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Wozny MR, Nelea V, Siddiqui IFS, Wanga S, de Waard V, Strauss M, Reinhardt DP. Microfibril-associated glycoprotein 4 forms octamers that mediate interactions with elastogenic proteins and cells. Nat Commun 2024; 15:4015. [PMID: 38740766 DOI: 10.1038/s41467-024-48377-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
Microfibril-associated glycoprotein 4 (MFAP4) is a 36-kDa extracellular matrix glycoprotein with critical roles in organ fibrosis, chronic obstructive pulmonary disease, and cardiovascular disorders, including aortic aneurysms. MFAP4 multimerises and interacts with elastogenic proteins, including fibrillin-1 and tropoelastin, and with cells via integrins. Structural details of MFAP4 and its potential interfaces for these interactions are unknown. Here, we present a cryo-electron microscopy structure of human MFAP4. In the presence of calcium, MFAP4 assembles as an octamer, where two sets of homodimers constitute the top and bottom halves of each octamer. Each homodimer is linked together by an intermolecular disulphide bond. A C34S missense mutation prevents disulphide-bond formation between monomers but does not prevent octamer assembly. The atomic model, built into the 3.55 Å cryo-EM map, suggests that salt-bridge interactions mediate homodimer assembly, while non-polar residues form the interface between octamer halves. In the absence of calcium, an MFAP4 octamer dissociates into two tetramers. Binding studies with fibrillin-1, tropoelastin, LTBP4, and small fibulins show that MFAP4 has multiple surfaces for protein-protein interactions, most of which depend upon MFAP4 octamer assembly. The C34S mutation does not affect these protein interactions or cell interactions. MFAP4 assemblies with fibrillin-1 abrogate MFAP4 interactions with cells.
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Affiliation(s)
- Michael R Wozny
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
| | - Valentin Nelea
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
| | | | - Shaynah Wanga
- Amsterdam UMC location University of Amsterdam, Medical Biochemistry, Amsterdam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Vivian de Waard
- Amsterdam UMC location University of Amsterdam, Medical Biochemistry, Amsterdam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Mike Strauss
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada.
| | - Dieter P Reinhardt
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada.
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2
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Samadzadeh S, Olesen MN, Wirenfeldt M, Möller S, Misu T, Soelberg K, Frederiksen JL, Heegaard S, Mariotto S, Fujihara K, Ruprecht K, Andersen TL, Marignier R, Lillevang ST, Flanagan EP, Pittock SJ, Kim HJ, Bennett JL, Paul F, Sorensen GL, Weinshenker BG, Lassmann H, Asgari N. Microfibrillar-associated protein 4 as a potential marker of acute relapse in inflammatory demyelinating diseases of the central nervous system: Pathological and clinical aspects. Mult Scler 2023; 29:1721-1735. [PMID: 37830484 PMCID: PMC10880047 DOI: 10.1177/13524585231200720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
BACKGROUND Microfibrillar-associated protein 4 (MFAP4) is an extracellular matrix protein not previously described in the human central nervous system (CNS). OBJECTIVES We determined MFAP4 CNS expression and measured cerebrospinal fluid (CSF) and serum levels. METHODS Tissue was sampled at autopsy from patients with acute multiple sclerosis (MS) (n = 3), progressive MS (n = 3), neuromyelitis optica spectrum disorder (NMOSD) (n = 2), and controls (n = 9), including 6 healthy controls (HC). MFAP4 levels were measured in 152 patients: 49 MS, 62 NMOSD, 22 myelin oligodendrocyte glycoprotein-associated disease (MOGAD), and 19 isolated optic neuritis (ION). RESULTS MFAP4 localized to meninges and vascular/perivascular spaces, intense in the optic nerve. At sites of active inflammation, MFAP4 reactivity was reduced in NMOSD and acute MS and less in progressive MS. CSF MFAP4 levels were reduced during relapse and at the onset of diseases (mean U/mL: MS 14.3, MOGAD 9.7, and ION 14.6 relative to HC 17.9. (p = 0.013, p = 0.000, and p = 0.019, respectively). Patients with acute ON (n = 68) had reduced CSF MFAP4 (mean U/mL: 14.5, p = 0.006). CSF MFAP4 levels correlated negatively with relapse severity (rho = -0.41, p = 0.017). CONCLUSION MFAP4 immunoreactivity was reduced at sites of active inflammation. CSF levels of MFAP4 were reduced following relapse and may reflect disease activity.
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Affiliation(s)
- Sara Samadzadeh
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Neurology, Slagelse Hospital, Slagelse, Denmark/Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Mads Nikolaj Olesen
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Neurology, Slagelse Hospital, Slagelse, Denmark/Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - Martin Wirenfeldt
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Pathological Anatomy and Molecular Biology, Hospital South West Jutland, Esbjerg, Denmark
| | - Sören Möller
- Open Patient Data Explorative Network, Odense University Hospital, University of Southern Denmark, Odense, Denmark
| | - Tatsuro Misu
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kerstin Soelberg
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Jette Lautrup Frederiksen
- Danish Multiple Sclerosis Center, Department of Neurology, Copenhagen University Hospital-Rigshospitalet, Glostrup, Denmark
| | - Steffen Heegaard
- Departments of Ophthalmology and Pathology, Rigshospitalet, Glostrup, Denmark
| | - Sara Mariotto
- Neurology Unit, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Verona, Italy
| | - Kazuo Fujihara
- Department of Multiple Sclerosis Therapeutics, Fukushima Medical University School of Medicine, Fukushima, Japan
- Multiple Sclerosis and Neuromyelitis Optica Center, Southern Tohoku Research Institute for Neuroscience, Koriyama, Japan
| | - Klemens Ruprecht
- Department of Neurology, Charité-Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Thomas Levin Andersen
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Romain Marignier
- Service de Neurologie, Sclérose en Plaques, Pathologies de la Myéline et Neuro-inflammation, Hôpital Neurologique Pierre Wertheimer, Hospices Civils de Lyon, Lyon, France
| | | | - Eoin P Flanagan
- Department Neurology and Center for MS and Autoimmune Neurology, Mayo Clinic, Rochester, MN, USA
| | - Sean J Pittock
- Department Neurology and Center for MS and Autoimmune Neurology, Mayo Clinic, Rochester, MN, USA
| | - Ho Jin Kim
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Republic of Korea
| | - Jeffrey L Bennett
- Department of Neurology & Ophthalmology, Programs in Neuroscience & Immunology University of Colorado, Anschutz, CO, USA
| | - Friedemann Paul
- Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Grith Lykke Sorensen
- Cancer and Inflammation, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Hans Lassmann
- Center for Brain Research, Medical University of Vienna, Vienna, Austria
| | - Nasrin Asgari
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark Department of Neurology, Slagelse Hospital, Slagelse, Denmark
- Open Patient Data Explorative Network, Odense University Hospital, University of Southern Denmark, Odense, Denmark
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3
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He M, Borlak J. A genomic perspective of the aging human and mouse lung with a focus on immune response and cellular senescence. Immun Ageing 2023; 20:58. [PMID: 37932771 PMCID: PMC10626779 DOI: 10.1186/s12979-023-00373-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/12/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND The aging lung is a complex process and influenced by various stressors, especially airborne pathogens and xenobiotics. Additionally, a lifetime exposure to antigens results in structural and functional changes of the lung; yet an understanding of the cell type specific responses remains elusive. To gain insight into age-related changes in lung function and inflammaging, we evaluated 89 mouse and 414 individual human lung genomic data sets with a focus on genes mechanistically linked to extracellular matrix (ECM), cellular senescence, immune response and pulmonary surfactant, and we interrogated single cell RNAseq data to fingerprint cell type specific changes. RESULTS We identified 117 and 68 mouse and human genes linked to ECM remodeling which accounted for 46% and 27%, respectively of all ECM coding genes. Furthermore, we identified 73 and 31 mouse and human genes linked to cellular senescence, and the majority code for the senescence associated secretory phenotype. These cytokines, chemokines and growth factors are primarily secreted by macrophages and fibroblasts. Single-cell RNAseq data confirmed age-related induced expression of marker genes of macrophages, neutrophil, eosinophil, dendritic, NK-, CD4+, CD8+-T and B cells in the lung of aged mice. This included the highly significant regulation of 20 genes coding for the CD3-T-cell receptor complex. Conversely, for the human lung we primarily observed macrophage and CD4+ and CD8+ marker genes as changed with age. Additionally, we noted an age-related induced expression of marker genes for mouse basal, ciliated, club and goblet cells, while for the human lung, fibroblasts and myofibroblasts marker genes increased with age. Therefore, we infer a change in cellular activity of these cell types with age. Furthermore, we identified predominantly repressed expression of surfactant coding genes, especially the surfactant transporter Abca3, thus highlighting remodeling of surfactant lipids with implications for the production of inflammatory lipids and immune response. CONCLUSION We report the genomic landscape of the aging lung and provide a rationale for its growing stiffness and age-related inflammation. By comparing the mouse and human pulmonary genome, we identified important differences between the two species and highlight the complex interplay of inflammaging, senescence and the link to ECM remodeling in healthy but aged individuals.
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Affiliation(s)
- Meng He
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Jürgen Borlak
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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Han C, Peng Y, Yang X, Guo Z, Yang X, Su P, Guo S, Zhao L. Declined plasma microfibrillar-associated protein 4 levels in acute coronary syndrome. Eur J Med Res 2023; 28:32. [PMID: 36650606 PMCID: PMC9847181 DOI: 10.1186/s40001-023-01002-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Microfibrillar-associated protein (MFAP4), initially identified as an extracellular matrix protein, has been demonstrated in multiple human disorders, but it is yet to be discovered following acute coronary syndrome (ACS) in clinical practice. Therefore, this study aimed to investigate the relationship between circulating MFAP4 levels and coronary stenosis in ACS. METHODS We performed the study in 148 ACS subjects, including 75 ST-segment elevation myocardial infarction (STEMI), 27 non-ST-segment elevation myocardial infarction (non-STEMI) and 46 unstable angina (UA). Clinical variables were collected and Gensini and Syntax stenosis scoring systems were applied to assess the severity of coronary stenosis. Kaplan-Meier and logistic regression analysis were used to analyze the relationship between MFAP4 and the severity of coronary stenosis or ACS outcomes. Spearman analysis was used to describe the correlation between MFAP4 and clinical parameters. RESULTS Circulating MFAP4 levels were significantly decreased in the STEMI group (0.008 ng/ml) compared with the non-STEMI group (0.014 ng/ml) and UA group (0.019 ng/ml) (p < 0.001). After adjusting for confounding factors, we found that MFAP4 was an independent risk factor for STEMI (odds ratio = 0.395, 95% CI 0.174-0.895, p = 0.026). MFAP4 level was negatively correlated with Gensini score and Syntax score (r = - 0.311 and - 0.211, p < 0.001 and 0.01, respectively). Based on the MFAP4 level of 0.117 ng/ml, ACS patients were divided into two groups: the low-MFAP4 group (< 0.117 ng/ml, n = 60) and the high-MFAP4 group (≥ 0.117 ng/ml, n = 88). After the median follow-up of 165 days, Kaplan-Meier survival analysis revealed that the MACE-free rate was significantly lower in ACS patients with lower MFAP4 levels (p = 0.009). CONCLUSIONS MFAP4 has a potential as a biomarker for the degree of coronary stenosis in ACS. Confirmation of observations in larger cohorts and longer follow-up periods is warranted.
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Affiliation(s)
- Chunming Han
- grid.24696.3f0000 0004 0369 153XEmergency Medicine Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China ,grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Yuanshu Peng
- grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Xiaoyan Yang
- grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Zongsheng Guo
- grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Xinchun Yang
- grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Pixiong Su
- grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Shubin Guo
- grid.24696.3f0000 0004 0369 153XEmergency Medicine Clinical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China ,Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing, 100020 China
| | - Lei Zhao
- grid.24696.3f0000 0004 0369 153XHeart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
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Mohammadi A, Sorensen GL, Pilecki B. MFAP4-Mediated Effects in Elastic Fiber Homeostasis, Integrin Signaling and Cancer, and Its Role in Teleost Fish. Cells 2022; 11:cells11132115. [PMID: 35805199 PMCID: PMC9265350 DOI: 10.3390/cells11132115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 11/16/2022] Open
Abstract
Microfibrillar-associated protein 4 (MFAP4) is an extracellular matrix (ECM) protein belonging to the fibrinogen-related domain superfamily. MFAP4 is highly expressed in elastin-rich tissues such as lung, blood vessels and skin. MFAP4 is involved in organization of the ECM, regulating proper elastic fiber assembly. On the other hand, during pathology MFAP4 actively contributes to disease development and progression due to its interactions with RGD-dependent integrin receptors. Both tissue expression and circulating MFAP4 levels are associated with various disorders, including liver fibrosis and cancer. In other experimental models, such as teleost fish, MFAP4 appears to participate in host defense as a macrophage-specific innate immune molecule. The aim of this review is to summarize the accumulating evidence that indicates the importance of MFAP4 in homeostasis as well as pathological conditions, discuss its known biological functions with special focus on elastic fiber assembly, integrin signaling and cancer, as well as describe the reported functions of non-mammalian MFAP4 in fish. Overall, our work provides a comprehensive overview on the role of MFAP4 in health and disease.
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Tan M, Wang S, Li F, Xu H, Gao J, Zhu L. A methylation-driven genes prognostic signature and the immune microenvironment in epithelial ovarian cancer. Carcinogenesis 2022; 43:635-646. [PMID: 35639961 DOI: 10.1093/carcin/bgac048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/22/2022] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
Aberrant gene methylation has been implicated in the development and progression of tumors. In this study, we aimed to identity methylation driven genes involved in epithelial ovarian cancer (EOC) to establish a prognostic signature for patients with EOC. We identified and verified 6 MDGs that are closely related to the prognosis of ovarian cancer. A prognostic risk score model and nomogram for predicting the prognosis of ovarian cancer were constructed based on the six MDGs. It can also effectively reflect the immune environment and immunotherapy response of ovarian cancer. These MDGs have great significance to the implementation of individualized treatment and disease monitoring of ovarian cancer patients.
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Affiliation(s)
- Mingzi Tan
- Department of Gynecology, Cancer Hospital of China Medical University, No.44 Xiaoheyan Road, Dadong District, Shenyang 110042, Liaoning Province, P R China.,Department of Gynecology, Liaoning Cancer Hospital & Institute, No.44 Xiaoheyan Road, Dadong District, Shenyang 110042, Liaoning Province, P R China
| | - Shengtan Wang
- Department of Gynecology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570011, P.R. China
| | - Feifei Li
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, Shandong, China
| | - Haoya Xu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, 110004, P.R. China
| | - Jian Gao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, 110004, P.R. China
| | - Liancheng Zhu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, 110004, P.R. China
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7
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Kanaan R, Medlej-Hashim M, Jounblat R, Pilecki B, Sorensen GL. Microfibrillar-associated protein 4 in health and disease. Matrix Biol 2022; 111:1-25. [DOI: 10.1016/j.matbio.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/04/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
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8
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Pilecki B, de Carvalho PVSD, Kirketerp-Møller KL, Schlosser A, Kejling K, Dubik M, Madsen NP, Stubbe J, Hansen PBL, Andersen TL, Moeller JB, Marcussen N, Azevedo V, Hvidsten S, Baun C, Shi GP, Lindholt JS, Sorensen GL. MFAP4 Deficiency Attenuates Angiotensin II-Induced Abdominal Aortic Aneurysm Formation Through Regulation of Macrophage Infiltration and Activity. Front Cardiovasc Med 2021; 8:764337. [PMID: 34805319 PMCID: PMC8602692 DOI: 10.3389/fcvm.2021.764337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/15/2021] [Indexed: 01/14/2023] Open
Abstract
Objective: Abdominal aortic aneurysm (AAA) is a common age-related vascular disease characterized by progressive weakening and dilatation of the aortic wall. Microfibrillar-associated protein 4 (MFAP4) is an extracellular matrix (ECM) protein involved in the induction of vascular remodeling. This study aimed to investigate if MFAP4 facilitates the development of AAA and characterize the underlying MFAP4-mediated mechanisms. Approach and Results: Double apolipoprotein E- and Mfap4-deficient (ApoE−/−Mfap4−/−) and control apolipoprotein E-deficient (ApoE−/−) mice were infused subcutaneously with angiotensin II (Ang II) for 28 days. Mfap4 expression was localized within the adventitial and medial layers and was upregulated after Ang II treatment. While Ang II-induced blood pressure increase was independent of Mfap4 genotype, ApoE−/−Mfap4−/− mice exhibited significantly lower AAA incidence and reduced maximal aortic diameter compared to ApoE−/− littermates. The ApoE−/−Mfap4−/− AAAs were further characterized by reduced macrophage infiltration, matrix metalloproteinase (MMP)-2 and MMP-9 activity, proliferative activity, collagen content, and elastic membrane disruption. MFAP4 deficiency also attenuated activation of integrin- and TGF-β-related signaling within the adventitial layer of AAA tissues. Finally, MFAP4 stimulation promoted human monocyte migration and significantly upregulated MMP-9 activity in macrophage-like THP-1 cells. Conclusion: This study demonstrates that MFAP4 induces macrophage-rich inflammation, MMP activity, and maladaptive remodeling of the ECM within the vessel wall, leading to an acceleration of AAA development and progression. Collectively, our findings suggest that MFAP4 is an essential aggravator of AAA pathology that acts through regulation of monocyte influx and MMP production.
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Affiliation(s)
- Bartosz Pilecki
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Paulo V S D de Carvalho
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil.,Department of Mathematics and Informatics, University of Southern Denmark, Odense, Denmark
| | - Katrine L Kirketerp-Møller
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Anders Schlosser
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Karin Kejling
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Magdalena Dubik
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Nicklas P Madsen
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jane Stubbe
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Pernille B L Hansen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Cardiovascular, Renal and Metabolism, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Thomas L Andersen
- Department of Pathology, Odense University Hospital, Odense, Denmark.,Pathology Research Unit, Institute of Clinical Research and Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jesper B Moeller
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Danish Institute for Advanced Study, University of Southern Denmark, Odense, Denmark
| | - Niels Marcussen
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Vasco Azevedo
- Department of General Biology, Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Svend Hvidsten
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
| | - Christina Baun
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
| | - Guo-Ping Shi
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Jes S Lindholt
- Department of Thoracic, Heart and Vascular Surgery, Odense University Hospital, Odense, Denmark
| | - Grith L Sorensen
- Department of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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9
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Zhou M, Hong S, Li B, Liu C, Hu M, Min J, Tang J, Hong L. Development and Validation of a Prognostic Nomogram Based on DNA Methylation-Driven Genes for Patients With Ovarian Cancer. Front Genet 2021; 12:675197. [PMID: 34567062 PMCID: PMC8458765 DOI: 10.3389/fgene.2021.675197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 08/23/2021] [Indexed: 12/20/2022] Open
Abstract
Background: DNA methylation affects the development, progression, and prognosis of various cancers. This study aimed to identify DNA methylated-differentially expressed genes (DEGs) and develop a methylation-driven gene model to evaluate the prognosis of ovarian cancer (OC). Methods: DNA methylation and mRNA expression profiles of OC patients were downloaded from The Cancer Genome Atlas, Genotype-Tissue Expression, and Gene Expression Omnibus databases. We used the R package MethylMix to identify DNA methylation-regulated DEGs and built a prognostic signature using LASSO Cox regression. A quantitative nomogram was then drawn based on the risk score and clinicopathological features. Results: We identified 56 methylation-related DEGs and constructed a prognostic risk signature with four genes according to the LASSO Cox regression algorithm. A higher risk score not only predicted poor prognosis, but also was an independent poor prognostic indicator, which was validated by receiver operating characteristic (ROC) curves and the validation cohort. A nomogram consisting of the risk score, age, FIGO stage, and tumor status was generated to predict 3- and 5-year overall survival (OS) in the training cohort. The joint survival analysis of DNA methylation and mRNA expression demonstrated that the two genes may serve as independent prognostic biomarkers for OS in OC. Conclusion: The established qualitative risk score model was found to be robust for evaluating individualized prognosis of OC and in guiding therapy.
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Affiliation(s)
- Min Zhou
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shasha Hong
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bingshu Li
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Cheng Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ming Hu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jie Min
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jianming Tang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Hong
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
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10
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Zhao F, Grimm SA, Yao HHC. Molecular Actions Underlying Wolffian Duct Regression in Sexual Differentiation of Murine Reproductive Tracts. Sex Dev 2021; 14:51-59. [PMID: 33684916 PMCID: PMC8328876 DOI: 10.1159/000513878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 12/17/2020] [Indexed: 12/15/2022] Open
Abstract
Sexually dimorphic establishment of the reproductive tract system requires sex-specific regression of the Wolffian duct and Müllerian duct in the mesonephros. In an XX embryo, the Wolffian duct regresses under the control of the mesenchymal transcription factor COUP-TFII. To understand cellular and molecular actions underlying Wolffian duct regression, we performed transcriptomic analyses of XX mesonephroi with or without Coup-tfII and genome-wide analysis of COUP-TFII chromatin occupancy in XX mesonephroi. The integrative analysis of COUP-TFII genome-wide binding and transcriptomic analysis revealed the suppression of muscle differentiation and extracellular matrix genes by COUP-TFII and identified a group of potential transcriptional partners of COUP-TFII in the mesenchyme that potentially facilitate Wolffian duct regression. These findings provide insights into the molecular action of COUP-TFII in the Wolffian duct mesenchyme and identify a list of biologically relevant candidate genes and pathways for future functional analyses in sexual differentiation of reproductive tracts.
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Affiliation(s)
- Fei Zhao
- Reproductive Developmental Biology Group, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Sara A Grimm
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA
| | - Humphrey H-C Yao
- Reproductive Developmental Biology Group, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, USA,
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11
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Dorn LE, Lawrence W, Petrosino JM, Xu X, Hund TJ, Whitson BA, Stratton MS, Janssen PML, Mohler PJ, Schlosser A, Sorensen GL, Accornero F. Microfibrillar-Associated Protein 4 Regulates Stress-Induced Cardiac Remodeling. Circ Res 2021; 128:723-737. [PMID: 33530700 DOI: 10.1161/circresaha.120.317146] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
[Figure: see text].
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Affiliation(s)
- Lisa E Dorn
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus
| | - William Lawrence
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus
| | - Jennifer M Petrosino
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus
| | - Xianyao Xu
- Biomedical Engineering, The Ohio State University, Columbus (X.X., T.J.H.)
| | - Thomas J Hund
- Biomedical Engineering, The Ohio State University, Columbus (X.X., T.J.H.)
| | - Bryan A Whitson
- Bob and Corrine Frick Center for Heart Failure and Arrhythmia (B.A.W., P.J.M.), The Ohio State University Wexner Medical Center, Columbus.,Dorothy M. Davis Heart and Lung Research Institute and Surgery (B.A.W.), The Ohio State University Wexner Medical Center, Columbus
| | - Matthew S Stratton
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus
| | - Paul M L Janssen
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus
| | - Peter J Mohler
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus.,Bob and Corrine Frick Center for Heart Failure and Arrhythmia (B.A.W., P.J.M.), The Ohio State University Wexner Medical Center, Columbus
| | - Anders Schlosser
- Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense (A.S., G.L.S.)
| | - Grith L Sorensen
- Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense (A.S., G.L.S.)
| | - Federica Accornero
- Physiology and Cell Biology (L.E.D., W.L., J.M.P., M.S.S., P.M.L.J., P.J.M., F.A.), The Ohio State University Wexner Medical Center, Columbus
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12
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Pan Z, Yang K, Wang H, Xiao Y, Zhang M, Yu X, Xu T, Bai T, Zhu H. MFAP4 deficiency alleviates renal fibrosis through inhibition of NF-κB and TGF-β/Smad signaling pathways. FASEB J 2020; 34:14250-14263. [PMID: 32905637 DOI: 10.1096/fj.202001026r] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/22/2020] [Accepted: 08/03/2020] [Indexed: 12/19/2022]
Abstract
Renal fibrosis, which is characterized by excessive extracellular matrix (ECM) accumulation in the renal tubulointerstitium, can lead to chronic kidney disease (CKD). The role of microfiber-associated protein 4 (MFAP4), which is an ECM protein that interacts with elastin and collagen, in renal fibrosis has not been investigated. The aim of this study was to examine the role of MFAP4 in the pathogenesis of renal fibrosis and the underlying mechanism using in vivo and in vitro models. The MFAP4-/- mice were subjected to unilateral ureteral obstruction (UUO) to elucidate the role of MFAP4 in renal fibrosis in vivo. Compared to the wild-type mice, the MFAP4-/- mice exhibited decreased protein expression of p-p65 and p-IKBα and ECM deposition after UUO. The MFAP4-/- mice exhibited attenuated nuclear translocation of p65 (the hub subunit of nuclear factor (NF)-κB signaling pathway), suppressed activation of transforming growth factor (TGF)-β/Smad pathways, and downregulated expression of fibronectin, collagen I, and plasminogen activator inhibitor-1. The knockdown of MFAP4 mitigated the TGF-β-induced upregulated expression of fibronectin, collagen I, and plasminogen activator inhibitor-1 in the human proximal tubular epithelial cells (HK-2). Compared to the HK-2 cells transfected with sh-MFAP4, the HK-2 cells co-transfected with sh-MFAP4 and Ad-MFAP4 exhibited severe inflammatory response and increased fibrosis-related proteins expression. Mechanistically, the knockdown of MFAP4 inhibited the activation of NF-κB and TGF-β/Smad signaling pathways and downregulated the expression of fibrosis-related proteins. The findings of this study indicate that MFAP4 is involved in UUO-induced renal fibrosis through regulation of NF-κB and TGF-β/Smad pathways.
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Affiliation(s)
- Zhou Pan
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Kang Yang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Huibo Wang
- Department of Cardiology, Three Gorges University People's Hospital, The First People's Hospital of Yichang, Yichang, P.R. China
| | - Yusha Xiao
- Department of General Surgery, Research Center of Digestive Diseases, Zhongnan Hospital of Wuhan University, Wuhan, P.R. China
| | - Ming Zhang
- Department of Orthopedics Trauma, Puren Hospital, Wuhan University of Science and Technology, Wuhan, P.R. China
| | - Xi Yu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Tao Xu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Tao Bai
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
| | - Hengcheng Zhu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, P.R. China
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13
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Wang HB, Yang J, Shuai W, Yang J, Liu LB, Xu M, Tang QZ. Deletion of Microfibrillar-Associated Protein 4 Attenuates Left Ventricular Remodeling and Dysfunction in Heart Failure. J Am Heart Assoc 2020; 9:e015307. [PMID: 32856514 PMCID: PMC7660778 DOI: 10.1161/jaha.119.015307] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background Cardiac remodeling predisposes individuals to heart failure if the burden is not solved, and heart failure is a growing cause of morbidity and mortality worldwide. The cardiac extracellular matrix not only provides structural support, but also is a core aspect of the myocardial response to various biomechanical stresses and heart failure. MFAP4 (microfibrillar‐associated protein 4) is an integrin ligand located in the extracellular matrix, whose biological functions in the heart remain poorly understood. In the current study we aimed to test the role of MFAP4 in cardiac remodeling. Methods and Results MFAP4‐deficient (MFAP4−/−) and wild‐type mice were subjected to aortic banding surgery and isoproterenol to establish models of cardiac remodeling. We also evaluated the functional effects of MFAP4 on cardiac hypertrophy, fibrosis, and cardiac electrical remodeling. The expression of MFAP4 was increased in the animal cardiac remodeling models induced by pressure overload and isoproterenol. After challenge of 8 weeks of aortic banding or 2 weeks of intraperitoneal isoproterenol, MFAP4−/− mice exhibited lower levels of cardiac fibrosis and fewer ventricular arrhythmias than wild‐type mice. However, there was no significant effect on cardiomyocyte hypertrophy. In addition, there was no significant difference in cardiac fibrosis severity, hypertrophy, or ventricular arrhythmia incidence between wild‐type‐sham and knockout‐sham mice. Conclusions These findings are the first to demonstrate that MFAP4 deficiency inhibits cardiac fibrosis and ventricular arrhythmias after challenge with 8 weeks of aortic banding or 2 weeks of intraperitoneal isoproterenol but does not significantly affect the hypertrophy response. In addition, MFAP4 deficiency had no significant effect on cardiac fibrosis, hypertrophy, or ventricular arrhythmia in the sham group in this study.
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Affiliation(s)
- Hui-bo Wang
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Metabolic and Chronic DiseasesWuhanChina
- Department of CardiologyThree Gorges University People’s HospitalThe First People’s Hospital of YichangYichangChina
| | - Jian Yang
- Department of CardiologyThree Gorges University People’s HospitalThe First People’s Hospital of YichangYichangChina
| | - Wei Shuai
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Metabolic and Chronic DiseasesWuhanChina
| | - Jun Yang
- Department of CardiologyThe First College of Clinical Medical ScienceChina Three Gorges UniversityYichangChina
- Institute of Cardiovascular DiseasesChina Three Gorges UniversityYichangChina
| | - Li-bo Liu
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Metabolic and Chronic DiseasesWuhanChina
| | - Man Xu
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Metabolic and Chronic DiseasesWuhanChina
| | - Qi-zhu Tang
- Department of CardiologyRenmin Hospital of Wuhan UniversityWuhanChina
- Hubei Key Laboratory of Metabolic and Chronic DiseasesWuhanChina
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14
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Zhu S, Ye L, Bennett S, Xu H, He D, Xu J. Molecular structure and function of microfibrillar-associated proteins in skeletal and metabolic disorders and cancers. J Cell Physiol 2020; 236:41-48. [PMID: 32572962 DOI: 10.1002/jcp.29893] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/11/2020] [Accepted: 06/11/2020] [Indexed: 12/16/2022]
Abstract
Microfibrillar-associated proteins (MFAPs) are extracellular matrix glycoproteins, which play a role in microfibril assembly, elastinogenesis, and tissue homeostasis. MFAPs consist of five subfamily members, including MFAP1, MFAP2, MFAP3, MFAP4, and MFAP5. Among these, MFAP2 and MFAP5 are most closely related, and exhibit very limited amino acid sequence homology with MFAP1, MFAP3, and MFAP4. Gene expression profiling analysis reveals that MFAP2, MFAP5, and MFAP4 are specifically expressed in osteoblastic like cells, whereas MFAP1 and MFAP3 are more ubiquitously expressed, indicative of their diverse role in the tropism of tissues. Molecular structural analysis shows that each MFAP family member has distinct features, and functional evidence reveals discrete purposes of individual MFAPs. Animal studies indicate that MFAP2-deficient mice exhibit progressive osteopenia with elevated receptor activator of NF-κB ligand (RANKL) expression, whereas MFAP5-deficient mice are neutropenic, and MFAP4-deficient mice displayed emphysema-like pathology and the impaired formation of neointimal hyperplasia. Emerging data also suggest that MFAPs are involved in cancer progression and fat metabolism. Further understanding of tissue-specific pathophysiology of MFAPs might offer potential novel therapeutic targets for related diseases, such as skeletal and metabolic disorders, and cancers.
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Affiliation(s)
- Sipin Zhu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - Lin Ye
- Department of Orthopaedic Surgery, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, China
| | - Samuel Bennett
- Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - Huazi Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Dengwei He
- Department of Orthopaedic Surgery, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, China
| | - Jiake Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Australia
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15
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High plasma microfibrillar-associated protein 4 is associated with reduced surgical repair in abdominal aortic aneurysms. J Vasc Surg 2020; 71:1921-1929. [DOI: 10.1016/j.jvs.2019.08.253] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 08/15/2019] [Indexed: 12/16/2022]
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16
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Recent updates on the molecular network of elastic fiber formation. Essays Biochem 2019; 63:365-376. [PMID: 31395654 DOI: 10.1042/ebc20180052] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/12/2019] [Accepted: 07/26/2019] [Indexed: 12/20/2022]
Abstract
Elastic fibers confer elasticity and recoiling to tissues and organs and play an essential role in induction of biochemical responses in a cell against mechanical forces derived from the microenvironment. The core component of elastic fibers is elastin (ELN), which is secreted as the monomer tropoelastin from elastogenic cells, and undergoes self-aggregation, cross-linking and deposition on to microfibrils, and assemble into insoluble ELN polymers. For elastic fibers to form, a microfibril scaffold (primarily formed by fibrillin-1 (FBN1)) is required. Numerous elastic fiber-associated proteins are involved in each step of elastogenesis and they instruct and/or facilitate the elastogenesis processes. In this review, we designated five proteins as key molecules in elastic fiber formation, including ELN, FBN1, fibulin-4 (FBLN4), fibulin-5 (FBLN5), and latent TGFβ-binding protein-4 (LTBP4). ELN and FBN1 serve as building blocks for elastic fibers. FBLN5, FBLN4 and LTBP4 have been demonstrated to play crucial roles in elastogenesis through knockout studies in mice. Using these molecules as a platform and expanding the elastic fiber network through the generation of an interactome map, we provide a concise review of elastogenesis with a recent update as well as discuss various biological functions of elastic fiber-associated proteins beyond elastogenesis in vivo.
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17
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Johansson SL, Wulf-Johansson H, Schlosser A, Titlestad IL, Miller B, Tal-Singer R, Holmskov U, Vestbo J, Sørensen GL. Plasma microfibrillar-associated protein 4 is not prognostic of emphysema progression but is associated with cardiovascular disease history and mortality in COPD patients. ERJ Open Res 2019; 5:00021-2019. [PMID: 31024964 PMCID: PMC6469069 DOI: 10.1183/23120541.00021-2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 02/24/2019] [Indexed: 11/10/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is characterised by chronic airflow limitation and inflammation of the airways and lung parenchyma. COPD is associated with many comorbidities, especially cardiovascular disease (CVD), which share similar risk factors with COPD [1]. Circulating MFAP4 is a relevant biomarker to identify COPD patients at risk of death and cardiovascular comorbidity after smoking cessationhttp://ow.ly/6vnL30o8t1g
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Affiliation(s)
- Sofie Lock Johansson
- Dept of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Helle Wulf-Johansson
- Dept of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Anders Schlosser
- Dept of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Ingrid L Titlestad
- Dept of Respiratory Medicine, Odense University Hospital, Odense, Denmark
| | | | | | - Uffe Holmskov
- Dept of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Jørgen Vestbo
- Dept of Respiratory Medicine, Odense University Hospital, Odense, Denmark.,Division of Infection, Immunity and Respiratory Medicine, The University of Manchester, Manchester Academic Health Science Centre, and Manchester NHS Foundation Trust, Manchester, UK
| | - Grith Lykke Sørensen
- Dept of Cancer and Inflammation Research, Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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18
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Yang J, Song H, Chen L, Cao K, Zhang Y, Li Y, Hao X. Integrated analysis of microfibrillar-associated proteins reveals MFAP4 as a novel biomarker in human cancers. Epigenomics 2019; 11:1635-1651. [DOI: 10.2217/epi-2018-0080] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Aim: The potential functions and underlying mechanism of microfibrillar-associated proteins (MFAPs) are explored in human cancers. Materials & methods: Here, we examined the expression profiles, prognostic values, epigenetic and genetic alterations of MFAPs in human cancers from public omics repository. Results: Among MFAPs family, MFAP4 was frequently downregulated in the most human cancers and high mRNA expression of MFAP4 significantly correlated with better overall survival in breast cancer. DNA hypermethylation in the promoter of MFAP4 decreased its mRNA expression. MFAP4 strongly associated with pathway in impairment and alteration of the elastic fibers. Conclusion: This integrated analysis provides new insights into MFAPs in human cancers and indicates that MFAP4 could be used as novel biomarker for developing therapies against human cancers.
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Affiliation(s)
- Jue Yang
- The State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province & Chinese Academic of Sciences, Guiyang 550014, PR China
| | - Hui Song
- The Key Laboratory of Endemic & Ethnic Diseases, Guizhou Medical University, Ministry of Education, Guiyang 550004, PR China
- The Key Laboratory of Medical Molecular Biology, Guizhou Medical University, Guizhou Province, Guiyang 550004, PR China
| | - Li Chen
- Guiyang University of Chinese Medicine, School of Pharmaceutical Sciences, Guiyang 550025, PR China
| | - Kun Cao
- Department of General Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550001, PR China
| | - Yongqiang Zhang
- Guizhou University, School of Pharmaceutical Sciences, Guiyang, 550025, PR China
| | - Yanmei Li
- The State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province & Chinese Academic of Sciences, Guiyang 550014, PR China
| | - Xiaojiang Hao
- The State Key Laboratory of Functions & Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, PR China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province & Chinese Academic of Sciences, Guiyang 550014, PR China
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19
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Hemstra LE, Schlosser A, Lindholt JS, Sorensen GL. Microfibrillar-associated protein 4 variation in symptomatic peripheral artery disease. J Transl Med 2018; 16:159. [PMID: 29884190 PMCID: PMC5994031 DOI: 10.1186/s12967-018-1523-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/23/2018] [Indexed: 11/10/2022] Open
Abstract
Background Symptomatic peripheral artery disease (PAD) is an atherosclerotic occlusive disease affecting the lower extremities. The cause of symptomatic PAD is atherosclerosis, vascular dysfunctions, impaired angiogenesis and neointima formation. Microfibrillar-associated protein 4 (MFAP4) is an extracellular matrix protein, which is highly expressed in the heart and arteries and recently introduced as a potential mediator of pathological vascular remodeling and neointima formation. We aimed to investigate the relationship between serum MFAP4 (sMFAP4) and symptomatic PAD outcomes. Methods A total of 286 PAD patients were analyzed if they had either intermittent claudication or critical lower-extremity ischemia (CLI) and followed for 7 years. The level of serum MFAP4 (sMFAP4) was measured by alphaLISA. Kaplan–Meier, Cox proportional hazard and logistic regression analysis were used to analyze the associations between upper tertile sMFAP4 and symptomatic PAD outcomes. Results Patients with upper tertile sMFAP4 had an odds ratio (OR) of 2.65 (p < 0.001) for having CLI diagnosis. Further analysis indicated that patients with upper tertile sMFAP4 had a hazard ratio (HR) of 1.97 (p = 0.04) for cardiovascular death during the 7-years follow-up. However, analysis of 2-year primary patency showed that patients with upper tertile sMFAP4 had decreased risk of vascular occlusion after reconstructive surgery with HR of 0.15 (p = 0.02). Conclusions sMFAP4 has potential as a prognostic marker for cardiovascular death, primary patency of reconstructed vessels and CLI diagnosis in symptomatic PAD patients. Confirmation of observations in larger cohorts is warranted. Electronic supplementary material The online version of this article (10.1186/s12967-018-1523-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Line Ea Hemstra
- Cancer and Inflammation Research, Department of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 25, 3rd Floor, Odense, Denmark
| | - Anders Schlosser
- Cancer and Inflammation Research, Department of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 25, 3rd Floor, Odense, Denmark
| | - Jes Sanddal Lindholt
- Cardiovascular Research Unit, Viborg Hospital, Viborg, Denmark.,Center of Individualized Medicine in Arterial Diseases (CIMA), Department of Cardiothoracic and Vascular Surgery, Odense University Hospital, Odense, Denmark
| | - Grith L Sorensen
- Cancer and Inflammation Research, Department of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 25, 3rd Floor, Odense, Denmark.
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20
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Assessing the Effects of Fibrosis on Lung Function by Light Microscopy-Coupled Stereology. Methods Mol Biol 2017. [PMID: 28836194 DOI: 10.1007/978-1-4939-7113-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Pulmonary diseases such as fibrosis are characterized by structural abnormalities that lead to impairment of proper lung function. Stereological analysis of serial tissue sections allows detection and quantitation of subtle changes in lung architecture. Here, we describe a stereology-based method of assessing pathology-induced changes in lung structure.
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21
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Chen X, Orriols M, Walther FJ, Laghmani EH, Hoogeboom AM, Hogen-Esch ACB, Hiemstra PS, Folkerts G, Goumans MJTH, Ten Dijke P, Morrell NW, Wagenaar GTM. Bone Morphogenetic Protein 9 Protects against Neonatal Hyperoxia-Induced Impairment of Alveolarization and Pulmonary Inflammation. Front Physiol 2017; 8:486. [PMID: 28751863 PMCID: PMC5507999 DOI: 10.3389/fphys.2017.00486] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 06/26/2017] [Indexed: 12/27/2022] Open
Abstract
Aim: Effective treatment of premature infants with bronchopulmonary dysplasia (BPD) is lacking. We hypothesize that bone morphogenetic protein 9 (BMP9), a ligand of the TGF-β family that binds to the activin receptor-like kinase 1 (ALK1)-BMP receptor type 2 (BMPR2) receptor complex, may be a novel therapeutic option for BPD. Therefore, we investigated the cardiopulmonary effects of BMP9 in neonatal Wistar rats with hyperoxia-induced BPD. Methods: Directly after birth Wistar rat pups were exposed to 100% oxygen for 10 days. From day 2 rat pups received BMP9 (2.5 μg/kg, twice a day) or 0.9% NaCl by subcutaneous injection. Beneficial effects of BMP9 on aberrant alveolar development, lung inflammation and fibrosis, and right ventricular hypertrophy (RVH) were investigated by morphometric analysis and cytokine production. In addition, differential mRNA expression of BMP9 and its receptor complex: ALK1, BMPR2, and Endoglin, and of the ALK1 downstream target transmembrane protein 100 (TMEM100) were studied during the development of experimental BPD. Expression of the BMP9 receptor complex and TMEM100 was studied in human endothelial and epithelial cell cultures and the effect of BMP9 on inflammatory cytokine production and TMEM100 expression was studied in endothelial cell cultures. Results:ALK1, ALK2, BMPRII, TMEM100, and Endoglin were differentially expressed in experimental BPD, suggesting a role for BMP9-dependent signaling in the development of (experimental) BPD. TMEM100 was expressed in the wall of blood vessels, showing an elastin-like expression pattern in arterioles. Expression of TMEM100 mRNA and protein was decreased after exposure to hyperoxia. BMP9 treatment of rat pups with hyperoxia-induced experimental BPD reduced alveolar enlargement, lung septal thickness and fibrosis, and prevented inflammation, but did not attenuate vascular remodeling and RVH. The anti-inflammatory effect of BMP9 was confirmed in vitro. Highest expression of ALK1, BMPR2, and TMEM100 was observed in human endothelial cell cultures. Stimulation of human endothelial cell cultures with BMP9 reduced their pro-inflammatory cytokine response and induced TMEM100 expression in pulmonary arterial endothelial cells. Conclusion: BMP9 protects against neonatal hyperoxia-induced BPD by improving aberrant alveolar development, inflammation and fibrosis, demonstrating its therapeutic potential for premature infants with severe BPD.
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Affiliation(s)
- Xueyu Chen
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Mar Orriols
- Department of Molecular Cell Biology, Cancer Genomics Center Netherlands, Leiden University Medical CenterLeiden, Netherlands
| | - Frans J Walther
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands.,Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical CenterTorrance, CA, United States
| | - El Houari Laghmani
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Annemarie M Hoogeboom
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Anne C B Hogen-Esch
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical CenterLeiden, Netherlands
| | - Gert Folkerts
- Department of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht UniversityUtrecht, Netherlands
| | - Marie-José T H Goumans
- Department of Molecular Cell Biology, Cancer Genomics Center Netherlands, Leiden University Medical CenterLeiden, Netherlands
| | - Peter Ten Dijke
- Department of Molecular Cell Biology, Cancer Genomics Center Netherlands, Leiden University Medical CenterLeiden, Netherlands
| | - Nicholas W Morrell
- Department of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke's and Papworth HospitalsCambridge, United Kingdom
| | - Gerry T M Wagenaar
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
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22
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Schneider JP, Arkenau M, Knudsen L, Wedekind D, Ochs M. Lung remodeling in aging surfactant protein D deficient mice. Ann Anat 2017; 211:158-175. [DOI: 10.1016/j.aanat.2017.01.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 01/23/2017] [Accepted: 01/24/2017] [Indexed: 01/13/2023]
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Blindbæk SL, Schlosser A, Green A, Holmskov U, Sorensen GL, Grauslund J. Association between microfibrillar-associated protein 4 (MFAP4) and micro- and macrovascular complications in long-term type 1 diabetes mellitus. Acta Diabetol 2017; 54:367-372. [PMID: 28039584 DOI: 10.1007/s00592-016-0953-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/12/2016] [Indexed: 01/26/2023]
Abstract
AIMS To evaluate microfibrillar-associated protein 4 (MFAP4) as a marker of micro- and macrovascular complications in patients with type 1 diabetes. METHODS This cross-sectional study included 203 persons with a long duration of type 1 diabetes from a population-based cohort ascertained in the former Funen County, Denmark. Detection of plasma-MFAP4 (pMFAP4) was performed by the AlphaLISA Technique. Diabetic retinopathy (DR) was graded in accordance with the Early Treatment Diabetic Retinopathy Study adaptation of the modified Airlie House classification. A monofilament test was used to test for neuropathy, and nephropathy was evaluated in a single spot urine sample. Data describing macrovascular disease were obtained from the Danish National Patient Register. RESULTS Median age and duration of diabetes were 58.7 and 43 years, respectively, and 61% were males. High levels of pMFAP4 were found in participants of old age, in women and in non-smokers (p < 0.05). In a multiple logistic regression model, patients with high levels of pMFAP4 were more likely to have diabetic neuropathy (OR 2.47 for quartile 4 versus quartile 1, 95% CI 1.01-6.03). No association was found between pMFAP4 and proliferative diabetic retinopathy, nephropathy or macrovascular disease. CONCLUSIONS No association between pMFAP4 and macrovascular vascular complications was found. However, high levels of pMFAP4 correlated independently with diabetic neuropathy. Further studies on the predictive value of increased circulating MFAP4 in diabetic neuropathy are warranted.
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Affiliation(s)
- S L Blindbæk
- Department of Ophthalmology, Odense University Hospital, Sdr. Boulevard 29, 5000, Odense C, Denmark.
| | - A Schlosser
- Department of Cancer and Inflammation, Institute of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 21-25, 5000, Odense C, Denmark
| | - A Green
- OPEN, Odense Patient data Exploratory Network, Odense University Hospital, J.B. Winsløws Vej 9 A, 3rd floor, 5000, Odense C, Denmark
- OPEN, Odense Patient data Exploratory Network, Department of Clinical Research, University of Southern Denmark, J.B. Winsløws Vej 9 A, 3rd floor, 5000, Odense C, Denmark
| | - U Holmskov
- Department of Cancer and Inflammation, Institute of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 21-25, 5000, Odense C, Denmark
| | - G L Sorensen
- Department of Cancer and Inflammation, Institute of Molecular Medicine, University of Southern Denmark, J.B. Winsløws Vej 21-25, 5000, Odense C, Denmark
| | - J Grauslund
- Department of Ophthalmology, Odense University Hospital, Sdr. Boulevard 29, 5000, Odense C, Denmark
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Bracht T, Mölleken C, Ahrens M, Poschmann G, Schlosser A, Eisenacher M, Stühler K, Meyer HE, Schmiegel WH, Holmskov U, Sorensen GL, Sitek B. Evaluation of the biomarker candidate MFAP4 for non-invasive assessment of hepatic fibrosis in hepatitis C patients. J Transl Med 2016; 14:201. [PMID: 27378383 PMCID: PMC4932744 DOI: 10.1186/s12967-016-0952-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 06/21/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The human microfibrillar-associated protein 4 (MFAP4) is located to extracellular matrix fibers and plays a role in disease-related tissue remodeling. Previously, we identified MFAP4 as a serum biomarker candidate for hepatic fibrosis and cirrhosis in hepatitis C patients. The aim of the present study was to elucidate the potential of MFAP4 as biomarker for hepatic fibrosis with a focus on the differentiation of no to moderate (F0-F2) and severe fibrosis stages and cirrhosis (F3 and F4, Desmet-Scheuer scoring system). METHODS MFAP4 levels were measured using an AlphaLISA immunoassay in a retrospective study including n = 542 hepatitis C patients. We applied a univariate logistic regression model based on MFAP4 serum levels and furthermore derived a multivariate model including also age and gender. Youden-optimal cutoffs for binary classification were determined for both models without restrictions and considering a lower limit of 80 % sensitivity (correct classification of F3 and F4), respectively. To assess the generalization error, leave-one-out cross validation (LOOCV) was performed. RESULTS MFAP4 levels were shown to differ between no to moderate fibrosis stages F0-F2 and severe stages (F3 and F4) with high statistical significance (t test on log scale, p value <2.2·10(-16)). In the LOOCV, the univariate classification resulted in 85.8 % sensitivity and 54.9 % specificity while the multivariate model yielded 81.3 % sensitivity and 61.5 % specificity (restricted approaches). CONCLUSIONS We confirmed the applicability of MFAP4 as a novel serum biomarker for assessment of hepatic fibrosis and identification of high-risk patients with severe fibrosis stages in hepatitis C. The combination of MFAP4 with existing tests might lead to a more accurate non-invasive diagnosis of hepatic fibrosis and allow a cost-effective disease management in the era of new direct acting antivirals.
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Affiliation(s)
- Thilo Bracht
- />Medizinisches Proteom-Center, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Christian Mölleken
- />Department of Gastroenterology and Hepatology, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil, Bochum, Germany
| | - Maike Ahrens
- />Medizinisches Proteom-Center, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Gereon Poschmann
- />Molecular Proteomics Laboratory (MPL), Biologisch-Medizinisches Forschungszentrum (BMFZ), Heinrich-Heine-Universität, Düsseldorf, Germany
| | - Anders Schlosser
- />Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Martin Eisenacher
- />Medizinisches Proteom-Center, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Kai Stühler
- />Molecular Proteomics Laboratory (MPL), Biologisch-Medizinisches Forschungszentrum (BMFZ), Heinrich-Heine-Universität, Düsseldorf, Germany
| | - Helmut E. Meyer
- />Medizinisches Proteom-Center, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Wolff H. Schmiegel
- />Department of Gastroenterology and Hepatology, Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil, Bochum, Germany
| | - Uffe Holmskov
- />Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Grith L. Sorensen
- />Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Barbara Sitek
- />Medizinisches Proteom-Center, Ruhr-Universität Bochum, 44801 Bochum, Germany
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Xue T, Liu P, Zhou Y, Liu K, Yang L, Moritz RL, Yan W, Xu LX. Interleukin-6 Induced "Acute" Phenotypic Microenvironment Promotes Th1 Anti-Tumor Immunity in Cryo-Thermal Therapy Revealed By Shotgun and Parallel Reaction Monitoring Proteomics. Am J Cancer Res 2016; 6:773-94. [PMID: 27162549 PMCID: PMC4860887 DOI: 10.7150/thno.14394] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 02/08/2016] [Indexed: 12/14/2022] Open
Abstract
Cryo-thermal therapy has been emerged as a promising novel therapeutic strategy for advanced breast cancer, triggering higher incidence of tumor regression and enhanced remission of metastasis than routine treatments. To better understand its anti-tumor mechanism, we utilized a spontaneous metastatic mouse model and quantitative proteomics to compare N-glycoproteome changes in 94 serum samples with and without treatment. We quantified 231 highly confident N-glycosylated proteins using iTRAQ shotgun proteomics. Among them, 53 showed significantly discriminated regulatory patterns over the time course, in which the acute phase response emerged as the most enhanced pathway. The anti-tumor feature of the acute response was further investigated using parallel reaction monitoring target proteomics and flow cytometry on 23 of the 53 significant proteins. We found that cryo-thermal therapy reset the tumor chronic inflammation to an “acute” phenotype, with up-regulation of acute phase proteins including IL-6 as a key regulator. The IL-6 mediated “acute” phenotype transformed IL-4 and Treg-promoting ICOSL expression to Th1-promoting IFN-γ and IL-12 production, augmented complement system activation and CD86+MHCII+ dendritic cells maturation and enhanced the proliferation of Th1 memory cells. In addition, we found an increased production of tumor progression and metastatic inhibitory proteins under such “acute” environment, favoring the anti-metastatic effect. Moreover, cryo-thermal on tumors induced the strongest “acute” response compared to cryo/hyperthermia alone or cryo-thermal on healthy tissues, accompanying by the most pronounced anti-tumor immunological effect. In summary, we demonstrated that cryo-thermal therapy induced, IL-6 mediated “acute” microenvironment shifted the tumor chronic microenvironment from Th2 immunosuppressive and pro-tumorigenic to Th1 immunostimulatory and tumoricidal state. Moreover, the magnitude of “acute” and “danger” signals play a key role in determining the efficacy of anti-tumor activity.
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Milićević NM, Schmidt F, Kunz N, Kalies K, Milićević Ž, Schlosser A, Holmskov U, Sorensen GL, Westermann J. The role of microfibrillar-associated protein 4 (MFAP4) in the formation and function of splenic compartments during embryonic and adult life. Cell Tissue Res 2016; 365:135-45. [DOI: 10.1007/s00441-016-2374-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 02/01/2016] [Indexed: 11/24/2022]
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Pilecki B, Holm AT, Schlosser A, Moeller JB, Wohl AP, Zuk AV, Heumüller SE, Wallis R, Moestrup SK, Sengle G, Holmskov U, Sorensen GL. Characterization of Microfibrillar-associated Protein 4 (MFAP4) as a Tropoelastin- and Fibrillin-binding Protein Involved in Elastic Fiber Formation. J Biol Chem 2015; 291:1103-14. [PMID: 26601954 DOI: 10.1074/jbc.m115.681775] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 11/06/2022] Open
Abstract
MFAP4 (microfibrillar-associated protein 4) is an extracellular glycoprotein found in elastic fibers without a clearly defined role in elastic fiber assembly. In the present study, we characterized molecular interactions between MFAP4 and elastic fiber components. We established that MFAP4 primarily assembles into trimeric and hexameric structures of homodimers. Binding analysis revealed that MFAP4 specifically binds tropoelastin and fibrillin-1 and -2, as well as the elastin cross-linking amino acid desmosine, and that it co-localizes with fibrillin-1-positive fibers in vivo. Site-directed mutagenesis disclosed residues Phe(241) and Ser(203) in MFAP4 as being crucial for type I collagen, elastin, and tropoelastin binding. Furthermore, we found that MFAP4 actively promotes tropoelastin self-assembly. In conclusion, our data identify MFAP4 as a new ligand of microfibrils and tropoelastin involved in proper elastic fiber organization.
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Affiliation(s)
- Bartosz Pilecki
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark
| | - Anne T Holm
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark
| | - Anders Schlosser
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark
| | - Jesper B Moeller
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark
| | | | | | - Stefanie E Heumüller
- the Center for Biochemistry, Faculty of Medicine and the Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany
| | - Russell Wallis
- the Department of Infection, Immunity and Inflammation, and Department of Molecular and Cell Biology, University of Leicester, Leicester LE1 9HN, United Kingdom, and
| | - Soren K Moestrup
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark, the Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense C, Denmark
| | - Gerhard Sengle
- the Center for Biochemistry, Faculty of Medicine and the Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany
| | - Uffe Holmskov
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark
| | - Grith L Sorensen
- From the Department of Cancer and Inflammation Research, Institute of Molecular Medicine, Faculty of Health Sciences, University of Southern Denmark, 5000 Odense C, Denmark,
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Schlosser A, Pilecki B, Hemstra LE, Kejling K, Kristmannsdottir GB, Wulf-Johansson H, Moeller JB, Füchtbauer EM, Nielsen O, Kirketerp-Møller K, Dubey LK, Hansen PBL, Stubbe J, Wrede C, Hegermann J, Ochs M, Rathkolb B, Schrewe A, Bekeredjian R, Wolf E, Gailus-Durner V, Fuchs H, Hrabě de Angelis M, Lindholt JS, Holmskov U, Sorensen GL. MFAP4 Promotes Vascular Smooth Muscle Migration, Proliferation and Accelerates Neointima Formation. Arterioscler Thromb Vasc Biol 2015; 36:122-33. [PMID: 26564819 DOI: 10.1161/atvbaha.115.306672] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 10/29/2015] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Arterial injury stimulates remodeling responses that, when excessive, lead to stenosis. These responses are influenced by integrin signaling in vascular smooth muscle cells (VSMCs). Microfibrillar-associated protein 4 (MFAP4) is an integrin ligand localized to extracellular matrix fibers in the vascular wall. The role of MFAP4 in vascular biology is unknown. We aimed to test the hypothesis that MFAP4 would enhance integrin-dependent VSMC activation. APPROACH AND RESULTS We produced Mfap4-deficient (Mfap4(-/-)) mice and performed carotid artery ligation to explore the role of MFAP4 in vascular biology in vivo. Furthermore, we investigated the effects of MFAP4 in neointimal formation ex vivo and in primary VSMC and monocyte cultures in vitro. When challenged with carotid artery ligation, Mfap4(-/-) mice exhibited delayed neointimal formation, accompanied by early reduction in the number of proliferating medial and neointimal cells, as well as infiltrating leukocytes. Delayed neointimal formation was associated with decreased cross-sectional area of ligated Mfap4(-/-) carotid arteries resulting in lumen narrowing 28 days after ligation. MFAP4 blockade prohibited the formation of neointimal hyperplasia ex vivo. Moreover, we demonstrated that MFAP4 is a ligand for integrin αVβ3 and mediates VSMC phosphorylation of focal adhesion kinase, migration, and proliferation in vitro. MFAP4-dependent VSMC activation was reversible by treatment with MFAP4-blocking antibodies and inhibitors of focal adhesion kinase and downstream kinases. In addition, we showed that MFAP4 promotes monocyte chemotaxis in integrin αVβ3-dependent manner. CONCLUSIONS MFAP4 regulates integrin αVβ3-induced VSMC proliferation and migration, as well as monocyte chemotaxis, and accelerates neointimal hyperplasia after vascular injury.
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Affiliation(s)
- Anders Schlosser
- From the Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark (A.S., B.P., L.E.H., K.K., G.B.K., H.W.-J., J.B.M., K.K.-M., L.K.D., P.B.L.H., J.S., U.H, G.L.S.); Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark (E.-M.F.); Department of Pathology, Odense University Hospital, Odense, Denmark (O.N.); Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany (C.W., J.H., M.O.); Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany (C.W., J.H., M.O.); REBIRTH Cluster of Excellence, Hannover, Germany (C.W., J.H., M.O.); German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany (B.R., A.S., V.G.-D., H.F., M.H.d.A.); Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-University München, Munich, Germany (B.R, E.W.); Division of Cardiology, Department of Medicine III, University of Heidelberg, Heidelberg, Germany (A.S., R.B.); Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Munich, Germany (M.H.d.A.); Cardiovascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); and Department of Cardiothoracic and Vascular Surgery, Center of Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark (J.S.L.)
| | - Bartosz Pilecki
- From the Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark (A.S., B.P., L.E.H., K.K., G.B.K., H.W.-J., J.B.M., K.K.-M., L.K.D., P.B.L.H., J.S., U.H, G.L.S.); Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark (E.-M.F.); Department of Pathology, Odense University Hospital, Odense, Denmark (O.N.); Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany (C.W., J.H., M.O.); Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany (C.W., J.H., M.O.); REBIRTH Cluster of Excellence, Hannover, Germany (C.W., J.H., M.O.); German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany (B.R., A.S., V.G.-D., H.F., M.H.d.A.); Institute of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-University München, Munich, Germany (B.R, E.W.); Division of Cardiology, Department of Medicine III, University of Heidelberg, Heidelberg, Germany (A.S., R.B.); Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Munich, Germany (M.H.d.A.); Cardiovascular Research Unit, Viborg Hospital, Viborg, Denmark (J.S.L.); and Department of Cardiothoracic and Vascular Surgery, Center of Individualized Medicine in Arterial Diseases (CIMA), Odense University Hospital, Odense, Denmark (J.S.L.)
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Sækmose SG, Mössner B, Christensen PB, Lindvig K, Schlosser A, Holst R, Barington T, Holmskov U, Sorensen GL. Microfibrillar-Associated Protein 4: A Potential Biomarker for Screening for Liver Fibrosis in a Mixed Patient Cohort. PLoS One 2015; 10:e0140418. [PMID: 26460565 PMCID: PMC4604125 DOI: 10.1371/journal.pone.0140418] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 09/26/2015] [Indexed: 12/11/2022] Open
Abstract
Background and Aims A method for assessment of liver fibrosis and cirrhosis without the need for a liver biopsy is desirable. Microfibrillar-associated protein 4 (MFAP4) is a suggested biomarker for identification of high-risk patients with severe fibrosis stages. This study aimed to examine associations between plasma MFAP4 (pMFAP4) and transient elastography or chronic hepatitis C virus infection in drug users and in a mixed patient cohort with increased risk of liver disease. Moreover, the study aimed to identify comorbidities that significantly influence pMFAP4. Methods pMFAP4 was measured in samples from 351 drug users attending treatment centres and from 248 acutely hospitalized medical patients with mixed diagnoses. Linear and logistic multivariate regression analyses were performed and nonparametric receiver operating characteristic-curves for cirrhosis were used to estimate cut-off points for pMFAP4. Univariate and subgroup analyses were performed using non-parametric methods. Results pMFAP4 increased significantly with liver fibrosis score. pMFAP4 was significantly associated with chronic viral infection in the drug users and with transient elastography in both cohorts. In the mixed patient cohort, pMFAP4 was significantly increased among patients with a previous diagnosis of liver disease or congestive heart failure compared to patients with other diagnoses. Conclusions pMFAP4 has the potential to be used as an outreach-screening tool for liver fibrosis in drug users and in mixed medical patients. pMFAP4 level is positively associated with transient elastography, but additional studies are warranted to validate the possible use of pMFAP4 in larger cohorts and in combination with transient elastography.
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Affiliation(s)
- Susanne Gjørup Sækmose
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Clinical Immunology, Naestved Hospital, Naestved, Denmark
| | - Belinda Mössner
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
| | | | - Kristoffer Lindvig
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
| | - Anders Schlosser
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - René Holst
- Department of Biostatistics, Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Torben Barington
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
- Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark
| | - Uffe Holmskov
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Grith Lykke Sorensen
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- * E-mail:
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30
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Pilecki B, Schlosser A, Wulf-Johansson H, Trian T, Moeller JB, Marcussen N, Aguilar-Pimentel JA, de Angelis MH, Vestbo J, Berger P, Holmskov U, Sorensen GL. Microfibrillar-associated protein 4 modulates airway smooth muscle cell phenotype in experimental asthma. Thorax 2015; 70:862-72. [PMID: 26038533 DOI: 10.1136/thoraxjnl-2014-206609] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 05/20/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Recently, several proteins of the extracellular matrix have been characterised as active contributors to allergic airway disease. Microfibrillar-associated protein 4 (MFAP4) is an extracellular matrix protein abundant in the lung, whose biological functions remain poorly understood. In the current study we investigated the role of MFAP4 in experimental allergic asthma. METHODS MFAP4-deficient mice were subjected to alum/ovalbumin and house dust mite induced models of allergic airway disease. In addition, human healthy and asthmatic primary bronchial smooth muscle cell cultures were used to evaluate MFAP4-dependent airway smooth muscle responses. RESULTS MFAP4 deficiency attenuated classical hallmarks of asthma, such as eosinophilic inflammation, eotaxin production, airway remodelling and hyperresponsiveness. In wild-type mice, serum MFAP4 was increased after disease development and correlated with local eotaxin levels. MFAP4 was expressed in human bronchial smooth muscle cells and its expression was upregulated in asthmatic cells. Regarding the underlying mechanism, we showed that MFAP4 interacted with integrin αvβ5 and promoted asthmatic bronchial smooth muscle cell proliferation and CCL11 release dependent on phosphatidyloinositol-3-kinase but not extracellular signal-regulated kinase pathway. CONCLUSIONS MFAP4 promoted the development of asthmatic airway disease in vivo and pro-asthmatic functions of bronchial smooth muscle cells in vitro. Collectively, our results identify MFAP4 as a novel contributor to experimental asthma, acting through modulation of airway smooth muscle cells.
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Affiliation(s)
- Bartosz Pilecki
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Anders Schlosser
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Helle Wulf-Johansson
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Thomas Trian
- Department of Pharmacology, Bordeaux University, Cardio-thoracic Research Centre, U1045, Bordeaux, France
| | - Jesper B Moeller
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Niels Marcussen
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Juan A Aguilar-Pimentel
- German Research Center for Environmental Health, German Mouse Clinic and Institute of Experimental Genetics, Helmholtz Zentrum Munich, Neuherberg, Germany Department of Dermatology and Allergology am Biederstein, University Hospital Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Martin Hrabe de Angelis
- German Research Center for Environmental Health, German Mouse Clinic and Institute of Experimental Genetics, Helmholtz Zentrum Munich, Neuherberg, Germany Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technical University Munich, Freising-Weihenstephan, Germany
| | - Jorgen Vestbo
- Department of Respiratory Medicine, Gentofte Hospital, Hellerup, Denmark Manchester Academic Health Science Centre, University Hospital South Manchester NHS Foundation Trust, Manchester, UK
| | - Patrick Berger
- Department of Pharmacology, Bordeaux University, Cardio-thoracic Research Centre, U1045, Bordeaux, France Department of Lung Function Testing, Department of Thoracic Chirurgy, Department of Anatomy and Pathology, CHU Bordeaux Teaching Hospital, Pessac, France
| | - Uffe Holmskov
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Grith L Sorensen
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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