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Zhong X, Shang J, Zhang R, Zhang X, Yu L, Niu H, Duan X. Explore the shared molecular mechanism between dermatomyositis and nasopharyngeal cancer by bioinformatic analysis. PLoS One 2024; 19:e0296034. [PMID: 38753689 PMCID: PMC11098312 DOI: 10.1371/journal.pone.0296034] [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: 07/31/2023] [Accepted: 12/04/2023] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Dermatomyositis (DM) is prone to nasopharyngeal carcinoma (NPC), but the mechanism is unclear. This study aimed to explore the potential pathogenesis of DM and NPC. METHODS The datasets GSE46239, GSE142807, GSE12452, and GSE53819 were downloaded from the GEO dataset. The disease co-expression module was obtained by R-package WGCNA. We built PPI networks for the key modules. ClueGO was used to analyze functional enrichment for the key modules. DEG analysis was performed with the R-package "limma". R-package "pROC" was applied to assess the diagnostic performance of hub genes. MiRNA-mRNA networks were constructed using MiRTarBase and miRWalk databases. RESULTS The key modules that positively correlated with NPC and DM were found. Its intersecting genes were enriched in the negative regulation of viral gene replication pathway. Similarly, overlapping down-regulated DEGs in DM and NPC were also enriched in negatively regulated viral gene replication. Finally, we identified 10 hub genes that primarily regulate viral biological processes and type I interferon responses. Four key genes (GBP1, IFIH1, IFIT3, BST2) showed strong diagnostic performance, with AUC>0.8. In both DM and NPC, the expression of key genes was correlated with macrophage infiltration level. Based on hub genes' miRNA-mRNA network, hsa-miR-146a plays a vital role in DM-associated NPC. CONCLUSIONS Our research discovered pivot genes between DM and NPC. Viral gene replication and response to type I interferon may be the crucial bridge between DM and NPC. By regulating hub genes, MiR-146a will provide new strategies for diagnosis and treatment in DM complicated by NPC patients. For individuals with persistent viral replication in DM, screening for nasopharyngeal cancer is necessary.
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Affiliation(s)
- Xiuqin Zhong
- Department of rheumatology and immunology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Jingjing Shang
- Department of rheumatology and immunology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Rongwei Zhang
- Department of rheumatology and immunology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xiuling Zhang
- Department of rheumatology and immunology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Le Yu
- Department of rheumatology and immunology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Haitao Niu
- School of Medicine, Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Guangzhou Key Laboratory of Germ-free Animals and Microbiota Application, Jinan University, Guangzhou, China
| | - Xinwang Duan
- Department of rheumatology and immunology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
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Naschberger E, Flierl C, Huang J, Erkert L, Gamez-Belmonte R, Gonzalez-Acera M, Bober M, Mehnert M, Becker C, Schellerer VS, Britzen-Laurent N, Stürzl M. Analysis of the interferon-γ-induced secretome of intestinal endothelial cells: putative impact on epithelial barrier dysfunction in IBD. Front Cell Dev Biol 2023; 11:1213383. [PMID: 37645250 PMCID: PMC10460912 DOI: 10.3389/fcell.2023.1213383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/31/2023] [Indexed: 08/31/2023] Open
Abstract
The development of inflammatory bowel diseases (IBD) involves the breakdown of two barriers: the epithelial barrier and the gut-vascular barrier (GVB). The destabilization of each barrier can promote initiation and progression of the disease. Interestingly, first evidence is available that both barriers are communicating through secreted factors that may accordingly serve as targets for therapeutic modulation of barrier functions. Interferon (IFN)-γ is among the major pathogenesis factors in IBD and can severely impair both barriers. In order to identify factors transmitting signals from the GVB to the epithelial cell barrier, we analyzed the secretome of IFN-γ-treated human intestinal endothelial cells (HIEC). To this goal, HIEC were isolated in high purity from normal colon tissues. HIEC were either untreated or stimulated with IFN-γ (10 U/mL). After 48 h, conditioned media (CM) were harvested and subjected to comparative hyper reaction monitoring mass spectrometry (HRM™ MS). In total, 1,084 human proteins were detected in the HIEC-CM. Among these, 43 proteins were present in significantly different concentrations between the CM of IFN-γ- and control-stimulated HIEC. Several of these proteins were also differentially expressed in various murine colitis models as compared to healthy animals supporting the relevance of these proteins secreted by inflammatory activated HIEC in the inter-barrier communication in IBD. The angiocrine pathogenic impact of these differentially secreted HIEC proteins on the epithelial cell barrier and their perspectives as targets to treat IBD by modulation of trans-barrier communication is discussed in detail.
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Affiliation(s)
- Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Christian Flierl
- Division of Molecular and Experimental Surgery, Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Jinghao Huang
- Division of Molecular and Experimental Surgery, Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Lena Erkert
- Department of Medicine I, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Reyes Gamez-Belmonte
- Department of Medicine I, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Miguel Gonzalez-Acera
- Department of Medicine I, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | | | | | - Christoph Becker
- Department of Medicine I, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Vera S. Schellerer
- Department of Pediatric Surgery, University Medicine Greifswald, Greifswald, Germany
| | - Nathalie Britzen-Laurent
- Division of Surgical Research, Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Department of Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Universitätsklinikum Erlangen, Erlangen, Germany
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3
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Kokame GT, Yannuzzi NA, Shantha JG, Yamane M, Relhan N, Gross J, Ryan EH, Flynn HW. INVOLUTION OF NEOVASCULAR AGE-RELATED MACULAR DEGENERATION AFTER ENDOPHTHALMITIS. Retin Cases Brief Rep 2021; 15:495-499. [PMID: 30932994 PMCID: PMC6765457 DOI: 10.1097/icb.0000000000000866] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
PURPOSE To report patients who demonstrated an alteration in the clinical and optical coherence tomography features of neovascular age-related macular degeneration after resolution of endophthalmitis. METHODS Retrospective case series of the subsequent changes in the macula and need for anti-vascular endothelial growth factor therapy in patients with neovascular age-related macular degeneration who developed endophthalmitis after intravitreal injection. RESULTS The study included seven eyes of seven patients with follow-up ranging between 3 months and 11 years. The vitreous cultures (n = 7) before intravitreal antibiotic injection were the following: culture-negative (4) and coagulase-negative Staphylococcus (3). Initial treatment included vitreous tap and injection (4) and pars plana vitrectomy (3). In 5/7 eyes, the optical coherence tomography showed resolution of subretinal fluid and serous pigment epithelial detachment, and there was no additional anti-vascular endothelial growth factor treatment administered. CONCLUSION After successful treatment of endophthalmitis in patients with neovascular age-related macular degeneration, there was relative involution of the maculopathy and reduced anti-vascular endothelial growth factor treatment burden in this series.
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Affiliation(s)
- Gregg T Kokame
- Division of Ophthalmology, Department of Surgery, University of Hawaii School of Medicine, Honolulu, Hawaii
- The Retina Center at Pali Momi, Aiea, Hawaii
- Retina Consultants of Hawaii, Aiea, Hawaii
- Hawaii Macula and Retina Institute, Aiea, Hawaii
- John A. Burns School of Medicine, University of Hawaii School of Medicine, Honolulu, Hawaii
| | - Nicolas A Yannuzzi
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Jessica G Shantha
- The Retina Center at Pali Momi, Aiea, Hawaii
- Retina Consultants of Hawaii, Aiea, Hawaii
- Hawaii Macula and Retina Institute, Aiea, Hawaii
- Department of Ophthalmology, University of California San Francisco, Francis I. Proctor Foundation, San Francisco, California
| | - Maya Yamane
- Columbia University College of Physicians and Surgeons, New York, New York
| | - Nidhi Relhan
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Jeffrey Gross
- Carolina Retina Center, Columbia, South Carolina; and
| | | | - Harry W Flynn
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida
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4
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Luque-Martin R, Angell DC, Kalxdorf M, Bernard S, Thompson W, Eberl HC, Ashby C, Freudenberg J, Sharp C, Van den Bossche J, de Jonge WJ, Rioja I, Prinjha RK, Neele AE, de Winther MPJ, Mander PK. IFN-γ Drives Human Monocyte Differentiation into Highly Proinflammatory Macrophages That Resemble a Phenotype Relevant to Psoriasis. THE JOURNAL OF IMMUNOLOGY 2021; 207:555-568. [PMID: 34233910 DOI: 10.4049/jimmunol.2001310] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 05/09/2021] [Indexed: 02/07/2023]
Abstract
As key cells of the immune system, macrophages coordinate the activation and regulation of the immune response. Macrophages present a complex phenotype that can vary from homeostatic, proinflammatory, and profibrotic to anti-inflammatory phenotypes. The factors that drive the differentiation from monocyte to macrophage largely define the resultant phenotype, as has been shown by the differences found in M-CSF- and GM-CSF-derived macrophages. We explored alternative inflammatory mediators that could be used for in vitro differentiation of human monocytes into macrophages. IFN-γ is a potent inflammatory mediator produced by lymphocytes in disease and infections. We used IFN-γ to differentiate human monocytes into macrophages and characterized the cells at a functional and proteomic level. IFN-γ alone was sufficient to generate macrophages (IFN-γ Mϕ) that were phagocytic and responsive to polarization. We demonstrate that IFN-γ Mϕ are potent activators of T lymphocytes that produce IL-17 and IFN-γ. We identified potential markers (GBP-1, IP-10, IL-12p70, and IL-23) of IFN-γ Mϕ and demonstrate that these markers are enriched in the skin of patients with inflamed psoriasis. Collectively, we show that IFN-γ can drive human monocyte to macrophage differentiation, leading to bona fide macrophages with inflammatory characteristics.
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Affiliation(s)
- Rosario Luque-Martin
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam Cardiovascular Sciences, Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Davina C Angell
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | | | - Sharon Bernard
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | - William Thompson
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | | | - Charlotte Ashby
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | | | - Catriona Sharp
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | - Jan Van den Bossche
- Department of Molecular Cell Biology and Immunology, Amsterdam Cardiovascular Sciences, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; and
| | - Wouter J de Jonge
- Tytgat Institute for Liver and Intestinal Research, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Inmaculada Rioja
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | - Rab K Prinjha
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom
| | - Annette E Neele
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam Cardiovascular Sciences, Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Menno P J de Winther
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam Cardiovascular Sciences, Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Palwinder K Mander
- Immuno-Epigenetics, Adaptive Immunity Research Unit, GSK Medicines Research Centre, Stevenage, United Kingdom;
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Healthy and preeclamptic pregnancies show differences in Guanylate-Binding Protein-1 plasma levels. Pregnancy Hypertens 2021; 25:18-24. [PMID: 34022623 DOI: 10.1016/j.preghy.2021.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 04/23/2021] [Accepted: 05/08/2021] [Indexed: 02/05/2023]
Abstract
The large interferon-inducible anti-angiogenic pro-inflammatory GTPase Guanylate Binding Protein-1 (GBP-1) is produced and secreted by activated endothelial cells and is highly induced by inflammatory cytokines and inhibited by angiogenic growth factors. During pregnancy a generalized mild inflammatory response is observed. During preeclampsia this generalized inflammatory response is even further activated and activation of the endothelium occurs. We hypothesized that GBP-1 is increased in healthy pregnancy and will be even further increased during preeclampsia. In the first experiment, plasma and placentas were collected from healthy and preeclamptic pregnancies. Plasma was also collected from non-pregnant women. For the second experiment longitudinal blood samples from women with a healthy or preeclamptic pregnancy were collected from the end of the first trimester until birth and one sample postpartum. The plasma GBP-1 levels were measured by ELISA and GBP-1 mRNA and protein levels in the placenta were tested by qPCR and immunohistochemistry. During pregnancy higher plasma concentrations of GBP-1 compared with non-pregnant women were observed. Surprisingly, during preeclampsia, plasma GBP-1 levels were lower than in control pregnancies and similar to the level of non-pregnant controls. Placental GBP-1 mRNA levels were not different between healthy and preeclamptic pregnancies and GBP-1 protein was virtually undetectable in the trophoblast by immunohistochemistry in placental tissue. Evaluation of longitudinal samples showed that plasma GBP-1 concentrations increased towards the end of pregnancy in healthy pregnancies, but not in preeclampsia. In line with our hypothesis, we found higher GBP-1 plasma levels during healthy pregnancy. However, plasma GBP-1 did not further increase during preeclampsia, but was stable. Further studies are needed to evaluate why GBP-1 does not increase during preeclampsia.
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6
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Haque M, Siegel RJ, Fox DA, Ahmed S. Interferon-stimulated GTPases in autoimmune and inflammatory diseases: promising role for the guanylate-binding protein (GBP) family. Rheumatology (Oxford) 2021; 60:494-506. [PMID: 33159795 DOI: 10.1093/rheumatology/keaa609] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/16/2020] [Accepted: 08/23/2020] [Indexed: 12/14/2022] Open
Abstract
Human IFNs are secreted cytokines shown to stimulate the expression of over one thousand genes. These IFN-inducible genes primarily encode four major protein families, known as IFN-stimulated GTPases (ISGs), namely myxovirus-resistance proteins, guanylate-binding proteins (GBPs), p47 immunity-related GTPases and very large inducible guanosine triphosphate hydrolases (GTPases). These families respond specifically to type I or II IFNs and are well reported in coordinating immunity against some well known as well as newly discovered viral, bacterial and parasitic infections. A growing body of evidence highlights the potential contributory and regulatory roles of ISGs in dysregulated inflammation and autoimmune diseases. Our focus was to draw attention to studies that demonstrate increased expression of ISGs in the serum and affected tissues of patients with RA, SS, lupus, IBD and psoriasis. In this review, we analysed emerging literature describing the potential roles of ISGs, particularly the GBP family, in the context of autoimmunity. We also highlighted the promise and implications for therapeutically targeting IFNs and GBPs in the treatment of rheumatic diseases.
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Affiliation(s)
- Mahamudul Haque
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy, Spokane, WA, USA
| | - Ruby J Siegel
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy, Spokane, WA, USA
| | - David A Fox
- Division of Rheumatology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Salahuddin Ahmed
- Department of Pharmaceutical Sciences, Washington State University College of Pharmacy, Spokane, WA, USA.,Division of Rheumatology, University of Washington School of Medicine, Seattle, WA, USA
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Yamakita I, Mimae T, Tsutani Y, Miyata Y, Ito A, Okada M. Guanylate binding protein 1 (GBP-1) promotes cell motility and invasiveness of lung adenocarcinoma. Biochem Biophys Res Commun 2019; 518:266-272. [PMID: 31421831 DOI: 10.1016/j.bbrc.2019.08.045] [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: 07/30/2019] [Accepted: 08/08/2019] [Indexed: 01/06/2023]
Abstract
Previously, we identified molecules involved in human invasive lung adenocarcinoma, and guanylate-binding protein 1 (GBP-1) was selected for further analysis. RT-PCR of normal lung and invasive lung adenocarcinoma tissue samples showed that the relative GBP-1 expression levels normalized to GAPDH for invasive lung adenocarcinoma were three-fold higher than those for normal lung samples (P < 0.05). GBP-1 gene and protein expression levels were also higher in mesenchymal-like than in epithelial-like lung adenocarcinoma cell lines. To determine whether GBP-1 participates in lung adenocarcinoma invasion, we performed migration and wound healing assays using RERF-LC-OK cells transfected with various siRNAs. The relative migration of transfected GBP1-siRNA1 and GBP1-siRNA2 cells was significantly lower than that of transfected control-siRNA cells. The relative wound healing capacities 6 and 12 h after cells transfected with GBP1-siRNA1 and GBP1-siRNA2 were scratched were significantly lower than those of the control-siRNA cells. Immunohistochemistry of 80 patients with Stage I lung adenocarcinoma revealed that non-invasive cells were GBP-1 negative in all cases. Invasive cells were GBP-1 positive in 10 cases (12.5%) and GBP-1 negative in 70 cases (87.5%). Lymphatic-vascular invasion was positive in 20 patients (25%) and positively correlated with GBP-1 expression (P < 0.05). In conclusion, GBP-1 may enhance lung adenocarcinoma invasiveness by promoting cell motility, and control of GBP-1 expression has the potential to contribute to the development of new therapeutic strategies for lung adenocarcinoma.
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Affiliation(s)
- Ichiko Yamakita
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Takahiro Mimae
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.
| | - Yasuhiro Tsutani
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yoshihiro Miyata
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Akihiko Ito
- Department of Pathology, Faculty of Medicine, Kinki University, Osaka, Japan
| | - Morihito Okada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.
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8
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Abu-Halima M, Kahraman M, Henn D, Rädle-Hurst T, Keller A, Abdul-Khaliq H, Meese E. Deregulated microRNA and mRNA expression profiles in the peripheral blood of patients with Marfan syndrome. J Transl Med 2018. [PMID: 29530068 PMCID: PMC5848586 DOI: 10.1186/s12967-018-1429-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background MicroRNAs (miRNAs) are small RNAs regulating gene expression post-transcriptionally. While acquired changes of miRNA and mRNA profiles in cancer have been extensively studied, little is known about expression changes of circulating miRNAs and messenger RNAs (mRNA) in monogenic constitutional anomalies affecting several organ systems, like Marfan syndrome (MFS). We performed integrated miRNA and mRNA expression profiling in blood samples of Marfan patients in order to investigate deregulated miRNA and mRNA networks in these patients which could serve as potential diagnostic and prognostic tools for MFS therapy. Methods MiRNA and mRNA expression profiles were determined in blood samples from MFS patients (n = 7) and from healthy volunteer controls (n = 7) by microarray analysis. Enrichment analyses of altered mRNA expression were identified using bioinformatic tools. Results A total of 28 miRNAs and 32 mRNAs were found to be significantly altered in MFS patients compared to controls (> 2.0-fold change, adjusted P < 0.05). The expression of 11 miRNA and 6 mRNA candidates was validated by RT-qPCR in an independent cohort of 26 MFS patients and 26 matched HV controls. Significant inverse correlations were evident between 8 miRNAs and 5 mRNAs involved in vascular pathology, inflammation and telomerase regulation. Significant positive correlations were present for 7 miRNAs with age, for 2 miRNAs with the MFS aortic root status (Z-score) and for 7 miRNAs with left ventricular end-diastolic diameter in MFS patients. In addition, miR-331-3p was significantly up-regulated in MFS patients without mitral valve prolapse (MVP) as compared with patients with MVP. Conclusions Our data show deregulated gene and miRNA expression profiles in the peripheral blood of MFS patients, demonstrating several candidates for prognostic biomarkers for cardiovascular manifestations in MFS as well as targets for novel therapeutic approaches. A deregulation of miRNA expression seems to play an important role in MFS, highlighting the plethora of effects on post-transcriptional regulation of miRNAs and mRNAs initiated by constitutional mutations in single genes. Trial registration Nr: EA2/131/10. Registered 28 December, 2010 Electronic supplementary material The online version of this article (10.1186/s12967-018-1429-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Masood Abu-Halima
- Institute of Human Genetics, Saarland University, 66421, Homburg/Saar, Germany.
| | - Mustafa Kahraman
- Chair for Clinical Bioinformatics, Saarland University, 66041, Saarbrücken, Germany
| | - Dominic Henn
- Department of Hand, Plastic and Reconstructive Surgery, BG Trauma Center Ludwigshafen, University of Heidelberg, 67071, Ludwigshafen, Germany
| | - Tanja Rädle-Hurst
- Department of Pediatric Cardiology, Saarland University Medical Center, 66421, Homburg/Saar, Germany
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, 66041, Saarbrücken, Germany
| | - Hashim Abdul-Khaliq
- Department of Pediatric Cardiology, Saarland University Medical Center, 66421, Homburg/Saar, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, 66421, Homburg/Saar, Germany
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9
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Sohrabi Y, Volkova V, Kobets T, Havelková H, Krayem I, Slapničková M, Demant P, Lipoldová M. Genetic Regulation of Guanylate-Binding Proteins 2b and 5 during Leishmaniasis in Mice. Front Immunol 2018; 9:130. [PMID: 29467757 PMCID: PMC5808352 DOI: 10.3389/fimmu.2018.00130] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/16/2018] [Indexed: 01/25/2023] Open
Abstract
Interferon-induced GTPases [guanylate-binding proteins (GBPs)] play an important role in inflammasome activation and mediate innate resistance to many intracellular pathogens, but little is known about their role in leishmaniasis. We therefore studied expression of Gbp2b/Gbp1 and Gbp5 mRNA in skin, inguinal lymph nodes, spleen, and liver after Leishmania major infection and in uninfected controls. We used two different groups of related mouse strains: BALB/c, STS, and CcS-5, CcS-16, and CcS-20 that carry different combinations of BALB/c and STS genomes, and strains O20, C57BL/10 (B10) and B10.O20, OcB-9, and OcB-43 carrying different combinations of O20 and B10 genomes. The strains were classified on the basis of size and number of infection-induced skin lesions as highly susceptible (BALB/c, CcS-16), susceptible (B10.O20), intermediate (CcS-20), and resistant (STS, O20, B10, OcB-9, OcB-43). Some uninfected strains differed in expression of Gbp2b/Gbp1 and Gbp5, especially of Gbp2b/Gbp1 in skin. Uninfected BALB/c and STS did not differ in their expression, but in CcS-5, CcS-16, and CcS-20, which all carry BALB/c-derived Gbp gene-cluster, expression of Gbp2b/Gbp1 exceeds that of both parents. These data indicate trans-regulation of Gbps. Infection resulted in approximately 10× upregulation of Gbp2b/Gbp1 and Gbp5 mRNAs in organs of both susceptible and resistant strains, which was most pronounced in skin. CcS-20 expressed higher level of Gbp2b/Gbp1 than both parental strains in skin, whereas CcS-16 expressed higher level of Gbp2b/Gbp1 than both parental strains in skin and liver. This indicates a trans-regulation present in infected mice CcS-16 and CcS-20. Immunostaining of skin of five strains revealed in resistant and intermediate strains STS, CcS-5, O20, and CcS-20 tight co-localization of Gbp2b/Gbp1 protein with most L. major parasites, whereas in the highly susceptible strain, BALB/c most parasites did not associate with Gbp2b/Gbp1. In conclusion, expression of Gbp2b/Gbp1 and Gbp5 was increased even in organs of clinically asymptomatic resistant mice. It suggests a hidden inflammation, which might contribute to control of persisting parasites. This is supported by the co-localization of Gbpb2/Gbp1 protein and L. major parasites in skin of resistant and intermediate but not highly susceptible mice.
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Affiliation(s)
- Yahya Sohrabi
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Valeryia Volkova
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Tatyana Kobets
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Helena Havelková
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Imtissal Krayem
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Martina Slapničková
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Peter Demant
- Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, NY, United States
| | - Marie Lipoldová
- Laboratory of Molecular and Cellular Immunology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
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10
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Naschberger E, Geißdörfer W, Bogdan C, Tripal P, Kremmer E, Stürzl M, Britzen-Laurent N. Processing and secretion of guanylate binding protein-1 depend on inflammatory caspase activity. J Cell Mol Med 2017; 21:1954-1966. [PMID: 28272793 PMCID: PMC5571548 DOI: 10.1111/jcmm.13116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 12/28/2016] [Indexed: 12/13/2022] Open
Abstract
Human guanylate binding protein‐1 (GBP‐1) belongs to the family of large GTPases. The expression of GBP‐1 is inducible by inflammatory cytokines, and the protein is involved in inflammatory processes and host defence against cellular pathogens. GBP‐1 is the first GTPase which was described to be secreted by eukaryotic cells. Here, we report that precipitation of GBP‐1 with GMP‐agarose from cell culture supernatants co‐purified a 47‐kD fragment of GBP‐1 (p47‐GBP‐1) in addition to the 67‐kD full‐length form. MALDI‐TOF sequencing revealed that p47‐GBP‐1 corresponds to the C‐terminal helical part of GBP‐1 and lacks most of the globular GTPase domain. In silico analyses of protease target sites, together with cleavage experiments in vitro and in vivo, showed that p67‐GBP‐1 is cleaved by the inflammatory caspases 1 and 5, leading to the formation of p47‐GBP‐1. Furthermore, the secretion of p47‐GBP‐1 was found to occur via a non‐classical secretion pathway and to be dependent on caspase‐1 activity but independent of inflammasome activation. Finally, we showed that p47‐GBP‐1 represents the predominant form of secreted GBP‐1, both in cell culture supernatants and, in vivo, in the cerebrospinal fluid of patients with bacterial meningitis, indicating that it may represent the biologically active form of extracellular GBP‐1. These findings confirm the involvement of caspase‐1 in non‐classical secretion mechanisms and open novel perspectives for the extracellular function of secreted GBP‐1.
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Affiliation(s)
- Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Department of Surgery, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Translational Research Center, Erlangen, Germany
| | - Walter Geißdörfer
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Christian Bogdan
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Philipp Tripal
- Division of Molecular and Experimental Surgery, Department of Surgery, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Translational Research Center, Erlangen, Germany
| | - Elisabeth Kremmer
- Institute of Molecular Immunology, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Munich, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Department of Surgery, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Translational Research Center, Erlangen, Germany
| | - Nathalie Britzen-Laurent
- Division of Molecular and Experimental Surgery, Department of Surgery, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Translational Research Center, Erlangen, Germany
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11
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Lundberg M, Krogvold L, Kuric E, Dahl-Jørgensen K, Skog O. Expression of Interferon-Stimulated Genes in Insulitic Pancreatic Islets of Patients Recently Diagnosed With Type 1 Diabetes. Diabetes 2016; 65:3104-10. [PMID: 27422384 DOI: 10.2337/db16-0616] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/08/2016] [Indexed: 11/13/2022]
Abstract
A primary insult to the pancreatic islets of Langerhans, leading to the activation of innate immunity, has been suggested as an important step in the inflammatory process in type 1 diabetes (T1D). The aim of this study was to examine whether interferon (IFN)-stimulated genes (ISGs) are overexpressed in human T1D islets affected with insulitis. By using laser capture microdissection and a quantitative PCR array, 23 of 84 examined ISGs were found to be overexpressed by at least fivefold in insulitic islets from living patients with recent-onset T1D, participating in the Diabetes Virus Detection (DiViD) study, compared with islets from organ donors without diabetes. Most of the overexpressed ISGs, including GBP1, TLR3, OAS1, EIF2AK2, HLA-E, IFI6, and STAT1, showed higher expression in the islet core compared with the peri-islet area containing the surrounding immune cells. In contrast, the T-cell attractant chemokine CXCL10 showed an almost 10-fold higher expression in the peri-islet area than in the islet, possibly partly explaining the localization of T cells mainly to this region. In conclusion, insulitic islets from recent-onset T1D subjects show overexpression of ISGs, with an expression pattern similar to that seen in islets infected with virus or exposed to IFN-γ/interleukin-1β or IFN-α.
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Affiliation(s)
- Marcus Lundberg
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Lars Krogvold
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Enida Kuric
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Knut Dahl-Jørgensen
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Oskar Skog
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
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12
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Kwegyir-Afful AK, Bruno RD, Purushottamachar P, Murigi FN, Njar VCO. Galeterone and VNPT55 disrupt Mnk-eIF4E to inhibit prostate cancer cell migration and invasion. FEBS J 2016; 283:3898-3918. [PMID: 27618366 DOI: 10.1111/febs.13895] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 08/16/2016] [Accepted: 09/09/2016] [Indexed: 12/28/2022]
Abstract
Metastatic castration-resistant prostate cancer (mCRPC) accounts for a high percentage of prostate cancer mortality. The proprietary compound galeterone (gal) was designed to inhibit proliferation of androgen/androgen receptor (AR)-dependent prostate cancer cell in vitro and in vivo and is currently in phase III clinical development. Additionally, clinical studies with gal revealed its superb efficacy in four different cohorts of patients with mCRPC, including those expressing splice variant AR-V7. Preclinical studies with gal show that it also exhibits strong antiproliferative activities against AR-negative prostate cancer cells and tumors through a mechanism involving phosphorylation of eIF2α, which forms an integral component of the eukaryotic mRNA translation complex. Thus, we hypothesized that gal and its new analog, VNPT55, could modulate oncogenic mRNA translation and prostate cancer cell migration and invasion. We report that gal and VNPT55 profoundly inhibit migration and invasion of prostate cancer cells, possibly by down-regulating protein expression of several EMT markers (Snail, Slug, N-cadherin, vimentin, and MMP-2/-9) via antagonizing the Mnk-eIF4E axis. In addition, gal/VNPT55 inhibited both NF-κB and Twist1 transcriptional activities, down-regulating Snail and BMI-1 mRNA expression, respectively. Furthermore, profound up-regulation of E-cadherin mRNA and protein expression may explain the observed significant inhibition of prostate cancer cell migration and invasion. Moreover, expression of self-renewal proteins, β-catenin, CD44, and Nanog, was markedly depleted. Analysis of gal/VNPT55-treated CWR22Rv1 xenograft tissue sections also revealed that observations in vitro were recapitulated in vivo. Our results suggest that gal/VNPT55 could become promising agents for the prevention and/or treatment of all stages of prostate cancer.
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Affiliation(s)
- Andrew K Kwegyir-Afful
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.,Center for Biomolecular Therapeutics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Robert D Bruno
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.,Center for Biomolecular Therapeutics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Puranik Purushottamachar
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.,Center for Biomolecular Therapeutics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Francis N Murigi
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.,Center for Biomolecular Therapeutics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Vincent C O Njar
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.,Center for Biomolecular Therapeutics, University of Maryland School of Medicine, Baltimore, MD, USA.,Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
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13
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Abstract
In the normal brain, immune cell trafficking and immune responses are strictly controlled and limited. This unique homeostatic equilibrium, also called brain immune quiescence, is crucial to maintaining proper brain functions and is altered in various pathological processes, from chronic immunopathological disorders to cognitive and psychiatric impairments. To date, the precise nature of factors regulating the brain/immune system interrelationship is poorly understood. In the present study, we demonstrate that one of these regulating factors is Connexin 43 (Cx43), a gap junction protein highly expressed by astrocytes at the blood-brain barrier (BBB) interface. We show that, by setting the activated state of cerebral endothelium, astroglial Cx43 controls immune recruitment as well as antigen presentation mechanisms in the mouse brain. Consequently, in the absence of astroglial Cx43, recruited immune cells elaborate a specific humoral autoimmune response against the von Willebrand factor A domain-containing protein 5a, an extracellular matrix protein of the brain. Altogether, our results demonstrate that Cx43 is a new astroglial factor promoting the immune quiescence of the brain.
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Pharmacokinetic and Pharmacodynamic Relationship of AMG 811, An Anti-IFN-γ IgG1 Monoclonal Antibody, in Patients with Systemic Lupus Erythematosus. Pharm Res 2014; 32:640-53. [DOI: 10.1007/s11095-014-1492-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 08/15/2014] [Indexed: 01/03/2023]
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15
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Hoyo-Becerra C, Liu Z, Yao J, Kaltwasser B, Gerken G, Hermann DM, Schlaak JF. Rapid Regulation of Depression-Associated Genes in a New Mouse Model Mimicking Interferon-α-Related Depression in Hepatitis C Virus Infection. Mol Neurobiol 2014; 52:318-29. [PMID: 25159480 DOI: 10.1007/s12035-014-8861-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 08/11/2014] [Indexed: 12/11/2022]
Abstract
Major depression is a serious side effect of interferon-α (IFN-α), which is used in the therapy of hepatitis C virus (HCV) infection. Due to the lack of reproducible animal models, the mechanisms underlying IFN-α-related depression are largely unknown. We herein established a mouse model, in which murine IFN-α (250 IU/day) and polyinosinic/polycytidylic acid (poly(I:C); 1 μg/day), a toll-like receptor-3 (TLR3) agonist that mimics the effect of HCV double-strand RNA, were continuously infused into the lateral ventricle via miniosmotic pumps over up to 14 days. The delivery of IFN-α and poly(I:C), but not of IFN-α or poly(I:C) alone, resulted in a reproducible depression-like state that was characterized by reduced exploration behavior in open-field tests, increased immobility in tail suspension and forced swimming tests, and a moderate loss of body weight. In the hippocampus and prefrontal cortex, the pro-inflammatory genes TNF-α, IL-6, tissue inhibitor of metalloproteinases-1 (Timp-1), CXC motif ligand-1 (Cxcl1), Cxcl10, and CC motif ligand-5 (Ccl5) were synergistically induced by IFN-α and poly(I:C), most pronounced after 14-day exposure. In comparison, the interferon-inducible genes of signal transducer and activator of transcription-1 (Stat1), guanylate binding protein-1 (Gbp1), proteasome subunit-β type-9 (Psmb9), ubiquitin-conjugating enzyme E2L-6 (Ube2l6), receptor transporter protein-4 (Rtp4), and GTP cyclohydrolase-1 (Gch1), which had previously been elevated in the blood of IFN-α-treated patients developing depression, in the brains of suicidal individuals, and in primary neurons exposed to IFN-α and poly(I:C), were induced even earlier, reaching maximum levels mostly after 24 hours. We propose that interferon-inducible genes might be useful markers of imminent depression.
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Affiliation(s)
- Carolina Hoyo-Becerra
- Department of Gastroenterology and Hepatology, University Hospital Essen, Essen, Germany
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16
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Horch RE, Hohenberger W, Eweida A, Kneser U, Weber K, Arkudas A, Merkel S, Göhl J, Beier JP. A hundred patients with vertical rectus abdominis myocutaneous (VRAM) flap for pelvic reconstruction after total pelvic exenteration. Int J Colorectal Dis 2014; 29:813-23. [PMID: 24752738 DOI: 10.1007/s00384-014-1868-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/02/2014] [Indexed: 02/04/2023]
Abstract
PURPOSE We analysed the outcomes of a series of 100 consecutive patients with anorectal cancer with neoadjuvant radiochemotherapy and abdominoperineal exstirpation or total pelvic exenteration, who received a transpelvic vertical rectus abdominis myocutaneous (VRAM) flap for pelvic, vaginal and/or perineal reconstruction and compare a cohort to patients without VRAM flaps. METHODS Within a 10-year period (2003-2013) in our institution 924 patients with rectal cancer stage y0 to y IV were surgically treated. Data of those 100 consecutive patients who received a transpelvic VRAM flap were collected and compared to patients without flaps. RESULTS In 100 consecutive patients with transpelvic VRAM flaps, major donor site complications occurred in 6 %, VRAM-specific perineal wound complications were observed in 11 % of the patients and overall 30-day mortality was 2 %. CONCLUSIONS The VRAM flap is a reliable and safe method for pelvic reconstruction in patients with advanced disease requiring pelvic exenteration and irradiation, with a relatively low rate of donor and recipient site complications. In this first study, to compare a large number of patients with VRAM flap reconstruction to patients without pelvic VRAM flap reconstruction, a clear advantage of simultaneous pelvic reconstruction is demonstrated.
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Affiliation(s)
- R E Horch
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich Alexander University Erlangen-Nuernberg, Krankenhausstrasse 12, 91054, Erlangen, Germany,
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17
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Murakami M, Hashida Y, Imajoh M, Maeda A, Kamioka M, Senda Y, Sato T, Fujieda M, Wakiguchi H, Daibata M. PCR array analysis of gene expression profiles in chronic active Epstein-Barr virus infection. Microbes Infect 2014; 16:581-6. [PMID: 24801498 DOI: 10.1016/j.micinf.2014.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 03/18/2014] [Accepted: 04/22/2014] [Indexed: 12/31/2022]
Abstract
To determine the host cellular gene expression profiles in chronic active Epstein-Barr virus infection (CAEBV), peripheral blood samples were obtained from three patients with CAEBV and investigated using a PCR array analysis that focused on T-cell/B-cell activation. We identified six genes with expression levels that were tenfold higher in CAEBV patients compared with those in healthy controls. These results were verified by quantitative reverse transcription-PCR. We identified four highly upregulated genes, i.e., IL-10, IL-2, IFNGR1, and INHBA. These genes may be involved in inflammatory responses and cell proliferation, and they may contribute to the development and progression of CAEBV.
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Affiliation(s)
- Masanao Murakami
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Yumiko Hashida
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Masayuki Imajoh
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Akihiko Maeda
- Department of Pediatrics, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Mikio Kamioka
- Department of Laboratory Medicine, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Yasutaka Senda
- Faculty of Medicine, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Tetsuya Sato
- Department of Pediatrics, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Mikiya Fujieda
- Department of Pediatrics, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Hiroshi Wakiguchi
- Department of Pediatrics, Kochi Medical School, Kochi University, Kochi 783-8505, Japan
| | - Masanori Daibata
- Department of Microbiology and Infection, Kochi Medical School, Kochi University, Kochi 783-8505, Japan.
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18
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Ostler N, Britzen-Laurent N, Liebl A, Naschberger E, Lochnit G, Ostler M, Forster F, Kunzelmann P, Ince S, Supper V, Praefcke GJK, Schubert DW, Stockinger H, Herrmann C, Stürzl M. Gamma interferon-induced guanylate binding protein 1 is a novel actin cytoskeleton remodeling factor. Mol Cell Biol 2014; 34:196-209. [PMID: 24190970 PMCID: PMC3911287 DOI: 10.1128/mcb.00664-13] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/22/2013] [Accepted: 10/28/2013] [Indexed: 02/07/2023] Open
Abstract
Gamma interferon (IFN-γ) regulates immune defenses against viruses, intracellular pathogens, and tumors by modulating cell proliferation, migration, invasion, and vesicle trafficking processes. The large GTPase guanylate binding protein 1 (GBP-1) is among the cellular proteins that is the most abundantly induced by IFN-γ and mediates its cell biologic effects. As yet, the molecular mechanisms of action of GBP-1 remain unknown. Applying an interaction proteomics approach, we identified actin as a strong and specific binding partner of GBP-1. Furthermore, GBP-1 colocalized with actin at the subcellular level and was both necessary and sufficient for the extensive remodeling of the fibrous actin structure observed in IFN-γ-exposed cells. These effects were dependent on the oligomerization and the GTPase activity of GBP-1. Purified GBP-1 and actin bound to each other, and this interaction was sufficient to impair the formation of actin filaments in vitro, as demonstrated by atomic force microscopy, dynamic light scattering, and fluorescence-monitored polymerization. Cosedimentation and band shift analyses demonstrated that GBP-1 binds robustly to globular actin and slightly to filamentous actin. This indicated that GBP-1 may induce actin remodeling via globular actin sequestering and/or filament capping. These results establish GBP-1 as a novel member within the family of actin-remodeling proteins specifically mediating IFN-γ-dependent defense strategies.
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Affiliation(s)
- Nicole Ostler
- Division of Molecular and Experimental Surgery, University Medical Center Erlangen, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Nathalie Britzen-Laurent
- Division of Molecular and Experimental Surgery, University Medical Center Erlangen, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Andrea Liebl
- Division of Molecular and Experimental Surgery, University Medical Center Erlangen, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, University Medical Center Erlangen, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Günter Lochnit
- Faculty of Medicine, Institute of Biochemistry, Justus Liebig University, Giessen, Germany
| | - Markus Ostler
- Institute of Physics, Chemnitz University of Technology, Chemnitz, Germany
| | - Florian Forster
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Peter Kunzelmann
- Institute of Polymer Materials, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Semra Ince
- Physical Chemistry I, Ruhr University Bochum, Bochum, Germany
| | - Verena Supper
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Dirk W. Schubert
- Institute of Polymer Materials, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Hannes Stockinger
- Molecular Immunology Unit, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Michael Stürzl
- Division of Molecular and Experimental Surgery, University Medical Center Erlangen, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
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Experimental total wrapping of breast implants with acellular dermal matrix: a preventive tool against capsular contracture in breast surgery? J Plast Reconstr Aesthet Surg 2013; 66:1382-9. [PMID: 23764323 DOI: 10.1016/j.bjps.2013.05.020] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 05/05/2013] [Indexed: 11/20/2022]
Abstract
BACKGROUND Capsular contracture remains a hitherto unsolved complication after implantation of silicone gel-filled breast prostheses. Based on clinical and experimental data, the use of an acellular dermal matrix as a sheath around implants may lead to lesser capsular contracture acting as a proposed biological environment mimicking wound bed tissue. The aim of our study was to analyse the tissue reaction after implantation of silicone prosthesis with and without an envelope of acellular dermal matrix. METHODS Implantation of 60 silicone prostheses in the back of Lewis rats were carried out, randomly paired taking one rat from group A and one from group B. Group A included implants completely enveloped with xenogenic acellular dermis and group B undraped silicone implants. At 3, 6 and 12 weeks postoperatively, the samples were explanted and subjected to histological and immunohistochemical evaluation. RESULTS A new myofibroblast tissue layer was identified in proximity to the implant in both groups. The thickness of the layer in group A was continuously thinner than in group B regarding the different explantation time points. Implants completely wrapped with acellular dermal matrix showed significantly lesser inflammatory signs at 3 and 12 weeks after implantation compared to controls. Cell proliferation after 12 weeks was significantly decreased in group A. CONCLUSION The slight myofibroblast layer and reduced rate of inflammation and proliferation in the treatment group show a positive effect of total acellular dermal matrix envelope and hypothesise the decrease of capsular contracture in long-term periods.
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Schnürer S, Beier JP, Croner R, Rieker RJ, Horch RE. [Pathogenesis, classification and diagnosis of necrotizing soft tissue infections]. Chirurg 2013; 83:943-52. [PMID: 23011149 DOI: 10.1007/s00104-012-2281-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Necrotizing soft tissue infections are caused by a variety of pathogens and may affect different types of soft tissue. Even today mortality and lethality are very high. The primary symptoms of necrotizing soft tissue infections are local pain out of proportion, swelling, erythema and crepitation in cases of subcutaneous gas. A systemic inflammatory response syndrome (SIRS) is often associated. During the last decades early recognition and initiation of an adequate therapy were able to reduce lethality to an average of 20%. The physical examination remains the diagnostic gold standard and may be supported by typical findings of imaging technologies, e.g. subcutaneous gas on x-rays and laboratory tests. After diagnosis an adequate antibiotic and surgical therapy should be performed immediately.
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Affiliation(s)
- S Schnürer
- Plastisch- und Handchirurgische Klinik, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland.
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21
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Eweida AM, Lang W, Schmitz M, Horch RE. Salvage of a free radial forearm flap by creation of an arteriovenous fistula at the distal arterial pedicle. Microsurgery 2013; 33:391-5. [DOI: 10.1002/micr.22089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 12/18/2012] [Accepted: 12/21/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmad M. Eweida
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine; University Hospital Erlangen; Friedrich Alexander University of Erlangen-Nuremberg; Germany
- Department of Head and Neck and Endocrine Surgery; Faculty of Medicine; University of Alexandria; Egypt
| | - Werner Lang
- Department of Vascular Surgery; University Hospital Erlangen; Friedrich Alexander University of Erlangen-Nuremberg; Germany
| | - Marweh Schmitz
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine; University Hospital Erlangen; Friedrich Alexander University of Erlangen-Nuremberg; Germany
| | - Raymund E. Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine; University Hospital Erlangen; Friedrich Alexander University of Erlangen-Nuremberg; Germany
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Bleiziffer O, Hammon M, Arkudas A, Taeger CD, Beier JP, Amann K, Naschberger E, Stürzl M, Horch RE, Kneser U. Guanylate-binding protein 1 expression from embryonal endothelial progenitor cells reduces blood vessel density and cellular apoptosis in an axially vascularised tissue-engineered construct. BMC Biotechnol 2012; 12:94. [PMID: 23217187 PMCID: PMC3610105 DOI: 10.1186/1472-6750-12-94] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 11/07/2012] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Guanylate binding protein-1 (GBP-1) is a large GTPase which is actively secreted by endothelial cells. It is a marker and intracellular inhibitor of endothelial cell proliferation, migration, and invasion. We previously demonstrated that stable expression of GBP-1 in murine endothelial progenitor cells (EPC) induces their premature differentiation and decreases their migration capacity in vitro and in vivo. The goal of the present study was to assess the antiangiogenic capacity of EPC expressing GBP-1 (GBP-1-EPC) and their impact on blood vessel formation in an axially vascularized 3-D bioartificial construct in vivo. RESULTS Functional in vitro testing demonstrated a significant increase in VEGF secretion by GBP-1-EPC after induction of cell differentiation. Undifferentiated GBP-1-EPC, however, did not secrete increased levels of VEGF compared to undifferentiated control EPC expressing an empty vector (EV-EPC). In our In vivo experiments, we generated axially vascularized tissue-engineered 3-D constructs. The new vascular network arises from an arterio-venous loop (AVL) embedded in a fibrin matrix inside a separation chamber. Total surface area of the construct as calculated from cross sections was larger after transplantation of GBP-1-EPC compared to control EV-EPC. This indicated reduced formation of fibrovascular tissue and less resorption of fibrin matrix compared to constructs containing EV-EPC. Most notably, the ratio of blood vessel surface area over total construct surface area in construct cross sections was significantly reduced in the presence of GBP-1-EPC. This indicates a significant reduction of blood vessel density and thereby inhibition of blood vessel formation from the AVL constructs caused by GBP-1. In addition, GBP-1 expressed from EPC significantly reduced cell apoptosis compared to GBP-1-negative controls. CONCLUSION Transgenic EPC expressing the proinflammatory antiangiogenic GTPase GBP-1 can reduce blood vessel density and inhibit apoptosis in a developing bioartificial vascular network and may become a new powerful tool to manipulate angiogenetic processes in tissue engineering and other pathological conditions such as tumour angiogenesis.
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Affiliation(s)
- Oliver Bleiziffer
- Department of Plastic and Hand Surgery, University of Erlangen-Nuremberg, Krankenhausstr 12 91054, Erlangen, Germany.
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Combinatorial polymer electrospun matrices promote physiologically-relevant cardiomyogenic stem cell differentiation. PLoS One 2011; 6:e28935. [PMID: 22216144 PMCID: PMC3246450 DOI: 10.1371/journal.pone.0028935] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Accepted: 11/17/2011] [Indexed: 01/08/2023] Open
Abstract
Myocardial infarction results in extensive cardiomyocyte death which can lead to fatal arrhythmias or congestive heart failure. Delivery of stem cells to repopulate damaged cardiac tissue may be an attractive and innovative solution for repairing the damaged heart. Instructive polymer scaffolds with a wide range of properties have been used extensively to direct the differentiation of stem cells. In this study, we have optimized the chemical and mechanical properties of an electrospun polymer mesh for directed differentiation of embryonic stem cells (ESCs) towards a cardiomyogenic lineage. A combinatorial polymer library was prepared by copolymerizing three distinct subunits at varying molar ratios to tune the physicochemical properties of the resulting polymer: hydrophilic polyethylene glycol (PEG), hydrophobic poly(ε-caprolactone) (PCL), and negatively-charged, carboxylated PCL (CPCL). Murine ESCs were cultured on electrospun polymeric scaffolds and their differentiation to cardiomyocytes was assessed through measurements of viability, intracellular reactive oxygen species (ROS), α-myosin heavy chain expression (α-MHC), and intracellular Ca(2+) signaling dynamics. Interestingly, ESCs on the most compliant substrate, 4%PEG-86%PCL-10%CPCL, exhibited the highest α-MHC expression as well as the most mature Ca(2+) signaling dynamics. To investigate the role of scaffold modulus in ESC differentiation, the scaffold fiber density was reduced by altering the electrospinning parameters. The reduced modulus was found to enhance α-MHC gene expression, and promote maturation of myocyte Ca(2+) handling. These data indicate that ESC-derived cardiomyocyte differentiation and maturation can be promoted by tuning the mechanical and chemical properties of polymer scaffold via copolymerization and electrospinning techniques.
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