201
|
Keefer MC, Zheng B, Rosenberg AF, Kobie JJ. Increased Steady-State Memory B Cell Subsets Among High-Risk Participants in an HIV Vaccine Trial. AIDS Res Hum Retroviruses 2017; 32:1143-1148. [PMID: 27612555 DOI: 10.1089/aid.2016.0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The success of an HIV vaccine will require induction of a protective immune response in the most at-risk populations. The increased incidence of HIV infection in high-risk populations is assumed to be primarily the result of more frequent exposure to the virus or a greater inoculum of the virus; however, underlying variations in immune homeostasis may also contribute to HIV susceptibility and potentially impact vaccine responses and those required for protection. As an effective humoral immune response is likely to be a critical component of a protective HIV vaccine, we evaluated the steady-state phenotypic profile of peripheral blood B cells by flow cytometry from participants in the HIV Vaccine Trials Network (HVTN) 203 Phase 2a HIV vaccine trial considered to be at higher risk and lower risk for HIV acquisition. Overall, high-risk participants exhibited increased frequency of unswitched IgM memory and activated switched IgD-CD95+ memory B cells than low-risk participants. Most (93%) of the high-risk male participants were men who have sex with men who engaged in high-risk sexual behavior. High-risk males had a significantly increased frequency of CXCR3+ IgD-CD95+ B cells than low-risk males. These results suggest that high-risk populations have altered B cell homeostasis. The increased frequency of activated and memory B cells may suggest increased immune activation in high-risk populations, which may contribute to possible differential responses to HIV vaccine strategies.
Collapse
Affiliation(s)
- Michael C. Keefer
- Infectious Diseases Division, Department of Medicine, University of Rochester, Rochester, New York
| | - Bo Zheng
- Infectious Diseases Division, Department of Medicine, University of Rochester, Rochester, New York
| | - Alexander F. Rosenberg
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, University of Rochester, Rochester, New York
| | - James J. Kobie
- Infectious Diseases Division, Department of Medicine, University of Rochester, Rochester, New York
| |
Collapse
|
202
|
Gaya M, Barral P, Burbage M, Aggarwal S, Montaner B, Warren Navia A, Aid M, Tsui C, Maldonado P, Nair U, Ghneim K, Fallon PG, Sekaly RP, Barouch DH, Shalek AK, Bruckbauer A, Strid J, Batista FD. Initiation of Antiviral B Cell Immunity Relies on Innate Signals from Spatially Positioned NKT Cells. Cell 2017; 172:517-533.e20. [PMID: 29249358 PMCID: PMC5786505 DOI: 10.1016/j.cell.2017.11.036] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 09/11/2017] [Accepted: 11/20/2017] [Indexed: 11/17/2022]
Abstract
B cells constitute an essential line of defense from pathogenic infections through the generation of class-switched antibody-secreting cells (ASCs) in germinal centers. Although this process is known to be regulated by follicular helper T (TfH) cells, the mechanism by which B cells initially seed germinal center reactions remains elusive. We found that NKT cells, a population of innate-like T lymphocytes, are critical for the induction of B cell immunity upon viral infection. The positioning of NKT cells at the interfollicular areas of lymph nodes facilitates both their direct priming by resident macrophages and the localized delivery of innate signals to antigen-experienced B cells. Indeed, NKT cells secrete an early wave of IL-4 and constitute up to 70% of the total IL-4-producing cells during the initial stages of infection. Importantly, the requirement of this innate immunity arm appears to be evolutionarily conserved because early NKT and IL-4 gene signatures also positively correlate with the levels of neutralizing antibodies in Zika-virus-infected macaques. In conclusion, our data support a model wherein a pre-TfH wave of IL-4 secreted by interfollicular NKT cells triggers the seeding of germinal center cells and serves as an innate link between viral infection and B cell immunity. NKT cells promote B cell immunity upon viral infection NKT cells are primed by lymph-node-resident macrophages NKT cells produce early IL-4 wave at the follicular borders Early IL-4 wave is required for efficient seeding of germinal centers
Collapse
Affiliation(s)
- Mauro Gaya
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; The Francis Crick Institute, London NW1A 1AT, UK.
| | - Patricia Barral
- The Francis Crick Institute, London NW1A 1AT, UK; The Peter Gorer Department of Immunobiology, King's College London, London SE1 9RT, UK
| | | | | | | | - Andrew Warren Navia
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Institute for Medical Engineering & Science, MIT, Cambridge, MA 02139, USA; Broad Institute, Cambridge, MA 02142, USA
| | - Malika Aid
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Carlson Tsui
- The Francis Crick Institute, London NW1A 1AT, UK
| | | | - Usha Nair
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Khader Ghneim
- Case Western Reserve University, Cleveland, OH 44106, USA
| | - Padraic G Fallon
- Institute of Molecular Medicine, Trinity College Dublin, Dublin, Ireland
| | | | - Dan H Barouch
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Alex K Shalek
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Institute for Medical Engineering & Science, MIT, Cambridge, MA 02139, USA; Broad Institute, Cambridge, MA 02142, USA
| | | | - Jessica Strid
- Division of Immunology and Inflammation, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Facundo D Batista
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; The Francis Crick Institute, London NW1A 1AT, UK; Department of Microbiology and Immunobiology & HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
203
|
Liu H, Tian Q, Ai X, Qin Y, Cui Z, Li M, Yang J, Zhai D, Liu Y, Chen S, Meng J, Sun T, Zhou H, Yang C. Dihydroartemisinin attenuates autoimmune thyroiditis by inhibiting the CXCR3/PI3K/AKT/NF-κB signaling pathway. Oncotarget 2017; 8:115028-115040. [PMID: 29383139 PMCID: PMC5777751 DOI: 10.18632/oncotarget.22854] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 11/13/2017] [Indexed: 12/17/2022] Open
Abstract
Dihydroartemisinin (DHA) is the first generation of naturally occurring artemisinin derivatives with antimalarial activity. Recent research showed that this drug also features immunosuppressive and anti-inflammatory properties. Autoimmune thyroiditis (AIT) is a common organ-specific autoimmune disease with no available effective drug treatment. In this study, we investigated effects of DHA on AIT in vitro and in vivo. Results showed that DHA can visibly reduce antithyroglobulin antibody and thyroid peroxidase antibody levels and regulate T helper cells (Th) 1/Th2 imbalance of experimental AIT mice. DHA also dose-dependently suppressed proliferation of lymphocytes induced by lipopolysaccharide and concanavalin A. DHA inhibited binding of C-X-C chemokine ligand 10 (CXCL10) and its receptor (C–X–C motif) receptor 3 (CXCR3), thus inhibiting calcium flow. DHA can also reduce expression levels of PI3-kinase (PI3K), p-PI3K, protein kinase B (AKT), p-AKT, nuclear factor (NF)-κB/p65, and p-NF-κB/p65. In conclusion, DHA may serve as treatment drug for AIT by inhibiting the CXCR3/PI3K/AKT/NF-kB signaling pathway.
Collapse
Affiliation(s)
- Huijuan Liu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China.,College of Life Sciences, Nankai University, Tianjin, China
| | - Qin Tian
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Xiaoyu Ai
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Yuan Qin
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhanhong Cui
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Meng Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Jiahuan Yang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Denghui Zhai
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Yanrong Liu
- Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Shuang Chen
- Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Jing Meng
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China
| | - Tao Sun
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China.,Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Honggang Zhou
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China.,Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Cheng Yang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, College of Life Sciences, Nankai University, Tianjin, China.,Tianjin Key Laboratory of Molecular Drug Research, Tianjin International Joint Academy of Biomedicine, Tianjin, China
| |
Collapse
|
204
|
Tokunaga R, Zhang W, Naseem M, Puccini A, Berger MD, Soni S, McSkane M, Baba H, Lenz HJ. CXCL9, CXCL10, CXCL11/ CXCR3 axis for immune activation - A target for novel cancer therapy. Cancer Treat Rev 2017; 63:40-47. [PMID: 29207310 DOI: 10.1016/j.ctrv.2017.11.007] [Citation(s) in RCA: 738] [Impact Index Per Article: 105.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/17/2017] [Accepted: 11/18/2017] [Indexed: 02/07/2023]
Abstract
Chemokines are proteins which induce chemotaxis, promote differentiation of immune cells, and cause tissue extravasation. Given these properties, their role in anti-tumor immune response in the cancer environment is of great interest. Although immunotherapy has shown clinical benefit for some cancer patients, other patients do not respond. One of the mechanisms of resistance to checkpoint inhibitors may be chemokine signaling. The CXCL9, -10, -11/CXCR3 axis regulates immune cell migration, differentiation, and activation, leading to tumor suppression (paracrine axis). However, there are some reports that show involvements of this axis in tumor growth and metastasis (autocrine axis). Thus, a better understanding of CXCL9, -10, -11/CXCR3 axis is necessary to develop effective cancer control. In this article, we summarize recent evidence regarding CXCL9, CXCL10, CXCL11/CXCR3 axis in the immune system and discuss their potential role in cancer treatment.
Collapse
Affiliation(s)
- Ryuma Tokunaga
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Wu Zhang
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Madiha Naseem
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Alberto Puccini
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Martin D Berger
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Shivani Soni
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Michelle McSkane
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 8608556, Japan
| | - Heinz-Josef Lenz
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, 1441 Eastlake Avenue, Los Angeles, CA 90033, United States.
| |
Collapse
|
205
|
Yang L, Yang S, Lei J, Hu W, Chen R, Lin F, Xu AE. Role of chemokines and the corresponding receptors in vitiligo: A pilot study. J Dermatol 2017; 45:31-38. [PMID: 29115683 DOI: 10.1111/1346-8138.14004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 07/10/2017] [Indexed: 12/01/2022]
Abstract
To determine the levels and sources of chemokines in the serum and epidermis of vitiligo patients, we examined 80 active patients, 80 stable patients and 40 healthy controls. First, the serum levels of candidate chemokines were measured by Luminex assay, and levels of CCR5, CXCR1 and CXCR3 were measured in peripheral mononuclear cells (PMBC) by flow cytometry. Then, the local epidermis levels of elevated chemokines in vitiligo were tested by Luminex. Finally, the mRNA and protein expression levels of elevated chemokines in HaCaT cells stimulated with interferon (IFN)-γ or tumor necrosis factor (TNF)-α were tested by quantitative real-time polymerase chain reaction and Luminex. The serum levels of CCL5, CXCL8 and CXCL10 in active vitiligo were significantly elevated compared with those in stable vitiligo patients. Furthermore, the levels of CCL3 and CCL4 had weak and positive correlations with the Vitiligo Area Scoring Index. In the peripheral blood of active vitiligo patients, the percentages of CD3+ CD8+ CCR5+ and CD3+ CD8+ CXCR3+ T cells were significantly increased compared with those in stable vitiligo and healthy controls. In the epidermis of lesions, the expression levels of CCL5 and CXCL10 in active vitiligo were significantly increased. In addition, the mRNA and protein levels of CCL5, CXCL8 and CXCL10 were significantly elevated in HaCaT cells after stimulation with TNF-α or IFN-γ. The CCR5/CCL5 and CXCR3/CXCL10 axes may play an important role in the progression and maintenance of vitiligo. Moreover, keratinocytes stimulated with TNF-α and IFN-γ may be a primary source of CCL5 and CXCL10.
Collapse
Affiliation(s)
- Lingling Yang
- Dermatology, The Third People's Hospital of Hangzhou, Hangzhou, China
| | - Sailing Yang
- Dermatology, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiehao Lei
- Dermatology, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenting Hu
- Dermatology, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Rong Chen
- Dermatology, Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Fuquan Lin
- Dermatology, The Third People's Hospital of Hangzhou, Hangzhou, China
| | - Ai-E Xu
- Dermatology, The Third People's Hospital of Hangzhou, Hangzhou, China
| |
Collapse
|
206
|
Raucci R, Polo A, Budillon A, Colonna G, Costantini S. Conformational analysis of the human chemokine receptor CXCR3. Mol Immunol 2017; 92:76-86. [PMID: 29054054 DOI: 10.1016/j.molimm.2017.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/08/2017] [Accepted: 10/13/2017] [Indexed: 11/16/2022]
Abstract
In the last years, some studies showed the patho-genetic role of CXCR3 bound to its ligands in many human inflammatory diseases and cancers. Thus, the blockage of the CXCR3 interaction site to its ligands is seen as a possible therapeutic target for the treatment of cancer. The presence of flexible regions in the chemokine receptors determines their capability to develop specific mechanisms of action. We have recently focused on the features of the N-terminal region of human CXCR3 free in solution, where we demonstrate the presence of numerous conformational ensembles, dynamically stabilized by H-bonds. Since up to now no structure was experimentally determined for CXCR3, we decided to approach the study of its conformational behavior by molecular dynamics simulations, in a lipid bilayer, surrounded of water, at neutral pH and 300K. Furthermore, we modeled the CXCR3/CXCL11 complex, where CXCL11 is one of its natural ligands. The aim of this work is to have a vision as realistic as possible in dynamic terms of the biological mechanism that drives the search for the ligand, its interaction and the formation of a stable complex between CXCR3 and CXCL11. Overall, our approach has been able to describe the structural events which dynamically characterize the molecular mechanisms involved in the binding of CXCR3 to CXCL11 and the critical role exerted by its N-terminal region in "hunting" and capturing the ligand.
Collapse
Affiliation(s)
- Raffaele Raucci
- Dottorato in Biologia Computazionale, Dipartimento di Biochimica, Biofisica e Patologia generale, Università degli Studi della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Andrea Polo
- Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Napoli, Italy
| | - Alfredo Budillon
- Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Napoli, Italy
| | - Giovanni Colonna
- Centro di Informatica Medica, Azienda Ospedaliera Universitaria, Università degli Studi della Campania "Luigi Vanvitelli", Napoli, Italy
| | - Susan Costantini
- Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Napoli, Italy.
| |
Collapse
|
207
|
Wang W, Peng Y, Yang H, Bu H, Guo G, Liu D, Shu B, Tian X, Luo A, Zhang X, Gao F. Potential role of CXCL10/ CXCR3 signaling in the development of morphine tolerance in periaqueductal gray. Neuropeptides 2017; 65:120-127. [PMID: 28755808 DOI: 10.1016/j.npep.2017.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/16/2017] [Accepted: 07/23/2017] [Indexed: 11/28/2022]
Abstract
Tolerance to morphine antinociception hinders its long-term use in clinical practice. Interaction between neuron and microglia has been proved to play critical role in the mechanism of morphine tolerance, while CXCL10/CXCR3 signaling has been implicated in neuron-glia signaling and morphine analgesia. This study aims to investigate whether CXCL10/CXCR3 signaling in periaqueductal gray (PAG) contributes to the development of morphine tolerance by modulating neuron-microglia interaction. The results showed that the expressions of CXCR3 and CXCL10 were gradually increased in parallel with repeated morphine administration and activation of microglia. CXCR3 was co-localized with neuronal marker NeuN, while CXCL10 was derived from microglia. Microglia inhibitor minocycline significantly attenuated the expression of CXCL10, besides, both minocycline and CXCR3 inhibitor alleviated the development of morphine tolerance. Taken together, our study provided the evidence that CXCL10/CXCR3 signaling in PAG is involved in the development of morphine analgesic tolerance via neuron-microglia interaction.
Collapse
Affiliation(s)
- Wei Wang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Yawen Peng
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Hui Yang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Huilian Bu
- Department of Anesthesiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Genhua Guo
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Daiqiang Liu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Bin Shu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Xuebi Tian
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Ailin Luo
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China
| | - Xuming Zhang
- School of Life & Health Sciences, Aston University, Aston triangle, Birmingham B4 7ET, United Kingdom
| | - Feng Gao
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, Hubei, China.
| |
Collapse
|
208
|
Du J, Zhang X, Han J, Man K, Zhang Y, Chu ESH, Nan Y, Yu J. Pro-Inflammatory CXCR3 Impairs Mitochondrial Function in Experimental Non-Alcoholic Steatohepatitis. Theranostics 2017; 7:4192-4203. [PMID: 29158819 PMCID: PMC5695006 DOI: 10.7150/thno.21400] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/14/2017] [Indexed: 01/29/2023] Open
Abstract
Mitochondrial dysfunction plays a crucial role in the development of non-alcoholic steatohepatitis (NASH). However, the regulator of mitochondrial dysfunction in the pathogenesis of NASH is still largely unclear. CXCR3 is an essential pro-inflammatory factor in chronic liver diseases. We explored the significance of CXCR3 in regulating mitochondrial function during NASH development in animal models and cultured hepatocytes. METHODS The effects of CXCR3 on mitochondrial function were evaluated by genetic knockout or pharmacological inhibition in mouse models and in vitro. The ultrastructural changes of mitochondria were assessed by transmission electron microscopy (TEM). Hepatic levels of mitochondrial reactive oxygen species (ROS), DNA damage, membrane potential and ATP were examined. RESULTS CXCR3 ablation by genetic knockout or pharmacological inhibition in mice protected against NASH development by influencing mitochondrial function. Similarly, depletion of CXCR3 reduced steatohepatitis injury in cultured hepatocytes. TEM analysis revealed that liver mitochondrial integrity was much improved in CXCR3 knockout (CXCR3-/-) compared to wildtype (WT) mice. In agreement with this, impaired mitochondrial function was pronounced in WT mice compared to CXCR3-/- mice, evidenced by increased protein expression of dynamic-related protein-1 (DRP1) and fission-1 (FIS1) and decreased protein expression of mitofusin-1 (MFN1). Mitochondrial dysfunction was induced in AML-12 hepatocytes by methionine and choline deficient medium and in HepG2 cells by palmitic acid. The impaired mitochondrial function in both cell lines was evidenced by reduced membrane potential and ATP content, and by increased mitochondrial ROS accumulation and DNA damage. However, CXCR3 knockdown by siCXCR3 significantly diminished the mitochondrial dysfunction in both AML-12 and HepG2 hepatocytes. In addition, inhibition of CXCR3 by CXCR3 specific antagonists SCH546738 and AMG487 restored mitochondrial function and inhibited mitochondrial-dependent apoptosis in the liver of WT mice fed with methionine and choline deficient diet. CONCLUSION CXCR3 induces mitochondrial dysfunction, which contributes to the pathogenesis of steatohepatitis. Pharmacologic blockade of CXCR3 prevents mitochondrial dysfunction and restores the severity of steatohepatitis, indicating a potential clinical impact for controlling the disease.
Collapse
|
209
|
Zhao Q, Kim T, Pang J, Sun W, Yang X, Wang J, Song Y, Zhang H, Sun H, Rangan V, Deshpande S, Tang H, Cvijic ME, Westhouse R, Olah T, Xie J, Struthers M, Salter-Cid L. A novel function of CXCL10 in mediating monocyte production of proinflammatory cytokines. J Leukoc Biol 2017; 102:1271-1280. [PMID: 28899907 DOI: 10.1189/jlb.5a0717-302] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 08/18/2017] [Indexed: 11/24/2022] Open
Abstract
IFN-γ-inducible protein 10 (CXCL10), a chemokine that is abundantly secreted in response to inflammatory stimuli, has been implicated in the pathogenesis of multiple inflammatory diseases, such as inflammatory bowel disease. Whereas CXCL10 is traditionally recognized for recruiting pathogenic T cells to inflamed sites, its nonchemotactic role during inflammation remains poorly defined. In this report, we identified a novel function of CXCL10 in the regulation of the inflammatory potential of human monocytes to produce cytokines. We found that CXCL10 was necessary and sufficient for IFN-γ-primed human monocytes to induce a robust production of proinflammatory cytokines, such as IL-12 and IL-23. CXCL10-induced monocyte production of these cytokines depended on CXCR3 receptor engagement as well as on the Iκ B kinase and p38 MAPK signaling pathways. By using an innate-mediated murine colitis model, we demonstrated that anti-CXCL10 Ab treatment robustly suppressed the local production of myeloid-derived inflammatory cytokines and intestinal tissue damage. Together, our data unravel a previously unappreciated role of CXCL10 in the amplification of myeloid cell-mediated inflammatory responses. Targeting CXCL10 is therefore an attractive approach to treating inflammatory diseases that are driven by innate and adaptive immunity.
Collapse
Affiliation(s)
- Qihong Zhao
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA;
| | - Taeg Kim
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Jian Pang
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Wendy Sun
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Xiaoxia Yang
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Jinhong Wang
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Yunling Song
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Hongwei Zhang
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Huadong Sun
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Vangipuram Rangan
- Biologic Discovery California, Bristol Myers Squibb, Redwood City, California, USA
| | - Shrikant Deshpande
- Biologic Discovery California, Bristol Myers Squibb, Redwood City, California, USA
| | - Huaping Tang
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Mary Ellen Cvijic
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Richard Westhouse
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Timothy Olah
- Preclinical Candidate Optimization, Bristol Myers Squibb, Princeton, New Jersey, USA; and
| | - Jenny Xie
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Mary Struthers
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Luisa Salter-Cid
- Discovery Biology, Immuno-Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| |
Collapse
|
210
|
Meissner EG, Kohli A, Higgins J, Lee Y, Prokunina O, Wu D, Orr C, Masur H, Kottilil S. Rapid changes in peripheral lymphocyte concentrations during interferon-free treatment of chronic hepatitis C virus infection. Hepatol Commun 2017; 1:586-594. [PMID: 29202115 PMCID: PMC5703427 DOI: 10.1002/hep4.1074] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 06/28/2017] [Accepted: 06/30/2017] [Indexed: 01/26/2023] Open
Abstract
Treatment of chronic hepatitis C virus infection with direct acting antivirals results in a rapid decline in viral load and markers of hepatic inflammation, including serum CXCL10 concentration, which is followed in most cases by a sustained virologic response. Whether parallel changes of significance occur in the cellular composition of peripheral blood is relatively unknown. We hypothesized that longitudinal characterization of peripheral blood during treatment would provide insight into cellular migration and immune activation, which would have implications for understanding host immunity both before and after HCV treatment and may relate to HCV clearance. We analyzed longitudinal peripheral innate and adaptive immune cell populations by flow cytometry from 95 subjects enrolled in two direct acting antiviral clinical trials, and examined chemokine receptor expression on T-lymphocytes in 43 patients. Within 1-2 weeks of initiating treatment, significant increases were observed in the concentration of peripheral CD4+ and CD8+ T-lymphocytes, but not monocyte or natural killer cells. In tandem with these changes, the percent of both CD4+ and CD8+ T-lymphocytes with an activated phenotype (HLA-DR+ and CD38+) decreased, and T-lymphocyte surface expression of CXCR3, the chemokine receptor for CXCL10, increased. CONCLUSION Rapid changes in peripheral cellular populations occur during DAA -treatment of HCV infection, which could potentially relate to hepatic efflux of tissue lymphocytes due to altered inflammation and chemokine receptor signaling, providing critical insight into the relationship between host immunity and viral clearance during hepatitis C virus infection.
Collapse
Affiliation(s)
- Eric G. Meissner
- Division of Infectious DiseasesDepartment of Microbiology and Immunology, Medical University of South CarolinaCharlestonSC
- Critical Care Medicine DepartmentNIH Clinical CenterBethesdaMD
| | - Anita Kohli
- St. Joseph's Hospital and Medical CenterDepartment of Hepatology, Creighton University School of MedicinePhoenixAZ
| | - Jeanette Higgins
- Applied and Developmental Research DirectorateLeidos Biomedical Research, Inc., Frederick National Laboratory for Cancer ResearchFrederickMD
| | - Yu‐Jin Lee
- Laboratory of ImmunoregulationNational Institute of Allergy and Infectious Diseases, National Institutes of HealthBethesdaMD
| | - Olga Prokunina
- Laboratory of ImmunoregulationNational Institute of Allergy and Infectious Diseases, National Institutes of HealthBethesdaMD
| | - David Wu
- Laboratory of ImmunoregulationNational Institute of Allergy and Infectious Diseases, National Institutes of HealthBethesdaMD
| | - Cody Orr
- Division of Infectious DiseasesDepartment of Microbiology and Immunology, Medical University of South CarolinaCharlestonSC
| | - Henry Masur
- Critical Care Medicine DepartmentNIH Clinical CenterBethesdaMD
| | - Shyam Kottilil
- Laboratory of ImmunoregulationNational Institute of Allergy and Infectious Diseases, National Institutes of HealthBethesdaMD
- Division of Clinical Care and ResearchInstitute of Human Virology, University of MarylandBaltimoreMD
| |
Collapse
|
211
|
Jiang J, Maxion H, Champion CI, Liu G, Kelly KA. Expression of CXCR3 on Adaptive and Innate Immune Cells Contributes Oviduct Pathology throughout Chlamydia muridarum Infection. J Mucosal Immunol Res 2017; 1:104. [PMID: 29552679 PMCID: PMC5851010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
CXCR3 is a chemokine receptor expressed on a wide range of leukocytes, and it is involved in leukocyte migration throughout the blood and lymphatics. Specifically, CXCR3 is required for lymphocyte homing to the genital mucosa. When compared to wild type (WT) mice, CXCR3 deficiency (CXCR3-/-) mice infected with Chlamydia muridarum (C. muridarum) did not display impaired clearance and resolution of infection. However, they possessed significantly higher bacterial burden and lower levels of IFN-γ-producing TH1 cells. The knockouts also demonstrated a significant decrease in the level of activated conventional dendritic cells in the GT, ultimately leading to the decrease in activated TH1 cells. In addition, few activated plasmacytoid dendritic cells, which possess an inflammatory phenotype, were found in the lymph node of infected mice. This reduction in pDCs may be responsible for the decrease in neutrophils, which are acute inflammatory cells, in the CXCR3-/- mice. Due to the significantly reduced level of acute inflammation, these mice also possess a decrease in dilation and pathology in the oviduct. This demonstrates that the CXCR3-/- mice possess the ability to clear C. muridarum infections, but they do so without the increased inflammation and pathology in the GT.
Collapse
Affiliation(s)
- Janina Jiang
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave. CHS 1P-177, LA, CA 90095, USA
| | - Heather Maxion
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave. CHS 1P-177, LA, CA 90095, USA
| | - Cheryl I. Champion
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave. CHS 1P-177, LA, CA 90095, USA
| | - Guangchao Liu
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave. CHS 1P-177, LA, CA 90095, USA
| | - Kathleen A. Kelly
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave. CHS 1P-177, LA, CA 90095, USA
- California Nano Systems, University of California Los Angeles, Los Angeles, California, USA
| |
Collapse
|
212
|
Muramatsu M, Gao L, Peresie J, Balderman B, Akakura S, Gelman IH. SSeCKS/AKAP12 scaffolding functions suppress B16F10-induced peritoneal metastasis by attenuating CXCL9/10 secretion by resident fibroblasts. Oncotarget 2017; 8:70281-70298. [PMID: 29050279 PMCID: PMC5642554 DOI: 10.18632/oncotarget.20092] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/26/2017] [Indexed: 12/11/2022] Open
Abstract
SSeCKS/Gravin/AKAP12 (SSeCKS) is a kinase scaffolding protein known to suppress metastasis by attenuating tumor-intrinsic PKC- and Src-mediated signaling pathways [1]. In addition to downregulation in metastatic cells, in silico analyses identified SSeCKS downregulation in prostate or breast cancer-derived stroma, suggesting a microenvironmental cell role in controlling malignancy. Although orthotopic B16F10 and SM1WT1[BrafV600E] mouse melanoma tumors grew similarly in syngeneic WT or SSeCKS-null (KO) mice, KO hosts exhibited 5- to 10-fold higher levels of peritoneal metastasis, and this enhancement could be adoptively transferred by pre-injecting naïve WT mice with peritoneal fluid (PF), but not non-adherent peritoneal cells (PC), from naïve KO mice. B16F10 and SM1WT1 cells showed increased chemotaxis to KO-PF compared to WT-PF, corresponding to increased PF levels of multiple inflammatory mediators, including the Cxcr3 ligands, Cxcl9 and 10. Cxcr3 knockdown abrogated enhanced chemotaxis to KO-PF and peritoneal metastasis in KO hosts. Conditioned media from KO peritoneal membrane fibroblasts (PMF), but not from KO-PC, induced increased B16F10 chemotaxis over controls, which could be blocked with Cxcl10 neutralizing antibody. KO-PMF exhibited increased levels of the senescence markers, SA-β-galactosidase, p21waf1 and p16ink4a, and enhanced Cxcl10 secretion induced by inflammatory mediators, lipopolysaccharide, TNFα, IFNα and IFNγ. SSeCKS scaffolding-site mutants and small molecule kinase inhibitors were used to show that the loss of SSeCKS-regulated PKC, PKA and PI3K/Akt pathways are responsible for the enhanced Cxcl10 secretion. These data mark the first description of a role for stromal SSeCKS/AKAP12 in suppressing metastasis, specifically by attenuating signaling pathways that promote secretion of tumor chemoattractants in the peritoneum.
Collapse
Affiliation(s)
- Masashi Muramatsu
- Institute of Resource Development and Analysis, Kumamoto University, Kumamoto 860-0811, Japan
| | - Lingqiu Gao
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo 14263, NY, USA
| | - Jennifer Peresie
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo 14263, NY, USA
| | - Benjamin Balderman
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo 14263, NY, USA
| | - Shin Akakura
- Frontiers in Bioscience Research Institute in Aging and Cancer, Irvine 92618, CA, USA
| | - Irwin H Gelman
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo 14263, NY, USA
| |
Collapse
|
213
|
Li MX, Zhao YF, Qiao HX, Zhang YP, Li XJ, Ren WD, Yu P. CXCR3 knockdown protects against high glucose-induced podocyte apoptosis and inflammatory cytokine production at the onset of diabetic nephropathy. Int J Clin Exp Pathol 2017; 10:8829-8838. [PMID: 31966749 PMCID: PMC6965426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/20/2017] [Indexed: 06/10/2023]
Abstract
Chemokines and their receptors play an important role in the pathogenesis of acute and chronic diabetic nephropathy (DN). However, their expression pattern and function in glomerular podocytes have not been investigated as of yet. In the present study, we investigated whether CXCR3 could protect podocytes from high glucose-induced apoptosis and inflammatory cytokine production and explored the possible mechanism. Cell viability, cell cycle and apoptosis were detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and flow cytometry, respectively. The level of intracellular reactive oxygen species (ROS) and mitochondrial membrane potential (∆Ψm) was measured using a dichlorofluorescein diacetate (DCFH-DA) ortetrechloro-tetraethylbenzimidazol carbocyanine iodide (JC-1) fluorescent probe, respectively. Quantitative real-time PCR was used to determine the gene expression of CXCR3. Western blots were carried out for the related protein expression in podocytes, including CXCR3, Nephrin, Podocin, Bcl-2, Bax, and Caspase-3. Firstly, we found that CXCR3 expression was significantly up-regulated and cell viability was decreased in high glucose (HG)-treated mouse podocytes in a dose-dependent manner. Secondly, knockdown of CXCR3 in mouse podocytes significantly suppressed HG-induced viability decrease, cell cycle arrest, ROS generation and ∆Ψm reduction. Moreover, knockdown of CXCR3 reduced the podocytes injury in cell apoptosis and inflammation through increasing the expression of Nephrin, Podocin and Bcl-2, and decreasing the expression of Bax and Caspase-3. In conclusion, CXCR3 knockdown protected podocytes from HG-induced apoptosis and inflammation in vitro, suggesting that inhibition of CXCR3 may have a therapeutic potential in DN treatment.
Collapse
Affiliation(s)
- Ming-Xia Li
- Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical UniversityTianjin, China
- Department of Endocrinology, The First Affiliated Hospital of Hebei North UniversityHebei, China
| | - Yi-Feng Zhao
- Department of General Surgery, The First Affiliated Hospital of Hebei North UniversityHebei, China
| | - Hai-Xia Qiao
- Department of Microbiology, Hebei North UniversityHebei, China
| | - Yu-Ping Zhang
- Department of Pathophysiology, Hebei North UniversityHebei, China
| | - Xiu-Juan Li
- Department of Pathology, Hebei North UniversityHebei, China
| | - Wei-Dong Ren
- Department of Endocrinology, The First Affiliated Hospital of Hebei North UniversityHebei, China
| | - Pei Yu
- Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital & Tianjin Institute of Endocrinology, Tianjin Medical UniversityTianjin, China
| |
Collapse
|
214
|
Jiang BC, He LN, Wu XB, Shi H, Zhang WW, Zhang ZJ, Cao DL, Li CH, Gu J, Gao YJ. Promoted Interaction of C/EBPα with Demethylated Cxcr3 Gene Promoter Contributes to Neuropathic Pain in Mice. J Neurosci 2017; 37:685-700. [PMID: 28100749 DOI: 10.1523/JNEUROSCI.2262-16.2016] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 11/22/2016] [Accepted: 12/02/2016] [Indexed: 12/29/2022] Open
Abstract
DNA methylation has been implicated in the pathogenesis of chronic pain. However, the specific genes regulated by DNA methylation under neuropathic pain condition remain largely unknown. Here we investigated how chemokine receptor CXCR3 is regulated by DNA methylation and how it contributes to neuropathic pain induced by spinal nerve ligation (SNL) in mice. SNL increased Cxcr3 mRNA and protein expression in the neurons of the spinal cord. Meanwhile, the CpG (5'-cytosine-phosphate-guanine-3') island in the Cxcr3 gene promoter region was demethylated, and the expression of DNA methyltransferase 3b (DNMT3b) was decreased. SNL also increased the binding of CCAAT (cytidine-cytidine-adenosine-adenosine-thymidine)/enhancer binding protein α (C/EBPα) with Cxcr3 promoter and decreased the binding of DNMT3b with Cxcr3 promoter in the spinal cord. C/EBPα expression was increased in spinal neurons after SNL, and inhibition of C/EBPα by intrathecal small interfering RNA attenuated SNL-induced pain hypersensitivity and reduced Cxcr3 expression. Furthermore, SNL-induced mechanical allodynia and heat hyperalgesia were markedly reduced in Cxcr3-/- mice. Spinal inhibition of Cxcr3 by shRNA or CXCR3 antagonist also attenuated established neuropathic pain. Moreover, CXCL10, the ligand of CXCR3, was increased in spinal neurons and astrocytes after SNL. Superfusing spinal cord slices with CXCL10 enhanced spontaneous EPSCs and potentiated NMDA-induced and AMPA-induced currents of lamina II neurons. Finally, intrathecal injection of CXCL10 induced CXCR3-dependent pain hypersensitivity in naive mice. Collectively, our results demonstrated that CXCR3, increased by DNA demethylation and the enhanced interaction with C/EBPα, can be activated by CXCL10 to facilitate excitatory synaptic transmission and contribute to the maintenance of neuropathic pain. SIGNIFICANCE STATEMENT Peripheral nerve injury induces changes of gene expression in the spinal cord that may contribute to the pathogenesis of neuropathic pain. CXCR3 is a chemokine receptor. Whether it is involved in neuropathic pain and how it is regulated after nerve injury remain largely unknown. Our study demonstrates that spinal nerve ligation downregulates the expression of DNMT3b, which may cause demethylation of Cxcr3 gene promoter and facilitate the binding of CCAAT/enhancer binding protein α with Cxcr3 promoter and further increase CXCR3 expression in spinal neurons. The upregulated CXCR3 may contribute to neuropathic pain by facilitating central sensitization. Our study reveals an epigenetic mechanism underlying CXCR3 expression and also suggests that targeting the expression or activation of CXCR3 signaling may offer new therapeutics for neuropathic pain.
Collapse
|
215
|
Lee JH, Kim B, Jin WJ, Kim HH, Ha H, Lee ZH. Pathogenic roles of CXCL10 signaling through CXCR3 and TLR4 in macrophages and T cells: relevance for arthritis. Arthritis Res Ther 2017; 19:163. [PMID: 28724396 PMCID: PMC5518115 DOI: 10.1186/s13075-017-1353-6] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 05/30/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by uncontrolled joint inflammation and destruction of bone and cartilage. We previously reported that C-X-C motif chemokine 10 (CXCL10; also called IP-10) has important roles in joint inflammation and bone destruction in arthritis. However, the specific mechanisms by which CXCL10 regulates the recruitment of inflammatory cells and the production of osteoclastogenic cytokines in RA progression are not fully understood. METHODS Bone marrow-derived macrophages and CD4+ T cells were isolated from wild-type (WT), Cxcl10 -/-, and Cxcr3 -/- mice. CXCL10-induced migration was performed using a Boyden chamber, and CXCL10-stimulated production of osteoclastogenic cytokines was measured by quantitative real-time PCR and ELISA. Collagen antibody-induced arthritis (CAIA) was induced by administration of collagen type II antibodies and lipopolysaccharide to the mice. Clinical scores were analyzed and hind paws were collected for high-resolution micro-CT, and histomorphometry. Serum was used to assess bone turnover and levels of osteoclastogenic cytokines. RESULTS CXCL10 increased the migration of inflammatory cells through C-X-C chemokine receptor 3 (CXCR3)-mediated, but not toll-like receptor 4 (TLR4)-mediated, ERK activation. Interestingly, both receptors CXCR3 and TLR4 were simultaneously required for CXCL10-stimulated production of osteoclastogenic cytokines in CD4+ T cells. Furthermore, calcineurin-dependent NFATc1 activation was essential for CXCL10-induced RANKL expression. In vivo, F4/80+ macrophages and CD4+ T cells robustly infiltrated into synovium of WT mice with CAIA but were significantly reduced in both Cxcl10 -/- and Cxcr3 -/- mice. Serum concentrations of osteoclastogenic cytokines and bone destruction were also reduced in the knockout mice, leading to attenuated progression of arthritis. CONCLUSION These findings highlight the importance of CXCL10 signaling in the pathogenesis of RA and provide previously unidentified details of the mechanisms by which CXCL10 promotes the development of arthritis.
Collapse
Affiliation(s)
- Jong-Ho Lee
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Bongjun Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Won Jong Jin
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Hyunil Ha
- Clinical Research Division, Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, 483 Expo-Ro, Yuseong-Gu, Daejeon, 305-811, Republic of Korea.
| | - Zang Hee Lee
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea.
| |
Collapse
|
216
|
Metzemaekers M, Mortier A, Janssens R, Boff D, Vanbrabant L, Lamoen N, Van Damme J, Teixeira MM, De Meester I, Amaral FA, Proost P. Glycosaminoglycans Regulate CXCR3 Ligands at Distinct Levels: Protection against Processing by Dipeptidyl Peptidase IV/CD26 and Interference with Receptor Signaling. Int J Mol Sci 2017; 18:E1513. [PMID: 28703769 DOI: 10.3390/ijms18071513] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/03/2017] [Accepted: 07/06/2017] [Indexed: 12/22/2022] Open
Abstract
CXC chemokine ligand (CXCL)9, CXCL10 and CXCL11 direct chemotaxis of mainly T cells and NK cells through activation of their common CXC chemokine receptor (CXCR)3. They are inactivated upon NH2-terminal cleavage by dipeptidyl peptidase IV/CD26. In the present study, we found that different glycosaminoglycans (GAGs) protect the CXCR3 ligands against proteolytic processing by CD26 without directly affecting the enzymatic activity of CD26. In addition, GAGs were shown to interfere with chemokine-induced CXCR3 signaling. The observation that heparan sulfate did not, and heparin only moderately, altered CXCL10-induced T cell chemotaxis in vitro may be explained by a combination of protection against proteolytic inactivation and altered receptor interaction as observed in calcium assays. No effect of CD26 inhibition was found on CXCL10-induced chemotaxis in vitro. However, treatment of mice with the CD26 inhibitor sitagliptin resulted in an enhanced CXCL10-induced lymphocyte influx into the joint. This study reveals a dual role for GAGs in modulating the biological activity of CXCR3 ligands. GAGs protect the chemokines from proteolytic cleavage but also directly interfere with chemokine–CXCR3 signaling. These data support the hypothesis that both GAGs and CD26 affect the in vivo chemokine function.
Collapse
|
217
|
Srivastava R, Khan AA, Chilukuri S, Syed SA, Tran TT, Furness J, Bahraoui E, BenMohamed L. CXCL10/ CXCR3-Dependent Mobilization of Herpes Simplex Virus-Specific CD8 + T EM and CD8 + T RM Cells within Infected Tissues Allows Efficient Protection against Recurrent Herpesvirus Infection and Disease. J Virol 2017; 91:e00278-17. [PMID: 28468883 DOI: 10.1128/JVI.00278-17] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 04/25/2017] [Indexed: 12/22/2022] Open
Abstract
Herpes simplex virus 1 (HSV-1) establishes latency within the sensory neurons of the trigeminal ganglia (TG). HSV-specific memory CD8+ T cells play a critical role in preventing HSV-1 reactivation from TG and subsequent virus shedding in tears that trigger recurrent corneal herpetic disease. The CXC chemokine ligand 10 (CXCL10)/CXC chemokine receptor 3 (CXCR3) chemokine pathway promotes T cell immunity to many viral pathogens, but its importance in CD8+ T cell immunity to recurrent herpes has been poorly elucidated. In this study, we determined how the CXCL10/CXCR3 pathway affects TG- and cornea-resident CD8+ T cell responses to recurrent ocular herpesvirus infection and disease using a well-established murine model in which HSV-1 reactivation was induced from latently infected TG by UV-B light. Following UV-B-induced HSV-1 reactivation, a significant increase in both the number and function of HSV-specific CXCR3+ CD8+ T cells was detected in TG and corneas of protected C57BL/6 (B6) mice, but not in TG and corneas of nonprotected CXCL10-/- or CXCR3-/- deficient mice. This increase was associated with a significant reduction in both virus shedding and recurrent corneal herpetic disease. Furthermore, delivery of exogenous CXCL10 chemokine in TG of CXCL10-/- mice, using the neurotropic adeno-associated virus type 8 (AAV8) vector, boosted the number and function of effector memory CD8+ T cells (TEM) and tissue-resident memory CD8+ T cells (TRM), but not of central memory CD8+ T cells (TCM), locally within TG, and improved protection against recurrent herpesvirus infection and disease in CXCL10-/- deficient mice. These findings demonstrate that the CXCL10/CXCR3 chemokine pathway is critical in shaping CD8+ T cell immunity, locally within latently infected tissues, which protects against recurrent herpesvirus infection and disease.IMPORTANCE We determined how the CXCL10/CXCR3 pathway affects CD8+ T cell responses to recurrent ocular herpesvirus infection and disease. Using a well-established murine model, in which HSV-1 reactivation in latently infected trigeminal ganglia was induced by UV-B light, we demonstrated that lack of either CXCL10 chemokine or its CXCR3 receptor compromised the mobilization of functional CD8+ TEM and CD8+ TRM cells within latently infected trigeminal ganglia following virus reactivation. This lack of T cell mobilization was associated with an increase in recurrent ocular herpesvirus infection and disease. Inversely, augmenting the amount of CXCL10 in trigeminal ganglia of latently infected CXCL10-deficient mice significantly restored the number of local antiviral CD8+ TEM and CD8+ TRM cells associated with protection against recurrent ocular herpes. Based on these findings, a novel "prime/pull" therapeutic ocular herpes vaccine strategy is proposed and discussed.
Collapse
|
218
|
Yin ML, Song HL, Yang Y, Zheng WP, Liu T, Shen ZY. Effect of CXCR3/HO-1 genes modified bone marrow mesenchymal stem cells on small bowel transplant rejection. World J Gastroenterol 2017; 23:4016-4038. [PMID: 28652655 PMCID: PMC5473121 DOI: 10.3748/wjg.v23.i22.4016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/20/2017] [Accepted: 05/04/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate whether bone marrow mesenchymal stem cells (BMMSCs) modified with the HO-1 and CXCR3 genes can augment the inhibitory effect of BMMSCs on small bowel transplant rejection.
METHODS Lewis rat BMMSCs were cultured in vitro. Third-passage BMMSCs were transduced with the CXCR3/HO-1 genes or the HO-1 gene alone. The rats were divided into six groups and rats in the experimental group were pretreated with BMMSCs 7 d prior to small bowel transplant. Six time points (instant, 1 d, 3 d, 7 d, 10 d, and 14 d) (n = 6) were chosen for each group. Hematoxylin-eosin staining was used to observe pathologic rejection, while immunohistochemistry and Western blot were used to detect protein expression. Flow cytometry was used to detect T lymphocytes and enzyme linked immunosorbent assay was used to detect cytokines.
RESULTS The median survival time of BMMSCs from the CXCR3/HO-1 modified group (53 d) was significantly longer than that of the HO-1 modified BMMSCs group (39 d), the BMMSCs group (26 d), and the NS group (control group) (16 d) (P < 0.05). Compared with BMMSCs from the HO-1 modified BMMSCs, BMMSCs, and NS groups, rejection of the small bowel in the CXCR3/HO-1 modified group was significantly reduced, while the weight of transplant recipients was also significantly decreased (P < 0.05). Furthermore, IL-2, IL-6, IL-17, IFN-γ, and TNF-α levels were significantly decreased and the levels of IL-10 and TGF-β were significantly increased (P < 0.05).
CONCLUSION BMMSCs modified with the CXCR3 and HO-1 genes can abrogate the rejection of transplanted small bowel more effectively and significantly increase the survival time of rats that receive a small bowel transplant.
Collapse
MESH Headings
- Animals
- Apoptosis
- Cell Survival
- Cells, Cultured
- Cytokines/blood
- Graft Rejection/enzymology
- Graft Rejection/immunology
- Graft Rejection/pathology
- Graft Rejection/prevention & control
- Graft Survival
- Heme Oxygenase-1/genetics
- Heme Oxygenase-1/metabolism
- Intestine, Small/enzymology
- Intestine, Small/immunology
- Intestine, Small/pathology
- Intestine, Small/transplantation
- Male
- Mesenchymal Stem Cell Transplantation
- Mesenchymal Stem Cells/enzymology
- Mesenchymal Stem Cells/immunology
- Phenotype
- Rats, Inbred BN
- Rats, Inbred Lew
- Receptors, CXCR3/genetics
- Receptors, CXCR3/metabolism
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Time Factors
- Transfection
Collapse
|
219
|
Fujino M, Sato H, Okamura T, Uda A, Takeda S, Ahmed N, Shichino S, Shiino T, Saito Y, Watanabe S, Sugimoto C, Kuroda MJ, Ato M, Nagai Y, Izumo S, Matsushima K, Miyazawa M, Ansari AA, Villinger F, Mori K. Simian Immunodeficiency Virus Targeting of CXCR3+ CD4 + T Cells in Secondary Lymphoid Organs Is Associated with Robust CXCL10 Expression in Monocyte/Macrophage Subsets. J Virol 2017; 91:e00439-17. [PMID: 28424283 DOI: 10.1128/JVI.00439-17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/11/2017] [Indexed: 01/12/2023] Open
Abstract
Glycosylation of Env defines pathogenic properties of simian immunodeficiency virus (SIV). We previously demonstrated that pathogenic SIVmac239 and a live-attenuated, quintuple deglycosylated Env mutant (Δ5G) virus target CD4+ T cells residing in different tissues during acute infection. SIVmac239 and Δ5G preferentially infected distinct CD4+ T cells in secondary lymphoid organs (SLOs) and within the lamina propria of the small intestine, respectively (C. Sugimoto et al., J Virol 86:9323-9336, 2012, https://doi.org/10.1128/JVI.00948-12). Here, we studied the host responses relevant to SIV targeting of CXCR3+ CCR5+ CD4+ T cells in SLOs. Genome-wide transcriptome analyses revealed that Th1-polarized inflammatory responses, defined by expression of CXCR3 chemokines, were distinctly induced in the SIVmac239-infected animals. Consistent with robust expression of CXCL10, CXCR3+ T cells were depleted from blood in the SIVmac239-infected animals. We also discovered that elevation of CXCL10 expression in blood and SLOs was secondary to the induction of CD14+ CD16+ monocytes and MAC387+ macrophages, respectively. Since the significantly higher levels of SIV infection in SLOs occurred with a massive accumulation of infiltrated MAC387+ macrophages, T cells, dendritic cells (DCs), and residential macrophages near high endothelial venules, the results highlight critical roles of innate/inflammatory responses in SIVmac239 infection. Restricted infection in SLOs by Δ5G also suggests that glycosylation of Env modulates innate/inflammatory responses elicited by cells of monocyte/macrophage/DC lineages.IMPORTANCE We previously demonstrated that a pathogenic SIVmac239 virus and a live-attenuated, deglycosylated mutant Δ5G virus infected distinct CD4+ T cell subsets in SLOs and the small intestine, respectively (C. Sugimoto et al., J Virol 86:9323-9336, 2012, https://doi.org/10.1128/JVI.00948-12). Accordingly, infections with SIVmac239, but not with Δ5G, deplete CXCR3+ CCR5+ CD4+ T (Th1) cells during the primary infection, thereby compromising the cellular immune response. Thus, we hypothesized that distinct host responses are elicited by the infections with two different viruses. We found that SIVmac239 induced distinctly higher levels of inflammatory Th1 responses than Δ5G. In particular, SIVmac239 infection elicited robust expression of CXCL10, a chemokine for CXCR3+ cells, in CD14+ CD16+ monocytes and MAC387+ macrophages recently infiltrated in SLOs. In contrast, Δ5G infection elicited only modest inflammatory responses. These results suggest that the glycosylation of Env modulates the inflammatory/Th1 responses through the monocyte/macrophage subsets and elicits marked differences in SIV infection and clinical outcomes.
Collapse
|
220
|
Priyathilaka TT, Oh M, Bathige SDNK, De Zoysa M, Lee J. Two distinct CXC chemokine receptors ( CXCR3 and CXCR4) from the big-belly seahorse Hippocampus abdominalis: Molecular perspectives and immune defensive role upon pathogenic stress. Fish Shellfish Immunol 2017; 65:59-70. [PMID: 28341456 DOI: 10.1016/j.fsi.2017.03.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 03/18/2017] [Accepted: 03/18/2017] [Indexed: 06/06/2023]
Abstract
CXC chemokine receptor 3 (CXCR3) and 4 (CXCR4) are members of the seven transmembrane G protein coupled receptor family, involved in pivotal physiological functions. In this study, seahorse CXCR3 and CXCR4 (designated as HaCXCR3 and HaCXCR4) cDNA sequences were identified from the transcriptome library and subsequently molecularly characterized. HaCXCR3 and HaCXCR4 encoded 363 and 373 amino acid long polypeptides, respectively. The HaCXCR3 and HaCXCR4 deduced proteins have typical structural features of chemokine receptors, including seven transmembrane domains and a G protein coupled receptors family 1 profile with characteristic DRY motifs. Amino acid sequence comparison and phylogenetic analysis of these two CXC chemokine receptors revealed a close relationship to their corresponding teleost counterparts. Quantitative real time PCR analysis revealed that HaCXCR3 and HaCXCR4 were ubiquitously expressed in all the tested tissues, with highest expression levels in blood cells. The seahorse blood cells and kidney HaCXCR3 and HaCXCR4 mRNA expressions were differently modulated when challenged with Edwardsiella tarda, Streptococcus iniae, lipopolysaccharide, and polyinosinic:polycytidylic acid, confirming their involvement in post immune responses.
Collapse
MESH Headings
- Adjuvants, Immunologic/pharmacology
- Amino Acid Sequence
- Animals
- DNA, Complementary/genetics
- DNA, Complementary/metabolism
- Edwardsiella tarda/physiology
- Enterobacteriaceae Infections/genetics
- Enterobacteriaceae Infections/immunology
- Enterobacteriaceae Infections/microbiology
- Enterobacteriaceae Infections/veterinary
- Fish Diseases/genetics
- Fish Diseases/immunology
- Fish Diseases/microbiology
- Fish Proteins/chemistry
- Fish Proteins/genetics
- Fish Proteins/metabolism
- Immune System/drug effects
- Lipopolysaccharides/pharmacology
- Phylogeny
- Poly I-C/pharmacology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, CXCR3/chemistry
- Receptors, CXCR3/genetics
- Receptors, CXCR3/metabolism
- Receptors, CXCR4/chemistry
- Receptors, CXCR4/genetics
- Receptors, CXCR4/metabolism
- Sequence Alignment/veterinary
- Smegmamorpha
- Streptococcal Infections/genetics
- Streptococcal Infections/immunology
- Streptococcal Infections/microbiology
- Streptococcal Infections/veterinary
- Streptococcus iniae/physiology
Collapse
Affiliation(s)
- Thanthrige Thiunuwan Priyathilaka
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Minyoung Oh
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - S D N K Bathige
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Mahanama De Zoysa
- Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Jehee Lee
- Department of Marine Life Sciences, School of Marine Biomedical Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea.
| |
Collapse
|
221
|
Piovesan D, Tempany J, Di Pietro A, Baas I, Yiannis C, O'Donnell K, Chen Y, Peperzak V, Belz GT, Mackay CR, Smyth GK, Groom JR, Tarlinton DM, Good-Jacobson KL. c-Myb Regulates the T-Bet-Dependent Differentiation Program in B Cells to Coordinate Antibody Responses. Cell Rep 2017; 19:461-70. [PMID: 28423310 DOI: 10.1016/j.celrep.2017.03.060] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/24/2017] [Accepted: 03/21/2017] [Indexed: 11/22/2022] Open
Abstract
Humoral immune responses are tailored to the invading pathogen through regulation of key transcription factors and their networks. This is critical to establishing effective antibody-mediated responses, yet it is unknown how B cells integrate pathogen-induced signals to drive or suppress transcriptional programs specialized for each class of pathogen. Here, we detail the key role of the transcription factor c-Myb in regulating the T-bet-mediated anti-viral program. Deletion of c-Myb in mature B cells significantly increased serum IgG2c and CXCR3 expression by upregulating T-bet, normally suppressed during Th2-cell-mediated responses. Enhanced expression of T-bet resulted in aberrant plasma cell differentiation within the germinal center, mediated by CXCR3 expression. These findings identify a dual role for c-Myb in limiting inappropriate effector responses while coordinating plasma cell differentiation with germinal center egress. Identifying such intrinsic regulators of specialized antibody responses can assist in vaccine design and therapeutic intervention in B-cell-mediated immune disorders.
Collapse
|
222
|
Qu L, Fu K, Shimada SG, LaMotte RH. Cl - channel is required for CXCL10-induced neuronal activation and itch response in a murine model of allergic contact dermatitis. J Neurophysiol 2017; 118:619-624. [PMID: 28446581 DOI: 10.1152/jn.00187.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/14/2017] [Accepted: 04/26/2017] [Indexed: 12/21/2022] Open
Abstract
Persistent itch often accompanies allergic contact dermatitis (ACD), but the underlying mechanisms remain largely unexplored. We previously demonstrated that CXCL10/CXCR3 signaling activated a subpopulation of cutaneous primary sensory neurons and mediated itch response after contact hypersensitivity (CHS), a murine model of ACD, induced by squaric acid dibutylester. The purpose of this study was to determine the ionic mechanisms underlying CXCL10-induced neuronal activation and allergic itch. In whole cell recordings, CXCL10 triggered a current in dorsal root ganglion (DRG) neurons innervating the area of CHS. This current was modulated by intracellular Cl- and blocked by the general Cl- channel inhibitors. Moreover, increasing Ca2+ buffering capacity reduced this current. In addition, blockade of Cl- channels significantly suppressed CXCL10-induced Ca2+ response. In behavioral tests, injection of CXCL10 into CHS site exacerbated itch-related scratching behaviors. Moreover, the potentiating behavioral effects of CXCL10 were attenuated by either of two Cl- channel blockers. Thus we suggest that the Cl- channel acts as a downstream target mediating the excitatory and pruritic behavioral effects of CXCL10. Cl- channels may provide a promising therapeutic target for the treatment of allergic itch in which CXCL10/CXCR3 signaling may participate.NEW & NOTEWORTHY The ionic mechanisms underlying CXCL10-induced neuronal activation and allergic itch are largely unexplored. This study revealed that CXCL10 evoked an ionic current mainly carried by Cl- channels. We suggest that Cl- channels are likely key molecular candidates responsible for the CXCL10-evoked neuronal activation and itch-like behaviors in a murine model of allergic contact dermatitis induced by the antigen squaric acid dibutylester. Cl- channels may emerge as a promising drug target for the treatment of allergic itch in which CXCL10/CXCR3 signaling may participate.
Collapse
Affiliation(s)
- Lintao Qu
- Departments of Neurosurgery, Neurosurgery Pain Research Institute, Johns Hopkins School of Medicine, Baltimore, Maryland; and .,Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| | - Kai Fu
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| | - Steven G Shimada
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| | - Robert H LaMotte
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut
| |
Collapse
|
223
|
Jing PB, Cao DL, Li SS, Zhu M, Bai XQ, Wu XB, Gao YJ. Chemokine Receptor CXCR3 in the Spinal Cord Contributes to Chronic Itch in Mice. Neurosci Bull 2017; 34:54-63. [PMID: 28401489 DOI: 10.1007/s12264-017-0128-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/01/2017] [Indexed: 12/30/2022] Open
Abstract
Recent studies have shown that the chemokine receptor CXCR3 and its ligand CXCL10 in the dorsal root ganglion mediate itch in experimental allergic contact dermatitis (ACD). CXCR3 in the spinal cord also contributes to the maintenance of neuropathic pain. However, whether spinal CXCR3 is involved in acute or chronic itch remains unclear. Here, we report that Cxcr3 -/- mice showed normal scratching in acute itch models but reduced scratching in chronic itch models of dry skin and ACD. In contrast, both formalin-induced acute pain and complete Freund's adjuvant-induced chronic inflammatory pain were reduced in Cxcr3 -/- mice. In addition, the expression of CXCR3 and CXCL10 was increased in the spinal cord in the dry skin model induced by acetone and diethyl ether followed by water (AEW). Intrathecal injection of a CXCR3 antagonist alleviated AEW-induced itch. Furthermore, touch-elicited itch (alloknesis) after compound 48/80 or AEW treatment was suppressed in Cxcr3 -/- mice. Finally, AEW-induced astrocyte activation was inhibited in Cxcr3 -/- mice. Taken together, these data suggest that spinal CXCR3 mediates chronic itch and alloknesis, and targeting CXCR3 may provide effective treatment for chronic pruritus.
Collapse
Affiliation(s)
- Peng-Bo Jing
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - De-Li Cao
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Si-Si Li
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Meixuan Zhu
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Xue-Qiang Bai
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Xiao-Bo Wu
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China
| | - Yong-Jing Gao
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226019, China. .,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China.
| |
Collapse
|
224
|
Li J, Ge M, Lu S, Shi J, Li X, Wang M, Huang J, Shao Y, Huang Z, Zhang J, Nie N, Zheng Y. Pro-inflammatory effects of the Th1 chemokine CXCL10 in acquired aplastic anaemia. Cytokine 2017; 94:45-51. [PMID: 28411045 DOI: 10.1016/j.cyto.2017.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 11/15/2022]
Abstract
CXCL10/IFN-γ-induced protein 10 (IP-10) and its corresponding receptor CXCR3 have long been considered to be involved in the pathophysiology of type 1 T (Th1) cell-orientated autoimmune diseases. However, the exact role of CXCL10 in the pathogenesis of aplastic anaemia (AA) has not been thoroughly studied. The aim of our study was to evaluate the plasma level of CXCL10 and its effects on CD4+ T cell differentiation in AA. In our study, we found that an elevated plasma level of CXCL10 was negatively correlated with platelet, absolute neutrophil and reticulocyte counts, while it was positively correlated with the proportion of lymphocytes in white blood cells in AA patients. To confirm the pro-inflammatory effects of CXCL10 in AA, we isolated CD4+ T cells and evaluated the function of CXCL10 in CD4+ T cell differentiation. In vitro stimulation experiments further revealed the pro-inflammatory role of CXCL10 in AA, partially by promoting the secretion of interferon (IFN)-γ and IL-17. In addition, CXCL10 significantly skewed CD4+ T cell differentiation to Th1 cells and T helper 17 (Th17) cells in AA patients, while it inhibited the differentiation of type 2 T (Th2) cells only in controls. The mRNA expression of transcription factors representative of T cell differentiation was detected by RT-PCR. Consistently, our results showed that after CXCL10 treatment, the expression of T-bet and RORγt was significantly enhanced, while the expression of GATA3 was inhibited. In conclusion, our results indicated that CXCL10, a pro-inflammatory chemokine, might be involved in the abnormal immune response in AA.
Collapse
Affiliation(s)
- Junhong Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Meili Ge
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Shihong Lu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Jun Shi
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Xingxin Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Min Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Jinbo Huang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Yingqi Shao
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Zhendong Huang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Jing Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Neng Nie
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China
| | - Yizhou Zheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, PR China.
| |
Collapse
|
225
|
Abstract
T- helper 1 (Th1) cytokines and chemokines in primary biliary cirrhosis (PBC) has been investigated in several studies. The involvement of (C-X-C motif) receptor 3 (CXCR3) and its ligands in the pathogenesis of PBC was studied in autoimmune cholangitis animal models suggesting that CXCR3 chemokines contribute to the development of PBC. In humans with PBC, interferon (IFN)γ-induced protein 10 (IP-10) and chemokine (C-X-C motif) ligand 9 (MIG) expressions, and CXCR3-positive cells were present in the portal areas of diseased livers. MIG and IP-10 were positively associated with the severity of liver fibrosis. Circulating IP-10 and MIG levels, and CXCR3-expressing cells, in PBC were increased significantly compared to controls and appeared to increase with disease progression. Furthermore, a significant reduction of these chemokines in PBC patients' serum after ursodeoxycholic acid (UDCA) treatment has been shown.
Collapse
Affiliation(s)
- F Limongi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| |
Collapse
|
226
|
Abstract
Interferon (IFN)-γ-induced protein 10 (IP-10) and its receptor, chemokine (C-X-C motif) receptor (CXCR)3, appear to contribute to the pathogenesis of Sjögren's syndrome (SS). The expression of IP-10 and CXCR3 is increased, in salivary glands from SS patients, both in the ductal epithelium adjacent to lymphoid infiltrates and in lymphocytes. IFN-γ induces the production of high levels of IP-10 and monokine induced by IFN-γ (MIG) proteins from cultured SS salivary epithelial cells. Under the influence of IFN-γ, IP-10 secreted by salivary cells, recruits T helper (Th)1 lymphocytes that may be responsible for enhanced IFN-γ, which in turn stimulates a further IP-10 secretion from epithelial cells creating an amplification feedback loop and perpetuating the autoimmune process. Determination of high level of IP-10 in tears and saliva is therefore a marker of a Th1 orientated immune response. In experimental settings IP-10 antagonists can ameliorate the progression of autoimmune sialadenitis, providing a new therapeutic approach to SS. Further studies are needed to investigate whether IP-10 is a novel therapeutic target in SS in humans.
Collapse
Affiliation(s)
- I Ruffilli
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| |
Collapse
|
227
|
Abstract
Many studies have shown that chemokine (C-X-C motif) receptor (CXCR)3 (a chemokine receptor in the CXC family) and its ligand chemokines, monokine induced by interferon (IFN)-γ(MIG), IFN-γ-inducible protein 10 (IP-10) and IFN-inducible T-cell α chemoattractant (I-TAC), are strongly overexpressed in the intestinal mucosa of mice with experimental colitis, and in patients with ulcerative colitis (UC) both in lymphocytes, in macrophages and in epithelial cells. IFN-γ induces CXCR3 and its chemokines expression in epithelial colonic cells; MIG, IP-10 and I-TAC are important for the recruitment of granulocytes and mononuclear cells and thus for the maintenance of inflammation in UC. Serum IP-10 levels reflected UC disease activity, and it may be a marker for the responsiveness of patients to treatments. Recently, a phase II study suggested that an anti-IP-10 antibody, BMS-936557, is a potentially effective therapy for moderately-to-severely active UC.
Collapse
Affiliation(s)
- F Ragusa
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| |
Collapse
|
228
|
Abstract
Interferon γ-inducible protein (IP-10) chemokine is implicated in the pathogenesis of psoriatic arthritis (PsA). It was shown that chemokine (C-X-C motif) receptor (CXCR) 3 and CXCR4 were expressed by both blood-derived plasmacytoid dendritic cells (pDCs) and pDCs isolated from rheumatoid arthritis (RA) and PsA synovial fluid (SF) and that IP-10, chemokine (C-X-C motif) ligand (CXCL)-11, and CXCL-12 present in RA and PA SF stimulated chemotaxis of blood-derived pDCs. High circulating levels of IP-10 and chemokine (C-C motif) ligand (CCL) 2 have been found in PsA patients, with a T helper cells (Th) 1 immune predominance in the early phase of the disease. Moreover a decline of IP-10 levels has been observed in long lasting PsA, with a significant increase of the CCL2/IP-10 ratio, suggesting a shift from Th1 to Th2 immune response in long duration PsA. IP-10 levels in PsA patients are significantly higher in presence of autoimmune thyroiditis. IP-10 has been suggested to be a good marker to monitor the activity or progression of PsA. Attempts have been made to modulate or inhibit the production of IP-10 in PsA in order to modify the course of the disease.
Collapse
Affiliation(s)
- A Devito
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| |
Collapse
|
229
|
Abstract
Interferon(IFN)-gamma-induced protein 10 (IP-10) and its receptor, CXCR3, appear to contribute to the pathogenesis of rheumatoid arthritis (RA). IP-10 has been detected in sera, synovial fluid (SF), and synovial tissue in RA patients. IP-10 is mainly expressed by infiltrating macrophage-like cells and fibroblast-like synoviocytes in RA synovium. The elevated expression of CXCR3 on T cells from SF has been associated with high levels of IFN-gamma, which suggest a preferential Th1 phenotype. A human phase II clinical trial using an anti-IP-10 monoclonal antibody (MDX-1100) for RA patients who had an inadequate response to methotrexate treatment has shown that blocking IP-10 significantly increased response rate compared to the placebo group, suggesting a possible therapeutic use in humans.
Collapse
Affiliation(s)
- A Di Domenicantonio
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| |
Collapse
|
230
|
Bronger H, Karge A, Dreyer T, Zech D, Kraeft S, Avril S, Kiechle M, Schmitt M. Induction of cathepsin B by the CXCR3 chemokines CXCL9 and CXCL10 in human breast cancer cells. Oncol Lett 2017; 13:4224-4230. [PMID: 28599423 PMCID: PMC5453043 DOI: 10.3892/ol.2017.5994] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 01/31/2017] [Indexed: 12/25/2022] Open
Abstract
Cathepsin B (CTSB) is a lysosomal cysteine protease that has been linked to the progression of breast cancer, for example by activation of other proteases and tumor-promoting cytokines, thereby supporting tumor invasion and metastasis. Previously, it was shown that CTSB cleaves and inactivates C-X-C motif chemokine receptor 3 (CXCR3) chemokines. As CXCR3 ligands have been demonstrated to induce proteases in cancer cells, the present study hypothesized that they may also affect CTSB in breast cancer cells. The results demonstrated that the human breast cancer tumor cell lines MCF-7 and MDA-MB-231 express the CXCR3 splice variants A and B and CTSB. Upon binding to CXCR3, the two chemokine ligands C-X-C motif chemokine ligand (CXCL) 9 and CXCL10 trigger upregulation of CTSB in these breast cancer cells, whereas the CXCR3-B-specific ligand CXCL4 has no such effect, suggesting the involvement of CXCR3-A in the regulation of CTSB. In early-stage human breast cancer specimens (n=81), overexpression of CXCR3 is associated with statistically significant poorer overall survival, independent of lymph node status, tumor size and nuclear grading (hazard ratio=1.99; 95% confidence interval=1.00–3.97; P=0.050). In conclusion, the data from the current study propose a so far unknown mechanism by which breast cancer cells may exploit tumor-suppressive chemokines to enhance their invasiveness and reduce immune cell infiltration by the degradation of these chemokines. This mechanism may support the established unfavorable prognostic feature of CXCR3 expression in breast cancer.
Collapse
Affiliation(s)
- Holger Bronger
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| | - Anne Karge
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| | - Tobias Dreyer
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| | - Daniela Zech
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| | - Sara Kraeft
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| | - Stefanie Avril
- Department of Pathology, Technical University of Munich, D-81675 Munich, Germany.,Department of Pathology, Case Western Reserve University School of Medicine, University Hospital Case Medical Center, Cleveland, Ohio 44106-7288, USA
| | - Marion Kiechle
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| | - Manfred Schmitt
- Department of Gynecology and Obstetrics, Technical University of Munich, D-81675 Munich, Germany
| |
Collapse
|
231
|
Yang Y, Li S, Zhu G, Zhang Q, Wang G, Gao T, Li C, Wang L, Jian Z. A similar local immune and oxidative stress phenotype in vitiligo and halo nevus. J Dermatol Sci 2017; 87:50-59. [PMID: 28385330 DOI: 10.1016/j.jdermsci.2017.03.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 02/28/2017] [Accepted: 03/09/2017] [Indexed: 01/05/2023]
Abstract
BACKGROUND Vitiligo and halo nevus are two common T-cell-mediated skin disorders. Although autoimmunity has been suggested to be involved in both diseases, the relationship between vitiligo and halo nevus is not fully understood. OBJECTIVE The aim of the current study was to investigate whether vitiligo and halo nevus share the same immunological and oxidative stress response. METHODS Infiltrations of T cells, and expressions of chemokine receptors (CXCR3, CCR4, CCR5) and cytotoxic markers (Granzyme B, Perforin) in the lesions of vitiligo and halo nevus were examined by immunohistochemistry. Enzyme-linked immunosorbent assay was performed to analyze the expressions of chemokines in the serum samples and cytotoxic markers secreted by CD8+ T cells which were sorted from the peripheral blood mononuclear cells in healthy donors, vitiligo and halo nevus patients. Tissue levels of chemokine receptors and CXCR3 ligands in healthy controls, vitiligo patients and halo nevus patients were determined by qRT-PCR analysis. The percentages of CXCR3+ CD4+ T and CXCR3+ CD8+ T cells from the peripheral blood samples were examined by flow cytometry. Tissue and serum hydrogen peroxide (H2O2) concentrations were measured using H2O2 assay kit. RESULTS Immunohistochemistry revealed a significant T-cell response, with pronounced dermal infiltrates of CD8+ T cells in vitiligo and halo nevus. The inflammatory cytotoxic markers such as Granzyme B and Perforin were also elevated in vitiligo and halo nevus, suggesting inflammatory responses in situ. By qRT-PCR and ELISA assay, we found significantly increased expressions of the chemokine receptor CXCR3 and its ligands, especially the accumulated CXCL10 in the skin lesions of vitiligo and halo nevus. Moreover, the level of H2O2, a key player involved in regulation of the immune response was significantly upregulated in the skin lesions of vitiligo and halo nevus. In addition, the increased H2O2 concentration correlated positively with CXCL10 level in skin lesions of vitiligo and halo nevus. CONCLUSIONS These results demonstrate a H2O2-involved autoimmune phenotype in vitiligo and halo nevus, characterized by increased level of IFN-γ-inducible chemokine pair CXCL10-CXCR3, as well as a dense CD8+ T infiltration in the skin lesions, thus suggesting a similar pathogenesis of the two diseases.
Collapse
Affiliation(s)
- Yuqi Yang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Shuli Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Guannan Zhu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Qian Zhang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Tianwen Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Chunying Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China
| | - Lin Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China.
| | - Zhe Jian
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China.
| |
Collapse
|
232
|
Rafatpanah H, Felegari M, Azarpazhooh MR, Vakili R, Rajaei T, Hampson I, Hassanshahi G, Valizadeh N, Gerayli S, Hamid F, Zamanian S, MollaHosseini F, Rezaee SA. Altered expression of CXCR3 and CCR6 and their ligands in HTLV-1 carriers and HAM/TSP patients. J Med Virol 2017; 89:1461-1468. [PMID: 28206670 DOI: 10.1002/jmv.24779] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 02/06/2017] [Indexed: 01/16/2023]
Abstract
Recruitment of leukocytes by chemokines and chemokine receptors to CNS plays a crucial role in the induction of inflammatory response in HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). In the present study, chemokine and chemokine receptors involved in trafficking of lymphocytes to the CNS were measured in HAM/TSP patients, HTLV-1 asymptomatic carriers (ACs), and healthy controls. The PVL, CCR6, and CXCR3 mRNA expression, and CXCL9 and CXCL10 protein levels were measured in all subjects. The PVL of HAM/TSP patients was higher than that of ACs (P = 0.02). CCR6 expression was higher in HAM/TSP patients and in ACs compared to the healthy controls (P = 0.005 and P = 0.04, respectively). A significant difference was observed in CCR6 expression when a combination of HAM/TSP patients and ACs were compared to the healthy individuals (P = 0.005). Furthermore, there was a significantly lower CXCR3 expression between HAM/TSP and control groups (P = 0.001), and between the ACs and healthy controls (P = 0.001). However, the increased CXCR3 expression in ACs compared to HAM/TSP patients was not significant. Furthermore, the CXCL10 protein levels in HAM/TSP patients was higher than in controls (P = 0.012), and CXCL9 protein levels was also higher in the HAM/TSP and ACs groups than in the controls (P = 0.001 and P = 0.004, respectively). In conclusion, it seems that decreased expression of CXCR3 and higher expression of CCR6 were associated with HTLV-1 infection, what indicate that these alterations may favor virus dissemination but not disease manifestation.
Collapse
Affiliation(s)
- Houshang Rafatpanah
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Felegari
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Rosita Vakili
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Taraneh Rajaei
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ian Hampson
- Viral Oncology Labs, Institute of Cancer Studies, University of Manchester, St Mary's Hospital, Oxford Road, Manchester, UK
| | | | - Narges Valizadeh
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sina Gerayli
- Department of Biology, Western University, London, Ontario, N6A 5B7, Canada
| | - Farajifard Hamid
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shadi Zamanian
- Department of Neurology, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Seyed Abdolrahim Rezaee
- Inflammation and Inflammatory Diseases Division, Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
233
|
Sun C, Zhu X, Tao T, Zhang D, Wang Y, Xu H, Ren Y, Wang Y. The β4GalT1 affects the fibroblast-like synoviocytes invasion in rheumatoid arthritis by modifying N-linked glycosylation of CXCR3. Eur J Cell Biol 2017; 96:172-81. [PMID: 28215986 DOI: 10.1016/j.ejcb.2017.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 02/05/2017] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE The level of β-1,4-galactosyltransferase 1 (β4GalT1) is up-regulated in collagen-induced arthritis (CIA) mice. It is reported that CXC chemokine receptor 3 (CXCR3) can enhance the invasiveness of fibroblast-like synoviocytes (FLS) in rheumatoid arthritis (RA). This study aims to investigate the specific mechanism of β4GalT1 and relationship between β4GalT1 and CXCR3 in RA. METHODS The model of CIA mice was established to explore the role of β4GalT1. The N-glycosylation of CXCR3 was detected by mass spectrometry and western-blot. The interaction between β4GalT1 and CXCR3 was tested by immunoprecipitation. The truncted MMP-1 was detected by ELISA. Flow cytometry analysis was applied to measure ligand-receptor interaction between CXCR3 and CXCL10. RESULTS β4GalT1 can promote the inflammatory process of arthritis. CXCR3 was N-glycosylated and its glycosylation regulated by β4GalT1. β4GalT1 can enhance the invasiveness of FLS by modifying CXCR3. N-glycosylation of CXCR3 influences the ligand-receptor interaction between CXCR3 and CXCL10. CONCLUSIONS β4GalT1 can regulate N-glycans of CXCR3 in RA. N-glycans of CXCR3 affects CXCL10/CXCR3 ligand-binding which enhancing FLS invasion.
Collapse
|
234
|
Brewitz A, Eickhoff S, Dähling S, Quast T, Bedoui S, Kroczek RA, Kurts C, Garbi N, Barchet W, Iannacone M, Klauschen F, Kolanus W, Kaisho T, Colonna M, Germain RN, Kastenmüller W. CD8 + T Cells Orchestrate pDC-XCR1 + Dendritic Cell Spatial and Functional Cooperativity to Optimize Priming. Immunity 2017; 46:205-19. [PMID: 28190711 DOI: 10.1016/j.immuni.2017.01.003] [Citation(s) in RCA: 221] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 11/30/2016] [Accepted: 12/22/2016] [Indexed: 01/08/2023]
Abstract
Adaptive cellular immunity is initiated by antigen-specific interactions between T lymphocytes and dendritic cells (DCs). Plasmacytoid DCs (pDCs) support antiviral immunity by linking innate and adaptive immune responses. Here we examined pDC spatiotemporal dynamics during viral infection to uncover when, where, and how they exert their functions. We found that pDCs accumulated at sites of CD8+ T cell antigen-driven activation in a CCR5-dependent fashion. Furthermore, activated CD8+ T cells orchestrated the local recruitment of lymph node-resident XCR1 chemokine receptor-expressing DCs via secretion of the XCL1 chemokine. Functionally, this CD8+ T cell-mediated reorganization of the local DC network allowed for the interaction and cooperation of pDCs and XCR1+ DCs, thereby optimizing XCR1+ DC maturation and cross-presentation. These data support a model in which CD8+ T cells upon activation create their own optimal priming microenvironment by recruiting additional DC subsets to the site of initial antigen recognition.
Collapse
|
235
|
Wang HJ, Zhou Y, Liu RM, Qin YS, Cen YH, Hu LY, Wang SM, Hu ZJ. IP-10/ CXCR3 Axis Promotes the Proliferation of Vascular Smooth Muscle Cells through ERK1/2/CREB Signaling Pathway. Cell Biochem Biophys 2017; 75:139-147. [PMID: 28111710 DOI: 10.1007/s12013-017-0782-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 01/11/2017] [Indexed: 10/20/2022]
Abstract
Excessive proliferation of vascular smooth muscle cells is one of the main pathological processes leading to atherosclerosis and intimal hyperplasia after vascular interventional therapy. Our previous study has shown that interferon-γ inducible protein-10 contributes to the proliferation of vascular smooth muscle cell. However, the underlying mechanisms remain unclear. Extracellular signal-regulated kinase 1/2, serine/threonine kinase Akt, and cAMP response element binding protein are signaling pathways, which are considered to play important roles in the processes of vascular smooth muscle cell proliferation. Moreover, chemokine receptor 3 and Toll-like receptor 4 are potential receptors of inducible protein-10 in this process. In the present study, IP-10 was found to directly induce vascular smooth muscle cell proliferation, and exposure to inducible protein-10 activated extracellular signal-regulated kinase 1/2, serine/threonine kinase, and cAMP response element binding protein signaling. Inhibitor of extracellular signal-regulated kinase 1/2, rather than inhibitor of serine/threonine kinase, inhibited the phosphorylation of cAMP response element binding protein and reduced inducible protein-10-stimulated vascular smooth muscle cell proliferation. Knockdown of cAMP response element binding protein by siRNA inhibited inducible protein-10-induced vascular smooth muscle cell proliferation. Moreover, anti-CXCR3 IgG, instead of anti-Toll-like receptor 4 IgG, reduced inducible protein-10-induced vascular smooth muscle cell proliferation and inducible protein-10-stimulated extracellular signal-regulated kinase 1/2 and cAMP response element binding protein activation. Together, these results indicate that inducible protein-10 promotes vascular smooth muscle cell proliferation via chemokine receptor 3 and activation of extracellular signal-regulated kinase 1/2 inducible protein-10-induced vascular smooth muscle cell proliferation. These data provide important targets for future studies to modulate atherosclerosis and restenosis after vascular interventional therapy.
Collapse
Affiliation(s)
- Hui-Jin Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.,Department of General Surgery, Huadu District People's Hospital, Southern Medical University, Guanghzou, 510800, China
| | - Yu Zhou
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Rui-Ming Liu
- Laboratory of Department of Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Yuan-Sen Qin
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Ying-Huan Cen
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Ling-Yu Hu
- Department of Breast Surgery, Guangzhou Women and Children's Medical Center, Guangzhou, 510080, China
| | - Shen-Ming Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Zuo-Jun Hu
- Department of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
| |
Collapse
|
236
|
Zimmermann J, Hafezi W, Dockhorn A, Lorentzen EU, Krauthausen M, Getts DR, Müller M, Kühn JE, King NJC. Enhanced viral clearance and reduced leukocyte infiltration in experimental herpes encephalitis after intranasal infection of CXCR3-deficient mice. J Neurovirol 2017; 23:394-403. [PMID: 28116674 DOI: 10.1007/s13365-016-0508-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 12/06/2016] [Accepted: 12/14/2016] [Indexed: 12/25/2022]
Abstract
Herpes simplex virus type 1 (HSV-1) encephalitis (HSE) is the most common fatal sporadic encephalitis in developed countries. There is evidence from HSE animal models that not only direct virus-mediated damage caused but also the host's immune response contributes to the high mortality of the disease. Chemokines modulate and orchestrate this immune response. Previous experimental studies in HSE models identified the chemokine receptor CXCR3 and its ligands as molecules with a high impact on the course of HSE in mouse models. In this study, the role of the chemokine receptor CXCR3 was evaluated after intranasal infection with the encephalitogenic HSV-1 strain 17 syn+ using CXCR3-deficient mice (CXCR3-/-) and wild-type controls. We demonstrated a neurotropic viral spread into the CNS of after intranasal infection. Although viral load and histological distribution of infected neurons were independent from CXCR3 signaling early after infection, CXCR3-deficient mice cleared HSV-1 more efficiently 14 days after infection. Furthermore, CXCR3 deficiency led to a decreased weight loss in mice after HSV-1 infection. T cell infiltration and microglial activation was prominently reduced by inhibition of CXCR3 signaling. Quantitative PCR of proinflammatory cytokines and chemokines confirmed the reduced neuroinflammatory response in CXCR3-deficient mice during HSE. Our results demonstrate that the recruitment of peripheral immune cells into the CNS, induction of neuroinflammation, and consecutive weight loss during herpes encephalitis is modulated by CXCR3 signaling. Interruption of the CXCR3 pathway ameliorates the detrimental host immune response and in turn, leads paradoxically to an enhanced viral clearance after intranasal infection. Our data gives further insight into the role of CXCR3 during HSE after intranasal infection.
Collapse
Affiliation(s)
- J Zimmermann
- Department of Neurology, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - W Hafezi
- University Hospital Münster, Institute of Medical Microbiology-Clinical Virology, Münster, Germany
| | - A Dockhorn
- Department of Neurology, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Eva U Lorentzen
- University Hospital Münster, Institute of Medical Microbiology-Clinical Virology, Münster, Germany
| | - M Krauthausen
- Department of Neurology, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - Daniel R Getts
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Cour Pharmaceutical Development Company, Elmhurst, IL, USA.,The Discipline of Pathology, School of Medical Sciences, The University of Sydney, Sydney, NSW, 2006, Australia
| | - M Müller
- Department of Neurology, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany.
| | - Joachim E Kühn
- University Hospital Münster, Institute of Medical Microbiology-Clinical Virology, Münster, Germany
| | - Nicholas J C King
- The Discipline of Pathology, School of Medical Sciences, The University of Sydney, Sydney, NSW, 2006, Australia
| |
Collapse
|
237
|
Nie L, Wu W, Lu Z, Zhu G, Liu J. CXCR3 May Help Regulate the Inflammatory Response in Acute Lung Injury via a Pathway Modulated by IL-10 Secreted by CD8 + CD122+ Regulatory T Cells. Inflammation 2016; 39:526-33. [PMID: 26475448 DOI: 10.1007/s10753-015-0276-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The aim of this study is to investigate the role of CXCR3 and IL-10 in lipopolysaccharide (LPS)-induced acute lung injury (ALI). ALI was induced by LPS injection (10 mg/kg) via the tail vein in C57BL/6 mice. Mice were sacrificed after 2 or 12 h to examine the levels of inflammatory cytokines in bronchoalveolar lavage fluid (BALF) and histopathologic assessments. At 12 h after LPS injection, mice exhibited more severe lung infiltration by CD8+ T cell and less infiltration by CD8+CD122+ regulatory T cells than at 2 h after LPS challenge or in the control (mice not exposed to LPS). At 12 h, IFN-γ, CXCR3, and CXCL10 were significantly higher in the lungs. IL-10 in the lungs was significantly lower. CXCR3 may help to recruit CD8+ T cells and promotes IFN-γ and CXCL10 release. Such effects could be inhibited by IL-10 secreted by CD8+CD122+ regulatory T cells.
Collapse
|
238
|
Abstract
INTRODUCTION By virtue of its specificity for chemokines induced in Th1-associated pathologies, CXCR3 has attracted considerable attention as a target for therapeutic intervention. Several pharmacologically distinct small molecules with in vitro and in vivo potency have been described in the literature, although to date, none have shown efficacy in clinical trials. Areas covered: In this article, the author outlines the rationale for targeting CXCR3 and discusses the potential pitfalls in targeting receptors in poorly understood areas of chemokine biology. Furthermore, they cover emerging therapeutic areas outside of the 'traditional' Th1 arena in which CXCR3 antagonists may ultimately bear fruit. Finally, they discuss the design of recently discovered small molecules targeting CXCR3. Expert opinion: CXCR3 and its ligands appear to play roles in a multitude of diverse diseases in humans. In vitro studies suggest that CXCR3 is inherently 'druggable' and that potent, efficacious small molecules targeting CXCR3 antagonists will find a clinical niche. However, the well-trodden path to failure of small molecule chemokine receptor antagonists in clinical trials suggests that a cautious approach should be undertaken. Ideally, unequivocal evidence elucidating the precise role of CXCR3 should be obtained before targeting the receptor in a particular disease cohort.
Collapse
Affiliation(s)
- James E Pease
- a Inflammation, Repair & Development Section, National Heart & Lung Institute, Faculty of Medicine , Imperial College London , London , UK
| |
Collapse
|
239
|
Dinsart C, Pervolaraki K, Stroh-Dege A, Lavie M, Ronsse I, Rommelaere J, Van Damme J, Van Raemdonck K, Struyf S. Recombinant Parvoviruses Armed to Deliver CXCL4L1 and CXCL10 Are Impaired in Their Antiangiogenic and Antitumoral Effects in a Kaposi Sarcoma Tumor Model Due To the Chemokines' Interference with the Virus Cycle. Hum Gene Ther 2016; 28:295-306. [PMID: 28042949 DOI: 10.1089/hum.2016.108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Application of oncolytic viruses is a valuable option to broaden the armament of anticancer therapies, as these combine specific cytotoxic effects and immune-stimulating properties. The self-replicating H-1 parvovirus (H-1PV) is a prototypical oncolytic virus that, besides targeting tumor cells, also infects endothelial cells, thus combining oncolytic and angiostatic traits. To increase its therapeutic value, H-1PV can be armed with cytokines or chemokines to enhance the immunological response. Some chemokines-more specifically, the CXCR3 ligands CXCL4L1 and CXCL10-combine immune-stimulating properties with angiostatic activity. This study explores the therapeutic value of recombinant parvoviruses carrying CXCL4L1 or CXCL10 transgenes (Chi-H1/CXCL4L1 or Chi-H1/CXCL10, respectively) to inhibit the growth of the human Kaposi sarcoma cell line KS-IMM. KS-IMM cells infected by Chi-H1/CXCL4L1 or Chi-H1/CXCL10 released the corresponding chemokine and showed reduced migratory capacity. Therefore, the antitumoral capacity of Chi-H1/CXCL4L1 or Chi-H1/CXCL10 was tested in mice. Either in vitro infected KS-IMM cells were injected or subcutaneously growing KS-IMM xenografts were treated by peritumoral injections of the different viruses. Surprisingly, the transgenes did not increase the antitumoral effect of natural H-1PV. Further experiments indicated that CXCL4L1 and CXCL10 interfered with the expression of the viral NS1 protein in KS-IMM cells. These results indicate that the outcome of parvovirus-based delivery of CXCR3 ligands might be tumor cell type dependent, and hence its application must be considered carefully.
Collapse
Affiliation(s)
- Christiane Dinsart
- 1 Division of Tumor Virology, German Cancer Research Center , Heidelberg, Germany
| | - Kalliopi Pervolaraki
- 1 Division of Tumor Virology, German Cancer Research Center , Heidelberg, Germany.,2 Laboratory of Molecular Immunology, Department of Microbiology and Immunology, KU Leuven, Rega Institute for Medical Research , Leuven, Belgium
| | - Alexandra Stroh-Dege
- 1 Division of Tumor Virology, German Cancer Research Center , Heidelberg, Germany
| | - Muriel Lavie
- 1 Division of Tumor Virology, German Cancer Research Center , Heidelberg, Germany
| | - Isabelle Ronsse
- 2 Laboratory of Molecular Immunology, Department of Microbiology and Immunology, KU Leuven, Rega Institute for Medical Research , Leuven, Belgium
| | - Jean Rommelaere
- 1 Division of Tumor Virology, German Cancer Research Center , Heidelberg, Germany
| | - Jo Van Damme
- 2 Laboratory of Molecular Immunology, Department of Microbiology and Immunology, KU Leuven, Rega Institute for Medical Research , Leuven, Belgium
| | - Katrien Van Raemdonck
- 2 Laboratory of Molecular Immunology, Department of Microbiology and Immunology, KU Leuven, Rega Institute for Medical Research , Leuven, Belgium
| | - Sofie Struyf
- 2 Laboratory of Molecular Immunology, Department of Microbiology and Immunology, KU Leuven, Rega Institute for Medical Research , Leuven, Belgium
| |
Collapse
|
240
|
Abstract
IP-10 and its receptor CXCR3 play an important role in lymphocytic choriomeningitis (LCM). During the course of LCM in mice not only cells of the immune system but also central nervous system (CNS) resident cells are actively involved in both the pro- and the counter-inflammatory immune circuits. A central role for IP-10 in regulating the accumulation of effector T cells at sites of CNS inflammation, with no apparent compensatory effect of other CXCR3 ligands, has been shown. The producers of IP-10 are mainly resident cells of the CNS, and astrocytes are the dominant expressors in the neural parenchyma, not microglial cells or recruited bone marrow-derived cell types. These results are consistent with a mode suggesting a bidirectional interplay between resident cells of the CNS and the recruited virus-specific T cells with astrocytes as active participants in the local antiviral host response.
Collapse
Affiliation(s)
- U Politti
- Department of Clinical and Experimental Medicine, University of Pisa, Italy
| |
Collapse
|
241
|
Abstract
The α-chemokines (C-X-C motif) ligand 9 (CXCL9) and interferon γ-induced protein 10 (IP-10) are expressed in idiopathic inflammatory myopathies muscle. Abundant expression of IP-10 was observed on macrophages and T cells surrounding and invading non-necrotic muscle fibers in polymyositis and sporadic inclusion body myositis and in T cells in perimysial infiltrates of dermatomyositis. IP-10 was also localized to blood vessel endothelial cells in all inflammatory and normal muscle tissues. Serum IP-10 is high in patients with inflammatory myopathies. Human skeletal muscle cells might actively self-promote muscular inflammation by eliciting IP-10 secretion, under the influence of cytokines [Interferon (IFN-γ), Tumor Necrosis Factor (TNF-α)], which can amplify T helper (Th)1 cell tissue infiltration in vivo. It has been shown that drugs able to block the IP-10/chemokine (C-X-C motif) receptor 3 (CXCR3) axis can suppress inflammation in muscle.
Collapse
Affiliation(s)
- F Limongi
- Department of Clinical and Experimental Medicine, University of Pisa, Italy
| |
Collapse
|
242
|
Abstract
The importance of the Type-1 helper (Th1) chemokines in RSV (respiratory syncytial virus) infection has been shown by several studies, in animal models, and in humans. The production of Th1 chemokines within the lower respiratory tract has been shown in patients with RSV bronchiolitis, particularly chemokine (C-X-C motif) ligand (CXCL)10/interferon-γ-inducible protein 10 (IP-10), whose plasma levels were markedly elevated in acute infection. RSV fusion (F) or large (G) protein treatment of fully differentiated primary normal human bronchial epithelial cells induces apical secretion of IP-10 and other chemokines. Exposure to environmental tobacco smoke is associated with an increase in the frequency and severity of respiratory infections, including bronchiolitis, and inhibited RSV-induced Interferon (IFN)-α in plasmacytoid dendritic cells as well as the release of IP-10. Vitamin D in airway epithelium decreases RSV induction of NF-kappaB-driven genes such as IFN-β and IP-10. These findings highlight the role for the IP-10: chemokine (C-X-C motif) receptor (CXCR)3 signaling axis in RSV-infection by recruiting virus-specific T cells into the lung and promoting viral clearance.
Collapse
Affiliation(s)
- F Santini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Italy
| |
Collapse
|
243
|
Mir H, Kapur N, Singh R, Sonpavde G, Lillard JW, Singh S. Andrographolide inhibits prostate cancer by targeting cell cycle regulators, CXCR3 and CXCR7 chemokine receptors. Cell Cycle 2016; 15:819-26. [PMID: 27029529 DOI: 10.1080/15384101.2016.1148836] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Despite state of the art cancer diagnostics and therapies offered in clinic, prostate cancer (PCa) remains the second leading cause of cancer-related deaths. Hence, more robust therapeutic/preventive regimes are required to combat this lethal disease. In the current study, we have tested the efficacy of Andrographolide (AG), a bioactive diterpenoid isolated from Andrographis paniculata, against PCa. This natural agent selectively affects PCa cell viability in a dose and time-dependent manner, without affecting primary prostate epithelial cells. Furthermore, AG showed differential effect on cell cycle phases in LNCaP, C4-2b and PC3 cells compared to retinoblastoma protein (RB(-/-)) and CDKN2A lacking DU-145 cells. G2/M transition was blocked in LNCaP, C4-2b and PC3 after AG treatment whereas DU-145 cells failed to transit G1/S phase. This difference was primarily due to differential activation of cell cycle regulators in these cell lines. Levels of cyclin A2 after AG treatment increased in all PCa cells line. Cyclin B1 levels increased in LNCaP and PC3, decreased in C4-2b and showed no difference in DU-145 cells after AG treatment. AG decreased cyclin E2 levels only in PC3 and DU-145 cells. It also altered Rb, H3, Wee1 and CDC2 phosphorylation in PCa cells. Intriguingly, AG reduced cell viability and the ability of PCa cells to migrate via modulating CXCL11 and CXCR3 and CXCR7 expression. The significant impact of AG on cellular and molecular processes involved in PCa progression suggests its potential use as a therapeutic and/or preventive agent for PCa.
Collapse
Affiliation(s)
- Hina Mir
- a Department of Microbiology , Biochemistry and Immunology, Morehouse School of Medicine , Atlanta , GA , USA
| | - Neeraj Kapur
- a Department of Microbiology , Biochemistry and Immunology, Morehouse School of Medicine , Atlanta , GA , USA
| | - Rajesh Singh
- a Department of Microbiology , Biochemistry and Immunology, Morehouse School of Medicine , Atlanta , GA , USA
| | - Guru Sonpavde
- b Department of Medicine , Division of Hematology and Oncology, University of Alabama of Birmingham , Birmingham , AL , USA
| | - James W Lillard
- a Department of Microbiology , Biochemistry and Immunology, Morehouse School of Medicine , Atlanta , GA , USA
| | - Shailesh Singh
- a Department of Microbiology , Biochemistry and Immunology, Morehouse School of Medicine , Atlanta , GA , USA
| |
Collapse
|
244
|
Abstract
Some studies reported that chemokine interferon-γ-inducible protein 10 (IP-10) and its receptor chemokine (C-X-C motif) receptor (CXCR) 3, which is exhibited by T cells, are expressed in several types of cutaneous damages associated with Systemic Lupus Erythematosus (SLE), and that the CXCR3-activating chemokines are produced locally, suggesting their significant role in the recruitment of T cells in these inflammatory lesions. The involvement of IP-10 and CXCR3 has been shown also in several other types of tissue damages associated with SLE, such as glomerulonephritis or central nervous system lupus. Urinary IP-10 is a sensitive and non-invasive diagnostic tool for monitoring lupus nephritis patients, and the response to treatments. Serum levels of IP-10 are increased in SLE patients, showing a strong correlation with disease activity. Levels of IP-10 are also increased in the cerebrospinal fluid samples from neuropsychiatric SLE patients. These data provide increasing evidence that IP-10 may participate in the pathogenesis of a variety of the manifestations of SLE, even if the exact role of IP-10 in the pathogenesis of SLE remains to be clarified.
Collapse
Affiliation(s)
- G Elia
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Italy
| |
Collapse
|
245
|
Huen AC, Marathi A, Nam PK, Wells A. CXCL11 Expression by Keratinocytes Occurs Transiently Between Reaching Confluence and Cellular Compaction. Adv Wound Care (New Rochelle) 2016; 5:517-526. [PMID: 28078185 DOI: 10.1089/wound.2015.0680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/01/2016] [Indexed: 12/31/2022] Open
Abstract
Objective: To investigate whether differentiation or cellular confluence is responsible for CXCL11 expression patterns in re-epithelialization. Approach:In vitro model systems of re-epithelialization using the HaCaT keratinocyte cell line were utilized in monitoring expression of differentiation markers, including desmoplakin and various cytokeratins while evaluating for an association with chemokine CXCL11 expression. Results: CXCL11 expression was elevated in sparse culture with peak expression near the time of confluence. This somewhat followed the accumulation of desmoplakin in detergent-insoluble pool of proteins. However, in postconfluent, despite continued accumulation of desmoplakin within cells, CXCL11 expression decreased to baseline levels. This biphasic pattern was also seen in low calcium culture, an environment that inhibits keratinocyte differentiation and accumulation of desmosomal proteins. Highest CXCL11-expressing areas best correlated with newly confluent areas within culture expressing basal keratin 14, but also activated keratin 6. Innovation: Achievement of a threshold cellular density induces cell signaling cascade through CXCR3 that, in addition to other undiscovered pathways, can progress cutaneous wounds from the proliferative into the remodeling phases of cutaneous wound healing. Conclusion: These results suggest that the achievement of confluence with increased cellular density by migrating keratinocytes at the wound edge triggers expression of CXCL11. Since CXCR3 stimulation in endothelial cells results in apoptosis and causes neovascular pruning, whereas stimulation of CXCR3 in fibroblasts results decreased motility and cellular contraction, we speculate that CXCL11 expression by epidermal cells upon achieving cellular confluence could be the source of CXCR3 stimulation in the dermis ushering a transition from proliferative to remodeling phases of wound healing.
Collapse
Affiliation(s)
- Arthur C. Huen
- Department of Dermatology, McGowan Institute for Regenerative Medicine, VA Pittsburgh Health System, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Archana Marathi
- Department of Dermatology, McGowan Institute for Regenerative Medicine, VA Pittsburgh Health System, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Peter K. Nam
- Department of Dermatology, McGowan Institute for Regenerative Medicine, VA Pittsburgh Health System, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Alan Wells
- Department of Pathology, McGowan Institute for Regenerative Medicine, VA Pittsburgh Health System, University of Pittsburgh, Pittsburgh, Pennsylvania
| |
Collapse
|
246
|
Levy JMS, Magro C. Atrophying pityriasis versicolor as an idiosyncratic T cell-mediated response to Malassezia: A case series. J Am Acad Dermatol 2016; 76:730-735. [PMID: 27816291 DOI: 10.1016/j.jaad.2016.08.062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 08/28/2016] [Accepted: 08/30/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Atrophying pityriasis versicolor (PV), first described in 1971, is a rare variant in which lesions appear atrophic. OBJECTIVE We sought to determine the pathophysiology of atrophying PV. METHODS A retrospective chart review identified 6 cases of atrophying PV. In all cases, routine light microscopy, an elastic tissue stain, and immunohistochemical assessment for the expression of CD3, CD4, CD8, GATA3 and CXCR3 was performed. RESULTS All cases demonstrated hyperkeratosis with intracorneal infiltration by pathogenic hyphal forms as well as epidermal attenuation and papillary dermal elastolysis. A supervening, mild-to-moderate, superficial lymphocytic infiltrate was noted and characterized by a focal CD8+ T cell-mediated interface dermatitis along with a mixed T-cell infiltrate composed of GATA3+ and CXCR3+ T cells. LIMITATIONS Small sample size and the loss of some patients to follow-up. CONCLUSION Atrophying PV represents the sequelae of a mixed helper T-cell (TH1 and TH2) idiosyncratic immune response to Malassezia and can present as a protracted dermatosis that may clinically mimic an atypical lymphocytic infiltrate. TH1 cytokines can recruit histiocytes, a source of elastases, and upregulate matrix metalloproteinase activity, which may contribute to epidermal atrophy.
Collapse
|
247
|
Zhu G, Yan HH, Pang Y, Jian J, Achyut BR, Liang X, Weiss JM, Wiltrout RH, Hollander MC, Yang L. CXCR3 as a molecular target in breast cancer metastasis: inhibition of tumor cell migration and promotion of host anti-tumor immunity. Oncotarget 2015; 6:43408-19. [PMID: 26485767 DOI: 10.18632/oncotarget.6125] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 10/10/2015] [Indexed: 02/05/2023] Open
Abstract
Chemokines and chemokine receptors have critical roles in cancer metastasis and have emerged as one of the targeting options in cancer therapy. However, the treatment efficacy on both tumor and host compartments needs to be carefully evaluated. Here we report that targeting CXCR3 decreased tumor cell migration and at the same time improved host anti-tumor immunity. We observed an increased expression of CXCR3 in metastatic tumor cells compared to those from non-metastatic tumor cells. Knockdown (KD) of CXCR3 in metastatic tumor cells suppressed tumor cell migration and metastasis. Importantly, CXCR3 expression in clinical breast cancer samples correlated with progression and metastasis. For the host compartment, deletion of CXCR3 in all host cells in 4T1 mammary tumor model significantly decreased metastasis. The underlying mechanisms involve a decreased expression of IL-4, IL-10, iNOs, and Arg-1 in myeloid cells and an increased T cell response. IFN-γ neutralization diminished the metastasis inhibition in the CXCR3 knockout (KO) mice bearing 4T1 tumors, suggesting a critical role of host CXCR3 in immune suppression. Consistently, targeting CXCR3 using a small molecular inhibitor (AMG487) significantly suppressed metastasis and improved host anti-tumor immunity. Our findings demonstrate that targeting CXCR3 is effective in both tumor and host compartments, and suggest that CXCR3 inhibition is likely to avoid adverse effects on host cells.
Collapse
|
248
|
Bernardini G, Antonangeli F, Bonanni V, Santoni A. Dysregulation of Chemokine/Chemokine Receptor Axes and NK Cell Tissue Localization during Diseases. Front Immunol 2016; 7:402. [PMID: 27766097 PMCID: PMC5052267 DOI: 10.3389/fimmu.2016.00402] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 09/21/2016] [Indexed: 01/06/2023] Open
Abstract
Chemokines are small chemotactic molecules that play key roles in physiological and pathological conditions. Upon signaling via their specific receptors, chemokines regulate tissue mobilization and trafficking of a wide array of immune cells, including natural killer (NK) cells. Current research is focused on analyzing changes in chemokine/chemokine receptor expression during various diseases to interfere with pathological trafficking of cells or to recruit selected cell types to specific tissues. NK cells are a heterogeneous lymphocyte population comprising several subsets endowed with distinct functional properties and mainly representing distinct stages of a linear development process. Because of their different functional potential, the type of subset that accumulates in a tissue drives the final outcome of NK cell-regulated immune response, leading to either protection or pathology. Correspondingly, chemokine receptors, including CXCR4, CXCR3, and CX3CR1, are differentially expressed by NK cell subsets, and their expression levels can be modulated during NK cell activation. At first, this review will summarize the current knowledge on the contribution of chemokines to the localization and generation of NK cell subsets in homeostasis. How an inappropriate chemotactic response can lead to pathology and how chemokine targeting can therapeutically affect tissue recruitment/localization of distinct NK cell subsets will also be discussed.
Collapse
Affiliation(s)
- Giovanni Bernardini
- Department of Molecular Medicine, Sapienza University, Rome, Italy; IRCCS NEUROMED - Mediterranean Neurological Institute, Isernia, Italy
| | | | - Valentina Bonanni
- Department of Molecular Medicine, Sapienza University , Rome , Italy
| | - Angela Santoni
- IRCCS NEUROMED - Mediterranean Neurological Institute, Isernia, Italy; Department of Molecular Medicine, Istituto Pasteur-Fondazione Cenci Bolognetti, Rome, Italy
| |
Collapse
|
249
|
Blank T, Detje CN, Spieß A, Hagemeyer N, Brendecke SM, Wolfart J, Staszewski O, Zöller T, Papageorgiou I, Schneider J, Paricio-Montesinos R, Eisel UL, Manahan-Vaughan D, Jansen S, Lienenklaus S, Lu B, Imai Y, Müller M, Goelz SE, Baker DP, Schwaninger M, Kann O, Heikenwalder M, Kalinke U, Prinz M. Brain Endothelial- and Epithelial-Specific Interferon Receptor Chain 1 Drives Virus-Induced Sickness Behavior and Cognitive Impairment. Immunity 2016; 44:901-12. [PMID: 27096319 DOI: 10.1016/j.immuni.2016.04.005] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 10/19/2015] [Accepted: 01/05/2016] [Indexed: 12/22/2022]
Abstract
Sickness behavior and cognitive dysfunction occur frequently by unknown mechanisms in virus-infected individuals with malignancies treated with type I interferons (IFNs) and in patients with autoimmune disorders. We found that during sickness behavior, single-stranded RNA viruses, double-stranded RNA ligands, and IFNs shared pathways involving engagement of melanoma differentiation-associated protein 5 (MDA5), retinoic acid-inducible gene 1 (RIG-I), and mitochondrial antiviral signaling protein (MAVS), and subsequently induced IFN responses specifically in brain endothelia and epithelia of mice. Behavioral alterations were specifically dependent on brain endothelial and epithelial IFN receptor chain 1 (IFNAR). Using gene profiling, we identified that the endothelia-derived chemokine ligand CXCL10 mediated behavioral changes through impairment of synaptic plasticity. These results identified brain endothelial and epithelial cells as natural gatekeepers for virus-induced sickness behavior, demonstrated tissue specific IFNAR engagement, and established the CXCL10-CXCR3 axis as target for the treatment of behavioral changes during virus infection and type I IFN therapy.
Collapse
|
250
|
Varikuti S, Natarajan G, Oghumu S, Sperling RH, Moretti E, Stock J, Papenfuss TL, Satoskar AR. Transgenic T cell-specific expression of CXCR3 enhances splenic and hepatic T cell accumulation but does not affect the outcome of visceral leishmaniasis. Cell Immunol 2016; 309:61-68. [PMID: 27614845 DOI: 10.1016/j.cellimm.2016.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 08/30/2016] [Accepted: 08/31/2016] [Indexed: 12/18/2022]
Abstract
The outcome of visceral leishmaniasis, caused by parasite Leishmania donovani, depends on the recruitment of leishmanicidal Th1 cells. Chemokine receptor CXCR3, preferentially expressed by Th1 cells, is critical for migration of these T cells during infection. During chronic VL, there is a decrease in the presence of CXCR3-expressing CD4+ T cells in the spleen, which is associated with high parasitic burden in this organ. We therefore examined whether T cell-specific expression of CXCR3 in mice (CXCR3Tg) would promote resistance to VL. L. donovani infected CXCR3Tg mice showed increased accumulation of T cells in the spleens compared to WT littermates (CXCR3+/+). However, CXCR3+ T cells from CXCR3Tg mice showed low CD69 expression and these mice developed fewer granulomas. Additionally, both groups of mice showed similar cytokine profiles and parasitic burdens during the course of infection. In summary, although T cell-specific expression of CXCR3 promoted the accumulation of CXCR3-expressing T cells during L. donovani infection, this did not enhance resistance to VL.
Collapse
Affiliation(s)
- Sanjay Varikuti
- Department of Pathology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Gayathri Natarajan
- Department of Microbiology, The Ohio State University, Columbus, OH, USA
| | - Steve Oghumu
- College of Public Health, The Ohio State University, Columbus, OH, USA
| | - Rachel H Sperling
- Department of Pathology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Ellen Moretti
- Department of Pathology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - James Stock
- Department of Pathology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Tracey L Papenfuss
- College of Veterinary Medicine, The Ohio State University Medical Center, Columbus, USA
| | - Abhay R Satoskar
- Department of Pathology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA; Department of Microbiology, The Ohio State University, Columbus, OH, USA.
| |
Collapse
|