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Liu Y, Liu A, Li X, Liao Q, Zhang W, Zhu L, Ye RD. Cryo-EM structure of monomeric CXCL12-bound CXCR4 in the active state. Cell Rep 2024; 43:114578. [PMID: 39093700 DOI: 10.1016/j.celrep.2024.114578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/17/2024] [Accepted: 07/18/2024] [Indexed: 08/04/2024] Open
Abstract
CXCR4 binding of its endogenous agonist CXCL12 leads to diverse functions, including bone marrow retention of hematopoietic progenitors and cancer metastasis. However, the structure of the CXCL12-bound CXCR4 remains unresolved despite available structures of CXCR4 in complex with antagonists. Here, we present the cryoelectron microscopy (cryo-EM) structure of the CXCL12-CXCR4-Gi complex at an overall resolution of 2.65 Å. CXCL12 forms a 1:1 stoichiometry complex with CXCR4, following the two-site model. The first 8 amino acids of mature CXCL12 are crucial for CXCR4 activation by forming polar interactions with minor sub-pocket residues in the transmembrane binding pocket. The 3.2-Å distance between V3 of CXCL12 and the "toggle switch" W6.48 marks the deepest insertion among all chemokine-receptor pairs, leading to conformational changes of CXCR4 for G protein activation. These results, combined with functional assays and computational analysis, provide the structural basis for CXCR4 activation by CXCL12.
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Affiliation(s)
- Yezhou Liu
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Aijun Liu
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China; Dongguan Songshan Lake Central Hospital, Dongguan Third People's Hospital, The Affiliated Dongguan Songshan Lake Central Hospital, Guangdong Medical University, Dongguan, Guangdong 523326, China
| | - Xinyu Li
- Warshel Institute for Computational Biology, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Qiwen Liao
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Weijia Zhang
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Lizhe Zhu
- Warshel Institute for Computational Biology, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China.
| | - Richard D Ye
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China; The Chinese University of Hong Kong, Shenzhen Futian Biomedical Innovation R&D Center, Shenzhen, Guangdong 518048, China.
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2
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Bell B, Flores-Lovon K, Cueva-Chicaña LA, Macedo R. Role of chemokine receptors in gastrointestinal mucosa. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2024; 388:20-52. [PMID: 39260937 DOI: 10.1016/bs.ircmb.2024.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/13/2024]
Abstract
Chemokine receptors are essential for the immune response in the oral and gut mucosa. The gastrointestinal mucosa is characterized by the presence of immune populations because it is susceptible to inflammatory and infectious diseases, necessitating immune surveillance. Chemokine receptors are expressed on immune cells and play a role in gastrointestinal tissue-homing, although other non-immune cells also express them for various biological functions. CCR9, CXCR3 and CXCR6 play an important role in the T cell response in inflammatory and neoplastic conditions of the gastrointestinal mucosa. However, CXCR6 could also be found in gastric cancer cells, highlighting the different roles of chemokine receptors in different pathologies. On the other hand, CCR4 and CCR8 are critical for Treg migration in gastrointestinal tissues, correlating with poor prognosis in mucosal cancers. Other chemokine receptors are also important in promoting myeloid infiltration with context-dependent roles. Further, CXCR4 and CXCR7 are also present in gastrointestinal tumor cells and are known to stimulate proliferation, migration, and invasion into other tissues, among other pro-tumorigenic functions. Determining the processes underlying mucosal immunity and creating tailored therapeutic approaches for gastrointestinal diseases requires an understanding of the complex interactions that occur between chemokine receptors and their ligands in these mucosal tissues.
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Affiliation(s)
- Brett Bell
- Albert Einstein College of Medicine, New York, NY, United States
| | - Kevin Flores-Lovon
- Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru; Grupo de Investigación en Inmunología (GII), Arequipa, Peru
| | - Luis A Cueva-Chicaña
- Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru; Grupo de Investigación en Inmunología (GII), Arequipa, Peru
| | - Rodney Macedo
- Albert Einstein College of Medicine, New York, NY, United States; Grupo de Investigación en Inmunología (GII), Arequipa, Peru; Columbia Center for Translational Immunology, Department of Medicine, Columbia University Medical Center, New York, United States.
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Plaza J, Mínguez A, Bastida G, Marqués R, Nos P, Poveda JL, Moret-Tatay I. Genetic Variants Associated with Biological Treatment Response in Inflammatory Bowel Disease: A Systematic Review. Int J Mol Sci 2024; 25:3717. [PMID: 38612528 PMCID: PMC11012229 DOI: 10.3390/ijms25073717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder of the digestive tract usually characterized by diarrhea, rectal bleeding, and abdominal pain. IBD includes Crohn's disease and ulcerative colitis as the main entities. IBD is a debilitating condition that can lead to life-threatening complications, involving possible malignancy and surgery. The available therapies aim to achieve long-term remission and prevent disease progression. Biologics are bioengineered therapeutic drugs that mainly target proteins. Although they have revolutionized the treatment of IBD, their potential therapeutic benefits are limited due to large interindividual variability in clinical response in terms of efficacy and toxicity, resulting in high rates of long-term therapeutic failure. It is therefore important to find biomarkers that provide tailor-made treatment strategies that allow for patient stratification to maximize treatment benefits and minimize adverse events. Pharmacogenetics has the potential to optimize biologics selection in IBD by identifying genetic variants, specifically single nucleotide polymorphisms (SNPs), which are the underlying factors associated with an individual's drug response. This review analyzes the current knowledge of genetic variants associated with biological agent response (infliximab, adalimumab, ustekinumab, and vedolizumab) in IBD. An online literature search in various databases was conducted. After applying the inclusion and exclusion criteria, 28 reports from the 1685 results were employed for the review. The most significant SNPs potentially useful as predictive biomarkers of treatment response are linked to immunity, cytokine production, and immunorecognition.
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Affiliation(s)
- Javier Plaza
- Inflammatory Bowel Disease Research Group, Health Research Institute La Fe (IIS La Fe), 46026 Valencia, Spain; (J.P.); (A.M.)
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, 46100 Valencia, Spain
| | - Alejandro Mínguez
- Inflammatory Bowel Disease Research Group, Health Research Institute La Fe (IIS La Fe), 46026 Valencia, Spain; (J.P.); (A.M.)
- Inflammatory Bowel Disease Unit, Gastroenterology Department, La Fe University and Polytechnic Hospital, 46026 Valencia, Spain; (G.B.); (P.N.)
| | - Guillermo Bastida
- Inflammatory Bowel Disease Unit, Gastroenterology Department, La Fe University and Polytechnic Hospital, 46026 Valencia, Spain; (G.B.); (P.N.)
| | - Remedios Marqués
- Pharmacy Department, La Fe University and Polytechnic Hospital, 46026 Valencia, Spain; (R.M.); (J.L.P.)
| | - Pilar Nos
- Inflammatory Bowel Disease Unit, Gastroenterology Department, La Fe University and Polytechnic Hospital, 46026 Valencia, Spain; (G.B.); (P.N.)
| | - Jose Luis Poveda
- Pharmacy Department, La Fe University and Polytechnic Hospital, 46026 Valencia, Spain; (R.M.); (J.L.P.)
| | - Inés Moret-Tatay
- Inflammatory Bowel Disease Research Group, Health Research Institute La Fe (IIS La Fe), 46026 Valencia, Spain; (J.P.); (A.M.)
- General Directorate of Public Health, Council of Healthcare, 46021 Valencia, Spain
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4
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Zhang M, Liu Y, Chen J, Chen L, Zhang L, Chen X, Hao Z, Liang C. Targeting CXCL12/CXCR4 Signaling with AMD3100 Might Selectively Suppress CXCR4+ T-Cell Chemotaxis Leading to the Alleviation of Chronic Prostatitis. J Inflamm Res 2022; 15:2551-2566. [PMID: 35479835 PMCID: PMC9037856 DOI: 10.2147/jir.s352336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 04/13/2022] [Indexed: 11/23/2022] Open
Abstract
Background Chronic nonbacterial prostatitis (CNP) has a high incidence, low cure rate, and unclear pathogenesis. Here, we aimed to systematically identify effective diagnostic and therapeutic targets for CNP. Methods Prostate tissues were obtained from established mouse models and negative controls and were used for mRNA array sequencing and immunohistochemistry (IHC) staining. Predominant pathways were identified based on pathway enrichment analysis and pharmaceutical experiments. We also investigated the functional role of CXCL12 on CP, a critical factor belonging to the predominant chemotaxis pathway, and employed IHC staining to explore the influence of the CXCL12/CXCR4 axis on the activation of the NF-κB, AKT, and STAT3 signaling pathways. Serum samples derived from both CNP cases and healthy controls were used to determine the secretion level of CXCL12. Results By employing mRNA array sequencing and immunohistochemistry, we found that CXCR4, CXCL12, CD44, and OFLM4 were highly expressed in the infiltrated inflammatory T cells of the prostate tissues generated from CNP mice, while they were rarely expressed on the epithelial cells. Based on the pathway enrichment results, we applied pathway inhibitors to suppress the activity of these classic pathways. We found that targeting the CXCL12/CXCR4 axis with its specific antagonist AMD3100 remarkably alleviated inflammatory infiltration of the prostate in CNP models. Similar results were obtained when we replaced AMD3100 with adenovirus-associated virus (AAV)-shCxcl12. To clarify the potential mechanisms of how the CXCL12/CXCR4 axis influences the pathogenesis of CNP, we tested the classical downstream pathways. The results suggested that p-Akt, p-STAT3, and p-NF-κB were more highly expressed on the inflammatory cells of the prostate derived from the CNP model and were partly suppressed after applying AMD3100 or delivering AAV-shCxcl12, indicating that the CXCL12/CXCR4 axis potentially functioned through AKT/NF-κB and STAT3 signaling to influence the pathogenesis of CNP. Conclusion Our study provides potential diagnostic biomarkers and therapeutic targets for CNP.
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Affiliation(s)
- Meng Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
| | - Yi Liu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
| | - Jing Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
| | - Lei Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
| | - Li Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
| | - Xianguo Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
| | - Zongyao Hao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Correspondence: Zongyao Hao; Chaozhao Liang, Department of Urology, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Shushan District, Hefei City, 230022, Anhui, People’s Republic of China, Tel/Fax +86 55162923095, Email ;
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Institute of Urology, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, 230022, Anhui, People’s Republic of China
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Li D, Li Q. MicroRNA-200b-3p restrains gastric cancer cell proliferation, migration, and invasion via C-X-C motif chemokine ligand 12/CXC chemokine receptor 7 axis. Bioengineered 2022; 13:6509-6520. [PMID: 35226830 PMCID: PMC8974025 DOI: 10.1080/21655979.2022.2034585] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
This study was conducted to investigate the impact of microRNA (miR)-200b-3p on viability, migration, and invasion of gastric cancer (GC) cells and its mechanism. Quantitative real-time PCR (qRT-PCR) was conducted to measure miR-200b-3p expression in GC tissues and cells; besides, the relationship between miR-200b-3p expression and overall survival time (OS) was analyzed with OncomiR database; cell counting kit-8 (CCK-8), colony formation assay, flow cytometry, scratch healing assay, and Transwell assay were performed to detect the proliferation, cell cycle progression, migration, and invasion of GC cells; a lung metastasis model in nude mice was used to examine the effect of miR-200b-3p on the metastasis of GC cells in vivo; the interplay between miR-200b-3p and C-X-C motif chemokine ligand 12 (CXCL12) mRNA 3’ UTR was predicted by bioinformatics and verified with a dual-luciferase reporter gene assay; besides, the expression of CXCL12 and CXC chemokine receptor 7 (CXCR7) was probed by Western blot. It was found that miR-200b-3p expression was down-regulated in GC tissues, which was remarkably associated with the lymph node metastasis and decrease of differentiation of GC; transfection with miR-200b-3p mimics restrained the growth, migration, and invasion of GC cells in vitro, induced cell cycle arrest, and inhibited CXCL12 and CXCR7 expression levels; transfection of miR-200b-3p inhibitors worked oppositely in vitro and promoted lung metastasis in vivo. CXCL12 was confirmed as the downstream target of miR-200b-3p and was negatively modulated by miR-200b-3p. In conclusion, miR-200b-3p inhibited GC progression via regulating CXCL12/CXCR7 axis.
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Affiliation(s)
- Dinuo Li
- Department of General Gastropathy, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Qiang Li
- Department of Gastrosurgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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6
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Boucher G, Paradis A, Chabot-Roy G, Coderre L, Hillhouse EE, Bitton A, Des Rosiers C, Levings MK, Schumm LP, Lazarev M, Brant SR, Duerr R, McGovern D, Silverberg MS, Cho J, Lesage S, Rioux JD. Serum Analyte Profiles Associated With Crohn's Disease and Disease Location. Inflamm Bowel Dis 2022; 28:9-20. [PMID: 34106269 PMCID: PMC8730700 DOI: 10.1093/ibd/izab123] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Crohn's disease (CD) can affect any segment of the digestive tract but is most often localized in the ileal, ileocolonic, and colorectal regions of the intestines. It is believed that the chronic inflammation in CD is a result of an imbalance between the epithelial barrier, the immune system, and the intestinal microbiota. The aim of the study was to identify circulating markers associated with CD and/or disease location in CD patients. METHODS We tested 49 cytokines, chemokines, and growth factors in serum samples from 300 patients with CD and 300 controls. After quality control, analyte levels were tested for association with CD and disease location. RESULTS We identified 13 analytes that were higher in CD patients relative to healthy controls and that remained significant after conservative Bonferroni correction (P < 0.0015). In particular, CXCL9, CXCL1, and interleukin IL-6 had the greatest effect and were highly significant (P < 5 × 10-7). We also identified 9 analytes that were associated with disease location, with VEGF, IL-12p70, and IL-6 being elevated in patients with colorectal disease (P < 3 × 10-4). CONCLUSIONS Multiple serum analytes are elevated in CD. These implicate the involvement of multiple cell types from the immune, epithelial, and endothelial systems, suggesting that circulating analytes reflect the inflammatory processes that are ongoing within the gut. Moreover, the identification of distinct profiles according to disease location supports the existence of a biological difference between ileal and colonic CD, consistent with previous genetic and clinical observations.
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Affiliation(s)
| | - Alexandre Paradis
- Maisonneuve-Rosemont Hospital Research Center, Montréal, Québec, Canada
| | | | - Lise Coderre
- Maisonneuve-Rosemont Hospital Research Center, Montréal, Québec, Canada
| | - Erin E Hillhouse
- Maisonneuve-Rosemont Hospital Research Center, Montréal, Québec, Canada
| | - Alain Bitton
- Division of Gastroenterology, McGill University, Montreal, Québec, Canada
| | - Christine Des Rosiers
- Montreal Heart Institute, Montréal, Québec, Canada
- Département de Nutrition, Université de Montréal, Montréal, Québec, Canada
| | - Megan K Levings
- BC Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
| | - L Philip Schumm
- Department of Public Health Sciences, University of Chicago, Chicago, Illinois, USA
| | - Mark Lazarev
- The Harvey M. and Lyn P. Meyerhoff Inflammatory Bowel Disease Center, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Steve R Brant
- The Harvey M. and Lyn P. Meyerhoff Inflammatory Bowel Disease Center, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Division of Gastroenterology and Hepatology, Department of Medicine, Rutgers Robert Wood Johnson Medical School, and Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, New Brunswick and Piscataway, New Jersey, USA
| | - Richard Duerr
- Department of Medicine, University of Pittsburgh, Pennsylvania, USA
| | - Dermot McGovern
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Mark S Silverberg
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Mount Sinai Hospital Inflammatory Bowel Disease Centre, Toronto, Ontario, USA
| | - Judy Cho
- Icahn School of Medicine, Mount Sinai, New York, New York, USA
| | - Sylvie Lesage
- Maisonneuve-Rosemont Hospital Research Center, Montréal, Québec, Canada
- Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montréal, Québec, Canada
| | - John D Rioux
- Montreal Heart Institute, Montréal, Québec, Canada
- Département de Médicine, Université de Montréal, Montréal, Québec, Canada
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Nucera F, Lo Bello F, Shen SS, Ruggeri P, Coppolino I, Di Stefano A, Stellato C, Casolaro V, Hansbro PM, Adcock IM, Caramori G. Role of Atypical Chemokines and Chemokine Receptors Pathways in the Pathogenesis of COPD. Curr Med Chem 2021; 28:2577-2653. [PMID: 32819230 DOI: 10.2174/0929867327999200819145327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/11/2020] [Accepted: 06/18/2020] [Indexed: 11/22/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) represents a heightened inflammatory response in the lung generally resulting from tobacco smoking-induced recruitment and activation of inflammatory cells and/or activation of lower airway structural cells. Several mediators can modulate activation and recruitment of these cells, particularly those belonging to the chemokines (conventional and atypical) family. There is emerging evidence for complex roles of atypical chemokines and their receptors (such as high mobility group box 1 (HMGB1), antimicrobial peptides, receptor for advanced glycosylation end products (RAGE) or toll-like receptors (TLRs)) in the pathogenesis of COPD, both in the stable disease and during exacerbations. Modulators of these pathways represent potential novel therapies for COPD and many are now in preclinical development. Inhibition of only a single atypical chemokine or receptor may not block inflammatory processes because there is redundancy in this network. However, there are many animal studies that encourage studies for modulating the atypical chemokine network in COPD. Thus, few pharmaceutical companies maintain a significant interest in developing agents that target these molecules as potential antiinflammatory drugs. Antibody-based (biological) and small molecule drug (SMD)-based therapies targeting atypical chemokines and/or their receptors are mostly at the preclinical stage and their progression to clinical trials is eagerly awaited. These agents will most likely enhance our knowledge about the role of atypical chemokines in COPD pathophysiology and thereby improve COPD management.
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Affiliation(s)
- Francesco Nucera
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Federica Lo Bello
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Sj S Shen
- Faculty of Science, Centre for Inflammation, Centenary Institute, University of Technology, Ultimo, Sydney, Australia
| | - Paolo Ruggeri
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Irene Coppolino
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
| | - Antonino Di Stefano
- Division of Pneumology, Cyto- Immunopathology Laboratory of the Cardio-Respiratory System, Clinical Scientific Institutes Maugeri IRCCS, Veruno, Italy
| | - Cristiana Stellato
- Department of Medicine, Surgery and Dentistry, Salerno Medical School, University of Salerno, Salerno, Italy
| | - Vincenzo Casolaro
- Department of Medicine, Surgery and Dentistry, Salerno Medical School, University of Salerno, Salerno, Italy
| | - Phil M Hansbro
- Faculty of Science, Centre for Inflammation, Centenary Institute, University of Technology, Ultimo, Sydney, Australia
| | - Ian M Adcock
- Airway Disease Section, National Heart and Lung Institute, Imperial College, London, United Kingdom
| | - Gaetano Caramori
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, Pugliatti Square 1, 98122 Messina, Italy
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8
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Lee C, Viswanathan G, Choi I, Jassal C, Kohlmann T, Rajagopal S. Beta-Arrestins and Receptor Signaling in the Vascular Endothelium. Biomolecules 2020; 11:biom11010009. [PMID: 33374806 PMCID: PMC7824595 DOI: 10.3390/biom11010009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/13/2020] [Accepted: 12/19/2020] [Indexed: 12/17/2022] Open
Abstract
The vascular endothelium is the innermost layer of blood vessels and is a key regulator of vascular tone. Endothelial function is controlled by receptor signaling through G protein-coupled receptors, receptor tyrosine kinases and receptor serine-threonine kinases. The β-arrestins, multifunctional adapter proteins, have the potential to regulate all of these receptor families, although it is unclear as to whether they serve to integrate signaling across all of these different axes. Notably, the β-arrestins have been shown to regulate signaling by a number of receptors important in endothelial function, such as chemokine receptors and receptors for vasoactive substances such as angiotensin II, endothelin-1 and prostaglandins. β-arrestin-mediated signaling pathways have been shown to play central roles in pathways that control vasodilation, cell proliferation, migration, and immune function. At this time, the physiological impact of this signaling has not been studied in detail, but a deeper understanding of it could lead to the development of novel therapies for the treatment of vascular disease.
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Affiliation(s)
- Claudia Lee
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA;
| | - Gayathri Viswanathan
- Medical Center, Department of Medicine, Division of Cardiology, Duke University, Durham, NC 27710, USA; (G.V.); (I.C.)
| | - Issac Choi
- Medical Center, Department of Medicine, Division of Cardiology, Duke University, Durham, NC 27710, USA; (G.V.); (I.C.)
| | - Chanpreet Jassal
- College of Arts and Sciences, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA;
| | - Taylor Kohlmann
- Trinity College of Arts and Sciences, Duke University, Durham, NC 27708, USA;
| | - Sudarshan Rajagopal
- Department of Biochemistry, School of Medicine, Duke University, Durham, NC 27710, USA;
- Medical Center, Department of Medicine, Division of Cardiology, Duke University, Durham, NC 27710, USA; (G.V.); (I.C.)
- Correspondence:
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9
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Xu G, Yan X, Chen J, Guo X, Guo X, Tang Y, Shi Z. Bioinformatics Analysis of Key Candidate Genes and Pathways in Ulcerative Colitis. Biol Pharm Bull 2020; 43:1760-1766. [PMID: 33132321 DOI: 10.1248/bpb.b20-00488] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ulcerative colitis (UC) is chronic, idiopathic disease that affects the colon and the rectum and the underlying pathogenesis of UC remains to be known. The clinical drugs are mainly work based on anti-inflammation and immune system. However, most of them are expensive and have severe side effects. Therefore, identification of novel targets and exploring new drugs are urgently needed. In this study, several bioinformatics approaches were used to discover key genes and further in order to explore the pathogenesis of UC. Two microarray datasets, GSE38713 and GSE9452 were selected from NCBI-Gene Expression Omnibus database. Differentially expression genes (DEGs) were identified by using LIMMA Package of R. Then, we filtered clustered candidate genes into Gene Ontology (GO) and pathway enrichment analysis with the Database for Annotation, Visualization and Integrated Discovery (DAVID), KEGG pathway based on functions and signaling pathways with significant enrichment analysis. The protein-protein interaction (PPI) network was constructed by the Search Tool for the Retrieval of Interacting Genes/ Proteins (STRING) analysis, and visualized by Cytoscape and further analyzed by Molecular Complex Detection. Lastly, 353 up-regulated and 145 down-regulated genes were than recognized. After consulting a number of references and network degree analysis, four hub genes, namely FCGR2A, C3, INPP5A, and ACAA1 were identified, and these genes were mainly enriched in complement and coagulation cascades, mineral absorption, and Peroxisome Proliferator-Activated Receptor (PPAR) signaling pathways. In conclusion, this study would provide new clues for the pathogenesis and identification of drug targets of UC in the near future.
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Affiliation(s)
- Guangya Xu
- College of Basic Medicine & Sichuan Industrial Institute of Antibiotics, Chengdu University
| | - Xueling Yan
- College of Basic Medicine & Sichuan Industrial Institute of Antibiotics, Chengdu University
| | - Jie Chen
- Central Laboratory of Clinical Medicine, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital
| | - Xiaoheng Guo
- College of Basic Medicine & Sichuan Industrial Institute of Antibiotics, Chengdu University
| | - Xiaolan Guo
- College of Basic Medicine & Sichuan Industrial Institute of Antibiotics, Chengdu University
| | - Yong Tang
- College of Basic Medicine & Sichuan Industrial Institute of Antibiotics, Chengdu University.,Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine
| | - Zheng Shi
- College of Basic Medicine & Sichuan Industrial Institute of Antibiotics, Chengdu University
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10
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Transcriptome Based Profiling of the Immune Cell Gene Signature in Rat Experimental Colitis and Human IBD Tissue Samples. Biomolecules 2020; 10:biom10070974. [PMID: 32610492 PMCID: PMC7407160 DOI: 10.3390/biom10070974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/09/2020] [Accepted: 06/27/2020] [Indexed: 12/15/2022] Open
Abstract
Chronic intestinal inflammation is characteristic of Inflammatory Bowel Disease (IBD) that is associated with the exaggerated infiltration of immune cells. A complex interplay of inflammatory mediators and different cell types in the colon are responsible for the maintenance of tissue homeostasis and affect pathological conditions. Gene expression alteration of colon biopsies from IBD patients and an in vivo rat model of colitis were examined by RNA-Seq and QPCR, while we used in silico methods, such as Ingenuity Pathway Analysis (IPA) application and the Immune Gene Signature (ImSig) package of R, to interpret whole transcriptome data and estimate immune cell composition of colon tissues. Transcriptome profiling of in vivo colitis model revealed the most significant activation of signaling pathways responsible for leukocyte recruitment and diapedesis. We observed significant alteration of genes related to glycosylation or sensing of danger signals and pro- and anti-inflammatory cytokines and chemokines, as well as adhesion molecules. We observed the elevated expression of genes that implies the accumulation of monocytes, macrophages, neutrophils and B cells in the inflamed colon tissue. In contrast, the rate of T-cells slightly decreased in the inflamed regions. Interestingly, natural killer and plasma cells do not show enrichment upon colon inflammation. In general, whole transcriptome analysis of the in vivo experimental model of colitis with subsequent bioinformatics analysis provided a better understanding of the dynamic changes in the colon tissue of IBD patients.
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11
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Groblewska M, Litman-Zawadzka A, Mroczko B. The Role of Selected Chemokines and Their Receptors in the Development of Gliomas. Int J Mol Sci 2020; 21:ijms21103704. [PMID: 32456359 PMCID: PMC7279280 DOI: 10.3390/ijms21103704] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 02/07/2023] Open
Abstract
Among heterogeneous primary tumors of the central nervous system (CNS), gliomas are the most frequent type, with glioblastoma multiforme (GBM) characterized with the worst prognosis. In their development, certain chemokine/receptor axes play important roles and promote proliferation, survival, metastasis, and neoangiogenesis. However, little is known about the significance of atypical receptors for chemokines (ACKRs) in these tumors. The objective of the study was to present the role of chemokines and their conventional and atypical receptors in CNS tumors. Therefore, we performed a thorough search for literature concerning our investigation via the PubMed database. We describe biological functions of chemokines/chemokine receptors from various groups and their significance in carcinogenesis, cancer-related inflammation, neo-angiogenesis, tumor growth, and metastasis. Furthermore, we discuss the role of chemokines in glioma development, with particular regard to their function in the transition from low-grade to high-grade tumors and angiogenic switch. We also depict various chemokine/receptor axes, such as CXCL8-CXCR1/2, CXCL12-CXCR4, CXCL16-CXCR6, CX3CL1-CX3CR1, CCL2-CCR2, and CCL5-CCR5 of special importance in gliomas, as well as atypical chemokine receptors ACKR1-4, CCRL2, and PITPMN3. Additionally, the diagnostic significance and usefulness of the measurement of some chemokines and their receptors in the blood and cerebrospinal fluid (CSF) of glioma patients is also presented.
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Affiliation(s)
- Magdalena Groblewska
- Department of Biochemical Diagnostics, University Hospital in Białystok, 15-269 Białystok, Poland;
| | - Ala Litman-Zawadzka
- Department of Neurodegeneration Diagnostics, Medical University of Białystok, 15-269 Białystok, Poland;
| | - Barbara Mroczko
- Department of Biochemical Diagnostics, University Hospital in Białystok, 15-269 Białystok, Poland;
- Department of Neurodegeneration Diagnostics, Medical University of Białystok, 15-269 Białystok, Poland;
- Correspondence: ; Tel.: +48-85-831-8785
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12
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Wang Y, Zhang H, He H, Ai K, Yu W, Xiao X, Qin Y, Zhang L, Xiong H, Zhou G. LRCH1 suppresses migration of CD4 + T cells and refers to disease activity in ulcerative colitis. Int J Med Sci 2020; 17:599-608. [PMID: 32210709 PMCID: PMC7085219 DOI: 10.7150/ijms.39106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 01/13/2020] [Indexed: 01/05/2023] Open
Abstract
Background: Ulcerative colitis (UC) is a chronically remittent and progressive inflammatory disorder. LRCH1 is reported to be involved in the immune-regulation of several diseases. However, the exact roles of LRCH1 in UC are still obscure. Materials and Methods: LRCH1 expression was analyzed in the inflamed mucosa and peripheral blood mononuclear cells (PBMCs) from patients with UC by quantitative RT-PCR and immunohistochemistry. Peripheral blood CD4+ T cells were transfected with lentivirus-expressing LRCH1 (LV-LRCH1) or LV-sh-LRCH1, and cytokine expression was determined by using flow cytometry, quantitative RT-PCR and ELISA. Transfected CD4+ T cells were harvested to examine the capacity of chemotaxis using Transwell plate. Results: LRCH1 expression was highly decreased in colonic mucosa and PBMCs from patients with A-UC, and negatively correlated with disease activity. Up or down regulation of LRCH1 did not affect the differentiation of CD4+ T cells, and the related cytokines expression. Moreover, LRCH1 inhibited migratory capacity of CD4+ T cells toward CXCL12 by PKCα. Conclusion: LRCH1 plays an important role in the pathogenesis of UC, possibly through modulating the migration of CD4+ T cells. Therefore, targeting LRCH1 might serve as a novel therapeutic approach in the management of UC.
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Affiliation(s)
- Yibo Wang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Hairong Zhang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Heng He
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Kuankuan Ai
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Wei Yu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Xiao Xiao
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Yufen Qin
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Lingming Zhang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong 272000, P.R. China
| | - Guangxi Zhou
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272000, P.R. China
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13
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Gray CM, O’Hagan KL, Lorenzo-Redondo R, Olivier AJ, Amu S, Chigorimbo-Murefu N, Harryparsad R, Sebaa S, Maziya L, Dietrich J, Otwombe K, Martinson N, Ferrian S, Mkhize NN, Lewis DA, Lang D, Carias AM, Jaspan HB, Wilson DPK, McGilvray M, Cianci GC, Anderson MR, Dinh MH, Williamson AL, Passmore JAS, Chiodi F, Hope TJ. Impact of chemokine C-C ligand 27, foreskin anatomy and sexually transmitted infections on HIV-1 target cell availability in adolescent South African males. Mucosal Immunol 2020; 13:118-127. [PMID: 31619762 PMCID: PMC6914668 DOI: 10.1038/s41385-019-0209-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 09/04/2019] [Accepted: 09/08/2019] [Indexed: 02/04/2023]
Abstract
We compared outer and inner foreskin tissue from adolescent males undergoing medical male circumcision to better understand signals that increase HIV target cell availability in the foreskin. We measured chemokine gene expression and the impact of sexually transmitted infections (STIs) on the density and location of T and Langerhans cells. Chemokine C-C ligand 27 (CCL27) was expressed 6.94-fold higher in the inner foreskin when compared with the outer foreskin. We show that the density of CD4+CCR5+ cells/mm2 was higher in the epithelium of the inner foreskin, regardless of STI status, in parallel with higher CCL27 gene expression. In the presence of STIs, there were higher numbers of CD4+CCR5+ cells/mm2 cells in the sub-stratum of the outer and inner foreskin with concurrently higher number of CD207+ Langerhans cells (LC) in both tissues, with the latter cells being closer to the keratin surface of the outer FS in the presence of an STI. When we tested the ability of exogenous CCL27 to induce T-cell migration in foreskin tissue, CD4 + T cells were able to relocate to the inner foreskin epithelium in response. We provide novel insight into the impact CCL27 and STIs on immune and HIV-1 target cell changes in the foreskin.
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Affiliation(s)
- Clive M. Gray
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa ,0000 0004 0630 4574grid.416657.7National Health Laboratory Service, Cape Town, South Africa
| | - Kyle L. O’Hagan
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Ramon Lorenzo-Redondo
- 0000 0001 2299 3507grid.16753.36Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, IL 60011 USA
| | - Abraham J. Olivier
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa ,0000 0004 1937 1151grid.7836.aDivision of Virology, Institute of Infectious Diseases and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Sylvie Amu
- 0000 0004 1937 0626grid.4714.6Department of Microbiology, Tumor and Cell Biology at Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Nyaradzo Chigorimbo-Murefu
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Rushil Harryparsad
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Shorok Sebaa
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Lungile Maziya
- 0000 0004 0576 7753grid.414386.cDepartment of Internal Medicine, Edendale Hospital, Pietermaritzburg, South Africa
| | - Janan Dietrich
- 0000 0004 1937 1135grid.11951.3dPerinatal HIV Research Unit, SAMRC Soweto Matlosana Collaborating Centre for HIV/AIDS and TB, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Kennedy Otwombe
- 0000 0004 1937 1135grid.11951.3dPerinatal HIV Research Unit, SAMRC Soweto Matlosana Collaborating Centre for HIV/AIDS and TB, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Neil Martinson
- 0000 0004 1937 1135grid.11951.3dPerinatal HIV Research Unit, SAMRC Soweto Matlosana Collaborating Centre for HIV/AIDS and TB, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Selena Ferrian
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Nonhlanhla N. Mkhize
- National Institute for Communicable Diseases, Sandringham, Johannesburg, South Africa
| | - David A. Lewis
- 0000 0004 1936 834Xgrid.1013.3Westmead Clinical School, Faculty of Medicine and Health & Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, Australia
| | - Dirk Lang
- 0000 0004 1937 1151grid.7836.aDepartment of Human Biology, University of Cape Town, Cape Town, South Africa
| | - Ann M. Carias
- 0000 0001 2299 3507grid.16753.36Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Heather B. Jaspan
- 0000 0004 1937 1151grid.7836.aDivision of Immunology, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa ,0000 0000 9026 4165grid.240741.4Seattle Children’s Research Institute and University of Washington Departments of Pediatrics and Global Health, Seattle, WA USA
| | - Douglas P. K. Wilson
- 0000 0004 0576 7753grid.414386.cDepartment of Internal Medicine, Edendale Hospital, Pietermaritzburg, South Africa
| | | | - Gianguido C. Cianci
- 0000 0001 2299 3507grid.16753.36Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Meegan R. Anderson
- 0000 0001 2299 3507grid.16753.36Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Minh H. Dinh
- 0000 0001 2299 3507grid.16753.36Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
| | - Anna-Lise Williamson
- 0000 0004 1937 1151grid.7836.aDivision of Virology, Institute of Infectious Diseases and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Jo-Ann S. Passmore
- 0000 0004 0630 4574grid.416657.7National Health Laboratory Service, Cape Town, South Africa ,0000 0004 1937 1151grid.7836.aDivision of Virology, Institute of Infectious Diseases and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Francesca Chiodi
- 0000 0004 1937 0626grid.4714.6Department of Microbiology, Tumor and Cell Biology at Biomedicum, Karolinska Institutet, Stockholm, Sweden
| | - Thomas J. Hope
- 0000 0001 2299 3507grid.16753.36Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL USA
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14
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Mousavi A. CXCL12/CXCR4 signal transduction in diseases and its molecular approaches in targeted-therapy. Immunol Lett 2019; 217:91-115. [PMID: 31747563 DOI: 10.1016/j.imlet.2019.11.007] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/01/2019] [Accepted: 11/15/2019] [Indexed: 02/08/2023]
Abstract
Chemokines are small molecules called "chemotactic cytokines" and regulate many processes like leukocyte trafficking, homing of immune cells, maturation, cytoskeletal rearrangement, physiology, migration during development, and host immune responses. These proteins bind to their corresponding 7-membrane G-protein-coupled receptors. Chemokines and their receptors are anti-inflammatory factors in autoimmune conditions, so consider as potential targets for neutralization in such diseases. They also express by cancer cells and function as angiogenic factors, and/or survival/growth factors that enhance tumor angiogenesis and development. Among chemokines, the CXCL12/CXCR4 axis has significantly been studied in numerous cancers and autoimmune diseases. CXCL12 is a homeostatic chemokine, which is acts as an anti-inflammatory chemokine during autoimmune inflammatory responses. In cancer cells, CXCL12 acts as an angiogenic, proliferative agent and regulates tumor cell apoptosis as well. CXCR4 has a role in leukocyte chemotaxis in inflammatory situations in numerous autoimmune diseases, as well as the high levels of CXCR4, observed in different types of human cancers. These findings suggest CXCL12/CXCR4 as a potential therapeutic target for therapy of autoimmune diseases and open a new approach to targeted-therapy of cancers by neutralizing CXCL12 and CXCR4. In this paper, we reviewed the current understanding of the role of the CXCL12/CXCR4 axis in disease pathology and cancer biology, and discuss its therapeutic implications in cancer and diseases.
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15
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Foroutan P, Boshagh MA, Moloudi MR, Fakhari S, Nikkhoo B, Jalili A. Expression of CXC Chemokine Receptors in Acute Ulcerative Colitis: Initial Study from an Animal Model. Adv Biomed Res 2019; 8:56. [PMID: 31673529 PMCID: PMC6777142 DOI: 10.4103/abr.abr_55_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background: Ulcerative colitis (UC) is an inflammatory disease which is characterized by infiltration of inflammatory cells, crypt abscesses, distortion of the mucosal glands, and goblet cell depletion. The existence of neutrophil-rich inflammation in colon tissues of patients with UC is one of the most significant histological features of this disease. Nonetheless, the expression of CXCR chemokine receptors which appear as the main chemical mediators governing the migration of neutrophils into the mucosal tissue of patients with UC has not been well clarified. Materials and Methods: In this experimental study, the UC model was induced in Wistar rats by administration of 2 ml 4% acetic acid into the large colon through the rectum. Animals were anesthetized after 48 h; their colon tissue samples were isolated for macroscopic and histopathological examination. The expression of receptor1-7 of CXC chemokine was assessed by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) technique. Results: Heavy infiltration of neutrophils, coagulative necrosis, and ulcers were observed in H and E staining, which pathologically proved the UC model. qRT-PCR results indicated that CXCR2 as one of the important ELR+ chemokine family receptors bears the highest expression in the UC group (32 fold) than the control group (P ≤ 0.05). In addition, other CXCRs of this group including CXCR1 did not possess any change (P > 0.05). In contrast, RLR negative chemokine family receptors did not show any changes with the normal group. Conclusion: The results showed that CXCR2 is the only receptor for CXCL family which was remarkably upregulated in experimental UC and that CXCR2 might play a significant role in the pathogenesis of UC.
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Affiliation(s)
- Poorya Foroutan
- Cancer and Immunology Research Center, Kurdistan University of Medical Sciences, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Immunology and Hematology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mohammad Amin Boshagh
- Cancer and Immunology Research Center, Kurdistan University of Medical Sciences, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Immunology and Hematology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mohammad Raman Moloudi
- Cancer and Immunology Research Center, Kurdistan University of Medical Sciences, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Shohreh Fakhari
- Cancer and Immunology Research Center, Kurdistan University of Medical Sciences, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Bahram Nikkhoo
- Cancer and Immunology Research Center, Kurdistan University of Medical Sciences, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Ali Jalili
- Cancer and Immunology Research Center, Kurdistan University of Medical Sciences, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Immunology and Hematology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
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16
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Gaines T, Garcia F, Virani S, Liang Z, Yoon Y, Oum YH, Shim H, Mooring SR. Synthesis and evaluation of 2,5-furan, 2,5-thiophene and 3,4-thiophene-based derivatives as CXCR4 inhibitors. Eur J Med Chem 2019; 181:111562. [PMID: 31377592 DOI: 10.1016/j.ejmech.2019.111562] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 12/22/2022]
Abstract
The interaction between G-Protein coupled receptor CXCR4 and its natural ligand CXCL12 has been linked to inflammation experienced by patients with Irritable Bowel Disease (IBD). Blocking this interaction could potentially reduce inflammatory symptoms in IBD patients. In this work, several thiophene-based and furan-based compounds modeled after AMD3100 and WZ811-two known antagonists that interrupt the CXCR4-CXCL12 interaction-were synthesized and analyzed. Fifteen hit compounds were identified; these compounds exhibited effective concentrations (EC) lower than 1000 nM (AMD3100) and inhibited invasion of metastatic cells by at least 45%. Selected compounds (2d, 2j, 8a) that inhibited metastatic invasion at a higher rate than WZ811 (62%) were submitted for a carrageenan inflammation test, where both 8a and 2j reduced inflammation in the same range as WZ811 (40%) but did not reduce inflammation more than 40%. Select compounds were also modeled in silico to show key residue interactions. These preliminary results with furan-based and thiophene-based analogues contribute to the new class on heterocyclic aromatic-based CXCR4 antagonists.
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Affiliation(s)
- Theresa Gaines
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Francisco Garcia
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Saniya Virani
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Zhongxing Liang
- Department of Radiology and Imaging Science, Emory University School of Medicine, Atlanta, GA, 30322, USA; Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Younghyoun Yoon
- Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
| | - Yoon Hyeun Oum
- Department of Radiology and Imaging Science, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Hyunsuk Shim
- Department of Radiology and Imaging Science, Emory University School of Medicine, Atlanta, GA, 30322, USA; Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA
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17
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García-Cuesta EM, Santiago CA, Vallejo-Díaz J, Juarranz Y, Rodríguez-Frade JM, Mellado M. The Role of the CXCL12/CXCR4/ACKR3 Axis in Autoimmune Diseases. Front Endocrinol (Lausanne) 2019; 10:585. [PMID: 31507535 PMCID: PMC6718456 DOI: 10.3389/fendo.2019.00585] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/09/2019] [Indexed: 12/19/2022] Open
Abstract
Chemokine receptors are members of the G protein-coupled receptor superfamily. These receptors are intimately involved in cell movement, and thus play a critical role in several physiological and pathological situations that require the precise regulation of cell positioning. CXCR4 is one of the most studied chemokine receptors and is involved in many functions beyond leukocyte recruitment. During embryogenesis, it plays essential roles in vascular development, hematopoiesis, cardiogenesis, and nervous system organization. It has been also implicated in tumor progression and autoimmune diseases and, together with CD4, is one of the co-receptors used by the HIV-1 virus to infect immune cells. In contrast to other chemokine receptors that are characterized by ligand promiscuity, CXCR4 has a unique ligand-stromal cell-derived factor-1 (SDF1, CXCL12). However, this ligand also binds ACKR3, an atypical chemokine receptor that modulates CXCR4 functions and is overexpressed in multiple cancer types. The CXCL12/CXCR4/ACKR3 axis constitutes a potential therapeutic target for a wide variety of inflammatory diseases, not only by interfering with cell migration but also by modulating immune responses. Thus far, only one antagonist directed against the ligand-binding site of CXCR4, AMD3100, has demonstrated clinical relevance. Here, we review the role of this ligand and its receptors in different autoimmune diseases.
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Affiliation(s)
- Eva M. García-Cuesta
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - César A. Santiago
- Macromolecular X-Ray Crystallography Unit, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Jesús Vallejo-Díaz
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - Yasmina Juarranz
- Department Cell Biology, Research Institute Hospital 12 de Octubre (i+12), Complutense University of Madrid, Madrid, Spain
| | | | - Mario Mellado
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
- *Correspondence: Mario Mellado
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18
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Janssens R, Struyf S, Proost P. Pathological roles of the homeostatic chemokine CXCL12. Cytokine Growth Factor Rev 2018; 44:51-68. [PMID: 30396776 DOI: 10.1016/j.cytogfr.2018.10.004] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 10/19/2018] [Indexed: 12/12/2022]
Abstract
CXCL12 is a CXC chemokine that traditionally has been classified as a homeostatic chemokine. It contributes to physiological processes such as embryogenesis, hematopoiesis and angiogenesis. In contrast to these homeostatic functions, increased expression of CXCL12 in general, or of a specific CXCL12 splicing variant has been demonstrated in various pathologies. In addition to this increased or differential transcription of CXCL12, also upregulation of its receptors CXC chemokine receptor 4 (CXCR4) and atypical chemokine receptor 3 (ACKR3) contributes to the onset or progression of diseases. Moreover, posttranslational modification of CXCL12 during disease progression, through interaction with locally produced molecules or enzymes, also affects CXCL12 activity, adding further complexity. As CXCL12, CXCR4 and ACKR3 are broadly expressed, the number of pathologies wherein CXCL12 is involved is growing. In this review, the role of the CXCL12/CXCR4/ACKR3 axis will be discussed for the most prevalent pathologies. Administration of CXCL12-neutralizing antibodies or small-molecule antagonists of CXCR4 or ACKR3 delays disease onset or prevents disease progression in cancer, viral infections, inflammatory bowel diseases, rheumatoid arthritis and osteoarthritis, asthma and acute lung injury, amyotrophic lateral sclerosis and WHIM syndrome. On the other hand, CXCL12 has protective properties in Alzheimer's disease and multiple sclerosis, has a beneficial role in wound healing and has crucial homeostatic properties in general.
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Affiliation(s)
- Rik Janssens
- KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, B-3000 Leuven, Belgium
| | - Sofie Struyf
- KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, B-3000 Leuven, Belgium
| | - Paul Proost
- KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, B-3000 Leuven, Belgium.
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19
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CXCR7/CXCR4 heterodimer-induced histone demethylation: a new mechanism of colorectal tumorigenesis. Oncogene 2018; 38:1560-1575. [PMID: 30337690 DOI: 10.1038/s41388-018-0519-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 12/28/2022]
Abstract
Both chemokine receptors (CXCRs) 7 and 4 can facilitate immune cell migration and mediate a vast array of physiological and pathological events. Herein we report, in both human and animal studies, that these two CXCRs can form heterodimers in vivo and promote colorectal tumorigenesis through histone demethylation. Compared with adjacent non-neoplastic tissue, human colorectal cancer (CRC) tissue showed a significant higher expression of CXCR4 and CXCR7, which was colocalized in the cancer cell epithelium. The CXCR/CXCR4 heterodimerization was associated with increased histone demethylase JMJD2A. Villin-CXCR7-CXCR4 transgenic mice demonstrated a greater degree of exacerbated colitis and tumorigenesis than villin-CXCR7 and villin-CXCR4 mice. The CXCR7/CXCR4 heterodimerization also promoted APC mutation-driven colorectal tumorigenesis in APCMin/+/villin-CXCR7-CXCR4 mice. Further analysis showed that the CXCR7/CXCR4 heterodimer induced nuclear βarr1 recruitment and histone demethylase JMJD2A, leading to histone demethylation and resulting in transcription of inflammatory factors and oncogenes. This study uncovered a novel mechanism of colorectal tumorigenesis through the CXCR7/CXCR4 heterodimer-induced histone demethylation. Inhibition of CXCR7/CXCR4 heterodimer-induced histone demethylation could be an effective strategy for the prevention and treatment of colorectal cancer.
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Borroni EM, Savino B, Bonecchi R, Locati M. Chemokines sound the alarmin: The role of atypical chemokine in inflammation and cancer. Semin Immunol 2018; 38:63-71. [DOI: 10.1016/j.smim.2018.10.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/08/2018] [Indexed: 12/17/2022]
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Westendorp BF, Büller NV, Karpus ON, van Dop WA, Koster J, Versteeg R, Koelink PJ, Snel CY, Meisner S, Roelofs JJ, Uhmann A, Ver Loren van Themaat E, Heijmans J, Hahn H, Muncan V, Wildenberg ME, van den Brink GR. Indian Hedgehog Suppresses a Stromal Cell-Driven Intestinal Immune Response. Cell Mol Gastroenterol Hepatol 2017; 5:67-82.e1. [PMID: 29276753 PMCID: PMC5738458 DOI: 10.1016/j.jcmgh.2017.08.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 08/29/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND & AIMS Upon intestinal epithelial damage a complex wound healing response is initiated to restore epithelial integrity and defend against pathogenic invasion. Epithelium-derived Indian Hedgehog (Ihh) functions as a critical sensor in this process. Signaling occurs in a paracrine manner because the receptor for Ihh is expressed only in the mesenchyme, but the exact Hedgehog target cell has remained elusive. The aim of this study was to elucidate further the nature of this target cell in the context of intestinal inflammation. METHODS Hedgehog activity was modulated genetically in both cell type-specific and body-wide models and the resulting animals were analyzed for gene expression profiles and sensitivity for dextran sodium sulfate (DSS) colitis. To characterize the Hedgehog target cell, Gli1-CreERT2-Rosa26-ZsGreen animals were generated, which express ZsGreen in all Hedgehog-responsive cells. These cells were characterized using flow cytometry and immunofluorescence. RESULTS Loss of Indian Hedgehog from the intestinal epithelium resulted in a rapid increase in expression of inflammation-related genes, accompanied by increased influx of immune cells. Animals with epithelium-specific deletion of Ihh or lacking the Hedgehog receptor Smoothened from Hedgehog target cells were more sensitive to DSS colitis. In contrast, specific deletion of Smoothened in the myeloid compartment did not alter the response to DSS. This suggests that Hedgehog signaling does not repress intestinal immunity through an effect on myeloid cells. Indeed, we found that Hedgehog-responsive cells expressed gp38, smooth muscle actin, and desmin, indicating a fibroblastic nature. Ihh signaling inhibited expression of C-X-C motif chemokine ligand 12 (CXCL12) in fibroblasts in vitro and in vivo, thereby impairing the recruitment of immune cells. CONCLUSIONS We show that epithelium-derived Indian Hedgehog signals exclusively to fibroblasts in the intestine. Loss of Ihh leads to a rapid immune response with up-regulation of fibroblast-derived CXCL12, and migration of immune cells into the lamina propria.
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Key Words
- CXCL, C-X-C motif chemokine ligand
- CXCL12
- CXCR, C-X-C motif chemokine receptor
- DMEM, Dulbecco's modified Eagle medium
- DSS, dextran sodium sulfate
- FCS, fetal calf serum
- Gli, glioma-associated oncogene proteins
- Hedgehog
- Hhip, Hedgehog interacting protein
- IBD, inflammatory bowel disease
- IL, interleukin
- Ihh+/+, Villin-CreERT2-ZsGreen-Ihh+/+
- Ihh, Indian Hedgehog
- IhhΔ, Villin-CreERT2-ZsGreen-Ihhfl/fl
- Inflammation
- Intestine
- MPO, myeloperoxidase
- PBT, PBS/BSA/Triton
- Ptch1, Patched1
- RT-PCR, reverse-transcription polymerase chain reaction
- Smo, Smoothened
- Stroma
- α-SMA, α smooth muscle actin
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Affiliation(s)
- B. Florien Westendorp
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Nikè V.J.A. Büller
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Olga N. Karpus
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Willemijn A. van Dop
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Jan Koster
- Department of Oncogenomics and Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands
| | - Rogier Versteeg
- Department of Oncogenomics and Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands
| | - Pim J. Koelink
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Clinton Y. Snel
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Sander Meisner
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | | | - Anja Uhmann
- Institute of Human Genetics, Georg August University of Göttingen, Göttingen, Germany
| | | | - Jarom Heijmans
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Heidi Hahn
- Institute of Human Genetics, Georg August University of Göttingen, Göttingen, Germany
| | - Vanesa Muncan
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Manon E. Wildenberg
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
| | - Gijs R. van den Brink
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, The Netherlands
- GlaxoSmithKline, Medicines Research Center, Stevenage, United Kingdom
- Correspondence Address correspondence to: Gijs R. van den Brink, MD, PhD, Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Academic Medical Center, Meibergdreef 69-71, 1105 BK, Amsterdam, The Netherlands. fax: (020) 5669190.Tytgat Institute for Liver and Intestinal ResearchDepartment of Gastroenterology and HepatologyAcademic Medical CenterMeibergdreef 69-71, 1105 BKAmsterdamThe Netherlands
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Bonecchi R, Graham GJ. Atypical Chemokine Receptors and Their Roles in the Resolution of the Inflammatory Response. Front Immunol 2016; 7:224. [PMID: 27375622 PMCID: PMC4901034 DOI: 10.3389/fimmu.2016.00224] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 05/25/2016] [Indexed: 11/13/2022] Open
Abstract
Chemokines and their receptors are key mediators of the inflammatory process regulating leukocyte extravasation and directional migration into inflamed and infected tissues. The control of chemokine availability within inflamed tissues is necessary to attain a resolving environment and when this fails chronic inflammation ensues. Accordingly, vertebrates have adopted a number of mechanisms for removing chemokines from inflamed sites to help precipitate resolution. Over the past 15 years, it has become apparent that essential players in this process are the members of the atypical chemokine receptor (ACKR) family. Broadly speaking, this family is expressed on stromal cell types and scavenges chemokines to either limit their spatial availability or to remove them from in vivo sites. Here, we provide a brief review of these ACKRs and discuss their involvement in the resolution of inflammatory responses and the therapeutic implications of our current knowledge.
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Affiliation(s)
- Raffaella Bonecchi
- Humanitas Clinical and Research Center, Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
| | - Gerard J Graham
- Chemokine Research Group, Institute of Infection, Immunity and Inflammation, University of Glasgow , Glasgow , UK
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Haldipur P, Gillies GS, Janson OK, Chizhikov VV, Mithal DS, Miller RJ, Millen KJ. Foxc1 dependent mesenchymal signalling drives embryonic cerebellar growth. eLife 2014; 3. [PMID: 25513817 PMCID: PMC4281880 DOI: 10.7554/elife.03962] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 12/16/2014] [Indexed: 01/02/2023] Open
Abstract
Loss of Foxc1 is associated with Dandy-Walker malformation, the most common human cerebellar malformation characterized by cerebellar hypoplasia and an enlarged posterior fossa and fourth ventricle. Although expressed in the mouse posterior fossa mesenchyme, loss of Foxc1 non-autonomously induces a rapid and devastating decrease in embryonic cerebellar ventricular zone radial glial proliferation and concurrent increase in cerebellar neuronal differentiation. Subsequent migration of cerebellar neurons is disrupted, associated with disordered radial glial morphology. In vitro, SDF1α, a direct Foxc1 target also expressed in the head mesenchyme, acts as a cerebellar radial glial mitogen and a chemoattractant for nascent Purkinje cells. Its receptor, Cxcr4, is expressed in cerebellar radial glial cells and conditional Cxcr4 ablation with Nes-Cre mimics the Foxc1-/- cerebellar phenotype. SDF1α also rescues the Foxc1-/- phenotype. Our data emphasizes that the head mesenchyme exerts a considerable influence on early embryonic brain development and its disruption contributes to neurodevelopmental disorders in humans.
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Affiliation(s)
- Parthiv Haldipur
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, United States
| | - Gwendolyn S Gillies
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, United States
| | - Olivia K Janson
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, United States
| | - Victor V Chizhikov
- Department of Anatomy and Neurobiology, University of Tennessee Health Sciences Center, Memphis, United States
| | - Divakar S Mithal
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University, Chicago, United States
| | - Richard J Miller
- Department of Molecular Pharmacology and Biological Chemistry, Northwestern University, Chicago, United States
| | - Kathleen J Millen
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, United States
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Huang Z, Shi T, Zhou Q, Shi S, Zhao R, Shi H, Dong L, Zhang C, Zeng K, Chen J, Zhang J. miR-141 Regulates colonic leukocytic trafficking by targeting CXCL12β during murine colitis and human Crohn's disease. Gut 2014; 63:1247-57. [PMID: 24000293 DOI: 10.1136/gutjnl-2012-304213] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Emerging evidence suggests that microRNA (miRNA)-mediated gene regulation influences a variety of autoimmune disease processes, including Crohn's disease (CD), but the biological function of miRNAs in CD remains unclear. We examine miRNA level in colon tissues and study the potential functions of miRNAs that regulate pathological genes during the inflammation process. DESIGN miRNA levels were assayed in the inflamed colon of 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced and IL-10 knockout (KO) chronic colitis mice and CD patients by microarray or qRT-PCR. The influence of differently expressed miR-141 on its putative target genes, CXCL12β, and leukocyte migration was investigated in colonic epithelia cells, colitis models and CD patients. The role of miR-141 was further studied in the experimental colitis mice by intracolonic administration of miR-141 precursors or inhibitors. RESULTS An inverse correlation between miR-141 and CXCL12β/total-CXCL12 was observed predominantly in the epithelial cells of the inflamed colons from colitic mice and CD patients. Further study demonstrated that miR-141 directly regulated CXCL12β expression and CXCL12β-mediated leukocyte migration. Upregulation or downregulation of miR-141 in the TNBS-induced or IL-10 KO colitic colon regulated leukocyte infiltration and alleviated or aggravated experimental colitis, respectively. Additionally, colonic overexpression of CXCL12β abolished the therapeutic effect of miR-141 in TNBS-induced colitis. CONCLUSIONS This study showed that the pathway of miR-141 targeting CXCL12β is a possible mechanism underlying inflammatory cell trafficking during colonic inflammation process. Inhibiting colonic CXCL12β expression and blocking colonic immune cell recruitment by using miRNA precursors represents a promising approach that may be valuable for CD treatment.
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Affiliation(s)
- Zhen Huang
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Tongguo Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Qian Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Song Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Ran Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Hao Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Lei Dong
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Chenyu Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Ke Zeng
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Jiangning Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, China
| | - Junfeng Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
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Melo RDCC, Longhini AL, Bigarella CL, Baratti MO, Traina F, Favaro P, de Melo Campos P, Saad STO. CXCR7 is highly expressed in acute lymphoblastic leukemia and potentiates CXCR4 response to CXCL12. PLoS One 2014; 9:e85926. [PMID: 24497931 PMCID: PMC3908922 DOI: 10.1371/journal.pone.0085926] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 12/04/2013] [Indexed: 02/07/2023] Open
Abstract
Recently, a novel CXCL12-binding receptor, has been identified. This CXCL12-binding receptor commonly known as CXCR7 (CXC chemokine receptor 7), has lately, based on a novel nomenclature, has received the name ACKR3 (atypical chemokine receptor 3). In this study, we aimed to investigate the expression of CXCR7 in leukemic cells, as well as its participation in CXCL12 response. Interesting, we clearly demonstrated that CXCR7 is highly expressed in acute lymphoid leukemic cells compared with myeloid or normal hematopoietic cells and that CXCR7 contributed to T-acute lymphoid leukemic cell migration induced by CXCL12. Moreover, we showed that the cellular location of CXCR7 varied among T-lymphoid cells and this finding may be related to their migration capacity. Finally, we hypothesized that CXCR7 potentiates CXCR4 response and may contribute to the maintenance of leukemia by initiating cell recruitment to bone marrow niches that were once occupied by normal hematopoietic stem cells.
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Affiliation(s)
| | - Ana Leda Longhini
- Centro de Hematologia e Hemoterapia, Universidade de Campinas, Campinas, São Paulo, Brasil
| | | | - Mariana Ozello Baratti
- Centro de Hematologia e Hemoterapia, Universidade de Campinas, Campinas, São Paulo, Brasil
| | - Fabiola Traina
- Centro de Hematologia e Hemoterapia, Universidade de Campinas, Campinas, São Paulo, Brasil
| | - Patrícia Favaro
- Centro de Hematologia e Hemoterapia, Universidade de Campinas, Campinas, São Paulo, Brasil
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, São Paulo, Brasil
| | - Paula de Melo Campos
- Centro de Hematologia e Hemoterapia, Universidade de Campinas, Campinas, São Paulo, Brasil
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Chen EJH, Shaffer MH, Williamson EK, Huang Y, Burkhardt JK. Ezrin and moesin are required for efficient T cell adhesion and homing to lymphoid organs. PLoS One 2013; 8:e52368. [PMID: 23468835 PMCID: PMC3585410 DOI: 10.1371/journal.pone.0052368] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 11/12/2012] [Indexed: 01/13/2023] Open
Abstract
T cell trafficking between the blood and lymphoid organs is a complex, multistep process that requires several highly dynamic and coordinated changes in cyto-architecture. Members of the ezrin, radixin and moesin (ERM) family of actin-binding proteins have been implicated in several aspects of this process, but studies have yielded conflicting results. Using mice with a conditional deletion of ezrin in CD4+ cells and moesin-specific siRNA, we generated T cells lacking ERM proteins, and investigated the effect on specific events required for T cell trafficking. ERM-deficient T cells migrated normally in multiple in vitro and in vivo assays, and could undergo efficient diapedesis in vitro. However, these cells were impaired in their ability to adhere to the β1 integrin ligand fibronectin, and to polarize appropriately in response to fibronectin and VCAM-1 binding. This defect was specific for β1 integrins, as adhesion and polarization in response to ICAM-1 were normal. In vivo, ERM-deficient T cells showed defects in homing to lymphoid organs. Taken together, these results show that ERM proteins are largely dispensable for T cell chemotaxis, but are important for β1 integrin function and homing to lymphoid organs.
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Affiliation(s)
- Emily J. H. Chen
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Meredith H. Shaffer
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Edward K. Williamson
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Yanping Huang
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Janis K. Burkhardt
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia and the Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Werner L, Guzner-Gur H, Dotan I. Involvement of CXCR4/CXCR7/CXCL12 Interactions in Inflammatory bowel disease. Theranostics 2013; 3:40-6. [PMID: 23382785 PMCID: PMC3563080 DOI: 10.7150/thno.5135] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 11/25/2012] [Indexed: 11/05/2022] Open
Abstract
Directional movement of cells in the human body is orchestrated via chemokines. This migration was initially identified in pathological and immunological processes but quickly extended to homeostatic cell trafficking. One such chemokine is the ubiquitous CXCL12 (initially called SDF1-α) which signals via the chemokine receptors CXCR4 and CXCR7. In the last decade CXCL12 was recognized to participate not only in embryonic development and homeostatic maintenance, but also in progression of inflammation. A role for CXCL12 and its receptors CXCR4 and CXCR7 in inflammatory bowel diseases was recently shown. The current review discusses up to date knowledge of CXCL12 in inflammation, focusing on the involvement of CXCL12 and its receptors, CXCR4 and CXCR7, in inflammatory bowel diseases.
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Sánchez-Martín L, Sánchez-Mateos P, Cabañas C. CXCR7 impact on CXCL12 biology and disease. Trends Mol Med 2012; 19:12-22. [PMID: 23153575 DOI: 10.1016/j.molmed.2012.10.004] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 09/20/2012] [Accepted: 10/11/2012] [Indexed: 12/14/2022]
Abstract
It is known that the chemokine receptor CXCR7 (RDC1) can be engaged by both chemokines CXCL12 (SDF-1) and CXCL11 (I-TAC), but the exact expression pattern and function of CXCR7 is controversial. CXCR7 expression seems to be enhanced during pathological inflammation and tumor development, and emerging data suggest this receptor is an attractive therapeutic target for autoimmune diseases and cancer. CXCR7/CXCR4 heterodimerization, β-arrestin-mediated signaling, and modulation of CXCL12 responsiveness by CXCR7 suggest that the monogamous CXCR4/CXCL12 signaling axis is an oversimplified model that needs to be revisited. Consequently, research into CXCR7 biology is of great interest and further studies are warranted. This review summarizes recent findings about the CXCR7 receptor and analyses its impact on understanding the roles of CXCL12 biology in health and disease.
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Affiliation(s)
- Lorena Sánchez-Martín
- Departamento de Biología Celular e Inmunología, Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid 28049, Spain.
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Humpert ML, Tzouros M, Thelen S, Bignon A, Levoye A, Arenzana-Seisdedos F, Balabanian K, Bachelerie F, Langen H, Thelen M. Complementary methods provide evidence for the expression of CXCR7 on human B cells. Proteomics 2012; 12:1938-48. [DOI: 10.1002/pmic.201100581] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Manuel Tzouros
- F. Hoffmann-La Roche Ltd,; TRS - CCC Proteins and Metabolites,; Functional and Pathway Proteomics; Basel Switzerland
| | - Sylvia Thelen
- Insitute for Research in Biomedicine; Bellinzona Switzerland
| | - Alexandre Bignon
- Laboratoire Cytokines,; Chemokines and Immunopathology,; Univ. Paris-Sud; Clamart France
- INSERM,; Laboratory of Excellence in Research on Medication and Innovative Therapeutics (LERMIT); Clamart France
| | - Angélique Levoye
- Department of Virology, INSERM U819 & Laboratory of Viral Pathogenesis,; Institut Pasteur; Paris France
| | | | - Karl Balabanian
- Laboratoire Cytokines,; Chemokines and Immunopathology,; Univ. Paris-Sud; Clamart France
- INSERM,; Laboratory of Excellence in Research on Medication and Innovative Therapeutics (LERMIT); Clamart France
| | - Françoise Bachelerie
- Department of Virology, INSERM U819 & Laboratory of Viral Pathogenesis,; Institut Pasteur; Paris France
| | - Hanno Langen
- F. Hoffmann-La Roche Ltd,; TRS - CCC Proteins and Metabolites,; Functional and Pathway Proteomics; Basel Switzerland
| | - Marcus Thelen
- Insitute for Research in Biomedicine; Bellinzona Switzerland
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