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Ni Y, Zhu D, Chen C, Wang F, Miu Y, Zhang W. (+)-Catechins Play a Protective Role in Diabetic Kidney Disease by Alleviating EMT through Multiple Pathways. Mol Nutr Food Res 2024:e2400387. [PMID: 39121356 DOI: 10.1002/mnfr.202400387] [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: 05/23/2024] [Revised: 06/30/2024] [Indexed: 08/11/2024]
Abstract
SCOPE Diabetic nephropathy (DN), a complication of diabetes mellitus, is becoming a significant global health concern, with no complete cure currently available. Tea is regarded as an essential component of a balanced diet and contains (+)-Catechin (CE), which exert a range of pharmacological effects. Consequently, CE may be a potential treatment for DN. The objective of this study is to examine the protective effects and underlying mechanisms of CE on DN, with a particular focus on the epithelial-mesenchymal transition (EMT) process, which plays a pivotal role in regulating DN. METHODS AND RESULTS In this study db/db mice are treated with catechins. The results demonstrate that CE reduces obesity and hyperglycemia, improves renal dysfunction and morphological changes in diabetic mice, and inhibits the development of DN through the RAGE/NF-κB signaling pathway. Among them differentially expressed messenger RNA (mRNA) results, those related to EMT, including Cav1, grem2, macrod2, and kap, are identified. To further validate the results, the same experiments are performed on HK-2 cells. CONCLUSIONS The research results offer novel perspectives by emphasizing the anti-inflammatory properties of CE and their potential role in mitigating DN through the regulation of EMT-related genes such as RAGE, Cav1, grem2, macrod2, and kap.
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Affiliation(s)
- Ying Ni
- Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical, Science, Beijing Normal University, Beijing, 100875, China
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
| | - Dina Zhu
- Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical, Science, Beijing Normal University, Beijing, 100875, China
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
| | - Chao Chen
- Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical, Science, Beijing Normal University, Beijing, 100875, China
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
| | - Fan Wang
- Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical, Science, Beijing Normal University, Beijing, 100875, China
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
| | - Yanyan Miu
- Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical, Science, Beijing Normal University, Beijing, 100875, China
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
| | - Wensheng Zhang
- Engineering Research Center of Natural Medicine, Ministry of Education, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical, Science, Beijing Normal University, Beijing, 100875, China
- Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai, 519087, China
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Delrue C, Speeckaert R, Delanghe JR, Speeckaert MM. Breath of fresh air: Investigating the link between AGEs, sRAGE, and lung diseases. VITAMINS AND HORMONES 2024; 125:311-365. [PMID: 38997169 DOI: 10.1016/bs.vh.2024.01.003] [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: 07/14/2024]
Abstract
Advanced glycation end products (AGEs) are compounds formed via non-enzymatic reactions between reducing sugars and amino acids or proteins. AGEs can accumulate in various tissues and organs and have been implicated in the development and progression of various diseases, including lung diseases. The receptor of advanced glycation end products (RAGE) is a receptor that can bind to advanced AGEs and induce several cellular processes such as inflammation and oxidative stress. Several studies have shown that both AGEs and RAGE play a role in the pathogenesis of lung diseases, such as chronic obstructive pulmonary disease, asthma, idiopathic pulmonary fibrosis, cystic fibrosis, and acute lung injury. Moreover, the soluble form of the receptor for advanced glycation end products (sRAGE) has demonstrated its ability to function as a decoy receptor, possessing beneficial characteristics such as anti-inflammatory, antioxidant, and anti-fibrotic properties. These qualities make it an encouraging focus for therapeutic intervention in managing pulmonary disorders. This review highlights the current understanding of the roles of AGEs and (s)RAGE in pulmonary diseases and their potential as biomarkers and therapeutic targets for preventing and treating these pathologies.
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Affiliation(s)
- Charlotte Delrue
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | | | - Joris R Delanghe
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Marijn M Speeckaert
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium; Research Foundation-Flanders (FWO), Brussels, Belgium.
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3
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Zhang Z, Deng X, Gu W, Jiao Y, Su C, Liu H, Ma W, Zhang H, Xiang R, Wang D, Wang Y, Chunguo W, Meng F. Jianghu decoction and its active component polydatin inhibit inflammation and fibrotic lesions in the lungs of ILD mice via the AMPK signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:117003. [PMID: 37543150 DOI: 10.1016/j.jep.2023.117003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/29/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Recently, interstitial lung disease (ILD) morbidity and mortality have been increasing with insidious epidemiological characteristics. Jianghu decoction (JH) is an effective Chinese medicine for ILD. AIM OF THE STUDY We aimed to reveal the material basis and mechanism of action of JH in the treatment of ILD. MATERIALS AND METHODS In this study, an ILD mouse model was constructed with bleomycin. HE staining, transcriptome analysis, parallel reaction monitoring-mass spectrometry (PRM-MS), UPLC‒MS, and western blotting assays were conducted. RESULTS HE staining results showed that JH effectively reduced inflammation and fibrosis foci in the lungs of the ILD model. Furthermore, transcriptome analysis revealed that JH regulates a set of biological signaling pathways related to immune inflammation and fibrosis. PRM-MS combined with western blotting was applied to detect inflammation and fibrosis involving proteins in lung tissue. JH effectively reversed the aberrant expression of HMGB1, RAGE, SEPTIN4, ACTA2, and ITGAV proteins in the model group. AMPK was identified as the core upstream regulatory protein for JH-mediated ILD regulation. In addition, UHPLC‒MS technology was applied to determine the active ingredients of JH. A total of 80 components were identified from JH, and polydatin (PD) was identified as the active ingredient that effectively alleviated lung fibrosis and inflammatory injury in ILD mice. To illustrate the molecular regulatory network of JH and PD in alleviating lung fibrosis and inflammatory injury, we also examined inflammation and fibrosis-related molecules downstream of the AMPK pathway with RT‒qPCR and western blotting. CONCLUSIONS The results showed that both JH and its active component PD exert synergistic inhibition on pulmonary fibrosis and inflammation. Specifically, the AMPK/PGC1α/PPARγ signaling pathway was activated, and the AMPK/HMGB1/RAGE signaling pathway was inhibited in ILD lungs responding to JH or PD administration.
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Affiliation(s)
- Zhengju Zhang
- Dongfang Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Xinqi Deng
- Institute of Chinese Materia Medica China Academy of Chinese Medical Sciences, Beijing, China
| | - Wen Gu
- Beijing Hospital of Traditional Chinese Medicine of Capital Medical University, Beijing, China
| | - Yang Jiao
- Dongfang Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Canyu Su
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Liu
- Dongfang Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Weiguo Ma
- Dongfang Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Honghong Zhang
- Shunyi Hospital, Beijing Traditional Chinese Medicine Hospital, Beijing, China
| | - Ruiyang Xiang
- Yongledian Health Service Center of Tongzhou District, Beijing, China
| | - Dali Wang
- Yanshan Community Health Service Center, Beijing, China
| | - Yanan Wang
- Beijing Hospital of Traditional Chinese Medicine of Capital Medical University, Beijing, China.
| | - Wang Chunguo
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Fengxian Meng
- Dongfang Hospital of Beijing University of Traditional Chinese Medicine, Beijing, China.
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4
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Ezzo M, Hinz B. Novel approaches to target fibroblast mechanotransduction in fibroproliferative diseases. Pharmacol Ther 2023; 250:108528. [PMID: 37708995 DOI: 10.1016/j.pharmthera.2023.108528] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/09/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023]
Abstract
The ability of cells to sense and respond to changes in mechanical environment is vital in conditions of organ injury when the architecture of normal tissues is disturbed or lost. Among the various cellular players that respond to injury, fibroblasts take center stage in re-establishing tissue integrity by secreting and organizing extracellular matrix into stabilizing scar tissue. Activation, activity, survival, and death of scar-forming fibroblasts are tightly controlled by mechanical environment and proper mechanotransduction ensures that fibroblast activities cease after completion of the tissue repair process. Conversely, dysregulated mechanotransduction often results in fibroblast over-activation or persistence beyond the state of normal repair. The resulting pathological accumulation of extracellular matrix is called fibrosis, a condition that has been associated with over 40% of all deaths in the industrialized countries. Consequently, elements in fibroblast mechanotransduction are scrutinized for their suitability as anti-fibrotic therapeutic targets. We review the current knowledge on mechanically relevant factors in the fibroblast extracellular environment, cell-matrix and cell-cell adhesion structures, stretch-activated membrane channels, stress-regulated cytoskeletal structures, and co-transcription factors. We critically discuss the targetability of these elements in therapeutic approaches and their progress in pre-clinical and/or clinical trials to treat organ fibrosis.
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Affiliation(s)
- Maya Ezzo
- Keenan Research Institute for Biomedical Science of the St. Michael's Hospital, and Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Boris Hinz
- Keenan Research Institute for Biomedical Science of the St. Michael's Hospital, and Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
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5
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Gkavogiannakis NA, Tsoporis JN, Drosatos IA, Tsirebolos G, Izhar S, Sakadakis E, Triantafyllis AS, Parker TG, Kalogiros LA, Leong-Poi H, Rallidis LS, Rizos I. Emergent Inflammatory Markers and Echocardiographic Indices in Patients with Bronchial Asthma. Biomolecules 2023; 13:955. [PMID: 37371535 DOI: 10.3390/biom13060955] [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: 05/17/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Asthma is a heterogeneous disease, characterized by chronic inflammation and oxidative stress of the airways. Several inflammatory pathways including activation of the receptor for advanced glycation end products (RAGE) have been described in the course of the disease. DJ-1 is a redox-sensitive protein with multifaceted roles in mast cell homeostasis and an emerging role in the pathogenesis of asthma. Moreover, cardiac function abnormalities have been described via echocardiography in patients with asthma. The main aim of this study was to investigate the plasma levels of RAGE, its ligands and DJ-1 in asthmatic patients pre- and post-treatment along with echocardiographic indices of cardiovascular function. The study population was divided into two groups. Group A included 13 patients with newly diagnosed bronchial asthma who were free of treatment for at least two weeks and Group B included 12 patients without asthma. An echocardiography examination was performed on all patients. The plasma levels of RAGE, its ligands (AGEs, S100A12, S100B, S100A8/A9), the interleukins (IL-6, IL-1β) and DJ-1 were measured. No differences were noted among the two groups for baseline characteristics and echocardiographic indices of cardiac function. In Group A, 31% suffered from mild asthma, 54% from moderate asthma and 15% from severe asthma. Plasma levels of IL-6, AGEs and AGE/RAGE ratio were increased and those of S100A12 and DJ-1 were decreased in asthmatics. Pharmacotherapy with corticosteroids/β2-agonists decreased IL-6, and AGEs, and increased DJ-1. In search of novel approaches in diagnosing and treating patients with asthma, S100A12, ratio AGE/sRAGE, and DJ-1 in addition to IL-6 may prove to be useful tools.
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Affiliation(s)
- Nikolaos A Gkavogiannakis
- Allergy Unit "D. Kalogeromitros", Attikon University Hospital, 124 62 Athens, Greece
- Allergy & Clinical Immunology Department, 401 General Military Hospital of Athens, 115 27 Athens, Greece
| | - James N Tsoporis
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Ioannis-Alexandros Drosatos
- Second Department of Cardiology, Attikon University Hospital, 124 62 Athens, Greece
- Department of Cardiology, 414 Military Hospital, P. Penteli, 152 36 Athens, Greece
| | - George Tsirebolos
- Second Department of Cardiology, Attikon University Hospital, 124 62 Athens, Greece
- Department of Cardiology, 401 General Military Hospital of Athens, 115 27 Athens, Greece
| | - Shehla Izhar
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, ON M5B 1W8, Canada
| | | | | | - Thomas G Parker
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Lampros A Kalogiros
- Allergy & Clinical Immunology Department, 401 General Military Hospital of Athens, 115 27 Athens, Greece
| | - Howard Leong-Poi
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, University of Toronto, Toronto, ON M5B 1W8, Canada
| | - Loukianos S Rallidis
- Second Department of Cardiology, Attikon University Hospital, 124 62 Athens, Greece
| | - Ioannis Rizos
- Second Department of Cardiology, Attikon University Hospital, 124 62 Athens, Greece
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6
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Cha SR, Jang J, Park SM, Ryu SM, Cho SJ, Yang SR. Cigarette Smoke-Induced Respiratory Response: Insights into Cellular Processes and Biomarkers. Antioxidants (Basel) 2023; 12:1210. [PMID: 37371940 DOI: 10.3390/antiox12061210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Cigarette smoke (CS) poses a significant risk factor for respiratory, vascular, and organ diseases owing to its high content of harmful chemicals and reactive oxygen species (ROS). These substances are known to induce oxidative stress, inflammation, apoptosis, and senescence due to their exposure to environmental pollutants and the presence of oxidative enzymes. The lung is particularly susceptible to oxidative stress. Persistent oxidative stress caused by chronic exposure to CS can lead to respiratory diseases such as chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), and lung cancer. Avoiding exposure to environmental pollutants, like cigarette smoke and air pollution, can help mitigate oxidative stress. A comprehensive understanding of oxidative stress and its impact on the lungs requires future research. This includes identifying strategies for preventing and treating lung diseases as well as investigating the underlying mechanisms behind oxidative stress. Thus, this review aims to investigate the cellular processes induced by CS, specifically inflammation, apoptosis, senescence, and their associated biomarkers. Furthermore, this review will delve into the alveolar response provoked by CS, emphasizing the roles of potential therapeutic target markers and strategies in inflammation and oxidative stress.
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Affiliation(s)
- Sang-Ryul Cha
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
| | - Jimin Jang
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
| | - Sung-Min Park
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
| | - Se Min Ryu
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
| | - Seong-Joon Cho
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
| | - Se-Ran Yang
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Republic of Korea
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7
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Liu J, Jin Z, Wang X, Jakoš T, Zhu J, Yuan Y. RAGE pathways play an important role in regulation of organ fibrosis. Life Sci 2023; 323:121713. [PMID: 37088412 DOI: 10.1016/j.lfs.2023.121713] [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: 02/22/2023] [Revised: 04/09/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Organ fibrosis is a pathological process of fibroblast activation and excessive deposition of extracellular matrix after persistent tissue injury and therefore is a common endpoint of many organ pathologies. Multiple cellular types and soluble mediators, including chemokines, cytokines and non-peptidic factors, are implicated in fibrogenesis and the remodeling of tissue architecture. The molecular basis of the fibrotic process is complex and consists of closely intertwined signaling networks. Research has strived for a better understanding of these pathological mechanisms to potentially reveal novel therapeutic targets for fibrotic diseases. In light of new knowledge, the receptor for advanced glycation end products (RAGE) emerged as an important candidate for the regulation of a wide variety of cellular functions related to fibrosis, including inflammation, cell proliferation, apoptosis, and angiogenesis. RAGE is a pattern recognition receptor that binds a broad range of ligands such as advanced glycation end products, high mobility group box-1, S-100 calcium-binding protein and amyloid beta protein. Although the link between RAGE and fibrosis has been established, the exact mechanisms need be investigated in further studies. The aim of this review is to collect all available information about the intricate function of RAGE and its signaling cascades in the pathogenesis of fibrotic diseases within different organs. In addition, to the major ligands and signaling pathways, we discuss potential strategies for targeting RAGE in fibrosis. We emphasize the functional links between RAGE, inflammation and fibrosis that may guide further studies and the development of improved therapeutic drugs.
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Affiliation(s)
- Jing Liu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University School of Pharmacy, Shanghai 201100, China.
| | - Zhedong Jin
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University School of Pharmacy, Shanghai 201100, China.
| | - Xiaolong Wang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University School of Pharmacy, Shanghai 201100, China.
| | - Tanja Jakoš
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University School of Pharmacy, Shanghai 201100, China.
| | - Jianwei Zhu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University School of Pharmacy, Shanghai 201100, China.
| | - Yunsheng Yuan
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, Shanghai Jiao Tong University School of Pharmacy, Shanghai 201100, China.
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8
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Aversa Z, Atkinson EJ, Carmona EM, White TA, Heeren AA, Jachim SK, Zhang X, Cummings SR, Chiarella SE, Limper AH, LeBrasseur NK. Biomarkers of cellular senescence in idiopathic pulmonary fibrosis. Respir Res 2023; 24:101. [PMID: 37029417 PMCID: PMC10080755 DOI: 10.1186/s12931-023-02403-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/19/2023] [Indexed: 04/09/2023] Open
Abstract
BACKGROUND Cellular senescence is a cell fate in response to diverse forms of age-related damage and stress that has been implicated in the pathogenesis of idiopathic pulmonary fibrosis (IPF). The associations between circulating levels of candidate senescence biomarkers and disease outcomes have not been specifically studied in IPF. In this study we assessed the circulating levels of candidate senescence biomarkers in individuals affected by IPF and controls and evaluated their ability to predict disease outcomes. METHODS We measured the plasma concentrations of 32 proteins associated with senescence in Lung Tissue Research Consortium participants and studied their relationship with the diagnosis of IPF, parameters of pulmonary and physical function, health-related quality of life, mortality, and lung tissue expression of P16, a prototypical marker of cellular senescence. A machine learning approach was used to evaluate the ability of combinatorial biomarker signatures to predict disease outcomes. RESULTS The circulating levels of several senescence biomarkers were significantly elevated in persons affected by IPF compared to controls. A subset of biomarkers accurately classified participants as having or not having the disease and was significantly correlated with measures of pulmonary function, health-related quality of life and, to an extent, physical function. An exploratory analysis revealed senescence biomarkers were also associated with mortality in IPF participants. Finally, the plasma concentrations of several biomarkers were associated with their expression levels in lung tissue as well as the expression of P16. CONCLUSIONS Our results suggest that circulating levels of candidate senescence biomarkers are informative of disease status, pulmonary and physical function, and health-related quality of life. Additional studies are needed to validate the combinatorial biomarkers signatures that emerged using a machine learning approach.
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Affiliation(s)
- Zaira Aversa
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | | | - Eva M Carmona
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Thomas A White
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Amanda A Heeren
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Sarah K Jachim
- Mayo Clinic Graduate School of Biomedical Sciences, Rochester, MN, USA
| | - Xu Zhang
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Steven R Cummings
- Departments of Medicine, Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA
| | | | - Andrew H Limper
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Nathan K LeBrasseur
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
- Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA.
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Abstract
Frozen shoulder is a common debilitating disorder characterized by shoulder pain and progressive loss of shoulder movement. Frozen shoulder is frequently associated with other systemic conditions or occurs following periods of immobilization, and has a protracted clinical course, which can be frustrating for patients as well as health-care professionals. Frozen shoulder is characterized by fibroproliferative tissue fibrosis, whereby fibroblasts, producing predominantly type I and type III collagen, transform into myofibroblasts (a smooth muscle phenotype), which is accompanied by inflammation, neoangiogenesis and neoinnervation, resulting in shoulder capsular fibrotic contractures and the associated clinical stiffness. Diagnosis is heavily based on physical examination and can be difficult depending on the stage of disease or if concomitant shoulder pathology is present. Management consists of physiotherapy, therapeutic modalities such as steroid injections, anti-inflammatory medications, hydrodilation and surgical interventions; however, their effectiveness remains unclear. Facilitating translational science should aid in development of novel therapies to improve outcomes among individuals with this debilitating condition.
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10
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Herrera JA, Dingle L, Montero MA, Venkateswaran RV, Blaikley JF, Lawless C, Schwartz MA. The UIP/IPF fibroblastic focus is a collagen biosynthesis factory embedded in a distinct extracellular matrix. JCI Insight 2022; 7:e156115. [PMID: 35852874 PMCID: PMC9462507 DOI: 10.1172/jci.insight.156115] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 07/07/2022] [Indexed: 11/17/2022] Open
Abstract
Usual interstitial pneumonia (UIP) is a histological pattern characteristic of idiopathic pulmonary fibrosis (IPF). The UIP pattern is patchy with histologically normal lung adjacent to dense fibrotic tissue. At this interface, fibroblastic foci (FF) are present and are sites where myofibroblasts and extracellular matrix (ECM) accumulate. Utilizing laser capture microdissection-coupled mass spectrometry, we interrogated the FF, adjacent mature scar, and adjacent alveoli in 6 fibrotic (UIP/IPF) specimens plus 6 nonfibrotic alveolar specimens as controls. The data were subjected to qualitative and quantitative analysis and histologically validated. We found that the fibrotic alveoli protein signature is defined by immune deregulation as the strongest category. The fibrotic mature scar classified as end-stage fibrosis whereas the FF contained an overabundance of a distinctive ECM compared with the nonfibrotic control. Furthermore, FF were positive for both TGFB1 and TGFB3, whereas the aberrant basaloid cell lining of FF was predominantly positive for TGFB2. In conclusion, spatial proteomics demonstrated distinct protein compositions in the histologically defined regions of UIP/IPF tissue. These data revealed that FF are the main site of collagen biosynthesis and that the adjacent alveoli are abnormal. This essential information will inform future mechanistic studies on fibrosis progression.
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Affiliation(s)
| | - Lewis Dingle
- Blond McIndoe Laboratories, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - M. Angeles Montero
- Department of Histopathology, Manchester University National Health Service Foundation Trust, Manchester, United Kingdom
| | - Rajamiyer V. Venkateswaran
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
- Department of Transplant, Manchester University National Health Service Foundation Trust, Manchester, United Kingdom
| | - John F. Blaikley
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
- Department of Transplant, Manchester University National Health Service Foundation Trust, Manchester, United Kingdom
| | | | - Martin A. Schwartz
- The Wellcome Centre for Cell-Matrix Research and
- Yale Cardiovascular Research Center and
- Departments of Internal Medicine (Cardiology) and Cell Biology, Yale School of Medicine, New Haven, Connecticut, USA
- Department of Biomedical Engineering, Yale School of Engineering & Applied Science, New Haven, Connecticut, USA
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11
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Dong H, Zhang Y, Huang Y, Deng H. Pathophysiology of RAGE in inflammatory diseases. Front Immunol 2022; 13:931473. [PMID: 35967420 PMCID: PMC9373849 DOI: 10.3389/fimmu.2022.931473] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/06/2022] [Indexed: 12/24/2022] Open
Abstract
The receptor for advanced glycation end products (RAGE) is a non-specific multi-ligand pattern recognition receptor capable of binding to a range of structurally diverse ligands, expressed on a variety of cell types, and performing different functions. The ligand-RAGE axis can trigger a range of signaling events that are associated with diabetes and its complications, neurological disorders, cancer, inflammation and other diseases. Since RAGE is involved in the pathophysiological processes of many diseases, targeting RAGE may be an effective strategy to block RAGE signaling.
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