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Holst CB, Christensen IJ, Vitting-Seerup K, Skjøth-Rasmussen J, Hamerlik P, Poulsen HS, Johansen JS. Plasma IL-8 and ICOSLG as prognostic biomarkers in glioblastoma. Neurooncol Adv 2021; 3:vdab072. [PMID: 34286278 PMCID: PMC8284624 DOI: 10.1093/noajnl/vdab072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background CNS immune privilege has been challenged in recent years. Glioblastoma (GBM) immune dysfunction includes complex interactions with the immune system outside the CNS. The aim of this study was to determine diagnostic and prognostic potential of immune-related proteins in plasma in GBM and interrogate biomarker presence in the brain tumor microenvironment (TME). Methods One hundred and fifty-eight patients with glioma WHO grade II–IV were included. Plasma collected at surgery was screened for 92 proteins using proximity extension assay technology and related to clinical outcome. Secretion and expression of candidate prognostic biomarkers were subsequently analyzed in 8 GBM cell lines and public RNAseq data. Results Plasma levels of 20 out of 92 screened proteins were significantly different in patients with GBM compared to patients with astrocytoma WHO grade II–III. High plasma interleukin-8 (IL-8) (hazard ratio [HR] = 1.52; P = .0077) and low CD244 (HR = 0.36; P = .0004) were associated with short progression-free survival and high plasma IL-8 (HR = 1.40; P = .044) and low ICOS ligand (ICOSLG) (HR = 0.17; P = .0003) were associated with short overall survival (OS) in newly diagnosed patients with GBM. A similar trend was found for ICOSLG (HR = 0.34; P = .053) in recurrent GBM. IL-8 was mostly secreted and expressed by mesenchymal GBM cell lines and expressed by vascular cells and immune cells in the TME. This was also the case for ICOSLG, although less consistent, and with additional expression in tumor-associated oligodendrocytes. Conclusions High plasma IL-8 and low ICOSLG at surgery are associated with short OS in newly diagnosed GBM. Source of plasma ICOSLG may be found outside the TME.
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Affiliation(s)
- Camilla Bjørnbak Holst
- Department of Radiation Biology, Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Brain Tumor Biology, Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark.,Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Kristoffer Vitting-Seerup
- Brain Tumor Biology, Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark.,Bioinformatics Centre, Department of Biology, Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Jane Skjøth-Rasmussen
- Department of Neurosurgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Petra Hamerlik
- Brain Tumor Biology, Danish Cancer Society Research Center, Danish Cancer Society, Copenhagen, Denmark
| | - Hans Skovgaard Poulsen
- Department of Radiation Biology, Department of Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Julia Sidenius Johansen
- Department of Oncology, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of Medicine, Herlev and Gentofte Hospital, Copenhagen University Hospital, Herlev, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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2
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Zhang W, Wang H, Sun M, Deng X, Wu X, Ma Y, Li M, Shuoa SM, You Q, Miao L. CXCL5/CXCR2 axis in tumor microenvironment as potential diagnostic biomarker and therapeutic target. Cancer Commun (Lond) 2021; 40:69-80. [PMID: 32237072 PMCID: PMC7163794 DOI: 10.1002/cac2.12010] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 01/31/2020] [Indexed: 12/14/2022] Open
Abstract
The components of the tumor microenvironment (TME) in solid tumors, especially chemokines, are currently attracting much attention from scientists. C-X-C motif chemokine ligand 5 (CXCL5) is one of the important chemokines in TME. Overexpression of CXCL5 is closely related to the survival time, recurrence and metastasis of cancer patients. In TME, CXCL5 binds to its receptors, such as C-X-C motif chemokine receptor 2 (CXCR2), to participate in the recruitment of immune cells and promote angiogenesis, tumor growth, and metastasis. The CXCL5/CXCR2 axis can act as a bridge between tumor cells and host cells in TME. Blocking the transmission of CXCL5/CXCR2 signals can increase the sensitivity and effectiveness of immunotherapy and slow down tumor progression. CXCL5 and CXCR2 are also regarded as biomarkers for predicting prognosis and molecular targets for customizing the treatment. In this review, we summarized the current literature regarding the biological functions and clinical significance of CXCL5/CXCR2 axis in TME. The possibility to use CXCL5 and CXCR2 as potential prognostic biomarkers and therapeutic targets in cancer is also discussed.
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Affiliation(s)
- Wen Zhang
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Huishan Wang
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Mingyang Sun
- Department of Surgery, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Xueting Deng
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Xueru Wu
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Yilan Ma
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Mengjing Li
- Department of Biotherapy, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China.,Key Laboratory for Aging and Disease, Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Said Maisam Shuoa
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Qiang You
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China.,Department of Biotherapy, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China.,Key Laboratory for Aging and Disease, Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
| | - Lin Miao
- Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, P. R. China
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3
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Cardoso CV, de Barros MP, Bachi ALL, Bernardi MM, Kirsten TB, de Fátima Monteiro Martins M, Rocha PRD, da Silva Rodrigues P, Bondan EF. Chemobrain in rats: Behavioral, morphological, oxidative and inflammatory effects of doxorubicin administration. Behav Brain Res 2019; 378:112233. [PMID: 31521736 DOI: 10.1016/j.bbr.2019.112233] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/15/2019] [Accepted: 09/11/2019] [Indexed: 02/07/2023]
Abstract
Doxorubicin (DOX) is known to cause cognitive impairments in patients submitted to long-term chemotherapy (deficits also known as chemobrain). The present study investigated whether DOX administration could affect behavior and brain morphology, as well as oxidative and inflammatory status in rats. Male Wistar rats were injected with DOX (2.5 mg/kg/week, 4 weeks, i.p.) or saline. Behavioral analyses were performed. Brains were collected and analyzed by hematoxylin-eosin and luxol fast blue staining techniques and by immunohistochemistry (for glial fibrillary acidic protein expression in astrocytes; GFAP). Serum and brain levels of TNF-α, IL-1β, IL-6, IL-8, IL-10 and CXCL-1 were determined. Oxidative parameters, such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), nitric oxide (NO•), brain iron and ferritin levels, as well as reduced and oxidized glutathione (GSH and GSSG, respectively) and thiobarbituric acid reactive substances (TBARS) were also assessed in brain. DOX-injected rats presented cognitive/memory impairments, increased GFAP expression, increased levels of TBARS, NO and GR, but decreased GSSG and ferritin levels in brain homogenate. In addition, increased serum and brain levels of IL-6, IL-8 and CXCL1 were noted in the DOX group, although IL-10 decreased. As DOX has a poor penetration across the blood-brain barrier (BBB), it is proposed that this drug elicits a systemic proinflammatory response with increase of proinflammatory cytokines which cross the BBB and can be involved in the induction of oxidative molecules and proinflammatory cytokines that altogether induce astrogliosis all over the brain. These events may be responsable for chemotherapy-induced cognitive/memory deficits.
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Affiliation(s)
- Carolina Vieira Cardoso
- Graduate Program in Environmental and Experimental Pathology, University Paulista, Rua Doutor Bacelar, 1212, 4th Floor, São Paulo (SP), 04026-002, Brazil.
| | - Marcelo Paes de Barros
- Institute of Physical Activity and Sports Science (ICAFE), University Cruzeiro do Sul, Rua Galvão Bueno 868, Building B, 13th Floor, São Paulo (SP), 01506-000, Brazil
| | - André Luís Lacerda Bachi
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Rua Pedro Ernesto, 240, São José dos Campos (SP), 12245-520, Brazil; Department of Otorhinolaryngology, Federal University of São Paulo, Rua Pedro de Toledo, 947, São Paulo (SP), 04039-002, Brazil
| | - Maria Martha Bernardi
- Graduate Program in Environmental and Experimental Pathology, University Paulista, Rua Doutor Bacelar, 1212, 4th Floor, São Paulo (SP), 04026-002, Brazil
| | - Thiago Berti Kirsten
- Graduate Program in Environmental and Experimental Pathology, University Paulista, Rua Doutor Bacelar, 1212, 4th Floor, São Paulo (SP), 04026-002, Brazil
| | - Maria de Fátima Monteiro Martins
- School of Veterinary Medicine, University Cruzeiro do Sul, Avenida Tenente Laudelino Ferreira do Amaral, 700, São Paulo (SP), 08060-000, Brazil
| | - Paulo Ricardo Dell'Armelina Rocha
- Graduate Program in Environmental and Experimental Pathology, University Paulista, Rua Doutor Bacelar, 1212, 4th Floor, São Paulo (SP), 04026-002, Brazil
| | - Paula da Silva Rodrigues
- Graduate Program in Environmental and Experimental Pathology, University Paulista, Rua Doutor Bacelar, 1212, 4th Floor, São Paulo (SP), 04026-002, Brazil
| | - Eduardo Fernandes Bondan
- Graduate Program in Environmental and Experimental Pathology, University Paulista, Rua Doutor Bacelar, 1212, 4th Floor, São Paulo (SP), 04026-002, Brazil.
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4
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Qiao B, Luo W, Liu Y, Wang J, Liu C, Liu Z, Chen S, Gu J, Qi X, Wu T. The prognostic value of CXC chemokine receptor 2 (CXCR2) in cancers: a meta-analysis. Oncotarget 2017; 9:15068-15076. [PMID: 29599927 PMCID: PMC5871098 DOI: 10.18632/oncotarget.23492] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 09/03/2017] [Indexed: 11/25/2022] Open
Abstract
Background & Aims Quite a few studies had investigated the correlation between CXC chemokine receptor 2 (CXCR2) and cancer. This meta-analysis was aimed to comprehensively summarize the previous studies and to explore the prognostic value of CXCR2 in patients with cancer. Materials and Methods An adequate literature search in EMBASE and PubMed was conducted. Articles in English which have reported CXCR2 expression in patients and enough data to calculate hazard ratio (HR) were included. Effect estimates were analyzed with Review Manager 5.2. The endpoint was overall survival (OS) and recurrence-free survival (RFS). Result Twelve studies from 10 publications with a total of 2,461 patients were identified. It was shown that high level of CXCR2 was significantly associated with poorer overall survival (OS) (HR = 1.69, 95% CI = 1.46-1.96, p < 0.0001, I2 = 45%) and RFS (HR = 1.50, 95% CI = 1.25-1.80, p < 0.0001, I2 = 6%). The analyses of different analysis models (univariate or multivariate models), sample size (< 300 or ≥ 300) and ethnicity (Asian and Caucasian) have indicated the negative impact of CXCR2 over-expression on survival of patients with cancer. Stratified by cancer type, high-expression of CXCR2 was associated with unfavorable OS in laryngeal squamous cell carcinoma, lung cancer, pancreatic ductal carcinoma, clear-cell renal cell carcinoma and hepatocellular carcinoma; however, there was significant difference between high- and low-expression of CXCR2 in digestive tract cancer (esophageal adenocarcinoma and squamous cell carcinoma procession, resected esophageal carcinoma, esophageal cancer and gastric cancer). Conclusions CXCR2 is an unfavorable predictor in terms of OS and RFS in patients with cancer except for digestive tract cancer and is related with poorer prognostic.
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Affiliation(s)
- Bingbing Qiao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenqin Luo
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanna Liu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jing Wang
- Department of Hepatobiliary Disease, The Affiliated (T.C.M) Hospital of Southwest Medical University, Luzhou, China
| | - Chuan Liu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhao Liu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Sizhe Chen
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jingjing Gu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaolong Qi
- Department of Hepatobiliary Disease, The Affiliated (T.C.M) Hospital of Southwest Medical University, Luzhou, China
| | - Tongwei Wu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Hepatobiliary Disease, The Affiliated (T.C.M) Hospital of Southwest Medical University, Luzhou, China
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5
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Systematic review and meta-analysis of the prognostic value of CXCR2 in solid tumor patients. Oncotarget 2017; 8:109740-109751. [PMID: 29312644 PMCID: PMC5752557 DOI: 10.18632/oncotarget.22285] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/02/2017] [Indexed: 01/19/2023] Open
Abstract
CXC chemokine receptor-2 (CXCR2) expression is associated with the prognosis of multiple cancers. We performed a meta-analysis to determine the association between the CXCR2 expression in tumor tissue and patient prognosis. We compiled related literature from PubMed, Embase, and Web of Science (last updated July 31, 2017). A total of 4012 patients with solid tumors from 21 studies were included to evaluate the association between CXCR2 and overall survival, recurrence-free survival, or disease-free survival. High CXCR2 expression was significantly associated with poor overall survival (pooled HR = 1.82; 95% CI = 1.63-2.03; P < 0.001), recurrence-free survival (pooled HR = 1.40; 95% CI = 1.21-1.62; P < 0.001), and disease-free survival (pooled HR = 1.89; 95% CI = 1.05-3.40; P = 0.033), especially in patients with digestive system neoplasms. Thus high CXCR2 expression in tumor tissue appears predictive of a poor prognosis in patients with solid tumors. Further studies will be required to determine whether CXCR2 blockade has a favorable effect on the prognosis of patients with cancer.
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6
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Kast RE, Hill QA, Wion D, Mellstedt H, Focosi D, Karpel-Massler G, Heiland T, Halatsch ME. Glioblastoma-synthesized G-CSF and GM-CSF contribute to growth and immunosuppression: Potential therapeutic benefit from dapsone, fenofibrate, and ribavirin. Tumour Biol 2017; 39:1010428317699797. [DOI: 10.1177/1010428317699797] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Increased ratio of circulating neutrophils to lymphocytes is a common finding in glioblastoma and other cancers. Data reviewed establish that any damage to brain tissue tends to cause an increase in G-CSF and/or GM-CSF (G(M)-CSF) synthesized by the brain. Glioblastoma cells themselves also synthesize G(M)-CSF. G(M)-CSF synthesized by brain due to damage by a growing tumor and by the tumor itself stimulates bone marrow to shift hematopoiesis toward granulocytic lineages away from lymphocytic lineages. This shift is immunosuppressive and generates the relative lymphopenia characteristic of glioblastoma. Any trauma to brain—be it blunt, sharp, ischemic, infectious, cytotoxic, tumor encroachment, or radiation—increases brain synthesis of G(M)-CSF. G(M)-CSF are growth and motility enhancing factors for glioblastomas. High levels of G(M)-CSF contribute to the characteristic neutrophilia and lymphopenia of glioblastoma. Hematopoietic bone marrow becomes entrained with, directed by, and contributes to glioblastoma pathology. The antibiotic dapsone, the lipid-lowering agent fenofibrate, and the antiviral drug ribavirin are Food and Drug Administration– and European Medicines Agency–approved medicines that have potential to lower synthesis or effects of G(M)-CSF and thus deprive a glioblastoma of some of the growth promoting contributions of bone marrow and G(M)-CSF.
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Affiliation(s)
| | - Quentin A Hill
- Department of Haematology, St James’s University Hospital, Leeds Teaching Hospitals, Leeds, UK
| | - Didier Wion
- INSERM U1205, Centre de Recherche Biomédicale Edmond J. Safra, Grenoble, France
| | - Håkan Mellstedt
- Department of Oncology, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, Pisa, Italy
| | | | - Tim Heiland
- Department of Neurosurgery, University of Ulm, Ulm, Germany
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7
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Maeda S, Kuboki S, Nojima H, Shimizu H, Yoshitomi H, Furukawa K, Miyazaki M, Ohtsuka M. Duffy antigen receptor for chemokines (DARC) expressing in cancer cells inhibits tumor progression by suppressing CXCR2 signaling in human pancreatic ductal adenocarcinoma. Cytokine 2017; 95:12-21. [PMID: 28214673 DOI: 10.1016/j.cyto.2017.02.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 02/04/2017] [Accepted: 02/08/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) has a dismal prognosis. Chemokines play important roles in the progression of many malignancies; however, the role of chemokine receptor expression in clinical cases of PDAC is unclear. Moreover, little is known about DARC, a decoy receptor of CXC chemokines, in the regulation of tumor progression. METHODS Functions of chemokine receptors were evaluated using surgical specimens collected from PDAC patients, and PDAC cell lines. RESULTS CXCR2 expression had no impacts on predicting prognosis, but low DARC expression in cancer cells was an independent risk factor for poor prognosis. In PDAC with low DARC expression, tumor sizes were larger and vascular invasion was increased. High CXCR2 expression was a significant predictor for poor prognosis, only in PDAC patients with low DARC expression. CXCR2 signaling induced STAT3 activation in PDAC, resulting in promoting cell cycle progression, inhibiting apoptosis, inducing angiogenesis, and enhancing invasiveness. DARC inhibited STAT3 activation by down-regulating CXCR2 signaling. These effects were confirmed by EMSA in vitro. DARC knockdown significantly increased cell proliferation in CFPAC-1 cells with high DARC expression, by activating STAT3. In contrast, CXCR2 knockdown inhibited the proliferative effects of IL-8 in MIA PaCa-2 cells with low DARC expression. Moreover, the inhibitory effect of CXCR2 antagonist on PDAC cell proliferation was more powerful in MIA PaCa-2 cells than CFPAC-1 cells. CONCLUSIONS DARC expressing in cancer cells inhibits PDAC progression by suppressing STAT3 activation through the inhibition of CXCR2 signaling. Therefore, DARC is a novel prognostic predictor and a potential therapeutic target for PDAC.
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Affiliation(s)
- Shintaro Maeda
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
| | - Satoshi Kuboki
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan.
| | - Hiroyuki Nojima
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
| | - Hiroaki Shimizu
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
| | - Hideyuki Yoshitomi
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
| | - Katsunori Furukawa
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
| | - Masaru Miyazaki
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
| | - Masayuki Ohtsuka
- Department of General Surgery, Graduate School of Medicine, Chiba University, Chiba 260-0856, Japan
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8
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Yang L, Liu Z, Wu R, Yao Q, Gu Z, Liu M. Correlation of C-X-C chemokine receptor 2 upregulation with poor prognosis and recurrence in human glioma. Onco Targets Ther 2015; 8:3203-9. [PMID: 26586954 PMCID: PMC4636088 DOI: 10.2147/ott.s91626] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
C-X-C chemokine receptor 2 (CXCR2), a member of the G-protein-coupled receptor family, is an interleukin-8 receptor and results in the activation of neutrophils. To date, CXCR2 has been identified with many cell events, including inflammation, neovascularization, metastasis, and cell carcinogenesis. This study aimed to investigate alterations in the expression of CXCR2 in patients with brain gliomas and relationships with pathological grades and clinicopathological characteristics. Brain tissue specimens from 60 patients with glioma and 15 patients undergoing surgery for epilepsy (controls) were detected using streptavidin-perosidase immunohistochemistry. Western blotting was used to evaluate CXCR2 protein levels with fresh tissues derived from glioma cases or controls. Correlations between CXCR2 expression and clinicopathological characteristics were analyzed using SPSS software. The results showed high-grade gliomas with high CXCR2 expression as compared with normal tissues. The expression of CXCR2 was significantly related to high grades and recurrence of tumor but not to age or sex. During an in vitro wound healing assay, U251 migration was reduced when the CXCR2-specific inhibitor SB225002 was applied. Our results suggested that the high expression of CXCR2 in gliomas was closely correlated to the degree of malignancy and recurrence and that CXCR2 inhibition decreased the migration of glioma cells. Therefore, CXCR2 may serve as a potential therapeutic target for the recurrence and migration of gliomas.
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Affiliation(s)
- Liu Yang
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Zenghui Liu
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Ronghua Wu
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Qi Yao
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Zhikai Gu
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Mei Liu
- Jiangsu Key Laboratory of Neuroregeneration, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, People's Republic of China
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9
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Immunohistochemical analysis of IL-6, IL-8/CXCR2 axis, Tyr p-STAT-3, and SOCS-3 in lymph nodes from patients with chronic lymphocytic leukemia: correlation between microvascular characteristics and prognostic significance. BIOMED RESEARCH INTERNATIONAL 2014; 2014:251479. [PMID: 24883303 PMCID: PMC4026921 DOI: 10.1155/2014/251479] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 04/04/2014] [Indexed: 02/07/2023]
Abstract
A number of studies have looked into the pathophysiological role of angiogenesis in CLL, but the results have often been inconsistent. We aimed to gain direct insight into the angiogenic process in lymph nodes involved by CLL, focusing on proangiogenic cytokines and microvessel morphometry. The tissue levels of VEGF, Th-2 cytokines IL-6 and IL-8, IL-8 receptor CXCR2, and tyrosine p-STAT-3/SOCS-3 axis modulating cytokine expression were evaluated immunohistochemically in 62 CLL/SLL cases. Microvascular characteristics were evaluated by image analysis. Results were analyzed with regard to clinicopathological characteristics. Proliferation centers (PCs) were less well vascularised compared to non-PC areas. IL-8 and CXCR2 expression was distinctly uncommon as opposed to IL-6, VEGF and SOCS-3, which were detected in the vast majority of cases. The latter two molecule expressions were more pronounced in the PCs in ∼40% of the cases. p-STAT-3 immunoreactivity was recorded in 66.67% of the cases with a predilection for PCs. Microvessel morphometry was unrelated to proangiogenic cytokines, p-STAT-3, SOCS-3, or survival. Microvascular caliber and VEGF expression were higher in Binet stage A, whereasIL-6 expression was higher in stage C. VEGF and p-STAT-3 exerted a favorable effect on progression, which remained significant in multivariate analysis, thereby constituting potential outcome predictors in CLL patients.
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10
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Stofas A, Levidou G, Piperi C, Adamopoulos C, Dalagiorgou G, Bamias A, Karadimou A, Lainakis GA, Papadoukakis S, Stravodimos K, Dimopoulos MA, Patsouris E, Gakiopoulou H, Korkolopoulou P. The role of CXC-chemokine receptor CXCR2 and suppressor of cytokine signaling-3 (SOCS-3) in renal cell carcinoma. BMC Cancer 2014; 14:149. [PMID: 24593195 PMCID: PMC4015755 DOI: 10.1186/1471-2407-14-149] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 02/03/2014] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Chemokine receptor signaling pathways are implicated in the pathobiology of renal cell carcinoma (RCC). However, the clinical relevance of CXCR2 receptor, mediating the effects of all angiogenic chemokines, remains unclear. SOCS (suppressor of cytokine signaling)-3 is a negative regulator of cytokine-driven responses, contributing to interferon-α resistance commonly used to treat advanced RCC with limited information regarding its expression in RCC. METHODS In this study, CXCR2 and SOCS-3 were immunohistochemically investigated in 118 RCC cases in relation to interleukin (IL)-6 and (IL)-8, their downstream transducer phosphorylated (p-)STAT-3, and VEGF expression, being further correlated with microvascular characteristics, clinicopathological features and survival. In 30 cases relationships with hypoxia-inducible factors, i.e. HIF-1a, p53 and NF-κΒ (p65/RelA) were also examined. Validation of immunohistochemistry and further investigation of downstream transducers, p-JAK2 and p-c-Jun were evaluated by Western immunoblotting in 5 cases. RESULTS Both CXCR2 and IL-8 were expressed by the neoplastic cells their levels being interrelated. CXCR2 strongly correlated with the levels of HIF-1a, p53 and p65/RelA in the neoplastic cells. Although SOCS-3 was simultaneously expressed with p-STAT-3, its levels tended to show an inverse relationship with p-JAK-2 and p-c-Jun in Western blots and were positively correlated with HIF-1a, p53 and p65/p65/RelA expression. Neither CXCR2 nor SOCS-3 correlated with the extent of microvascular network. IL-8 and CXCR2 expression was associated with high grade, advanced stage and the presence/number of metastases but only CXCR2 adversely affected survival in univariate analysis. Elevated SOCS-3 expression was associated with progression, the presence/number of metastasis and shortened survival in both univariate and multivariate analysis. CONCLUSIONS Our findings implicate SOCS-3 overexpression in RCC metastasis and biologic aggressiveness advocating its therapeutic targeting. IL-8/CXCR2 signaling also contributes to the metastatic phenotype of RCC cells but appears of lesser prognostic utility. Both CXCR2 and SOCS-3 appear to be related to transcription factors induced under hypoxia.
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Affiliation(s)
- Anastasios Stofas
- First Department of Pathology, Laiko Hospital, University of Athens, Medical School, 75 Mikras Asias street, 11527 Athens, Greece
| | - Georgia Levidou
- First Department of Pathology, Laiko Hospital, University of Athens, Medical School, 75 Mikras Asias street, 11527 Athens, Greece
| | - Christina Piperi
- Department of Biological Chemistry, University of Athens, Medical School, 11527 Athens, Greece
| | - Christos Adamopoulos
- Department of Biological Chemistry, University of Athens, Medical School, 11527 Athens, Greece
| | - Georgia Dalagiorgou
- Department of Biological Chemistry, University of Athens, Medical School, 11527 Athens, Greece
| | - Aristotelis Bamias
- Department of Clinical Therapeutics, Alexandra General Hospital, University of Athens, Medical School, 11528 Athens, Greece
| | - Alexandra Karadimou
- Department of Clinical Therapeutics, Alexandra General Hospital, University of Athens, Medical School, 11528 Athens, Greece
| | - George A Lainakis
- Department of Clinical Therapeutics, Alexandra General Hospital, University of Athens, Medical School, 11528 Athens, Greece
| | - Stefanos Papadoukakis
- Department of Urology, Laiko Hospital, University of Athens, Medical School, 11517 Athens, Greece
| | - Konstantinos Stravodimos
- Department of Urology, Laiko Hospital, University of Athens, Medical School, 11517 Athens, Greece
| | - Meletios-Athanasios Dimopoulos
- Department of Clinical Therapeutics, Alexandra General Hospital, University of Athens, Medical School, 11528 Athens, Greece
| | - Efstratios Patsouris
- First Department of Pathology, Laiko Hospital, University of Athens, Medical School, 75 Mikras Asias street, 11527 Athens, Greece
| | - Hariklia Gakiopoulou
- First Department of Pathology, Laiko Hospital, University of Athens, Medical School, 75 Mikras Asias street, 11527 Athens, Greece
| | - Penelope Korkolopoulou
- First Department of Pathology, Laiko Hospital, University of Athens, Medical School, 75 Mikras Asias street, 11527 Athens, Greece
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