1
|
Makabe K, Okada H, Tachibana N, Ishikura H, Ito N, Tanaka M, Chijimatsu R, Terashima A, Yano F, Asaka M, Yanagihara D, Taketomi S, Matsumoto T, Tanaka S, Omata Y, Saito T. Baricitinib ameliorates inflammatory and neuropathic pain in collagen antibody-induced arthritis mice by modulating the IL-6/JAK/STAT3 pathway and CSF-1 expression in dorsal root ganglion neurons. Arthritis Res Ther 2024; 26:121. [PMID: 38879555 PMCID: PMC11179219 DOI: 10.1186/s13075-024-03354-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 06/11/2024] [Indexed: 06/19/2024] Open
Abstract
BACKGROUND Janus kinase (JAK) inhibitors, such as baricitinib, are widely used to treat rheumatoid arthritis (RA). Clinical studies show that baricitinib is more effective at reducing pain than other similar drugs. Here, we aimed to elucidate the molecular mechanisms underlying the pain relief conferred by baricitinib, using a mouse model of arthritis. METHODS We treated collagen antibody-induced arthritis (CAIA) model mice with baricitinib, celecoxib, or vehicle, and evaluated the severity of arthritis, histological findings of the spinal cord, and pain-related behaviours. We also conducted RNA sequencing (RNA-seq) to identify alterations in gene expression in the dorsal root ganglion (DRG) following baricitinib treatment. Finally, we conducted in vitro experiments to investigate the direct effects of baricitinib on neuronal cells. RESULTS Both baricitinib and celecoxib significantly decreased CAIA and improved arthritis-dependent grip-strength deficit, while only baricitinib notably suppressed residual tactile allodynia as determined by the von Frey test. CAIA induction of inflammatory cytokines in ankle synovium, including interleukin (IL)-1β and IL-6, was suppressed by treatment with either baricitinib or celecoxib. In contrast, RNA-seq analysis of the DRG revealed that baricitinib, but not celecoxib, restored gene expression alterations induced by CAIA to the control condition. Among many pathways changed by CAIA and baricitinib treatment, the interferon-alpha/gamma, JAK-signal transducer and activator of transcription 3 (STAT3), and nuclear factor kappa B (NF-κB) pathways were considerably decreased in the baricitinib group compared with the celecoxib group. Notably, only baricitinib decreased the expression of colony-stimulating factor 1 (CSF-1), a potent cytokine that causes neuropathic pain through activation of the microglia-astrocyte axis in the spinal cord. Accordingly, baricitinib prevented increases in microglia and astrocytes caused by CAIA. Baricitinib also suppressed JAK/STAT3 pathway activity and Csf1 expression in cultured neuronal cells. CONCLUSIONS Our findings demonstrate the effects baricitinib has on the DRG in relation to ameliorating both inflammatory and neuropathic pain.
Collapse
Affiliation(s)
- Kenta Makabe
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Hiroyuki Okada
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Naohiro Tachibana
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Hisatoshi Ishikura
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Norihito Ito
- Japan Drug Development and Medical Affairs, Eli Lilly Japan K.K, 5-1-28 Isogami-Dori, Chuo-Ku, Kobe, 651-0086, Japan
| | - Masaru Tanaka
- Japan Drug Development and Medical Affairs, Eli Lilly Japan K.K, 5-1-28 Isogami-Dori, Chuo-Ku, Kobe, 651-0086, Japan
| | - Ryota Chijimatsu
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Asuka Terashima
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Fumiko Yano
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Meiko Asaka
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-Ku, Tokyo, 153-8902, Japan
| | - Dai Yanagihara
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-Ku, Tokyo, 153-8902, Japan
| | - Shuji Taketomi
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Takumi Matsumoto
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Sakae Tanaka
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Yasunori Omata
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan
- Bone and Cartilage Regenerative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Taku Saito
- Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-Ku, Tokyo, 113-8655, Japan.
| |
Collapse
|
2
|
Thapa P, Jiang H, Ding N, Hao Y, Alshahrani A, Lee EY, Fujii J, Wei Q. Loss of Peroxiredoxin IV Protects Mice from Azoxymethane/Dextran Sulfate Sodium-Induced Colorectal Cancer Development. Antioxidants (Basel) 2023; 12:677. [PMID: 36978925 PMCID: PMC10045277 DOI: 10.3390/antiox12030677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/20/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Peroxiredoxin IV (Prx4), a typical two-cysteine-containing member of the peroxidase family, functions as an antioxidant to maintain cellular redox homeostasis through the reduction of reactive oxygen species (ROS) via cycles of oxidation-reduction reactions. Under oxidative stress, all Prxs including Prx4 are inactivated as their catalytic cysteines undergo hyperoxidation, and hyperoxidized two-cysteine Prxs can be exclusively repaired and revitalized through the reduction cycle catalyzed by sulfiredoxin (Srx). Previously, we showed that Prx4 is a preferred substrate of Srx, and knockout of Srx in mice leads to resistance to azoxymethane/dextran sulfate sodium (AOM/DSS)-induced colon carcinogenesis. To further understand the significance of the Srx/Prx4 axis in colorectal cancer development, Prx4-/- mice were established and subjected to standard AOM/DSS protocol. Compared with wildtype littermates, mice with Prx4-/- genotype had significantly fewer and smaller tumors. Histopathological analysis revealed that loss of Prx4 leads to increased cell death through lipid peroxidation and lower infiltration of inflammatory cells in the knockout tumors compared to wildtype. Treatment with DSS alone also showed decreased infiltration of macrophages and lymphocytes in the colon of knockout mice, suggesting a role for Prx4 in inflammatory response. In addition, loss of Prx4 caused alterations in plasma cytokines and chemokines after DSS and AOM/DSS treatments. These findings suggest that loss of Prx4 protects mice from AOM/DSS-induced colon tumorigenesis. Thus, targeting Prx4 may provide novel strategies for colon cancer prevention and treatment.
Collapse
Affiliation(s)
- Pratik Thapa
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Hong Jiang
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Na Ding
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Yanning Hao
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Aziza Alshahrani
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Eun Y. Lee
- Department of Pathology and Laboratory Medicine, University of Kentucky College of Medicine, Lexington, KY 40506, USA
| | - Junichi Fujii
- Department of Biomolecular Function, Yamagata University, Yamagata 990-9585, Japan
| | - Qiou Wei
- Department of Toxicology and Cancer Biology, University of Kentucky College of Medicine, Lexington, KY 40506, USA
- Markey Cancer Center, University of Kentucky College of Medicine, Lexington, KY 40536, USA
| |
Collapse
|
3
|
Abstract
Two decades of research have established that Nuclear Factor-κB (NF-κB) signaling plays a critical role in reprogramming the fat cell transcriptome towards inflammation in response to overnutrition and metabolic stress. Several groups have suggested that inhibition of NF-κB signaling could have metabolic benefits for obesity-associated adipose tissue inflammation. However, two significant problems arise with this approach. The first is how to deliver general NF-κB inhibitors into adipocytes without allowing these compounds to disrupt normal functioning in cells of the immune system. The second issue is that general inhibition of canonical NF-κB signaling in adipocytes will likely lead to a massive increase in adipocyte apoptosis under conditions of metabolic stress, leading full circle into a secondary inflammation (However, this problem may not be true for non-canonical NF-κB signaling.). This review will focus on the research that has examined canonical and non-canonical NF-κB signaling in adipocytes, focusing on genetic studies that examine loss-of-function of NF-κB specifically in fat cells. Although the development of general inhibitors of canonical NF-κB signaling seems unlikely to succeed in alleviating adipose tissue inflammation in humans, the door remains open for more targeted therapeutics. In principle, these would include compounds that interrogate NF-κB DNA binding, protein-protein interactions, or post-translational modifications that partition NF-κB activity towards some genes and away from others in adipocytes. I also discuss the possibility for inhibitors of non-canonical NF-κB signaling to realize success in mitigating fat cell dysfunction in obesity. To plant the seeds for such approaches, much biochemical “digging” in adipocytes remains; this includes identifying—in an unbiased manner–NF-κB direct and indirect targets, genomic DNA binding sites for all five NF-κB subunits, NF-κB protein-protein interactions, and post-translational modifications of NF-κB in fat cells.
Collapse
|
4
|
MiRNA Let-7a and Let-7d Are Induced by Globotriaosylceramide via NF-kB Activation in Fabry Disease. Genes (Basel) 2021; 12:genes12081184. [PMID: 34440358 PMCID: PMC8394417 DOI: 10.3390/genes12081184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Fabry disease is a hereditary genetic defect resulting in reduced activity of the enzyme α-galactosidase-A and the accumulation of globotriaosylceramide (Gb3) in body fluids and cells. Gb3 accumulation was especially reported for the vascular endothelium in several organs. METHODS Three Fabry disease patients were screened using a micro-RNA screen. An in vitro approach in human endothelial cells was used to determine miRNA regulation by Gb3. RESULTS In a micro-RNA screen of three Fabry patients undergoing enzyme replacement therapy, we found that miRNAs let-7a and let-7d were significantly increased after therapy. We demonstrate in vitro in endothelial cells that Gb3 induced activation of NF-κB and activated downstream targets. In addition, NF-κB activity directly reduced let-7a and let-7d miRNA expression as inhibiting NF-kB nuclear entry abolished the Gb3 effects. CONCLUSION We suggest that let-7a and let-7d are potential markers for enzyme activity and inflammation in Fabry disease patients.
Collapse
|
5
|
Xu Y, Zhang S, Liao X, Li M, Chen S, Li X, Wu X, Yang M, Tang M, Hu Y, Li Z, Yu R, Huang M, Song L, Li J. Circular RNA circIKBKB promotes breast cancer bone metastasis through sustaining NF-κB/bone remodeling factors signaling. Mol Cancer 2021; 20:98. [PMID: 34325714 PMCID: PMC8320207 DOI: 10.1186/s12943-021-01394-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/17/2021] [Indexed: 12/28/2022] Open
Abstract
Background Breast cancer (BC) has a marked tendency to spread to the bone, resulting in significant skeletal complications and mortality. Recently, circular RNAs (circRNAs) have been reported to contribute to cancer initiation and progression. However, the function and mechanism of circRNAs in BC bone metastasis (BC-BM) remain largely unknown. Methods Bone-metastatic circRNAs were screened using circRNAs deep sequencing and validated using in situ hybridization in BC tissues with or without bone metastasis. The role of circIKBKB in inducing bone pre-metastatic niche formation and bone metastasis was determined using osteoclastogenesis, immunofluorescence and bone resorption pit assays. The mechanism underlying circIKBKB-mediated activation of NF-κB/bone remodeling factors signaling and EIF4A3-induced circIKBKB were investigated using RNA pull-down, luciferase reporter, chromatin isolation by RNA purification and enzyme-linked immunosorbent assays. Results We identified that a novel circRNA, circIKBKB, was upregulated significantly in bone-metastatic BC tissues. Overexpressing circIKBKB enhanced the capability of BC cells to induce formation of bone pre-metastatic niche dramatically by promoting osteoclastogenesis in vivo and in vitro. Mechanically, circIKBKB activated NF-κB pathway via promoting IKKβ-mediated IκBα phosphorylation, inhibiting IκBα feedback loop and facilitating NF-κB to the promoters of multiple bone remodeling factors. Moreover, EIF4A3, acted acting as a pre-mRNA splicing factor, promoted cyclization of circIKBKB by directly binding to the circIKBKB flanking region. Importantly, treatment with inhibitor eIF4A3-IN-2 reduced circIKBKB expression and inhibited breast cancer bone metastasis effectively. Conclusion We revealed a plausible mechanism for circIKBKB-mediated NF-κB hyperactivation in bone-metastatic BC, which might represent a potential strategy to treat breast cancer bone metastasis. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01394-8.
Collapse
Affiliation(s)
- Yingru Xu
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Shuxia Zhang
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xinyi Liao
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Man Li
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Suwen Chen
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xincheng Li
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Xingui Wu
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Meisongzhu Yang
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Miaoling Tang
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yameng Hu
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ziwen Li
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ruyuan Yu
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Mudan Huang
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Libing Song
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China.,State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510080, China
| | - Jun Li
- Program of Cancer Research, Key Laboratory of Protein Modification and Degradation and Guangzhou Institute of Oncology, Affiliated Guangzhou Women and Children's Hospital, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 510623, China. .,Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China.
| |
Collapse
|
6
|
Temporal dynamics of a CSF1R signaling gene regulatory network involved in epilepsy. PLoS Comput Biol 2021; 17:e1008854. [PMID: 33819288 PMCID: PMC8057615 DOI: 10.1371/journal.pcbi.1008854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 04/20/2021] [Accepted: 03/04/2021] [Indexed: 01/16/2023] Open
Abstract
Colony Stimulating Factor 1 Receptor (CSF1R) is a potential target for anti-epileptic drugs. However, inhibition of CSF1R is not well tolerated by patients, thereby prompting the need for alternative targets. To develop a framework for identification of such alternatives, we here develop a mathematical model of a pro-inflammatory gene regulatory network (GRN) involved in epilepsy and centered around CSF1R. This GRN comprises validated transcriptional and post-transcriptional regulations involving STAT1, STAT3, NFκB, IL6R, CSF3R, IRF8, PU1, C/EBPα, TNFR1, CSF1 and CSF1R. The model was calibrated on mRNA levels of all GRN components in lipopolysaccharide (LPS)-treated mouse microglial BV-2 cells, and allowed to predict that STAT1 and STAT3 have the strongest impact on the expression of the other GRN components. Microglial BV-2 cells were selected because, the modules from which the GRN was deduced are enriched for microglial marker genes. The function of STAT1 and STAT3 in the GRN was experimentally validated in BV-2 cells. Further, in silico analysis of the GRN dynamics predicted that a pro-inflammatory stimulus can induce irreversible bistability whereby the expression level of GRN components occurs as two distinct states. The irreversibility of the switch may enforce the need for chronic inhibition of the CSF1R GRN in order to achieve therapeutic benefit. The cell-to-cell heterogeneity driven by the bistability may cause variable therapeutic response. In conclusion, our modeling approach uncovered a GRN controlling CSF1R that is predominantly regulated by STAT1 and STAT3. Irreversible inflammation-induced bistability and cell-to-cell heterogeneity of the GRN provide a theoretical foundation to the need for chronic GRN control and the limited potential for disease modification via inhibition of CSF1R. Epilepsy is associated with the induction of complex molecular inflammatory processes. A better understanding of these molecular mechanisms is crucial to optimize therapeutic options. Here, we identified a gene regulatory network (GRN) involved in epilepsy that is controlled by inflammation and which regulates the expression and function of Colony Stimulating Factor 1 receptor (CSF1R), a therapeutic target for anti-epileptic drugs. Using mathematical modeling and experiments with cultured cells, we found that two of eleven components of the network, namely STAT1 and STAT3, exert a tight control on all other components. In addition, we found that inflammation can induce an irreversible switch in the expression of all components of the network, and can cause high cell-to-cell variability. Our findings provide a framework explaining why chronic, not acute, anti-inflammatory treatment is necessary to modulate the network and why drugs targeting CSF1R have limited therapeutic potential.
Collapse
|
7
|
Lelios I, Cansever D, Utz SG, Mildenberger W, Stifter SA, Greter M. Emerging roles of IL-34 in health and disease. J Exp Med 2020; 217:133604. [PMID: 31940023 PMCID: PMC7062519 DOI: 10.1084/jem.20190290] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/11/2019] [Accepted: 11/26/2019] [Indexed: 12/14/2022] Open
Abstract
Macrophages are part of the innate immune system and are present in every organ of the body. They fulfill critical roles in tissue homeostasis and development and are involved in various pathologies. An essential factor for the development, homeostasis, and function of mononuclear phagocytes is the colony stimulating factor-1 receptor (CSF-1R), which has two known ligands: CSF-1 and interleukin-34 (IL-34). While CSF-1 has been extensively studied, the biology and functions of IL-34 are only now beginning to be uncovered. In this review, we discuss recent advances of IL-34 biology in health and disease with a specific focus on mononuclear phagocytes.
Collapse
Affiliation(s)
- Iva Lelios
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Dilay Cansever
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Sebastian G Utz
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Wiebke Mildenberger
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Sebastian A Stifter
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Melanie Greter
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
8
|
Taylor SK, Houshdaran S, Robinson JF, Gormley MJ, Kwan EY, Kapidzic M, Schilling B, Giudice LC, Fisher SJ. Cytotrophoblast extracellular vesicles enhance decidual cell secretion of immune modulators via TNFα. Development 2020; 147:dev.187013. [PMID: 32747437 DOI: 10.1242/dev.187013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/23/2020] [Indexed: 12/11/2022]
Abstract
The placenta releases large quantities of extracellular vesicles (EVs) that likely facilitate communication between the embryo/fetus and the mother. We isolated EVs from second trimester human cytotrophoblasts (CTBs) by differential ultracentrifugation and characterized them using transmission electron microscopy, immunoblotting and mass spectrometry. The 100,000 g pellet was enriched for vesicles with a cup-like morphology typical of exosomes. They expressed markers specific to this vesicle type, CD9 and HRS, and the trophoblast proteins placental alkaline phosphatase and HLA-G. Global profiling by mass spectrometry showed that placental EVs were enriched for proteins that function in transport and viral processes. A cytokine array revealed that the CTB 100,000 g pellet contained a significant amount of tumor necrosis factor α (TNFα). CTB EVs increased decidual stromal cell (dESF) transcription and secretion of NF-κB targets, including IL8, as measured by qRT-PCR and cytokine array. A soluble form of the TNFα receptor inhibited the ability of CTB 100,000 g EVs to increase dESF secretion of IL8. Overall, the data suggest that CTB EVs enhance decidual cell release of inflammatory cytokines, which we theorize is an important component of successful pregnancy.
Collapse
Affiliation(s)
- Sara K Taylor
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
| | - Sahar Houshdaran
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Joshua F Robinson
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
| | - Matthew J Gormley
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
| | - Elaine Y Kwan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Mirhan Kapidzic
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
| | - Birgit Schilling
- Chemistry & Mass Spectrometry, Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Linda C Giudice
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Susan J Fisher
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA .,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94143, USA.,Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Division of Maternal Fetal Medicine, University of California, San Francisco, CA 94143, USA.,Department of Anatomy, University of California, San Francisco, CA 94143, USA.,Human Embryonic Stem Cell Program, University of California, San Francisco, CA 94143, USA
| |
Collapse
|
9
|
Scharfenberg F, Helbig A, Sammel M, Benzel J, Schlomann U, Peters F, Wichert R, Bettendorff M, Schmidt-Arras D, Rose-John S, Moali C, Lichtenthaler SF, Pietrzik CU, Bartsch JW, Tholey A, Becker-Pauly C. Degradome of soluble ADAM10 and ADAM17 metalloproteases. Cell Mol Life Sci 2020; 77:331-350. [PMID: 31209506 PMCID: PMC11105009 DOI: 10.1007/s00018-019-03184-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 05/10/2019] [Accepted: 06/06/2019] [Indexed: 10/26/2022]
Abstract
Disintegrin and metalloproteinases (ADAMs) 10 and 17 can release the extracellular part of a variety of membrane-bound proteins via ectodomain shedding important for many biological functions. So far, substrate identification focused exclusively on membrane-anchored ADAM10 and ADAM17. However, besides known shedding of ADAM10, we identified ADAM8 as a protease capable of releasing the ADAM17 ectodomain. Therefore, we investigated whether the soluble ectodomains of ADAM10/17 (sADAM10/17) exhibit an altered substrate spectrum compared to their membrane-bound counterparts. A mass spectrometry-based N-terminomics approach identified 134 protein cleavage events in total and 45 common substrates for sADAM10/17 within the secretome of murine cardiomyocytes. Analysis of these cleavage sites confirmed previously identified amino acid preferences. Further in vitro studies verified fibronectin, cystatin C, sN-cadherin, PCPE-1 as well as sAPP as direct substrates of sADAM10 and/or sADAM17. Overall, we present the first degradome study for sADAM10/17, thereby introducing a new mode of proteolytic activity within the protease web.
Collapse
Affiliation(s)
- Franka Scharfenberg
- Unit for Degradomics of the Protease Web, Biochemical Institute, University of Kiel, Kiel, Germany.
| | - Andreas Helbig
- Systematic Proteomics and Bioanalytics, Institute for Experimental Medicine, University of Kiel, Kiel, Germany
| | - Martin Sammel
- Unit for Degradomics of the Protease Web, Biochemical Institute, University of Kiel, Kiel, Germany
| | - Julia Benzel
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | - Uwe Schlomann
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | - Florian Peters
- Unit for Degradomics of the Protease Web, Biochemical Institute, University of Kiel, Kiel, Germany
| | - Rielana Wichert
- Unit for Degradomics of the Protease Web, Biochemical Institute, University of Kiel, Kiel, Germany
| | - Maximilian Bettendorff
- Unit for Degradomics of the Protease Web, Biochemical Institute, University of Kiel, Kiel, Germany
| | | | | | - Catherine Moali
- Tissue Biology and Therapeutic Engineering Unit, LBTI, UMR 5305, Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, 69367, Lyon, France
| | - Stefan F Lichtenthaler
- Neuroproteomics, School of Medicine, Klinikum rechts der Isar, Institute for Advanced Study, Technical University Munich, Munich, Germany
- Munich Center for Systems Neurology (SyNergy), Munich, Germany
- German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Claus U Pietrzik
- Institute for Pathobiochemistry, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Jörg W Bartsch
- Department of Neurosurgery, Philipps University Marburg, Marburg, Germany
| | - Andreas Tholey
- Systematic Proteomics and Bioanalytics, Institute for Experimental Medicine, University of Kiel, Kiel, Germany
| | - Christoph Becker-Pauly
- Unit for Degradomics of the Protease Web, Biochemical Institute, University of Kiel, Kiel, Germany.
| |
Collapse
|
10
|
Lakin R, Polidovitch N, Yang S, Guzman C, Gao X, Wauchop M, Burns J, Izaddoustdar F, Backx PH. Inhibition of soluble TNFα prevents adverse atrial remodeling and atrial arrhythmia susceptibility induced in mice by endurance exercise. J Mol Cell Cardiol 2019; 129:165-173. [DOI: 10.1016/j.yjmcc.2019.01.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/17/2018] [Accepted: 01/15/2019] [Indexed: 10/27/2022]
|
11
|
Mussbacher M, Salzmann M, Brostjan C, Hoesel B, Schoergenhofer C, Datler H, Hohensinner P, Basílio J, Petzelbauer P, Assinger A, Schmid JA. Cell Type-Specific Roles of NF-κB Linking Inflammation and Thrombosis. Front Immunol 2019; 10:85. [PMID: 30778349 PMCID: PMC6369217 DOI: 10.3389/fimmu.2019.00085] [Citation(s) in RCA: 375] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 01/11/2019] [Indexed: 12/22/2022] Open
Abstract
The transcription factor NF-κB is a central mediator of inflammation with multiple links to thrombotic processes. In this review, we focus on the role of NF-κB signaling in cell types within the vasculature and the circulation that are involved in thrombo-inflammatory processes. All these cells express NF-κB, which mediates important functions in cellular interactions, cell survival and differentiation, as well as expression of cytokines, chemokines, and coagulation factors. Even platelets, as anucleated cells, contain NF-κB family members and their corresponding signaling molecules, which are involved in platelet activation, as well as secondary feedback circuits. The response of endothelial cells to inflammation and NF-κB activation is characterized by the induction of adhesion molecules promoting binding and transmigration of leukocytes, while simultaneously increasing their thrombogenic potential. Paracrine signaling from endothelial cells activates NF-κB in vascular smooth muscle cells and causes a phenotypic switch to a “synthetic” state associated with a decrease in contractile proteins. Monocytes react to inflammatory situations with enforced expression of tissue factor and after differentiation to macrophages with altered polarization. Neutrophils respond with an extension of their life span—and upon full activation they can expel their DNA thereby forming so-called neutrophil extracellular traps (NETs), which exert antibacterial functions, but also induce a strong coagulatory response. This may cause formation of microthrombi that are important for the immobilization of pathogens, a process designated as immunothrombosis. However, deregulation of the complex cellular links between inflammation and thrombosis by unrestrained NET formation or the loss of the endothelial layer due to mechanical rupture or erosion can result in rapid activation and aggregation of platelets and the manifestation of thrombo-inflammatory diseases. Sepsis is an important example of such a disorder caused by a dysregulated host response to infection finally leading to severe coagulopathies. NF-κB is critically involved in these pathophysiological processes as it induces both inflammatory and thrombotic responses.
Collapse
Affiliation(s)
- Marion Mussbacher
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Manuel Salzmann
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Christine Brostjan
- Department of Surgery, General Hospital, Medical University of Vienna, Vienna, Austria
| | - Bastian Hoesel
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | | | - Hannes Datler
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Philipp Hohensinner
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - José Basílio
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Peter Petzelbauer
- Skin and Endothelial Research Division, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Alice Assinger
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Johannes A Schmid
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
12
|
Abstract
The role of uPA in tissue remodeling and cell migration is already well established. In addition, uPA was reported to stabilize p53, a key cell cycle control, DNA repair and apoptosis initiation protein. We aimed to determine the role of uPA-uPAR signaling towards cell survival or apoptosis in human adult cardiac myocytes (HACM). HACM were stimulated with uPA and DNA damage was inflicted by incubating cells with 200 µM H2O2. To analyze for apoptotic cells we applied TUNEL staining. Oxidative damage foci were analyzed by staining for 8-oxoguanine base pairs. In vivo qPCR analysis from RNA extracted from failing human hearts demonstrated a close relation of uPA with apoptosis and the p53 pathway. Furthermore, we observed a close correlation of uPA and p53 protein in homogenized tissue lysates. In vitro studies revealed that uPA preincubation protected HACM from oxidative damage induced cell death and reduced oxidative damage foci. uPA protection is independent of its catalytic activity, as the amino terminal fragment of uPA showed similar protection. A key enzyme for repairing oxidative DNA damage is the p53 target hOGG1. We found a significant increase of hOGG1 after pretreatment of HACM with uPA. Knockdown of hOGG1 completely abrogated the protective effect of uPA. We conclude that uPA might have a tissue protective role in human hearts besides its role in tissue remodeling. Tissue protection is mediated by the DNA repair protein hOGG1. This might be beneficial during tissue remodeling and thus could be a target for therapeutic approaches in the diseased heart.
Collapse
|
13
|
Cho MJ, Lee JY, Shin MG, Kim HJ, Choi YJ, Rho SB, Kim BR, Jang IS, Lee SH. TSC-22 inhibits CSF-1R function and induces apoptosis in cervical cancer. Oncotarget 2017; 8:97990-98003. [PMID: 29228668 PMCID: PMC5716708 DOI: 10.18632/oncotarget.20296] [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: 02/16/2017] [Accepted: 07/18/2017] [Indexed: 12/20/2022] Open
Abstract
Colony stimulating factor 1 receptor (CSF-1R) regulates the monocyte/macrophage system, which is an essential component of cancer development. Therefore, CSF-1R might be an effective target for anti-cancer therapy. The overexpression of transforming growth factor (TGF)-β stimulated clone-22 (TSC-22) inhibits cancer cell proliferation and induces apoptosis, and TSC-22 is emerging as a key factor in tumorigenesis. In this study, we discovered CSF-1R as a new interacting partner of TSC-22 and identified its elevated expression in cervical cancer cells. In particular, we found that TSC-22 interacted with the intracellular tyrosine kinase insert domain (539–749) of CSF-1R, which activates the AKT and ERK signaling pathways. This binding blocked AKT and ERK signaling, thereby suppressing the transcriptional activity of NF-κB. The overexpression of TSC-22 significantly decreased CSF-1R protein levels, affecting their autocrine loop. TSC-22 injected into a xenograft mouse model of human cervical cancer markedly inhibited tumor growth. The reduction of CSF-1R protein significantly suppresses cervical cancer cell proliferation and motility and induces apoptotic cell death. This association between TSC-22 and CSF-1R could be used as a novel therapeutic target and prognostic marker for cervical cancer.
Collapse
Affiliation(s)
- Min-Ji Cho
- Department of Life Science, YongIn University, Yonginsi, Korea
| | - Ji-Yeon Lee
- Department of Life Science, YongIn University, Yonginsi, Korea
| | - Min-Gwan Shin
- Department of Life Science, YongIn University, Yonginsi, Korea
| | - Hyun-Ji Kim
- Department of Life Science, YongIn University, Yonginsi, Korea
| | - Yu-Joung Choi
- Department of Life Science, YongIn University, Yonginsi, Korea
| | - Seung Bae Rho
- Research Institute, National Cancer Center, Goyang-si, Korea
| | - Boh-Ram Kim
- Research Institute, National Cancer Center, Goyang-si, Korea
| | - Ik Soon Jang
- Division of Bioconvergence, Korea Basic Science Institute, Daejeon, Korea
| | - Seung-Hoon Lee
- Department of Life Science, YongIn University, Yonginsi, Korea
| |
Collapse
|
14
|
Herum KM, Choppe J, Kumar A, Engler AJ, McCulloch AD. Mechanical regulation of cardiac fibroblast profibrotic phenotypes. Mol Biol Cell 2017; 28:1871-1882. [PMID: 28468977 PMCID: PMC5541838 DOI: 10.1091/mbc.e17-01-0014] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/25/2017] [Accepted: 04/27/2017] [Indexed: 12/15/2022] Open
Abstract
Cardiac fibroblasts are essential for beneficial myocardial healing but also cause detrimental adverse remodeling following myocardial infarction. The mechanical properties of the infarcted myocardium and border regions display temporal and spatial characteristics that regulate different aspects of the profibrotic cardiac fibroblast phenotypes. Cardiac fibrosis is a serious condition currently lacking effective treatments. It occurs as a result of cardiac fibroblast (CFB) activation and differentiation into myofibroblasts, characterized by proliferation, extracellular matrix (ECM) production and stiffening, and contraction due to the expression of smooth muscle α-actin. The mechanical properties of myocardium change regionally and over time after myocardial infarction (MI). Although mechanical cues are known to activate CFBs, it is unclear which specific mechanical stimuli regulate which specific phenotypic trait; thus we investigated these relationships using three in vitro models of CFB mechanical activation and found that 1) paracrine signaling from stretched cardiomyocytes induces CFB proliferation under mechanical conditions similar to those of the infarct border region; 2) direct stretch of CFBs mimicking the mechanical environment of the infarct region induces a synthetic phenotype with elevated ECM production; and 3) progressive matrix stiffening, modeling the mechanical effects of infarct scar maturation, causes smooth muscle α-actin fiber formation, up-regulation of collagen I, and down-regulation of collagen III. These findings suggest that myocyte stretch, fibroblast stretch, and matrix stiffening following MI may separately regulate different profibrotic traits of activated CFBs.
Collapse
Affiliation(s)
- Kate M Herum
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093 .,Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0450 Oslo, Norway
| | - Jonas Choppe
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093
| | - Aditya Kumar
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093
| | - Adam J Engler
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093.,Sanford Consortium for Regenerative Medicine, La Jolla, CA 92093
| | - Andrew D McCulloch
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093.,Department of Medicine, University of California San Diego, La Jolla, CA 92093
| |
Collapse
|
15
|
Poulos MG, Ramalingam P, Gutkin MC, Kleppe M, Ginsberg M, Crowley MJP, Elemento O, Levine RL, Rafii S, Kitajewski J, Greenblatt MB, Shim JH, Butler JM. Endothelial-specific inhibition of NF-κB enhances functional haematopoiesis. Nat Commun 2016; 7:13829. [PMID: 28000664 PMCID: PMC5187502 DOI: 10.1038/ncomms13829] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 11/02/2016] [Indexed: 12/28/2022] Open
Abstract
Haematopoietic stem cells (HSCs) reside in distinct niches within the bone marrow (BM) microenvironment, comprised of endothelial cells (ECs) and tightly associated perivascular constituents that regulate haematopoiesis through the expression of paracrine factors. Here we report that the canonical NF-κB pathway in the BM vascular niche is a critical signalling axis that regulates HSC function at steady state and following myelosuppressive insult, in which inhibition of EC NF-κB promotes improved HSC function and pan-haematopoietic recovery. Mice expressing an endothelial-specific dominant negative IκBα cassette under the Tie2 promoter display a marked increase in HSC activity and self-renewal, while promoting the accelerated recovery of haematopoiesis following myelosuppression, in part through protection of the BM microenvironment following radiation and chemotherapeutic-induced insult. Moreover, transplantation of NF-κB-inhibited BM ECs enhanced haematopoietic recovery and protected mice from pancytopenia-induced death. These findings pave the way for development of niche-specific cellular approaches for the treatment of haematological disorders requiring myelosuppressive regimens. The complex microenvironmental signalling pathways that govern haematopoietic stem cell (HSC) activity remain poorly defined. Here, the authors identify endothelial NF-κB signalling as regulating regenerative HSC function, accelerating haematopoietic recovery following myelosuppressive injury in mice.
Collapse
Affiliation(s)
- Michael G Poulos
- Department of Genetic Medicine, Ansary Stem Cell Institute, Weill Cornell Medical College, New York, New York 10021, USA.,Department of Surgery, Weill Cornell Medical College, New York, New York 10021, USA
| | - Pradeep Ramalingam
- Department of Genetic Medicine, Ansary Stem Cell Institute, Weill Cornell Medical College, New York, New York 10021, USA.,Department of Surgery, Weill Cornell Medical College, New York, New York 10021, USA
| | - Michael C Gutkin
- Department of Genetic Medicine, Ansary Stem Cell Institute, Weill Cornell Medical College, New York, New York 10021, USA.,Department of Surgery, Weill Cornell Medical College, New York, New York 10021, USA
| | - Maria Kleppe
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | | | - Michael J P Crowley
- Department of Cardiothoracic Surgery, Weill Cornell Medical College, New York, New York 10065, USA.,Department of Physiology, Biophysics and Systems Biology, Weill Cornell Medical College, New York, New York 10065, USA.,Neuberger Berman Lung Cancer Center, Weill Cornell Medical Center, New York, New York 10065, USA
| | - Olivier Elemento
- HRH Prince Alwaleed Bin Talal Bin Abdulaziz Al-Saud Institute for Computational Biomedicine, Weill Cornell Medical College, New York, New York 10065, USA
| | - Ross L Levine
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA.,Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA.,Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Shahin Rafii
- Department of Medicine, Division of Regenerative Medicine, Ansary Stem Cell Institute, Weill Cornell Medical College, New York, New York 10065, USA
| | - Jan Kitajewski
- Department of OB/GYN, Columbia University Medical Center, New York, New York 10032, USA.,Department of Pathology, Columbia University Medical Center, New York, New York 10032, USA
| | - Matthew B Greenblatt
- Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York 10021, USA
| | - Jae-Hyuck Shim
- Department of Medicine, Division of Rheumatology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA
| | - Jason M Butler
- Department of Genetic Medicine, Ansary Stem Cell Institute, Weill Cornell Medical College, New York, New York 10021, USA.,Department of Surgery, Weill Cornell Medical College, New York, New York 10021, USA
| |
Collapse
|
16
|
Montanari E, Stojkovic S, Kaun C, Lemberger CE, de Martin R, Rauscher S, Gröger M, Maurer G, Neumayer C, Huk I, Huber K, Demyanets S, Wojta J. Interleukin-33 stimulates GM-CSF and M-CSF production by human endothelial cells. Thromb Haemost 2016; 116:317-27. [PMID: 27173404 DOI: 10.1160/th15-12-0917] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 04/24/2016] [Indexed: 12/20/2022]
Abstract
Interleukin (IL)-33, a member of the IL-1 family of cytokines, is involved in various inflammatory conditions targeting amongst other cells the endothelium. Besides regulating the maturation and functions of myeloid cells, granulocyte macrophage-colony stimulating factor (GM-CSF) and macrophage-CSF (M-CSF) have been shown to play a role in such pathologies too. It was the aim of our study to investigate a possible influence of IL-33 on GM-CSF and M-CSF production by human endothelial cells. IL-33, but not IL-18 or IL-37, stimulated GM-CSF and M-CSF mRNA expression and protein production by human umbilical vein endothelial cells (HUVECs) and human coronary artery ECs (HCAECs) through the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway in an IL-1-independent way. This effect was inhibited by the soluble form of ST2 (sST2), which is known to act as a decoy receptor for IL-33. The 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitor fluvastatin could also be shown to moderately reduce the IL-33-mediated effect on M-CSF, but not on GM-CSF expression. In addition, IL-33, IL-1β, GM-CSF and M-CSF were detected in endothelial cells of human carotid atherosclerotic plaques using immunofluorescence. Upregulation of GM-CSF and M-CSF production by human endothelial cells, an effect that appears to be mediated by NF-κB and to be independent of IL-1, may be an additional mechanism through which IL-33 contributes to inflammatory activation of the vessel wall.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Svitlana Demyanets
- Svitlana Demyanets, MD, PhD, Department of Laboratory Medicine, Medical University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria, Tel.: +43 1 40400 73516, Fax: +43 1 40400 73587, E-mail:
| | | |
Collapse
|
17
|
Simone V, Ciavarella S, Brunetti O, Savonarola A, Cives M, Tucci M, Opinto G, Maiorano E, Silvestris F. Everolimus restrains the paracrine pro-osteoclast activity of breast cancer cells. BMC Cancer 2015; 15:692. [PMID: 26468083 PMCID: PMC4606500 DOI: 10.1186/s12885-015-1717-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 10/08/2015] [Indexed: 11/27/2022] Open
Abstract
Background Breast cancer (BC) cells secrete soluble factors that accelerate osteoclast (OC) differentiation, leading to the formation of osteolytic bone metastases. In the BOLERO-2 trial, BC patients with bone involvement who received Everolimus had a delayed tumor progression in the skeleton as a result of direct OC suppression through the inhibition of mTOR, in addition to the general suppressor effect on the cancer cells. Here, we explored the effect of Everolimus, as mTOR inhibitor, on the pro-OC paracrine activity of BC cells. Methods Both MDA-MB-231 and MCF-7 BC cell lines were incubated with sub-lethal amounts of Everolimus, and their conditioned supernatants were assessed for their capacity to differentiate OCs from PBMC from healthy donors, as well as to interfere with their bone resorbing activity shown on calcium phosphate slices. We also measured the mRNA levels of major pro-OC factors in Everolimus-treated BC cells and their secreted levels by ELISA, and evaluated by immunoblotting the phosphorylation of transcription factors enrolled by pathways cooperating with the mTOR inhibition. Finally, the in vivo pro-OC activity of these cells was assessed in SCID mice after intra-tibial injections. Results We found that Everolimus significantly inhibited the differentiation of OCs and their in vitro bone-resorbing activity, and also found decreases of both mRNA and secreted pro-OC factors such as M-CSF, IL-6, and IL-1β, whose lower ELISA levels paralleled the defective phosphorylation of NFkB pathway effectors. Moreover, when intra-tibially injected in SCID mice, Everolimus-treated BC cells produced smaller bone metastases than the untreated cells. Conclusions mTOR inhibition in BC cells leads to a suppression of their paracrine pro-OC activity by interfering with the NFkB pathway; this effect may also account for the delayed progression of bone metastatic disease observed in the BOLERO-2 trial. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1717-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Valeria Simone
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| | - Sabino Ciavarella
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| | - Oronzo Brunetti
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| | - Annalisa Savonarola
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| | - Mauro Cives
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| | - Marco Tucci
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| | - Giuseppina Opinto
- Department of Pathological Anatomy, University of Bari "A. Moro", Bari, Italy.
| | - Eugenio Maiorano
- Department of Pathological Anatomy, University of Bari "A. Moro", Bari, Italy.
| | - Franco Silvestris
- Department of Biomedical Sciences and Human Oncology, University of Bari "A. Moro", P.zza Giulio Cesare, 11-70124, Bari, Italy.
| |
Collapse
|
18
|
Aschar-Sobbi R, Izaddoustdar F, Korogyi AS, Wang Q, Farman GP, Yang F, Yang W, Dorian D, Simpson JA, Tuomi JM, Jones DL, Nanthakumar K, Cox B, Wehrens XHT, Dorian P, Backx PH. Increased atrial arrhythmia susceptibility induced by intense endurance exercise in mice requires TNFα. Nat Commun 2015; 6:6018. [PMID: 25598495 DOI: 10.1038/ncomms7018] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 12/02/2014] [Indexed: 12/13/2022] Open
Abstract
Atrial fibrillation (AF) is the most common supraventricular arrhythmia that, for unknown reasons, is linked to intense endurance exercise. Our studies reveal that 6 weeks of swimming or treadmill exercise improves heart pump function and reduces heart-rates. Exercise also increases vulnerability to AF in association with inflammation, fibrosis, increased vagal tone, slowed conduction velocity, prolonged cardiomyocyte action potentials and RyR2 phosphorylation (CamKII-dependent S2814) in the atria, without corresponding alterations in the ventricles. Microarray results suggest the involvement of the inflammatory cytokine, TNFα, in exercised-induced atrial remodelling. Accordingly, exercise induces TNFα-dependent activation of both NFκB and p38MAPK, while TNFα inhibition (with etanercept), TNFα gene ablation, or p38 inhibition, prevents atrial structural remodelling and AF vulnerability in response to exercise, without affecting the beneficial physiological changes. Our results identify TNFα as a key factor in the pathology of intense exercise-induced AF.
Collapse
Affiliation(s)
- Roozbeh Aschar-Sobbi
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| | - Farzad Izaddoustdar
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| | - Adam S Korogyi
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| | - Qiongling Wang
- Cardiovascular Research Institute, Department of Molecular Physiology and Biophysics, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA
| | - Gerrie P Farman
- Department of Physiology and Biophysics, Boston University, 700 Albany St, Boston, Massachusetts 02118-2526, USA
| | - FengHua Yang
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| | - Wallace Yang
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| | - David Dorian
- Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| | - Jeremy A Simpson
- Department of Human Health and Nutritional Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, Canada N1G2W1
| | - Jari M Tuomi
- Department of Physiology and Pharmacology, Western University, Medical Science Building, London, Ontario, Canada N6A5C1
| | - Douglas L Jones
- Department of Physiology and Pharmacology, Western University, Medical Science Building, London, Ontario, Canada N6A5C1
| | - Kumaraswamy Nanthakumar
- 1] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, 200 Elizabeth St, Toronto, Ontario, Canada M5G2C4
| | - Brian Cox
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Program in Developmental and Stem Cell Biology, Hospital for Sick Children Research Institute, 555 University Ave, Toronto, Ontario, Canada M5G 1X9
| | - Xander H T Wehrens
- Cardiovascular Research Institute, Department of Molecular Physiology and Biophysics, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, USA
| | - Paul Dorian
- 1] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Division of Cardiology, St Michael's Hospital, 2300 Yonge St, Toronto, Ontario, Canada M4P1E4
| | - Peter H Backx
- 1] Department of Physiology, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [2] Department of Medicine, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8 [3] Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, 200 Elizabeth St, Toronto, Ontario, Canada M5G2C4 [4] Heart &Stroke Richard Lewar Centre of Excellence, University of Toronto, 1 King's College Cir., Toronto, Ontario, Canada M5S1A8
| |
Collapse
|
19
|
Mou W, Xu Y, Ye Y, Chen S, Li X, Gong K, Liu Y, Chen Y, Li X, Tian Y, Xiang R, Li N. Expression of Sox2 in breast cancer cells promotes the recruitment of M2 macrophages to tumor microenvironment. Cancer Lett 2014; 358:115-123. [PMID: 25444903 DOI: 10.1016/j.canlet.2014.11.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 08/04/2014] [Accepted: 11/03/2014] [Indexed: 12/31/2022]
Abstract
Transcriptional factor Sox2 promotes tumor metastasis; however its regulatory effect on tumor-associated macrophages (TAMs, M2 phenotype) has not been defined. This study disclosed concomitant expression of TAMs marker-CD163 with SOX2 in human breast cancer and showed that Sox2 in breast cancer cells promotes recruitment of TAMs with altered expression of multiple chemokines, including MIP-1α, ICAM-1 etc. and activation of Stat3 and NF-κB signalings. In addition, TAMs rescued the compromised lung metastasis induced by Sox2 silencing in breast cancer cells. Together, this study documented that Sox2 plays an important role in recruiting TAMs and promotes tumor metastasis in a TAMs dependent manner.
Collapse
Affiliation(s)
- Wenjun Mou
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China; Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China; Department of Biochemistry, Chinese PLA General Hospital, Beijing 100853, China
| | - Yingxi Xu
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yujie Ye
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Si Chen
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xuefei Li
- Beijing Health Vocational College, 94 Nanhengxijie Street, Beijing 100053, China
| | - Kangzi Gong
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yanhua Liu
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yanan Chen
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xiru Li
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - Yaping Tian
- Department of Biochemistry, Chinese PLA General Hospital, Beijing 100853, China
| | - Rong Xiang
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China; Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Na Li
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China; Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Tianjin 300071, China; Collaborative Innovation Center for Biotherapy, Nankai University, 94 Weijin Road, Tianjin 300071, China.
| |
Collapse
|
20
|
Hematopoietic stem/progenitor cell proliferation and differentiation is differentially regulated by high-density and low-density lipoproteins in mice. PLoS One 2012; 7:e47286. [PMID: 23144813 PMCID: PMC3492382 DOI: 10.1371/journal.pone.0047286] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Accepted: 09/14/2012] [Indexed: 12/03/2022] Open
Abstract
Rationale Hematopoietic stem/progenitor cells (HSPC) are responsible for maintaining the blood system as a result of their self-renewal and multilineage differentiation capacity. Recently, studies have suggested that HDL cholesterol may inhibit and impaired cholesterol efflux may increase HSPC proliferation and differentiation. Objectives We hypothesized that LDL may enhance HSPC proliferation and differentiation while HDL might have the opposing effect which might influence the size of the pool of inflammatory cells. Methods and Results HSPC number and function were studied in hypercholesterolemic LDL receptor knockout (LDLr−/−) mice on high fat diet. Hypercholesterolemia was associated with increased frequency of HSPC, monocytes and granulocytes in the peripheral blood (PB). In addition, an increased proportion of BM HSPC was in G2M of the cell cycle, and the percentage of HSPC and granulocyte-macrophage progenitors (GMP) increased in BM of LDLr−/− mice. When BM Lin-Sca-1+cKit+ (i.e. “LSK”) cells were cultured in the presence of LDL in vitro we also found enhanced differentiation towards monocytes and granulocytes. Furthermore, LDL promoted lineage negative (Lin−) cells motility. The modulation by LDL on HSPC differentiation into granulocytes and motility was inhibited by inhibiting ERK phosphorylation. By contrast, when mice were infused with human apoA-I (the major apolipoprotein of HDL) or reconstituted HDL (rHDL), the frequency and proliferation of HSPC was reduced in BM in vivo. HDL also reversed the LDL-induced monocyte and granulocyte differentiation in vitro. Conclusion Our data suggest that LDL and HDL have opposing effects on HSPC proliferation and differentiation. It will be of interest to determine if breakdown of HSPC homeostasis by hypercholesterolemia contributes to inflammation and atherosclerosis progression.
Collapse
|
21
|
|
22
|
Chen Y, Pat B, Zheng J, Cain L, Powell P, Shi K, Sabri A, Husain A, Dell'italia LJ. Tumor necrosis factor-alpha produced in cardiomyocytes mediates a predominant myocardial inflammatory response to stretch in early volume overload. J Mol Cell Cardiol 2010; 49:70-8. [PMID: 20045005 DOI: 10.1016/j.yjmcc.2009.12.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 12/03/2009] [Accepted: 12/16/2009] [Indexed: 11/26/2022]
Abstract
Acute stretch caused by volume overload (VO) of aorto-caval fistula (ACF) induces a variety of myocardial responses including mast cell accumulation, matrix metalloproteinase (MMP) activation, and collagen degradation, all of which are critical in dictating long-term left ventricle (LV) outcome to VO. Meanwhile, these responses can be part of myocardial inflammation dictated by tumor necrosis factor-alpha (TNF-alpha), which is elevated after acute ACF. However, it is unknown whether TNF-alpha mediates a major myocardial inflammatory response to stretch in early VO. In 24-h ACF and sham rats, microarray gene expression profiling and subsequent Ingenuity Pathway Analysis identified a predominant inflammatory response and a gene network of biologically interactive genes strongly linked to TNF-alpha. Western blot demonstrated increased local production of TNF-alpha in the LV (1.71- and 1.66-fold in pro- and active-TNF-alpha over control, respectively, P<0.05) and cardiomyocytes (2- and 4-fold in pro- and active-TNF-alpha over control, respectively, P<0.05). TNF-alpha neutralization with infliximab (5.5 mg/kg) attenuated the myocardial inflammatory response to acute VO, as indicated by inhibition of inflammatory gene upregulation, myocardial infiltration (total CD45+ cells, mast cells, and neutrophils), MMP-2 activation, collagen degradation, and cardiac cell apoptosis, without improving LV remodeling and function. These results indicate that TNF-alpha produced by cardiomyocytes mediates a predominant inflammatory response to stretch in the early VO in the ACF rat, suggesting an important role of TNF-alpha in initiating pathophysiological response of myocardium to VO.
Collapse
Affiliation(s)
- Yuanwen Chen
- Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Seizer P, Schönberger T, Schött M, Lang MR, Langer HF, Bigalke B, Krämer BF, Borst O, Daub K, Heidenreich O, Schmidt R, Lindemann S, Herouy Y, Gawaz M, May AE. EMMPRIN and its ligand cyclophilin A regulate MT1-MMP, MMP-9 and M-CSF during foam cell formation. Atherosclerosis 2009; 209:51-7. [PMID: 19758589 DOI: 10.1016/j.atherosclerosis.2009.08.029] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2009] [Revised: 07/27/2009] [Accepted: 08/17/2009] [Indexed: 11/17/2022]
Abstract
UNLABELLED Upon coincubation with platelets, CD34(+) progenitor cells have the potential to differentiate into foam cells, and thereby may promote the progression of atherosclerosis. The exact mechanism of MMP-regulation during the cellular differentiation process to foam cells is still unclear. Thus, we investigated the role of EMMPRIN (CD147) and its ligand cyclophilin A (CyPA) during foam cell formation originating from both monocytes/macrophages and CD34(+) progenitor cells. METHODS AND RESULTS Differentiation of CD34(+) progenitor to foam cells was analyzed in a coculture model of progenitor cells and platelets. While CD34(+) cells did not express EMMPRIN or MT1-MMP, mature foam cells strongly expressed EMMPRIN, which was associated with MT1-MMP expression as well as MMP-9. Gene silencing of EMMPRIN by siRNA during the cell differentiation process hindered not only the upregulation of MMPs (MT1-MMP, MMP-9), but also the secretion of the cytokine M-CSF. During the differentiation process CyPA was substantially released into the supernatant. The presence of the CyPA inhibitor NIM811 significantly reduced MMP-9 secretion during the differentiation process. Similar results were obtained using the classical pathway of foam cell formation by coincubating human macrophages with AcLDL. Additionally, the presence of soluble EMMPRIN ligands (CyPA, recombinant EMMPRIN) further enhanced MMP-9 secretion by mature foam cells. Consistently, CyPA and EMMPRIN were found in atherosclerotic plaques of ApoE-deficient mice by immunohistochemistry. CONCLUSION EMMPRIN is upregulated during the differentiation process from CD34(+) progenitor cells to foam cells, whereas its ligand, CyPA, is released. The CyPA/EMMPRIN activation pathway may play a relevant role in promoting the vulnerability of atherosclerotic plaques.
Collapse
Affiliation(s)
- Peter Seizer
- Medizinische Klinik III, Eberhard Karls University Tuebingen, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Yagiz K, Rittling SR. Both cell-surface and secreted CSF-1 expressed by tumor cells metastatic to bone can contribute to osteoclast activation. Exp Cell Res 2009; 315:2442-52. [PMID: 19427849 DOI: 10.1016/j.yexcr.2009.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 05/01/2009] [Accepted: 05/01/2009] [Indexed: 12/26/2022]
Abstract
Tumors metastatic to the bone produce factors that cause massive bone resorption mediated by osteoclasts in the bone microenvironment. Colony stimulating factor (CSF-1) is strictly required for the formation and survival of active osteoclasts, and is frequently produced by tumor cells. Here we hypothesize that the CSF-1 made by tumor cells contributes to bone destruction in osteolytic bone metastases. We show that high level CSF-1 protected osteoclasts from suppressive effects of transforming growth factor beta (TGF-beta). r3T cells, a mouse mammary tumor cell line that forms osteolytic bone metastases, express abundant CSF-1 in vitro as both a secreted and a membrane-spanning cell-surface glycoprotein, and we show that both the secreted and the cell-surface form of CSF-1 made by r3T cells can support osteoclast formation in co-culture experiments in the presence of RankL. Mice with r3T bone metastases have elevated levels of both circulating and bone-associated CSF-1, and the majority of CSF-1 found in bone metastases is associated with the tumor cells. These results support the idea that tumor-cell produced CSF-1 contributes to osteoclast development and survival in bone metastasis.
Collapse
Affiliation(s)
- Kader Yagiz
- Department of Cytokine Biology, The Forsyth Institute, Boston, MA 02115, USA
| | | |
Collapse
|
25
|
Hohensinner PJ, Kaun C, Rychli K, Niessner A, Pfaffenberger S, Rega G, Furnkranz A, Uhrin P, Zaujec J, Afonyushkin T, Bochkov VN, Maurer G, Huber K, Wojta J. The inflammatory mediator oncostatin M induces stromal derived factor‐1 in human adult cardiac cells. FASEB J 2008; 23:774-82. [DOI: 10.1096/fj.08-108035] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- P. J. Hohensinner
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
- Ludwig Boltzmann Cluster for Cardiovascular ResearchViennaAustria
| | - C. Kaun
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - K. Rychli
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - A. Niessner
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - S. Pfaffenberger
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - G. Rega
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - A. Furnkranz
- Third Department of MedicineWilhelminenhospitalViennaAustria
| | - P. Uhrin
- Department of Vascular Biology and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - J. Zaujec
- Department of Vascular Biology and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - T. Afonyushkin
- Department of Vascular Biology and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - V. N. Bochkov
- Department of Vascular Biology and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - G. Maurer
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
| | - K. Huber
- Third Department of MedicineWilhelminenhospitalViennaAustria
| | - J. Wojta
- Department of Internal Medicine II and and Thrombosis ResearchMedical University of ViennaViennaAustria
- Ludwig Boltzmann Cluster for Cardiovascular ResearchViennaAustria
| |
Collapse
|
26
|
Increased macrophage colony-stimulating factor levels in patients with Graves’ disease. Int J Hematol 2008; 88:272-277. [DOI: 10.1007/s12185-008-0155-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2008] [Revised: 07/23/2008] [Accepted: 07/29/2008] [Indexed: 10/21/2022]
|
27
|
Chen C, Shang X, Cui L, Xu T, Luo J, Ba X, Zeng X. L-selectin ligation-induced CSF-1 gene transcription is regulated by AP-1 in a c-Abl kinase-dependent manner. Hum Immunol 2008; 69:501-9. [PMID: 18619508 DOI: 10.1016/j.humimm.2008.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 06/05/2008] [Accepted: 06/13/2008] [Indexed: 11/16/2022]
Abstract
L-selectin is a cell adhesion molecule that plays an important role both in mediating the initial capture and subsequent rolling of leukocytes along the endothelial cells and in the signal transduction for leukocyte activation. In our previous studies, we reported that L-selectin ligation could increase macrophage colony-stimulating factor (CSF)-1 gene transcription, in which c-Abl acts as a crucial cytoplasmic kinase. Here we investigated the function of the nuclear c-Abl kinase in the CSF-1 gene transcriptional events triggered by L-selectin ligation. We determined that c-Abl kinase recruits to the nucleus following L-selectin ligation, and the nuclear c-Abl kinase can phosphorylate c-Jun and regulate activator protein (AP)-1 activity. Furthermore, the activated c-Abl kinase interacts with AP-1 and forms a complex in the CSF-1 promoter region to regulate CSF-1 gene transcription in the L-selectin ligation-activated cells. These results indicate that nuclear c-Abl kinase can activate CSF-1 gene transcription by regulating AP-1 activity in the signaling events induced by L-selectin ligation.
Collapse
Affiliation(s)
- Cuixia Chen
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|