1
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Rana R, Manoharan J, Elwakiel A, Zimmermann S, Lindquist JA, Gupta D, Al-Dabet MM, Gadi I, Fallmann J, Singh K, Gupta A, Biemann R, Brandt S, Alo B, Kluge P, Garde R, Lamers C, Shahzad K, Künze G, Kohli S, Mertens PR, Isermann B. Glomerular-tubular crosstalk via cold shock Y-box binding protein-1 in the kidney. Kidney Int 2024; 105:65-83. [PMID: 37774921 DOI: 10.1016/j.kint.2023.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 08/02/2023] [Accepted: 09/01/2023] [Indexed: 10/01/2023]
Abstract
Glomerular-tubular crosstalk within the kidney has been proposed, but the paracrine signals enabling this remain largely unknown. The cold-shock protein Y-box binding protein 1 (YBX1) is known to regulate inflammation and kidney diseases but its role in podocytes remains undetermined. Therefore, we analyzed mice with podocyte specific Ybx1 deletion (Ybx1ΔPod). Albuminuria was increased in unchallenged Ybx1ΔPod mice, which surprisingly was associated with reduced glomerular, but enhanced tubular damage. Tubular toll-like receptor 4 (TLR4) expression, node-like receptor protein 3 (NLRP3) inflammasome activation and kidney inflammatory cell infiltrates were all increased in Ybx1ΔPod mice. In vitro, extracellular YBX1 inhibited NLRP3 inflammasome activation in tubular cells. Co-immunoprecipitation, immunohistochemical analyses, microscale cell-free thermophoresis assays, and blunting of the YBX1-mediated TLR4-inhibition by a unique YBX1-derived decapeptide suggests a direct interaction of YBX1 and TLR4. Since YBX1 can be secreted upon post-translational acetylation, we hypothesized that YBX1 secreted from podocytes can inhibit TLR4 signaling in tubular cells. Indeed, mice expressing a non-secreted YBX1 variant specifically in podocytes (Ybx1PodK2A mice) phenocopied Ybx1ΔPod mice, demonstrating a tubular-protective effect of YBX1 secreted from podocytes. Lipopolysaccharide-induced tubular injury was aggravated in Ybx1ΔPod and Ybx1PodK2A mice, indicating a pathophysiological relevance of this glomerular-tubular crosstalk. Thus, our data show that YBX1 is physiologically secreted from podocytes, thereby negatively modulating sterile inflammation in the tubular compartment, apparently by binding to and inhibiting tubular TLR4 signaling. Hence, we have uncovered an YBX1-dependent molecular mechanism of glomerular-tubular crosstalk.
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Affiliation(s)
- Rajiv Rana
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Jayakumar Manoharan
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Ahmed Elwakiel
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Silke Zimmermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Jonathan A Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Dheerendra Gupta
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Moh'd Mohanad Al-Dabet
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany; Department of Medical Laboratories, Faculty of Health Sciences, American University of Madaba, Amman, Jordan
| | - Ihsan Gadi
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Jörg Fallmann
- Bioinformatics Group, Department of Computer Science and Interdisciplinary Centre for Bioinformatics, Leipzig University, Leipzig, Germany
| | - Kunal Singh
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Anubhuti Gupta
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Ronald Biemann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Bekas Alo
- Institute for Drug Discovery, Faculty of Medicine, Leipzig University, Leipzig, Germany
| | - Paul Kluge
- Institute for Drug Discovery, Faculty of Medicine, Leipzig University, Leipzig, Germany
| | - Ravindra Garde
- Institute for Drug Discovery, Faculty of Medicine, Leipzig University, Leipzig, Germany
| | - Christina Lamers
- Institute for Drug Discovery, Faculty of Medicine, Leipzig University, Leipzig, Germany
| | - Khurrum Shahzad
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Georg Künze
- Institute for Drug Discovery, Faculty of Medicine, Leipzig University, Leipzig, Germany; Center for Scalable Data Analytics and Artificial Intelligence, Leipzig University, Leipzig, Germany
| | - Shrey Kohli
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany
| | - Peter R Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig, Germany.
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2
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Chen Y, Jiang Z, Yang Y, Zhang C, Liu H, Wan J. The functions and mechanisms of post-translational modification in protein regulators of RNA methylation: Current status and future perspectives. Int J Biol Macromol 2023; 253:126773. [PMID: 37690652 DOI: 10.1016/j.ijbiomac.2023.126773] [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: 06/10/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/12/2023]
Abstract
RNA methylation, an epigenetic modification that does not alter gene sequence, may be important to diverse biological processes. Protein regulators of RNA methylation include "writers," "erasers," and "readers," which respectively deposit, remove, and recognize methylated RNA. RNA methylation, particularly N6-methyladenosine (m6A), 5-methylcytosine (m5C), N3-methylcytosine (m3C), N1-methyladenosine (m1A) and N7-methylguanosine (m7G), has been suggested as disease therapeutic targets. Despite advances in the structure and pharmacology of RNA methylation regulators that have improved drug discovery, regulating these proteins by various post-translational modifications (PTMs) has received little attention. PTM modifies protein structure and function, affecting all aspects of normal biology and pathogenesis, including immunology, cell differentiation, DNA damage repair, and tumors. It is becoming evident that RNA methylation regulators are also regulated by diverse PTMs. PTM of RNA methylation regulators induces their covalent linkage to new functional groups, hence modifying their activity and function. Mass spectrometry has identified many PTMs on protein regulators of RNA methylation. In this review, we describe the functions and PTM of protein regulators of RNA methylation and summarize the recent advances in the regulatory mode of human disease and its underlying mechanisms.
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Affiliation(s)
- Youming Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zuli Jiang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Ying Yang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chenxing Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hongyang Liu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
| | - Junhu Wan
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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3
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Bernhardt A, Krause A, Reichardt C, Steffen H, Isermann B, Völker U, Hammer E, Geffers R, Philipsen L, Dhjamandi K, Ahmad S, Brandt S, Lindquist JA, Mertens PR. Excessive sodium chloride ingestion promotes inflammation and kidney fibrosis in aging mice. Am J Physiol Cell Physiol 2023; 325:C456-C470. [PMID: 37399499 DOI: 10.1152/ajpcell.00230.2023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 06/21/2023] [Indexed: 07/05/2023]
Abstract
In aging kidneys, a decline of function resulting from extracellular matrix (ECM) deposition and organ fibrosis is regarded as "physiological." Whether a direct link between high salt intake and fibrosis in aging kidney exists autonomously from arterial hypertension is unclear. This study explores kidney intrinsic changes (inflammation, ECM derangement) induced by a high-salt diet (HSD) in a murine model lacking arterial hypertension. The contribution of cold shock Y-box binding protein (YB-1) as a key orchestrator of organ fibrosis to the observed differences is determined by comparison with a knockout strain (Ybx1ΔRosaERT+TX). Comparisons of tissue from mice fed with normal-salt diet (NSD, standard chow) or high-salt diet (HSD, 4% NaCl in chow; 1% NaCl in water) for up to 16 mo revealed that with HSD tubular cell numbers decrease and tubulointerstitial scarring [periodic acid-Schiff (PAS), Masson's trichrome, Sirius red staining] prevails. In Ybx1ΔRosaERT+TX animals tubular cell damage, a loss of cell contacts with profound tubulointerstitial alterations, and tubular cell senescence was seen. A distinct tubulointerstitial distribution of fibrinogen, collagen type VI, and tenascin-C was detected under HSD, transcriptome analyses determined patterns of matrisome regulation. Temporal increase of immune cell infiltration was seen under HSD of wild type, but not Ybx1ΔRosaERT+TX animals. In vitro Ybx1ΔRosaERT+TX bone marrow-derived macrophages exhibited a defect in polarization (IL-4/IL-13) and abrogated response to sodium chloride. Taken together, HSD promotes progressive kidney fibrosis with premature cell aging, ECM deposition, and immune cell recruitment that is exacerbated in Ybx1ΔRosaERT+TX animals.NEW & NOTEWORTHY Short-term experimental studies link excessive sodium ingestion with extracellular matrix accumulation and inflammatory cell recruitment, yet long-term data are scarce. Our findings with a high-salt diet over 16 mo in aging mice pinpoints to a decisive tipping point after 12 mo with tubular stress response, skewed matrisome transcriptome, and immune cell infiltration. Cell senescence was aggravated in knockout animals for cold shock Y-box binding protein (YB-1), suggesting a novel protective protein function.
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Affiliation(s)
- Anja Bernhardt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Anna Krause
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Charlotte Reichardt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Hannes Steffen
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig University, Leipzig, Germany
| | - Uwe Völker
- Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Elke Hammer
- Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Robert Geffers
- Genome Analytics Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Lars Philipsen
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, Magdeburg, Germany
| | - Kristin Dhjamandi
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Sohail Ahmad
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Jonathan A Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
| | - Peter R Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, Magdeburg, Germany
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4
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Wang J, Liu X, Gu Y, Gao Y, Jankowski V, Was N, Leitz A, Reiss LK, Shi Y, Cai J, Fang Y, Song N, Zhao S, Floege J, Ostendorf T, Ding X, Raffetseder U. DNA binding protein YB-1 is a part of the neutrophil extracellular trap mediation of kidney damage and cross-organ effects. Kidney Int 2023; 104:124-138. [PMID: 36963487 DOI: 10.1016/j.kint.2023.02.032] [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: 11/09/2022] [Revised: 02/10/2023] [Accepted: 02/27/2023] [Indexed: 03/26/2023]
Abstract
Open-heart surgery is associated with high morbidity, with acute kidney injury (AKI) being one of the most commonly observed postoperative complications. Following open-heart surgery, in an observational study we found significantly higher numbers of blood neutrophils in a group of 13 patients with AKI compared to 25 patients without AKI (AKI: 12.9±5.4 ×109 cells/L; non-AKI: 10.1±2. 9 ×109 cells/L). Elevated serum levels of neutrophil extracellular trap (NETs) components, such as dsDNA, histone 3, and DNA binding protein Y-box protein (YB)-1, were found within the first 24 hours in patients who later developed AKI. We could demonstrate that NET formation and hypoxia triggered the release of YB-1, which was subsequently shown to act as a mediator of kidney tubular damage. Experimentally, in two models of AKI mimicking kidney hypoperfusion during cardiac surgery (bilateral ischemia/reperfusion (I/R) and systemic lipopolysaccharide (LPS) administration), a neutralizing YB-1 antibody was administered to mice. In both models, prophylactic YB-1 antibody administration significantly reduced the tubular damage (damage score range 1-4, the LPS model: non-specific IgG control, 0.92±0.23; anti-YB-1 0.65±0.18; and in the I/R model: non-specific IgG control 2.42±0.23; anti-YB-1 1.86±0.44). Even in a therapeutic, delayed treatment model, antagonism of YB-1 ameliorated AKI (damage score, non-specific IgG control 3.03±0.31; anti-YB-1 2.58±0.18). Thus, blocking extracellular YB-1 reduced the effects induced by hypoxia and NET formation in the kidney and significantly limited AKI, suggesting that YB-1 is part of the NET formation process and an integral mediator of cross-organ effects.
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Affiliation(s)
- Jialin Wang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Xiyang Liu
- Department of Nephrology and Clinical Immunology, University Hospital, Rhine-Westphalia Technical University (RWTH)-Aachen, Aachen, Germany
| | - Yulu Gu
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Yingying Gao
- Department of Nephrology and Clinical Immunology, University Hospital, Rhine-Westphalia Technical University (RWTH)-Aachen, Aachen, Germany
| | - Vera Jankowski
- Institute of Molecular Cardiovascular Research, RWTH, Aachen University, Aachen, Germany
| | - Nina Was
- Theodor-Boveri-Institute/Biocenter, Developmental Biochemistry, Wuerzburg University, Wuerzburg, Germany
| | - Anna Leitz
- Department of Nephrology and Clinical Immunology, University Hospital, Rhine-Westphalia Technical University (RWTH)-Aachen, Aachen, Germany
| | - Lucy K Reiss
- Institute of Pharmacology and Toxicology, Medical Faculty, RWTH, Aachen University, Germany
| | - Yiqin Shi
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Jieru Cai
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Yi Fang
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Nana Song
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Shuan Zhao
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital, Rhine-Westphalia Technical University (RWTH)-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital, Rhine-Westphalia Technical University (RWTH)-Aachen, Aachen, Germany
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China.
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital, Rhine-Westphalia Technical University (RWTH)-Aachen, Aachen, Germany.
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5
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Zhang S, Pyne S, Pietrzak S, Halberg S, McCalla SG, Siahpirani AF, Sridharan R, Roy S. Inference of cell type-specific gene regulatory networks on cell lineages from single cell omic datasets. Nat Commun 2023; 14:3064. [PMID: 37244909 PMCID: PMC10224950 DOI: 10.1038/s41467-023-38637-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 05/10/2023] [Indexed: 05/29/2023] Open
Abstract
Cell type-specific gene expression patterns are outputs of transcriptional gene regulatory networks (GRNs) that connect transcription factors and signaling proteins to target genes. Single-cell technologies such as single cell RNA-sequencing (scRNA-seq) and single cell Assay for Transposase-Accessible Chromatin using sequencing (scATAC-seq), can examine cell-type specific gene regulation at unprecedented detail. However, current approaches to infer cell type-specific GRNs are limited in their ability to integrate scRNA-seq and scATAC-seq measurements and to model network dynamics on a cell lineage. To address this challenge, we have developed single-cell Multi-Task Network Inference (scMTNI), a multi-task learning framework to infer the GRN for each cell type on a lineage from scRNA-seq and scATAC-seq data. Using simulated and real datasets, we show that scMTNI is a broadly applicable framework for linear and branching lineages that accurately infers GRN dynamics and identifies key regulators of fate transitions for diverse processes such as cellular reprogramming and differentiation.
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Affiliation(s)
- Shilu Zhang
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - Saptarshi Pyne
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - Stefan Pietrzak
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - Spencer Halberg
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, USA
| | - Sunnie Grace McCalla
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Alireza Fotuhi Siahpirani
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Bioinformatics, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Rupa Sridharan
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison, Madison, WI, USA
| | - Sushmita Roy
- Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA.
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, USA.
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6
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Tang Y, Li Z, Yang H, Yang Y, Geng C, Liu B, Zhang T, Liu S, Xue Y, Zhang H, Wang J, Zhao H. YB1 dephosphorylation attenuates atherosclerosis by promoting CCL2 mRNA decay. Front Cardiovasc Med 2022; 9:945557. [PMID: 35990936 PMCID: PMC9386362 DOI: 10.3389/fcvm.2022.945557] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/14/2022] [Indexed: 11/24/2022] Open
Abstract
Chronic inflammation is a key pathological process in atherosclerosis. RNA binding proteins (RBPs) have been reported to play an important role in atherosclerotic plaque formation, and they could regulate the expression of inflammatory factors by phosphorylation modification. Y-box binding protein 1 (YB1) is an RBP that has participated in many inflammatory diseases. Here, we found an increased expression of phosphorylated YB1 (pYB1) in atherosclerotic plaques and demonstrated that YB1 dephosphorylation reduced lipid accumulation and lesion area in the aorta in vivo. Additionally, we found that inflammatory cytokines were downregulated in the presence of YB1 dephosphorylation, particularly CCL2, which participates in the pathogenesis of atherosclerosis. Furthermore, we demonstrated that CCL2 mRNA rapid degradation was mediated by the glucocorticoid receptor-mediated mRNA decay (GMD) process during YB1 dephosphorylation, which resulted in the downregulation of CCL2 expression. In conclusion, YB1 phosphorylation affects the development of atherosclerosis through modulating inflammation, and targeting YB1 phosphorylation could be a potential strategy for the treatment of atherosclerosis by anti-inflammation.
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Affiliation(s)
- Yaqin Tang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhiwei Li
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongqin Yang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Yang Yang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Chi Geng
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Bin Liu
- Jilin Zhongtai Biotechnology Co., Ltd, Jilin, China
| | - Tiantian Zhang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Siyang Liu
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Yunfei Xue
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongkai Zhang
- The Pathology Department, Beijing Hospital of Traditional Chinese Medicine, The Capital Medical University, Beijing, China
- Hongkai Zhang
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
- Jing Wang
| | - Hongmei Zhao
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Peking Union Medical College, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Hongmei Zhao
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7
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Zhou Y, Li XH, Xue WL, Jin S, Li MY, Zhang CC, Yu B, Zhu L, Liang K, Chen Y, Tao BB, Zhu YZ, Wang MJ, Zhu YC. YB-1 Recruits Drosha to Promote Splicing of pri-miR-192 to Mediate the Proangiogenic Effects of H 2S. Antioxid Redox Signal 2022; 36:760-783. [PMID: 35044231 DOI: 10.1089/ars.2021.0105] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Aims: The genes targeted by miRNAs have been well studied. However, little is known about the feedback mechanisms to control the biosynthesis of miRNAs that are essential for the miRNA feedback networks in the cells. In this present study, we aimed at examining how hydrogen sulfide (H2S) promotes angiogenesis by regulating miR-192 biosynthesis. Results: H2S promoted in vitro angiogenesis and angiogenesis in Matrigel plugs embedded in mice by upregulating miR-192. Knockdown of the H2S-generating enzyme cystathionine γ-lyase (CSE) suppressed in vitro angiogenesis, and this suppression was rescued by exogenous H2S donor NaHS. Plakophilin 4 (PKP4) served as a target gene of miR-192. H2S up-regulated miR-192 via the VEGFR2/Akt pathway to promote the splicing of primary miR-192 (pri-miR-192), and it resulted in an increase in both the precursor- and mature forms of miR-192. H2S translocated YB-1 into the nuclei to recruit Drosha to bind with pri-miR-192 and promoted its splicing. NaHS treatment promoted angiogenesis in the hindlimb ischemia mouse model and the skin-wound-healing model in diabetic mice, with upregulated miR-192 and downregulated PKP4 on NaHS treatment. In human atherosclerotic plaques, miR-192 levels were positively correlated with the plasma H2S concentrations. Innovation and Conclusion: Our data reveal a role of YB-1 in recruiting Drosha to splice pri-miR-192 to mediate the proangiogenic effect of H2S. CSE/H2S/YB-1/Drosha/miR-192 is a potential therapeutic target pathway for treating diseases, including organ ischemia and diabetic complications. Antioxid. Redox Signal. 36, 760-783. The Clinical Trial Registration number is 2016-224.
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Affiliation(s)
- Yu Zhou
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
| | - Xing-Hui Li
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China.,Shanghai Cao Yang NO.2 High School, Shanghai, China
| | - Wen-Long Xue
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
| | - Sheng Jin
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China.,Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Meng-Yao Li
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
| | - Cai-Cai Zhang
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China.,Department of Physiology, Hainan Medical College, Haikou, China
| | - Bo Yu
- Department of Vascular Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Lei Zhu
- Department of Vascular Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Kun Liang
- Department of Vascular Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Ying Chen
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
| | - Bei-Bei Tao
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
| | - Yi-Zhun Zhu
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China.,State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Avenida WaiLong, Taipa, China
| | - Ming-Jie Wang
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
| | - Yi-Chun Zhu
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai, China
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8
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Sogorina EM, Kim ER, Sorokin AV, Lyabin DN, Ovchinnikov LP, Mordovkina DA, Eliseeva IA. YB-1 Phosphorylation at Serine 209 Inhibits Its Nuclear Translocation. Int J Mol Sci 2021; 23:ijms23010428. [PMID: 35008856 PMCID: PMC8745666 DOI: 10.3390/ijms23010428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/09/2021] [Accepted: 12/18/2021] [Indexed: 01/18/2023] Open
Abstract
YB-1 is a multifunctional DNA- and RNA-binding protein involved in cell proliferation, differentiation, and migration. YB-1 is a predominantly cytoplasmic protein that is transported to the nucleus in certain conditions, including DNA-damaging stress, transcription inhibition, and viral infection. In tumors, YB-1 nuclear localization correlates with high aggressiveness, multidrug resistance, and a poor prognosis. It is known that posttranslational modifications can regulate the nuclear translocation of YB-1. In particular, well-studied phosphorylation at serine 102 (S102) activates YB-1 nuclear import. Here, we report that Akt kinase phosphorylates YB-1 in vitro at serine 209 (S209), which is located in the vicinity of the YB-1 nuclear localization signal. Using phosphomimetic substitutions, we showed that S209 phosphorylation inhibits YB-1 nuclear translocation and prevents p-S102-mediated YB-1 nuclear import.
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Affiliation(s)
- Ekaterina M. Sogorina
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
| | - Ekaterina R. Kim
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Alexey V. Sorokin
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
- Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Dmitry N. Lyabin
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
| | - Lev P. Ovchinnikov
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
| | - Daria A. Mordovkina
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
- Correspondence: (D.A.M.); (I.A.E.)
| | - Irina A. Eliseeva
- Group of Protein Biosynthesis Regulation, Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Russia; (E.M.S.); (E.R.K.); (A.V.S.); (D.N.L.)
- Correspondence: (D.A.M.); (I.A.E.)
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9
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Pham TP, Bink DI, Stanicek L, van Bergen A, van Leeuwen E, Tran Y, Matic L, Hedin U, Wittig I, Dimmeler S, Boon RA. Long Non-coding RNA Aerrie Controls DNA Damage Repair via YBX1 to Maintain Endothelial Cell Function. Front Cell Dev Biol 2021; 8:619079. [PMID: 33505972 PMCID: PMC7829583 DOI: 10.3389/fcell.2020.619079] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/07/2020] [Indexed: 12/20/2022] Open
Abstract
Aging is accompanied by many physiological changes. These changes can progressively lead to many types of cardiovascular diseases. During this process blood vessels lose their ability to maintain vascular homeostasis, ultimately resulting in hypertension, stroke, or myocardial infarction. Increase in DNA damage is one of the hallmarks of aging and can be repaired by the DNA signaling and repair system. In our study we show that long non-coding RNA Aerrie (linc01013) contributes to the DNA signaling and repair mechanism. Silencing of Aerrie in endothelial cells impairs angiogenesis, migration, and barrier function. Aerrie associates with YBX1 and together they act as important factors in DNA damage signaling and repair. This study identifies Aerrie as a novel factor in genomic stability and as a binding partner of YBX1 in responding to DNA damage.
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Affiliation(s)
- Tan Phát Pham
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Diewertje I Bink
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Laura Stanicek
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Institute of Cardiovascular Regeneration, Goethe University, Frankfurt, Germany
| | - Anke van Bergen
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Esmee van Leeuwen
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Yvonne Tran
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Ljubica Matic
- Vascular Surgery Division, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Ulf Hedin
- Vascular Surgery Division, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Ilka Wittig
- Institute of Cardiovascular Regeneration, Goethe University, Frankfurt, Germany
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Goethe University, Frankfurt, Germany.,German Center for Cardiovascular Research DZHK, Partner Site Frankfurt Rhine-Main, Berlin, Germany
| | - Reinier A Boon
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Institute of Cardiovascular Regeneration, Goethe University, Frankfurt, Germany.,German Center for Cardiovascular Research DZHK, Partner Site Frankfurt Rhine-Main, Berlin, Germany
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10
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Liu J, Qu L, Wan C, Xiao M, Ni W, Jiang F, Fan Y, Lu C, Ni R. A novel β2-AR/YB-1/β-catenin axis mediates chronic stress-associated metastasis in hepatocellular carcinoma. Oncogenesis 2020; 9:84. [PMID: 32973139 PMCID: PMC7515897 DOI: 10.1038/s41389-020-00268-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 08/14/2020] [Accepted: 09/04/2020] [Indexed: 12/28/2022] Open
Abstract
β-Adrenergic receptor (β-AR) signalling is strongly associated with tumour progression by the coupling of β-ARs with either a G protein or β-arrestin; however, the related mechanism underlying hepatocellular carcinoma (HCC) metastasis is not clear. Here, we reveal that the transcription factor Y-box binding protein 1 (YB-1) interacts with β2-adrenergic receptor (β2-AR) following stimulation with the agonist isoproterenol (ISO). Clinicopathological analysis demonstrated that β2-AR is significantly correlated with YB-1, which favours the progression of HCC. The binding of YB-1 with β2-AR resulted in YB-1 phosphorylation at serine 102 (S102) via the β-arrestin-1-dependent activation of the PI3K/AKT pathway, followed by the translocation of YB-1 to the nucleus to carry out its tumour-related function. β2-AR-mediated activation of YB-1 facilitated epithelial-to-mesenchymal transition (EMT) and HCC metastasis. The interference of YB-1 expression significantly attenuated liver tumour metastasis induced by chronic stress. Analysis of the transcriptional profile and chromatin immunoprecipitation (ChIP) identified β-catenin as a crucial target of YB-1. Our results unveiled a novel β2-AR-mediated regulatory axis in HCC metastasis that might be helpful for the development of HCC therapeutics.
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Affiliation(s)
- Jinxia Liu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Lishuai Qu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Chunhua Wan
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, China
| | - Mingbing Xiao
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Wenkai Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Feng Jiang
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China
| | - Yihui Fan
- Department of Immunology, School of Medicine, Nantong University, Nantong, China
| | - Cuihua Lu
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China.
| | - Runzhou Ni
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong, China.
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11
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Y-Box Binding Proteins in mRNP Assembly, Translation, and Stability Control. Biomolecules 2020; 10:biom10040591. [PMID: 32290447 PMCID: PMC7226217 DOI: 10.3390/biom10040591] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/06/2020] [Accepted: 04/10/2020] [Indexed: 12/12/2022] Open
Abstract
Y-box binding proteins (YB proteins) are DNA/RNA-binding proteins belonging to a large family of proteins with the cold shock domain. Functionally, these proteins are known to be the most diverse, although the literature hardly offers any molecular mechanisms governing their activities in the cell, tissue, or the whole organism. This review describes the involvement of YB proteins in RNA-dependent processes, such as mRNA packaging into mRNPs, mRNA translation, and mRNA stabilization. In addition, recent data on the structural peculiarities of YB proteins underlying their interactions with nucleic acids are discussed.
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12
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Budkina KS, Zlobin NE, Kononova SV, Ovchinnikov LP, Babakov AV. Cold Shock Domain Proteins: Structure and Interaction with Nucleic Acids. BIOCHEMISTRY (MOSCOW) 2020; 85:S1-S19. [DOI: 10.1134/s0006297920140011] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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13
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Brandt S, Ewert L, Scurt FG, Reichardt C, Lindquist JA, Gorny X, Isermann B, Mertens PR. Altered monocytic phenotypes are linked with systemic inflammation and may be linked to mortality in dialysis patients. Sci Rep 2019; 9:19103. [PMID: 31836803 PMCID: PMC6911068 DOI: 10.1038/s41598-019-55592-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 11/14/2019] [Indexed: 12/19/2022] Open
Abstract
The major causes for increased morbidity and mortality among chronic kidney disease patients are cardiovascular diseases and infection. A causal link between an activated immune system and aggravated atherosclerosis has been postulated that skews the system towards inflammatory responses. Previously, we demonstrated a positive association of pro-inflammatory cytokines with monocytic Y-box binding protein-1 (YB-1) expression and vessel wall infiltration in hemodialysis patients. Here, we question whether the responsiveness and cytokine repertoire of monocytes is altered by pre-activation and how this correlates with survival. EDTA whole blood from hemodialysis patients (n = 45) and healthy controls (n = 34) was collected and leukocytes challenged with LPS. The distribution of monocyte subsets, YB-1acetyl content, and serum cytokine levels were determined. Compared to controls, dialysis patients have fewer classical (Mo1) and more intermediate (Mo2) and non-classical (Mo3) monocytes. In response to LPS, the Mo2 subset significantly increases (p < 0.001) in control subjects, but not in hemodialysis patients; increased CD86 expression indicates a positive response to LPS. Based on the changes within Mo2, subjects could be classified as responders or non-responders: 60% non-responders were seen in the dialysis cohort versus only 35% among healthy controls. YB-1 acetylation is higher in dialysis patients, independent of LPS stimulation. In this small cohort with 72 months follow-up period intracellular YB-1acetyl levels, IL-6, uPAR, and IP10 correlated with excess mortality in the dialysis cohort. Changes in YB-1 acetylation and serum cytokines may, at a given time point, possibly predict the long-term outcome and thus provide a legacy effect in hemodialysis patients.
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Affiliation(s)
- Sabine Brandt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Lara Ewert
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Florian G Scurt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Charlotte Reichardt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Jonathan A Lindquist
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Xenia Gorny
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Berend Isermann
- Institute of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Peter R Mertens
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
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14
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Hermert D, Martin IV, Reiss LK, Liu X, Breitkopf DM, Reimer KC, Alidousty C, Rauen T, Floege J, Ostendorf T, Weiskirchen R, Raffetseder U. The nucleic acid binding protein YB-1-controlled expression of CXCL-1 modulates kidney damage in liver fibrosis. Kidney Int 2019; 97:741-752. [PMID: 32061437 DOI: 10.1016/j.kint.2019.10.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/29/2019] [Accepted: 10/17/2019] [Indexed: 12/28/2022]
Abstract
Acute kidney injury is a common complication of advanced liver disease and increased mortality of these patients. Here, we analyzed the role of Y-box protein-1 (YB-1), a nucleic acid binding protein, in the bile duct ligation model of liver fibrosis and monitored liver and subsequent kidney damage. Following bile duct ligation, both serum levels of liver enzymes and expression of hepatic extracellular matrix components such as type I collagen were significantly reduced in mice with half-maximal YB-1 expression (Yb1+/-) as compared to their wild-type littermates. By contrast, expression of the chemokine CXCL1 was significantly augmented in these Yb1+/- mice. YB-1 was identified as a potent transcriptional repressor of the Cxcl1 gene. Precision-cut kidney slices from Yb1+/- mice revealed higher expression of the CXCL1 receptor CXCR2 as well as enhanced responsivity to CXCL1 compared to those from wild-type mice. Increased CXCL1 content in Yb1+/- mice led to pronounced bile duct ligation-induced damage of the kidneys monitored as parameters of tubular epithelial injury and immune cell infiltration. Pharmacological blockade of CXCR2 as well as application of an inhibitory anti-CXCL1 antibody significantly mitigated early systemic effects on the kidneys following bile duct ligation whereas it had only a modest impact on hepatic inflammation and function. Thus, our analyses provide direct evidence that YB-1 crucially contributes to hepatic fibrosis and modulates liver-kidney crosstalk by maintaining tight control over chemokine CXCL1 expression.
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Affiliation(s)
- Daniela Hermert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ina V Martin
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Lucy K Reiss
- Institute of Pharmacology and Toxicology, Medical Faculty, RWTH-Aachen University, Aachen, Germany
| | - Xiyang Liu
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Daniel M Breitkopf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Katharina C Reimer
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | | | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), University Hospital RWTH-Aachen, Aachen, Germany
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany.
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15
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Breitkopf DM, Jankowski V, Ohl K, Hermann J, Hermert D, Tenbrock K, Liu X, Martin IV, Wang J, Groll F, Gröne E, Floege J, Ostendorf T, Rauen T, Raffetseder U. The YB-1:Notch-3 axis modulates immune cell responses and organ damage in systemic lupus erythematosus. Kidney Int 2019; 97:289-303. [PMID: 31882173 DOI: 10.1016/j.kint.2019.09.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 09/01/2019] [Accepted: 09/30/2019] [Indexed: 01/17/2023]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease and lupus nephritis is a major risk factor for morbidity and mortality. Notch-3 signaling induced by membrane-bound or soluble ligands such as YB-1 constitutes an evolutionarily conserved pathway that determines major decisions in cell fate. Mass spectrometry of extracellular YB-1 in sera from patients with SLE and lupus-prone mice revealed specific post-translational guanidinylation of two lysine residues within the highly conserved cold-shock domain of YB-1 (YB-1-G). These modifications highly correlated with SLE disease activity, especially in patients with lupus nephritis and resulted in enhanced activation of Notch-3 signaling in T lymphocytes. The importance of YB-1:Notch-3 interaction in T cells was further evidenced by increased interleukin (Il)10 expression following YB-1-G stimulation and detection of both, YB-1-G and Notch-3, in kidneys of MRL.lpr mice by mass spectrometry imaging. Notch-3 expression and activation was significantly up-regulated in kidneys of 20-week-old MRL.lpr mice. Notably, lupus-prone mice with constitutional Notch-3 depletion (B6.Faslpr/lprNotch3-/-) exhibited an aggravated lupus phenotype with significantly increased mortality, enlarged lymphoid organs and aggravated nephritis. Additionally, these mice displayed fewer regulatory T cells and reduced amounts of anti-inflammatory IL-10. Thus, our results indicate that the YB-1:Notch-3 axis exerts protective effects in SLE and that Notch-3 deficiency exacerbates the SLE phenotype.
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Affiliation(s)
- Daniel M Breitkopf
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Vera Jankowski
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Kim Ohl
- Department of Pediatrics, RWTH Aachen University, Aachen, Germany
| | - Juliane Hermann
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Daniela Hermert
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Klaus Tenbrock
- Department of Pediatrics, RWTH Aachen University, Aachen, Germany
| | - Xiyang Liu
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Ina V Martin
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Jialin Wang
- Department of Nephrology, Zhongshan Hospital Fudan University, Shanghai, China
| | - Fabian Groll
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Elisabeth Gröne
- Department of Cellular and Molecular Pathology, German Cancer Research Center, Heidelberg, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany.
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany.
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16
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Zhu X, Ye Y, Xu C, Gao C, Zhang Y, Zhou J, Lin W, Mao J. Protein phosphatase 2A modulates podocyte maturation and glomerular functional integrity in mice. Cell Commun Signal 2019; 17:91. [PMID: 31387591 PMCID: PMC6685276 DOI: 10.1186/s12964-019-0402-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/22/2019] [Indexed: 01/08/2023] Open
Abstract
Background Protein phosphorylation & dephosphorylation are ubiquitous cellular processes that allow for the nuanced and reversible regulation of protein activity. Protein phosphatase 2A (PP2A) is a multifunction phosphatase that is well expressed in all cell types of kidney during early renal development, though its functions in kidney remains to be elucidated. Methods PP2A conditional knock-out mice was generated with PP2A fl/fl mice that were crossed with Podocin-Cre mice. The phenotype of Pod-PP2A–KO mice (homozygous for the floxed PP2A allele with Podocin-Cre) and littermate PP2A fl/fl controls (homozygous for the PP2A allele but lacking Podocin-Cre) were further studied. Primary podocytes isolated from the Pod-PP2A-KO mice were cultured and they were then employed with sing label-free nano-LC − MS/MS technology on a Q-exactive followed by SIEVE processing to identify possible target molecular entities for the dephosphorylation effect of PP2A, in which Western blot and immunofluorescent staining were used to analyze further. Results Pod-PP2A–KO mice were developed with weight loss, growth retardation, proteinuria, glomerulopathy and foot process effacement, together with reduced expression of some slit diaphragm molecules and cytoskeleton rearrangement of podocytes. Y box protein 1 (YB-1) was identified to be the target molecule for dephosphorylation effect of PP2A. Furthermore, YB-1 phosphorylation was up-regulated in the Pod-PP2A–KO mice in contrast to the wild type controls, while total and un-phosphorylated YB-1 both was moderately down-regulated in podocytes from the Pod-PP2A-KO mice. Conclusion Our study revealed the important role of PP2A in regulating the development of foot processes and fully differentiated podocytes whereas fine-tuning of YB-1 via a post-translational modification by PP2A regulating its activity might be crucial for the functional integrity of podocytes and glomerular filtration barrier. Graphic abstract ![]()
Electronic supplementary material The online version of this article (10.1186/s12964-019-0402-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiujuan Zhu
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Yuhong Ye
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Chengxian Xu
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Cunji Gao
- Chronic Disease Research Institute, Department of Nutrition and Food Hygiene, Zhejiang University School of Public Health, Hangzhou, 310058, Zhejiang Province, People's Republic of China
| | - Yingying Zhang
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China
| | - Jing Zhou
- Harvard Center for Polycystic Kidney Disease Research and Renal Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA02115, USA
| | - Weiqiang Lin
- Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, 310058, Zhejiang Province, People's Republic of China.
| | - Jianhua Mao
- Department of Nephrology, The Children Hospital of Zhejiang University School of Medicine, #57 Zhugan Lane, Hangzhou, 310003, Zhejiang Province, People's Republic of China.
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17
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van Roeyen CRC, Martin IV, Drescher A, Schuett KA, Hermert D, Raffetseder U, Otten S, Buhl EM, Braun GS, Kuppe C, Liehn E, Boor P, Weiskirchen R, Eriksson U, Gross O, Eitner F, Floege J, Ostendorf T. Identification of platelet-derived growth factor C as a mediator of both renal fibrosis and hypertension. Kidney Int 2019; 95:1103-1119. [PMID: 30827511 DOI: 10.1016/j.kint.2018.11.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 11/15/2018] [Accepted: 11/21/2018] [Indexed: 02/06/2023]
Abstract
Platelet-derived growth factors (PDGF) have been implicated in kidney disease progression. We previously found that PDGF-C is upregulated at sites of renal fibrosis and that antagonism of PDGF-C reduces fibrosis in the unilateral ureteral obstruction model. We studied the role of PDGF-C in collagen 4A3-/- ("Alport") mice, a model of progressive renal fibrosis with greater relevance to human kidney disease. Alport mice were crossbred with PDGF-C-/- mice or administered a neutralizing PDGF-C antibody. Both PDGF-C deficiency and neutralization reduced serum creatinine and blood urea nitrogen levels and mitigated glomerular injury, renal fibrosis, and renal inflammation. Unexpectedly, systolic blood pressure was also reduced in both Alport and wild-type mice treated with a neutralizing PDGF-C antibody. Neutralization of PDGF-C reduced arterial wall thickness in the renal cortex of Alport mice. Aortic rings isolated from anti-PDGF-C-treated wildtype mice exhibited reduced tension and faster relaxation than those of untreated mice. In vitro, PDGF-C upregulated angiotensinogen in aortic tissue and in primary hepatocytes and induced nuclear factor κB (NFκB)/p65-binding to the angiotensinogen promoter in hepatocytes. Neutralization of PDGF-C suppressed transcript expression of angiotensinogen in Alport mice and angiotensin II receptor type 1 in Alport and wildtype mice. Finally, administration of neutralizing PDGF-C antibodies ameliorated angiotensin II-induced hypertension in healthy mice. Thus, in addition to its key role in mediating renal fibrosis, we identified PDGF-C as a mediator of hypertension via effects on renal vasculature and on the renin-angiotensin system. The contribution to both renal fibrosis and hypertension render PDGF-C an attractive target in progressive kidney disease.
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Affiliation(s)
- Claudia R C van Roeyen
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany.
| | - Ina V Martin
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Ana Drescher
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | | | - Daniela Hermert
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Ute Raffetseder
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Stephanie Otten
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Eva M Buhl
- Institute of Pathology, RWTH Aachen University, Aachen, Germany
| | - Gerald S Braun
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Christoph Kuppe
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Elisa Liehn
- Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Peter Boor
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany; Institute of Pathology, RWTH Aachen University, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry RWTH Aachen University, Aachen, Germany
| | - Ulf Eriksson
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Oliver Gross
- Division of Nephrology and Rheumatology, University Medicine Göttingen, Göttingen, Germany
| | - Frank Eitner
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany; Kidney Diseases Research, Bayer AG, Wuppertal, Germany
| | - Jürgen Floege
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
| | - Tammo Ostendorf
- Division of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Aachen, Germany
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18
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Lindquist JA, Mertens PR. Cold shock proteins: from cellular mechanisms to pathophysiology and disease. Cell Commun Signal 2018; 16:63. [PMID: 30257675 PMCID: PMC6158828 DOI: 10.1186/s12964-018-0274-6] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 09/13/2018] [Indexed: 12/21/2022] Open
Abstract
Cold shock proteins are multifunctional RNA/DNA binding proteins, characterized by the presence of one or more cold shock domains. In humans, the best characterized members of this family are denoted Y-box binding proteins, such as Y-box binding protein-1 (YB-1). Biological activities range from the regulation of transcription, splicing and translation, to the orchestration of exosomal RNA content. Indeed, the secretion of YB-1 from cells via exosomes has opened the door to further potent activities. Evidence links a skewed cold shock protein expression pattern with cancer and inflammatory diseases. In this review the evidence for a causative involvement of cold shock proteins in disease development and progression is summarized. Furthermore, the potential application of cold shock proteins for diagnostics and as targets for therapy is elucidated.
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Affiliation(s)
- Jonathan A Lindquist
- Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany
| | - Peter R Mertens
- Clinic for Nephrology and Hypertension, Diabetology and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany.
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19
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Cold shock Y-box binding protein-1 acetylation status in monocytes is associated with systemic inflammation and vascular damage. Atherosclerosis 2018; 278:156-165. [PMID: 30278358 DOI: 10.1016/j.atherosclerosis.2018.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/11/2018] [Accepted: 09/18/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIMS In dialysis patients, vascular morbidities are highly prevalent and linked to leukocyte extravasation, especially of polarized monocytes. Experimental data demonstrate that phenotypic changes in monocytes require Y-box binding protein-1 (YB-1) upregulation. METHODS We determined YB-1 expression in circulating and vessel-invading monocytes from healthy controls and dialysis patients to correlate results with intima plaque formation and systemic inflammation. RESULTS Compared to healthy subjects, dialysis patients have fewer classical and more intermediate and non-classical monocytes. Post-translationally modified YB-1 (lysine 301/304 acetylation) is detected at high levels in the nucleus of adherent and invading CD14+CD68+ monocytes from umbilical cord and atherosclerosis-prone vessels. The content of non-acetylated YB-1 is significantly decreased (p < 0.001), whereas acetylated YB-1 is correspondingly increased (p < 0.001) throughout all monocyte subpopulations, such that the overall content remains unchanged. CONCLUSIONS In dialysis patients the YB-1 acetylation status is higher with prevailing diabetes and intima plaque formation. Pro-inflammatory mediators TNFα, IL-6, uPAR, CCL2, M-CSF, progranulin, ANP, and midkine, as well as anti-inflammatory IL-10 are significantly increased in dialysis patients, emphasizing a systemic inflammatory milieu. Strong positive correlations of monocytic YB-1 content are seen with ANP, IP-10, IL-6, and IL-10 serum levels. This is the first study demonstrating an association of cold shock protein YB-1 expression with inflammation in hemodialysis patients.
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20
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YB-1 increases glomerular, but decreases interstitial fibrosis in CNI-induced nephropathy. Clin Immunol 2018; 194:67-74. [DOI: 10.1016/j.clim.2018.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/02/2018] [Indexed: 12/14/2022]
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21
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Poplutz M, Levikova M, Lüscher-Firzlaff J, Lesina M, Algül H, Lüscher B, Huber M. Endotoxin tolerance in mast cells, its consequences for IgE-mediated signalling, and the effects of BCL3 deficiency. Sci Rep 2017; 7:4534. [PMID: 28674400 PMCID: PMC5495797 DOI: 10.1038/s41598-017-04890-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 05/30/2017] [Indexed: 11/30/2022] Open
Abstract
Stimulation with lipopolysaccharide (LPS; endotoxin) not only causes rapid production of proinflammatory cytokines, but also induces a state of LPS hypo-responsiveness to a second LPS stimulation (endotoxin tolerance (ET)). Murine bone marrow-derived MCs (BMMCs) and peritoneal MCs (PMCs) developed ET as shown by an abrogated production of Il6/Tnf RNAs and IL-6/TNF-α proteins. In naive BMMCs, LPS stimulation induced a transient decline in the trimethylation of lysine 9 of the core histone H3 (H3K9me3), a suppressive chromatin mark, at the Il6/Tnf promoters, which correlated with p50(NFκB) and p65(NFκB) binding. Both demethylation and NFκB binding were abrogated in tolerant cells. In addition, cytosolic NFκB activation was suppressed in tolerant BMMCs. Intriguingly, antigen stimulation of naive and tolerant MCs induced comparable production of Il6/Tnf and IL-6/TNF-α, although ET also affected antigen-triggered activation of NFκB; pharmacological analysis indicated the importance of Ca2+-dependent transcription in this respect. In macrophages, the IκB member BCL3 is induced by LPS and known to be involved in ET, which was not corroborated comparing wild-type and Bcl3-deficient BMMCs. Interestingly, Bcl3-deficient PMCs produce markedly increased amounts of IL-6/TNF-α after LPS stimulation. Collectively, ET in MCs is BCL3-independent, however, in PMCs, BCL3 negatively regulates immediate LPS-induced cytokine production and quantitatively affects ET.
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Affiliation(s)
- Magdalena Poplutz
- Institute of Biochemistry and Molecular Immunology, Medical School, RWTH Aachen University, Aachen, Germany
| | - Maryna Levikova
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University, Aachen, Germany
- Institute of Molecular Cancer Research, University of Zürich, Zürich, Switzerland
| | - Juliane Lüscher-Firzlaff
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University, Aachen, Germany
| | - Marina Lesina
- Molecular Gastroenterology, Medical Clinic II, University Hospital Klinikum Rechts der Isar, TU Munich, Munich, Germany
| | - Hana Algül
- Molecular Gastroenterology, Medical Clinic II, University Hospital Klinikum Rechts der Isar, TU Munich, Munich, Germany
| | - Bernhard Lüscher
- Institute of Biochemistry and Molecular Biology, Medical School, RWTH Aachen University, Aachen, Germany
| | - Michael Huber
- Institute of Biochemistry and Molecular Immunology, Medical School, RWTH Aachen University, Aachen, Germany.
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22
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Wang J, Djudjaj S, Gibbert L, Lennartz V, Breitkopf DM, Rauen T, Hermert D, Martin IV, Boor P, Braun GS, Floege J, Ostendorf T, Raffetseder U. YB-1 orchestrates onset and resolution of renal inflammation via IL10 gene regulation. J Cell Mol Med 2017; 21:3494-3505. [PMID: 28664613 PMCID: PMC5706504 DOI: 10.1111/jcmm.13260] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/28/2017] [Indexed: 12/24/2022] Open
Abstract
The Y‐box‐binding protein (YB)‐1 plays a non‐redundant role in both systemic and local inflammatory response. We analysed YB‐1‐mediated expression of the immune regulatory cytokine IL‐10 in both LPS and sterile inflammation induced by unilateral renal ischaemia–reperfusion (I/R) and found an important role of YB‐1 not only in the onset but also in the resolution of inflammation in kidneys. Within a decisive cis‐regulatory region of the IL10 gene locus, the fourth intron, we identified and characterized an operative YB‐1 binding site via gel shift experiments and reporter assays in immune and different renal cells. In vivo, YB‐1 phosphorylated at serine 102 localized to the fourth intron, which was paralleled by enhanced IL‐10 mRNA expression in mice following LPS challenge and in I/R. Mice with half‐maximal expression of YB‐1 (Yb1+/−) had diminished IL‐10 expression upon LPS challenge. In I/R, Yb1+/− mice exhibited ameliorated kidney injury/inflammation in the early‐phase (days 1 and 5), however showed aggravated long‐term damage (day 21) with increased expression of IL‐10 and other known mediators of renal injury and inflammation. In conclusion, these data support the notion that there are context‐specific decisions concerning YB‐1 function and that a fine‐tuning of YB‐1, for example, via a post‐translational modification regulates its activity and/or localization that is crucial for systemic processes such as inflammation.
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Affiliation(s)
- Jialin Wang
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Sonja Djudjaj
- Institute of Pathology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Lydia Gibbert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Vera Lennartz
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Daniel M Breitkopf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Daniela Hermert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ina V Martin
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Peter Boor
- Institute of Pathology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Gerald S Braun
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
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23
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Inflammatory cell infiltration and resolution of kidney inflammation is orchestrated by the cold-shock protein Y-box binding protein-1. Kidney Int 2017; 92:1157-1177. [PMID: 28610763 DOI: 10.1016/j.kint.2017.03.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 03/01/2017] [Accepted: 03/23/2017] [Indexed: 11/22/2022]
Abstract
Tubular cells recruit monocytic cells in inflammatory tubulointerstitial kidney diseases. The cell-cell communication that establishes pro- or anti-inflammatory activities is mainly influenced by cytokines, reactive oxygen species, nitric oxide, and phagocytosis. Key proteins orchestrating these processes such as cold-shock proteins linked with chemoattraction and cell maturation have been identified. The prototypic member of the cold-shock protein family, Y-box binding protein (YB)-1, governs specific phenotypic alterations in monocytic cells and was explored in the present study. Following tubulointerstitial injury by unilateral ureteral obstruction, increased inflammatory cell infiltration and tubular cell CCL5 expression was found in conditional Ybx1 knockout animals with specific depletion in monocytes/macrophages (YB-1ΔLysM). Furthermore, YB-1ΔLysM mice exhibit enhanced tissue damage, myofibroblast activation, and fibrosis. To investigate relevant molecular mechanism(s), we utilized bone marrow-derived macrophage cultures and found that YB-1-deficient macrophages display defects in cell polarization and function, including reduced proliferation and nitric oxide production, loss of phagocytic activity, and failure to upregulate IL-10 and CCL5 expression in response to inflammatory stimuli. Co-culture with primary tubular cells confirmed these findings. Thus, monocytic YB-1 has prominent and distinct roles for cellular feed-forward crosstalk and resolution of inflammatory processes by its ability to regulate cell differentiation and cytokine/chemokine synthesis.
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24
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Xiong P, Zhang J, Xu D, Zhu J, Li W, Liu J, Liu F. Positive feedback loop of YB-1 interacting with Smad2 promotes liver fibrosis. Biochem Biophys Res Commun 2017; 484:753-761. [PMID: 28153731 DOI: 10.1016/j.bbrc.2017.01.148] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 01/26/2017] [Indexed: 12/15/2022]
Abstract
Y-box binding protein (YB-1), known as a multifunctional cellular protein in various biological processes, was recently reported to be associated with liver fibrosis. The critical role of TGF-β/Smad signaling pathway in stimulating the transcription of fibrotic genes in fibroblasts have already been identified, however, whether and how YB-1 modulated liver fibrosis via TGF-β/Smad signaling pathway remains largely unknown. In our previous study, we proved that ectopic TGF-β was associated with YB-1 expression. Herein, by combining in vitro experiments in LX2 human hepatic stellate cells and in vivo studies by building CCl4 based mice liver fibrosis model, we showed that YB-1 and p-YB-1 were upregulated in liver fibrosis tissue, and YB-1 promoted the deposition of excess extracellular matrix. Mechanistically, Smad2, a key member in TGF-β signaling pathway, acted as a transcription factor that triggered YB-1 promoter, while on the other hand, p-YB-1 stabilized Smad2 by attenuating its ubiquitination. Knockdown of Smad2 could reduce YB-1 expression, which in turn shorter the half time of Smad2. Furthermore, the serine102 residue of YB-1 both affected its binding and stabilizing activity to Smad2. These finding demonstrated that YB-1 and Smad2 played as a positive feedback loop in promoting liver fibrosis. In conclusion, TGF-β signaling pathway may influence liver fibrosis by incorporating with YB-1, indicating that YB-1 could be a potential target for therapies against liver fibrosis.
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Affiliation(s)
- Panpan Xiong
- Department of Digestive Diseases, Shanghai East Hospital, Tongji University, Shanghai 200120, PR China
| | - Jun Zhang
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai 200040, PR China
| | - Diannan Xu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai 200040, PR China
| | - Jie Zhu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai 200040, PR China
| | - Wenshuai Li
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai 200040, PR China
| | - Jie Liu
- Department of Digestive Diseases, Huashan Hospital, Fudan University, Shanghai 200040, PR China.
| | - Fei Liu
- Department of Digestive Diseases, Shanghai East Hospital, Tongji University, Shanghai 200120, PR China.
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25
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Rauen T, Frye BC, Wang J, Raffetseder U, Alidousty C, En-Nia A, Floege J, Mertens PR. Cold shock protein YB-1 is involved in hypoxia-dependent gene transcription. Biochem Biophys Res Commun 2016; 478:982-7. [DOI: 10.1016/j.bbrc.2016.08.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 08/10/2016] [Indexed: 01/23/2023]
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26
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Wang J, Gibbert L, Djudjaj S, Alidousty C, Rauen T, Kunter U, Rembiak A, Enders D, Jankowski V, Braun GS, Floege J, Ostendorf T, Raffetseder U. Therapeutic nuclear shuttling of YB-1 reduces renal damage and fibrosis. Kidney Int 2016; 90:1226-1237. [PMID: 27591085 DOI: 10.1016/j.kint.2016.07.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/30/2016] [Accepted: 07/07/2016] [Indexed: 12/15/2022]
Abstract
Virtually all chronic kidney diseases progress towards tubulointerstitial fibrosis. In vitro, Y-box protein-1 (YB-1) acts as a central regulator of gene transcription and translation of several fibrosis-related genes. However, it remains to be determined whether its pro- or antifibrotic propensities prevail in disease. Therefore, we investigated the outcome of mice with half-maximal YB-1 expression in a model of renal fibrosis induced by unilateral ureteral obstruction. Yb1+/- animals displayed markedly reduced tubular injury, immune cell infiltration and renal fibrosis following ureteral obstruction. The increase in renal YB-1 was limited to a YB-1 variant nonphosphorylated at serine 102 but phosphorylated at tyrosine 99. During ureteral obstruction, YB-1 localized to the cytoplasm, directly stabilizing Col1a1 mRNA, thus promoting fibrosis. Conversely, the therapeutic forced nuclear compartmentalization of phosphorylated YB-1 by the small molecule HSc025 mediated repression of the Col1a1 promoter and attenuated fibrosis following ureteral obstruction. Blunting of these effects in Yb1+/- mice confirmed involvement of YB-1. HSc025 even reduced tubulointerstitial damage when applied at later time points during maximum renal damage. Thus, phosphorylation and subcellular localization of YB-1 determines its effect on renal fibrosis in vivo. Hence, induced nuclear YB-1 shuttling may be a novel antifibrotic treatment strategy in renal diseases with the potential of damage reversal.
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Affiliation(s)
- Jialin Wang
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Lydia Gibbert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Sonja Djudjaj
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Christina Alidousty
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Uta Kunter
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Andreas Rembiak
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Dieter Enders
- Institute of Organic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Vera Jankowski
- Institute of Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany
| | - Gerald S Braun
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany.
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Nunes de Miranda SM, Wilhelm T, Huber M, Zorn CN. Differential Lyn-dependence of the SHIP1-deficient mast cell phenotype. Cell Commun Signal 2016; 14:12. [PMID: 27206658 PMCID: PMC4874025 DOI: 10.1186/s12964-016-0135-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 05/13/2016] [Indexed: 01/02/2023] Open
Abstract
Background Antigen (Ag)/IgE-mediated mast cell (MC) responses play detrimental roles in allergic diseases. MC activation via the high-affinity receptor for IgE (FcεRI) is controlled by the Src family kinase Lyn. Lyn-deficient (-/-) bone marrow-derived MCs (BMMCs) have been shown by various laboratories to exert stronger activation of the PI3K pathway, degranulation, and production of pro-inflammatory cytokines compared to wild-type (wt) cells. This mimics the phenotype of BMMCs deficient for the SH2-containing inositol-5’-phosphatase 1 (SHIP1). In this line, Lyn has been demonstrated to tyrosine-phosphorylate and activate SHIP1, thereby constituting a negative feedback control of PI3K-mediated signals. However, several groups have also reported on Lyn-/- BMMCs degranulating weaker than wt BMMCs. Results Lyn-/- BMMCs, which show a suppressed degranulation response, were found to exhibit abrogated tyrosine phosphorylation of SHIP1 as well. This indicated that even in the presence of reduced SHIP1 function MC degranulation is dependent on Lyn function. In contrast to the reduced immediate secretory response, pro-inflammatory cytokine production was augmented in Lyn-/- BMMCs. For closer analysis, Lyn/SHIP1-double-deficient (dko) BMMCs were generated. In support of the dominance of Lyn deficiency, dko BMMCs degranulated significantly weaker than SHIP1-/- BMMCs. This coincided with reduced LAT1 and PLC-γ1 phosphorylation as well as Ca2+ mobilization in those cells. Interestingly, activation of the NFκB pathway followed the same pattern as measured by IκBα phosphorylation/degradation as well as induction of NFκB target genes. This suggested that Ag-triggered NFκB activation involves a Ca2+-dependent step. Indeed, IκBα phosphorylation/degradation and NFκB target gene induction were controlled by the Ca2+-dependent phosphatase calcineurin. Conclusions Lyn deficiency is dominant over SHIP1 deficiency in MCs with respect to Ag-triggered degranulation and preceding signaling events. Moreover, the NFκB pathway and respective targets are activated in a Lyn- and Ca2+-dependent manner, reinforcing the importance of Lyn for MC activation. Electronic supplementary material The online version of this article (doi:10.1186/s12964-016-0135-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Susana M Nunes de Miranda
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany
| | - Thomas Wilhelm
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany
| | - Michael Huber
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany.
| | - Carolin N Zorn
- Institute of Biochemistry and Molecular Immunology, University Clinic, RWTH Aachen University, Pauwelsstraße 30, Aachen, 52074, Germany
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28
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Wang W, Wang HJ, Wang B, Li Y, Qin Y, Zheng LS, Zhou JS, Qu PH, Shi JH, Zhang HS. The Role of the Y Box Binding Protein 1 C-Terminal Domain in Vascular Endothelial Cell Proliferation, Apoptosis, and Angiogenesis. DNA Cell Biol 2015; 35:24-32. [PMID: 26430912 DOI: 10.1089/dna.2015.2908] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Different domains of the multifunctional transcription factor Y-box binding protein 1 (YB1) regulate proliferation, differentiation, and apoptosis by transactivating or repressing the promoters of various genes. Here we report that the C-terminal domain of YB1 (YB1 CTD) is involved in endothelial cell proliferation, apoptosis, and tube formation. The oligo pull-down assays demonstrated that YB1 directly binds double-stranded GC box sequences in endothelial cells through the 125-220 amino acids. Adenovirus expression vectors harboring green fluorescent protein (GFP) or GFP-tagged YB1 CTD were constructed and used to infect EA.hy926 endothelial cells. Overexpression of the YB1 CTD significantly increased p21 expression, decreased cyclin B1 expression, and inhibited the proliferation of EA.hy926 cells. YB1 CTD overexpression also increased Bax and active caspase 3 expression, decreased Bcl-2 expression, and induced apoptosis in EA.hy926 cells. Furthermore, overexpression of the YB1 CTD significantly suppressed migration and tube formation in EA.hy926 cells. Finally, YB1 CTD decreased ERK1/2 phosphorylation in EA.hy926 cells. These findings demonstrated vital roles for YB1 in endothelial cell proliferation, apoptosis, and tube formation through transcriptional regulation of GC box-related genes.
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Affiliation(s)
- Wei Wang
- 1 Central Laboratory, Affiliated Hospital of Hebei University , Baoding, China .,2 Department of Cardiovascular Internal Medicine, Baoding First Central Hospital , Baoding, China
| | - Hong-jie Wang
- 1 Central Laboratory, Affiliated Hospital of Hebei University , Baoding, China
| | - Bing Wang
- 1 Central Laboratory, Affiliated Hospital of Hebei University , Baoding, China
| | - Ying Li
- 3 Department of Geriatrics, Baoding Second Hospital , Baoding, China
| | - Yan Qin
- 1 Central Laboratory, Affiliated Hospital of Hebei University , Baoding, China
| | - Li-shuang Zheng
- 1 Central Laboratory, Affiliated Hospital of Hebei University , Baoding, China
| | - Jin-sa Zhou
- 4 Department of Preventive Medicine, Hebei University , Baoding, China
| | - Peng-huan Qu
- 4 Department of Preventive Medicine, Hebei University , Baoding, China
| | - Jian-hong Shi
- 1 Central Laboratory, Affiliated Hospital of Hebei University , Baoding, China
| | - Hai-song Zhang
- 5 Department of Kidney Internal Medicine, Affiliated Hospital of Hebei University , Baoding, China
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Alternatively activated macrophages in the pathogenesis of chronic kidney allograft injury. Pediatr Nephrol 2015; 30:1007-17. [PMID: 25487670 DOI: 10.1007/s00467-014-3023-0] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 11/05/2014] [Accepted: 11/20/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Prevention of chronic kidney allograft injury (CAI) is a major goal in improving kidney allograft survival; however, the mechanisms of CAI are not clearly understood. The current study investigated whether alternatively activated M2-type macrophages are involved in the development of CAI. METHODS A retrospective study examined kidney allograft protocol biopsies (at 1 h and at years 1, 5, and 10--a total of 41 biopsies) obtained from 13 children undergoing transplantation between 1991 and 2008 who were diagnosed with CAI: interstitial fibrosis and tubular atrophy (IF/TA) not otherwise specified (IF/TA-NOS). RESULTS Immunostaining identified a significant increase in interstitial fibrosis with accumulation of CD68 + CD163+ M2-type macrophages. CD163+ cells were frequently localized to areas of interstitial fibrosis exhibiting collagen I deposition and accumulation of α-smooth muscle actin (SMA) + myofibroblasts. There was a significant correlation between interstitial CD163+ cells and the parameters of interstitial fibrosis (p < 0.0001), and kidney function (r =-0.82, p < 0.0001). The number of interstitial CD163+ cells at years 1 and 5 also correlated with parameters of interstitial fibrosis at years 5 and 10 respectively. Notably, urine CD163 levels correlated with interstitial CD163+ cells (r = 0.79, p < 0.01) and parameters of interstitial fibrosis (p < 0.0001). However, CD3+ T lymphocytic infiltration did not correlate with macrophage accumulation or fibrosis. In vitro, dexamethasone up-regulated expression of CD163 and cytokines (TGF-β1, FGF-2, CTGF) in human monocyte-derived macrophages, indicating a pro-fibrotic phenotype. CONCLUSIONS Our findings identify a major population of M2-type macrophages in patients with CAI, and suggest that these M2-type macrophages might promote the development of interstitial fibrosis in IF/TA-NOS.
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Kang S, Lee TA, Ra EA, Lee E, Choi HJ, Lee S, Park B. Differential control of interleukin-6 mRNA levels by cellular distribution of YB-1. PLoS One 2014; 9:e112754. [PMID: 25398005 PMCID: PMC4232504 DOI: 10.1371/journal.pone.0112754] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 10/14/2014] [Indexed: 01/06/2023] Open
Abstract
Cytokine production is essential for innate and adaptive immunity against microbial invaders and must be tightly controlled. Cytokine messenger RNA (mRNA) is in constant flux between the nucleus and the cytoplasm and in transcription, splicing, or decay; such processes must be tightly controlled. Here, we report a novel function of Y-box-binding protein 1 (YB-1) in modulating interleukin-6 (IL-6) mRNA levels in a cell type-specific manner. In lipopolysaccharide (LPS)-stimulated macrophages, YB-1 interacts with IL-6 mRNA and actively transports it to the extracellular space by YB-1-enriched vesicles, resulting in the proper maintenance of intracellular IL-6 mRNA levels. YB-1 secretion occurs in a cell type-specific manner. Whereas macrophages actively secret YB-1, dendritic cells maintain it predominantly in the cytoplasm even in response to LPS. Intracellular YB-1 has the distinct function of regulating IL-6 mRNA stability in dendritic cells. Moreover, because LPS differentially regulates the expression of histone deacetylase 6 (HDAC6) in macrophages and dendritic cells, this stimulus might control YB-1 acetylation differentially in both cell types. Taken together, these results suggest a unique feature of YB-1 in controlling intracellular IL-6 mRNA levels in a cell type-specific manner, thereby leading to functions that are dependent on the extracellular and intracellular distribution of YB-1.
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Affiliation(s)
- Sujin Kang
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Taeyun A. Lee
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Eun A. Ra
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Eunhye Lee
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Hyun jin Choi
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Sungwook Lee
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
- * E-mail: (BP); (SL)
| | - Boyoun Park
- Department of Systems biology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
- * E-mail: (BP); (SL)
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