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Zeng R, Zhang D, Zhang J, Pan Y, Liu X, Qi Q, Xu J, Xu C, Shi S, Wang J, Liu T, Dong L. Targeting lysyl oxidase like 2 attenuates OVA-induced airway remodeling partly via the AKT signaling pathway. Respir Res 2024; 25:230. [PMID: 38824593 PMCID: PMC11144323 DOI: 10.1186/s12931-024-02811-4] [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: 10/23/2023] [Accepted: 04/12/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Airway epithelium is an important component of airway structure and the initiator of airway remodeling in asthma. The changes of extracellular matrix (ECM), such as collagen deposition and structural disturbance, are typical pathological features of airway remodeling. Thus, identifying key mediators that derived from airway epithelium and capable of modulating ECM may provide valuable insights for targeted therapy of asthma. METHODS The datasets from Gene Expression Omnibus database were analyzed to screen differentially expressed genes in airway epithelium of asthma. We collected bronchoscopic biopsies and serum samples from asthmatic and healthy subjects to assess lysyl oxidase like 2 (LOXL2) expression. RNA sequencing and various experiments were performed to determine the influences of LOXL2 knockdown in ovalbumin (OVA)-induced mouse models. The roles and mechanisms of LOXL2 in bronchial epithelial cells were explored using LOXL2 small interfering RNA, overexpression plasmid and AKT inhibitor. RESULTS Both bioinformatics analysis and further experiments revealed that LOXL2 is highly expressed in airway epithelium of asthmatics. In vivo, LOXL2 knockdown significantly inhibited OVA-induced ECM deposition and epithelial-mesenchymal transition (EMT) in mice. In vitro, the transfection experiments on 16HBE cells demonstrated that LOXL2 overexpression increases the expression of N-cadherin and fibronectin and reduces the expression of E-cadherin. Conversely, after silencing LOXL2, the expression of E-cadherin is up-regulated. In addition, the remodeling and EMT process that induced by transforming growth factor-β1 could be enhanced and weakened after LOXL2 overexpression and silencing in 16HBE cells. Combining the RNA sequencing of mouse lung tissues and experiments in vitro, LOXL2 was involved in the regulation of AKT signaling pathway. Moreover, the treatment with AKT inhibitor in vitro partially alleviated the consequences associated with LOXL2 overexpression. CONCLUSIONS Taken together, the results demonstrated that epithelial LOXL2 plays a role in asthmatic airway remodeling partly via the AKT signaling pathway and highlighted the potential of LOXL2 as a therapeutic target for airway remodeling in asthma.
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Affiliation(s)
- Rong Zeng
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Dong Zhang
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Jintao Zhang
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Yun Pan
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Xiaofei Liu
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Qian Qi
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Jiawei Xu
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Changjuan Xu
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shuochuan Shi
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Junfei Wang
- Department of Respiratory and Critical Care Medicine, Qilu hospital of Shandong University, Jinan, China
| | - Tian Liu
- Department of Respiratory and Critical Care Medicine, Qilu hospital of Shandong University, Jinan, China
| | - Liang Dong
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China.
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China.
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2
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Simpson A, Krissanaprasit A, Chester D, Koehler C, LaBean TH, Brown AC. Utilizing multiscale engineered biomaterials to examine TGF-β-mediated myofibroblastic differentiation. Wound Repair Regen 2024; 32:234-245. [PMID: 38459905 PMCID: PMC11111354 DOI: 10.1111/wrr.13168] [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: 08/30/2023] [Revised: 01/05/2024] [Accepted: 02/06/2024] [Indexed: 03/11/2024]
Abstract
Cells integrate many mechanical and chemical cues to drive cell signalling responses. Because of the complex nature and interdependency of alterations in extracellular matrix (ECM) composition, ligand density, mechanics, and cellular responses it is difficult to tease out individual and combinatorial contributions of these various factors in driving cell behavior in homeostasis and disease. Tuning of material viscous and elastic properties, and ligand densities, in combinatorial fashions would enhance our understanding of how cells process complex signals. For example, it is known that increased ECM mechanics and transforming growth factor beta (TGF-β) receptor (TGF-β-R) spacing/clustering independently drive TGF-β signalling and associated myofibroblastic differentiation. However, it remains unknown how these inputs orthogonally contribute to cellular outcomes. Here, we describe the development of a novel material platform that combines microgel thin films with controllable viscoelastic properties and DNA origami to probe how viscoelastic properties and nanoscale spacing of TGF-β-Rs contribute to TGF-β signalling and myofibroblastic differentiation. We found that highly viscous materials with non-fixed TGF-β-R spacing promoted increased TGF-β signalling and myofibroblastic differentiation. This is likely due to the ability of cells to better cluster receptors on these surfaces. These results provide insight into the contribution of substrate properties and receptor localisation on downstream signalling. Future studies allow for exploration into other receptor-mediated processes.
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Affiliation(s)
- Aryssa Simpson
- Joint Department of Biomedical Engineering of University of North Carolina - Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Abhichart Krissanaprasit
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina, USA
| | - Daniel Chester
- Joint Department of Biomedical Engineering of University of North Carolina - Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Cynthia Koehler
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina, USA
| | - Thomas H LaBean
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Ashley C Brown
- Joint Department of Biomedical Engineering of University of North Carolina - Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
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3
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Sacco JL, Vaneman ZT, Gomez EW. Extracellular matrix viscoelasticity regulates TGFβ1-induced epithelial-mesenchymal transition and apoptosis via integrin linked kinase. J Cell Physiol 2024; 239:e31165. [PMID: 38149820 DOI: 10.1002/jcp.31165] [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: 06/21/2023] [Revised: 10/06/2023] [Accepted: 11/17/2023] [Indexed: 12/28/2023]
Abstract
Transforming growth factor (TGF)-β1 is a multifunctional cytokine that plays important roles in health and disease. Previous studies have revealed that TGFβ1 activation, signaling, and downstream cell responses including epithelial-mesenchymal transition (EMT) and apoptosis are regulated by the elasticity or stiffness of the extracellular matrix. However, tissues within the body are not purely elastic, rather they are viscoelastic. How matrix viscoelasticity impacts cell fate decisions downstream of TGFβ1 remains unknown. Here, we synthesized polyacrylamide hydrogels that mimic the viscoelastic properties of breast tumor tissue. We found that increasing matrix viscous dissipation reduces TGFβ1-induced cell spreading, F-actin stress fiber formation, and EMT-associated gene expression changes, and promotes TGFβ1-induced apoptosis in mammary epithelial cells. Furthermore, TGFβ1-induced expression of integrin linked kinase (ILK) and colocalization of ILK with vinculin at cell adhesions is attenuated in mammary epithelial cells cultured on viscoelastic substrata in comparison to cells cultured on nearly elastic substrata. Overexpression of ILK promotes TGFβ1-induced EMT and reduces apoptosis in cells cultured on viscoelastic substrata, suggesting that ILK plays an important role in regulating cell fate downstream of TGFβ1 in response to matrix viscoelasticity.
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Affiliation(s)
- Jessica L Sacco
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Zachary T Vaneman
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Esther W Gomez
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
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4
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Phogat S, Thiam F, Al Yazeedi S, Abokor FA, Osei ET. 3D in vitro hydrogel models to study the human lung extracellular matrix and fibroblast function. Respir Res 2023; 24:242. [PMID: 37798767 PMCID: PMC10552248 DOI: 10.1186/s12931-023-02548-6] [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: 06/26/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023] Open
Abstract
The pulmonary extracellular matrix (ECM) is a macromolecular structure that provides mechanical support, stability and elastic recoil for different pulmonary cells including the lung fibroblasts. The ECM plays an important role in lung development, remodeling, repair, and the maintenance of tissue homeostasis. Biomechanical and biochemical signals produced by the ECM regulate the phenotype and function of various cells including fibroblasts in the lungs. Fibroblasts are important lung structural cells responsible for the production and repair of different ECM proteins (e.g., collagen and fibronectin). During lung injury and in chronic lung diseases such as asthma, idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD), an abnormal feedback between fibroblasts and the altered ECM disrupts tissue homeostasis and leads to a vicious cycle of fibrotic changes resulting in tissue remodeling. In line with this, using 3D hydrogel culture models with embedded lung fibroblasts have enabled the assessment of the various mechanisms involved in driving defective (fibrotic) fibroblast function in the lung's 3D ECM environment. In this review, we provide a summary of various studies that used these 3D hydrogel models to assess the regulation of the ECM on lung fibroblast phenotype and function in altered lung ECM homeostasis in health and in chronic respiratory disease.
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Affiliation(s)
- Sakshi Phogat
- Department of Biology, Okanagan Campus, University of British Columbia, 3187 University Way, ASC366, Kelowna, BC, V1V1V7, Canada
| | - Fama Thiam
- Department of Biology, Okanagan Campus, University of British Columbia, 3187 University Way, ASC366, Kelowna, BC, V1V1V7, Canada
| | - Safiya Al Yazeedi
- Department of Biology, Okanagan Campus, University of British Columbia, 3187 University Way, ASC366, Kelowna, BC, V1V1V7, Canada
| | - Filsan Ahmed Abokor
- Department of Biology, Okanagan Campus, University of British Columbia, 3187 University Way, ASC366, Kelowna, BC, V1V1V7, Canada
| | - Emmanuel Twumasi Osei
- Department of Biology, Okanagan Campus, University of British Columbia, 3187 University Way, ASC366, Kelowna, BC, V1V1V7, Canada.
- Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada.
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5
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Jun M, Lee YL, Zhou T, Maric M, Burke B, Park S, Low BC, Chiam KH. Subcellular Force Imbalance in Actin Bundles Induces Nuclear Repositioning and Durotaxis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43387-43402. [PMID: 37674326 DOI: 10.1021/acsami.3c07546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Durotaxis is a phenomenon in which cells migrate toward substrates of increasing stiffness. However, how cells assimilate substrate stiffness as a directional cue remains poorly understood. In this study, we experimentally show that mouse embryonic fibroblasts can discriminate between different substrate stiffnesses and develop higher traction forces at regions of the cell adhering to the stiffer pillars. In this way, the cells generate a force imbalance between adhesion sites. It is this traction force imbalance that drives durotaxis by providing directionality for cell migration. Significantly, we found that traction forces are transmitted via LINC complexes to the cell nucleus, which serves to maintain the global force imbalance. In this way, LINC complexes play an essential role in anterograde nuclear movement and durotaxis. This conclusion is supported by the fact that LINC complex-deficient cells are incapable of durotaxis and instead migrate randomly on substrates featuring a stiffness gradient.
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Affiliation(s)
- Myeongjun Jun
- Bioinformatics institute, A*STAR, Singapore 138671, Singapore
- Department of Biological Science, National University of Singapore, Singapore 117558, Singapore
- School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
| | - Yin Loon Lee
- A*STAR Skin Research Laboratories, A*STAR, Singapore 138648, Singapore
| | - Tianxun Zhou
- Bioinformatics institute, A*STAR, Singapore 138671, Singapore
| | - Martina Maric
- A*STAR Skin Research Laboratories, A*STAR, Singapore 138648, Singapore
| | - Brian Burke
- A*STAR Skin Research Laboratories, A*STAR, Singapore 138648, Singapore
| | - Sungsu Park
- School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Korea
| | - Boon Chuan Low
- Department of Biological Science, National University of Singapore, Singapore 117558, Singapore
- Mechanobiology Institute, National University of Singapore, Singapore 117558, Singapore
- NUS college, National University of Singapore, Singapore 117558, Singapore
| | - Keng-Hwee Chiam
- Bioinformatics institute, A*STAR, Singapore 138671, Singapore
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6
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李 明, 孙 美, 贾 渊, 任 徽, 刘 含. [Biomechanical properties of epithelial mesenchymal transition in idiopathic pulmonary fibrosis]. SHENG WU YI XUE GONG CHENG XUE ZA ZHI = JOURNAL OF BIOMEDICAL ENGINEERING = SHENGWU YIXUE GONGCHENGXUE ZAZHI 2023; 40:632-637. [PMID: 37666752 PMCID: PMC10477379 DOI: 10.7507/1001-5515.202206016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 02/02/2023] [Indexed: 09/06/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive scar-forming disease with a high mortality rate that has received widespread attention. Epithelial mesenchymal transition (EMT) is an important part of the pulmonary fibrosis process, and changes in the biomechanical properties of lung tissue have an important impact on it. In this paper, we summarize the changes in the biomechanical microenvironment of lung tissue in IPF-EMT in recent years, and provide a systematic review on the effects of alterations in the mechanical microenvironment in pulmonary fibrosis on the process of EMT, the effects of mechanical factors on the behavior of alveolar epithelial cells in EMT and the biomechanical signaling in EMT, in order to provide new references for the research on the prevention and treatment of IPF.
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Affiliation(s)
- 明艳 李
- 河南中医药大学 中医药科学院 呼吸疾病中医药防治省部共建协同创新中心 河南省中医药防治呼吸病重点实验室(郑州 450016)Henan University of Chinese Medicine, Academy of Chinese Medicine Sciences, Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan & Ministry of Education of PR China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Zhengzhou 450016, P.R. China
| | - 美好 孙
- 河南中医药大学 中医药科学院 呼吸疾病中医药防治省部共建协同创新中心 河南省中医药防治呼吸病重点实验室(郑州 450016)Henan University of Chinese Medicine, Academy of Chinese Medicine Sciences, Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan & Ministry of Education of PR China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Zhengzhou 450016, P.R. China
| | - 渊博 贾
- 河南中医药大学 中医药科学院 呼吸疾病中医药防治省部共建协同创新中心 河南省中医药防治呼吸病重点实验室(郑州 450016)Henan University of Chinese Medicine, Academy of Chinese Medicine Sciences, Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan & Ministry of Education of PR China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Zhengzhou 450016, P.R. China
| | - 徽 任
- 河南中医药大学 中医药科学院 呼吸疾病中医药防治省部共建协同创新中心 河南省中医药防治呼吸病重点实验室(郑州 450016)Henan University of Chinese Medicine, Academy of Chinese Medicine Sciences, Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan & Ministry of Education of PR China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Zhengzhou 450016, P.R. China
- 西安交通大学 仿生工程与生物力学中心(西安 710049)Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Xi'an 710049, P.R. China
| | - 含 刘
- 河南中医药大学 中医药科学院 呼吸疾病中医药防治省部共建协同创新中心 河南省中医药防治呼吸病重点实验室(郑州 450016)Henan University of Chinese Medicine, Academy of Chinese Medicine Sciences, Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases Co-Constructed by Henan & Ministry of Education of PR China, Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Zhengzhou 450016, P.R. China
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7
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Zhao J, Yang S, Xu Y, Qin S, Bie F, Chen L, Zhou F, Xie J, Liu X, Shu B, Qi S. Mechanical pressure-induced dedifferentiation of myofibroblasts inhibits scarring via SMYD3/ITGBL1 signaling. Dev Cell 2023:S1534-5807(23)00190-9. [PMID: 37192621 DOI: 10.1016/j.devcel.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/21/2022] [Accepted: 04/24/2023] [Indexed: 05/18/2023]
Abstract
Pressure therapy (PT) is an effective intervention for reducing scarring, but its underlying mechanism remains largely unclear. Here, we demonstrate that human scar-derived myofibroblasts dedifferentiate into normal fibroblasts in response to PT, and we identify how SMYD3/ITGBL1 contributes to the nuclear relay of mechanical signals. In clinical specimens, reductions in SMYD3 and ITGBL1 expression levels are strongly associated with the anti-scarring effects of PT. The integrin β1/ILK pathway is inhibited in scar-derived myofibroblasts upon PT, leading to decreased TCF-4 and subsequently to reductions in SMYD3 expression, which reduces the levels of H3K4 trimethylation (H3K4me3) and further suppresses ITGBL1 expression, resulting the dedifferentiation of myofibroblasts into fibroblasts. In animal models, blocking SMYD3 expression results in reductions of scarring, mimicking the positive effects of PT. Our results show that SMYD3 and ITGBL1 act as sensors and mediators of mechanical pressure to inhibit the progression of fibrogenesis and provide therapeutic targets for fibrotic diseases.
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Affiliation(s)
- Jingling Zhao
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Shuai Yang
- Department of Neurosurgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, Guangdong, China
| | - Yingbin Xu
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Shitian Qin
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Fan Bie
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Lei Chen
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Fei Zhou
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Julin Xie
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Xusheng Liu
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Bin Shu
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China.
| | - Shaohai Qi
- Department of Burns, Wound Repair and Reconstruction, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, China.
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8
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Lin WJ, Pathak A. Transitions in density, pressure, and effective temperature drive collective cell migration into confining environments. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.10.536258. [PMID: 37090663 PMCID: PMC10120636 DOI: 10.1101/2023.04.10.536258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Epithelial cell collectives migrate through tissue interfaces and crevices to orchestrate processes of development, tumor invasion, and wound healing. Naturally, traversal of cell collective through confining environments involves crowding due to the narrowing space, which seems tenuous given the conventional inverse relationship between cell density and migration. However, physical transitions required to overcome such epithelial densification for migration across confinements remain unclear. Here, in contiguous microchannels, we show that epithelial (MCF10A) monolayers accumulate higher cell density before entering narrower channels; however, overexpression of breast cancer oncogene +ErbB2 reduced this need for density accumulation across confinement. While wildtype MCF10A cells migrated faster in narrow channels, this confinement sensitivity reduced after +ErbB2 mutation or with constitutively-active RhoA. The migrating collective developed pressure differentials upon encountering microchannels, like fluid flow into narrowing spaces, and this pressure dropped with their continued migration. These transitions of pressure and density altered cell shapes and increased effective temperature, estimated by treating cells as granular thermodynamic system. While +RhoA cells and those in confined regions were effectively warmer, cancer-like +ErbB2 cells remained cooler. Epithelial reinforcement by metformin treatment increased density and temperature differentials across confinement, indicating that higher cell cohesion could reduce unjamming. Our results provide experimental evidence for previously proposed theories of inverse relationship between density and motility-related effective temperature. Indeed, we show across cell lines that confinement increases pressure and effective temperature, which enable migration by reducing density. This physical interpretation of collective cell migration as granular matter could advance our understanding of complex living systems.
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9
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Wang D, Sant S, Lawless C, Ferrell N. A kidney proximal tubule model to evaluate effects of basement membrane stiffening on renal tubular epithelial cells. Integr Biol (Camb) 2022; 14:171-183. [PMID: 36573280 DOI: 10.1093/intbio/zyac016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 09/21/2022] [Accepted: 11/06/2022] [Indexed: 12/28/2022]
Abstract
The kidney tubule consists of a single layer of epithelial cells supported by the tubular basement membrane (TBM), a thin layer of specialized extracellular matrix (ECM). The mechanical properties of the ECM are important for regulating a wide range of cell functions including proliferation, differentiation and cell survival. Increased ECM stiffness plays a role in promoting multiple pathological conditions including cancer, fibrosis and heart disease. How changes in TBM mechanics regulate tubular epithelial cell behavior is not fully understood. Here we introduce a cell culture system that utilizes in vivo-derived TBM to investigate cell-matrix interactions in kidney proximal tubule cells. Basement membrane mechanics was controlled using genipin, a biocompatibility crosslinker. Genipin modification resulted in a dose-dependent increase in matrix stiffness. Crosslinking had a marginal but statistically significant impact on the diffusive molecular transport properties of the TBM, likely due to a reduction in pore size. Both native and genipin-modified TBM substrates supported tubular epithelial cell growth. Cells were able to attach and proliferate to form confluent monolayers. Tubular epithelial cells polarized and assembled organized cell-cell junctions. Genipin modification had minimal impact on cell viability and proliferation. Genipin stiffened TBM increased gene expression of pro-fibrotic cytokines and altered gene expression for N-cadherin, a proximal tubular epithelial specific cell-cell junction marker. This work introduces a new cell culture model for cell-basement membrane mechanobiology studies that utilizes in vivo-derived basement membrane. We also demonstrate that TBM stiffening affects tubular epithelial cell function through altered gene expression of cell-specific differentiation markers and induced increased expression of pro-fibrotic growth factors.
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Affiliation(s)
- Dan Wang
- Department of Internal Medicine, Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Snehal Sant
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Craig Lawless
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Nicholas Ferrell
- Department of Internal Medicine, Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
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10
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Chen C, Ibrahim Z, Marchand MF, Piolot T, Kamboj S, Carreiras F, Yamada A, Schanne-Klein MC, Chen Y, Lambert A, Aimé C. Three-Dimensional Collagen Topology Shapes Cell Morphology, beyond Stiffness. ACS Biomater Sci Eng 2022; 8:5284-5294. [PMID: 36342082 DOI: 10.1021/acsbiomaterials.2c00879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Cellular heterogeneity is associated with many physiological processes, including pathological ones, such as morphogenesis and tumorigenesis. The extracellular matrix (ECM) is a key player in the generation of cellular heterogeneity. Advances in our understanding rely on our ability to provide relevant in vitro models. This requires obtainment of the characteristics of the tissues that are essential for controlling cell fate. To do this, we must consider the diversity of tissues, the diversity of physiological contexts, and the constant remodeling of the ECM along these processes. To this aim, we have fabricated a library of ECM models for reproducing the scaffold of connective tissues and the basement membrane by using different biofabrication routes based on the electrospinning and drop casting of biopolymers from the ECM. Using a combination of electron microscopy, multiphoton imaging, and AFM nanoindentation, we show that we can vary independently protein composition, topology, and stiffness of ECM models. This in turns allows one to generate the in vivo complexity of the phenotypic landscape of ovarian cancer cells. We show that, while this phenotypic shift cannot be directly correlated with a unique ECM feature, the three-dimensional collagen fibril topology patterns cell shape, beyond protein composition and stiffness of the ECM. On this line, this work is a further step toward the development of ECM models recapitulating the constantly remodeled environment that cells face and thus provides new insights for cancer model engineering and drug testing.
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Affiliation(s)
- Changchong Chen
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 rue Lhomond, Paris 75005, France
| | - Zeinab Ibrahim
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 rue Lhomond, Paris 75005, France
| | - Marion F Marchand
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, PSL Research University, 11 Place Marcelin Berthelot, Paris 75231, France
| | - Tristan Piolot
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, PSL Research University, 11 Place Marcelin Berthelot, Paris 75231, France
| | - Sahil Kamboj
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe, (EA1391), Groupe Matrice Extracellulaire et Physiopathologie (MECuP), Institut des Matériaux, I-MAT (FD4122), CY Cergy Paris Université, Maison Internationale de la Recherche, Rue Descartes, Neuville sur Oise Cedex 95031, France
| | - Franck Carreiras
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe, (EA1391), Groupe Matrice Extracellulaire et Physiopathologie (MECuP), Institut des Matériaux, I-MAT (FD4122), CY Cergy Paris Université, Maison Internationale de la Recherche, Rue Descartes, Neuville sur Oise Cedex 95031, France
| | - Ayako Yamada
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 rue Lhomond, Paris 75005, France
| | - Marie-Claire Schanne-Klein
- Laboratoire d'Optique et Biosciences (LOB), École Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, Route de Saclay, Palaiseau Cedex 91128, France
| | - Yong Chen
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 rue Lhomond, Paris 75005, France
| | - Ambroise Lambert
- Equipe de Recherche sur les Relations Matrice Extracellulaire-Cellules, ERRMECe, (EA1391), Groupe Matrice Extracellulaire et Physiopathologie (MECuP), Institut des Matériaux, I-MAT (FD4122), CY Cergy Paris Université, Maison Internationale de la Recherche, Rue Descartes, Neuville sur Oise Cedex 95031, France
| | - Carole Aimé
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, 24 rue Lhomond, Paris 75005, France
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11
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Caracena T, Blomberg R, Hewawasam RS, Fry ZE, Riches DWH, Magin CM. Alveolar epithelial cells and microenvironmental stiffness synergistically drive fibroblast activation in three-dimensional hydrogel lung models. Biomater Sci 2022; 10:7133-7148. [PMID: 36366982 PMCID: PMC9729409 DOI: 10.1039/d2bm00827k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a devastating lung disease that progressively and irreversibly alters the lung parenchyma, eventually leading to respiratory failure. The study of this disease has been historically challenging due to the myriad of complex processes that contribute to fibrogenesis and the inherent difficulty in accurately recreating the human pulmonary environment in vitro. Here, we describe a poly(ethylene glycol) PEG hydrogel-based three-dimensional model for the co-culture of primary murine pulmonary fibroblasts and alveolar epithelial cells that reproduces the micro-architecture, cell placement, and mechanical properties of healthy and fibrotic lung tissue. Co-cultured cells retained normal levels of viability up to at least three weeks and displayed differentiation patterns observed in vivo during IPF progression. Interrogation of protein and gene expression within this model showed that myofibroblast activation required both extracellular mechanical cues and the presence of alveolar epithelial cells. Differences in gene expression indicated that cellular co-culture induced TGF-β signaling and proliferative gene expression, while microenvironmental stiffness upregulated the expression of genes related to cell-ECM interactions. This biomaterial-based cell culture system serves as a significant step forward in the accurate recapitulation of human lung tissue in vitro and highlights the need to incorporate multiple factors that work together synergistically in vivo into models of lung biology of health and disease.
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Affiliation(s)
- Thomas Caracena
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, USA.
| | - Rachel Blomberg
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, USA.
| | - Rukshika S Hewawasam
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, USA.
| | - Zoe E Fry
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, USA.
| | - David W H Riches
- Program in Cell Biology, Department of Pediatrics, National Jewish Health, USA
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Anschutz Medical Campus, USA
- Department of Research, Veterans Affairs Eastern Colorado Health Care System, USA
- Department of Immunology and Microbiology, University of Colorado, Anschutz Medical Campus, USA
| | - Chelsea M Magin
- Department of Bioengineering, University of Colorado, Denver | Anschutz Medical Campus, USA.
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Anschutz Medical Campus, USA
- Department of Pediatrics, University of Colorado, Anschutz Medical Campus, USA
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12
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Cell-Specific Response of NSIP- and IPF-Derived Fibroblasts to the Modification of the Elasticity, Biological Properties, and 3D Architecture of the Substrate. Int J Mol Sci 2022; 23:ijms232314714. [PMID: 36499041 PMCID: PMC9738992 DOI: 10.3390/ijms232314714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 11/26/2022] Open
Abstract
The fibrotic fibroblasts derived from idiopathic pulmonary fibrosis (IPF) and nonspecific interstitial pneumonia (NSIP) are surrounded by specific environments, characterized by increased stiffness, aberrant extracellular matrix (ECM) composition, and altered lung architecture. The presented research was aimed at investigating the effect of biological, physical, and topographical modification of the substrate on the properties of IPF- and NSIP-derived fibroblasts, and searching for the parameters enabling their identification. Soft and stiff polydimethylsiloxane (PDMS) was chosen for the basic substrates, the properties of which were subsequently tuned. To obtain the biological modification of the substrates, they were covered with ECM proteins, laminin, fibronectin, and collagen. The substrates that mimicked the 3D structure of the lungs were prepared using two approaches, resulting in porous structures that resemble natural lung architecture and honeycomb patterns, typical of IPF tissue. The growth of cells on soft and stiff PDMS covered with proteins, traced using fluorescence microscopy, confirmed an altered behavior of healthy and IPF- and NSIP-derived fibroblasts in response to the modified substrate properties, enabling their identification. In turn, differences in the mechanical properties of healthy and fibrotic fibroblasts, determined using atomic force microscopy working in force spectroscopy mode, as well as their growth on 3D-patterned substrates were not sufficient to discriminate between cell lines.
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13
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Yue T, Xiong S, Zheng D, Wang Y, Long P, Yang J, Danzeng D, Gao H, Wen X, Li X, Hou J. Multifunctional biomaterial platforms for blocking the fibrosis process and promoting cellular restoring effects in myocardial fibrosis therapy. Front Bioeng Biotechnol 2022; 10:988683. [PMID: 36185428 PMCID: PMC9520723 DOI: 10.3389/fbioe.2022.988683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/05/2022] [Indexed: 11/23/2022] Open
Abstract
Myocardial fibrosis is the result of abnormal healing after acute and chronic myocardial damage and is a direct cause of heart failure and cardiac insufficiency. The clinical approach is to preserve cardiac function and inhibit fibrosis through surgery aimed at dredging blood vessels. However, this strategy does not adequately address the deterioration of fibrosis and cardiac function recovery. Therefore, numerous biomaterial platforms have been developed to address the above issues. In this review, we summarize the existing biomaterial delivery and restoring platforms, In addition, we also clarify the therapeutic strategies based on biomaterial platforms, including general strategies to block the fibrosis process and new strategies to promote cellular restoring effects. The development of structures with the ability to block further fibrosis progression as well as to promote cardiomyocytes viability should be the main research interests in myocardial fibrosis, and the reestablishment of structures necessary for normal cardiac function is central to the treatment of myocardial fibrosis. Finally, the future application of biomaterials for myocardial fibrosis is also highlighted.
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Affiliation(s)
- Tian Yue
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People’s Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu, China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Shiqiang Xiong
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People’s Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu, China
| | - Dezhi Zheng
- Department of Cardiovascular Surgery, The 960th Hospital of the PLA Joint Logistic Support Force, Jinan, China
| | - Yi Wang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Pan Long
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Jiali Yang
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People’s Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu, China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Dunzhu Danzeng
- Department of Basic Medicine, Medical College, Tibet University, Lhasa, China
| | - Han Gao
- Department of Basic Medicine, Medical College, Tibet University, Lhasa, China
| | - Xudong Wen
- Department of Gastroenterology and Hepatology, Chengdu First People’s Hospital, Chengdu, China
- *Correspondence: Xudong Wen, ; Xin Li, ; Jun Hou,
| | - Xin Li
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People’s Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu, China
- *Correspondence: Xudong Wen, ; Xin Li, ; Jun Hou,
| | - Jun Hou
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People’s Hospital of Chengdu, Cardiovascular Disease Research Institute of Chengdu, Chengdu, China
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
- *Correspondence: Xudong Wen, ; Xin Li, ; Jun Hou,
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14
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Dooling LJ, Saini K, Anlaş AA, Discher DE. Tissue mechanics coevolves with fibrillar matrisomes in healthy and fibrotic tissues. Matrix Biol 2022; 111:153-188. [PMID: 35764212 PMCID: PMC9990088 DOI: 10.1016/j.matbio.2022.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/16/2022] [Accepted: 06/23/2022] [Indexed: 12/12/2022]
Abstract
Fibrillar proteins are principal components of extracellular matrix (ECM) that confer mechanical properties to tissues. Fibrosis can result from wound repair in nearly every tissue in adults, and it associates with increased ECM density and crosslinking as well as increased tissue stiffness. Such fibrotic tissues are a major biomedical challenge, and an emerging view posits that the altered mechanical environment supports both synthetic and contractile myofibroblasts in a state of persistent activation. Here, we review the matrisome in several fibrotic diseases, as well as normal tissues, with a focus on physicochemical properties. Stiffness generally increases with the abundance of fibrillar collagens, the major constituent of ECM, with similar mathematical trends for fibrosis as well as adult tissues from soft brain to stiff bone and heart development. Changes in expression of other core matrisome and matrisome-associated proteins or proteoglycans contribute to tissue stiffening in fibrosis by organizing collagen, crosslinking ECM, and facilitating adhesion of myofibroblasts. Understanding how ECM composition and mechanics coevolve during fibrosis can lead to better models and help with antifibrotic therapies.
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Affiliation(s)
- Lawrence J Dooling
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Karanvir Saini
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Alişya A Anlaş
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Dennis E Discher
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA.
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15
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Parameshwar PK, Sagrillo-Fagundes L, Azevedo Portilho N, Pastor WA, Vaillancourt C, Moraes C. Engineered models for placental toxicology: Emerging approaches based on tissue decellularization. Reprod Toxicol 2022; 112:148-159. [PMID: 35840119 DOI: 10.1016/j.reprotox.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 06/30/2022] [Accepted: 07/11/2022] [Indexed: 11/28/2022]
Abstract
Recent increases in prescriptions and illegal drug use as well as exposure to environmental contaminants during pregnancy have highlighted the critical importance of placental toxicology in understanding and identifying risks to both mother and fetus. Although advantageous for basic science, current in vitro models often fail to capture the complexity of placental response, likely due to their inability to recreate and monitor aspects of the microenvironment including physical properties, mechanical forces and stiffness, protein composition, cell-cell interactions, soluble and physicochemical factors, and other exogenous cues. Tissue engineering holds great promise in addressing these challenges and provides an avenue to better understand basic biology, effects of toxic compounds and potential therapeutics. The key to success lies in effectively recreating the microenvironment. One strategy to do this would be to recreate individual components and then combine them. However, this becomes challenging due to variables present according to conditions such as tissue location, age, health status and lifestyle. The extracellular matrix (ECM) is known to influence cellular fate by working as a storage of factors. Decellularized ECM (dECM) is a recent tool that allows usage of the original ECM in a refurbished form, providing a relatively reliable representation of the microenvironment. This review focuses on using dECM in modified forms such as whole organs, scaffold sheets, electrospun nanofibers, hydrogels, 3D printing, and combinations as building blocks to recreate aspects of the microenvironment to address general tissue engineering and toxicology challenges, thus illustrating their potential as tools for future placental toxicology studies.
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Affiliation(s)
| | | | - Nathalia Azevedo Portilho
- Department of Chemical Engineering, McGill University, Montréal, Québec, Canada; Department of Biochemistry, McGill University, Montréal, Québec, Canada
| | - William A Pastor
- Department of Biochemistry, McGill University, Montréal, Québec, Canada; Rosalind & Morris Goodman Cancer Institute, McGill University, Montréal, Québec, Canada
| | - Cathy Vaillancourt
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, Québec, Canada; Department of Obstetrics and Gynecology, Université de Montréal, Montréal, Québec, Canada
| | - Christopher Moraes
- Department of Biological and Biomedical Engineering, McGill University, Montréal, Québec, Canada; Department of Chemical Engineering, McGill University, Montréal, Québec, Canada; Rosalind & Morris Goodman Cancer Institute, McGill University, Montréal, Québec, Canada; Division of Experimental Medicine, McGill University, Montréal, Québec, Canada.
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16
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Research Advances of Injectable Functional Hydrogel Materials in the Treatment of Myocardial Infarction. Gels 2022; 8:gels8070423. [PMID: 35877508 PMCID: PMC9316750 DOI: 10.3390/gels8070423] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/30/2022] [Accepted: 07/03/2022] [Indexed: 12/10/2022] Open
Abstract
Myocardial infarction (MI) has become one of the serious diseases threatening human life and health. However, traditional treatment methods for MI have some limitations, such as irreversible myocardial necrosis and cardiac dysfunction. Fortunately, recent endeavors have shown that hydrogel materials can effectively prevent negative remodeling of the heart and improve the heart function and long-term prognosis of patients with MI due to their good biocompatibility, mechanical properties, and electrical conductivity. Therefore, this review aims to summarize the research progress of injectable hydrogel in the treatment of MI in recent years and to introduce the rational design of injectable hydrogels in myocardial repair. Finally, the potential challenges and perspectives of injectable hydrogel in this field will be discussed, in order to provide theoretical guidance for the development of new and effective treatment strategies for MI.
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17
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Guo T, He C, Venado A, Zhou Y. Extracellular Matrix Stiffness in Lung Health and Disease. Compr Physiol 2022; 12:3523-3558. [PMID: 35766837 PMCID: PMC10088466 DOI: 10.1002/cphy.c210032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The extracellular matrix (ECM) provides structural support and imparts a wide variety of environmental cues to cells. In the past decade, a growing body of work revealed that the mechanical properties of the ECM, commonly known as matrix stiffness, regulate the fundamental cellular processes of the lung. There is growing appreciation that mechanical interplays between cells and associated ECM are essential to maintain lung homeostasis. Dysregulation of ECM-derived mechanical signaling via altered mechanosensing and mechanotransduction pathways is associated with many common lung diseases. Matrix stiffening is a hallmark of lung fibrosis. The stiffened ECM is not merely a sequelae of lung fibrosis but can actively drive the progression of fibrotic lung disease. In this article, we provide a comprehensive view on the role of matrix stiffness in lung health and disease. We begin by summarizing the effects of matrix stiffness on the function and behavior of various lung cell types and on regulation of biomolecule activity and key physiological processes, including host immune response and cellular metabolism. We discuss the potential mechanisms by which cells probe matrix stiffness and convert mechanical signals to regulate gene expression. We highlight the factors that govern matrix stiffness and outline the role of matrix stiffness in lung development and the pathogenesis of pulmonary fibrosis, pulmonary hypertension, asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. We envision targeting of deleterious matrix mechanical cues for treatment of fibrotic lung disease. Advances in technologies for matrix stiffness measurements and design of stiffness-tunable matrix substrates are also explored. © 2022 American Physiological Society. Compr Physiol 12:3523-3558, 2022.
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Affiliation(s)
- Ting Guo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Alabama, USA.,Department of Respiratory Medicine, the Second Xiangya Hospital, Central-South University, Changsha, Hunan, China
| | - Chao He
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Alabama, USA
| | - Aida Venado
- Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Yong Zhou
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Alabama, USA
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18
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Feng Z, Ma T, Tian B, Jin X, Yuan Z. Effects of Titanium Implant Combined with Nano-Indentation in the Vertical Control of Physiological Anchorage Spee’s Wire System Corrective Technology. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In the current research, there was, in the vertical control of physiological anchorage spee’s wire system (PASS) technology, an investigation on the role of titanium implant technology in combination with nano-indentation experiment the present research. The human jaw was selected
as the sample to be cut vertically, by doing do, to obtain a test slice of about 2 mm through a cutting machine following the nano-indentation test. The slice was frozen and preserved in normal saline and taken out during the test. 40 outpatients who underwent orthodontic therapy were chosen
as the research objects and rolled in a random manner into a control category and an category of observation. Then, mechanical biological therapy (MBT) correction was conducted for the outpatients from the control category and PASS correction therapy based on the nano-indentation experiment
was for outpatients from the category of observation. Following therapy, the therapy conditions of these two categories were compared, showing that the load was a fixed value and the depth of the indentation was increasing. Under the action of external force, the periodontal ligament might
undergo elastic deformation, changing with duration. Dentition alignment duration, ligation duration, and deligation duration were less for participants in the observation group compared to those in the control category (P less than 0.05). The inclination between the longitudinal plane
of the top central incisor and the sella juncture root point plane (UI-SN angle), the spacing between both the top mandibular teeth margin and the nasal root juncture molar seat point (UI-NA distance), and the angle between the upper and lower central incisor tooth axis and the NA connection
(UI-NA angle) were all significantly less pronounced in the category of observation than in the control category (P less than 0.05). However, the angle of upper and lower central incisor long axis (UI-LI angle) from the category of observation was hugely greater than that of the control
category (P less than 0.05). The value of dental arch width in the category of observation was smaller significantly than the value of the control category (P less than 0.05), and the changes in dental arch width were larger than those in the control category (P less than
0.05). Besides, the measured values of X-ray projections of outpatients from the category of observation were higher at of the control category (P less than 0.05). In conclusion, nano-indentation experiment can accurately match the equipment required in the therapy. The application
of titanium materials combined with the vertical control of PASS correction technology can effectively alleviate the clinical symptoms of outpatients so as to improve the therapy effect.
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Affiliation(s)
- Zhe Feng
- Department of Oral Medicine, The Second Affiliated Hospital of Xingtai Medical College, Xingtai, 054000, China
| | - Tao Ma
- Department of Stomatology, Xingtai Medical College, Xingtai, 054000, China
| | - Bingxin Tian
- Department of Oral Medicine, The Second Affiliated Hospital of Xingtai Medical College, Xingtai, 054000, China
| | - Xinxin Jin
- Department of Oral Medicine, Second Hospital of Shijiazhuang City, Shijiazhuang, 050000, China
| | - Zilu Yuan
- Department of Stomatology, Xingtai Medical College, Xingtai, 054000, China
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19
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Tian H, Shi H, Yu J, Ge S, Ruan J. Biophysics Role and Biomimetic Culture Systems of ECM Stiffness in Cancer EMT. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100094. [PMID: 35712024 PMCID: PMC9189138 DOI: 10.1002/gch2.202100094] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 02/14/2022] [Indexed: 06/15/2023]
Abstract
Oncological diseases have become the second leading cause of death from noncommunicable diseases worldwide and a major threat to human health. With the continuous progress in cancer research, the mechanical cues from the tumor microenvironment environment (TME) have been found to play an irreplaceable role in the progression of many cancers. As the main extracellular mechanical signal carrier, extracellular matrix (ECM) stiffness may influence cancer progression through biomechanical transduction to modify downstream gene expression, promote epithelial-mesenchymal transition (EMT), and regulate the stemness of cancer cells. EMT is an important mechanism that induces cancer cell metastasis and is closely influenced by ECM stiffness, either independently or in conjunction with other molecules. In this review, the unique role of ECM stiffness in EMT in different kinds of cancers is first summarized. By continually examining the significance of ECM stiffness in cancer progression, a biomimetic culture system based on 3D manufacturing and novel material technologies is developed to mimic ECM stiffness. The authors then look back on the novel development of the ECM stiffness biomimetic culture systems and finally provide new insights into ECM stiffness in cancer progression which can broaden the fields' horizons with a view toward developing new cancer diagnosis methods and therapies.
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Affiliation(s)
- Hao Tian
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Hanhan Shi
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Jie Yu
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Shengfang Ge
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
| | - Jing Ruan
- Department of OphthalmologyShanghai Key Laboratory of Orbital Diseases and Ocular OncologyNinth People's HospitalShanghai JiaoTong University School of MedicineShanghaiP. R. China
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20
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Nelson CM. Mechanical Control of Cell Differentiation: Insights from the Early Embryo. Annu Rev Biomed Eng 2022; 24:307-322. [PMID: 35385680 DOI: 10.1146/annurev-bioeng-060418-052527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Differentiation is the process by which a cell activates the expression of tissue-specific genes, downregulates the expression of potency markers, and acquires the phenotypic characteristics of its mature fate. The signals that regulate differentiation include biochemical and mechanical factors within the surrounding microenvironment. We describe recent breakthroughs in our understanding of the mechanical control mechanisms that regulate differentiation, with a specific emphasis on the differentiation events that build the early mouse embryo. Engineering approaches to reproducibly mimic the mechanical regulation of differentiation will permit new insights into early development and applications in regenerative medicine. Expected final online publication date for the Annual Review of Biomedical Engineering, Volume 24 is June 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Celeste M Nelson
- Departments of Chemical & Biological Engineering and Molecular Biology, Princeton University, Princeton, New Jersey USA;
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21
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Chi Y, Chen Y, Jiang W, Huang W, Ouyang M, Liu L, Pan Y, Li J, Qu X, Liu H, Liu C, Deng L, Qin X, Xiang Y. Deficiency of Integrin β4 Results in Increased Lung Tissue Stiffness and Responds to Substrate Stiffness via Modulating RhoA Activity. Front Cell Dev Biol 2022; 10:845440. [PMID: 35309934 PMCID: PMC8926985 DOI: 10.3389/fcell.2022.845440] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/11/2022] [Indexed: 12/12/2022] Open
Abstract
The interaction between extracellular matrix (ECM) and epithelial cells plays a key role in lung development. Our studies found that mice with conditional integrin β4 (ITGB4) knockout presented lung dysplasia and increased stiffness of lung tissues. In accordance with our previous studies regarding the functions of ITGB4 in bronchial epithelial cells (BECs), we hypothesize that the decreased ITGB4 expression during embryonic stage leads to abnormal ECM remodeling and increased tissue stiffness, thus impairing BECs motility and compromising lung development. In this study, we examined lung tissue stiffness in normal and ITGB4 deficiency mice using Atomic Force Microscopy (AFM), and demonstrated that ITGB4 deficiency resulted in increased lung tissue stiffness. The examination of ECM components collagen, elastin, and lysyl oxidase (LOX) family showed that the expression of type VI collagen, elastin and LOXL4 were significantly elevated in the ITGB4-deficiency mice, compared with those in normal groups. Airway epithelial cell migration and proliferation capacities on normal and stiff substrates were evaluated through video-microscopy and flow cytometry. The morphology of the cytoskeleton was detected by laser confocal microscopy, and RhoA activities were determined by fluorescence resonance energy transfer (FRET) microscopy. The results showed that migration and proliferation of ITGB4 deficiency cells were noticeably inhibited, along decreased cytoskeleton stabilization, and hampered RhoA activity, especially for cells cultured on the stiff substrate. These results suggest that decreased ITGB4 expression results in increased lung tissue stiffness and impairs the adaptation of bronchial epithelial cells to substrate stiffness, which may be related to the occurrence of broncho pulmonary dysplasia.
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Affiliation(s)
- Yinxiu Chi
- School of Basic Medicine, Central South University, Changsha, China
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
- Longdong College, Qingyang, China
| | - Yu Chen
- School of Basic Medicine, Central South University, Changsha, China
| | - Wang Jiang
- School of Basic Medicine, Central South University, Changsha, China
| | - Wenjie Huang
- School of Basic Medicine, Central South University, Changsha, China
- Affiliated Liuzhou Maternity and Child Healthcare Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Mingxing Ouyang
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Lei Liu
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Yan Pan
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Jingjing Li
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Xiangping Qu
- School of Basic Medicine, Central South University, Changsha, China
| | - Huijun Liu
- School of Basic Medicine, Central South University, Changsha, China
| | - Chi Liu
- School of Basic Medicine, Central South University, Changsha, China
| | - Linhong Deng
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
| | - Xiaoqun Qin
- School of Basic Medicine, Central South University, Changsha, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
| | - Yang Xiang
- School of Basic Medicine, Central South University, Changsha, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
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22
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Orzechowska B, Awsiuk K, Wnuk D, Pabijan J, Stachura T, Soja J, Sładek K, Raczkowska J. Discrimination between NSIP- and IPF-Derived Fibroblasts Based on Multi-Parameter Characterization of Their Growth, Morphology and Physic-Chemical Properties. Int J Mol Sci 2022; 23:ijms23042162. [PMID: 35216278 PMCID: PMC8880018 DOI: 10.3390/ijms23042162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 02/04/2023] Open
Abstract
Background: The aim of the research presented here was to find a set of parameters enabling discrimination between three types of fibroblasts, i.e., healthy ones and those derived from two disorders mimicking each other: idiopathic pulmonary fibrosis (IPF), and nonspecific interstitial pneumonia (NSIP). Methods: The morphology and growth of cells were traced using fluorescence microscopy and analyzed quantitatively using cell proliferation and substrate cytotoxicity indices. The viability of cells was recorded using MTS assays, and their stiffness was examined using atomic force microscopy (AFM) working in force spectroscopy (FS) mode. To enhance any possible difference in the examined parameters, experiments were performed with cells cultured on substrates of different elasticities. Moreover, the chemical composition of cells was determined using time-of-flight secondary ion mass spectrometry (ToF-SIMS), combined with sophisticated analytical tools, i.e., Multivariate Curve Resolution (MCR) and Principal Component Analysis (PCA). Results: The obtained results demonstrate that discrimination between cell lines derived from healthy and diseased patients is possible based on the analysis of the growth of cells, as well as their physical and chemical properties. In turn, the comparative analysis of the cellular response to altered stiffness of the substrates enables the identification of each cell line, including distinguishing between IPF- and NSIP-derived fibroblasts.
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Affiliation(s)
- Barbara Orzechowska
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland; (B.O.); (J.P.)
| | - Kamil Awsiuk
- The Marian Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-428 Krakow, Poland;
- Jagiellonian Center of Biomedical Imaging, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
| | - Dawid Wnuk
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland;
| | - Joanna Pabijan
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland; (B.O.); (J.P.)
| | - Tomasz Stachura
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Jakubowskiego 2, 30-688 Krakow, Poland; (T.S.); (J.S.); (K.S.)
| | - Jerzy Soja
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Jakubowskiego 2, 30-688 Krakow, Poland; (T.S.); (J.S.); (K.S.)
| | - Krzysztof Sładek
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Jakubowskiego 2, 30-688 Krakow, Poland; (T.S.); (J.S.); (K.S.)
| | - Joanna Raczkowska
- The Marian Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-428 Krakow, Poland;
- Jagiellonian Center of Biomedical Imaging, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
- Correspondence:
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23
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Chester D, Lee V, Wagner P, Nordberg M, Fisher MB, Brown AC. Elucidating the combinatorial effect of substrate stiffness and surface viscoelasticity on cellular phenotype. J Biomed Mater Res A 2022; 110:1224-1237. [PMID: 35107204 PMCID: PMC9305170 DOI: 10.1002/jbm.a.37367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/24/2021] [Accepted: 01/21/2022] [Indexed: 12/03/2022]
Abstract
Cells maintain tensional homeostasis by monitoring the mechanics of their microenvironment. In order to understand this mechanotransduction phenomenon, hydrogel materials have been developed with either controllable linear elastic or viscoelastic properties. Native biological tissues, and biomaterials used for medical purposes, often have complex mechanical properties. However, due to the difficulty in completely decoupling the elastic and viscous components of hydrogel materials, the effect of complex composite materials on cellular responses has largely gone unreported. Here, we characterize a novel composite hydrogel system capable of decoupling and individually controlling both the bulk stiffness and surface viscoelasticity of the material by combining polyacrylamide (PA) gels with microgel thin films. By taking advantage of the high degree of control over stiffness offered by PA gels and viscoelasticity, in terms of surface loss tangent, of microgel thin films, it is possible to study the influence that bulk substrate stiffness and surface loss tangent have on complex fibroblast responses, including cellular and nuclear morphology and gene expression. This material system provides a facile method for investigating cellular responses to complex material mechanics with great precision and allows for a greater understanding of cellular mechanotransduction mechanisms than previously possible through current model material platforms.
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Affiliation(s)
- Daniel Chester
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Veronica Lee
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Paul Wagner
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina, USA
| | - Matthew Nordberg
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Matthew B Fisher
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Ashley C Brown
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
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24
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Ramis J, Middlewick R, Pappalardo F, Cairns JT, Stewart ID, John AE, Naveed SUN, Krishnan R, Miller S, Shaw DE, Brightling CE, Buttery L, Rose F, Jenkins G, Johnson SR, Tatler AL. Lysyl oxidase-like 2 is increased in asthma and contributes to asthmatic airway remodelling. Eur Respir J 2022; 60:13993003.04361-2020. [PMID: 34996828 PMCID: PMC9260127 DOI: 10.1183/13993003.04361-2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 11/08/2021] [Indexed: 12/04/2022]
Abstract
Background Airway smooth muscle (ASM) cells are fundamental to asthma pathogenesis, influencing bronchoconstriction, airway hyperresponsiveness and airway remodelling. The extracellular matrix (ECM) can influence tissue remodelling pathways; however, to date no study has investigated the effect of ASM ECM stiffness and cross-linking on the development of asthmatic airway remodelling. We hypothesised that transforming growth factor-β (TGF-β) activation by ASM cells is influenced by ECM in asthma and sought to investigate the mechanisms involved. Methods This study combines in vitro and in vivo approaches: human ASM cells were used in vitro to investigate basal TGF-β activation and expression of ECM cross-linking enzymes. Human bronchial biopsies from asthmatic and nonasthmatic donors were used to confirm lysyl oxidase like 2 (LOXL2) expression in ASM. A chronic ovalbumin (OVA) model of asthma was used to study the effect of LOXL2 inhibition on airway remodelling. Results We found that asthmatic ASM cells activated more TGF-β basally than nonasthmatic controls and that diseased cell-derived ECM influences levels of TGF-β activated. Our data demonstrate that the ECM cross-linking enzyme LOXL2 is increased in asthmatic ASM cells and in bronchial biopsies. Crucially, we show that LOXL2 inhibition reduces ECM stiffness and TGF-β activation in vitro, and can reduce subepithelial collagen deposition and ASM thickness, two features of airway remodelling, in an OVA mouse model of asthma. Conclusion These data are the first to highlight a role for LOXL2 in the development of asthmatic airway remodelling and suggest that LOXL2 inhibition warrants further investigation as a potential therapy to reduce remodelling of the airways in severe asthma. Novel role for matrix cross-linking enzyme LOXL2 in asthmatic airway remodelling: LOXL2 is increased in #asthma but LOXL2 inhibition reduces matrix stiffness in airway smooth muscle cells and reduces remodelling in vivohttps://bit.ly/3FnzGb3
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Affiliation(s)
- Jopeth Ramis
- Biodiscovery Institute, University of Nottingham, UK.,Department of Chemical Engineering, Technological Institute of the Philippines, Philippines
| | - Robert Middlewick
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | | | - Jennifer T Cairns
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Iain D Stewart
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London, UK
| | - Alison E John
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London, UK
| | - Shams-Un-Nisa Naveed
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Institute for Lung Health, Leicester NIHR Biomedical Research Centre, University of Leicester, UK
| | - Ramaswamy Krishnan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, USA
| | - Suzanne Miller
- Biodiscovery Institute, University of Nottingham, UK.,Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Dominick E Shaw
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Christopher E Brightling
- Institute for Lung Health, Leicester NIHR Biomedical Research Centre, University of Leicester, UK
| | - Lee Buttery
- Biodiscovery Institute, University of Nottingham, UK
| | - Felicity Rose
- Biodiscovery Institute, University of Nottingham, UK
| | - Gisli Jenkins
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London, UK
| | - Simon R Johnson
- Biodiscovery Institute, University of Nottingham, UK.,Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Amanda L Tatler
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
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25
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Joseph C, Tatler AL. Pathobiology of Airway Remodeling in Asthma: The Emerging Role of Integrins. J Asthma Allergy 2022; 15:595-610. [PMID: 35592385 PMCID: PMC9112045 DOI: 10.2147/jaa.s267222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/25/2022] [Indexed: 12/19/2022] Open
Abstract
Airway remodeling is a complex clinical feature of asthma that involves long-term disruption and modification of airway architecture, which contributes significantly to airway hyperresponsiveness (AHR) and lung function decline. It is characterized by thickening of the airway smooth muscle layer, deposition of a matrix below the airway epithelium, resulting in subepithelial fibrosis, changes within the airway epithelium, leading to disruption of the barrier, and excessive mucous production and angiogenesis within the airway wall. Airway remodeling contributes to stiffer and less compliant airways in asthma and leads to persistent, irreversible airflow obstruction. Current asthma treatments aim to reduce airway inflammation and exacerbations but none are targeted towards airway remodeling. Inhibiting the development of airway remodeling or reversing established remodeling has the potential to dramatically improve symptoms and disease burden in asthmatic patients. Integrins are a family of transmembrane heterodimeric proteins that serve as the primary receptors for extracellular matrix (ECM) components, mediating cell-cell and cell-ECM interactions to initiate intracellular signaling cascades. Cells present within the lungs, including structural and inflammatory cells, express a wide and varying range of integrin heterodimer combinations and permutations. Integrins are emerging as an important regulator of inflammation, repair, remodeling, and fibrosis in the lung, particularly in chronic lung diseases such as asthma. Here, we provide a comprehensive summary of the current state of knowledge on integrins in the asthmatic airway and how these integrins promote the remodeling process, and emphasize their potential involvement in airway disease.
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Affiliation(s)
- Chitra Joseph
- Centre for Respiratory Research, National Institute for Health Research Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - Amanda L Tatler
- Centre for Respiratory Research, National Institute for Health Research Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
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26
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Walker M, Godin M, Pelling AE. Mechanical stretch sustains myofibroblast phenotype and function in microtissues through latent TGF-β1 activation. Integr Biol (Camb) 2021; 12:199-210. [PMID: 32877929 DOI: 10.1093/intbio/zyaa015] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 06/25/2020] [Accepted: 07/28/2020] [Indexed: 12/18/2022]
Abstract
Developing methods to study tissue mechanics and myofibroblast activation may lead to new targets for therapeutic treatments that are urgently needed for fibrotic disease. Microtissue arrays are a promising approach to conduct relatively high-throughput research into fibrosis as they recapitulate key biomechanical aspects of the disease through a relevant 3D extracellular environment. In early work, our group developed a device called the MVAS-force to stretch microtissues while enabling simultaneous assessment of their dynamic mechanical behavior. Here, we investigated TGF-β1-induced fibroblast to myofibroblast differentiation in microtissue cultures using our MVAS-force device through assessing α-SMA expression, contractility and stiffness. In doing so, we linked cell-level phenotypic changes to functional changes that characterize the clinical manifestation of fibrotic disease. As expected, TGF-β1 treatment promoted a myofibroblastic phenotype and microtissues became stiffer and possessed increased contractility. These changes were partially reversible upon TGF-β1 withdrawal under a static condition, while, in contrast, long-term cyclic stretching maintained myofibroblast activation. This pro-fibrotic effect of mechanical stretching was absent when TGF-β1 receptors were inhibited. Furthermore, stretching promoted myofibroblast differentiation when microtissues were given latent TGF-β1. Altogether, these results suggest that external mechanical stretch may activate latent TGF-β1 and, accordingly, might be a powerful stimulus for continued myofibroblast activation to progress fibrosis. Further exploration of this pathway with our approach may yield new insights into myofibroblast activation and more effective therapeutic treatments for fibrosis.
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Affiliation(s)
- Matthew Walker
- Department of Biology, Gendron Hall, 30 Marie Curie, University of Ottawa, Ottawa, ON, K1N5N5, Canada
| | - Michel Godin
- Department of Physics, 150 Louis Pasteur pvt., STEM Complex, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,Department of Mechanical Engineering, Colonel By Hall, 161 Louis Pasteur, University of Ottawa, Ottawa, ON K1N6N5, Canada.,Ottawa-Carleton Institute for Biomedical Engineering, Colonel By Hall, 161 Louis Pasteur, University of Ottawa, Ottawa, ON K1N6N5, Canada
| | - Andrew E Pelling
- Department of Biology, Gendron Hall, 30 Marie Curie, University of Ottawa, Ottawa, ON, K1N5N5, Canada.,Department of Physics, 150 Louis Pasteur pvt., STEM Complex, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,Institute for Science Society and Policy, Simard Hall, 60 University, University of Ottawa, Ottawa, ON, K1N5N5, Canada.,SymbioticA, School of Human Sciences, University of Western Australia, Perth, WA 6009, Australia
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27
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Bannerman D, Pascual-Gil S, Floryan M, Radisic M. Bioengineering strategies to control epithelial-to-mesenchymal transition for studies of cardiac development and disease. APL Bioeng 2021; 5:021504. [PMID: 33948525 PMCID: PMC8068500 DOI: 10.1063/5.0033710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/15/2021] [Indexed: 12/24/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is a process that occurs in a wide range of tissues and environments, in response to numerous factors and conditions, and plays a critical role in development, disease, and regeneration. The process involves epithelia transitioning into a mobile state and becoming mesenchymal cells. The investigation of EMT processes has been important for understanding developmental biology and disease progression, enabling the advancement of treatment approaches for a variety of disorders such as cancer and myocardial infarction. More recently, tissue engineering efforts have also recognized the importance of controlling the EMT process. In this review, we provide an overview of the EMT process and the signaling pathways and factors that control it, followed by a discussion of bioengineering strategies to control EMT. Important biological, biomaterial, biochemical, and physical factors and properties that have been utilized to control EMT are described, as well as the studies that have investigated the modulation of EMT in tissue engineering and regenerative approaches in vivo, with a specific focus on the heart. Novel tools that can be used to characterize and assess EMT are discussed and finally, we close with a perspective on new bioengineering methods that have the potential to transform our ability to control EMT, ultimately leading to new therapies.
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28
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Baruffaldi D, Palmara G, Pirri C, Frascella F. 3D Cell Culture: Recent Development in Materials with Tunable Stiffness. ACS APPLIED BIO MATERIALS 2021; 4:2233-2250. [PMID: 35014348 DOI: 10.1021/acsabm.0c01472] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
It is widely accepted that three-dimensional cell culture systems simulate physiological conditions better than traditional 2D systems. Although extracellular matrix components strongly modulate cell behavior, several studies underlined the importance of mechanosensing in the control of different cell functions such as growth, proliferation, differentiation, and migration. Human tissues are characterized by different degrees of stiffness, and various pathologies (e.g., tumor or fibrosis) cause changes in the mechanical properties through the alteration of the extracellular matrix structure. Additionally, these modifications have an impact on disease progression and on therapy response. Hence, the development of platforms whose stiffness could be modulated may improve our knowledge of cell behavior under different mechanical stress stimuli. In this review, we have analyzed the mechanical diversity of healthy and diseased tissues, and we have summarized recently developed materials with a wide range of stiffness.
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Affiliation(s)
- Désirée Baruffaldi
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy.,PolitoBIOMed Lab, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy
| | - Gianluca Palmara
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy.,PolitoBIOMed Lab, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy
| | - Candido Pirri
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy.,PolitoBIOMed Lab, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy.,Center for Sustainable Futures@Polito, Istituto Italiano di Tecnologia, Via Livorno 60, Turin 10144, Italy
| | - Francesca Frascella
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy.,PolitoBIOMed Lab, Politecnico di Torino, C.so Duca degli Abruzzi 24, Turin 10129, Italy
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29
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Feng J, Xu X, Fan X, Yi Q, Tang L. BAF57/SMARCE1 Interacting with Splicing Factor SRSF1 Regulates Mechanical Stress-Induced Alternative Splicing of Cyclin D1. Genes (Basel) 2021; 12:genes12020306. [PMID: 33670012 PMCID: PMC7927079 DOI: 10.3390/genes12020306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 01/13/2023] Open
Abstract
Background: Cyclin D1 regulates cyclin-dependent protein kinase activity of the cell cycle, and cyclin D1 alternative splicing generates a cyclin D1b isoform, acting as a mediator of aberrant cellular proliferation. As alternative splicing processes are sensitive to mechanical stimuli, whether the alternative splicing of cyclin D1 is regulated by mechanical stress and what kinds of factors may act as the regulator of mechano-induced alternative splicing remain unknown. Methods: The alternative splicing of Cyclin D1 was examined using reverse transcription polymerase chain reaction (RT-PCR) in osteoblast cell lines and keratinocyte cells loaded by a cyclic stretch. The expression of splicing factors and switching defective/sucrose non-fermenting (SWI/SNF) complex subunits were detected in stretched cells using real-time quantitative PCR (RT-qPCR). The protein interaction was tested by co-immunoprecipitation assay (Co-IP). Results:Cyclin D1 expression decreased with its splice variant upregulated in stretched cells. Serine/arginine-rich splicing factor 1 (SRSF1) and SWI/SNF complex subunit Brahma-related gene-1-associated factor 57 (BAF57), also named SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily E member 1 (SMARCE1), could respond to mechanical stimuli. Overexpression and knockdown experiments indicated the BAF57/SMARCE1 is probably a critical factor regulating the alternative splicing of cyclin D1. Co-IP showed an interaction between BAF57/SMARCE1 and SRSF1, implying a possible underlying mechanism of the regulator role of BAF57/SMARCE1 in the splicing process of cyclin D1. Conclusions: The splicing factor SRSF1 and BAF57/SMARCE1 are possibly responsible for the mechanical stress-induced alternative splicing of cyclin D1.
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Affiliation(s)
- Jianguo Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 401120, China; (J.F.); (X.X.)
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
- Department of Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xichao Xu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 401120, China; (J.F.); (X.X.)
| | - Xin Fan
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing 401120, China;
| | - Qian Yi
- Department of Physiology, College of Preclinical Medicine, Southwest Medical University, Luzhou 646000, China;
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 401120, China; (J.F.); (X.X.)
- Correspondence: ; Tel.: 86-23-65102507
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30
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Liu L, Stephens B, Bergman M, May A, Chiang T. Role of Collagen in Airway Mechanics. Bioengineering (Basel) 2021; 8:13. [PMID: 33467161 PMCID: PMC7830870 DOI: 10.3390/bioengineering8010013] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/06/2021] [Accepted: 01/09/2021] [Indexed: 12/13/2022] Open
Abstract
Collagen is the most abundant airway extracellular matrix component and is the primary determinant of mechanical airway properties. Abnormal airway collagen deposition is associated with the pathogenesis and progression of airway disease. Thus, understanding how collagen affects healthy airway tissue mechanics is essential. The impact of abnormal collagen deposition and tissue stiffness has been an area of interest in pulmonary diseases such as cystic fibrosis, asthma, and chronic obstructive pulmonary disease. In this review, we discuss (1) the role of collagen in airway mechanics, (2) macro- and micro-scale approaches to quantify airway mechanics, and (3) pathologic changes associated with collagen deposition in airway diseases. These studies provide important insights into the role of collagen in airway mechanics. We summarize their achievements and seek to provide biomechanical clues for targeted therapies and regenerative medicine to treat airway pathology and address airway defects.
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Affiliation(s)
- Lumei Liu
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43215, USA;
| | - Brooke Stephens
- College of Medicine, The Ohio State University, Columbus, OH 43210, USA;
| | - Maxwell Bergman
- Department of Otolaryngology-Head & Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA;
| | - Anne May
- Section of Pulmonary Medicine, Nationwide Children’s Hospital, Columbus, OH 43205, USA;
- Department of Pediatrics, The Ohio State University Wexner Medical Center, Columbus, OH 43205, USA
| | - Tendy Chiang
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH 43215, USA;
- Department of Pediatric Otolaryngology, Nationwide Children’s Hospital, Columbus, OH 43205, USA
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31
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Extracellular matrix remodeling associated with bleomycin-induced lung injury supports pericyte-to-myofibroblast transition. Matrix Biol Plus 2020; 10:100056. [PMID: 34195593 PMCID: PMC8233458 DOI: 10.1016/j.mbplus.2020.100056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 12/11/2022] Open
Abstract
Of the many origins of pulmonary myofibroblasts, microvascular pericytes are a known source. Prior literature has established the ability of pericytes to transition into myofibroblasts, but provide limited insight into molecular cues that drive this process during lung injury repair and fibrosis. Fibronectin and RGD-binding integrins have long been considered pro-fibrotic factors in myofibroblast biology, and here we test the hypothesis that these known myofibroblast cues coordinate pericyte-to-myofibroblast transitions. Specifically, we hypothesized that αvβ3 integrin engagement on fibronectin induces pericyte transition into myofibroblastic phenotypes in the murine bleomycin lung injury model. Myosin Heavy Chain 11 (Myh11)-CreERT2 lineage tracing in transgenic mice allows identification of cells of pericyte origin and provides a robust tool for isolating pericytes from tissues for further evaluation. We used this murine model to track and characterize pericyte behaviors during tissue repair. The majority of Myh11 lineage-positive cells are positive for the pericyte surface markers, PDGFRβ (55%) and CD146 (69%), and display typical pericyte morphology with spatial apposition to microvascular networks. After intratracheal bleomycin treatment of mice, Myh11 lineage-positive cells showed significantly increased contractile and secretory markers, as well as αv integrin expression. According to RNASeq measurements, many disease and tissue-remodeling genesets were upregulated in Myh11 lineage-positive cells in response to bleomycin-induced lung injury. In vitro, blocking αvβ3 binding through cycloRGDfK prevented expression of the myofibroblastic marker αSMA relative to controls. In response to RGD-containing provisional matrix proteins present in lung injury, pericytes may alter their integrin profile. Pericyte lineage model enables study of transdifferentiating pericytes. High dimensional flow cytometry used to characterize pulmonary stromal cells Pulmonary pericytes express matrix-remodeling genes and proteins in lung injury. Myofibroblasts derived from pericytes have active αvβ3 integrin. In vitro assay reveals necessity of RGD for pericyte transdifferentiation.
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32
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Raczkowska J, Orzechowska B. Effect of tuned elasticity and chemical modification of substrate on fibrotic and healthy lung fibroblasts. Micron 2020; 139:102948. [PMID: 33065514 DOI: 10.1016/j.micron.2020.102948] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/18/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022]
Abstract
Response to substrate elasticity, dependent on mechanical properties of cells, differs for lung fibroblast derived from idiopathic pulmonary fibrosis (IPF) and the healthy ones. These altered interactions might potentially act as a 'biomarker' for easy and reliable IPF diagnosis. In this work, systematic studies on the effect of polydimethylsiloxane (PDMS) substrate elasticity, tuned stepwise from 600 kPa to 1.5 MPa on the growth of IPF-derived (LL97A) and healthy (LL24) lung fibroblasts were reported. Additionally, impact of substrate chemistry on both cell lines was studied for fibroblasts cultured on glass substrates modified with three organosilanes - 3-aminopropyltriethoxysilane (APTES), 3-mercaptopropyltriethoxysilane (MPTES) and 3-glycidyloxypropyl trimethoxysilane (GOPS), with different end groups. Finally, the effect of the simultaneous modification of mechanical and chemical properties on the cellular behavior was studied for fibroblast cultured on PDMS substrates covered with silanes. The growth of cells was traced using fluorescence microscopy and analyzed quantitatively by nucleus-cytoplasm ratio, indicating strong, cell-dependent impact of substrate elasticity dominating over effect of chemical modification.
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Affiliation(s)
- Joanna Raczkowska
- The Marian Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-428 Kraków, Poland.
| | - Barbara Orzechowska
- Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland
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Micropillar-arrayed surfaces promote transforming growth factor beta 1 induced epithelial to mesenchymal transition by focal adhesion kinase-related signaling in A549 cells. Chin Med J (Engl) 2020; 134:754-756. [PMID: 33060368 PMCID: PMC7990007 DOI: 10.1097/cm9.0000000000001139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Effect of Substrate Stiffness on Physicochemical Properties of Normal and Fibrotic Lung Fibroblasts. MATERIALS 2020; 13:ma13204495. [PMID: 33050502 PMCID: PMC7600549 DOI: 10.3390/ma13204495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 02/07/2023]
Abstract
The presented research aims to verify whether physicochemical properties of lung fibroblasts, modified by substrate stiffness, can be used to discriminate between normal and fibrotic cells from idiopathic pulmonary fibrosis (IPF). The impact of polydimethylsiloxane (PDMS) substrate stiffness on the physicochemical properties of normal (LL24) and IPF-derived lung fibroblasts (LL97A) was examined in detail. The growth and elasticity of cells were assessed using fluorescence microscopy and atomic force microscopy working in force spectroscopy mode, respectively. The number of fibroblasts, as well as their shape and the arrangement, strongly depends on the mechanical properties of the substrate. Moreover, normal fibroblasts remain more rigid as compared to their fibrotic counterparts, which may indicate the impairments of IPF-derived fibroblasts induced by the fibrosis process. The chemical properties of normal and IPF-derived lung fibroblasts inspected using time-of-flight secondary ion mass spectrometry, and analyzed complexly with principal component analysis (PCA), show a significant difference in the distribution of cholesterol and phospholipids. Based on the observed distinctions between healthy and fibrotic cells, the mechanical properties of cells may serve as prospective diagnostic biomarkers enabling fast and reliable identification of idiopathic pulmonary fibrosis (IPF).
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Cochard M, Ledoux F, Landkocz Y. Atmospheric fine particulate matter and epithelial mesenchymal transition in pulmonary cells: state of the art and critical review of the in vitro studies. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2020; 23:293-318. [PMID: 32921295 DOI: 10.1080/10937404.2020.1816238] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Exposure to fine particulate matter (PM2.5) has been associated with several diseases including asthma, chronic obstructive pulmonary disease (COPD) and lung cancer. Mechanisms such as oxidative stress and inflammation are well-documented and are considered as the starting point of some of the pathological responses. However, a number of studies also focused on epithelial-mesenchymal transition (EMT), which is a biological process involved in fibrotic diseases and cancer progression notably via metastasis induction. Up until now, EMT was widely reported in vivo and in vitro in various cell types but investigations dealing with in vitro studies of PM2.5 induced EMT in pulmonary cells are limited. Further, few investigations combined the necessary endpoints for validation of the EMT state in cells: such as expression of several surface, cytoskeleton or extracellular matrix biomarkers and activation of transcription markers and epigenetic factors. Studies explored various cell types, cultured under differing conditions and exposed for various durations to different doses. Such unharmonized protocols (1) might introduce bias, (2) make difficult comparison of results and (3) preclude reaching a definitive conclusion regarding the ability of airborne PM2.5 to induce EMT in pulmonary cells. Some questions remain, in particular the specific PM2.5 components responsible for EMT triggering. The aim of this review is to examine the available PM2.5 induced EMT in vitro studies on pulmonary cells with special emphasis on the critical parameters considered to carry out future research in this field. This clarification appears necessary for production of reliable and comparable results.
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Affiliation(s)
- Margaux Cochard
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, SFR Condorcet FR-CNRS-3417, Univ. Littoral Côte d'Opale (ULCO) , Dunkerque, France
| | - Frédéric Ledoux
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, SFR Condorcet FR-CNRS-3417, Univ. Littoral Côte d'Opale (ULCO) , Dunkerque, France
| | - Yann Landkocz
- Unité de Chimie Environnementale et Interactions sur le Vivant, UCEIV UR4492, SFR Condorcet FR-CNRS-3417, Univ. Littoral Côte d'Opale (ULCO) , Dunkerque, France
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36
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Fiore VF, Krajnc M, Quiroz FG, Levorse J, Pasolli HA, Shvartsman SY, Fuchs E. Mechanics of a multilayer epithelium instruct tumour architecture and function. Nature 2020; 585:433-439. [PMID: 32879493 DOI: 10.1038/s41586-020-2695-9] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 07/22/2020] [Indexed: 01/24/2023]
Abstract
Loss of normal tissue architecture is a hallmark of oncogenic transformation1. In developing organisms, tissues architectures are sculpted by mechanical forces during morphogenesis2. However, the origins and consequences of tissue architecture during tumorigenesis remain elusive. In skin, premalignant basal cell carcinomas form 'buds', while invasive squamous cell carcinomas initiate as 'folds'. Here, using computational modelling, genetic manipulations and biophysical measurements, we identify the biophysical underpinnings and biological consequences of these tumour architectures. Cell proliferation and actomyosin contractility dominate tissue architectures in monolayer, but not multilayer, epithelia. In stratified epidermis, meanwhile, softening and enhanced remodelling of the basement membrane promote tumour budding, while stiffening of the basement membrane promotes folding. Additional key forces stem from the stratification and differentiation of progenitor cells. Tumour-specific suprabasal stiffness gradients are generated as oncogenic lesions progress towards malignancy, which we computationally predict will alter extensile tensions on the tumour basement membrane. The pathophysiologic ramifications of this prediction are profound. Genetically decreasing the stiffness of basement membranes increases membrane tensions in silico and potentiates the progression of invasive squamous cell carcinomas in vivo. Our findings suggest that mechanical forces-exerted from above and below progenitors of multilayered epithelia-function to shape premalignant tumour architectures and influence tumour progression.
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Affiliation(s)
- Vincent F Fiore
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
| | - Matej Krajnc
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.,Jozef Stefan Institute, Ljubljana, Slovenia
| | - Felipe Garcia Quiroz
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - John Levorse
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
| | - H Amalia Pasolli
- Electron Microscopy Resource Center, The Rockefeller University, New York, NY, USA
| | - Stanislav Y Shvartsman
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ, USA.,Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, USA.,Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Elaine Fuchs
- Howard Hughes Medical Institute, Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA.
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Bingham GC, Lee F, Naba A, Barker TH. Spatial-omics: Novel approaches to probe cell heterogeneity and extracellular matrix biology. Matrix Biol 2020; 91-92:152-166. [DOI: 10.1016/j.matbio.2020.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022]
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Kosheleva NV, Efremov YM, Shavkuta BS, Zurina IM, Zhang D, Zhang Y, Minaev NV, Gorkun AA, Wei S, Shpichka AI, Saburina IN, Timashev PS. Cell spheroid fusion: beyond liquid drops model. Sci Rep 2020; 10:12614. [PMID: 32724115 PMCID: PMC7387529 DOI: 10.1038/s41598-020-69540-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/19/2020] [Indexed: 01/14/2023] Open
Abstract
Biological self-assembly is crucial in the processes of development, tissue regeneration, and maturation of bioprinted tissue-engineered constructions. The cell aggregates-spheroids-have become widely used model objects in the study of this phenomenon. Existing approaches describe the fusion of cell aggregates by analogy with the coalescence of liquid droplets and ignore the complex structural properties of spheroids. Here, we analyzed the fusion process in connection with structure and mechanical properties of the spheroids from human somatic cells of different phenotypes: mesenchymal stem cells from the limbal eye stroma and epithelial cells from retinal pigment epithelium. A nanoindentation protocol was applied for the mechanical measurements. We found a discrepancy with the liquid drop fusion model: the fusion was faster for spheroids from epithelial cells with lower apparent surface tension than for mesenchymal spheroids with higher surface tension. This discrepancy might be caused by biophysical processes such as extracellular matrix remodeling in the case of mesenchymal spheroids and different modes of cell migration. The obtained results will contribute to the development of more realistic models for spheroid fusion that would further provide a helpful tool for constructing cell aggregates with required properties both for fundamental studies and tissue reparation.
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Affiliation(s)
- Nastasia V Kosheleva
- FSBSI "Institute of General Pathology and Pathophysiology", 8, Baltiyskaya st., Moscow, 125315, Russia.
- FSBEI FPE "Russian Medical Academy of Continuous Professional Education" of the Ministry of Healthcare of Russia, 2/1, Barrikadnaya St., Moscow, 125993, Russia.
- Faculty of Biology, Lomonosov Moscow State University, 12-1, Leninskie Gory, Moscow, 119234, Russia.
| | - Yuri M Efremov
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2, Trubetskaya St., Moscow, 119991, Russia
| | - Boris S Shavkuta
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2, Trubetskaya St., Moscow, 119991, Russia
- Institute of Photonic Technologies, Research Center "Crystallography and Photonics" RAS, 2, Pionerskaya st., Troitsk, Moscow, 142190, Russia
| | - Irina M Zurina
- FSBSI "Institute of General Pathology and Pathophysiology", 8, Baltiyskaya st., Moscow, 125315, Russia
- FSBEI FPE "Russian Medical Academy of Continuous Professional Education" of the Ministry of Healthcare of Russia, 2/1, Barrikadnaya St., Moscow, 125993, Russia
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2, Trubetskaya St., Moscow, 119991, Russia
| | - Deying Zhang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yuanyuan Zhang
- Wake Forest University Institute for Regenerative Medicine, Winston-Salem, NC, USA
| | - Nikita V Minaev
- Institute of Photonic Technologies, Research Center "Crystallography and Photonics" RAS, 2, Pionerskaya st., Troitsk, Moscow, 142190, Russia
| | - Anastasiya A Gorkun
- FSBSI "Institute of General Pathology and Pathophysiology", 8, Baltiyskaya st., Moscow, 125315, Russia
- FSBEI FPE "Russian Medical Academy of Continuous Professional Education" of the Ministry of Healthcare of Russia, 2/1, Barrikadnaya St., Moscow, 125993, Russia
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2, Trubetskaya St., Moscow, 119991, Russia
| | - Shicheng Wei
- Department of Oral and Maxillofacial Surgery/Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Anastasia I Shpichka
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2, Trubetskaya St., Moscow, 119991, Russia
| | - Irina N Saburina
- FSBSI "Institute of General Pathology and Pathophysiology", 8, Baltiyskaya st., Moscow, 125315, Russia
- FSBEI FPE "Russian Medical Academy of Continuous Professional Education" of the Ministry of Healthcare of Russia, 2/1, Barrikadnaya St., Moscow, 125993, Russia
| | - Peter S Timashev
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2, Trubetskaya St., Moscow, 119991, Russia
- Institute of Photonic Technologies, Research Center "Crystallography and Photonics" RAS, 2, Pionerskaya st., Troitsk, Moscow, 142190, Russia
- Department of Polymers and Composites, N.N. Semenov Institute of Chemical Physics, 4, Kosygin st., Moscow, 119991, Russia
- Chemistry Department, Lomonosov Moscow State University, 1‑3, Leninskiye Gory, Moscow, 119991, Russia
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Deng Z, Fear MW, Suk Choi Y, Wood FM, Allahham A, Mutsaers SE, Prêle CM. The extracellular matrix and mechanotransduction in pulmonary fibrosis. Int J Biochem Cell Biol 2020; 126:105802. [PMID: 32668329 DOI: 10.1016/j.biocel.2020.105802] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 12/11/2022]
Abstract
Pulmonary fibrosis is characterised by excessive scarring in the lung which leads to compromised lung function, serious breathing problems and in some diseases, death. It includes several lung disorders with idiopathic pulmonary fibrosis (IPF) the most common and most severe. Pulmonary fibrosis is considered to be perpetuated by aberrant wound healing which leads to fibroblast accumulation, differentiation and activation, and deposition of excessive amounts of extracellular matrix (ECM) components, in particular, collagen. Recent studies have identified the importance of changes in the composition and structure of lung ECM during the development of pulmonary fibrosis and the interaction between ECM and lung cells. There is strong evidence that increased matrix stiffness induces changes in cell function including proliferation, migration, differentiation and activation. Understanding how changes in the ECM microenvironment influence cell behaviour during fibrogenesis, and the mechanisms regulating these changes, will provide insight for developing new treatments.
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Affiliation(s)
- Zhenjun Deng
- Burn Injury Research Unit, School of Biomedical Sciences, The University of Western Australia, Nedlands, 6009, WA, Australia
| | - Mark W Fear
- Burn Injury Research Unit, School of Biomedical Sciences, The University of Western Australia, Nedlands, 6009, WA, Australia; Institute for Respiratory Health, Nedlands, WA, Australia
| | - Yu Suk Choi
- School of Human Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Fiona M Wood
- Burn Injury Research Unit, School of Biomedical Sciences, The University of Western Australia, Nedlands, 6009, WA, Australia; Burns Service of Western Australia, Perth Children's Hospital, Nedlands, WA, Australia; Fiona Stanley Hospital, Murdoch, WA, Australia
| | - Amira Allahham
- Burn Injury Research Unit, School of Biomedical Sciences, The University of Western Australia, Nedlands, 6009, WA, Australia
| | - Steven E Mutsaers
- Institute for Respiratory Health, Nedlands, WA, Australia; Centre for Respiratory Health, School of Biomedical Sciences, The University of Western Australia, Nedlands, WA, Australia; Centre for Cell Therapy and Regenerative Medicine, School of Biomedical Sciences, The University of Western Australia, Nedlands, WA, Australia
| | - Cecilia M Prêle
- Institute for Respiratory Health, Nedlands, WA, Australia; Centre for Respiratory Health, School of Biomedical Sciences, The University of Western Australia, Nedlands, WA, Australia; Centre for Cell Therapy and Regenerative Medicine, School of Biomedical Sciences, The University of Western Australia, Nedlands, WA, Australia.
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40
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Temples MN, Adjei IM, Nimocks PM, Djeu J, Sharma B. Engineered Three-Dimensional Tumor Models to Study Natural Killer Cell Suppression. ACS Biomater Sci Eng 2020; 6:4179-4199. [PMID: 33463353 DOI: 10.1021/acsbiomaterials.0c00259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A critical hurdle associated with natural killer (NK) cell immunotherapies is inadequate infiltration and function in the solid tumor microenvironment. Well-controlled 3D culture systems could advance our understanding of the role of various biophysical and biochemical cues that impact NK cell migration in solid tumors. The objectives of this study were to establish a biomaterial which (i) supports NK cell migration and (ii) recapitulates features of the in vivo solid tumor microenvironment, to study NK infiltration and function in a 3D system. Using peptide-functionalized poly(ethylene glycol)-based hydrogels, the extent of NK-92 cell migration was observed to be largely dependent on the density of integrin binding sites and the presence of matrix metalloproteinase degradable sites. When lung cancer cells were encapsulated into the hydrogels to create tumor microenvironments, the extent of NK-92 cell migration and functional activity was dependent on the cancer cell type and duration of 3D culture. NK-92 cells showed greater migration into the models consisting of nonmetastatic A549 cells relative to metastatic H1299 cells, and reduced migration in both models when cancer cells were cultured for 7 days versus 1 day. In addition, the production of NK cell-related pro-inflammatory cytokines and chemokines was reduced in H1299 models relative to A549 models. These differences in NK-92 cell migration and cytokine/chemokine production corresponded to differences in the production of various immunomodulatory molecules by the different cancer cells, namely, the H1299 models showed increased stress ligand shedding and immunosuppressive cytokine production, particularly TGF-β. Indeed, inhibition of TGF-β receptor I in NK-92 cells restored their infiltration in H1299 models to levels similar to that in A549 models and increased overall infiltration in both models. Relative to conventional 2D cocultures, NK-92 cell mediated cytotoxicity was reduced in the 3D tumor models, suggesting the hydrogel serves to mimic some features of the biophysical barriers in in vivo tumor microenvironments. This study demonstrates the feasibility of a synthetic hydrogel system for investigating the biophysical and biochemical cues impacting NK cell infiltration and NK cell-cancer cell interactions in the solid tumor microenvironment.
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Affiliation(s)
- Madison N Temples
- J. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, Florida 32611-6131, United States
| | - Isaac M Adjei
- J. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, Florida 32611-6131, United States
| | - Phoebe M Nimocks
- J. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, Florida 32611-6131, United States
| | - Julie Djeu
- Department of Immunology, Moffitt Cancer Center MRC 4E, 12902 Magnolia Drive, Tampa, Florida 33612-9497, United States
| | - Blanka Sharma
- J. Crayton Pruitt Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, Florida 32611-6131, United States
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41
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Sant S, Wang D, Agarwal R, Dillender S, Ferrell N. Glycation alters the mechanical behavior of kidney extracellular matrix. Matrix Biol Plus 2020; 8:100035. [PMID: 33543034 PMCID: PMC7852306 DOI: 10.1016/j.mbplus.2020.100035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/30/2020] [Accepted: 03/30/2020] [Indexed: 12/20/2022] Open
Abstract
The mechanical properties of the extracellular matrix (ECM) are important in maintaining normal physiological function, and changes in ECM mechanics drive disease. The biochemical structure of the ECM is modified with aging and in diseases such as diabetes. One mechanism of ECM modification is the non-enzymatic reaction between sugars and ECM proteins resulting in formation of advanced glycation end products (AGEs). Some AGE reactions result in formation of molecular crosslinks within or between matrix proteins, but it is not clear how sugar-mediated biochemical modification of the ECM translates to changes in kidney ECM mechanical properties. AGE-mediated changes in ECM mechanics may have pathological consequences in diabetic kidney disease. To determine how sugars alter the mechanical properties of the kidney ECM, we employ custom methodologies to evaluate the mechanical properties of isolated tubular basement membrane (TBM) and glomerular ECM. Results show that the mechanical properties of TBM and glomerular ECM stiffness were altered by incubation in glucose and ribose. Mechanical behavior of TBM and glomerular ECM were further evaluated using mechanical models for hyperelastic materials in tension and compression. Increased ECM stiffness following sugar modification corresponded to increased crosslinking as determined by ECM fluorescence and reduced pepsin extractability of sugar modified ECM. These results show that sugar-induced modifications significantly affect the mechanical properties of kidney ECM. AGE-mediated changes in ECM mechanics may be important in progression of chronic diseases including diabetic kidney disease.
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Affiliation(s)
- Snehal Sant
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, United States of America
| | - Dan Wang
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, United States of America
| | - Rishabh Agarwal
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, United States of America
| | - Sarah Dillender
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, United States of America
| | - Nicholas Ferrell
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, United States of America.,Department of Biomedical Engineering, Vanderbilt University, United States of America.,Vanderbilt Center for Kidney Disease, United States of America
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Davidson MD, Burdick JA, Wells RG. Engineered Biomaterial Platforms to Study Fibrosis. Adv Healthc Mater 2020; 9:e1901682. [PMID: 32181987 PMCID: PMC7274888 DOI: 10.1002/adhm.201901682] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 12/13/2022]
Abstract
Many pathologic conditions lead to the development of tissue scarring and fibrosis, which are characterized by the accumulation of abnormal extracellular matrix (ECM) and changes in tissue mechanical properties. Cells within fibrotic tissues are exposed to dynamic microenvironments that may promote or prolong fibrosis, which makes it difficult to treat. Biomaterials have proved indispensable to better understand how cells sense their extracellular environment and are now being employed to study fibrosis in many tissues. As mechanical testing of tissues becomes more routine and biomaterial tools become more advanced, the impact of biophysical factors in fibrosis are beginning to be understood. Herein, fibrosis from a materials perspective is reviewed, including the role and mechanical properties of ECM components, the spatiotemporal mechanical changes that occur during fibrosis, current biomaterial systems to study fibrosis, and emerging biomaterial systems and tools that can further the understanding of fibrosis initiation and progression. This review concludes by highlighting considerations in promoting wide-spread use of biomaterials for fibrosis investigations and by suggesting future in vivo studies that it is hoped will inspire the development of even more advanced biomaterial systems.
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Affiliation(s)
- Matthew D Davidson
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- NSF Science and Technology Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- NSF Science and Technology Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Rebecca G Wells
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- NSF Science and Technology Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
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Sarker B, Bagchi A, Walter C, Almeida J, Pathak A. Longer collagen fibers trigger multicellular streaming on soft substrates via enhanced forces and cell-cell cooperation. J Cell Sci 2019; 132:jcs226753. [PMID: 31444287 PMCID: PMC6765186 DOI: 10.1242/jcs.226753] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 08/14/2019] [Indexed: 12/14/2022] Open
Abstract
Grouped cells often leave large cell colonies in the form of narrow multicellular streams. However, it remains unknown how collective cell streaming exploits specific matrix properties, like stiffness and fiber length. It is also unclear how cellular forces, cell-cell adhesion and velocities are coordinated within streams. To independently tune stiffness and collagen fiber length, we developed new hydrogels and discovered invasion-like streaming of normal epithelial cells on soft substrates coated with long collagen fibers. Here, streams arise owing to a surge in cell velocities, forces, YAP activity and expression of mesenchymal marker proteins in regions of high-stress anisotropy. Coordinated velocities and symmetric distribution of tensile and compressive stresses support persistent stream growth. Stiff matrices diminish cell-cell adhesions, disrupt front-rear velocity coordination and do not promote sustained fiber-dependent streaming. Rac inhibition reduces cell elongation and cell-cell cooperation, resulting in a complete loss of streaming in all matrix conditions. Our results reveal a stiffness-modulated effect of collagen fiber length on collective cell streaming and unveil a biophysical mechanism of streaming governed by a delicate balance of enhanced forces, monolayer cohesion and cell-cell cooperation.This article has an associated First Person interview with the first authors of the paper.
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Affiliation(s)
- Bapi Sarker
- Department of Mechanical Engineering & Materials Science, Washington University, St Louis, MO 63130, USA
| | - Amrit Bagchi
- Department of Mechanical Engineering & Materials Science, Washington University, St Louis, MO 63130, USA
| | - Christopher Walter
- Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
| | - José Almeida
- Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
| | - Amit Pathak
- Department of Mechanical Engineering & Materials Science, Washington University, St Louis, MO 63130, USA
- Department of Biomedical Engineering, Washington University, St Louis, MO 63130, USA
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44
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Tan Q, Tschumperlin DJ. Epigenome Editing Enters the Arena. A New Tool to Reveal (and Reverse?) Pathologic Gene Regulation. Am J Respir Crit Care Med 2019; 198:549-551. [PMID: 30016116 DOI: 10.1164/rccm.201807-1239ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Qi Tan
- 1 Department of Physiology & Biomedical Engineering Mayo Clinic College of Medicine and Science Rochester Minnesota
| | - Daniel J Tschumperlin
- 1 Department of Physiology & Biomedical Engineering Mayo Clinic College of Medicine and Science Rochester Minnesota
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Scott LE, Weinberg SH, Lemmon CA. Mechanochemical Signaling of the Extracellular Matrix in Epithelial-Mesenchymal Transition. Front Cell Dev Biol 2019; 7:135. [PMID: 31380370 PMCID: PMC6658819 DOI: 10.3389/fcell.2019.00135] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 07/04/2019] [Indexed: 12/20/2022] Open
Abstract
Epithelial-Mesenchymal Transition (EMT) is a critical process in embryonic development in which epithelial cells undergo a transdifferentiation into mesenchymal cells. This process is essential for tissue patterning and organization, and it has also been implicated in a wide array of pathologies. While the intracellular signaling pathways that regulate EMT are well-understood, there is increasing evidence that the mechanical properties and composition of the extracellular matrix (ECM) also play a key role in regulating EMT. In turn, EMT drives changes in the mechanics and composition of the ECM, creating a feedback loop that is tightly regulated in healthy tissues, but is often dysregulated in disease. Here we present a review that summarizes our understanding of how ECM mechanics and composition regulate EMT, and how in turn EMT alters ECM mechanics and composition.
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Affiliation(s)
- Lewis E Scott
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Seth H Weinberg
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Christopher A Lemmon
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
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Love HD, Ao M, Jorgensen S, Swearingen L, Ferrell N, Evans R, Gewin L, Harris RC, Zent R, Roy S, Fissell WH. Substrate Elasticity Governs Differentiation of Renal Tubule Cells in Prolonged Culture. Tissue Eng Part A 2019; 25:1013-1022. [PMID: 30484388 DOI: 10.1089/ten.tea.2018.0182] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
IMPACT STATEMENT Successful clinical tissue engineering requires functional fidelity of the cultured cell to its in vivo counterpart, but this has been elusive in renal tissue engineering. Typically, renal proximal tubule cells in culture have a flattened morphology and do not express key transporters essential to their function. In this article, we show for the first time that in vitro substrate mechanical properties dictate differentiation of cultured renal proximal tubule cells. Remarkably, this effect was only discernable after 4 weeks in culture, longer than usually reported for this cell type. These results demonstrate a new tunable parameter to optimize cell differentiation in renal tissue engineering.
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Affiliation(s)
- Harold D Love
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Mingfang Ao
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Seiver Jorgensen
- 2College of Arts and Science, Vanderbilt University, Nashville, Tennessee
| | - Lindsey Swearingen
- 2College of Arts and Science, Vanderbilt University, Nashville, Tennessee
| | - Nicholas Ferrell
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Rachel Evans
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Leslie Gewin
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Raymond C Harris
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Roy Zent
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Shuvo Roy
- 3Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California
| | - William H Fissell
- 1Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
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Tang RZ, Gu SS, Chen XT, He LJ, Wang KP, Liu XQ. Immobilized Transforming Growth Factor-Beta 1 in a Stiffness-Tunable Artificial Extracellular Matrix Enhances Mechanotransduction in the Epithelial Mesenchymal Transition of Hepatocellular Carcinoma. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14660-14671. [PMID: 30973698 DOI: 10.1021/acsami.9b03572] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cancer progression is regulated by multiple factors of extracellular matrix (ECM). Understanding how cancer cells integrate multiple signaling pathways to achieve specific behaviors remains a challenge because of the lack of appropriate models to copresent and modulate ECM properties. Here we proposed a strategy to build a thin biomaterial matrix by poly(l-lysine) and hyaluronan as an artificial stiffness-tunable ECM. Transforming growth factor-beta 1 (TGF-β1) was used as a biochemical cue to present in an immobilized and spatially controlled manner, with a high loading efficiency of 90%. Either soft matrix with immobilized TGF-β1 (i-TGF) or bare stiff matrix could only promote HCC cells to form the epithelial phenotype, whereas stiff matrix with i-TGF was the only condition to induce the mesenchymal phenotype. Further investigation revealed that i-TGF increased the specific TGF-β1 receptor (TβRI) expression to activate PI3K pathway. i-TGF-TβRI interactions also promoted HCC cell adhesion to enlarge contact area for stiffness sensing, resulting in the raising expression of the mechano-sensor (β1 integrin). Mechanotransduction would then be enhanced by the β1 integrin/vinculin/p-FAK pathway, leading to a noble PI3K activation. Using our model, a novel mechanism was discovered to elucidate regulation of cell fates by coupling mechanotransduction and biochemical signaling.
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Affiliation(s)
| | | | | | - Li-Jie He
- Graphitene Ltd. , Flixborough , North Lincolnshire DN15 8SJ , United Kingdom
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48
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Walter C, Davis JT, Mathur J, Pathak A. Physical defects in basement membrane-mimicking collagen-IV matrices trigger cellular EMT and invasion. Integr Biol (Camb) 2019; 10:342-355. [PMID: 29790537 DOI: 10.1039/c8ib00034d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In fibrosis and cancer, degradation of basement membrane (BM) and cell invasion are considered as key outcomes of a cellular transformation called epithelial-mesenchymal transition (EMT). Here, we pose a converse question - can preexisting physical defects in the BM matrix cause EMT in normal epithelial cells? On a BM-mimicking matrix of collagen-IV-coated polyacrylamide (PA) gel, we have discovered a reverse phenomenon in which preexisting defects trigger EMT in normal epithelial cells. Through spatiotemporal measurements and simulations in silico, we demonstrate that the EMT precedes cellular mechanoactivation on defective matrices, but they occur concurrently on stiff matrices. The defect-dependent EMT caused cell invasion though a stroma-mimicking collagen-I layer, which could be disabled through MMP9 inhibition. Our findings reveal that the known BM degradation caused by cellular EMT and invasion is not a one-way process. Instead, normal epithelial cells can exploit physical defects in the BM matrix to undergo disease-like cellular transformations.
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Affiliation(s)
- Christopher Walter
- Department of Biomedical Engineering, Washington University, St. Louis, USA
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Bailey KE, Floren ML, D'Ovidio TJ, Lammers SR, Stenmark KR, Magin CM. Tissue-informed engineering strategies for modeling human pulmonary diseases. Am J Physiol Lung Cell Mol Physiol 2019; 316:L303-L320. [PMID: 30461289 PMCID: PMC6397349 DOI: 10.1152/ajplung.00353.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 11/13/2018] [Accepted: 11/14/2018] [Indexed: 12/14/2022] Open
Abstract
Chronic pulmonary diseases, including idiopathic pulmonary fibrosis (IPF), pulmonary hypertension (PH), and chronic obstructive pulmonary disease (COPD), account for staggering morbidity and mortality worldwide but have limited clinical management options available. Although great progress has been made to elucidate the cellular and molecular pathways underlying these diseases, there remains a significant disparity between basic research endeavors and clinical outcomes. This discrepancy is due in part to the failure of many current disease models to recapitulate the dynamic changes that occur during pathogenesis in vivo. As a result, pulmonary medicine has recently experienced a rapid expansion in the application of engineering principles to characterize changes in human tissues in vivo and model the resulting pathogenic alterations in vitro. We envision that engineering strategies using precision biomaterials and advanced biomanufacturing will revolutionize current approaches to disease modeling and accelerate the development and validation of personalized therapies. This review highlights how advances in lung tissue characterization reveal dynamic changes in the structure, mechanics, and composition of the extracellular matrix in chronic pulmonary diseases and how this information paves the way for tissue-informed engineering of more organotypic models of human pathology. Current translational challenges are discussed as well as opportunities to overcome these barriers with precision biomaterial design and advanced biomanufacturing techniques that embody the principles of personalized medicine to facilitate the rapid development of novel therapeutics for this devastating group of chronic diseases.
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Affiliation(s)
- Kolene E Bailey
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Michael L Floren
- Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
- Department of Pediatrics, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Tyler J D'Ovidio
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Steven R Lammers
- Department of Bioengineering, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Kurt R Stenmark
- Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
- Department of Pediatrics, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
- Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Chelsea M Magin
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
- Department of Bioengineering, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
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Yin B, Li SS, Lu SH, Mi JY, Zhai HL. Simultaneous quantification of multiple endogenous biothiols in cancer cells based on a multi-signal fluorescent probe. Analyst 2019; 144:4575-4581. [DOI: 10.1039/c9an00691e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The feature information was extracted from the 3D spectrum by the TM method, and the simultaneous quantification of intracellular thiols was realized.
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Affiliation(s)
- Bo Yin
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Sha Sha Li
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Shao Hua Lu
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
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