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Luo L, Lin J, Chen S, Ni J, Peng H, Shen F, Huang Z. Rosmarinic acid alleviates toosendanin-induced liver injury through restoration of autophagic flux and lysosomal function by activating JAK2/STAT3/CTSC pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118196. [PMID: 38631488 DOI: 10.1016/j.jep.2024.118196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/03/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rosmarinic acid (RA), a natural polyphenol abundant in numerous herbal remedies, has been attracting growing interest owing to its exceptional ability to protect the liver. Toosendanin (TSN), a prominent bioactive compound derived from Melia toosendan Siebold & Zucc., boasts diverse pharmacological properties. Nevertheless, TSN possesses remarkable hepatotoxicity. Intriguingly, the potential of RA to counteract TSN-induced liver damage and its probable mechanisms remain unexplored. AIM OF THE STUDY This study is aimed at exploring whether RA can alleviate TSN-induced liver injury and the potential mechanisms involved autophagy. MATERIALS AND METHODS CCK-8 and LDH leakage rate assay were used to evaluate cytotoxicity. Balb/c mice were intraperitoneally administered TSN (20 mg/kg) for 24 h after pretreatment with RA (0, 40, 80 mg/kg) by gavage for 5 days. The autophagic proteins P62 and LC3B expressions were detected using western blot and immunohistochemistry. RFP-GFP-LC3B and transmission electron microscopy were applied to observe the accumulation levels of autophagosomes and autolysosomes. LysoTracker Red and DQ-BSA staining were used to evaluate the lysosomal acidity and degradation ability respectively. Western blot, immunohistochemistry and immunofluorescence staining were employed to measure the expressions of JAK2/STAT3/CTSC pathway proteins. Dual-luciferase reporter gene was used to measure the transcriptional activity of CTSC and RT-PCR was used to detect its mRNA level. H&E staining and serum biochemical assay were employed to determine the degree of damage to the liver. RESULTS TSN-induced damage to hepatocytes and livers was significantly alleviated by RA. RA markedly diminished the autophagic flux blockade and lysosomal dysfunction caused by TSN. Mechanically, RA alleviated TSN-induced down-regulation of CTSC by activating JAK2/STAT3 signaling pathway. CONCLUSION RA could protect against TSN-induced liver injury by activating the JAK2/STAT3/CTSC pathway-mediated autophagy and lysosomal function.
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Affiliation(s)
- Li Luo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jinxian Lin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Sixin Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jiajie Ni
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Hongjie Peng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Feihai Shen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Zhiying Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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Fu B, Shen J, Zou X, Sun N, Zhang Z, Liu Z, Zeng C, Liu H, Huang W. Matrix stiffening promotes chondrocyte senescence and the osteoarthritis development through downregulating HDAC3. Bone Res 2024; 12:32. [PMID: 38789434 PMCID: PMC11126418 DOI: 10.1038/s41413-024-00333-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/13/2024] [Accepted: 04/01/2024] [Indexed: 05/26/2024] Open
Abstract
Extracellular matrix (ECM) stiffening is a typical characteristic of cartilage aging, which is a quintessential feature of knee osteoarthritis (KOA). However, little is known about how ECM stiffening affects chondrocytes and other molecules downstream. This study mimicked the physiological and pathological stiffness of human cartilage using polydimethylsiloxane (PDMS) substrates. It demonstrated that epigenetic Parkin regulation by histone deacetylase 3 (HDAC3) represents a new mechanosensitive mechanism by which the stiffness matrix affected chondrocyte physiology. We found that ECM stiffening accelerated cultured chondrocyte senescence in vitro, while the stiffness ECM downregulated HDAC3, prompting Parkin acetylation to activate excessive mitophagy and accelerating chondrocyte senescence and osteoarthritis (OA) in mice. Contrarily, intra-articular injection with an HDAC3-expressing adeno-associated virus restored the young phenotype of the aged chondrocytes stimulated by ECM stiffening and alleviated OA in mice. The findings indicated that changes in the mechanical ECM properties initiated pathogenic mechanotransduction signals, promoted the Parkin acetylation and hyperactivated mitophagy, and damaged chondrocyte health. These results may provide new insights into chondrocyte regulation by the mechanical properties of ECM, suggesting that the modification of the physical ECM properties may be a potential OA treatment strategy.
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Affiliation(s)
- Bowen Fu
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510145, Guangdong, China
- Department of Foot and Ankle Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China
| | - Jianlin Shen
- Department of Orthopedics, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
- Central Laboratory, Affiliated Hospital of Putian University, Putian, 351100, Fujian, China
| | - Xuenong Zou
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Department of Spinal Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Nian Sun
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510145, Guangdong, China
- Department of Foot and Ankle Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China
| | - Ze Zhang
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Guangzhou Blood Center, Guangzhou, 510095, Guangdong, China
| | - Zengping Liu
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Guangzhou Blood Center, Guangzhou, 510095, Guangdong, China
| | - Canjun Zeng
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510145, Guangdong, China
- Department of Foot and Ankle Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China
| | - Huan Liu
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Wenhua Huang
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China.
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510145, Guangdong, China.
- Department of Foot and Ankle Surgery, Center for Orthopedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, 510630, Guangdong, China.
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3
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Lloyd SM, He Y. Exploring Extracellular Matrix Crosslinking as a Therapeutic Approach to Fibrosis. Cells 2024; 13:438. [PMID: 38474402 DOI: 10.3390/cells13050438] [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: 02/05/2024] [Revised: 02/26/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
The extracellular matrix (ECM) provides structural support for tissues and regulatory signals for resident cells. ECM requires a careful balance between protein accumulation and degradation for homeostasis. Disruption of this balance can lead to pathological processes such as fibrosis in organs across the body. Post-translational crosslinking modifications to ECM proteins such as collagens alter ECM structure and function. Dysregulation of crosslinking enzymes as well as changes in crosslinking composition are prevalent in fibrosis. Because of the crucial roles these ECM crosslinking pathways play in disease, the enzymes that govern crosslinking events are being explored as therapeutic targets for fibrosis. Here, we review in depth the molecular mechanisms underlying ECM crosslinking, how ECM crosslinking contributes to fibrosis, and the therapeutic strategies being explored to target ECM crosslinking in fibrosis to restore normal tissue structure and function.
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Affiliation(s)
- Sarah M Lloyd
- AbbVie Inc., 1 North Waukegan Rd., North Chicago, IL 60064, USA
| | - Yupeng He
- AbbVie Inc., 1 North Waukegan Rd., North Chicago, IL 60064, USA
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4
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Fan W, Adebowale K, Váncza L, Li Y, Rabbi MF, Kunimoto K, Chen D, Mozes G, Chiu DKC, Li Y, Tao J, Wei Y, Adeniji N, Brunsing RL, Dhanasekaran R, Singhi A, Geller D, Lo SH, Hodgson L, Engleman EG, Charville GW, Charu V, Monga SP, Kim T, Wells RG, Chaudhuri O, Török NJ. Matrix viscoelasticity promotes liver cancer progression in the pre-cirrhotic liver. Nature 2024; 626:635-642. [PMID: 38297127 PMCID: PMC10866704 DOI: 10.1038/s41586-023-06991-9] [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: 09/21/2022] [Accepted: 12/18/2023] [Indexed: 02/02/2024]
Abstract
Type 2 diabetes mellitus is a major risk factor for hepatocellular carcinoma (HCC). Changes in extracellular matrix (ECM) mechanics contribute to cancer development1,2, and increased stiffness is known to promote HCC progression in cirrhotic conditions3,4. Type 2 diabetes mellitus is characterized by an accumulation of advanced glycation end-products (AGEs) in the ECM; however, how this affects HCC in non-cirrhotic conditions is unclear. Here we find that, in patients and animal models, AGEs promote changes in collagen architecture and enhance ECM viscoelasticity, with greater viscous dissipation and faster stress relaxation, but not changes in stiffness. High AGEs and viscoelasticity combined with oncogenic β-catenin signalling promote HCC induction, whereas inhibiting AGE production, reconstituting the AGE clearance receptor AGER1 or breaking AGE-mediated collagen cross-links reduces viscoelasticity and HCC growth. Matrix analysis and computational modelling demonstrate that lower interconnectivity of AGE-bundled collagen matrix, marked by shorter fibre length and greater heterogeneity, enhances viscoelasticity. Mechanistically, animal studies and 3D cell cultures show that enhanced viscoelasticity promotes HCC cell proliferation and invasion through an integrin-β1-tensin-1-YAP mechanotransductive pathway. These results reveal that AGE-mediated structural changes enhance ECM viscoelasticity, and that viscoelasticity can promote cancer progression in vivo, independent of stiffness.
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Affiliation(s)
- Weiguo Fan
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Kolade Adebowale
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
- Chemistry, Engineering and Medicine for Human Health (ChEM-H), Stanford University, Stanford, CA, USA
| | - Lóránd Váncza
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Yuan Li
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Md Foysal Rabbi
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - Koshi Kunimoto
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Dongning Chen
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Gergely Mozes
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - David Kung-Chun Chiu
- Department of Pathology, Stanford University, Stanford, CA, USA
- Division of Immunology, Stanford University, Stanford, CA, USA
| | - Yisi Li
- Department of Automation, Tsinghua University, Beijing, China
| | - Junyan Tao
- Pittsburgh Liver Research Center, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yi Wei
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Nia Adeniji
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Ryan L Brunsing
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Renumathy Dhanasekaran
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA
- VA, Palo Alto, CA, USA
| | - Aatur Singhi
- Pittsburgh Liver Research Center, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - David Geller
- Pittsburgh Liver Research Center, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Su Hao Lo
- Department of Biochemistry and Molecular Medicine, University of California at Davis, Sacramento, CA, USA
| | - Louis Hodgson
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, New York, NY, USA
| | - Edgar G Engleman
- Department of Pathology, Stanford University, Stanford, CA, USA
- Division of Immunology, Stanford University, Stanford, CA, USA
| | | | - Vivek Charu
- Department of Pathology, Stanford University, Stanford, CA, USA
- Quantitative Sciences Unit, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Satdarshan P Monga
- Pittsburgh Liver Research Center, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Taeyoon Kim
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
- Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Rebecca G Wells
- Departments of Medicine and Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Ovijit Chaudhuri
- Chemistry, Engineering and Medicine for Human Health (ChEM-H), Stanford University, Stanford, CA, USA
- Department of Mechanical Engineering, Stanford University, Stanford, CA, USA
| | - Natalie J Török
- Gastroenterology and Hepatology, Stanford University, Stanford, CA, USA.
- VA, Palo Alto, CA, USA.
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Boo YC. Therapeutic Potential and Mechanisms of Rosmarinic Acid and the Extracts of Lamiaceae Plants for the Treatment of Fibrosis of Various Organs. Antioxidants (Basel) 2024; 13:146. [PMID: 38397744 PMCID: PMC10886237 DOI: 10.3390/antiox13020146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Fibrosis, which causes structural hardening and functional degeneration in various organs, is characterized by the excessive production and accumulation of connective tissue containing collagen, alpha-smooth muscle actin (α-SMA), etc. In traditional medicine, extracts of medicinal plants or herbal prescriptions have been used to treat various fibrotic diseases. The purpose of this narrative review is to discuss the antifibrotic effects of rosmarinic acid (RA) and plant extracts that contain RA, as observed in various experimental models. RA, as well as the extracts of Glechoma hederacea, Melissa officinalis, Elsholtzia ciliata, Lycopus lucidus, Ocimum basilicum, Prunella vulgaris, Salvia rosmarinus (Rosmarinus officinalis), Salvia miltiorrhiza, and Perilla frutescens, have been shown to attenuate fibrosis of the liver, kidneys, heart, lungs, and abdomen in experimental animal models. Their antifibrotic effects were associated with the attenuation of oxidative stress, inflammation, cell activation, epithelial-mesenchymal transition, and fibrogenic gene expression. RA treatment activated peroxisomal proliferator-activated receptor gamma (PPARγ), 5' AMP-activated protein kinase (AMPK), and nuclear factor erythroid 2-related factor 2 (NRF2) while suppressing the transforming growth factor beta (TGF-β) and Wnt signaling pathways. Interestingly, most plants that are reported to contain RA and exhibit antifibrotic activity belong to the family Lamiaceae. This suggests that RA is an active ingredient for the antifibrotic effect of Lamiaceae plants and that these plants are a useful source of RA. In conclusion, accumulating scientific evidence supports the effectiveness of RA and Lamiaceae plant extracts in alleviating fibrosis and maintaining the structural architecture and normal functions of various organs under pathological conditions.
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Affiliation(s)
- Yong Chool Boo
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea;
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, The Graduate School, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu 41944, Republic of Korea
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Takeda K, Sakai-Sakasai A, Kajinami K, Takeuchi M. A Novel Approach: Investigating the Intracellular Clearance Mechanism of Glyceraldehyde-Derived Advanced Glycation End-Products Using the Artificial Checkpoint Kinase 1 d270KD Mutant as a Substrate Model. Cells 2023; 12:2838. [PMID: 38132156 PMCID: PMC10741459 DOI: 10.3390/cells12242838] [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: 11/14/2023] [Revised: 12/04/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Advanced glycation end-products (AGEs), formed through glyceraldehyde (GA) as an intermediate in non-enzymatic reactions with intracellular proteins, are cytotoxic and have been implicated in the pathogenesis of various diseases. Despite their significance, the mechanisms underlying the degradation of GA-derived AGEs (GA-AGEs) remain unclear. In the present study, we found that N-terminal checkpoint kinase 1 cleavage products (CHK1-CPs) and their mimic protein, d270WT, were degraded intracellularly post-GA exposure. Notably, a kinase-dead d270WT variant (d270KD) underwent rapid GA-induced degradation, primarily via the ubiquitin-proteasome pathway. The high-molecular-weight complexes formed by the GA stimulation of d270KD were abundant in the RIPA-insoluble fraction, which also contained high levels of GA-AGEs. Immunoprecipitation experiments indicated that the high-molecular-weight complexes of d270KD were modified by GA-AGEs and that p62/SQSTM1 was one of its components. The knockdown of p62 or treatment with chloroquine reduced the amount of high-molecular-weight complexes in the RIPA-insoluble fraction, indicating its involvement in the formation of GA-AGE aggregates. The present results suggest that the ubiquitin-proteasome pathway and p62 play a role in the degradation and aggregation of intracellular GA-AGEs. This study provides novel insights into the mechanisms underlying GA-AGE metabolism and may lead to the development of novel therapeutic strategies for diseases associated with the accumulation of GA-AGEs.
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Affiliation(s)
- Kenji Takeda
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan;
| | - Akiko Sakai-Sakasai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
| | - Kouji Kajinami
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan;
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
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Kollet O, Sagi I. Glycation-driven matrix crosslinking in cirrhosis. Nat Biomed Eng 2023; 7:1343-1345. [PMID: 37919368 DOI: 10.1038/s41551-023-01119-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Affiliation(s)
- Orit Kollet
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Irit Sagi
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel.
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Ediga HH, Hester P, Yepuri A, Reddy GB, Madala SK. Nε-Carboxymethyl-Lysine Modification of Extracellular Matrix Proteins Augments Fibroblast Activation. Int J Mol Sci 2023; 24:15811. [PMID: 37958795 PMCID: PMC10650592 DOI: 10.3390/ijms242115811] [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: 09/15/2023] [Revised: 10/24/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
The extracellular matrix (ECM) is a dynamic complex protein network that provides structural integrity and plays an active role in shaping fibroblast behavior both in health and disease. Despite its essential functions, the impact of age-associated post-translational modifications on ECM-driven fibroblast activities such as proliferation, survival, fibroblast-to-myofibroblast transformation (FMT), and extracellular matrix production remains largely unknown. Nε-carboxymethyl-lysine (CML) is one of the well-characterized advanced glycation end-products (AGEs) that can occur on lysine residues within ECM proteins through non-enzymatic glycation. In this study, we determined the accumulation and the effects of the CML-modified ECM (CML-ECM) on fibroblast activation. Immunostainings and immunoblot analysis demonstrated significant increases in CML-AGE content in idiopathic pulmonary fibrosis (IPF) compared to age-matched healthy lungs. Gene expression analysis and fibroblast activation assays collectively implicate the ECM as a negative regulator of fibroblast activation. Notably, the CML modification of the ECM resulted in a significant decrease in its anti-fibrotic effects including proliferation, FMT, apoptosis, and ECM production. Together, the results of this study revealed an unexplored pathological role played by the CML-ECM on fibroblast activation, which has wide implications in IPF and other fibrotic diseases.
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Affiliation(s)
- Harshavardhana H. Ediga
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45267-0564, USA (P.H.)
- Department of Biochemistry, ICMR-National Institute of Nutrition, Hyderabad 500007, India;
| | - Patrick Hester
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45267-0564, USA (P.H.)
| | - Adithi Yepuri
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45267-0564, USA (P.H.)
| | | | - Satish K. Madala
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH 45267-0564, USA (P.H.)
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Zhao P, Sun T, Lyu C, Liang K, Du Y. Cell mediated ECM-degradation as an emerging tool for anti-fibrotic strategy. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:29. [PMID: 37653282 PMCID: PMC10471565 DOI: 10.1186/s13619-023-00172-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 07/10/2023] [Indexed: 09/02/2023]
Abstract
Investigation into the role of cells with respect to extracellular matrix (ECM) remodeling is still in its infancy. Particularly, ECM degradation is an indispensable process during the recovery from fibrosis. Cells with ECM degradation ability due to the secretion of various matrix metalloproteinases (MMPs) have emerged as novel contributors to the treatment of fibrotic diseases. In this review, we focus on the ECM degradation ability of cells associated with the repertoire of MMPs that facilitate the attenuation of fibrosis through the inhibition of ECM deposition. Besides, innovative approaches to engineering and characterizing cells with degradation ability, as well as elucidating the mechanism of the ECM degradation, are also illustrated. Studies conducted to date on the use of cell-based degradation for therapeutic purposes to combat fibrosis are summarized. Finally, we discuss the therapeutic potential of cells with high degradation ability, hoping to bridge the gap between benchside research and bedside applications in treating fibrotic diseases.
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Affiliation(s)
- Peng Zhao
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Tian Sun
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Cheng Lyu
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Kaini Liang
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yanan Du
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China.
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