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Liu B, Han Y, Ye Y, Wei X, Li G, Jiang W. Atmospheric fine particulate matter (PM 2.5) induces pulmonary fibrosis by regulating different cell fates via autophagy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171396. [PMID: 38438032 DOI: 10.1016/j.scitotenv.2024.171396] [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: 12/23/2023] [Revised: 02/18/2024] [Accepted: 02/28/2024] [Indexed: 03/06/2024]
Abstract
The presence of respiratory diseases demonstrates a positive correlation with atmospheric fine particulate matter (PM2.5) exposure. The respiratory system is the main target organ affected by PM2.5, and exposure to PM2.5 elevates the likelihood of developing pulmonary fibrosis (PF). In this study, lung epithelial cell (BEAS-2B) and fibroblast (NIH-3T3) were used as in vitro exposure models to explore the mechanisms of PF. PM2.5 exposure caused mitochondrial damage in BEAS-2B cells and increased a fibrotic phenotype in NIH-3T3 cells. Epithelial cells and fibroblasts have different fates after PM2.5 exposure due to their different sensitivities to trigger autophagy. Exposure to PM2.5 inhibits mitophagy in BEAS-2B cells, which hinders the removal of damaged mitochondria and triggers cell death. In this process, the nuclear retention of the mitophagy-related protein Parkin prevents it from being recruited to mitochondria, resulting in mitophagy inhibition. In contrast, fibroblasts exhibit increased levels of autophagy, which may isolate PM2.5 and cause abnormal fibroblast proliferation and migration. Fibrotic phenotypes such as collagen deposition and increased α-actin also appear in fibroblasts. Our results identify PM2.5 as a trigger of PF and delineate the molecular mechanism of autophagy in PM2.5 induced PF, which provides new insights into the pulmonary injury.
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Affiliation(s)
- Bingyan Liu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Yangchen Han
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Yiyuan Ye
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Xiaoran Wei
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Gang Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Wei Jiang
- Environment Research Institute, Shandong University, Qingdao 266237, China.
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Ha JH, Lee BW, Yi DH, Lee SJ, Kim WI, Pak SW, Kim HY, Kim SH, Shin IS, Kim JC, Lee IC. Particulate matter-mediated oxidative stress induces airway inflammation and pulmonary dysfunction through TXNIP/NF-κB and modulation of the SIRT1-mediated p53 and TGF-β/Smad3 pathways in mice. Food Chem Toxicol 2024; 183:114201. [PMID: 38013002 DOI: 10.1016/j.fct.2023.114201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/01/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023]
Abstract
Exposure to particulate matter is currently recognized as a serious aggravating factor of respiratory diseases. In this study, we investigated the effects of particulate matter (PM) on the respiratory system in BALB/c mice and NCI-H292 cells. PM (0, 2.5, 5 and 20 mg/kg) was administered to mice by intra-tracheal instillation for 7 days. After a 7 day-repeated treatment of PM, we evaluated inflammatory cytokines/cell counts in bronchoalveolar lavage fluid (BALF) and conducted pulmonary histology and functional test. We also investigated the role of TXNIP/NF-κB and SIRT1-mediated p53 and TGF-β/Smad3 pathways in PM-induced airway inflammation and pulmonary dysfunction. PM caused a significant increase in pro-inflammatory cytokines, inflammatory cell counts in bronchoalveolar lavage fluid. PM-mediated oxidative stress down-regulated thioredoxin-1 and up-regulated thioredoxin-interacting protein and activation of nuclear factor-kappa B in the lung tissue and PM-treated NCI-H292 cells. PM suppressed sirtuin1 protein levels and increased p53 acetylation in PM-exposed mice and PM-treated NCI-H292 cells. In addition, PM caused inflammatory cell infiltration and the thickening of alveolar walls by exacerbating the inflammatory response in the lung tissue. PM increased levels of transforming growth factor-β, phosphorylation of Smad3 and activation of α-smooth muscle actin, and collagen type1A2 in PM-exposed mice and PM-treated NCI-H292 cells. In pulmonary function tests, PM exposure impaired pulmonary function resembling pulmonary fibrosis, characterized by increased resistance and elastance of the respiratory system, and resistance, elastance, and damping of lung tissues, whereas decreased compliance of the respiratory system, forced expired volume and forced vital capacity. Overall, PM-mediated oxidative stress caused airway inflammation and pulmonary dysfunction with pulmonary fibrosis via TXNIP pathway/NF-κB activation and modulation of the SIRT1-mediated TGF-β/Smad3 pathways. The results of this study can provide fundamental data on the potential adverse effects and underlying mechanism of pulmonary fibrosis caused by PM exposure as a public health concern. Due to the potential toxicity of PM, people with respiratory disease must be careful with PM exposure.
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Affiliation(s)
- Ji-Hye Ha
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea; College of Veterinary Medicine and BK21 FOUR Program, Chungnam National University, Daejeon, Republic of Korea
| | - Ba-Wool Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea; College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Da-Hye Yi
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Se-Jin Lee
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Woong-Il Kim
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - So-Won Pak
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Hyeon-Young Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea
| | - Sung-Hwan Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea
| | - In-Sik Shin
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Jong-Choon Kim
- College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea.
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea.
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Xue S, Li YX, Lu XX, Tang W. Dapagliflozin can alleviate renal fibrosis in rats with streptozotocin‑induced type 2 diabetes mellitus. Exp Ther Med 2023; 26:572. [PMID: 38023356 PMCID: PMC10652239 DOI: 10.3892/etm.2023.12271] [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: 04/26/2023] [Accepted: 08/14/2023] [Indexed: 12/01/2023] Open
Abstract
The aim of the present study was to explore the effects of Dapagliflozin on renal fibrosis in streptozotocin (STZ)-induced type 2 diabetes mellitus (T2DM) rats, and to determine the underlying mechanism of action. A total of 24 SPF male SD rats were randomly divided into 4 groups: A normal (Control) group, model group (STZ-induced T2DM rats), Dapagliflozin group (STZ-induced T2DM rats treated with 1 mg/kg Dapagliflozin), and a metformin group (STZ-induced T2DM rats treated with 200 mg/kg metformin), with 6 rats per a group. Peripheral blood and renal tissues were collected from these rats, and the renal indices of each group were examined. The fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c), blood urea nitrogen (BUN), and serum creatinine (SCr) of rats were detected. After 24 h, the urine was collected and the urine protein levels were measured. Hematoxylin and eosin staining was used to detect histological changes in the rat kidney; Masson staining was used to observe the degree of fibrosis in rat renal tissues; and western blot was performed to determine the expression levels of α-smooth muscle actin (SMA), vimentin, E-cadherin, TGF-β1, Smad7, and p-Smad3 in rat renal tissues. Dapagliflozin effectively inhibited the increase in FBG and HbA1c levels in diabetic mice, reduced renal tissue damage, reduced the renal index values, reduced collagen deposition in the glomerulus and interstitial area, and reduced the proliferation of glomerular mesangial cells. In addition, Dapagliflozin significantly lowered the levels of BUN, SCr, and 24-h urine protein, decreased the protein expression of α-SMA, vimentin, TGF-β1, and p-Smad3, and increased the protein expression levels of E-cadherin and Smad7. Together, these results showed that Dapagliflozin alleviated renal fibrosis in STZ-induced T2DM rats, and its mechanism of action may be related to the inhibition of the TGF-β1/Smad pathway.
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Affiliation(s)
- Song Xue
- Department of Endocrinology, Shanghai Changzheng Hospital, Shanghai 200003, P.R. China
| | - Ying-Xuan Li
- Department of Endocrinology, Shanghai Gongli Hospital, Shanghai 200135, P.R. China
| | - Xiao-Xiao Lu
- Department of Endocrinology, Shanghai Zhoupu Hospital, Shanghai 201318, P.R. China
| | - Wei Tang
- Department of Endocrinology, Shanghai Changzheng Hospital, Shanghai 200003, P.R. China
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Dubin RF, Deo R, Ren Y, Wang J, Zheng Z, Shou H, Go AS, Parsa A, Lash JP, Rahman M, Hsu CY, Weir MR, Chen J, Anderson A, Grams ME, Surapaneni A, Coresh J, Li H, Kimmel PL, Vasan RS, Feldman H, Segal MR, Ganz P. Proteomics of CKD progression in the chronic renal insufficiency cohort. Nat Commun 2023; 14:6340. [PMID: 37816758 PMCID: PMC10564759 DOI: 10.1038/s41467-023-41642-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 09/13/2023] [Indexed: 10/12/2023] Open
Abstract
Progression of chronic kidney disease (CKD) portends myriad complications, including kidney failure. In this study, we analyze associations of 4638 plasma proteins among 3235 participants of the Chronic Renal Insufficiency Cohort Study with the primary outcome of 50% decline in estimated glomerular filtration rate or kidney failure over 10 years. We validate key findings in the Atherosclerosis Risk in the Communities study. We identify 100 circulating proteins that are associated with the primary outcome after multivariable adjustment, using a Bonferroni statistical threshold of significance. Individual protein associations and biological pathway analyses highlight the roles of bone morphogenetic proteins, ephrin signaling, and prothrombin activation. A 65-protein risk model for the primary outcome has excellent discrimination (C-statistic[95%CI] 0.862 [0.835, 0.889]), and 14/65 proteins are druggable targets. Potentially causal associations for five proteins, to our knowledge not previously reported, are supported by Mendelian randomization: EGFL9, LRP-11, MXRA7, IL-1 sRII and ILT-2. Modifiable protein risk markers can guide therapeutic drug development aimed at slowing CKD progression.
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Affiliation(s)
- Ruth F Dubin
- Division of Nephrology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Rajat Deo
- Division of Cardiovascular Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Yue Ren
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jianqiao Wang
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Zihe Zheng
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Haochang Shou
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alan S Go
- Division of Research, Kaiser Permanente Northern California, Oakland, the Department of Health Systems Science, Oakland, CA, USA
| | - Afshin Parsa
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - James P Lash
- Department of Medicine, University of Illinois Chicago, Chicago, IL, USA
| | - Mahboob Rahman
- Department of Medicine, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Chi-Yuan Hsu
- Division of Research, Kaiser Permanente Northern California, Oakland, the Department of Health Systems Science, Oakland, CA, USA
- Division of Nephrology, University of California San Francisco, San Francisco, CA, USA
| | - Matthew R Weir
- Division of Nephrology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Jing Chen
- Department of Epidemiology, Tulane University, New Orleans, LA, USA
| | - Amanda Anderson
- Department of Epidemiology, Tulane University, New Orleans, LA, USA
| | - Morgan E Grams
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University, Baltimore, MD, USA
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Division of Precision Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Aditya Surapaneni
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University, Baltimore, MD, USA
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Division of Precision Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Josef Coresh
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University, Baltimore, MD, USA
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Hongzhe Li
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Paul L Kimmel
- Division of Kidney, Urologic, and Hematologic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ramachandran S Vasan
- University of Texas School of Public Health San Antonio and the University of Texas Health Sciences Center in San Antonio. Section of Preventive Medicine and Epidemiology, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Harold Feldman
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Mark R Segal
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Peter Ganz
- Division of Cardiology, University of California, San Francisco, San Francisco, CA, USA
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5
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Smith C, du Toit R, Ollewagen T. Potential of bone morphogenetic protein-7 in treatment of lupus nephritis: addressing the hurdles to implementation. Inflammopharmacology 2023; 31:2161-2172. [PMID: 37626268 PMCID: PMC10518293 DOI: 10.1007/s10787-023-01321-x] [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: 08/03/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023]
Abstract
Up to 50% of systemic lupus erythematosus (SLE) patients world-wide develop lupus nephritis (LN). In low to middle income countries and in particular in sub-Saharan Africa, where SLE is prevalent with a more aggressive course, LN and end stage renal disease is a major cause of mortality. While developed countries have the funding to invest in SLE and LN research, patients of African descent are often underrepresented in clinical trials. Thus, the complex influence of ethnicity and genetic background on outcome of LN and SLE as a whole, is not fully understood. Several pathophysiological mechanisms including major role players driving LN have been identified. A large body of literature suggest that prevention of fibrosis-which contributes to chronicity of LN-may significantly improve long-term prognosis. Bone morphogenetic protein-7 (BMP-7) was first identified as a therapeutic option in this context decades ago and evidence of its benefit in various conditions, including LN, is ever-increasing. Despite these facts, BMP-7 is not being implemented as therapy in the context of renal disease. With this review, we briefly summarise current understanding of LN pathology and discuss the evidence in support of therapeutic potential of BMP-7 in this context. Lastly, we address the obstacles that need to be overcome, before BMP-7 may become available as LN treatment.
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Affiliation(s)
- Carine Smith
- Experimental Medicine Research Group, Department Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa.
| | - Riette du Toit
- Division Rheumatology, Department Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa
| | - Tracey Ollewagen
- Experimental Medicine Research Group, Department Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa
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Chen Y, Zou H, Lu H, Xiang H, Chen S. Research progress of endothelial-mesenchymal transition in diabetic kidney disease. J Cell Mol Med 2022; 26:3313-3322. [PMID: 35560773 PMCID: PMC9189345 DOI: 10.1111/jcmm.17356] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 02/22/2022] [Accepted: 03/28/2022] [Indexed: 12/25/2022] Open
Abstract
Renal fibrosis is an important pathological feature of diabetic kidney disease (DKD), manifested as tubular interstitial fibrosis, tubular atrophy, glomerulosclerosis and damage to the normal structure of the kidney. Renal fibrosis can eventually develop into renal failure. A better understanding of renal fibrosis in DKD is needed due to clinical limitations of current anti‐fibrotic drugs in terms of effectiveness, cost‐effectiveness and side effects. Fibrosis is characterized by local excessive deposition of extracellular matrix, which is derived from activated myofibroblasts to increase its production or specific tissue inhibitors of metalloproteinases to reduce its degradation. In recent years, endothelial‐mesenchymal transition (EndMT) has gradually integrated into the pathogenesis of fibrosis. In animal models of diabetic kidney disease, it has been found that EndMT is involved in the formation of renal fibrosis and multiple signalling pathways such as TGF‐β signalling pathway, Wnt signalling pathway and non‐coding RNA network participate in the regulation of EndMT during fibrosis. Here, we mainly review EndMT regulation and targeted therapy of renal fibrosis in DKD.
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Affiliation(s)
- Ying Chen
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha, China
| | - Hang Zou
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha, China
| | - Hongwei Lu
- Center for Experimental Medical Research, The Third Xiangya Hospital of Central South University, Changsha, China.,Department of Cardiology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Hong Xiang
- Center for Experimental Medical Research, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Shuhua Chen
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Central South University, Changsha, China
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Kilci H, Altınbilek E, Çetinkal G, Sığırcı S, Koçaş BB, Yıldız SS, Kılıçkesmez KO. Relation of a novel fibrosis marker and post-myocardial infarction left ventricular ejection fraction in revascularized patients. Biomark Med 2021; 15:1651-1658. [PMID: 34704823 DOI: 10.2217/bmm-2021-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To investigate the relationship between post-myocardial infarction (MI) left ventricular ejection fraction (LVEF) and fibrosis marker HE-4 in primarily revascularized patients with ST-segment elevation MI (STEMI). Patients & methods: In 94 consecutive STEMI patients (median age 57 [IQR: 50-69] years; 77.7% male), HE-4 values were measured at hospital admission and 4 days after STEMI. Transthoracic echocardiography was performed 4 days after STEMI (median 5 days [interquartile range: 4-6]). Results: HE-4 levels 4 days after STEMI were significantly higher in the low ejection fraction group (30.1 [26.0-46.5] pmol/l vs 48.5 [32.5-85.9] pmol/l, p = 0.004). In the multivariable analysis, HE-4 values (odds ratio: 1.029, 95% CI: 1.012-1.046, p = 0.001), troponin I levels, anterior MI and diabetes mellitus were independent predictors of low LVEF after STEMI. A negative correlation existed between ΔHE-4 levels and LVEF (r: -0.337, p = 0.001). Receiver operating characteristic analysis indicated 34.01 pmol/l HE-4 at 4 days after STEMI identified patients with low LVEF (AUC = 0.707; 95% CI: 0.601-0.813; p = 0.001). Conclusion: In revascularized STEMI patients, high HE-4 levels are associated with decreased LVEF. HE-4 may represent a diagnostic marker and treatment target for patients with heart failure or left ventricular systolic dysfunction after STEMI.
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Affiliation(s)
- Hakan Kilci
- Department of Cardiology, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371,Turkey
| | - Ertuğrul Altınbilek
- Department of Emergency, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371, Turkey
| | - Gökhan Çetinkal
- Department of Cardiology, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371,Turkey
| | - Serhat Sığırcı
- Department of Cardiology, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371,Turkey
| | - Betül B Koçaş
- Department of Cardiology, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371,Turkey
| | - Süleyman S Yıldız
- Department of Cardiology, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371,Turkey
| | - Kadriye Orta Kılıçkesmez
- Department of Cardiology, Sisli Hamidiye Etfal Training & Research Hospital, Istanbul, 34371,Turkey
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Ziller N, Kotolloshi R, Esmaeili M, Liebisch M, Mrowka R, Baniahmad A, Liehr T, Wolf G, Loeffler I. Sex Differences in Diabetes- and TGF-β1-Induced Renal Damage. Cells 2020; 9:E2236. [PMID: 33023010 PMCID: PMC7600610 DOI: 10.3390/cells9102236] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/24/2020] [Accepted: 10/01/2020] [Indexed: 12/25/2022] Open
Abstract
While females are less affected by non-diabetic kidney diseases compared to males, available data on sex differences in diabetic nephropathy (DN) are controversial. Although there is evidence for an imbalance of sex hormones in diabetes and hormone-dependent mechanisms in transforming growth factor β1 (TGF-β1) signaling, causes and consequences are still incompletely understood. Here we investigated the influence of sex hormones and sex-specific gene signatures in diabetes- and TGF-β1-induced renal damage using various complementary approaches (a db/db diabetes mouse model, ex vivo experiments on murine renal tissue, and experiments with a proximal tubular cell line TKPTS). Our results show that: (i) diabetes affects sex hormone concentrations and renal expression of their receptors in a sex-specific manner; (ii) sex, sex hormones and diabetic conditions influence differences in expression of TGF-β1, its receptor and bone morphogenetic protein 7 (BMP7); (iii) the sex and sex hormones, in combination with variable TGF-β1 doses, determine the net outcome in TGF-β1-induced expression of connective tissue growth factor (CTGF), a profibrotic cytokine. Altogether, these results suggest complex crosstalk between sex hormones, sex-dependent expression pattern and profibrotic signals for the precise course of DN development. Our data may help to better understand previous contradictory findings regarding sex differences in DN.
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Affiliation(s)
- Nadja Ziller
- Department of Internal Medicine III, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (N.Z.); (M.L.); (R.M.)
| | - Roland Kotolloshi
- Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (R.K.); (M.E.); (A.B.); (T.L.)
| | - Mohsen Esmaeili
- Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (R.K.); (M.E.); (A.B.); (T.L.)
| | - Marita Liebisch
- Department of Internal Medicine III, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (N.Z.); (M.L.); (R.M.)
| | - Ralf Mrowka
- Department of Internal Medicine III, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (N.Z.); (M.L.); (R.M.)
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (R.K.); (M.E.); (A.B.); (T.L.)
| | - Thomas Liehr
- Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (R.K.); (M.E.); (A.B.); (T.L.)
| | - Gunter Wolf
- Department of Internal Medicine III, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (N.Z.); (M.L.); (R.M.)
| | - Ivonne Loeffler
- Department of Internal Medicine III, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany; (N.Z.); (M.L.); (R.M.)
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9
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Ferraro S, Panteghini M. Making new biomarkers a reality: the case of serum human epididymis protein 4. Clin Chem Lab Med 2020; 57:1284-1294. [PMID: 30511925 DOI: 10.1515/cclm-2018-1111] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 10/31/2018] [Indexed: 01/01/2023]
Abstract
Background Measurement of human epididymis protein 4 (HE4) in serum has recently been proposed for clinical use in the framework of ovarian cancer (OvCa). We sought to retrace the translational phase and the clinical implementation steps boosting HE4's clinical value and discuss the effects of its introduction on the diagnostic and management pathways. Methods Meta-analyses of running evidence have preliminarily suggested that HE4 may overcome carbohydrate antigen 125 (CA125) in identifying OvCa, showing however several gaps that need to be considered, i.e. definition of biomarker diagnostic performance in the early detection of OvCa, added diagnostic value, biological and lifestyle factors of variation, and optimal interpretative criteria. Investigation of the influencing factors has shown that renal impairment represents a major limitation for HE4's diagnostic power. On the other hand, the demonstration of the substantial equivalence of results obtained by commercially available assays allows recommending harmonized thresholds for diagnostic purpose, even if the study of HE4's biological variation has clarified that the longitudinal interpretation of the biomarker changes according to the reference change value could be more appropriate. Summary We used HE4 as an example for describing the long and bumpy road for making a new biomarker a reality, and the issues that should be checked and the information that should be provided in moving a novel biomarker from its discovery to an effective clinical adoption.
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Affiliation(s)
- Simona Ferraro
- UOC Patologia Clinica, Ospedale "Luigi Sacco", Via GB Grassi 74, 20157 Milano, Italy.,Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Mauro Panteghini
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
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10
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Zhang T, Long H, Li J, Chen Z, Wang F, Jiang SW. WFDC2 gene deletion in mouse led to severe dyspnea and type-I alveolar cell apoptosis. Biochem Biophys Res Commun 2020; 522:456-462. [DOI: 10.1016/j.bbrc.2019.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 11/02/2019] [Indexed: 01/08/2023]
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11
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O'Keefe KJ, DeSantis KA, Altrieth AL, Nelson DA, Taroc EZM, Stabell AR, Pham MT, Larsen M. Regional Differences following Partial Salivary Gland Resection. J Dent Res 2019; 99:79-88. [PMID: 31765574 DOI: 10.1177/0022034519889026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Regenerative medicine aims to repair, replace, or restore function to tissues damaged by aging, disease, or injury. Partial organ resection is not only a common clinical approach in cancer therapy but also an experimental injury model used to examine mechanisms of regeneration and repair in organs. We performed a partial resection, or partial sialoadenectomy, in the female murine submandibular salivary gland (SMG) to establish a model for investigation of repair mechanisms in salivary glands (SGs). After partial sialoadenectomy, we performed whole-gland measurements over a period of 56 d and found that the gland increased slightly in size. We used microarray analysis and immunohistochemistry (IHC) to examine messenger RNA and protein changes in glands over time. Microarray analysis identified dynamic changes in the transcriptome 3 d after injury that were largely resolved by day 14. At the 3-d time point, we detected gene signatures for cell cycle regulation, inflammatory/repair response, and extracellular matrix (ECM) remodeling in the partially resected glands. Using quantitative IHC, we identified a transient proliferative response throughout the gland. Both secretory epithelial and stromal cells expressed Ki67 that was detectable at day 3 and largely resolved by day 14. IHC also revealed that while most of the gland underwent a wound-healing response that resolved by day 14, a small region of the gland showed an aberrant sustained fibrotic response characterized by increased levels of ECM deposition, sustained Ki67 levels in stromal cells, and a persistent M2 macrophage response through day 56. The partial submandibular salivary gland resection model provides an opportunity to examine a normal healing response and an aberrant fibrotic response within the same gland to uncover mechanisms that prevent wound healing and regeneration in mammals. Understanding regional differences in the wound-healing responses may ultimately affect regenerative therapies for patients.
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Affiliation(s)
- K J O'Keefe
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, State University of New York, University at Albany, Albany, NY, USA.,Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA
| | - K A DeSantis
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, State University of New York, University at Albany, Albany, NY, USA.,Gen*NY*Sis Center for Excellence in Cancer, Department of Environmental Health Sciences, School of Public Health, State University of New York, University at Albany, Albany, NY, USA
| | - A L Altrieth
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, State University of New York, University at Albany, Albany, NY, USA.,Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA
| | - D A Nelson
- Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA
| | - E Z M Taroc
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, State University of New York, University at Albany, Albany, NY, USA.,Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA
| | - A R Stabell
- Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA.,Current address: Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA
| | - M T Pham
- Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA.,Current address: The Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush Campus, Midlothian, Scotland, UK
| | - M Larsen
- Molecular, Cellular, Developmental, and Neural Biology Graduate Program, State University of New York, University at Albany, Albany, NY, USA.,Department of Biological Sciences, State University of New York, University at Albany, Albany, NY, USA
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12
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Xu Z, Li Z, Liao Z, Gao S, Hua L, Ye X, Wang Y, Jiang S, Wang N, Zhou D, Deng X. PM 2.5 induced pulmonary fibrosis in vivo and in vitro. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:112-121. [PMID: 30597315 DOI: 10.1016/j.ecoenv.2018.12.061] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/19/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023]
Abstract
Epidemiological studies have revealed positive correlation between particulate matter with an aerodynamic diameter of < 2.5 µm (PM2.5) and pulmonary fibrosis (PF). As etiology and pathogenesis of PF have not been fully elucidated, this study was to investigate the potential mechanism by which PM2.5 exposure adversely induced PF in vivo and in vitro. In the present study, 6-week-old C57/BL6J mice were intranasally administrated with PM2.5 (100 μg/day) for 4 weeks. Micro-CT and hematoxylin-eosin (HE) staining analysis showed that lung inflammation and incipient fibrosis symptoms were induced after PM2.5 exposure. The expression of Transforming growth factor-β1 (TGF-β1), α-Smooth muscle actin (α-SMA), and Collagen type I (COL1) in mice lung was increased. Upregulation of TGF-β1 in mice serum was also detected by ELISA after exposure to PM2.5. Moreover, chronic PM2.5 exposure on human bronchial epithelial cell line BEAS-2B cells led to activation of TGF-β1/SMAD3 pathway, TGF-β1 excretion and epithelial-mesenchymal transition (EMT), while PM2.5 also triggered the activation of TGF-β1/SMAD3 pathway, TGF-β1 excretion as well as differentiation of human pulmonary fibroblast cell line HFL-1 cells, and TGF-β1 production in mouse macrophage cell line RAW264.7 cells. Furthermore, cell culture medium of PM2.5-treated BEAS-2B and RAW264.7 cells could both activate TGF-β1/SMAD3 signaling, α-SMA and COL1 upregulation in HFL-1 cells. Therefore, we concluded that PM2.5 could induce PF by targeting pulmonary epithelium, macrophages and fibroblasts, suggesting that PM2.5 was a potent initiator of PF.
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Affiliation(s)
- Zihan Xu
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zilin Li
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ziyi Liao
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Sumeng Gao
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Li Hua
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiaofei Ye
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yu Wang
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital and Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Shan Jiang
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Ning Wang
- Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Dan Zhou
- Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.
| | - Xiaobei Deng
- Faculty of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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13
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The diagnostic value of human epididymis protein 4 as a novel biomarker in patients with renal dysfunction. Int Urol Nephrol 2018; 50:2043-2048. [PMID: 30006786 DOI: 10.1007/s11255-018-1930-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE In this study, we investigated the diagnostic value of human epididymis protein 4 (HE4) in acute and chronic renal dysfunction and analyzed the correlation between HE4 levels and the results of routine renal function tests. We aimed to provide evidence to establish HE4 as a novel biomarker of renal injury and its appropriate application as a marker of ovarian cancer. METHODS We collected 259 serum samples from hospitalized patients with different causes of renal damage. HE4 serum levels were detected by chemiluminescence and the levels of serum creatinine, urea, and cystatin C were tested by conventional clinical chemical methods. RESULTS The levels of HE4 were highest in the acute kidney injury groups and chronic kidney disease groups, although other groups were also significantly higher than the control group. HE4 and creatinine, urea, and cystatin C had a positive linear correlation. In contrast, HE4 and estimated glomerular filtration rate (eGFR) had a negative linear correlation, with a correlation coefficient of - 0.674 (P < 0.01). Area under the receiver-operating characteristic curve analysis showed that HE4 has higher diagnostic value compared with creatinine, urea, and cystatin C in both acute and chronic renal injury patients; however, HE4 and creatinine have a similar diagnostic value. Notably, HE4 concentration gradually increased with a decline of glomerular filtration rate, with significant differences evident between different eGFR stages. CONCLUSION HE4 is a potential biomarker of kidney injury in acute and chronic renal dysfunction. Importantly, clinicians should be aware of this when using HE4 to diagnose ovarian cancer.
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Wu CT, Wang CC, Huang LC, Liu SH, Chiang CK. Plasticizer Di-(2-Ethylhexyl)Phthalate Induces Epithelial-to-Mesenchymal Transition and Renal Fibrosis In Vitro and In Vivo. Toxicol Sci 2018; 164:363-374. [DOI: 10.1093/toxsci/kfy094] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Cheng-Tien Wu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ching-Chia Wang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Chen Huang
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shing-Hwa Liu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chih-Kang Chiang
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Integrated Diagnostics & Therapeutics, College of Medicine and Hospital, National Taiwan University, Taipei, Taiwan
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15
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CERA Attenuates Kidney Fibrogenesis in the db/db Mouse by Influencing the Renal Myofibroblast Generation. J Clin Med 2018; 7:jcm7020015. [PMID: 29385703 PMCID: PMC5852431 DOI: 10.3390/jcm7020015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 01/24/2018] [Accepted: 01/24/2018] [Indexed: 12/24/2022] Open
Abstract
Tubulointerstitial fibrosis (TIF) is a pivotal pathophysiological process in patients with diabetic nephropathy (DN). Multiple profibrotic factors and cell types, including transforming growth factor beta 1 (TGF-β1) and interstitial myofibroblasts, respectively, are responsible for the accumulation of extracellular matrix in the kidney. Matrix-producing myofibroblasts can originate from different sources and different mechanisms are involved in the activation process of the myofibroblasts in the fibrotic kidney. In this study, 16-week-old db/db mice, a model for type 2 DN, were treated for two weeks with continuous erythropoietin receptor activator (CERA), a synthetic erythropoietin variant with possible non-hematopoietic, tissue-protective effects. Non-diabetic and diabetic mice treated with placebo were used as controls. The effects of CERA on tubulointerstitial fibrosis (TIF) as well as on the generation of the matrix-producing myofibroblasts were evaluated by morphological, immunohistochemical, and molecular biological methods. The placebo-treated diabetic mice showed significant signs of beginning renal TIF (shown by picrosirius red staining; increased connective tissue growth factor (CTGF), fibronectin and collagen I deposition; upregulated KIM1 expression) together with an increased number of interstitial myofibroblasts (shown by different mesenchymal markers), while kidneys from diabetic mice treated with CERA revealed less TIF and fewer myofibroblasts. The mechanisms, in which CERA acts as an anti-fibrotic agent/drug, seem to be multifaceted: first, CERA inhibits the generation of matrix-producing myofibroblasts and second, CERA increases the ability for tissue repair. Many of these CERA effects can be explained by the finding that CERA inhibits the renal expression of the cytokine TGF-β1.
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16
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Chen P, Yang Q, Li X, Qin Y. Potential association between elevated serum human epididymis protein 4 and renal fibrosis: A systemic review and meta-analysis. Medicine (Baltimore) 2017; 96:e7824. [PMID: 28885334 PMCID: PMC6392936 DOI: 10.1097/md.0000000000007824] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Human epididymis protein 4 (HE4), a matrix metalloprotease 2 (MMP2), and a matrix metalloprotease 9 (MMP9) inhibitor, promotes renal fibrosis by inhibiting the degradation of type I collagen. However, the predictive value of HE4 for renal fibrosis remains controversial, even though it has been identified as one of the most upregulated genes in cultured fibrosis-associated myofibroblasts. This systematic review and meta-analysis was conducted to investigate the potential association between circulating HE4 and renal fibrosis. METHODS Original and review articles published until January 2017 that analyzed the performance of serum HE4 in renal fibrosis were systematically searched for in PubMed (1966-2017.1), Cochrane Library, Web of Science, EMBASE (1980-2017.1), China National Knowledge Infrastructure, Wanfang Database, and VIP (Weipu Database). The meta-analysis was performed using RevMan 5.3 version. Pertinent studies were reviewed and the standardized mean difference (SMD) with 95% confidence interval was extracted. A total of 5 studies reporting 460 participants were included in the final analysis. Subgroup and sensitivity analyses were performed to explore the potential sources of between-study heterogeneity. RESULTS The results demonstrated that elevated serum HE4 favored the diagnosis of renal fibrosis across all trials (SMD = 1.41; 95% confidence interval, 0.82-2.01; P < .001). The bubble graph indicated statistically robust result. The pooled SMD was similar after removing any single study for sensitivity analysis. CONCLUSION The present study suggests a positive association between circulating HE4 and renal fibrosis. Further studies are needed to investigate the effects of interventions on HE4, and the value of HE4 as a biomarker.
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17
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Ferraro S, Pasqualetti S, Carnevale A, Panteghini M. Cystatin C provides a better estimate of the effect of glomerular filtration rate on serum human epididymis protein 4 concentrations. Clin Chem Lab Med 2017; 54:1629-34. [PMID: 27092650 DOI: 10.1515/cclm-2015-1272] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 03/10/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND We evaluated the effect of kidney glomerular function on serum concentrations of human epididymis protein 4 (HE4) using creatinine (Cr), cystatin C (CysC) and related chronic kidney disease epidemiology collaboration (CKD-EPI) equations. METHODS We enrolled 101 women aged ≤56 years with a glomerular filtration rate (GFR) (estimated by CKD-EPI eGFRCr) ranging from 60 to 120 mL/min/1.73 m2, free of any disease and biological and life-style factors known to influence serum HE4 concentrations, and we measured serum Cr, CysC and HE4 concentrations. Cr and CysC values were included in the three CKD-EPI equations to obtain GFR estimates. RESULTS A statistically significant increase in HE4 median concentrations was detected in subjects with an eGFRCr between 60 and 74 mL/min/1.73 m2 when compared with those with an eGFR >90 mL/min/1.73 m2 (54.2 vs. 42.2 pmol/L, p=0.003). Regression models showed that CysC measurement per se and eGFRCysC were the most sensitive markers to catch HE4 increases due to a mild decrease in renal function [adjusted r2, 0.38 (p=0.00003) and 0.37 (p=0.0004), respectively]. By assuming baseline CysC and eGFRCysC at 0.80 mg/L and 101.5 mL/min/1.73 m2, an increase of 0.10 mg/L in CysC concentrations and a decrease of 10 mL/min of eGFRCysC implied an average (±SE) increase in serum HE4 concentrations of 9.2 (±1.2) and 8.8 (±1.1) pmol/L, respectively. CONCLUSIONS Our study shows that a better estimate of the effect of GFR on serum HE4 is obtained by measuring CysC in serum or using CKD-EPI eGFRCysC equation.
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18
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Sun L, Zou LX, Chen MJ. Make Precision Medicine Work for Chronic Kidney Disease. Med Princ Pract 2017; 26:101-107. [PMID: 28152529 PMCID: PMC5588375 DOI: 10.1159/000455101] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 12/13/2016] [Indexed: 02/03/2023] Open
Abstract
Precision medicine is based on accurate diagnosis and tailored intervention through the use of omics and clinical data together with epidemiology and environmental exposures. Precision medicine should be achieved with minimum adverse events and maximum efficacy in patients with chronic kidney disease (CKD). In this review, the breakthroughs of omics in CKD and the application of systems biology are reviewed. The potential role of transforming growth factor-β1 in the targeted intervention of renal fibrosis is discussed as an example of how to make precision medicine work for CKD.
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Affiliation(s)
- Ling Sun
- *Ling Sun, Department of Nephrology, Xuzhou Central Hospital, Medical College of Southeast University, Xuzhou City, Jiangsu Province (China), E-Mail
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19
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Immune complexes and complexity: investigating mechanisms of renal disease. Int Urol Nephrol 2016; 49:735-739. [PMID: 27864659 DOI: 10.1007/s11255-016-1450-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 10/28/2016] [Indexed: 10/20/2022]
Abstract
The deposition of immune complexes is the causal factor in distinct renal pathologies, e.g., lupus nephritis and membranous nephritis. The location of these deposits within a tissue biopsy is often the key to establishing a diagnosis. However, how immune complexes come to be deposited below the vascular endothelium was, until now, a mystery, as was their contribution to inducing inflammation. A recent paper in Cell by Stamatiades et al. (Cell 164(4):991-1003, 2016) demonstrates the active transport of immune complexes by the vascular endothelial cells and an Fc receptor-dependent uptake by tissue-resident macrophages. This leads to the activation of these macrophages and the release of pro-inflammatory cytokines, which in turn recruits immune cells from the blood into the kidney. The identification of these mechanisms should lead to a better stratification of kidney diseases and hopefully to the development of specific therapies.
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Marković-Lipkovski J, Životić M, Müller CA, Tampe B, Ćirović S, Vještica J, Tomanović N, Zeisberg M, Müller GA. Variable Expression of Neural Cell Adhesion Molecule Isoforms in Renal Tissue: Possible Role in Incipient Renal Fibrosis. PLoS One 2015; 10:e0137028. [PMID: 26327314 PMCID: PMC4556687 DOI: 10.1371/journal.pone.0137028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 08/11/2015] [Indexed: 01/06/2023] Open
Abstract
Rare neural cell adhesion molecule (NCAM) positive cells have been previously described within the normal human adult kidney interstitium, speculating that they could increase in the interstitium with incipient interstitial renal fibrosis (IRF). In the present study, among 93 biopsy samples of various kidney diseases, NCAM+ interstitial cells were detected in 62.4% cases. An increased number of NCAM+ cells was significantly observed only in incipient IRF compared to normal renal tissues and advanced IRF stages (p<0.001), independently of underlying diseases (p = 0.657). All three major NCAM isoforms’ RT-PCR bands were visible either in normal or in kidneys with incipient IRF, albeit their mRNA expression levels measured by qRT-PCR were different. Applying qRT-PCR on pure NCAM+ cells population, obtained by laser capture microdissection, significant mRNA over-expression of NCAM140kD isoform was found in NCAM+ cells within incipient IRF (p = 0.004), while NCAM120kD and NCAM180kD isoforms were not changed significantly (p = 0.750; p = 0.704; respectively). Simultaneously, qRT-PCR also showed significant αSMA (p = 0.014) and SLUG (p = 0.004) mRNAs up-regulation within the NCAM+ cells of incipient IRF, as well as highly decreased matrix metalloproteinases (MMP) -2 and -9 mRNAs (p = 0.028; p = 0.036; respectively). However, using double immunofluorescence MMP-9 could still be detectable on the protein level in rare NCAM+ cells within the incipient IRF. Further characterization of NCAM+ cells by double immunofluorescent labeling revealed their association with molecules involved in fibrosis. Fibroblast growth factor receptor 1 (FGFR1) and α5β1 integrin were extensively expressed on NCAM+ cells within the incipient IRF areas, whereas human epididymis protein-4 (HE4) was found to be present in few NCAM+ cells of both normal and interstitium with incipient fibrosis. Heterogeneity of NCAM+ interstitial cells in normal and incipient IRF, concerning molecules related to fibrosis and variable expression of NCAM isoforms, could suggest diverse role of NCAM+ cells in homeostasis and in regulation of renal fibrosis in diseased kidneys.
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Affiliation(s)
| | - Maja Životić
- Institute of Pathology, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Claudia A. Müller
- Section for Transplantation Immunology and Immunohematology, ZMF, University Medical Clinic, Eberhard Karls University, Tübingen, Germany
- Department of Nephrology and Rheumatology, Göttingen University Medical Center, Georg-August University, Göttingen, Germany
| | - Björn Tampe
- Department of Nephrology and Rheumatology, Göttingen University Medical Center, Georg-August University, Göttingen, Germany
| | - Sanja Ćirović
- Institute of Pathology, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Jelena Vještica
- Institute of Pathology, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Nada Tomanović
- Institute of Pathology, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Michael Zeisberg
- Department of Nephrology and Rheumatology, Göttingen University Medical Center, Georg-August University, Göttingen, Germany
| | - Gerhard A. Müller
- Department of Nephrology and Rheumatology, Göttingen University Medical Center, Georg-August University, Göttingen, Germany
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Li L, Chen L, Zang J, Tang X, Liu Y, Zhang J, Bai L, Yin Q, Lu Y, Cheng J, Fu P, Liu F. C3a and C5a receptor antagonists ameliorate endothelial-myofibroblast transition via the Wnt/β-catenin signaling pathway in diabetic kidney disease. Metabolism 2015; 64:597-610. [PMID: 25682062 DOI: 10.1016/j.metabol.2015.01.014] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 01/20/2015] [Accepted: 01/21/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND Endothelial-myofibroblast transition (EndMT) has been implicated in the pathogenesis of diabetic renal fibrosis. In this study, the effect of the complement fragments C3a/C5a and their receptor antagonists C3aRA and C5aRA on EndMT in diabetic kidney disease (DKD) and the possible mechanisms were investigated. METHODS The coexpression of CD31 with α-smooth muscle (α-SMA), C3a receptor (C3aR) and C5a receptor (C5aR) was detected in human renal biopsy tissue obtained from patients with early and advanced DKD and in normal renal tissues from patients with renal-cell carcinoma. The effects of C3aRA and C5aRA on EndMT and the expression of C3a/C3aR, C5a/C5aR, α-SMA, CD31, TGFβ, FN and β-catenin were examined in a streptozotocin (STZ)-induced rat model of DKD and in human renal glomerular endothelial cells (HRGECs) cultured in high glucose and with C3a/C5a, and DKK1 (a Wnt/β-catenin inhibitor). RESULTS Double-labeling of α-SMA, C3aR, C5aR and CD31 was detected in the glomerulus of renal tissues obtained from biopsies of patients with DKD. Upregulated expression of α-SMA, TGF-β, FN and β-catenin and downregulated expression of CD31 were detected in the GECs of diabetic rats. The expression of these proteins was inhibited by treatment with C3aRA/C5aRA. In vitro, C3aRA/C5aRA and DKK1 ameliorated the high glucose-induced EndMT and the subsequent expression of α-SMA, TGFβ, FN and β-catenin in HRGECs. CONCLUSIONS The blockade of C3aR/C5aR and the downstream Wnt/β-catenin pathway may prevent EndMT and alleviate fibrosis in the glomeruli of individuals with DKD.
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Affiliation(s)
- Ling Li
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Lijia Chen
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Jing Zang
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Xi Tang
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Yan Liu
- Laboratory Animal Center of Sichuan University, Chengdu 610041, Sichuan, China
| | - Jie Zhang
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Lin Bai
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Qinghua Yin
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Yanrong Lu
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Jingqiu Cheng
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, Regenerative Medicine Research Center, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Ping Fu
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China
| | - Fang Liu
- Division of Nephrology, West China Hospital of Sichuan University, Chengdu 610041, Sichuan, China.
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