antibody-based blocker of localized fibrosis is characterized by the following: (1) a correct IgG-like structure, (2) high affinity and high specificity for a defined epitope, (3) a great potential to limit the accumulation of collagen-rich deposits, and (4) a lack of cytotoxicity and nonspecific tissue reactivity. Together, the presented study shows the great potential of the novel chimeric antibody to limit localized fibrosis, thereby setting ground for critical preclinical tests in a relevant animal model.
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Affiliation(s)
- Jolanta Fertala
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Andrzej Steplewski
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - James Kostas
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Pedro Beredjiklian
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Gerard Williams
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - William Arnold
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Joseph Abboud
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Anshul Bhardwaj
- Department of Biochemistry and Molecular Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Cheryl Hou
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A,Correspondence to Andrzej Fertala, Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA 19107, U.S.A. Tel: 215-503-0113,
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Abstract
Background The overall aim of presented study is to test the inhibition of the formation of collagen fibrils as the novel approach to reduce accumulation of pathological fibrotic deposits. The main hypothesis is that by interfering with the initial steps of the extracellular process of collagen fibril formation, it is possible to reduce the formation of fibrotic tissue. Methods The experimental model includes antibody-based inhibitors that specifically bind to the sites that participate in the collagen/collagen interaction. Results Employed antibody-based inhibitors effectively limit the amount of collagen fibrils formed in vitro and in engineered tissue models of localized fibrosis. Conclusions (i) Inhibition of collagen formation is an attractive target to reduce excessive formation of fibrotic tissue. (ii) Antibody-based inhibitors of collagen fibril formation are promising therapeutic agents with a potential to limit localized fibrosis in a number of tissues.
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Affiliation(s)
- Andrzej Steplewski
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
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