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Zhang YL, Zhang YQ, Lin HL, Qin YJ, Zeng J, Chen YL, Niu YY, Pang CP, Chu WK, Zhang HY. Epigallocatechin-3-gallate increases autophagic activity attenuating TGF-β1-induced transformation of human Tenon's fibroblasts. Exp Eye Res 2021; 204:108447. [PMID: 33465394 DOI: 10.1016/j.exer.2021.108447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 12/03/2020] [Accepted: 01/12/2021] [Indexed: 02/05/2023]
Abstract
We previously found that epigallocatechin-3-gallate (EGCG) could inhibit the myofibroblast transformation of human Tenon's fibroblasts, however, the underlying mechanism remained unclear. We therefore investigated whether the autophagic regulation involved in the anti-fibrotic function of EGCG. The fibroblasts were subjected to transforming growth factor beta-1 (TGF-β1) induction followed by EGCG treatments. The autophagic flux was examined by transmission electron microscopy and autophagic flux analysis. The levels of autophagy-related proteins (LC3β and p62) and alpha-smooth muscle actin (α-SMA) were measured by Western blot and immunofluorescence. Results showed that TGF-β1 partially inhibited the autophagic function of Tenon's fibroblasts. But this inhibition effect was rescued by LY2157299, a TGF-βR1 selective inhibitor. Compared with the cells treated with TGF-β1 alone, EGCG treatments increased the amount of autophagosomes and autolysosomes, evaluated the ratio of LC3-II to LC3-I and decreased p62 level. Our results indicated that EGCG could recover the activity of autophagy in the TGF-β1-treated cells. Moreover, treatments with EGCG significantly decreased the α-SMA expression. Taken together, these findings revealed that autophagic regulation involved in the action of EGCG against TGF-β1-induced transformation of Tenon's fibroblasts. Through increasing intracellular autophagy, EGCG could be a potential anti-fibrotic reagent for preventing subconjunctival fibrosis after glaucoma filtration surgery.
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Affiliation(s)
- Yu Lin Zhang
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China; Shantou University Medical College, Shantou, China
| | - Yu Qiao Zhang
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China; Shantou University Medical College, Shantou, China
| | - Hong Liang Lin
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China; Shantou University Medical College, Shantou, China
| | - Yong Jie Qin
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China
| | - Jin Zeng
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan Lei Chen
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China
| | - Yong Yi Niu
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China
| | - Chi Pui Pang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Wai Kit Chu
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Hong Yang Zhang
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences. Guangzhou, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China.
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Yokota T, McCourt J, Ma F, Ren S, Li S, Kim TH, Kurmangaliyev YZ, Nasiri R, Ahadian S, Nguyen T, Tan XHM, Zhou Y, Wu R, Rodriguez A, Cohn W, Wang Y, Whitelegge J, Ryazantsev S, Khademhosseini A, Teitell MA, Chiou PY, Birk DE, Rowat AC, Crosbie RH, Pellegrini M, Seldin M, Lusis AJ, Deb A. Type V Collagen in Scar Tissue Regulates the Size of Scar after Heart Injury. Cell 2020; 182:545-562.e23. [PMID: 32621799 PMCID: PMC7415659 DOI: 10.1016/j.cell.2020.06.030] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 03/17/2020] [Accepted: 06/18/2020] [Indexed: 12/19/2022]
Abstract
Scar tissue size following myocardial infarction is an independent predictor of cardiovascular outcomes, yet little is known about factors regulating scar size. We demonstrate that collagen V, a minor constituent of heart scars, regulates the size of heart scars after ischemic injury. Depletion of collagen V led to a paradoxical increase in post-infarction scar size with worsening of heart function. A systems genetics approach across 100 in-bred strains of mice demonstrated that collagen V is a critical driver of postinjury heart function. We show that collagen V deficiency alters the mechanical properties of scar tissue, and altered reciprocal feedback between matrix and cells induces expression of mechanosensitive integrins that drive fibroblast activation and increase scar size. Cilengitide, an inhibitor of specific integrins, rescues the phenotype of increased post-injury scarring in collagen-V-deficient mice. These observations demonstrate that collagen V regulates scar size in an integrin-dependent manner.
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Affiliation(s)
- Tomohiro Yokota
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Cardiovascular Theme, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Jackie McCourt
- Department of Integrative Biology and Physiology, University of California, CA 90095, USA
| | - Feiyang Ma
- Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA
| | - Shuxun Ren
- Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; Department of Anesthesiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Shen Li
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Cardiovascular Theme, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Tae-Hyung Kim
- Department of Integrative Biology and Physiology, University of California, CA 90095, USA
| | - Yerbol Z Kurmangaliyev
- Department of Biological Chemistry, David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Rohollah Nasiri
- California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA; Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Department of Mechanical Engineering, Sharif University of Technology, Tehran 11365-11155, Iran
| | - Samad Ahadian
- California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA; Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, CA 90024, USA
| | - Thang Nguyen
- Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA
| | - Xing Haw Marvin Tan
- California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA; Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, CA 90095, USA
| | - Yonggang Zhou
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Cardiovascular Theme, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Rimao Wu
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Cardiovascular Theme, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Abraham Rodriguez
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Cardiovascular Theme, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Whitaker Cohn
- Passarow Mass Spectrometry Laboratory, Semel Institute for Neuroscience and Behaviour, David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Yibin Wang
- Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; Department of Anesthesiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Julian Whitelegge
- Passarow Mass Spectrometry Laboratory, Semel Institute for Neuroscience and Behaviour, David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Sergey Ryazantsev
- California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA
| | - Ali Khademhosseini
- California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA; Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, CA 90024, USA; Department of Chemical Engineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Michael A Teitell
- Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095, USA
| | - Pei-Yu Chiou
- California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA; Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA; Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, CA 90095, USA
| | - David E Birk
- University of South Florida College of Medicine, Tampa, FL 33612, USA
| | - Amy C Rowat
- Department of Integrative Biology and Physiology, University of California, CA 90095, USA; Department of Bioengineering, School of Engineering, University of California, Los Angeles, CA 90095, USA
| | - Rachelle H Crosbie
- Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; Department of Integrative Biology and Physiology, University of California, CA 90095, USA
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA
| | - Marcus Seldin
- Department of Biological Chemistry and Center for Epigenetics and Metabolism, University of California, Irvine, CA 92697, USA
| | - Aldons J Lusis
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Genetics, David Geffen School of Medicine, Los Angeles, CA 90095, USA
| | - Arjun Deb
- Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Cardiovascular Theme, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Molecular, Cell and Developmental Biology, College of Letters and Sciences, University of California, Los Angeles, CA 90095, USA; Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, CA 90095, USA; California Nanosystems Institute, University of California, Los Angeles, CA 90095, USA.
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Seo BR, Chen X, Ling L, Song YH, Shimpi AA, Choi S, Gonzalez J, Sapudom J, Wang K, Andresen Eguiluz RC, Gourdon D, Shenoy VB, Fischbach C. Collagen microarchitecture mechanically controls myofibroblast differentiation. Proc Natl Acad Sci U S A 2020; 117:11387-11398. [PMID: 32385149 PMCID: PMC7260976 DOI: 10.1073/pnas.1919394117] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Altered microarchitecture of collagen type I is a hallmark of wound healing and cancer that is commonly attributed to myofibroblasts. However, it remains unknown which effect collagen microarchitecture has on myofibroblast differentiation. Here, we combined experimental and computational approaches to investigate the hypothesis that the microarchitecture of fibrillar collagen networks mechanically regulates myofibroblast differentiation of adipose stromal cells (ASCs) independent of bulk stiffness. Collagen gels with controlled fiber thickness and pore size were microfabricated by adjusting the gelation temperature while keeping their concentration constant. Rheological characterization and simulation data indicated that networks with thicker fibers and larger pores exhibited increased strain-stiffening relative to networks with thinner fibers and smaller pores. Accordingly, ASCs cultured in scaffolds with thicker fibers were more contractile, expressed myofibroblast markers, and deposited more extended fibronectin fibers. Consistent with elevated myofibroblast differentiation, ASCs in scaffolds with thicker fibers exhibited a more proangiogenic phenotype that promoted endothelial sprouting in a contractility-dependent manner. Our findings suggest that changes of collagen microarchitecture regulate myofibroblast differentiation and fibrosis independent of collagen quantity and bulk stiffness by locally modulating cellular mechanosignaling. These findings have implications for regenerative medicine and anticancer treatments.
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Affiliation(s)
- Bo Ri Seo
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
| | - Xingyu Chen
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA 19104
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104
| | - Lu Ling
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Young Hye Song
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Adrian A Shimpi
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Siyoung Choi
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Jacqueline Gonzalez
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
| | - Jiranuwat Sapudom
- Biophysical Chemistry, Faculty of Life Sciences, Leipzig University, 04103 Leipzig, Germany
| | - Karin Wang
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
| | | | - Delphine Gourdon
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
- Department of Physics, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Vivek B Shenoy
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA 19104
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104
| | - Claudia Fischbach
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853;
- Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY 14853
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