1
|
Dhiman MS, Bader TJ, Ponjevic D, Salo PT, Hart DA, Swamy G, Matyas JR, Duncan NA. Collagen integrity of the annulus fibrosus in degenerative disc disease individuals quantified with collagen hybridizing peptide. JOR Spine 2024; 7:e1359. [PMID: 39092166 PMCID: PMC11291301 DOI: 10.1002/jsp2.1359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/27/2024] [Accepted: 07/03/2024] [Indexed: 08/04/2024] Open
Abstract
Introduction Degenerative disc disease (DDD) is accompanied by structural changes in the intervertebral discs (IVD). Extra-cellular matrix degradation of the annulus fibrosus (AF) has been linked with degeneration of the IVD. Collagen is a vital component of the IVD. Collagen hybridizing peptide (CHP) is an engineered protein that binds to degraded collagen, which we used to quantify collagen damage in AF. This method was used to compare AF samples obtained from donors with no DDD to AF samples from patients undergoing surgery for symptomatic DDD. Methods Fresh AF tissue was embedded in an optimal cutting temperature compound and cryosectioned at a thickness of 8 μm. Hematoxylin and Eosin staining was performed on sections for general histomorphological assessment. Serial sections were stained with Cy3-conjugated CHP and the mean fluorescence intensity and areal fraction of Cy3-positive staining were averaged for three regions of interest (ROI) on each CHP-stained section. Results Increases in mean fluorescence intensity (p = 0.0004) and percentage of positively stained area (p = 0.00008) with CHP were detected in DDD samples compared to the non-DDD samples. Significant correlations were observed between mean fluorescence intensity and percentage of positively stained area for both non-DDD (R = 0.98, p = 5E-8) and DDD (R = 0.79, p = 0.0012) samples. No significant differences were detected between sex and the lumbar disc level subgroups of the non-DDD and DDD groups. Only tissue pathology (non-DDD versus DDD) influenced the measured parameters. No three-way interactions between tissue pathology, sex, and lumbar disc level were observed. Discussion and Conclusions These findings suggest that AF collagen degradation is greater in DDD samples compared to non-DDD samples, as evidenced by the increased CHP staining. Strong positive correlations between the two measured parameters suggest that when collagen degradation occurs, it is detected by this technique and is widespread throughout the tissue. This study provides new insights into the structural alterations associated with collagen degradation in the AF that occur during DDD.
Collapse
Affiliation(s)
- Manmeet S. Dhiman
- Department of Biomedical EngineeringUniversity of CalgaryCalgaryAlbertaCanada
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
| | - Taylor J. Bader
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Department of Medical SciencesUniversity of CalgaryCalgaryAlbertaCanada
| | - Dragana Ponjevic
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Faculty of Veterinary MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - Paul T. Salo
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Department of Surgery, Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - David A. Hart
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Department of Surgery, Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Faculty of KinesiologyUniversity of CalgaryCalgaryAlbertaCanada
| | - Ganesh Swamy
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Department of Surgery, Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - John R. Matyas
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Faculty of Veterinary MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - Neil A. Duncan
- McCaig Institute for Bone and Joint HealthUniversity of CalgaryCalgaryAlbertaCanada
- Department of Civil EngineeringUniversity of CalgaryCalgaryAlbertaCanada
| |
Collapse
|
2
|
Linder M, Bennink L, Foxton RH, Kirkness M, Westenskow PD. In vivo monitoring of active subretinal fibrosis in mice using collagen hybridizing peptides. Lab Anim (NY) 2024; 53:196-204. [PMID: 39060633 PMCID: PMC11291276 DOI: 10.1038/s41684-024-01408-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 06/19/2024] [Indexed: 07/28/2024]
Abstract
Subretinal fibrosis is associated with worse visual outcomes in patients with neovascular age-related macular degeneration. As there is a lack of optimal biomarkers and no method that directly detects collagen in the back of the eye, novel tools that monitor fibrosis-related changes in neovascular age-related macular degeneration are needed. Here, using two mouse models (the laser-induced choroidal neovascularization model, and the JR5558 mouse presenting with spontaneous subretinal neovascularization with fibrosis), we imaged active fibrotic lesions using fluorescently labeled collagen hybridizing peptides (CHPs), short peptides that bind to single α-chain collagen structures during collagen remodeling. JR5558 retinal pigment epithelium/choroid flat mounts showed CHP co-staining with fibrosis and epithelial mesenchymal transition-related markers; additionally, CHP histopathology staining correlated with in vivo CHP imaging. After laser-induced choroidal neovascularization, in vivo CHP binding correlated with laser intensity, histopathology CHP and fibronectin staining. Laser-induced choroidal neovascularization showed decreased CHP intensity over time in healing/regressing versus active scars in vivo, whereas increased CHP binding correlated with elevated fibrosis in JR5558 mouse eyes with age. In bispecific angiopoietin 2/vascular endothelial growth factor antibody-treated JR5558 mice, CHPs detected significantly decreased collagen remodeling versus immunoglobulin G control. These results demonstrate the first use of CHPs to directly image remodeling collagen in the eye and as a potential clinical optical biomarker of active subretinal fibrosis associated with ocular neovascularization.
Collapse
Affiliation(s)
- Markus Linder
- Roche Pharma Research and Early Development, Roche Innovation Center, F. Hoffmann-La Roche AG, Basel, Switzerland
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - Richard H Foxton
- Roche Pharma Research and Early Development, Roche Innovation Center, F. Hoffmann-La Roche AG, Basel, Switzerland
| | | | - Peter D Westenskow
- Roche Pharma Research and Early Development, Roche Innovation Center, F. Hoffmann-La Roche AG, Basel, Switzerland.
| |
Collapse
|
3
|
Ratnatilaka Na Bhuket P, Li Y, Yu SM. From Collagen Mimetics to Collagen Hybridization and Back. Acc Chem Res 2024; 57:1649-1657. [PMID: 38795029 DOI: 10.1021/acs.accounts.3c00772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2024]
Abstract
ConspectusFacilitated by the unique triple-helical protein structure, fibrous collagens, the principal proteins in animals, demonstrate a dual function of serving as building blocks for tissue scaffolds and as a bioactive material capable of swift renewal in response to environmental changes. While studies of triple-helical collagen mimetic peptides (CMPs) have been instrumental in understanding the molecular forces responsible for the folding and assembly of triple helices, as well as identifying bioactive regions of fibrous collagen molecules, single-strand CMPs that can specifically target and hybridize to denatured collagens (i.e., collagen hybridizing peptides, CHPs) have proven useful in identifying the remodeling activity of collagen-rich tissues related to development, homeostasis, and pathology. Efforts to improve the utility of CHPs have resulted in the development of new skeletal structures, such as dimeric and cyclic CHPs, as well as the incorporation of artificial amino acids, including fluorinated proline and N-substituted glycines (peptoid residues). In particular, dimeric CHPs were used to capture collagen fragments from biological fluid for biomarker study, and the introduction of peptoid-based collagen mimetics has sparked renewed interest in peptidomimetic research because peptoids enable a stable triple-helical structure and the presentation of an extensive array of side chain structures offering a versatile platform for the development of new collagen mimetics.This Account will cover the evolution of our research from CMPs as biomaterials to ongoing efforts in developing triple-helical peptides with practical theranostic potential in targeting denatured and damaged collagens. Our early efforts in functionalizing natural collagen scaffolds via noncovalent modifications led to the discovery of an entirely new use of CMPs. This discovery resulted in the development of CHPs that are now used by many different laboratories for the investigation of pathologies associated with changes in the structures of extracellular matrices including fibrosis, cancer, and mechanical damage to collagen-rich, load-bearing tissues. Here, we delve into the essential design features of CHPs contributing to their collagen binding properties and practical usage and explore the necessity for further mechanistic understanding of not only the binding processes (e.g., binding domain and stoichiometry of the hybridized complex) but also the biology of collagen degradation, from proteolytic digestion of fibrils to cellular processing of collagen fragments. We also discuss the strengths and weaknesses of peptoid-based triple-helical peptides as applied to collagen hybridization touching on thermodynamic and kinetic aspects of triple-helical folding. Finally, we highlight current limitations and future directions in the use of peptoid building blocks to develop bioactive collagen mimetics as new functional biomaterials.
Collapse
Affiliation(s)
| | - Yang Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong 519000, China
| | - S Michael Yu
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, Utah 84112, United States
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, United States
| |
Collapse
|
4
|
Tran JC, Kuffner CJ, Marzilli AM, Miller RE, Silfen ZE, McMahan JB, Sloas DC, Chen CS, Ngo JT. Fluorescein-Based SynNotch Adaptors for Regulating Gene Expression Responses to Diverse Extracellular Cues. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.12.598538. [PMID: 38915575 PMCID: PMC11195177 DOI: 10.1101/2024.06.12.598538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
We introduce an adaptor-based strategy for regulating fluorescein-binding synthetic Notch (SynNotch) receptors using ligands based on conjugates of fluorescein isomers and analogs. To develop a versatile system, we evaluated the surface expression and activities of multiple constructs containing distinct extracellular fluorescein-binding domains. Using an optimized receptor, we devised ways to regulate signaling via fluorescein-based chemical transformations, including an approach based on a bio-orthogonal chemical ligation and a spatially controllable strategy via the photo-patterned uncaging of an o -nitrobenzyl-caged fluorescein conjugate. We further demonstrate that fluorescein-conjugated extracellular matrix (ECM)-binding peptides can regulate SynNotch activity depending on the folding state of collagen-based ECM networks. Treatment with these conjugates enabled cells to distinguish between folded versus denatured collagen proteins and enact dose-dependent gene expression responses depending on the nature of the signaling adaptors presented. To demonstrate the utility of these tools, we applied them to control the myogenic conversion of fibroblasts into myocytes with spatial and temporal precision and in response to denatured collagen-I, a biomarker of multiple pathological states. Overall, we introduce an optimized fluorescein-binding SynNotch as a versatile tool for regulating transcriptional responses to extracellular ligands based on the widely used and clinically-approved fluorescein dye.
Collapse
|
5
|
Sun T, Zhao H, Hu L, Shao X, Lu Z, Wang Y, Ling P, Li Y, Zeng K, Chen Q. Enhanced optical imaging and fluorescent labeling for visualizing drug molecules within living organisms. Acta Pharm Sin B 2024; 14:2428-2446. [PMID: 38828150 PMCID: PMC11143489 DOI: 10.1016/j.apsb.2024.01.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/07/2024] [Accepted: 01/25/2024] [Indexed: 06/05/2024] Open
Abstract
The visualization of drugs in living systems has become key techniques in modern therapeutics. Recent advancements in optical imaging technologies and molecular design strategies have revolutionized drug visualization. At the subcellular level, super-resolution microscopy has allowed exploration of the molecular landscape within individual cells and the cellular response to drugs. Moving beyond subcellular imaging, researchers have integrated multiple modes, like optical near-infrared II imaging, to study the complex spatiotemporal interactions between drugs and their surroundings. By combining these visualization approaches, researchers gain supplementary information on physiological parameters, metabolic activity, and tissue composition, leading to a comprehensive understanding of drug behavior. This review focuses on cutting-edge technologies in drug visualization, particularly fluorescence imaging, and the main types of fluorescent molecules used. Additionally, we discuss current challenges and prospects in targeted drug research, emphasizing the importance of multidisciplinary cooperation in advancing drug visualization. With the integration of advanced imaging technology and molecular design, drug visualization has the potential to redefine our understanding of pharmacology, enabling the analysis of drug micro-dynamics in subcellular environments from new perspectives and deepening pharmacological research to the levels of the cell and organelles.
Collapse
Affiliation(s)
- Ting Sun
- School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
- Institute of Biochemical and Biotechnological Drugs, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - Huanxin Zhao
- School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Luyao Hu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xintian Shao
- School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
- School of Life Sciences, Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Zhiyuan Lu
- School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Yuli Wang
- Tianjin Pharmaceutical DA REN TANG Group Corporation Limited Traditional Chinese Pharmacy Research Institute, Tianjin 300457, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemistry Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Peixue Ling
- Institute of Biochemical and Biotechnological Drugs, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
- Key Laboratory of Biopharmaceuticals, Postdoctoral Scientific Research Workstation, Shandong Academy of Pharmaceutical Science, Jinan 250098, China
| | - Yubo Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Kewu Zeng
- School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Qixin Chen
- School of Pharmaceutical Sciences, National Key Laboratory of Advanced Drug Delivery System, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
| |
Collapse
|
6
|
Li L, Jiao L, Feng D, Yuan Y, Yang X, Li J, Jiang D, Chen H, Meng Q, Chen R, Fang B, Zou X, Luo Z, Ye X, Hong Y, Liu C, Li C. Human apical-out nasal organoids reveal an essential role of matrix metalloproteinases in airway epithelial differentiation. Nat Commun 2024; 15:143. [PMID: 38168066 PMCID: PMC10762242 DOI: 10.1038/s41467-023-44488-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
Extracellular matrix (ECM) assembly/disassembly is a critical regulator for airway epithelial development and remodeling. Airway organoid is widely used in respiratory research, yet there is limited study to indicate the roles and mechanisms of ECM organization in epithelial growth and differentiation by using in vitro organoid system. Moreover, most of current Matrigel-based airway organoids are in basal-out orientation where accessing the apical surface is challenging. We present a human apical-out airway organoid using a biochemically defined hybrid hydrogel system. During human nasal epithelial progenitor cells (hNEPCs) differentiation, the gel gradually degrade, leading to the organoid apical surfaces facing outward. The expression and activity of ECM-degrading enzymes, matrix metalloproteinases (MMP7, MMP9, MMP10 and MMP13) increases during organoid differentiation, where inhibition of MMPs significantly suppresses the normal ciliation, resulting in increased goblet cell proportion. Moreover, a decrease of MMPs is found in goblet cell hyperplastic epithelium in inflammatory mucosa. This system reveals essential roles of epithelial-derived MMPs on epithelial cell fate determination, and provides an applicable platform enabling further study for ECM in regulating airway development in health and diseases.
Collapse
Affiliation(s)
- Liyue Li
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Linyi Jiao
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Danni Feng
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yizhang Yuan
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoqian Yang
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Li
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning, China
| | - Dong Jiang
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hexin Chen
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qingxiang Meng
- Department of Otorhinolaryngology Head and Neck Surgery, Guangzhou First People's Hospital, Guangzhou, China
| | - Ruchong Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Department of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Bixing Fang
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xuenong Zou
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhenhua Luo
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Ye
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning, China
| | - Yue Hong
- School of Life Sciences, Hainan University, Haikou, China
| | - Chun Liu
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Chunwei Li
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| |
Collapse
|
7
|
He T, Fisher GJ, Kim AJ, Quan T. Age-related changes in dermal collagen physical properties in human skin. PLoS One 2023; 18:e0292791. [PMID: 38064445 PMCID: PMC10707495 DOI: 10.1371/journal.pone.0292791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/28/2023] [Indexed: 12/18/2023] Open
Abstract
Collagen is the major structural protein in the skin. Fragmentation and disorganization of the collagen fibrils are the hallmarks of the aged human skin dermis. These age-related alterations of collagen fibrils impair skin structural integrity and make the tissue microenvironment more prone to skin disorders. As the biological function of collagen lies predominantly in its physical properties, we applied atomic force microscopy (AFM) and nanoindentation to evaluate the physical properties (surface roughness, stiffness, and hardness) of dermal collagen in young (25±5 years, N = 6) and aged (75±6 years, N = 6) healthy sun-protected hip skin. We observed that in the aged dermis, the surface of collagen fibrils was rougher, and fiber bundles were stiffer and harder, compared to young dermal collagen. Mechanistically, the age-related elevation of matrix metalloproteinase-1 (MMP-1) and advanced glycation end products (AGEs) are responsible for rougher and stiffer/harder dermal collagen, respectively. Analyzing the physical properties of dermal collagen as a function of age revealed that alterations of the physical properties of collagen fibrils changed with age (22-89 years, N = 18). We also observed that the reticular dermis is rougher and mechanically stiffer and harder compared to the papillary dermis in human skin. These data extend the current understanding of collagen beyond biological entities to include biophysical properties.
Collapse
Affiliation(s)
- Tianyuan He
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Gary J. Fisher
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Ava J. Kim
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Taihao Quan
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| |
Collapse
|
8
|
Park Y, Sato T, Lee J. Functional and analytical recapitulation of osteoclast biology on demineralized bone paper. Nat Commun 2023; 14:8092. [PMID: 38062034 PMCID: PMC10703810 DOI: 10.1038/s41467-023-44000-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Osteoclasts are the primary target for osteoporosis drug development. Recent animal studies revealed the crucial roles of osteoblasts in regulating osteoclastogenesis and the longer lifespans of osteoclasts than previously thought with fission and recycling. However, existing culture platforms are limited to replicating these newly identified cellular processes. We report a demineralized bone paper (DBP)-based osteoblast culture and osteoclast assay platform that replicates osteoclast fusion, fission, resorption, and apoptosis with high fidelity and analytical power. An osteoid-inspired DBP supports rapid and structural mineral deposition by osteoblasts. Coculture osteoblasts and bone marrow monocytes under biochemical stimulation recapitulate osteoclast differentiation and function. The DBP-based bone model allows longitudinal quantitative fluorescent monitoring of osteoclast responses to bisphosphonate drug, substantiating significantly reducing their number and lifespan. Finally, we demonstrate the feasibility of humanizing the bone model. The DBP-based osteo assay platforms are expected to advance bone remodeling-targeting drug development with improved prediction of clinical outcomes.
Collapse
Affiliation(s)
- Yongkuk Park
- Department of Chemical Engineering, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, 01003, USA
| | - Tadatoshi Sato
- Department of Medicine, UMass Chan Medical School, Worcester, MA, 01605, USA
| | - Jungwoo Lee
- Department of Chemical Engineering, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, 01003, USA.
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA, 01003, USA.
- Molecular & Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA, 01003, USA.
| |
Collapse
|
9
|
Borgula IM, Shuvaev S, Abston E, Rotile NJ, Weigand-Whittier J, Zhou IY, Caravan P, Raines RT. Detection of Pulmonary Fibrosis with a Collagen-Mimetic Peptide. ACS Sens 2023; 8:4008-4013. [PMID: 37930825 PMCID: PMC10842190 DOI: 10.1021/acssensors.3c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a disease of unknown etiology that is characterized by excessive deposition and abnormal remodeling of collagen. IPF has a mean survival time of only 2-5 years from diagnosis, creating a need to detect IPF at an earlier stage when treatments might be more effective. We sought to develop a minimally invasive probe that could detect molecular changes in IPF-associated collagen. Here, we describe the design, synthesis, and performance of [68Ga]Ga·DOTA-CMP, which comprises a positron-emitting radioisotope linked to a collagen-mimetic peptide (CMP). This peptide mimics the natural structure of collagen and detects irregular collagen matrices by annealing to damaged collagen triple helices. We assessed the ability of the peptide to detect aberrant lung collagen selectively in a bleomycin-induced mouse model of pulmonary fibrosis using positron emission tomography (PET). [68Ga]Ga·DOTA-CMP PET demonstrated higher and selective uptake in a fibrotic mouse lung compared to controls, minimal background signal in adjacent organs, and rapid clearance via the renal system. These studies suggest that [68Ga]Ga·DOTA-CMP identifies fibrotic lungs and could be useful in the early diagnosis of IPF.
Collapse
Affiliation(s)
- Isabella M. Borgula
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Sergey Shuvaev
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts 02124, United States
- Athinoula A. Martinos Center for Biomedical Imaging, The Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, United States
| | - Eric Abston
- Athinoula A. Martinos Center for Biomedical Imaging, The Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, United States
- Department of Thoracic Surgery, Massachusetts General Hospital, Boston, Massachusetts 02124, United States
| | - Nicholas J. Rotile
- Athinoula A. Martinos Center for Biomedical Imaging, The Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, United States
| | - Jonah Weigand-Whittier
- Athinoula A. Martinos Center for Biomedical Imaging, The Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, United States
| | - Iris Y. Zhou
- Athinoula A. Martinos Center for Biomedical Imaging, The Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, United States
| | - Peter Caravan
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts 02124, United States
- Athinoula A. Martinos Center for Biomedical Imaging, The Institute for Innovation in Imaging, Massachusetts General Hospital and Harvard Medical School, 149 Thirteenth Street, Charlestown, Massachusetts 02129, United States
| | - Ronald T. Raines
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
10
|
Qiu R, Li X, Huang K, Bai W, Zhou D, Li G, Qin Z, Li Y. Cis-trans isomerization of peptoid residues in the collagen triple-helix. Nat Commun 2023; 14:7571. [PMID: 37989738 PMCID: PMC10663571 DOI: 10.1038/s41467-023-43469-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023] Open
Abstract
Cis-peptide bonds are rare in proteins, and building blocks less favorable to the trans-conformer have been considered destabilizing. Although proline tolerates the cis-conformer modestly among all amino acids, for collagen, the most prevalent proline-abundant protein, all peptide bonds must be trans to form its hallmark triple-helix structure. Here, using host-guest collagen mimetic peptides (CMPs), we discover that surprisingly, even the cis-enforcing peptoid residues (N-substituted glycines) form stable triple-helices. Our interrogations establish that these peptoid residues entropically stabilize the triple-helix by pre-organizing individual peptides into a polyproline-II helix. Moreover, noting that the cis-demanding peptoid residues drastically reduce the folding rate, we design a CMP whose triple-helix formation can be controlled by peptoid cis-trans isomerization, enabling direct targeting of fibrotic remodeling in myocardial infarction in vivo. These findings elucidate the principles of peptoid cis-trans isomerization in protein folding and showcase the exploitation of cis-amide-favoring residues in building programmable and functional peptidomimetics.
Collapse
Affiliation(s)
- Rongmao Qiu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Xiaojing Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Kui Huang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Weizhe Bai
- Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Daoning Zhou
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China
| | - Gang Li
- Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China.
| | - Zhao Qin
- Department of Civil & Environmental Engineering, College of Engineering & Computer Science, Syracuse University, Syracuse, New York, 13244, USA.
| | - Yang Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China.
- Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China.
- Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong, 519000, China.
| |
Collapse
|
11
|
Luke EN, Bhuket PRN, Yu SM, Weiss JA. Targeting damaged collagen for intra-articular delivery of therapeutics using collagen hybridizing peptides. J Orthop Res 2023; 41:2424-2432. [PMID: 37087677 PMCID: PMC10590823 DOI: 10.1002/jor.25577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 04/10/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023]
Abstract
The objective of this study was to investigate the potential of collagen hybridizing peptides (CHPs), which bind to denatured collagen, to extend the retention time of near-infrared fluorophores (NIRF) following intra-articular (IA) injection in rat knee joints. CHPs were synthesized with a NIRF conjugated to the N-terminus. Male Sprague-Dawley rats were assigned to one of four experimental groups: healthy, CHP; osteoarthritis (OA), CHP; healthy, scrambled-sequence CHP (sCHP), which has no collagen binding affinity; or OA, sCHP. Animals in the OA groups received an IA injection of monosodium iodoacetate to induce OA. All animals then received the corresponding CHP injection. Animals were imaged repeatedly over 2 weeks using an in vivo fluorescence imaging system. Joint components were isolated and imaged to determine CHP binding distribution. Safranin-O and Fast Green histological staining was performed to confirm the development of OA. CHPs were found to be retained within the joint following IA injection in both healthy and OA animals for the full study period. In contrast, sCHP signal was negligible by 24-48 h. CHP signal was significantly greater (p < 0.05) in OA joints when compared to healthy joints. At the 2-week end point, multiple joint components retained CHPs, including cartilage, meniscus, and synovium. CHPs dramatically extended the retention time of NIRFs following IA injection in healthy and OA knee joints by binding to multiple collagenous tissues in the joint. These results support the pursuit of further research to develop CHP based therapeutics for IA treatment of OA.
Collapse
Affiliation(s)
- E. N. Luke
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
- Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, UT, USA
| | | | - S. M. Yu
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT, USA
| | - J. A. Weiss
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
- Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, UT, USA
- Department of Orthopaedics, University of Utah, Salt Lake City, UT, USA
| |
Collapse
|
12
|
Mo X, Zhao S, Zhao J, Huang Y, Li T, Zhu Y, Li G, Li Y, Shan H. Targeting collagen damage for sustained in situ antimicrobial activities. J Control Release 2023; 360:122-132. [PMID: 37321327 DOI: 10.1016/j.jconrel.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 05/26/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023]
Abstract
Antimicrobial peptides (AMPs) are promising anti-infective drugs, but their use is restricted by their short-term retention at the infection site, non-targeted uptake, and adverse effects on normal tissues. Since infection often follows an injury (e.g., in a wound bed), directly immobilizing AMPs to the damaged collagenous matrix of the injured tissues may help overcome these limitations by transforming the extracellular matrix microenvironment of the infection site into a natural reservoir of AMPs for sustained in situ release. Here, we developed and demonstrated an AMP-delivery strategy by conjugating a dimeric construct of AMP Feleucin-K3 (Flc) and a collagen hybridizing peptide (CHP), which enabled selective and prolonged anchoring of the Flc-CHP conjugate to the damaged and denatured collagen in the infected wounds in vitro and in vivo. We found that the dimeric Flc and CHP conjugate design preserved the potent and broad-spectrum antimicrobial activities of Flc while significantly enhancing and extending its antimicrobial efficacy in vivo and facilitating tissue repair in a rat wound healing model. Because collagen damage is ubiquitous in almost all injuries and infections, our strategy of targeting collagen damage may open up new avenues for antimicrobial treatments in a range of infected tissues.
Collapse
Affiliation(s)
- Xiaoyun Mo
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Suwen Zhao
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Jie Zhao
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Yongjie Huang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Tao Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Yongqiao Zhu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Gang Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Yang Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China.
| | - Hong Shan
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, and Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China; Department of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China.
| |
Collapse
|
13
|
Ganji E, Lamia SN, Stepanovich M, Whyte N, Goulet RW, Abraham AC, Killian ML. Optogenetic-induced muscle loading leads to mechanical adaptation of the Achilles tendon enthesis in mice. SCIENCE ADVANCES 2023; 9:eadf4683. [PMID: 37352350 PMCID: PMC10289645 DOI: 10.1126/sciadv.adf4683] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/17/2023] [Indexed: 06/25/2023]
Abstract
Skeletal shape depends on the transmission of contractile muscle forces from tendon to bone across the enthesis. Loss of muscle loading impairs enthesis development, yet little is known if and how the postnatal enthesis adapts to increased loading. Here, we studied adaptations in enthesis structure and function in response to increased loading, using optogenetically induced muscle contraction in young (i.e., growth) and adult (i.e., mature) mice. Daily bouts of unilateral optogenetic loading in young mice led to radial calcaneal expansion and warping. This also led to a weaker enthesis with increased collagen damage in young tendon and enthisis, with little change in adult mice. We then used RNA sequencing to identify the pathways associated with increased mechanical loading during growth. In tendon, we found enrichment of glycolysis, focal adhesion, and cell-matrix interactions. In bone, we found enrichment of inflammation and cell cycle. Together, we demonstrate the utility of optogenetic-induced muscle contraction to elicit in vivo adaptation of the enthesis.
Collapse
Affiliation(s)
- Elahe Ganji
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 North Mathews Ave., Urbana, IL 61801, USA
- Department of Biomedical Engineering, University of Delaware, 540 S. College Ave., Newark, DE 19713, USA
| | - Syeda N. Lamia
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
| | - Matthew Stepanovich
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
| | - Noelle Whyte
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
| | - Robert W. Goulet
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
| | - Adam C. Abraham
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
| | - Megan L. Killian
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Delaware, 540 S. College Ave., Newark, DE 19713, USA
| |
Collapse
|
14
|
Li X, Zhang Q, Yu SM, Li Y. The Chemistry and Biology of Collagen Hybridization. J Am Chem Soc 2023; 145:10901-10916. [PMID: 37158802 PMCID: PMC10789224 DOI: 10.1021/jacs.3c00713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Collagen provides mechanical and biological support for virtually all human tissues in the extracellular matrix (ECM). Its defining molecular structure, the triple-helix, could be damaged and denatured in disease and injuries. To probe collagen damage, the concept of collagen hybridization has been proposed, revised, and validated through a series of investigations reported as early as 1973: a collagen-mimicking peptide strand may form a hybrid triple-helix with the denatured chains of natural collagen but not the intact triple-helical collagen proteins, enabling assessment of proteolytic degradation or mechanical disruption to collagen within a tissue-of-interest. Here we describe the concept and development of collagen hybridization, summarize the decades of chemical investigations on rules underlying the collagen triple-helix folding, and discuss the growing biomedical evidence on collagen denaturation as a previously overlooked ECM signature for an array of conditions involving pathological tissue remodeling and mechanical injuries. Finally, we propose a series of emerging questions regarding the chemical and biological nature of collagen denaturation and highlight the diagnostic and therapeutic opportunities from its targeting.
Collapse
Affiliation(s)
- Xiaojing Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Department of Radiology, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - Qi Zhang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Department of Radiology, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| | - S. Michael Yu
- Department of Biomedical Engineering, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Yang Li
- Guangdong Provincial Engineering Research Center of Molecular Imaging, Department of Radiology, Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China
| |
Collapse
|
15
|
Ganji E, Lamia SN, Stepanovich M, Whyte N, Abraham AC, Killian ML. Optogenetic-Induced Muscle Loading Leads to Mechanical Adaptation of the Achilles Tendon Enthesis in Mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.11.536376. [PMID: 37090593 PMCID: PMC10120626 DOI: 10.1101/2023.04.11.536376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The growth of the skeleton depends on the transmission of contractile muscle forces from tendon to bone across the extracellular matrix-rich enthesis. Loss of muscle loading leads to significant impairments in enthesis development. However, little is known about how the enthesis responds to increased loading during postnatal growth. To study the cellular and matrix adaptations of the enthesis in response to increased muscle loading, we used optogenetics to induce skeletal muscle contraction and unilaterally load the Achilles tendon and enthesis in young (i.e., during growth) and adult (i.e., mature) mice. In young mice, daily bouts of unilateral optogenetic loading led to expansion of the calcaneal apophysis and growth plate, as well as increased vascularization of the normally avascular enthesis. Daily loading bouts, delivered for 3 weeks, also led to a mechanically weaker enthesis with increased molecular-level accumulation of collagen damage in young mice. However, adult mice did not exhibit impaired mechanical properties or noticeable structural adaptations to the enthesis. We then focused on the transcriptional response of the young tendon and bone following optogenetic-induced loading. After 1 or 2 weeks of loading, we identified, in tendon, transcriptional activation of canonical pathways related to glucose metabolism (glycolysis) and inhibited pathways associated with cytoskeletal remodeling (e.g., RHOA and CREB signaling). In bone, we identified activation of inflammatory signaling (e.g., NFkB and STAT3 signaling) and inhibition of ERK/MAPK and PTEN signaling. Thus, we have demonstrated the utility of optogenetic-induced skeletal muscle contraction to elicit structural, functional, and molecular adaptation of the enthesis in vivo especially during growth.
Collapse
Affiliation(s)
- Elahe Ganji
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, Michigan, 48109
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 North Mathews Ave., Urbana, Illinois, 61801
| | - Syeda N Lamia
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, Michigan, 48109
- Department of Mechanical Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, Michigan, 48109
| | - Matthew Stepanovich
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, Michigan, 48109
| | - Noelle Whyte
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, Michigan, 48109
| | - Adam C Abraham
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, Michigan, 48109
| | - Megan L Killian
- Department of Orthopaedic Surgery, Michigan Medicine, University of Michigan, 109 Zina Pitcher Pl., Ann Arbor, Michigan, 48109
- Department of Biomedical Engineering, University of Delaware, 540 S. College Ave., Newark, Delaware, 19713
| |
Collapse
|
16
|
Zhang Q, Li X, Huang K, Huang Y, Zhao S, Liu S, Li Y. Controlling the Trimerization of the Collagen Triple-Helix by Solvent Switching. Biomacromolecules 2023; 24:1689-1699. [PMID: 36967667 DOI: 10.1021/acs.biomac.2c01475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Collagen hybridizing peptides (CHPs) are a powerful tool for targeting collagen damage in pathological tissues due to their ability to specifically form a hybrid collagen triple-helix with the denatured collagen chains. However, CHPs have a strong tendency to self-trimerize, requiring preheating or complicated chemical modifications to dissociate their homotrimers into monomers, which hinders their applications. To control the self-assembly of CHP monomers, we evaluated the effects of 22 cosolvents on the triple-helix structure: unlike typical globular proteins, the CHP homotrimers (as well as the hybrid CHP-collagen triple helix) cannot be destabilized by the hydrophobic alcohols and detergents (e.g., SDS) but can be effectively dissociated by the cosolvents that dominate hydrogen bonds (e.g., urea, guanidinium salts, and hexafluoroisopropanol). Our study provided a reference for the solvent effects on natural collagen and a simple effective solvent-switch method, enabling CHP utilization in automated histopathology staining and in vivo imaging and targeting of collagen damage.
Collapse
|
17
|
Subrahmanyam N, Yathavan B, Yu SM, Ghandehari H. Targeting Intratibial Osteosarcoma Using Water-Soluble Copolymers Conjugated to Collagen Hybridizing Peptides. Mol Pharm 2023; 20:1670-1680. [PMID: 36724294 PMCID: PMC10799843 DOI: 10.1021/acs.molpharmaceut.2c00880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Osteosarcoma (OS) is the most common form of primary malignant bone cancer in adolescents. Over the years, OS prognosis has greatly improved due to adjuvant and neoadjuvant (preoperative) chemotherapeutic treatment, increasing the chances of successful surgery and reducing the need for limb amputation. However, chemotherapeutic treatment to treat OS is limited by off-target toxicities and requires improved localization at the tumor site. Collagen, the main constituent of bone tissue, is extensively degraded and remodeled in OS, leading to an increased availability of denatured (monomeric) collagen. Collagen hybridizing peptides (CHPs) comprise a class of peptides rationally designed to selectively bind to denatured collagen. In this work, we have conjugated CHPs as targeting moieties to water-soluble N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers to target OS tumors. We demonstrated increased accumulation of collagen-targeted HPMA copolymer-CHP conjugates compared to nontargeted HPMA copolymers, as well as increased retention compared to both nontargeted copolymers and CHPs, in a murine intratibial OS tumor model. Furthermore, we used microcomputed tomography analysis to evaluate the bone microarchitecture and correlated bone morphometric parameters (porosity, bone volume, and surface area) with maximum accumulation (Smax) and accumulation at 168 h postinjection (S168) of the copolymers at the tumor. Our results provide the foundation for the use of HPMA copolymer-CHP conjugates as targeted drug delivery systems in OS tumors.
Collapse
Affiliation(s)
- Nithya Subrahmanyam
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, Utah 84112, United States
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
| | - Bhuvanesh Yathavan
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, Utah 84112, United States
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
| | - S Michael Yu
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, Utah 84112, United States
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, United States
| | - Hamidreza Ghandehari
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, Utah 84112, United States
- Utah Center for Nanomedicine, University of Utah, Salt Lake City, Utah 84112, United States
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, United States
| |
Collapse
|
18
|
Zhao P, Sun T, Lyu C, Liang K, Niu Y, Zhang Y, Cao C, Xiang C, Du Y. Scar-Degrading Endothelial Cells as a Treatment for Advanced Liver Fibrosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2203315. [PMID: 36494102 PMCID: PMC9896053 DOI: 10.1002/advs.202203315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/21/2022] [Indexed: 05/15/2023]
Abstract
Deposition of extracellular matrix (ECM) in the liver is an important feature of liver cirrhosis. Recovery from liver cirrhosis is physiologically challenging, partially due to the ECM in scar tissue showing resistance to cell-mediated degradation by secreted matrix metalloproteinases (MMPs). Here, a cell-mediated ECM-degradation screening system (CEDSS) in vitro is constructed for high-throughput searching for cells with tremendous degradation ability. ECM-degrading liver sinusoidal endothelial cells (dLSECs) are screened using CEDSS, which exhibit 17 times the ability to degrade collagen when compared to other cells. The degradation ability of dLSECs is mediated by the upregulation of MMP9. In particular, mRNA expression of MMP9 shows an 833-fold increase in dLSECs compared to normal endothelial cells (nLSECs), and MMP9 is regulated by transcription factor c-Fos. In vivo, single intrasplenic injection of dLSECs alleviates advanced liver fibrosis in mice, while intraperitoneal administration of liver-targeting peptide-modified dLSECs shows enhanced fibrosis-targeting effects. Degradative human umbilical vein endothelial cells (dHUVECs) prove their enhanced potential of clinical translation. Together, these results highlight the potential of ECM-degrading endothelial cells in alleviating advanced liver fibrosis, thus providing remarkable insights in the development of ECM-targeting therapeutics.
Collapse
Affiliation(s)
- Peng Zhao
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Tian Sun
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Cheng Lyu
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Kaini Liang
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Yudi Niu
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Yuying Zhang
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Chenhui Cao
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Canhong Xiang
- Department of Hepatobiliary SurgeryBeijing Tsinghua Changgung HospitalBeijing100084China
| | - Yanan Du
- Department of Biomedical EngineeringSchool of MedicineTsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| |
Collapse
|
19
|
Subrahmanyam N, Yathavan B, Kessler J, Yu SM, Ghandehari H. HPMA copolymer-collagen hybridizing peptide conjugates targeted to breast tumor extracellular matrix. J Control Release 2023; 353:278-288. [PMID: 36244509 PMCID: PMC10799842 DOI: 10.1016/j.jconrel.2022.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 10/04/2022] [Accepted: 10/09/2022] [Indexed: 12/03/2022]
Abstract
The extracellular matrix (ECM) is dynamically involved in many aspects of cell growth and survival, and it plays an active role in cancer etiology. In comparison to healthy ECM, tumor associated ECM shows high collagen deposition and remodeling activity, which results in an increased amount of denatured collagen strands in tumor tissues. Capitalizing on this distinguishing feature, we developed tumor-localizing polymeric carriers that selectively bind to denatured collagen in the tumor ECM. We synthesized N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers with their side chains conjugated to collagen hybridizing peptides (CHPs). HPMA copolymer-CHP conjugates exhibited selective affinity to denatured collagen and localized to tumors in an orthotopic MDA-MB-231 murine breast cancer model. The conjugates had increased tumor localization compared to copolymers with scrambled peptides in the side chains, as well as increased retention compared to free CHPs. Such conjugates show promise as carriers for ECM-acting drugs and imaging agents in the management of diseases characterized by high ECM remodeling activity.
Collapse
Affiliation(s)
- Nithya Subrahmanyam
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112 United States of America; Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT 84112, United States of America
| | - Bhuvanesh Yathavan
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112 United States of America; Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT 84112, United States of America
| | - Julian Kessler
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, United States of America
| | - S Michael Yu
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112 United States of America; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, United States of America.
| | - Hamidreza Ghandehari
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112 United States of America; Utah Center for Nanomedicine, University of Utah, Salt Lake City, UT 84112, United States of America; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, United States of America.
| |
Collapse
|
20
|
Siminzar P, Tohidkia MR, Eppard E, Vahidfar N, Tarighatnia A, Aghanejad A. Recent Trends in Diagnostic Biomarkers of Tumor Microenvironment. Mol Imaging Biol 2022; 25:464-482. [PMID: 36517729 DOI: 10.1007/s11307-022-01795-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
The tumor microenvironment (TME) play critical roles in tumor survival, progression, and metastasis and can be considered potential targets for molecular imaging of cancer. The targeting agents for imaging of TME components (e.g., fibroblasts, mesenchymal stromal cells, immune cells, extracellular matrix, blood vessels) provide a promising strategy to target these biomarkers for the early diagnosis of cancers. Moreover, various cancer types have similar tumor immune microenvironment (TIME) features that targeting those biomarkers and offer clinically translatable molecular imaging of cancers. In this review, we categorize and summarize the components in TME which have been targeted for molecular imaging. Moreover, this review updated the recent progress in targeted imaging of TIME biological molecules by various modalities for the early detection of cancer.
Collapse
|
21
|
Gueta O, Amiram M. Expanding the chemical repertoire of protein-based polymers for drug-delivery applications. Adv Drug Deliv Rev 2022; 190:114460. [PMID: 36030987 DOI: 10.1016/j.addr.2022.114460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/12/2022] [Indexed: 01/24/2023]
Abstract
Expanding the chemical repertoire of natural and artificial protein-based polymers (PBPs) can enable the production of sequence-defined, yet chemically diverse, biopolymers with customized or new properties that cannot be accessed in PBPs composed of only natural amino acids. Various approaches can enable the expansion of the chemical repertoire of PBPs, including chemical and enzymatic treatments or the incorporation of unnatural amino acids. These techniques are employed to install a wide variety of chemical groups-such as bio-orthogonally reactive, cross-linkable, post-translation modifications, and environmentally responsive groups-which, in turn, can facilitate the design of customized PBP-based drug-delivery systems with modified, fine-tuned, or entirely new properties and functions. Here, we detail the existing and emerging technologies for expanding the chemical repertoire of PBPs and review several chemical groups that either demonstrate or are anticipated to show potential in the design of PBP-based drug delivery systems. Finally, we provide our perspective on the remaining challenges and future directions in this field.
Collapse
Affiliation(s)
- Osher Gueta
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel
| | - Miriam Amiram
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel.
| |
Collapse
|
22
|
Malcor JD, Mallein-Gerin F. Biomaterial functionalization with triple-helical peptides for tissue engineering. Acta Biomater 2022; 148:1-21. [PMID: 35675889 DOI: 10.1016/j.actbio.2022.06.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/09/2022] [Accepted: 06/01/2022] [Indexed: 11/29/2022]
Abstract
In the growing field of tissue engineering, providing cells in biomaterials with the adequate biological cues represents an increasingly important challenge. Yet, biomaterials with excellent mechanical properties often are often biologically inert to many cell types. To address this issue, researchers resort to functionalization, i.e. the surface modification of a biomaterial with active molecules or substances. Functionalization notably aims to replicate the native cellular microenvironment provided by the extracellular matrix, and in particular by collagen, its major component. As our understanding of biological processes regulating cell behaviour increases, functionalization with biomolecules binding cell surface receptors constitutes a promising strategy. Amongst these, triple-helical peptides (THPs) that reproduce the architectural and biological properties of collagen are especially attractive. Indeed, THPs containing binding sites from the native collagen sequence have successfully been used to guide cell response by establishing cell-biomaterial interactions. Notably, the GFOGER motif recognising the collagen-binding integrins is extensively employed as a cell adhesive peptide. In biomaterials, THPs efficiently improved cell adhesion, differentiation and function on biomaterials designed for tissue repair (especially for bone, cartilage, tendon and heart), vascular graft fabrication, wound dressing, drug delivery or immunomodulation. This review describes the key characteristics of THPs, their effect on cells when combined to biomaterials and their strong potential as biomimetic tools for regenerative medicine. STATEMENT OF SIGNIFICANCE: This review article describes how triple-helical peptides constitute efficient tools to improve cell-biomaterial interactions in tissue engineering. Triple helical peptides are bioactive molecules that mimic the architectural and biological properties of collagen. They have been successfully used to specifically recognize cell-surface receptors and provide cells seeded on biomaterials with controlled biological cues. Functionalization with triple-helical peptides has enabled researchers to improve cell function for regenerative medicine applications, such as tissue repair. However, despite encouraging results, this approach remains limited and under-exploited, and most functionalization strategies reported in the literature rely on biomolecules that are unable to address collagen-binding receptors. This review will assist researchers in selecting the correct tools to functionalize biomaterials in efforts to guide cellular response.
Collapse
Affiliation(s)
- Jean-Daniel Malcor
- Laboratory of Tissue Biology and Therapeutic Engineering, CNRS UMR 5305, University Claude Bernard-Lyon 1 and University of Lyon, 7 Passage du Vercors, Cedex 07, Lyon 69367, France.
| | - Frédéric Mallein-Gerin
- Laboratory of Tissue Biology and Therapeutic Engineering, CNRS UMR 5305, University Claude Bernard-Lyon 1 and University of Lyon, 7 Passage du Vercors, Cedex 07, Lyon 69367, France
| |
Collapse
|
23
|
Chattopadhyay S, Teixeira LBC, Kiessling LL, McAnulty JF, Raines RT. Bifunctional Peptide that Anneals to Damaged Collagen and Clusters TGF-β Receptors Enhances Wound Healing. ACS Chem Biol 2022; 17:314-321. [PMID: 35084170 DOI: 10.1021/acschembio.1c00745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transforming growth factor-β (TGF-β) plays important roles in wound healing. The activity of TGF-β is initiated upon the binding of the growth factor to the extracellular domains of its receptors. We sought to facilitate the activation by clustering these extracellular domains. To do so, we used a known peptide that binds to TGF-β receptors without diminishing their affinity for TGF-β. We conjugated this peptide to a collagen-mimetic peptide that can anneal to the damaged collagen in a wound bed. We find that the conjugate enhances collagen deposition and wound closure in mice in a manner consistent with the clustering of TGF-β receptors. This strategy provides a means to upregulate the TGF-β signaling pathway without adding exogenous TGF-β and could inspire means to treat severe wounds.
Collapse
Affiliation(s)
- Sayani Chattopadhyay
- Department of Chemistry, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | - Leandro B. C. Teixeira
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | - Laura L. Kiessling
- Department of Chemistry, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
- Department of Biochemistry, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jonathan F. McAnulty
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | - Ronald T. Raines
- Department of Chemistry, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
- Department of Biochemistry, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
24
|
Jones B, Debski A, Hans CP, Go MR, Agarwal G. Structurally abnormal collagen fibrils in abdominal aortic aneurysm resist platelet adhesion. J Thromb Haemost 2022; 20:470-477. [PMID: 34714974 DOI: 10.1111/jth.15576] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/16/2021] [Accepted: 10/27/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Platelet adhesion to the subendothelial collagen fibrils is one of the first steps in hemostasis. Understanding how structural perturbations in the collagen fibril affect platelet adhesion can provide novel insights into disruption of hemostasis in various diseases. We have recently identified the presence of abnormal collagen fibrils with compromised D-periodic banding in the extracellular matrix remodeling present in abdominal aortic aneurysms (AAA). OBJECTIVE In this study, we employed multimodal microscopy approaches to characterize how collagen fibril structure impacts platelet adhesion in clinical AAA tissues. METHODS Ultrastructural atomic force microscopy (AFM) analysis was performed on tissue sections after staining with fluorescently labeled collagen hybridizing peptide (CHP) to recognize degraded collagen. Second harmonic generation (SHG) microscopy was used on CHP-stained sections to identify regions of intact versus degraded collagen. Finally, platelet adhesion was identified via SHG and indirect immunofluorescence on the same tissue sections. RESULTS Our results indicate that ultrastructural features characterizing collagen fibril abnormalities coincide with CHP staining. SHG signal was absent from CHP-positive regions. Additionally, platelet binding was primarily localized to regions with SHG signal. Abnormal collagen fibrils present in AAA (in SHG negative regions) were thus found to inhibit platelet adhesion compared to normal fibrils. CONCLUSIONS Our investigations reveal how the collagen fibril structure in the vessel wall can serve as another regulator of platelet-collagen adhesion. These results can be broadly applied to understand the role of collagen fibril structure in regulating thrombosis or bleeding disorders.
Collapse
Affiliation(s)
- Blain Jones
- Biomedical Engineering Graduate Program, The Ohio State University, Columbus, Ohio, USA
| | - Anna Debski
- Department of Material Science and Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Chetan P Hans
- Department of Cardiovascular Medicine, Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri, USA
| | - Michael R Go
- Division of Vascular Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Gunjan Agarwal
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, Ohio, USA
| |
Collapse
|
25
|
Qi Y, Zhou D, Kessler JL, Qiu R, Yu SM, Li G, Qin Z, Li Y. Terminal repeats impact collagen triple-helix stability through hydrogen bonding. Chem Sci 2022; 13:12567-12576. [PMID: 36382282 PMCID: PMC9629113 DOI: 10.1039/d2sc03666e] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/10/2022] [Indexed: 11/22/2022] Open
Abstract
Nearly 30% of human proteins have tandem repeating sequences. Structural understanding of the terminal repeats is well-established for many repeat proteins with the common α-helix and β-sheet foldings. By contrast, the sequence–structure interplay of the terminal repeats of the collagen triple-helix remains to be fully explored. As the most abundant human repeat protein and the most prevalent structural component of the extracellular matrix, collagen features a hallmark triple-helix formed by three supercoiled polypeptide chains of long repeating sequences of the Gly–X–Y triplets. Here, with CD characterization of 28 collagen-mimetic peptides (CMPs) featuring various terminal motifs, as well as DSC measurements, crystal structure analysis, and computational simulations, we show that CMPs only differing in terminal repeat may have distinct end structures and stabilities. We reveal that the cross-chain hydrogen bonding mediated by the terminal repeat is key to maintaining the triple-helix's end structure, and that disruption of it with a single amide to carboxylate substitution can lead to destabilization as drastic as 19 °C. We further demonstrate that the terminal repeat also impacts how strong the CMP strands form hybrid triple-helices with unfolded natural collagen chains in tissue. Our findings provide a spatial profile of hydrogen bonding within the CMP triple-helix, marking a critical guideline for future crystallographic or NMR studies of collagen, and algorithms for predicting triple-helix stability, as well as peptide-based collagen assemblies and materials. This study will also inspire new understanding of the sequence–structure relationship of many other complex structural proteins with repeating sequences. Collagen mimetic peptides (CMPs) only differing in terminal repeat have distinct stabilities and end structures due to a spatial hydrogen bonding profile that is useful for future crystallography, algorithm prediction, and materials of collagen.![]()
Collapse
Affiliation(s)
- Yingying Qi
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Daoning Zhou
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Julian L. Kessler
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Rongmao Qiu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - S. Michael Yu
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Gang Li
- Cardiac Surgery and Structural Heart Disease Unit of Cardiovascular Center, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Zhao Qin
- Department of Civil & Environmental Engineering, College of Engineering & Computer Science, Syracuse University, Syracuse, New York 13244, USA
| | - Yang Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| |
Collapse
|
26
|
Liu L, Huang K, Li W, Qiu R, Fang Y, Huang Y, Zhao S, Lv H, Zhang K, Shan H, Li Y. Molecular Imaging of Collagen Destruction of the Spine. ACS NANO 2021; 15:19138-19149. [PMID: 34738460 DOI: 10.1021/acsnano.1c07112] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As the leading cause of disability worldwide, low back pain is commonly caused by biomechanical and catabolic disruptions to key structures of the spine, such as intervertebral discs and facet joints. To date, accurate, noninvasive detection of microdestruction within these tissues remains an elusive goal. Here, we report an in vivo imaging approach based on a collagen hybridizing peptide (CHP) that specifically targets disruption to the extracellular matrix architecture at the molecular scale─the denatured collagen molecules. Utilizing fluorescently labeled CHPs, live animal imaging, and light sheet fluorescence microscopy, we mapped collagen destruction in the lumbar spines in 3D, revealing that under normal conditions collagen destruction was localized to load-bearing anatomical structures including annulus fibrosus of the disc and the facet joints, where aging, tensile force (hindlimb suspension), and disc degeneration (needle puncture) escalated the CHP-binding in specific mouse models. We showed that targeting denatured collagen molecules allowed for an accurate, quantifiable interrogation of the structural integrity of these spinal matrixes with a greater sensitivity than anatomical imaging and histology. Finally, we demonstrated CHP's binding to degenerated human discs, suggesting exciting potentials for applying CHP for diagnosing, monitoring, and treating various spinal disorders, including intervertebral disc degeneration, facet joint osteoarthritis, and ankylosing spondylitis.
Collapse
Affiliation(s)
- Lei Liu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Department of Spine Surgery, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Kui Huang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Wei Li
- Department of Pathology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Rongmao Qiu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Yijie Fang
- Department of Radiology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Yongjie Huang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Suwen Zhao
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Hai Lv
- Department of Spine Surgery, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Kuibo Zhang
- Department of Spine Surgery, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Hong Shan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
- Department of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Yang Li
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| |
Collapse
|
27
|
Dunshee LC, Sullivan MO, Kiick KL. Therapeutic nanocarriers comprising extracellular matrix-inspired peptides and polysaccharides. Expert Opin Drug Deliv 2021; 18:1723-1740. [PMID: 34696691 PMCID: PMC8601199 DOI: 10.1080/17425247.2021.1988925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The extracellular matrix (ECM) is vital for cell and tissue development. Given its importance, extensive work has been conducted to develop biomaterials and drug delivery vehicles that capture features of ECM structure and function. AREAS COVERED This review highlights recent developments of ECM-inspired nanocarriers and their exploration for drug and gene delivery applications. Nanocarriers that are inspired by or created from primary components of the ECM (e.g. elastin, collagen, hyaluronic acid (HA), or combinations of these) are explicitly covered. An update on current clinical trials employing elastin-like proteins is also included. EXPERT OPINION Novel ECM-inspired nanoscale structures and conjugates continue to be of great interest in the materials science and bioengineering communities. Hyaluronic acid nanocarrier systems in particular are widely employed due to the functional activity of HA in mediating a large number of disease states. In contrast, collagen-like peptide nanocarriers are an emerging drug delivery platform with potential relevance to a myriad of ECM-related diseases, making their continued study most pertinent. Elastin-like peptide nanocarriers have a well-established tolerability and efficacy track record in preclinical analyses that has motivated their recent advancement into the clinical arena.
Collapse
Affiliation(s)
- Lucas C Dunshee
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
| | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA
| | - Kristi L Kiick
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
| |
Collapse
|
28
|
Goudar VS, Koduri MP, Ta YNN, Chen Y, Chu LA, Lu LS, Tseng FG. Impact of a Desmoplastic Tumor Microenvironment for Colon Cancer Drug Sensitivity: A Study with 3D Chimeric Tumor Spheroids. ACS APPLIED MATERIALS & INTERFACES 2021; 13:48478-48491. [PMID: 34633791 DOI: 10.1021/acsami.1c18249] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Three-dimensional (3D) spheroid culture provides opportunities to model tumor growth closer to its natural context. The collagen network in the extracellular matrix supports autonomic tumor cell proliferation, but its presence and role in tumor spheroids remain unclear. In this research, we developed an in vitro 3D co-culture model in a microwell 3D (μ-well 3D) cell-culture array platform to mimic the tumor microenvironment (TME). The modular setup is used to characterize the paracrine signaling molecules and the role of the intraspheroidal collagen network in cancer drug resistance. The μ-well 3D platform is made up of poly(dimethylsiloxane) that contains 630 round wells for individual spheroid growth. Inside each well, the growth surface measured 500 μm in diameter and was functionalized with the amphiphilic copolymer. HCT-8 colon cancer cells and/or NIH3T3 fibroblasts were seeded in each well and incubated for up to 9 days for TME studies. It was observed that NIH3T3 cells promoted the kinetics of tumor organoid formation. The two types of cells self-organized into core-shell chimeric tumor spheroids (CTSs) with fibroblasts confined to the shell and cancer cells localized to the core. Confocal microscopy analysis indicated that a type-I collagen network developed inside the CTS along with increased TGF-β1 and α-SMA proteins. The results were correlated with a significantly increased stiffness in 3D co-cultured CTS up to 52 kPa as compared to two-dimensional (2D) co-culture. CTS was more resistant to 5-FU (IC50 = 14.0 ± 3.9 μM) and Regorafenib (IC50 = 49.8 ± 9.9 μM) compared to cells grown under the 2D condition 5-FU (IC50 = 12.2 ± 3.7 μM) and Regorafenib (IC50 = 5.9 ± 1.9 μM). Targeted collagen homeostasis with Sclerotiorin led to damaged collagen structure and disrupted the type-I collagen network within CTS. Such a treatment significantly sensitized collagen-supported CTS to 5-FU (IC50 = 4.4 ± 1.3 μM) and to Regorafenib (IC50 = 0.5 ± 0.2 μM). In summary, the efficient formation of colon cancer CTSs in a μ-well 3D culture platform allows exploration of the desmoplastic TME. The novel role of intratumor collagen quality as a drug sensitization target warrants further investigation.
Collapse
Affiliation(s)
- Venkanagouda S Goudar
- Department of Engineering and System Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Manohar Prasad Koduri
- International Intercollegiate Ph.D. Program, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
- Department of Mechanical, Materials, and Aerospace, School of Engineering, University of Liverpool, Harrison Hughes Building, Liverpool L693GH, U.K
| | - Yen-Nhi Ngoc Ta
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Yunching Chen
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Li-An Chu
- Department of Biomedical and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
- Brain Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Long-Sheng Lu
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan, ROC
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan, ROC
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan, ROC
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan, ROC
| | - Fan-Gang Tseng
- Department of Engineering and System Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
- International Intercollegiate Ph.D. Program, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan, ROC
| |
Collapse
|
29
|
Iwahashi H, Kawashima Y, Masaki H. Decreased levels of endocytic collagen receptor Endo180 in dermal fibroblasts lead to decreased production of type I collagen and increased expression of matrix metalloproteinase-1. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2021; 38:150-157. [PMID: 34469613 PMCID: PMC9291200 DOI: 10.1111/phpp.12728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 06/24/2021] [Accepted: 08/29/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Endo180 is involved in collagen remodeling by incorporating extracellular degraded collagen. Ultraviolet irradiation of dermal fibroblasts reduces Endo180 expression, which affects collagen fiber remodeling. However, it is unclear whether the decrease in Endo180 is directly related to the decrease in type I collagen fibers during photoaging. We aimed to clarify the relationship between Endo180 reduction and the decrease in type I collagen fibers observed in photoaged dermis. METHODS Endo180 was reduced in normal human dermal fibroblasts using RNAi. Endo180 knockdown cells were inoculated into collagen gels. The influence of Endo180 knockdown was evaluated by measuring mRNA expression of collagen fiber remodeling-related factors and collagen gel contraction. The collagen state and oxidative stress in the collagen gels were also measured. RESULTS Endo180 knockdown cells, which were confirmed by gelatin uptake inhibition, showed upregulation of matrix metalloproteinase-1 and downregulation of type I collagen mRNA expression when cultured in collagen gels. The contractility of the collagen gel was reduced by Endo180 knockdown. The collagen state in the extracellular matrix of the collagen gels containing Endo180 knockdown fibroblasts showed increased amounts of 3/4 fragmented collagen and denatured collagen and decreased type I collagen synthesis. In addition, an increase in intracellular oxidative stress was observed. CONCLUSIONS This study confirmed that the decrease in Endo180 caused a failure in collagen fiber formation and a decrease in collagen production, reproducing the photoaging dermal structural changes. This suggests that the decrease in Endo180 may be involved in wrinkle formation, which is a characteristic of photoaged skin.
Collapse
Affiliation(s)
- Hiroyasu Iwahashi
- Research Center, Maruzen Pharmaceuticals Co. Ltd., Fukuyama City, Japan
| | | | - Hitoshi Masaki
- Laboratory of Photoaging Research, School of Bioscience and Biotechnology, Tokyo University of Technology, Hachioji City, Japan
| |
Collapse
|
30
|
Aronoff MR, Hiebert P, Hentzen NB, Werner S, Wennemers H. Imaging and targeting LOX-mediated tissue remodeling with a reactive collagen peptide. Nat Chem Biol 2021; 17:865-871. [PMID: 34253910 DOI: 10.1038/s41589-021-00830-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
Collagens are fibrous proteins that are integral to the strength and stability of connective tissues. During collagen maturation, lysyl oxidases (LOX) initiate the cross-linking of fibers, but abnormal LOX activity is associated with impaired tissue function as seen in fibrotic and malignant diseases. Visualizing and targeting this dynamic process in healthy and diseased tissue is important, but so far not feasible. Here we present a probe for the simultaneous monitoring and targeting of LOX-mediated collagen cross-linking that combines a LOX-activity sensor with a collagen peptide to chemoselectively target endogenous aldehydes generated by LOX. This synergistic probe becomes covalently anchored and lights up in vivo and in situ in response to LOX at the sites where cross-linking occurs, as demonstrated by staining of normal skin and cancer sections. We anticipate that our reactive collagen-based sensor will improve understanding of collagen remodeling and provide opportunities for the diagnosis of fibrotic and malignant diseases.
Collapse
Affiliation(s)
| | - Paul Hiebert
- Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland
| | - Nina B Hentzen
- Laboratory of Organic Chemistry, ETH Zurich, Zurich, Switzerland
| | - Sabine Werner
- Institute of Molecular Health Sciences, ETH Zurich, Zurich, Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, ETH Zurich, Zurich, Switzerland.
| |
Collapse
|
31
|
Abstract
The extracellular matrix is a fundamental, core component of all tissues and organs, and is essential for the existence of multicellular organisms. From the earliest stages of organism development until death, it regulates and fine-tunes every cellular process in the body. In cancer, the extracellular matrix is altered at the biochemical, biomechanical, architectural and topographical levels, and recent years have seen an exponential increase in the study and recognition of the importance of the matrix in solid tumours. Coupled with the advancement of new technologies to study various elements of the matrix and cell-matrix interactions, we are also beginning to see the deployment of matrix-centric, stromal targeting cancer therapies. This Review touches on many of the facets of matrix biology in solid cancers, including breast, pancreatic and lung cancer, with the aim of highlighting some of the emerging interactions of the matrix and influences that the matrix has on tumour onset, progression and metastatic dissemination, before summarizing the ongoing work in the field aimed at developing therapies to co-target the matrix in cancer and cancer metastasis.
Collapse
Affiliation(s)
- Thomas R Cox
- The Kinghorn Cancer Centre, The Garvan Institute of Medical Research, Sydney, New South Wales, Australia.
- St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia.
| |
Collapse
|
32
|
Harnessing Extracellular Matrix Biology for Tumor Drug Delivery. J Pers Med 2021; 11:jpm11020088. [PMID: 33572559 PMCID: PMC7911184 DOI: 10.3390/jpm11020088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 12/21/2022] Open
Abstract
The extracellular matrix (ECM) plays an active role in cell life through a tightly controlled reciprocal relationship maintained by several fibrous proteins, enzymes, receptors, and other components. It is also highly involved in cancer progression. Because of its role in cancer etiology, the ECM holds opportunities for cancer therapy on several fronts. There are targets in the tumor-associated ECM at the level of signaling molecules, enzyme expression, protein structure, receptor interactions, and others. In particular, the ECM is implicated in invasiveness of tumors through its signaling interactions with cells. By capitalizing on the biology of the tumor microenvironment and the opportunities it presents for intervention, the ECM has been investigated as a therapeutic target, to facilitate drug delivery, and as a prognostic or diagnostic marker for tumor progression and therapeutic intervention. This review summarizes the tumor ECM biology as it relates to drug delivery with emphasis on design parameters targeting the ECM.
Collapse
|
33
|
Park Y, Cheong E, Kwak JG, Carpenter R, Shim JH, Lee J. Trabecular bone organoid model for studying the regulation of localized bone remodeling. SCIENCE ADVANCES 2021; 7:eabd6495. [PMID: 33523925 PMCID: PMC7817107 DOI: 10.1126/sciadv.abd6495] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/02/2020] [Indexed: 05/08/2023]
Abstract
Trabecular bone maintains physiological homeostasis and consistent structure and mass through repeated cycles of bone remodeling by means of tightly localized regulation. The molecular and cellular processes that regulate localized bone remodeling are poorly understood because of a lack of relevant experimental models. A tissue-engineered model is described here that reproduces bone tissue complexity and bone remodeling processes with high fidelity and control. An osteoid-inspired biomaterial-demineralized bone paper-directs osteoblasts to deposit structural mineralized bone tissue and subsequently acquire the resting-state bone lining cell phenotype. These cells activate and shift their secretory profile to induce osteoclastogenesis in response to chemical stimulation. Quantitative spatial mapping of cellular activities in resting and activated bone surface coculture showed that the resting-state bone lining cell network actively directs localized bone remodeling by means of paracrine signaling and cell-to-cell contact. This model may facilitate further investigation of trabecular bone niche biology.
Collapse
Affiliation(s)
- Yongkuk Park
- Department of Chemical Engineering, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Eugene Cheong
- Department of Biochemistry and Molecular Biology, University of Massachusetts, Amherst, MA 01003, USA
| | - Jun-Goo Kwak
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
| | - Ryan Carpenter
- Department of Chemical Engineering, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Jae-Hyuck Shim
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Jungwoo Lee
- Department of Chemical Engineering, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA 01003, USA.
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
| |
Collapse
|
34
|
Cai X, Wei W, Liu Z, Bai Z, Lei J, Xiao J. In Situ Imaging of Pathological Collagen by Electrostatic Repulsion-Destabilized Peptide Probes. ACS APPLIED BIO MATERIALS 2020; 3:7492-7499. [DOI: 10.1021/acsabm.0c00710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangdong Cai
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wenyu Wei
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhao Liu
- The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
| | - Zhongtian Bai
- The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
| | - Junqiang Lei
- The First Hospital of Lanzhou University, Lanzhou 730000, P. R. China
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
35
|
Vogel S, Ullm F, Damaris Müller C, Pompe T, Hempel U. Remodeling of Three-Dimensional Collagen I Matrices by Human Bone Marrow Stromal Cells during Osteogenic Differentiation In Vitro. ACS APPLIED BIO MATERIALS 2020; 3:6967-6978. [DOI: 10.1021/acsabm.0c00856] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sarah Vogel
- Institute of Physiological Chemistry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Fiedlerstrasse 42, Dresden 01307, Germany
| | - Franziska Ullm
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Johannisallee 21-23, Leipzig 04103, Germany
| | - Claudia Damaris Müller
- Institute of Physiological Chemistry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Fiedlerstrasse 42, Dresden 01307, Germany
| | - Tilo Pompe
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Johannisallee 21-23, Leipzig 04103, Germany
| | - Ute Hempel
- Institute of Physiological Chemistry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Fiedlerstrasse 42, Dresden 01307, Germany
| |
Collapse
|
36
|
Ellison AJ, Dempwolff F, Kearns DB, Raines RT. Role for Cell-Surface Collagen of Streptococcus pyogenes in Infections. ACS Infect Dis 2020; 6:1836-1843. [PMID: 32413256 DOI: 10.1021/acsinfecdis.0c00073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Group A Streptococcus (GAS) displays cell-surface proteins that resemble human collagen. We find that a fluorophore-labeled collagen mimetic peptide (CMP) labels GAS cells but not Escherichia coli or Bacillus subtilis cells, which lack such proteins. The CMP likely engages in a heterotrimeric helix with endogenous collagen, as the nonnatural d enantiomer of the CMP does not label GAS cells. To identify a molecular target, we used reverse genetics to "knock-in" the GAS genes that encode two proteins with collagen-like domains, Scl1 and Scl2, into B. subtilis. The fluorescent CMP labels the cells of these B. subtilis strains. Moreover, these strains bind tightly to a surface of mammalian collagen. These data are consistent with streptococcal collagen forming triple helices with damaged collagen in a wound bed and thus have implications for microbial virulence.
Collapse
Affiliation(s)
| | - Felix Dempwolff
- Department of Biology, Indiana University, Bloomington, Indiana 47405, United States
| | - Daniel B. Kearns
- Department of Biology, Indiana University, Bloomington, Indiana 47405, United States
| | - Ronald T. Raines
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
37
|
Welsh RA, Song N, Foss CA, Boronina T, Cole RN, Sadegh-Nasseri S. Lack of the MHC class II chaperone H2-O causes susceptibility to autoimmune diseases. PLoS Biol 2020; 18:e3000590. [PMID: 32069316 PMCID: PMC7028248 DOI: 10.1371/journal.pbio.3000590] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 01/13/2020] [Indexed: 01/14/2023] Open
Abstract
DO (HLA-DO, in human; murine H2-O) is a highly conserved nonclassical major histocompatibility complex class II (MHC II) accessory molecule mainly expressed in the thymic medulla and B cells. Previous reports have suggested possible links between DO and autoimmunity, Hepatitis C (HCV) infection, and cancer, but the mechanism of how DO contributes to these diseases remains unclear. Here, using a combination of various in vivo approaches, including peptide elution, mixed lymphocyte reaction, T-cell receptor (TCR) deep sequencing, tetramer-guided naïve CD4 T-cell precursor enumeration, and whole-body imaging, we report that DO affects the repertoire of presented self-peptides by B cells and thymic epithelium. DO induces differential effects on epitope presentation and thymic selection, thereby altering CD4 T-cell precursor frequencies. Our findings were validated in two autoimmune disease models by demonstrating that lack of DO increases autoreactivity and susceptibility to autoimmune disease development. A combination of cellular, molecular and in vivo approaches reveals that the non-classical MHC class II chaperone DO controls CD4 T cell thymic selection; its absence leads to susceptibility to two murine autoimmune diseases, collagen-induced arthritis and experimental autoimmune encephalomyelitis.
Collapse
Affiliation(s)
- Robin A. Welsh
- Graduate Program in Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Nianbin Song
- Graduate Program in Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Catherine A. Foss
- Russel H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Tatiana Boronina
- Mass Spectrometry and Proteomics Core, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Robert N. Cole
- Mass Spectrometry and Proteomics Core, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Scheherazade Sadegh-Nasseri
- Graduate Program in Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
| |
Collapse
|
38
|
Varanko A, Saha S, Chilkoti A. Recent trends in protein and peptide-based biomaterials for advanced drug delivery. Adv Drug Deliv Rev 2020; 156:133-187. [PMID: 32871201 PMCID: PMC7456198 DOI: 10.1016/j.addr.2020.08.008] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/14/2020] [Accepted: 08/14/2020] [Indexed: 02/07/2023]
Abstract
Engineering protein and peptide-based materials for drug delivery applications has gained momentum due to their biochemical and biophysical properties over synthetic materials, including biocompatibility, ease of synthesis and purification, tunability, scalability, and lack of toxicity. These biomolecules have been used to develop a host of drug delivery platforms, such as peptide- and protein-drug conjugates, injectable particles, and drug depots to deliver small molecule drugs, therapeutic proteins, and nucleic acids. In this review, we discuss progress in engineering the architecture and biological functions of peptide-based biomaterials -naturally derived, chemically synthesized and recombinant- with a focus on the molecular features that modulate their structure-function relationships for drug delivery.
Collapse
Affiliation(s)
| | | | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
| |
Collapse
|
39
|
Dones JM, Tanrikulu IC, Chacko JV, Schroeder AB, Hoang TT, Gibson ALF, Eliceiri KW, Raines RT. Optimization of interstrand interactions enables burn detection with a collagen-mimetic peptide. Org Biomol Chem 2019; 17:9906-9912. [PMID: 31720665 DOI: 10.1039/c9ob01839e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Collagen is an abundant component of the extracellular matrix and connective tissues. Some collagen-mimetic peptides (CMPs) that do not form homotrimers can anneal to damaged tissue. Here, through a computational screen, we identify (flpHypGly)7 as an optimal monomeric CMP for heterotrimer formation. We find that (flpHypGly)7 forms stable triple helices with (ProProGly)7 but not with itself. The nonnatural amino acid HflpOH, which is (2S,4S)-4-fluoroproline, is not toxic to human fibroblasts or keratinocytes. Conjugation of (flpHypGly)7 to a fluorescent dye enables the facile detection of burned collagenous tissue with high specificity. The ubiquity of collagen and the prevalence of injuries and diseases that disrupt endogenous collagen suggests widespread utility for this approach.
Collapse
Affiliation(s)
- Jesús M Dones
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Sis MJ, Webber MJ. Drug Delivery with Designed Peptide Assemblies. Trends Pharmacol Sci 2019; 40:747-762. [DOI: 10.1016/j.tips.2019.08.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/07/2019] [Accepted: 08/08/2019] [Indexed: 12/18/2022]
|
41
|
Xu S, Xu H, Wang W, Li S, Li H, Li T, Zhang W, Yu X, Liu L. The role of collagen in cancer: from bench to bedside. J Transl Med 2019; 17:309. [PMID: 31521169 PMCID: PMC6744664 DOI: 10.1186/s12967-019-2058-1] [Citation(s) in RCA: 404] [Impact Index Per Article: 80.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/06/2019] [Indexed: 02/06/2023] Open
Abstract
Collagen is the major component of the tumor microenvironment and participates in cancer fibrosis. Collagen biosynthesis can be regulated by cancer cells through mutated genes, transcription factors, signaling pathways and receptors; furthermore, collagen can influence tumor cell behavior through integrins, discoidin domain receptors, tyrosine kinase receptors, and some signaling pathways. Exosomes and microRNAs are closely associated with collagen in cancer. Hypoxia, which is common in collagen-rich conditions, intensifies cancer progression, and other substances in the extracellular matrix, such as fibronectin, hyaluronic acid, laminin, and matrix metalloproteinases, interact with collagen to influence cancer cell activity. Macrophages, lymphocytes, and fibroblasts play a role with collagen in cancer immunity and progression. Microscopic changes in collagen content within cancer cells and matrix cells and in other molecules ultimately contribute to the mutual feedback loop that influences prognosis, recurrence, and resistance in cancer. Nanoparticles, nanoplatforms, and nanoenzymes exhibit the expected gratifying properties. The pathophysiological functions of collagen in diverse cancers illustrate the dual roles of collagen and provide promising therapeutic options that can be readily translated from bench to bedside. The emerging understanding of the structural properties and functions of collagen in cancer will guide the development of new strategies for anticancer therapy.
Collapse
Affiliation(s)
- Shuaishuai Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Huaxiang Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Wenquan Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Shuo Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Hao Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Tianjiao Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Wuhu Zhang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China.,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China.,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xianjun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China. .,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China. .,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China.
| | - Liang Liu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, 270 Dong An Road, Shanghai, 200032, People's Republic of China. .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, People's Republic of China. .,Shanghai Pancreatic Cancer Institute, Shanghai, 200032, People's Republic of China. .,Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, People's Republic of China.
| |
Collapse
|
42
|
Goldbloom-Helzner L, Hao D, Wang A. Developing Regenerative Treatments for Developmental Defects, Injuries, and Diseases Using Extracellular Matrix Collagen-Targeting Peptides. Int J Mol Sci 2019; 20:E4072. [PMID: 31438477 PMCID: PMC6747276 DOI: 10.3390/ijms20174072] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/19/2019] [Accepted: 08/20/2019] [Indexed: 12/11/2022] Open
Abstract
Collagen is the most widespread extracellular matrix (ECM) protein in the body and is important in maintaining the functionality of organs and tissues. Studies have explored interventions using collagen-targeting tissue engineered techniques, using collagen hybridizing or collagen binding peptides, to target or treat dysregulated or injured collagen in developmental defects, injuries, and diseases. Researchers have used collagen-targeting peptides to deliver growth factors, drugs, and genetic materials, to develop bioactive surfaces, and to detect the distribution and status of collagen. All of these approaches have been used for various regenerative medicine applications, including neovascularization, wound healing, and tissue regeneration. In this review, we describe in depth the collagen-targeting approaches for regenerative therapeutics and compare the benefits of using the different molecules for various present and future applications.
Collapse
Affiliation(s)
- Leora Goldbloom-Helzner
- Surgical Bioengineering Laboratory, Department of Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA
- Department of Biomedical Engineering, University of California Davis, Davis, CA 95616, USA
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA 95817, USA
| | - Dake Hao
- Surgical Bioengineering Laboratory, Department of Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA
- Department of Biomedical Engineering, University of California Davis, Davis, CA 95616, USA
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA 95817, USA
| | - Aijun Wang
- Surgical Bioengineering Laboratory, Department of Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA.
- Department of Biomedical Engineering, University of California Davis, Davis, CA 95616, USA.
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, CA 95817, USA.
| |
Collapse
|
43
|
Takita KK, Fujii KK, Ishii K, Koide T. Structural optimization of cyclic peptides that efficiently detect denatured collagen. Org Biomol Chem 2019; 17:7380-7387. [PMID: 31342036 DOI: 10.1039/c9ob01042d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To develop a facile method for detecting denatured collagen, we investigated the structure-activity relationship of cyclic collagen-mimetic peptides (cCMPs). Reported cCMP prototypes tend to self-assemble and they must be disassembled just before use. Introducing charge repulsion and a deformation in the peptide backbone structure enabled cCMPs to detect denatured collagen without a pre-treatment for disassembly. Using the optimized cCMP, types I-V collagen were detected by western blotting and denatured collagen fibrils were visualized in a cell culture system.
Collapse
Affiliation(s)
- Koh K Takita
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Japan
| | | | | | | |
Collapse
|
44
|
Steplewski A, Fertala J, Tomlinson R, Hoxha K, Han L, Thakar O, Klein J, Abboud J, Fertala A. The impact of cholesterol deposits on the fibrillar architecture of the Achilles tendon in a rabbit model of hypercholesterolemia. J Orthop Surg Res 2019; 14:172. [PMID: 31182124 PMCID: PMC6558834 DOI: 10.1186/s13018-019-1217-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 05/29/2019] [Indexed: 01/29/2023] Open
Abstract
Background Increased tendon pain and tendon damage is a significant complication related to hyperlipidemia. Unlike the well-established pathogenesis associated with increased serum concentrations of total cholesterol, triglycerides, and low-density lipoprotein in atherosclerotic cardiovascular disease, the role of hyperlipidemia in promoting tendon damage remains controversial and requires mechanistic clarity. Methods In this study, we analyzed the consequences of hypercholesterolemia on the integrity of the collagen-based architecture of the Achilles tendon. The Achilles tendons from rabbits fed with normal-cholesterol (nCH) and high-cholesterol (hCH) diets were analyzed. We studied the morphology of tendons, distribution of lipids within their collagen-rich milieu, the relative amounts of fibrillar collagen I and collagen III, and selected biomechanical parameters of the tendons at the macroscale and the nanoscale. Results Histological assays of hCH tendons and tenosynovium demonstrated hypercellular areas with increased numbers of macrophages infiltrating the tendon structure as compared to the nCH tendons. While Oil Red staining revealed lipid-rich deposits in the hCH tendons, hybridization of tendon tissue with the collagen hybridizing peptide (CHP) demonstrated damage to the collagen fibers. Fourier-transform infrared (FTIR) spectra showed the presence of distinct peaks consistent with the presence of cholesterol ester. Additionally, the hCH tendons displayed regions of poor collagen content that overlapped with lipid-rich regions. The hCH tendons had a substantial fourfold increase in the collage III to collagen I ratio as compared to the nCH tendons. Tendons from the hCH rabbits showed poor biomechanical characteristics in comparison with control. The biomechanical changes were evident at the macrolevel and the nanolevel of tendon structure. Conclusions Our findings support the hypothesis that hypercholesterolemia coincides with the weakening of the tendons. It is likely that the intimate contact between collagen fibrils and cholesterol deposits contributes to the weakening of the fibrillar structure of the tendons.
Collapse
Affiliation(s)
- Andrzej Steplewski
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA, 19107, USA
| | - Jolanta Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA, 19107, USA
| | - Ryan Tomlinson
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA, 19107, USA
| | - Kevth'er Hoxha
- School of Biomedical Engineering, Science & Health Systems, Drexel University, Philadelphia, PA, USA
| | - Lin Han
- School of Biomedical Engineering, Science & Health Systems, Drexel University, Philadelphia, PA, USA
| | - Ocean Thakar
- Rothman Institute of Orthopaedics, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jason Klein
- Rothman Institute of Orthopaedics, Thomas Jefferson University, Philadelphia, PA, USA
| | - Joseph Abboud
- Rothman Institute of Orthopaedics, Thomas Jefferson University, Philadelphia, PA, USA
| | - Andrzej Fertala
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Curtis Building, Room 501, 1015 Walnut Street, Philadelphia, PA, 19107, USA.
| |
Collapse
|
45
|
Xiao L, Majumdar R, Dai J, Li Y, Xie L, Shen FH, Jin L, Li X. Molecular Detection and Assessment of Intervertebral Disc Degeneration via a Collagen Hybridizing Peptide. ACS Biomater Sci Eng 2019; 5:1661-1667. [PMID: 31788555 DOI: 10.1021/acsbiomaterials.9b00070] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
During aging, wear, and tear of intervertebral discs, human discs undergo a series of morphological and biochemical changes. Degradation of extracellular matrix proteins, e.g., collagen, arises as an important contributor and accelerator in this process. Existing methods to detect collagen degradation at the tissue level include histology and immunohistochemistry. Unfortunately, most of these methods only depict overall collagen content without the ability to specifically discern degraded collagen and to assess the severity of degeneration. To fill this technological gap, we developed a robust and simple approach to detect and assess early disc degeneration with a collagen hybridizing peptide (CHP) that hybridizes with the flawed triple helix structure in degraded collagen. Intriguingly, the CHP signal in mouse lumbar discs exhibited a linear incremental pattern with age. This finding was corroborated with histological analysis based on established methods. When comparing this analysis, a positive linear correlation was found between CHP fluorescence intensity and the histological score with a regression value of r 2 = 0.9478. In degenerative mouse discs elicited by pro-inflammatory stimuli (IL-1β and LPS) ex vivo, the newly developed approach empowered prediction of the severity of disc degeneration. We further demonstrated higher CHP signals in a degenerative human disc tissue when compared to a normal sample. These findings also resonated with histological analysis. This approach lays a solid foundation for specific detection and assessment of intervertebral disc degeneration at the molecular level and will promote development of future disc regeneration strategies.
Collapse
Affiliation(s)
- Li Xiao
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States
| | - Rahul Majumdar
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States
| | - Jun Dai
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States.,Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Qiaokou District, Wuhan 430030, P.R. China
| | - Yang Li
- Department of Biomedical Engineering, University of Utah, 201 Presidents Circle, Salt Lake City, Utah 84112, United States
| | - Lin Xie
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States.,Department of Orthopaedics, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Jinan District, Shanghai 200040, P.R. China
| | - Francis H Shen
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States
| | - Li Jin
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States
| | - Xudong Li
- Department of Orthopaedic Surgery, University of Virginia, 135 Hospital Drive, Cobb Hall, Charlottesville, Virginia 22908, United States.,Department of Biomedical Engineering, University of Virginia, 415 Lane Road, Charlottesville, Virginia 22904, United States
| |
Collapse
|