51
|
Quercetin attenuates AZT-induced neuroinflammation in the CNS. Sci Rep 2018; 8:6194. [PMID: 29670213 PMCID: PMC5906611 DOI: 10.1038/s41598-018-24618-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/04/2018] [Indexed: 02/06/2023] Open
Abstract
Highly active anti-retroviral therapy (HAART) is very effective in suppressing HIV-1 replication in patients. However, continuous HAART is required to prevent viral rebound, which may have detrimental effects in various tissues, including persistent neuroinflammation in the central nervous system (CNS). Here, we show that quercetin (3,5,7,3’,4’-pentahydroxy flavones), a natural antioxidant used in Chinese traditional medicines, suppresses the neuroinflammation that is induced by chronic exposure to Zidovudine (azidothymidine, AZT), a nucleoside reverse transcriptase inhibitor (NRTI) that is commonly part of HAART regimens. We found that the up-regulation of pro-inflammatory cytokines and microglial and astrocytic markers induced by AZT (100 mg/kg/day; 8 days) was significantly inhibited by co-administration of quercetin (50 mg/kg/day) in the mouse cortex, hippocampus and spinal cord. We further showed that quercetin attenuated AZT-induced up-regulation of Wnt5a, a key regulator of neuroinflammation. These results suggest that quercetin has an inhibitory effect on AZT-induced neuroinflammation in the CNS, and Wnt5a signaling may play an important role in this process. Our results may further our understanding of the mechanisms of HAART-related neurotoxicity and help in the development of effective adjuvant therapy.
Collapse
|
52
|
Ress C, Paulweber M, Goebel G, Willeit K, Rufinatscha K, Strobl A, Salzmann K, Kedenko L, Tschoner A, Staudacher G, Iglseder B, Tilg H, Paulweber B, Kaser S. Circulating Wnt inhibitory factor 1 levels are associated with development of cardiovascular disease. Atherosclerosis 2018; 273:1-7. [PMID: 29649633 DOI: 10.1016/j.atherosclerosis.2018.03.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 02/12/2018] [Accepted: 03/28/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND AND AIMS Wnt signaling is involved in atherosclerotic plaque formation directly and indirectly by modulating cardiovascular risk factors. We investigated whether circulating concentrations of Wnt inhibitors are associated with cardiovascular events in subjects with intermediate cardiovascular risk. METHODS 904 non-diabetic subjects participating in the SAPHIR study were assessed. In the SAPHIR study, middle-aged women without overt atherosclerotic disease at study entry were followed up for 10 years. 88 patients of our study cohort developed cardiovascular disease at follow-up (CVD group). Subjects of the CVD group were 1:2 case-control matched for age, sex, BMI and smoking behavior with subjects without overt cardiovascular disease after a 10 year-follow-up (control group). 18 patients of the CVD group and 19 subjects of the control group were retrospectively excluded due to fulfilling exclusion criteria. Baseline circulating sclerostin, dickkopf (DKK)-1, secreted frizzled-related protein (SFRP)-1 and Wnt inhibitory factor (WIF)-1 levels were assessed by ELISA. RESULTS Baseline systemic SFRP-1 and WIF-1 levels were significantly higher in patients with cardiovascular events (n = 70) when compared to healthy controls (n = 157) while DKK-1 and sclerostin levels were similar in both groups. Logistic regression analysis revealed WIF-1 as a significant predictor of future cardiovascular events. CONCLUSIONS Our data suggest that increased SFRP-1 and WIF-1 levels precede the development of symptomatic atherosclerotic disease. Assessment of systemic WIF-1 levels, which turned out to be independently associated with CVD, might help to early identify patients at intermediate cardiovascular risk.
Collapse
Affiliation(s)
- Claudia Ress
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria; Christian Doppler Laboratory for Metabolic Crosstalk, Medical University Innsbruck, Innsbruck, Austria
| | - Mariya Paulweber
- Department of Internal Medicine 1, Paracelsus Private University Salzburg, Salzburg, Austria
| | - Georg Goebel
- Department of Medical Statistics, Informatics and Health Economics, Medical University Innsbruck, Innsbruck, Austria
| | - Karin Willeit
- Department of Internal Medicine 1, Paracelsus Private University Salzburg, Salzburg, Austria
| | - Kerstin Rufinatscha
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria; Christian Doppler Laboratory for Metabolic Crosstalk, Medical University Innsbruck, Innsbruck, Austria
| | - Anna Strobl
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria
| | - Karin Salzmann
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria; Christian Doppler Laboratory for Metabolic Crosstalk, Medical University Innsbruck, Innsbruck, Austria
| | - Ludmilla Kedenko
- Christian Doppler Laboratory for Metabolic Crosstalk, Medical University Innsbruck, Innsbruck, Austria
| | - Alexander Tschoner
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria
| | - Gabriele Staudacher
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria
| | - Bernhard Iglseder
- Department of Geriatrics, Paracelsus Private University Salzburg, Salzburg, Austria
| | - Herbert Tilg
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria
| | - Bernhard Paulweber
- Department of Internal Medicine 1, Paracelsus Private University Salzburg, Salzburg, Austria
| | - Susanne Kaser
- Department of Internal Medicine 1, Medical University Innsbruck, Innsbruck, Austria; Christian Doppler Laboratory for Metabolic Crosstalk, Medical University Innsbruck, Innsbruck, Austria.
| |
Collapse
|
53
|
Houschyar KS, Chelliah MP, Rein S, Maan ZN, Weissenberg K, Duscher D, Branski LK, Siemers F. Role of Wnt signaling during inflammation and sepsis: A review of the literature. Int J Artif Organs 2018; 41:247-253. [PMID: 29562813 DOI: 10.1177/0391398818762357] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite the development of modern intensive care and new antimicrobial agents, the mortality of patients with severe sepsis and septic shock remains high. Systemic inflammation is a consequence of activation of the innate immune system. It is characterized by the intravascular release of proinflammatory cytokines and other vasoactive mediators, with concurrent activation of innate immune cells. The Wnt signaling pathway plays a critical role in the development of multicellular organisms. Abnormal Wnt signaling has been associated with many human diseases, ranging from inflammation and degenerative diseases to cancer. This article reviews the accumulating evidence that the Wnt signaling pathway plays a distinct role in inflammation and sepsis.
Collapse
Affiliation(s)
- Khosrow Siamak Houschyar
- 1 Department of Plastic and Hand Surgery, Burn Unit, Trauma Center Bergmannstrost Halle, Halle, Germany
| | - Malcolm P Chelliah
- 2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA
| | - Susanne Rein
- 1 Department of Plastic and Hand Surgery, Burn Unit, Trauma Center Bergmannstrost Halle, Halle, Germany
| | - Zeshaan N Maan
- 2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA
| | - Kristian Weissenberg
- 1 Department of Plastic and Hand Surgery, Burn Unit, Trauma Center Bergmannstrost Halle, Halle, Germany
| | - Dominik Duscher
- 3 Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany
| | - Ludwik K Branski
- 4 Department of Surgery, Shriners Hospital for Children-Galveston, University of Texas Medical Branch, Galveston, TX, USA
| | - Frank Siemers
- 1 Department of Plastic and Hand Surgery, Burn Unit, Trauma Center Bergmannstrost Halle, Halle, Germany
| |
Collapse
|
54
|
Zhang Y, Liu C, Wang J, Li X. Application of Monte Carlo cross-validation to identify pathway cross-talk in neonatal sepsis. Exp Biol Med (Maywood) 2018; 243:444-450. [PMID: 29513099 PMCID: PMC5882034 DOI: 10.1177/1535370218759635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 01/17/2018] [Indexed: 01/06/2023] Open
Abstract
To explore genetic pathway cross-talk in neonates with sepsis, an integrated approach was used in this paper. To explore the potential relationships between differently expressed genes between normal uninfected neonates and neonates with sepsis and pathways, genetic profiling and biologic signaling pathway were first integrated. For different pathways, the score was obtained based upon the genetic expression by quantitatively analyzing the pathway cross-talk. The paired pathways with high cross-talk were identified by random forest classification. The purpose of the work was to find the best pairs of pathways able to discriminate sepsis samples versus normal samples. The results found 10 pairs of pathways, which were probably able to discriminate neonates with sepsis versus normal uninfected neonates. Among them, the best two paired pathways were identified according to analysis of extensive literature. Impact statement To find the best pairs of pathways able to discriminate sepsis samples versus normal samples, an RF classifier, the DS obtained by DEGs of paired pathways significantly associated, and Monte Carlo cross-validation were applied in this paper. Ten pairs of pathways were probably able to discriminate neonates with sepsis versus normal uninfected neonates. Among them, the best two paired pathways ((7) IL-6 Signaling and Phospholipase C Signaling (PLC); (8) Glucocorticoid Receptor (GR) Signaling and Dendritic Cell Maturation) were identified according to analysis of extensive literature.
Collapse
Affiliation(s)
- Yuxia Zhang
- Department of Neonatal, Qilu Hospital of Shandong
University, Jinan, Shandong 250012, China
| | - Cui Liu
- Department of Neonatal, Qilu Hospital of Shandong
University, Jinan, Shandong 250012, China
| | - Jingna Wang
- Department of Neonatal, Qilu Hospital of Shandong
University, Jinan, Shandong 250012, China
| | - Xingxia Li
- Department of Neonatal, Qilu Hospital of Shandong
University, Jinan, Shandong 250012, China
| |
Collapse
|
55
|
Setyaningsih WAW, Arfian N, Suryadi E, Romi MM, Tranggono U, Sari DCR. Hyperuricemia Induces Wnt5a/Ror2 Gene Expression, Epithelial-Mesenchymal Transition, and Kidney Tubular Injury in Mice. IRANIAN JOURNAL OF MEDICAL SCIENCES 2018; 43:164-173. [PMID: 29749985 PMCID: PMC5936848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Hyperuricemia contributes to kidney injury, characterized by tubular injury with epithelial-mesenchymal transition (EMT). Wnt5a/Ror2 signaling drives EMT in many kidney pathologies. This study sought to evaluate the involvement of Wnt5a/Ror2 in hyperuricemia-induced EMT in kidney tubular injury. METHODS A hyperuricemia model was performed in male Swiss background mice (3 months old, 30-40 g) with daily intraperitoneal injections of 125 mg/kg body weight (BW) of uric acid. The mice were terminated on day 7 (UA7, n=5) and on day 14 (UA14, n=5). Allopurinol groups (UAl7 and UAl14, each n=5) were added with oral 50 mg/kg BW of allopurinol treatment. The serum uric acid level was quantified, and tubular injury was assessed based on PAS staining. Reverse transcriptase-PCR was done to quantify Wnt5a, Ror2, E-cadherin, and vimentin expressions. IHC staining was done for E-cadherin and collagen I. We used the Shapiro-Wilk for normality testing and one-way ANOVA for variance analysis with a P<0.05 as significance level using SPSS 22 software. RESULTS The hyperuricemia groups had a higher uric acid level, which was associated with a higher tubular injury score. Meanwhile, the allopurinol groups had a significantly lower uric acid level and tubular injury than the uric acid groups. Reverse transcriptase-PCR revealed downregulation of the E-cadherin expression. While vimentin and collagen I expression are upregulated, which was associated with a higher Wnt5a expression. However, the allopurinol groups had reverse results. Immunostaining revealed a reduction in E-cadherin staining in the epithelial cells and collagen I positive staining in the epithelial cells and the interstitial areas. CONCLUSION Hyperuricemia induced tubular injury, which might have been mediated by EMT through the activation of Wnt5a.
Collapse
Affiliation(s)
| | - Nur Arfian
- Department of Anatomy, Medical Faculty, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Efrayim Suryadi
- Department of Anatomy, Medical Faculty, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Muhammad Mansyur Romi
- Department of Anatomy, Medical Faculty, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Untung Tranggono
- Department of Surgery, Medical Faculty, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | |
Collapse
|
56
|
Foulquier S, Daskalopoulos EP, Lluri G, Hermans KCM, Deb A, Blankesteijn WM. WNT Signaling in Cardiac and Vascular Disease. Pharmacol Rev 2018; 70:68-141. [PMID: 29247129 PMCID: PMC6040091 DOI: 10.1124/pr.117.013896] [Citation(s) in RCA: 233] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
WNT signaling is an elaborate and complex collection of signal transduction pathways mediated by multiple signaling molecules. WNT signaling is critically important for developmental processes, including cell proliferation, differentiation and tissue patterning. Little WNT signaling activity is present in the cardiovascular system of healthy adults, but reactivation of the pathway is observed in many pathologies of heart and blood vessels. The high prevalence of these pathologies and their significant contribution to human disease burden has raised interest in WNT signaling as a potential target for therapeutic intervention. In this review, we first will focus on the constituents of the pathway and their regulation and the different signaling routes. Subsequently, the role of WNT signaling in cardiovascular development is addressed, followed by a detailed discussion of its involvement in vascular and cardiac disease. After highlighting the crosstalk between WNT, transforming growth factor-β and angiotensin II signaling, and the emerging role of WNT signaling in the regulation of stem cells, we provide an overview of drugs targeting the pathway at different levels. From the combined studies we conclude that, despite the sometimes conflicting experimental data, a general picture is emerging that excessive stimulation of WNT signaling adversely affects cardiovascular pathology. The rapidly increasing collection of drugs interfering at different levels of WNT signaling will allow the evaluation of therapeutic interventions in the pathway in relevant animal models of cardiovascular diseases and eventually in patients in the near future, translating the outcomes of the many preclinical studies into a clinically relevant context.
Collapse
Affiliation(s)
- Sébastien Foulquier
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Evangelos P Daskalopoulos
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Gentian Lluri
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Kevin C M Hermans
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Arjun Deb
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - W Matthijs Blankesteijn
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| |
Collapse
|
57
|
Abstract
Chronic diseases account for approximately 45% of all deaths in developed countries and are particularly prevalent in countries with the most sophisticated and robust public health systems. Chronic metabolic diseases, specifically lifestyle-related diseases pertaining to diet and exercise, continue to be difficult to treat clinically. The most prevalent of these chronic metabolic diseases include obesity, diabetes, non-alcoholic fatty liver disease, chronic kidney disease and cardiovascular disease and will be the focus of this review. Wnt proteins are highly conserved glycoproteins best known for their role in development and homeostasis of tissues. Given the importance of Wnt signalling in homeostasis, aberrant Wnt signalling likely regulates metabolic processes and may contribute to the development of chronic metabolic diseases. Expression of Wnt proteins and dysfunctional Wnt signalling has been reported in multiple chronic diseases. It is interesting to speculate about an interrelationship between the Wnt signalling pathways as a potential pathological mechanism in chronic metabolic diseases. The aim of this review is to summarize reported findings on the contrasting roles of Wnt signalling in lifestyle-related chronic metabolic diseases; specifically, the contribution of Wnt signalling to lipid accumulation, fibrosis and chronic low-grade inflammation.
Collapse
Affiliation(s)
- Ian Ackers
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- OHF Fellow, Translational Biomedical Sciences Doctoral Program, Ohio University, Athens, OH, USA
| | - Ramiro Malgor
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
- Ramiro Malgor, Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, 202b Academic & Research Center, Athens, OH, 45701-2979 USA.
| |
Collapse
|
58
|
Wang W, Yu X, Wu C, Jin H. Differential effects of Wnt5a on the proliferation, differentiation and inflammatory response of keratinocytes. Mol Med Rep 2017; 17:4043-4048. [PMID: 29286164 DOI: 10.3892/mmr.2017.8358] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 11/24/2017] [Indexed: 11/06/2022] Open
Abstract
The predominant role of Wnt family member 5A (Wnt5a) is to induce non-canonical Wnt signalling pathways, including the Wnt‑Ca2+ and Wnt‑planar cell polarity pathways. Enhanced Wnt5a expression is involved in the formation of psoriatic plaques; however, its mechanistic role remains to be determined. In the present study, the effects of Wnt5a expression on HaCaT keratinocytes were investigated. HaCaT cells were cultured in medium supplemented with 0, 40 or 80 ng/ml Wnt5a for 24 h. Cell proliferation, the cell cycle, gene expression and inflammatory responses were investigated using Cell‑Counting Kit‑8 assays, flow cytometry analyses, reverse transcription‑quantitative polymerase chain reaction analyses and enzyme‑linked immunosorbent assays, respectively. Wnt5a treatment was revealed to suppress cell proliferation in HaCaT cells. Furthermore, Wnt5a was also demonstrated to increase the proportion of HaCaT cells arrested at the G2/M phase of the cell cycle, but reduce the proportion of HaCaT cells arrested at G0/G1 phase cells. In addition, the expression levels of the differentiation markers, including filaggrin, keratin 1 and keratin 10 were revealed to be downregulated in HaCaT cells. Expression of the canonical Wnt signalling genes (β‑catenin and cyclin D1) and proliferation markers, such as Ki‑67 and proliferating cell nuclear antigen in HaCaT cells were also revealed to be downregulated. However, the expression levels of inflammatory response markers (interferon‑γ, interleukin‑8 and interleukin‑17A) were revealed to be upregulated in HaCaT cells following Wnt5a treatment. These findings suggest that Wnt5a expression may be involved in the inhibition of cell differentiation and the induction of an inflammatory response in patients with psoriasis.
Collapse
Affiliation(s)
- Wenming Wang
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Xiaoling Yu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Chao Wu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| | - Hongzhong Jin
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, P.R. China
| |
Collapse
|
59
|
McCord M, Mukouyama YS, Gilbert MR, Jackson S. Targeting WNT Signaling for Multifaceted Glioblastoma Therapy. Front Cell Neurosci 2017; 11:318. [PMID: 29081735 PMCID: PMC5645527 DOI: 10.3389/fncel.2017.00318] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/26/2017] [Indexed: 01/17/2023] Open
Abstract
The WNT signaling pathway has been of great interest to developmental biologists for decades and has more recently become a central topic for study in cancer biology. It is vital for cell growth and regulation of embryogenesis in many organ systems, particularly the CNS and its associated vasculature. We summarize the role of WNT in CNS development and describe how WNT signaling makes key contributions to malignant glioma stemness, invasiveness, therapeutic resistance, and angiogenesis. The role of WNT in these mechanisms, along with creation and maintainance of the blood-brain barrier (BBB), points to the potential of WNT as a multi-faceted target in malignant glioma therapy.
Collapse
Affiliation(s)
- Matthew McCord
- Neuro-Oncology Branch, National Cancer Institute, Bethesda, MD, United States
| | - Yoh-Suke Mukouyama
- Laboratory of Stem Cell and Neuro-Vascular Biology, Genetic and Developmental Biology Center, National Heart, Lung and Blood Institute, Bethesda, MD, United States
| | - Mark R Gilbert
- Neuro-Oncology Branch, National Cancer Institute, Bethesda, MD, United States
| | - Sadhana Jackson
- Neuro-Oncology Branch, National Cancer Institute, Bethesda, MD, United States
| |
Collapse
|
60
|
Susman MW, Karuna EP, Kunz RC, Gujral TS, Cantú AV, Choi SS, Jong BY, Okada K, Scales MK, Hum J, Hu LS, Kirschner MW, Nishinakamura R, Yamada S, Laird DJ, Jao LE, Gygi SP, Greenberg ME, Ho HYH. Kinesin superfamily protein Kif26b links Wnt5a-Ror signaling to the control of cell and tissue behaviors in vertebrates. eLife 2017; 6:e26509. [PMID: 28885975 PMCID: PMC5590807 DOI: 10.7554/elife.26509] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 08/15/2017] [Indexed: 12/20/2022] Open
Abstract
Wnt5a-Ror signaling constitutes a developmental pathway crucial for embryonic tissue morphogenesis, reproduction and adult tissue regeneration, yet the molecular mechanisms by which the Wnt5a-Ror pathway mediates these processes are largely unknown. Using a proteomic screen, we identify the kinesin superfamily protein Kif26b as a downstream target of the Wnt5a-Ror pathway. Wnt5a-Ror, through a process independent of the canonical Wnt/β-catenin-dependent pathway, regulates the cellular stability of Kif26b by inducing its degradation via the ubiquitin-proteasome system. Through this mechanism, Kif26b modulates the migratory behavior of cultured mesenchymal cells in a Wnt5a-dependent manner. Genetic perturbation of Kif26b function in vivo caused embryonic axis malformations and depletion of primordial germ cells in the developing gonad, two phenotypes characteristic of disrupted Wnt5a-Ror signaling. These findings indicate that Kif26b links Wnt5a-Ror signaling to the control of morphogenetic cell and tissue behaviors in vertebrates and reveal a new role for regulated proteolysis in noncanonical Wnt5a-Ror signal transduction.
Collapse
Affiliation(s)
- Michael W Susman
- Department of NeurobiologyHarvard Medical SchoolBostonUnited States
| | - Edith P Karuna
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Ryan C Kunz
- Department of Cell BiologyHarvard Medical SchoolBostonUnited States
| | - Taranjit S Gujral
- Department of Systems BiologyHarvard Medical SchoolBostonUnited States
- Division of Human BiologyFred Hutchinson Cancer Research CenterSeattleUnited States
| | - Andrea V Cantú
- Department of Obstetrics, Gynecology and Reproductive SciencesCenter for Reproductive Sciences, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of CaliforniaSan FranciscoUnited States
| | - Shannon S Choi
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Brigette Y Jong
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Kyoko Okada
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Michael K Scales
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Jennie Hum
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Linda S Hu
- Department of NeurobiologyHarvard Medical SchoolBostonUnited States
| | - Marc W Kirschner
- Department of Systems BiologyHarvard Medical SchoolBostonUnited States
| | - Ryuichi Nishinakamura
- Department of Kidney DevelopmentInstitute of Molecular Embryology and Genetics, Kumamoto UniversityKumamotoJapan
| | - Soichiro Yamada
- Department of Biomedical EngineeringUniversity of CaliforniaDavisUnited States
| | - Diana J Laird
- Department of Obstetrics, Gynecology and Reproductive SciencesCenter for Reproductive Sciences, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of CaliforniaSan FranciscoUnited States
| | - Li-En Jao
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| | - Steven P Gygi
- Department of Cell BiologyHarvard Medical SchoolBostonUnited States
| | | | - Hsin-Yi Henry Ho
- Department of NeurobiologyHarvard Medical SchoolBostonUnited States
- Department of Cell Biology and Human AnatomyUniversity of California, Davis School of MedicineDavisUnited States
| |
Collapse
|
61
|
Shi YN, Zhu N, Liu C, Wu HT, Gui Y, Liao DF, Qin L. Wnt5a and its signaling pathway in angiogenesis. Clin Chim Acta 2017. [DOI: 10.1016/j.cca.2017.06.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
62
|
Karki S, Ngo DTM, Farb MG, Park SY, Saggese SM, Hamburg NM, Carmine B, Hess DT, Walsh K, Gokce N. WNT5A regulates adipose tissue angiogenesis via antiangiogenic VEGF-A 165b in obese humans. Am J Physiol Heart Circ Physiol 2017; 313:H200-H206. [PMID: 28411232 PMCID: PMC6148084 DOI: 10.1152/ajpheart.00776.2016] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/20/2017] [Accepted: 04/05/2017] [Indexed: 12/16/2022]
Abstract
Experimental studies have suggested that Wingless-related integration site 5A (WNT5A) is a proinflammatory secreted protein that is associated with metabolic dysfunction in obesity. Impaired angiogenesis in fat depots has been implicated in the development of adipose tissue capillary rarefaction, hypoxia, inflammation, and metabolic dysfunction. We have recently demonstrated that impaired adipose tissue angiogenesis is associated with overexpression of antiangiogenic factor VEGF-A165b in human fat and the systemic circulation. In the present study, we postulated that upregulation of WNT5A is associated with angiogenic dysfunction and examined its role in regulating VEGF-A165b expression in human obesity. We biopsied subcutaneous and visceral adipose tissue from 38 obese individuals (body mass index: 44 ± 7 kg/m2, age: 37 ± 11 yr) during planned bariatric surgery and characterized depot-specific protein expression of VEGF-A165b and WNT5A using Western blot analysis. In both subcutaneous and visceral fat, VEGF-A165b expression correlated strongly with WNT5A protein (r = 0.9, P < 0.001). In subcutaneous adipose tissue where angiogenic capacity is greater than in the visceral depot, exogenous human recombinant WNT5A increased VEGF-A165b expression in both whole adipose tissue and isolated vascular endothelial cell fractions (P < 0.01 and P < 0.05, respectively). This was associated with markedly blunted angiogenic capillary sprout formation in human fat pad explants. Moreover, recombinant WNT5A increased secretion of soluble fms-like tyrosine kinase-1, a negative regulator of angiogenesis, in the sprout media (P < 0.01). Both VEGF-A165b-neutralizing antibody and secreted frizzled-related protein 5, which acts as a decoy receptor for WNT5A, significantly improved capillary sprout formation and reduced soluble fms-like tyrosine kinase-1 production (P < 0.05). We demonstrated a significant regulatory nexus between WNT5A and antiangiogenic VEGF-A165b in the adipose tissue of obese subjects that was linked to angiogenic dysfunction. Elevated WNT5A expression in obesity may function as a negative regulator of angiogenesis.NEW & NOTEWORTHY Wingless-related integration site 5a (WNT5A) negatively regulates adipose tissue angiogenesis via VEGF-A165b in human obesity.
Collapse
Affiliation(s)
- Shakun Karki
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Doan T M Ngo
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Melissa G Farb
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Song Young Park
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Samantha M Saggese
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Naomi M Hamburg
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Brian Carmine
- Department of General Surgery, Boston University School of Medicine, Boston, Massachusetts
| | - Donald T Hess
- Department of General Surgery, Boston University School of Medicine, Boston, Massachusetts
| | - Kenneth Walsh
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| | - Noyan Gokce
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts; and
| |
Collapse
|
63
|
Nucleoside reverse transcriptase inhibitors (NRTIs) induce proinflammatory cytokines in the CNS via Wnt5a signaling. Sci Rep 2017. [PMID: 28646196 PMCID: PMC5482870 DOI: 10.1038/s41598-017-03446-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
HAART is very effective in suppressing HIV-1 replication in patients. However, patients staying on long-term HAART still develop various HIV-associated neurological disorders, even when the viral load is low. The underlying pathogenic mechanisms are largely unknown. Emerging evidence implicated that persistent neuroinflammation plays an important role in NeuroAIDS. Although residual virus or viral proteins are commonly thought as the causal factors, we are interested in the alternative possibility that HAART critically contributes to the neuroinflammation in the central nervous system (CNS). To test this hypothesis, we have determined the effect of NRTIs on the expression of proinflammatory cytokines in the various CNS regions. Mice (C57Bl/6) were administered with AZT (Zidovudine 100 mg/kg/day), 3TC (Lamivudine 50 mg/kg/day) or D4T (Stavudine 10 mg/kg/day) for 5 days, and cortices, hippocampi and spinal cords were collected for immunoblotting. Our results showed that NRTI administration up-regulated cytokines, including IL-1β, TNF-α and IL-6 in various CNS regions. In addition, we found that NRTIs also up-regulated Wnt5a protein. Importantly, BOX5 attenuated NRTI-induced cytokine up-regulation. These results together suggest that NRTIs up-regulate proinflammatory cytokines via a Wnt5a signaling-dependent mechanism. Our findings may help understand the potential pathogenic mechanisms of HAART-associated NeuroAIDS and design effective adjuvants.
Collapse
|
64
|
Abraityte A, Vinge LE, Askevold ET, Lekva T, Michelsen AE, Ranheim T, Alfsnes K, Fiane A, Aakhus S, Lunde IG, Dahl CP, Aukrust P, Christensen G, Gullestad L, Yndestad A, Ueland T. Wnt5a is elevated in heart failure and affects cardiac fibroblast function. J Mol Med (Berl) 2017; 95:767-777. [PMID: 28357477 DOI: 10.1007/s00109-017-1529-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 03/13/2017] [Accepted: 03/21/2017] [Indexed: 12/17/2022]
Abstract
Wnt signaling is dysregulated in heart failure (HF) and may promote cardiac hypertrophy, fibrosis, and inflammation. Blocking the Wnt ligand Wnt5a prevents HF in animal models. However, the role of Wnt5a in human HF and its functions in cardiac cells remain unclear. Here, we investigated Wnt5a regulation in HF patients and its effects on primary mouse and human cardiac fibroblasts. Serum Wnt5a was elevated in HF patients and associated with hemodynamic, neurohormonal, and clinical measures of disease severity. In failing human hearts, Wnt5a protein correlated with interleukin (IL)-6 and tissue inhibitor of metalloproteinase (TIMP)-1. Wnt5a messenger RNA (mRNA) levels were markedly upregulated in failing myocardium and both mRNA and protein levels declined following left ventricular assist device therapy. In primary mouse and human cardiac fibroblasts, recombinant Wnt5a dose-dependently upregulated mRNA and protein release of IL-6 and TIMP-1. Wnt5a did not affect β-catenin levels, but activated extracellular signal-regulated kinase 1/2 (ERK1/2) signaling. Importantly, inhibition of ERK1/2 activation attenuated Wnt5a-induced release of IL-6 and TIMP-1. In conclusion, our results show that Wnt5a is elevated in the serum and myocardium of HF patients and is associated with measures of progressive HF. Wnt5a induces IL-6 and TIMP-1 in cardiac fibroblasts, which might promote myocardial inflammation and fibrosis, and thereby contribute to HF progression. KEY MESSAGES • Wnt5a is elevated in serum and myocardium of HF patients and is associated with measures of progressive HF. • In cardiac fibroblasts, Wnt5a upregulates interleukin (IL)-6 and tissue inhibitor of metalloproteinase (TIMP)-1 through the ERK pathway. • Wnt5a-mediated effects might promote myocardial inflammation and fibrosis, and thereby contribute to HF progression.
Collapse
Affiliation(s)
- Aurelija Abraityte
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway. .,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway. .,Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.
| | - Leif E Vinge
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Department of Medicine, Diakonhjemmet Hospital, Postboks 23 Vinderen, 0319, Oslo, Norway
| | - Erik T Askevold
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway
| | - Tove Lekva
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway
| | - Annika E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway
| | - Trine Ranheim
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway
| | - Katrine Alfsnes
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway
| | - Arnt Fiane
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Department of Cardiothoracic Surgery, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway
| | - Svend Aakhus
- Department of Cardiology, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Department of Circulation and Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Postboks 8905 NTNU, Faculty of Medicine, 7491, Trondheim, Norway
| | - Ida G Lunde
- Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Postboks 4956 Nydalen, 0424, Oslo, Norway
| | - Christen P Dahl
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Department of Cardiology, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway
| | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,K. G. Jebsen Inflammation Research Center, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,K. G. Jebsen Thrombosis Research and Expertise Center, The Arctic University of Norway, Postboks 6050 Langnes, 9037, Tromsø, Norway
| | - Geir Christensen
- Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Postboks 4956 Nydalen, 0424, Oslo, Norway
| | - Lars Gullestad
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Department of Cardiology, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway
| | - Arne Yndestad
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,Center for Heart Failure Research, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,K. G. Jebsen Inflammation Research Center, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway
| | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet; Postboks 4950 Nydalen, 0424, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Postboks 1078 Blindern, 0316, Oslo, Norway.,K. G. Jebsen Thrombosis Research and Expertise Center, The Arctic University of Norway, Postboks 6050 Langnes, 9037, Tromsø, Norway
| |
Collapse
|
65
|
Luo Y, Duan H, Qian Y, Feng L, Wu Z, Wang F, Feng J, Yang D, Qin Z, Yan X. Macrophagic CD146 promotes foam cell formation and retention during atherosclerosis. Cell Res 2017; 27:352-372. [PMID: 28084332 PMCID: PMC5339843 DOI: 10.1038/cr.2017.8] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 10/18/2016] [Accepted: 11/28/2016] [Indexed: 12/24/2022] Open
Abstract
The persistence of cholesterol-engorged macrophages (foam cells) in the artery wall fuels the development of atherosclerosis. However, the mechanism that regulates the formation of macrophage foam cells and impedes their emigration out of inflamed plaques is still elusive. Here, we report that adhesion receptor CD146 controls the formation of macrophage foam cells and their retention within the plaque during atherosclerosis exacerbation. CD146 is expressed on the macrophages in human and mouse atheroma and can be upregulated by oxidized low-density lipoprotein (oxLDL). CD146 triggers macrophage activation by driving the internalization of scavenger receptor CD36 during lipid uptake. In response to oxLDL, macrophages show reduced migratory capacity toward chemokines CCL19 and CCL21; this capacity can be restored by blocking CD146. Genetic deletion of macrophagic CD146 or targeting of CD146 with an antibody result in much less complex plaques in high-fat diet-fed ApoE-/- mice by causing lipid-loaded macrophages to leave plaques. Collectively, our findings identify CD146 as a novel retention signal that traps macrophages within the artery wall, and a promising therapeutic target in atherosclerosis treatment.
Collapse
Affiliation(s)
- Yongting Luo
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Hongxia Duan
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yining Qian
- Beijing Anzhen Hospital of the Capital University of Medical Sciences, Beijing 100029, China
| | - Liqun Feng
- Beijing Anzhen Hospital of the Capital University of Medical Sciences, Beijing 100029, China
| | - Zhenzhen Wu
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Fei Wang
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Jing Feng
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Dongling Yang
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhihai Qin
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiyun Yan
- Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| |
Collapse
|
66
|
The Role of TLR2, TLR4, and TLR9 in the Pathogenesis of Atherosclerosis. Int J Inflam 2016; 2016:1532832. [PMID: 27795867 PMCID: PMC5067326 DOI: 10.1155/2016/1532832] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 09/05/2016] [Accepted: 09/15/2016] [Indexed: 02/07/2023] Open
Abstract
Toll-like receptors (TLRs) are key players in the pathogenesis of inflammatory conditions including coronary arterial disease (CAD). They are expressed by a variety of immune cells where they recognize pathogen-associated molecular patterns (PAMPs). TLRs recruit adaptor molecules, including myeloid differentiation primary response protein (MYD88) and TIRF-related adaptor protein (TRAM), to mediate activation of MAPKs and NF-kappa B pathways. They are associated with the development of CAD through various mechanisms. TLR4 is expressed in lipid-rich and atherosclerotic plaques. In TLR2−/− and TLR4−/− mice, atherosclerosis-associated inflammation was diminished. Moreover, TLR2 and TLR4 may induce expression of Wnt5a in advanced staged atheromatous plaque leading to activation of the inflammatory processes. TLR9 is activated by CpG motifs in nucleic acids and have been implicated in macrophage activation and the uptake of oxLDL from the circulation. Furthermore, TLR9 also stimulates interferon-α (INF-α) secretion and increases cytotoxic activity of CD4+ T-cells towards coronary artery tunica media smooth muscle cells. This review outlines the pathophysiological role of TLR2, TLR4, and TLR9 in atherosclerosis, focusing on evidence from animal models of the disease.
Collapse
|
67
|
Farb MG, Karki S, Park SY, Saggese SM, Carmine B, Hess DT, Apovian C, Fetterman JL, Bretón-Romero R, Hamburg NM, Fuster JJ, Zuriaga MA, Walsh K, Gokce N. WNT5A-JNK regulation of vascular insulin resistance in human obesity. Vasc Med 2016; 21:489-496. [PMID: 27688298 DOI: 10.1177/1358863x16666693] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Obesity is associated with the development of vascular insulin resistance; however, pathophysiological mechanisms are poorly understood. We sought to investigate the role of WNT5A-JNK in the regulation of insulin-mediated vasodilator responses in human adipose tissue arterioles prone to endothelial dysfunction. In 43 severely obese (BMI 44±11 kg/m2) and five metabolically normal non-obese (BMI 26±2 kg/m2) subjects, we isolated arterioles from subcutaneous and visceral fat during planned surgeries. Using videomicroscopy, we examined insulin-mediated, endothelium-dependent vasodilator responses and characterized adipose tissue gene and protein expression using real-time polymerase chain reaction and Western blot analyses. Immunofluorescence was used to quantify endothelial nitric oxide synthase (eNOS) phosphorylation. Insulin-mediated vasodilation was markedly impaired in visceral compared to subcutaneous vessels from obese subjects (p<0.001), but preserved in non-obese individuals. Visceral adiposity was associated with increased JNK activation and elevated expression of WNT5A and its non-canonical receptors, which correlated negatively with insulin signaling. Pharmacological JNK antagonism with SP600125 markedly improved insulin-mediated vasodilation by sixfold (p<0.001), while endothelial cells exposed to recombinant WNT5A developed insulin resistance and impaired eNOS phosphorylation (p<0.05). We observed profound vascular insulin resistance in the visceral adipose tissue arterioles of obese subjects that was associated with up-regulated WNT5A-JNK signaling and impaired endothelial eNOS activation. Pharmacological JNK antagonism markedly improved vascular endothelial function, and may represent a potential therapeutic target in obesity-related vascular disease.
Collapse
Affiliation(s)
- Melissa G Farb
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Shakun Karki
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Song-Young Park
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Samantha M Saggese
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Brian Carmine
- Department of General Surgery, Boston University School of Medicine, Boston, MA, USA
| | - Donald T Hess
- Department of General Surgery, Boston University School of Medicine, Boston, MA, USA
| | - Caroline Apovian
- Department of Medicine, Section of Endocrinology, Diabetes and Nutrition, Boston University School of Medicine, Boston, MA, USA
| | - Jessica L Fetterman
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Rosa Bretón-Romero
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Naomi M Hamburg
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - José J Fuster
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - María A Zuriaga
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Kenneth Walsh
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Noyan Gokce
- Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| |
Collapse
|
68
|
Liu J, Zhang L, Zhou Y, Zhu D, Wang Q, Hao L. Aberrant activation of Wnt pathways in arteries associates with vascular calcification in chronic kidney disease. Int Urol Nephrol 2016; 48:1313-1319. [DOI: 10.1007/s11255-016-1291-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/11/2016] [Indexed: 12/12/2022]
|
69
|
Emerging Role and Therapeutic Implication of Wnt Signaling Pathways in Autoimmune Diseases. J Immunol Res 2016; 2016:9392132. [PMID: 27110577 PMCID: PMC4826689 DOI: 10.1155/2016/9392132] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/05/2016] [Accepted: 03/09/2016] [Indexed: 12/13/2022] Open
Abstract
The Wnt signaling pathway plays a key role in many biological aspects, such as cellular proliferation, tissue regeneration, embryonic development, and other systemic effects. Under a physiological condition, it is tightly controlled at different layers and arrays, and a dysregulated activation of this signaling has been implicated into the pathogenesis of various human disorders, including autoimmune diseases. Despite the fact that therapeutic interventions are available for ameliorating disease manifestations, there is no curative therapy currently available for autoimmune disorders. Increasing lines of evidence have suggested a crucial role of Wnt signaling during the pathogenesis of many autoimmune diseases; in addition, some of microRNAs (miRNAs), a class of small, noncoding RNA molecules capable of transcriptionally regulating gene expression, have also recently been demonstrated to possess both physiological and pathological roles in autoimmune diseases by regulating the Wnt signaling pathway. This review summarizes currently our understanding of the pathogenic roles of Wnt signaling in several major autoimmune disorders and miRNAs, those targeting Wnt signaling in autoimmune diseases, with a focus on the implication of the Wnt signaling as potential biomarkers and therapeutic targets in immune diseases, as well as miRNA-mediated regulation of Wnt signaling activation in the development of autoimmune diseases.
Collapse
|
70
|
Bretón-Romero R, Feng B, Holbrook M, Farb MG, Fetterman JL, Linder EA, Berk BD, Masaki N, Weisbrod RM, Inagaki E, Gokce N, Fuster JJ, Walsh K, Hamburg NM. Endothelial Dysfunction in Human Diabetes Is Mediated by Wnt5a-JNK Signaling. Arterioscler Thromb Vasc Biol 2016; 36:561-9. [PMID: 26800561 DOI: 10.1161/atvbaha.115.306578] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/08/2016] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Endothelial dysfunction is linked to insulin resistance, inflammatory activation, and increased cardiovascular risk in diabetes mellitus; however, the mechanisms remain incompletely understood. Recent studies have identified proinflammatory signaling of wingless-type family member (Wnt) 5a through c-jun N-terminal kinase (JNK) as a regulator of metabolic dysfunction with potential relevance to vascular function. We sought to gain evidence that increased activation of Wnt5a-JNK signaling contributes to impaired endothelial function in patients with diabetes mellitus. APPROACH AND RESULTS We measured flow-mediated dilation of the brachial artery and characterized freshly isolated endothelial cells by protein expression, eNOS activation, and nitric oxide production in 85 subjects with type 2 diabetes mellitus (n=42) and age- and sex-matched nondiabetic controls (n=43) and in human aortic endothelial cells treated with Wnt5a. Endothelial cells from patients with diabetes mellitus displayed 1.3-fold higher Wnt5a levels (P=0.01) along with 1.4-fold higher JNK activation (P<0.01) without a difference in total JNK levels. Higher JNK activation was associated with lower flow-mediated dilation, consistent with endothelial dysfunction (r=0.53, P=0.02). Inhibition of Wnt5a and JNK signaling restored insulin and A23187-mediated eNOS activation and improved nitric oxide production in endothelial cells from patients with diabetes mellitus. In endothelial cells from nondiabetic controls, rWnt5a treatment inhibited eNOS activation replicating the diabetic endothelial phenotype. In human aortic endothelial cells, Wnt5a-induced impairment of eNOS activation and nitric oxide production was reversed by Wnt5a and JNK inhibition. CONCLUSIONS Our findings demonstrate that noncanonical Wnt5a signaling and JNK activity contribute to vascular insulin resistance and endothelial dysfunction and may represent a novel therapeutic opportunity to protect the vasculature in patients with diabetes mellitus.
Collapse
Affiliation(s)
- Rosa Bretón-Romero
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Bihua Feng
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Monika Holbrook
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Melissa G Farb
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Jessica L Fetterman
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Erika A Linder
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Brittany D Berk
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Nobuyuki Masaki
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Robert M Weisbrod
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Elica Inagaki
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Noyan Gokce
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Jose J Fuster
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Kenneth Walsh
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA
| | - Naomi M Hamburg
- From the Whitaker Cardiovascular Institute, Department of Medicine, Boston University School of Medicine, MA.
| |
Collapse
|
71
|
Ehrlichia chaffeensis Exploits Canonical and Noncanonical Host Wnt Signaling Pathways To Stimulate Phagocytosis and Promote Intracellular Survival. Infect Immun 2015; 84:686-700. [PMID: 26712203 DOI: 10.1128/iai.01289-15] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/11/2015] [Indexed: 11/20/2022] Open
Abstract
Ehrlichia chaffeensis invades and survives in phagocytes by modulating host cell processes and evading innate defenses, but the mechanisms are not fully defined. Recently we have determined that E. chaffeensis tandem repeat proteins (TRPs) are type 1 secreted effectors involved in functionally diverse interactions with host targets, including components of the evolutionarily conserved Wnt signaling pathways. In this study, we demonstrated that induction of host canonical and noncanonical Wnt pathways by E. chaffeensis TRP effectors stimulates phagocytosis and promotes intracellular survival. After E. chaffeensis infection, canonical and noncanonical Wnt signalings were significantly stimulated during early stages of infection (1 to 3 h) which coincided with dephosphorylation and nuclear translocation of β-catenin, a major canonical Wnt signal transducer, and NFATC1, a noncanonical Wnt transcription factor. In total, the expression of ∼44% of Wnt signaling target genes was altered during infection. Knockdown of TRP120-interacting Wnt pathway components/regulators and other critical components, such as Wnt5a ligand, Frizzled 5 receptor, β-catenin, nuclear factor of activated T cells (NFAT), and major signaling molecules, resulted in significant reductions in the ehrlichial load. Moreover, small-molecule inhibitors specific for components of canonical and noncanonical (Ca(2+) and planar cell polarity [PCP]) Wnt pathways, including IWP-2, which blocks Wnt secretion, significantly decreased ehrlichial infection. TRPs directly activated Wnt signaling, as TRP-coated microspheres triggered phagocytosis which was blocked by Wnt pathway inhibitors, demonstrating a key role of TRP activation of Wnt pathways to induce ehrlichial phagocytosis. These novel findings reveal that E. chaffeensis exploits canonical and noncanonical Wnt pathways through TRP effectors to facilitate host cell entry and promote intracellular survival.
Collapse
|
72
|
Zhao D, Xu A, Dai Z, Peng J, Zhu M, Shen J, Zheng Q, Ran Z. WNT5A transforms intestinal CD8αα⁺ IELs into an unconventional phenotype with pro-inflammatory features. BMC Gastroenterol 2015; 15:173. [PMID: 26652024 PMCID: PMC4676129 DOI: 10.1186/s12876-015-0402-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 11/27/2015] [Indexed: 01/22/2023] Open
Abstract
Background Intestinal intraepithelial lymphocytes that reside within the epithelium of the intestine form one of the main branches of the immune system. A majority of IELs express CD8α homodimer together with other molecules associated with immune regulation. Growing evidence points to the WNT signaling pathway as a pivotal piece in the immune balance and focuses on its direct regulation in intestinal epithelium. Therefore we decided to investigate its role in IELs’ immune status determination. Method DSS colitis was induced in male C57BL mice. IELs were isolated from colon samples using mechanical dissociation followed by percoll gradient purification and Magnetic-activated cell sorting. Phenotype and cytokine production and condition with Wnts were analyzed by flow cytometry, real-time PCR or ELISA. Proliferation of lymphocytes were evaluated using CFSE dilution. Cell responses after WNT pathway interference were also evaluated. Results Non-canonical WNT pathway elements represented by FZD5, WNT5A and NFATc1 were remarkably elevated in colitis IELs. The non-canonical WNT5A skewed them into a pro-inflammatory category as measured by inhibitory cell surface marker LAG3, LY49E, NKG2A and activated marker CD69 and FASL. Gaining of a pro-inflammatory marker was correlated with increased IFN-γ production but not TNF whilst decreased TGF-β and IL-10. Both interrupting WNT5A/PKC pathway and adding canonical WNT stimulants could curtail its immune-activating effect. Conclusion Canonical and non-canonical WNT signals act in opposing manners concerning determining CD8αα+ IELs immune status. Targeting non-canonical WNT pathway may be promising in tackling inflammatory bowel disease.
Collapse
Affiliation(s)
- Di Zhao
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Antao Xu
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Zhanghan Dai
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Jiangchen Peng
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Mingming Zhu
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Jun Shen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Qing Zheng
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China
| | - Zhihua Ran
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, 145 Middle Shandong Road, Shanghai, 200001, China.
| |
Collapse
|
73
|
Wang X, Wang S, Jin X, Wang N, Luo Y, Teng Y. Detection and preliminary screening of the human gene expression profile for Hirschsprung's disease. Mol Med Rep 2015; 13:641-50. [PMID: 26648025 PMCID: PMC4686122 DOI: 10.3892/mmr.2015.4633] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 09/01/2015] [Indexed: 12/27/2022] Open
Abstract
The present study investigated a genome microarray of colorectal lesions (spasm segments) in children with Hirschsprung's disease (HSCR), and analyzed the results. In addition, the present study screened for differentially expressed genes in children with HSCR. Microarray technology was used to examine the human gene expression profiles of the colorectal lesions (spasm segments) of six children with HSCR, and three normal colon tissue samples. The data were analyzed be determining P‑values of significance and absolute fold changes. Preliminary screening was performed to identify genes exhibiting significant differential expression in children with HSCR, and these target genes were analyzed in subsequent verification and analytical investigations. Of >20,000 detected human genes, the preliminary screenings demonstrated that 3,850 genes were differentially expressed and upregulated, with P<0.05 and >2‑fold absolute changes in expression. In addition, 645 differentially expressed genes with P<0.05 and >2‑fold absolute changes were downregulated. Of the upregulated genes, 118 were involved in classic signaling pathways, compared with 11 of the downregulated genes (P<0.001; absolute fold change >2‑fold). HSCR etiology is complex and often involves multiple gene changes. Microarray technology can produce large quantities of gene expression data simultaneously, and analyzing this data using various techniques may provide a fast and efficient method for identifying novel gene targets and for investigating the mechanisms underlying HSCR pathogenesis.
Collapse
Affiliation(s)
- Xin Wang
- Tumour Laboratory of Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Shiqi Wang
- Tumour Laboratory of Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Xianqing Jin
- Tumour Laboratory of Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Ning Wang
- Tumour Laboratory of Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Yuanyuan Luo
- Tumour Laboratory of Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Yinping Teng
- Tumour Laboratory of Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| |
Collapse
|
74
|
Bougault C, Briolay A, Boutet MA, Pilet P, Delplace S, Le Goff B, Guicheux J, Blanchard F, Magne D. Wnt5a is expressed in spondyloarthritis and exerts opposite effects on enthesis and bone in murine organ and cell cultures. Transl Res 2015; 166:627-38. [PMID: 26163991 DOI: 10.1016/j.trsl.2015.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/07/2015] [Accepted: 06/16/2015] [Indexed: 12/17/2022]
Abstract
Spondyloarthritis (SpA) is a chronic inflammatory joint disorder that initiates at the enthesis, where tendons attach to bone through a fibrocartilage zone. At late stages, excessive bone apposition appears within the diseased enthesis. Because Wnt5a participates to normal bone formation and appears related to inflammatory processes, we investigated the role of this Wnt growth factor in inflammation-associated ossification in SpA. The concentration of Wnt5a assessed by enzyme-linked immunosorbent assay in synovial fluids of patients with SpA (2.58 ± 0.98 ng/mL) was higher than in osteoarthritic patients (1.33 ± 0.71 ng/mL). In murine primary cultures of tendon cells, chondrocytes, and osteoblasts and in an organotypic model of mouse ankle, we showed that tumor necrosis factor α reversibly diminished Wnt5a expression and secretion, respectively. Wnt5a decreased gene expression of differentiation markers and mineralization in cultured chondrocytes and reduced alkaline phosphatase activity in Achilles tendon enthesis (-14%) and osteocalcin protein levels released by ankle explants (-36%). On the contrary, Wnt5a stimulated ossification markers' expression in cultured osteoblasts and increased the bone volume of the tibial plateau of the cultured explants (+19%). In conclusion, our results suggest that Wnt5a is expressed locally in the joints of patients with SpA. Wnt5a appears more associated with ossification than with inflammation and tends to inhibit mineralization in chondrocytes and enthesis, whereas it seems to favor the ossification process in osteoblasts and bone. Further studies are needed to decipher the opposing effects observed locally in enthesis and systemically in bone in SpA.
Collapse
Affiliation(s)
- Carole Bougault
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Université Claude Bernard-Lyon 1, Université de Lyon, UMR CNRS 5246, Villeurbanne, France.
| | - Anne Briolay
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Université Claude Bernard-Lyon 1, Université de Lyon, UMR CNRS 5246, Villeurbanne, France
| | - Marie-Astrid Boutet
- Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, INSERM, UMR957, Nantes, France
| | - Paul Pilet
- Laboratoire d'ingénierie ostéoarticulaire et dentaire, INSERM, UMRS 791, Nantes, France
| | - Séverine Delplace
- Physiopathology of Inflammatory Bone Diseases, Université du Littoral-Côte d'Opale, EA 4490, Boulogne-sur-Mer, France
| | - Benoît Le Goff
- Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, INSERM, UMR957, Nantes, France; Department of Rheumatology, Hôtel-Dieu, CHU de Nantes, Nantes, France
| | - Jérôme Guicheux
- Laboratoire d'ingénierie ostéoarticulaire et dentaire, INSERM, UMRS 791, Nantes, France; UFR Odontologie, Université de Nantes, Nantes, France; PHU4 OTONN, CHU de Nantes, Nantes, France
| | - Frédéric Blanchard
- Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, INSERM, UMR957, Nantes, France
| | - David Magne
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Université Claude Bernard-Lyon 1, Université de Lyon, UMR CNRS 5246, Villeurbanne, France
| |
Collapse
|
75
|
Hii HP, Liao MH, Chen SJ, Wu CC, Shih CC. Distinct Patterns of Wnt3a and Wnt5a Signaling Pathway in the Lung from Rats with Endotoxic Shock. PLoS One 2015. [PMID: 26218875 PMCID: PMC4517818 DOI: 10.1371/journal.pone.0134492] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Septic shock is a syndrome with severe hypotension and multiple organ dysfunction caused by an imbalance between pro-inflammatory and anti-inflammatory response. The most common risk factor of acute lung injury is severe sepsis. Patients with sepsis-related acute respiratory distress syndrome have higher mortality. Recent studies reveal regulatory roles of Wnt3a and Wnt5a signaling in inflammatory processes. Wnt3a signaling has been implicated in anti-inflammatory effects, whereas Wnt5a signaling has been postulated to have pro-inflammatory properties. However, the balance between Wnt3a and Wnt5a signaling pathway in the lung of rats with endotoxic shock has not been determined. Thus, we investigated the major components of Wnt3a and Wnt5a signaling pathway in the lung of endotoxemic rats. Male Wistar rats were intravenously infused with saline or lipopolysaccharide (LPS, 10 mg/kg). The changes of hemodynamics, biochemical variables, and arterial blood gas were examined during the experimental period. At 6 h after saline or LPS, animals were sacrificed, and lungs were obtained for analyzing superoxide production, water accumulation, histologic assessment, and protein expressions of Wnt3a and Wnt5a signaling pathway. Animals that received LPS showed circulatory failure, multiple organ dysfunction, metabolic acidosis, hyperventilation, lung edema, and high mortality. The lung from rats with endotoxic shock exhibited significant decreases in the levels of Wnt3a, Fzd1, Dsh1, phosphorylated GSK-3β at Ser9, and β-catenin. In contrast, the expressions of Wnt5a, Fzd5, and CaMKII were up-regulated in the lung of endotoxemic rats. These findings indicate the major components of Wnt3a and Wnt5a signaling in the lung are disturbed under endotoxic insult.
Collapse
Affiliation(s)
- Hiong-Ping Hii
- Department of Surgery, Chi Mei Medical Center, Tainan, R.O.C., Taiwan
| | - Mei-Hui Liao
- Department of Pharmacology, National Defense Medical Center, Taipei, R.O.C., Taiwan
| | - Shiu-Jen Chen
- Department of Nursing, Kang-Ning Junior College of Medical Care and Management, Taipei, R.O.C., Taiwan
- Department of Physiology, National Defense Medical Center, Taipei, R.O.C., Taiwan
| | - Chin-Chen Wu
- Department of Pharmacology, National Defense Medical Center, Taipei, R.O.C., Taiwan
| | - Chih-Chin Shih
- Department of Pharmacology, National Defense Medical Center, Taipei, R.O.C., Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, R.O.C., Taiwan
- * E-mail:
| |
Collapse
|
76
|
Matthijs Blankesteijn W, Hermans KCM. Wnt signaling in atherosclerosis. Eur J Pharmacol 2015; 763:122-30. [PMID: 25987418 DOI: 10.1016/j.ejphar.2015.05.023] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/01/2015] [Indexed: 02/03/2023]
Abstract
Atherosclerosis is a disease of the vascular wall that forms the basis for a large spectrum of pathologies of various organs and tissues. Although massive research efforts in the last decades have yielded valuable information about its underlying molecular mechanisms, this has not led to a translation into effective therapeutic interventions that can stop the progression or even can induce regression of atherosclerosis. This underscores the importance of investigations on the involvement of novel signaling pathways in the development and progression of this condition. In this review we focus on the role of Wnt signaling in atherosclerosis. Experimental evidence is presented that Wnt signaling is involved in many aspects of the development and progression of vascular lesions including endothelial dysfunction, macrophage activation and the proliferation and migration of vascular smooth muscle cells. Subsequently, we will discuss the role of Wnt signaling in myocardial infarction and stroke, two common pathologies resulting from the progression of atherosclerotic lesions towards an unstable phenotype. Despite the fact that the published data sometimes are ambiguous or even conflicting, a picture is emerging that an attenuation of Wnt signaling is beneficial for the cardiovascular system that is compromised by atherosclerosis.
Collapse
Affiliation(s)
- W Matthijs Blankesteijn
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
| | - Kevin C M Hermans
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| |
Collapse
|