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Gao S, Cai Y, Zhang H, Hu F, Hou L, Xu Q. Long noncoding RNA DLEU1 aggravates pancreatic ductal adenocarcinoma carcinogenesis via the miR-381/CXCR4 axis. J Cell Physiol 2019; 234:6746-6757. [PMID: 30382579 DOI: 10.1002/jcp.27421] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/21/2018] [Indexed: 12/24/2022]
Abstract
Recent evidence has highlighted that long noncoding RNAs (lncRNA) are associated with many diseases, particularly cancer. However, current understanding of the lncRNA deleted in lymphocytic leukemia 1 (DLEU1) in pancreatic ductal adenocarcinoma (PDAC) remains limited. Our studies indicated that the DLEU1 expression level was upregulated in PDAC tissue samples compared with adjacent normal tissue. Moreover, the aberrant overexpression of DLEU1 indicated poor prognosis of patients with PDAC. Loss-of-function experiments revealed that DLEU1 knockdown inhibited the proliferation, migration, and invasion of PDAC cells in vitro and decreased tumor growth in vivo. Bioinformatics analysis predicted that miR-381 potentially targeted the DLEU1 3'-untranslated region (UTR), suggesting an interaction between miR-381 and DLEU1. Furthermore, miR-381 also targeted the chemokine receptor-4 (CXCR4) messenger RNA 3'-UTR, which was validated by luciferase reporter assay. Taken together, our study demonstrated the oncogenic role of DLEU1 in clinical PDAC specimens and cellular experiments, showing the potential involvement of DLEU1/miR-381/CXCR4 pathway. These results provide novel insight into PDAC tumorigenesis.
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Affiliation(s)
- Song Gao
- Department of Oncology, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China
- Tongji University Cancer Center, Shanghai, China
| | - Yunyun Cai
- Department of Integrated Traditional Western Medicine, Minhang Branch of Fudan University of Shanghai Cancer Center, Shanghai, China
| | - Hu Zhang
- Shanghai Geriatric Institute of Chinese Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fei Hu
- Department of Oncology, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China
- Tongji University Cancer Center, Shanghai, China
| | - Lengchen Hou
- Department of Anesthesiology, Shanghai 10th People's Hospital, Tongji University, Shanghai, China
| | - Qing Xu
- Department of Oncology, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China
- Tongji University Cancer Center, Shanghai, China
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Zhang J, Chen J, Wo D, Yan H, Liu P, Ma E, Li L, Zheng L, Chen D, Yu Z, Liang C, Peng J, Ren DN, Zhu W. LRP6 Ectodomain Prevents SDF-1/CXCR4-Induced Breast Cancer Metastasis to Lung. Clin Cancer Res 2019; 25:4832-4845. [PMID: 31010839 DOI: 10.1158/1078-0432.ccr-18-3557] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/04/2019] [Accepted: 04/15/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE Lung metastasis is an important cause of breast cancer-related deaths, in which SDF-1/CXCR4 signaling pathway plays a critical role. Single transmembrane protein LRP6 is viewed as an oncogene via activating the Wnt/β-catenin signaling pathway. Our work aims to investigate the relationship between SDF-1/CXCR4 and LRP6 in breast cancer lung metastasis. EXPERIMENTAL DESIGN We examined the expressions and functions of SDF-1/CXCR4 and LRP6 as well as their relationship in breast cancer in vitro and in vivo. RESULTS LRP6 ectodomain (LRP6N) directly bound to CXCR4 and competitively prevented SDF-1 binding to CXCR4. LRP6N prevented SDF-1/CXCR4-induced metastasis to lung and prolonged survival in mice bearing breast tumors, whereas LRP6 knockdown activated SDF-1/CXCR4 signal transduction and promoted lung metastasis and tumor death. Furthermore, patients with breast cancer with high CXCR4 expression had poor prognosis, which was exacerbated by low LRP6 expression but improved by high LRP6 expression. Interestingly, a secreted LRP6N was found in the serum of mice and humans, which was downregulated by the onset of cancer metastasis in both mice bearing breast cancer as well as in patients with breast cancer. CONCLUSIONS LRP6N might be a promising diagnostic marker for the early detection of breast cancer metastasis as well as an inhibitor of SDF-1/CXCR4-induced breast cancer metastasis. LRP6N also provides an interesting link between Wnt signaling and SDF-1/CXCR4 signaling, the two key pathways involved in cancer development.
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Affiliation(s)
- Jiankang Zhang
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - Jinxiao Chen
- Department of Plastic and Reconstructive Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Da Wo
- Department of Plastic and Reconstructive Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hongwei Yan
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - Peng Liu
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - En Ma
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - Limei Li
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - Liang Zheng
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - Daxin Chen
- Fujian Key Laboratory of Integrative Medicine on Geriatric, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China
| | - Zuoren Yu
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China
| | - Chunli Liang
- Department of Surgery East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun Peng
- Fujian Key Laboratory of Integrative Medicine on Geriatric, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China.
| | - Dan-Ni Ren
- Fujian Key Laboratory of Integrative Medicine on Geriatric, Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, China.
| | - Weidong Zhu
- Clinical and Translational Research Center, Research Institute of Heart Failure Shanghai East Hospital, Key Laboratory of Arrhythmias of Ministry of Education, Tongji University School of Medicine, Shanghai, China.
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miRNA and mRNA Integration Network Construction Reveals Novel Key Regulators in Left-Sided and Right-Sided Colon Adenocarcinoma. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7149296. [PMID: 31073530 PMCID: PMC6470432 DOI: 10.1155/2019/7149296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/21/2019] [Accepted: 03/20/2019] [Indexed: 12/21/2022]
Abstract
Background The distinction between right-sided and left-sided colon adenocarcinoma has recently received considerable. This study aims to identify key MicroRNA (miRNA) and mRNAs in right-sided colon adenocarcinoma (RSCOAD) and left-sided colon adenocarcinoma (LSCOAD) by TCGA integration analysis. Methods The miRNA and mRNA expression profiles of a large group of patients with RSCOAD and LSCOAD were obtained from TCGA. The differentially expressed miRNAs (DEmiRNAs) and mRNAs (DEmRNAs) were identified by TCGA integration analysis. The optimal diagnostic miRNA biomarkers for RSCOAD and LSCOAD were identified by Boruta algorithm. We established classification models to distinguish RSCOAD and LSCOAD. Protein-protein interaction (PPI) network analysis, DEmiRNA-DEmRNA interaction analysis, and functional annotation were performed. The expression of selected DEmiRNAs and DEmRNAs was validated by qRT-PCR. Results A total of 2534 DEmRNAs (940 downregulated and 1594 upregulated mRNAs) and 54 DEmiRNAs (22 downregulated and 32 upregulated miRNAs) between RSCOAD and LSCOAD were identified. The feature selection procedure was to obtain 22 optimal diagnostic miRNAs biomarkers in RSCOAD compared to LSCOAD. The AUC of the random forests model was 0.869 and the specificity and sensitivity of this model were 79% and 84.6%, respectively. Three DEmiRNAs (hsa-miR-224-5p, hsa-miR-155-5p, and hsa-miR-31-5p) and five DEmRNAs (CXCR4, SMAD4, KRAS, FITM2, and PLAGL2) were identified key DEmiRNAs and DEmRNAs in RSCOAD compared to LSCOAD. The qRT-PCR results of CXCR4, FITM2, TFAP2A, ULBP2, hsa-miR-224-5p, and hsa-miR-155-5p were consistent with our integrated analysis. Conclusion A total of three DEmiRNAs (hsa-miR-224-5p, hsa-miR-155-5p, and hsa-miR-31-5p) and five DEmRNAs (CXCR4, SMAD4, KRAS, FITM2, and PLAGL2) may be involved in the pathogenesis of RSCOAD and LSCOAD which may make a contribution for understanding mechanisms and developing therapeutic strategies for RSCOAD and LSCOAD.
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Different somatostatin and CXCR4 chemokine receptor expression in gastroenteropancreatic neuroendocrine neoplasms depending on their origin. Sci Rep 2019; 9:4339. [PMID: 30867449 PMCID: PMC6416272 DOI: 10.1038/s41598-019-39607-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/28/2019] [Indexed: 12/12/2022] Open
Abstract
Somatostatin receptors (SST), especially SST2A, are known for their overexpression in well-differentiated gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN). The chemokine receptor CXCR4, in contrast, is considered to be present mainly in highly proliferative and advanced tumors. However, comprehensive data are still lacking on potential differences in SST or CXCR4 expression pattern in GEP-NEN in dependence on the place of origin. Overall, 412 samples from 165 GEP-NEN patients, comprising both primary tumors (PT) and metastases (MTS), originating from different parts of the gastrointestinal tract or the pancreas were evaluated for SST and CXCR4 expression by means of immunohistochemistry using monoclonal antibodies. SST2A was present in 85% of PT with a high intensity of expression, followed by SST5 (23%), CXCR4 (21%), SST3 (10%), SST1 (9%), and SST4 (4%). PT displayed higher SST2A and chromogranin A (CgA) expression levels than MTS. In both PT and MTS lower SST2A and CgA expression levels were found in tumors originating from the appendix or colon, compared to tumors from other origins. Tumors derived from appendix or colon were associated with significantly worse patient outcomes. Positive correlations were noted between SST2A and CgA as well as between CXCR4 and Ki-67 expression levels. SST2A and CgA negativity of the tumors was significantly associated with poor patient outcomes. All in all, SST2A was the most prominent receptor expressed in the GEP-NEN samples investigated. However, expression levels varied considerably depending on the location of the primary tumor.
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Ferreira F. CXCL12-CXCR4 axis in feline mammary carcinoma. Aging (Albany NY) 2019; 9:2457-2458. [PMID: 29232654 PMCID: PMC5764379 DOI: 10.18632/aging.101344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 12/10/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Fernando Ferreira
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, 1300-477, Portugal
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Fumagalli A, Zarca A, Neves M, Caspar B, Hill SJ, Mayor F, Smit MJ, Marin P. CXCR4/ACKR3 Phosphorylation and Recruitment of Interacting Proteins: Key Mechanisms Regulating Their Functional Status. Mol Pharmacol 2019; 96:794-808. [PMID: 30837297 DOI: 10.1124/mol.118.115360] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/21/2019] [Indexed: 01/14/2023] Open
Abstract
The C-X-C motif chemokine receptor type 4 (CXCR4) and the atypical chemokine receptor 3 (ACKR3/CXCR7) are class A G protein-coupled receptors (GPCRs). Accumulating evidence indicates that GPCR subcellular localization, trafficking, transduction properties, and ultimately their pathophysiological functions are regulated by both interacting proteins and post-translational modifications. This has encouraged the development of novel techniques to characterize the GPCR interactome and to identify residues subjected to post-translational modifications, with a special focus on phosphorylation. This review first describes state-of-the-art methods for the identification of GPCR-interacting proteins and GPCR phosphorylated sites. In addition, we provide an overview of the current knowledge of CXCR4 and ACKR3 post-translational modifications and an exhaustive list of previously identified CXCR4- or ACKR3-interacting proteins. We then describe studies highlighting the importance of the reciprocal influence of CXCR4/ACKR3 interactomes and phosphorylation states. We also discuss their impact on the functional status of each receptor. These studies suggest that deeper knowledge of the CXCR4/ACKR3 interactomes along with their phosphorylation and ubiquitination status would shed new light on their regulation and pathophysiological functions.
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Affiliation(s)
- Amos Fumagalli
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Aurélien Zarca
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Maria Neves
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Birgit Caspar
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Stephen J Hill
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Federico Mayor
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Martine J Smit
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
| | - Philippe Marin
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France (A.F., P.M.); Division of Medicinal Chemistry, Faculty of Science, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands (A.Z., M.J.S.); Departamento de Biología Molecular and Centro de Biología Molecular "Severo Ochoa" (UAM-CSIC), Madrid, Spain (M.N., F.M.); CIBERCV, Instituto de Salud Carlos III, Madrid, Spain (M.N., F.M.); and Division of Physiology, Pharmacology and Neuroscience, Medical School, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom (B.C., S.J.H.)
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Gao C, Xiao G, Piersigilli A, Gou J, Ogunwobi O, Bargonetti J. Context-dependent roles of MDMX (MDM4) and MDM2 in breast cancer proliferation and circulating tumor cells. Breast Cancer Res 2019; 21:5. [PMID: 30642351 PMCID: PMC6332579 DOI: 10.1186/s13058-018-1094-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 12/27/2018] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Many human breast cancers overexpress the E3 ubiquitin ligase MDM2 and its homolog MDMX. Expression of MDM2 and MDMX occurs in estrogen receptor α-positive (ERα+) breast cancer and triple-negative breast cancer (TNBC). There are p53-independent influences of MDM2 and MDMX, and 80% of TNBC express mutant p53 (mtp53). MDM2 drives TNBC circulating tumor cells (CTCs) in mice, but the context-dependent influences of MDM2 and MDMX on different subtypes of breast cancers expressing mtp53 have not been determined. METHODS To assess the context-dependent roles, we carried out MDM2 and MDMX knockdown in orthotopic tumors of TNBC MDA-MB-231 cells expressing mtp53 R280K and MDM2 knockdown in ERα+ T47D cells expressing mtp53 L194F. The corresponding cell proliferation was scored in vitro by growth curves and in vivo by orthotopic tumor volumes. Cell migration was assessed in vitro by wound-healing assays and cell intravasation in vivo by sorting GFP-positive CTCs by flow cytometry. The metastasis gene targets were determined by an RT-PCR array card screen and verified by qRT-PCR and Western blot analysis. RESULTS Knocking down MDMX or MDM2 in MDA-MB-231 cells reduced cell migration and CTC detection, but only MDMX knockdown reduced tumor volumes at early time points. This is the first report of MDMX overexpression in TNBC enhancing the CTC phenotype with correlated upregulation of CXCR4. Experiments were carried out to compare MDM2-knockdown outcomes in nonmetastatic ERα+ T47D cells. The knockdown of MDM2 in ERα+ T47D orthotopic tumors decreased primary tumor volumes, supporting our previous finding that estrogen-activated MDM2 increases cell proliferation. CONCLUSIONS This is the first report showing that the expression of MDM2 in ERα+ breast cancer and TNBC can result in different tumor-promoting outcomes. Both MDMX and MDM2 overexpression in TNBC MDA-MB-231 cells enhanced the CTC phenotype. These data indicate that both MDM2 and MDMX can promote TNBC metastasis and that it is important to consider the context-dependent roles of MDM2 family members in different subtypes of breast cancer.
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Affiliation(s)
- Chong Gao
- Graduate Center Biology Program, Hunter College, City University of New York, Belfer Building, New York, NY, USA
- Department of Biological Sciences, Hunter College and Weill Cornell Medical College, City University of New York, 413 East 69th Street, Belfer Building, New York, NY, 10021, USA
| | - Gu Xiao
- Department of Biological Sciences, Hunter College and Weill Cornell Medical College, City University of New York, 413 East 69th Street, Belfer Building, New York, NY, 10021, USA
| | - Alessandra Piersigilli
- Laboratory of Comparative Pathology, Rockefeller University, Weill Cornell Medicine and Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jiangtao Gou
- Department of Mathematics and Statistics, Hunter College, City University of New York, Belfer Building, New York, NY, USA
| | - Olorunseun Ogunwobi
- Graduate Center Biology Program, Hunter College, City University of New York, Belfer Building, New York, NY, USA
- Department of Biological Sciences, Hunter College and Weill Cornell Medical College, City University of New York, 413 East 69th Street, Belfer Building, New York, NY, 10021, USA
| | - Jill Bargonetti
- Graduate Center Biology Program, Hunter College, City University of New York, Belfer Building, New York, NY, USA.
- Department of Biological Sciences, Hunter College and Weill Cornell Medical College, City University of New York, 413 East 69th Street, Belfer Building, New York, NY, 10021, USA.
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Wang J, Zhao B, Yang S, Wang D, Xu H, Teng M. Scutellarin enhances osteoblast proliferation and function via NF-κB-mediated CXCR4 induction. Gene 2018; 676:29-36. [DOI: 10.1016/j.gene.2018.06.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/11/2018] [Accepted: 06/20/2018] [Indexed: 02/06/2023]
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Janssens R, Struyf S, Proost P. Pathological roles of the homeostatic chemokine CXCL12. Cytokine Growth Factor Rev 2018; 44:51-68. [PMID: 30396776 DOI: 10.1016/j.cytogfr.2018.10.004] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 10/19/2018] [Indexed: 12/12/2022]
Abstract
CXCL12 is a CXC chemokine that traditionally has been classified as a homeostatic chemokine. It contributes to physiological processes such as embryogenesis, hematopoiesis and angiogenesis. In contrast to these homeostatic functions, increased expression of CXCL12 in general, or of a specific CXCL12 splicing variant has been demonstrated in various pathologies. In addition to this increased or differential transcription of CXCL12, also upregulation of its receptors CXC chemokine receptor 4 (CXCR4) and atypical chemokine receptor 3 (ACKR3) contributes to the onset or progression of diseases. Moreover, posttranslational modification of CXCL12 during disease progression, through interaction with locally produced molecules or enzymes, also affects CXCL12 activity, adding further complexity. As CXCL12, CXCR4 and ACKR3 are broadly expressed, the number of pathologies wherein CXCL12 is involved is growing. In this review, the role of the CXCL12/CXCR4/ACKR3 axis will be discussed for the most prevalent pathologies. Administration of CXCL12-neutralizing antibodies or small-molecule antagonists of CXCR4 or ACKR3 delays disease onset or prevents disease progression in cancer, viral infections, inflammatory bowel diseases, rheumatoid arthritis and osteoarthritis, asthma and acute lung injury, amyotrophic lateral sclerosis and WHIM syndrome. On the other hand, CXCL12 has protective properties in Alzheimer's disease and multiple sclerosis, has a beneficial role in wound healing and has crucial homeostatic properties in general.
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Affiliation(s)
- Rik Janssens
- KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, B-3000 Leuven, Belgium
| | - Sofie Struyf
- KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, B-3000 Leuven, Belgium
| | - Paul Proost
- KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Laboratory of Molecular Immunology, B-3000 Leuven, Belgium.
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Choudhary G, Langen KJ, Galldiks N, McConathy J. Investigational PET tracers for high-grade gliomas. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2018; 62:281-294. [PMID: 29869489 DOI: 10.23736/s1824-4785.18.03105-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
High-grade gliomas (HGGs) are the most common primary malignant tumors of the brain, with glioblastoma (GBM) constituting over 50% of all the gliomas in adults. The disease carries very high mortality, and even with optimal treatment, the median survival is 2-5 years for anaplastic tumors and 1-2 years for GBMs. Neuroimaging is critical to managing patients with HGG for diagnosis, treatment planning, response assessment, and detecting recurrent disease. Magnetic resonance imaging (MRI) is the cornerstone of imaging in neuro-oncology, but molecular imaging with positron emission tomography (PET) can overcome some of the inherent limitations of MRI. Additionally, PET has the potential to target metabolic and molecular alterations in HGGs relevant to prognosis and therapy that cannot be assessed with anatomic imaging. Many classes of PET tracers have been evaluated in HGG including agents that target cell membrane biosynthesis, protein synthesis, amino acid transport, DNA synthesis, the tricarboxylic acid (TCA) cycle, hypoxic environments, cell surface receptors, blood flow, vascular endothelial growth factor (VEGF), epidermal growth factor (EGFR), and the 18-kDa translocator protein (TSPO), among others. This chapter will provide an overview of PET tracers for HGG that have been evaluated in human subjects with a focus on tracers that are not yet in widespread use for neuro-oncology.
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Affiliation(s)
- Gagandeep Choudhary
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karl-Josef Langen
- Institute of Neuroscience and Medicine (INM-3, -4), Jülich Research Center, Jülich, Germany.,Department of Nuclear Medicine, RWTH Aachen University Hospital, Aachen, Germany
| | - Norbert Galldiks
- Institute of Neuroscience and Medicine (INM-3, -4), Jülich Research Center, Jülich, Germany.,Department of Neurology, University of Cologne, Cologne, Germany.,Center of Integrated Oncology (CIO), Universities of Cologne and Bonn, Cologne, Germany
| | - Jonathan McConathy
- Department of Radiology, University of Alabama at Birmingham, Birmingham, AL, USA -
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Berg KA, Clarke WP. Making Sense of Pharmacology: Inverse Agonism and Functional Selectivity. Int J Neuropsychopharmacol 2018; 21:962-977. [PMID: 30085126 PMCID: PMC6165953 DOI: 10.1093/ijnp/pyy071] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/04/2018] [Indexed: 12/12/2022] Open
Abstract
Constitutive receptor activity/inverse agonism and functional selectivity/biased agonism are 2 concepts in contemporary pharmacology that have major implications for the use of drugs in medicine and research as well as for the processes of new drug development. Traditional receptor theory postulated that receptors in a population are quiescent unless activated by a ligand. Within this framework ligands could act as agonists with various degrees of intrinsic efficacy, or as antagonists with zero intrinsic efficacy. We now know that receptors can be active without an activating ligand and thus display "constitutive" activity. As a result, a new class of ligand was discovered that can reduce the constitutive activity of a receptor. These ligands produce the opposite effect of an agonist and are called inverse agonists. The second topic discussed is functional selectivity, also commonly referred to as biased agonism. Traditional receptor theory also posited that intrinsic efficacy is a single drug property independent of the system in which the drug acts. However, we now know that a drug, acting at a single receptor subtype, can have multiple intrinsic efficacies that differ depending on which of the multiple responses coupled to a receptor is measured. Thus, a drug can be simultaneously an agonist, an antagonist, and an inverse agonist acting at the same receptor. This means that drugs have an additional level of selectivity (signaling selectivity or "functional selectivity") beyond the traditional receptor selectivity. Both inverse agonism and functional selectivity need to be considered when drugs are used as medicines or as research tools.
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Affiliation(s)
- Kelly A Berg
- Department of Pharmacology, University of Texas Health, San Antonio, Texas
| | - William P Clarke
- Department of Pharmacology, University of Texas Health, San Antonio, Texas,Correspondence: William P. Clarke, PhD, Department of Pharmacology, Mail Stop 7764, UT Health at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229 ()
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112
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Stumpf C, Kaemmerer D, Neubauer E, Sänger J, Schulz S, Lupp A. Somatostatin and CXCR4 expression patterns in adenocarcinoma and squamous cell carcinoma of the lung relative to small cell lung cancer. J Cancer Res Clin Oncol 2018; 144:1921-1932. [PMID: 30076481 DOI: 10.1007/s00432-018-2722-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 07/30/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE Lung cancer is highly prevalent and has an especially poor prognosis. Thus, new diagnostic and therapeutic targets are necessary. Two potential targets are somatostatin receptors (SST), which are overexpressed in well-differentiated neuroendocrine neoplasms, and the chemokine receptor CXCR4, which is present mainly in highly proliferative and advanced tumours. Although their expression is relatively well characterized in small cell lung cancer (SCLC), in non-small cell lung cancer (NSCLC), data on SST and CXCR4 expression are scarce and contradictory. METHODS We comparatively evaluated 83 tumour samples from a total of 57 lung cancer patients, of which 22 had adenocarcinoma (ADC), 21 had squamous cell carcinoma (SQC), and 15 had SCLC. Samples were evaluated for SST and CXCR4 expression using immunohistochemistry with well-characterized rabbit monoclonal antibodies. RESULTS In the samples investigated, the most prominently expressed receptors were CXCR4 and SST5. Specifically, CXCR4 was detected with high expression intensity in more than 60% of ADC samples, about 90% of SQC, and 100% of SCLC. SST5 was present in about 75% of ADC and SQC samples and in more than 90% of SCLC. Although not noticeably expressed in ADC and SQC samples, SST2 was detected in 50% of SCLC cases, with a subset of patients displaying exceptionally high expression. The comparison of the three tumour entities revealed that SCLC samples had higher SST2, SST5, and CXCR4 expression, but lower SST3 and SST1 relative to ADC or SQC samples. CONCLUSION CXCR4 may be a promising target for diagnostics and therapy in both SCLC and NSCLC.
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Affiliation(s)
- Claudia Stumpf
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Daniel Kaemmerer
- Department of General and Visceral Surgery, Zentralklinik Bad Berka, Bad Berka, Germany
| | - Elisa Neubauer
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Jörg Sänger
- Institute of Pathology and Cytology Bad Berka, Bad Berka, Germany
| | - Stefan Schulz
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany.
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113
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Marques CS, Santos AR, Gameiro A, Correia J, Ferreira F. CXCR4 and its ligand CXCL12 display opposite expression profiles in feline mammary metastatic disease, with the exception of HER2-overexpressing tumors. BMC Cancer 2018; 18:741. [PMID: 30012106 PMCID: PMC6048851 DOI: 10.1186/s12885-018-4650-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 06/29/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The receptor CXCR4 and its ligand CXCL12 play crucial roles in breast cancer. Despite the fact that the spontaneous feline mammary carcinoma (FMC) is considered a suitable model for breast cancer studies, the importance of the CXCR4/CXCL12 axis in FMC is completely unknown. Therefore, this work aims to elucidate the role of CXCR4 and its ligand in the progression of FMC and metastatic disease. METHODS CXCR4 and CXCL12 expression was analyzed by immunohistochemistry and immunofluorescence on primary tumors (PT), regional and distant metastases of female cats with mammary carcinoma and correlated with serum CXCL12 levels, tumor molecular subtypes and clinicopathological features. RESULTS CXCR4 was more expressed in PT than in metastases (p = 0.0067), whereas CXCL12 was highly expressed in metastatic lesions located in liver and lung (p < 0.0001), as reported for human breast cancer. Moreover, cats with CXCR4 positive PT exhibited significantly lower serum CXCL12 levels than cats with CXCR4 negative mammary carcinomas (p = 0.0324). At metastatic lesions, HER2-overexpressing tumors presented higher CXCR4 expression than the other molecular tumor subtypes (p = 0.012) and significant differences in overall (p = 0.0147) and disease-free survival (p = 0.0279) curves between the cats with CXCL12 positive and CXCL12 negative tumors were found. Indeed, CXCL12 negative PT were associated with unfavorable prognosis in cats with HER2-overexpressing tumors. CONCLUSIONS This work exposes part of the complex interaction between CXCR4 and CXCL12 in PT, but also in metastases of a breast cancer model. These findings could uncover novel therapeutic tools to be used in cats and humans.
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Affiliation(s)
- Cláudia S. Marques
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - Ana Rita Santos
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - Andreia Gameiro
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - Jorge Correia
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - Fernando Ferreira
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
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114
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He W, Yang T, Gong XH, Qin RZ, Zhang XD, Liu WD. Targeting CXC motif chemokine receptor 4 inhibits the proliferation, migration and angiogenesis of lung cancer cells. Oncol Lett 2018; 16:3976-3982. [PMID: 30128017 DOI: 10.3892/ol.2018.9076] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 04/20/2018] [Indexed: 12/13/2022] Open
Abstract
An increasing volume of data indicates that disrupting the interaction between CXC motif chemokine receptor 4 (CXCR4) and its specific ligand, CXC motif chemokine 12 (CXCL12), may reduce tumor growth and metastasis. However, the translation from bench to bedside must be performed with extreme caution, as the CXCR4/CXCL12 axis is crucial for the normal development and maintenance of tissues and organs. In the present study, Cell Counting Kit-8 and Transwell migration assays were used to detect in vitro proliferation and chemotaxis of CXCR4-expressing A549 cells, a cell strain originating from human non-small-cell lung cancer (NSCLC), with or without the presence of AMD3100, a small-molecule inhibitor specific to CXCR4 signaling. In a xenograft model established by injecting nude mice with A549 cells, tumor growth, CXCR4 expression and microvessel density (MVD) in the tumor mass were determined through tumor size measurements and immunohistochemical staining following intraperitoneal administration of AMD3100 or vehicle. The results demonstrated that CXCR4 blockade inhibited the proliferation of A549 cells and their migration towards CXCL12 in vitro. Tumor growth, CXCR4 expression and MVD were markedly reduced in nude mice treated with AMD3100 compared with mice treated with the vehicle. In conclusion, the present data demonstrated that CXCR4 targeting impaired NSCLC cell growth, angiogenesis and metastatic spread, indicating that it may represent a novel treatment strategy for NSCLC.
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Affiliation(s)
- Wei He
- Department of Medical Oncology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 511447, P.R. China
| | - Tong Yang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 511447, P.R. China
| | - Xin-Hua Gong
- Department of General Medicine, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 511447, P.R. China
| | - Ru-Zhai Qin
- Department of Medical Oncology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 511447, P.R. China
| | - Xiao-Dong Zhang
- Department of Medical Oncology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 511447, P.R. China
| | - Wen-Dan Liu
- Department of Medical Oncology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 511447, P.R. China
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Zhu Y, Tang L, Zhao S, Sun B, Cheng L, Tang Y, Luo Z, Lin Z, Zhu J, Zhu W, Zhao R, Lu B, Long H. CXCR4-mediated osteosarcoma growth and pulmonary metastasis is suppressed by MicroRNA-613. Cancer Sci 2018; 109:2412-2422. [PMID: 29845707 PMCID: PMC6113448 DOI: 10.1111/cas.13653] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 05/22/2018] [Accepted: 05/25/2018] [Indexed: 12/15/2022] Open
Abstract
Osteosarcoma is the most common primary bone malignancy. Recently, studies showed chemokine receptor 4 (CXCR4) played a critical role in osteosarcoma. However, the regulation of CXCR4 is not fully understood. microRNAs are short, non‐coding RNAs that play an important roles in post‐transcriptional regulation of gene expression in a variety of diseases including osteosarcoma. miR‐613 is a newly discovered miRNA and has been reported to function as a tumor suppressor in many cancers. In this study, we confirmed that both Stromal Cell‐Derived Factor (SDF‐1) and CXCR4 could be prognostic markers for osteosarcoma. Meanwhile this study found that SDF‐1/CXCR4 pathway regulated osteosarcoma cells proliferation, migration and reduced apoptosis. Besides, we demonstrated that miR‐613 was significantly downregulated in osteosarcoma patients. Elevated expression of miR‐613 directly suppressed CXCR4 expression and then decreased the proliferation, migration and induced apoptosis of osteosarcoma cells. Moreover, our study found that CXCR4 promoted the development of lung metastases and inhibition of CXCR4 by miR‐613 reduced lung metastases. These data indicated that CXCR4 mediated osteosarcoma cell growth and lung metastases and this effect can be suppressed by miR‐613 through directly downregulating CXCR4.
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Affiliation(s)
- Yong Zhu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Lanhua Tang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Shushan Zhao
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Buhua Sun
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Liang Cheng
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yifu Tang
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zhongwei Luo
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zhangyuan Lin
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Jianxi Zhu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Weihong Zhu
- Department of Orthopedic Surgery, The First People's hospital of Chenzhou, Chenzhou, China
| | - Ruibo Zhao
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Bangbao Lu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Haitao Long
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
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Gao PT, Ding GY, Yang X, Dong RZ, Hu B, Zhu XD, Cai JB, Ji Y, Shi GM, Shen YH, Zhou J, Fan J, Sun HC, Huang C. Invasive potential of hepatocellular carcinoma is enhanced by loss of selenium-binding protein 1 and subsequent upregulation of CXCR4. Am J Cancer Res 2018; 8:1040-1049. [PMID: 30034941 PMCID: PMC6048402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 05/08/2018] [Indexed: 06/08/2023] Open
Abstract
Decreased selenium-binding protein 1 (SBP1) is associated with increased invasion and poor prognosis of hepatocellular carcinoma (HCC). However, the underlying mechanism remains unknown. To unravel this mechanism, HCC cells expressing SBP1 were constructed and the impact on migration, invasion, and epithelial-mesenchymal transition (EMT) was evaluated. SBP1 expression reduced HCC cell migration and invasion by inhibiting EMT. Gene expression profiles of control and SBP1 expressing HCC cells revealed 186 differentially expressed genes, of which fibroblast growth factor 5, vascular endothelial growth factor receptor 1, and C-X-C motif chemokine receptor 4 (CXCR4) showed the greatest differences. CXCR4 expression was inhibited by SBP1 and restored the migration and invasion ability of HCC cells through activation of AKT signaling. Tumor samples from 200 HCC patients supported our in vitro findings and revealed an inverse correlation between SBP1 and CXCR4 expression. Patients with low SBP1 and high CXCR4 expression had the poorest prognosis and survival rate. Our results suggest that downregulation of SBP1 induces increased CXCR4 expression and results in EMT of HCC cells. Together, SBP1 and CXCR4 are promising potential biomarkers and therapeutic targets for HCC patients.
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Affiliation(s)
- Ping-Ting Gao
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
- Endoscopy Center and Endoscopy Research Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Guang-Yu Ding
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Xuan Yang
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Rui-Zhao Dong
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Bo Hu
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Xiao-Dong Zhu
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Jia-Bin Cai
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Yuan Ji
- Department of Pathology, Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Guo-Ming Shi
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Ying-Hao Shen
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Jian Zhou
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Jia Fan
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Hui-Chuan Sun
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
| | - Cheng Huang
- Department of Liver Surgery & Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan UniversityShanghai, China
- Key Laboratory for Carcinogenesis and Cancer Invasion, Chinese Ministry of EducationShanghai, China
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Wang J, Huang Y, Zhang J, Xing B, Xuan W, Wang H, Huang H, Yang J, Tang J. High co-expression of the SDF1/CXCR4 axis in hepatocarcinoma cells is regulated by AnnexinA7 in vitro and in vivo. Cell Commun Signal 2018; 16:22. [PMID: 29783989 PMCID: PMC5963093 DOI: 10.1186/s12964-018-0234-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/15/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND SDF1/CXCR4 and AnnexinA7 play important roles in many physiological and pathological conditions, but the molecular association between them in cancer cells has not been studied thus far. METHODS The expression changes of SDF1/CXCR4 were detected by gene transcriptome sequencing, qRT-PCR, Western blotting, cytoimmunofluorescence and immunohistochemistry in mouse hepatocarcinoma F/P cells, AnnexinA7 downregulated expression F (FA7DOWN) cells, AnnexinA7 overexpression P (PA7UP) cells, AnnexinA7 unrelated sequence F (FSHUS) cells, empty vector P (PNCEV) cells and normal liver cells in vitro and in vivo. RESULTS SDF1 and CXCR4 were co-expressed in hepatocarcinoma cells. SDF1 was localized mainly in the cytoplasm of cells, while CXCR4 was mainly localized in the cell membrane. Both in vitro and in vivo, expression levels of SDF1/CXCR4 in F and P cells were higher than in normal liver cells, and expression levels of SDF1/CXCR4 in F cells with high lymphatic metastatic potential were higher than those in P cells with low lymphatic metastatic potential. Expression of SDF1 was higher than that of CXCR4 in P cells and normal liver cells, while expression of CXCR4 was higher than that of SDF1 in F cells. Expression levels of SDF1/CXCR4 were completely consistent with AnnexinA7 regulation. After the AnnexinA7 gene was downregulated or upregulated, expression levels of SDF1/CXCR4 in FA7DOWN/PA7UP cells were lower or higher than those in FSHUS/PNCEV cells. Furthermore, CXCR4 was more sensitively modulated by AnnexinA7 regulation than SDF1. CONCLUSIONS High co-expression of SDF1/CXCR4 is a molecular characteristic of hepatocarcinoma cells, especially those with high lymphatic metastatic potential. AnnexinA7 positively regulates expression levels of SDF1/CXCR4, in particular CXCR4, and AnnexinA7 is a functional regulator of SDF1/CXCR4.
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Affiliation(s)
- Jingwen Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Yuhong Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Jun Zhang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Boyi Xing
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Wei Xuan
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Honghai Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - He Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | | | - Jianwu Tang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China.
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Lange F, Kaemmerer D, Behnke-Mursch J, Brück W, Schulz S, Lupp A. Differential somatostatin, CXCR4 chemokine and endothelin A receptor expression in WHO grade I-IV astrocytic brain tumors. J Cancer Res Clin Oncol 2018; 144:1227-1237. [PMID: 29696364 DOI: 10.1007/s00432-018-2645-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 04/18/2018] [Indexed: 12/13/2022]
Abstract
PURPOSE Glioblastomas represent the most common primary malignant tumor of the nervous system and the most frequent type of astrocytic tumors. Despite improved therapeutic options, prognosis has remained exceptionally poor over the last two decades. Therefore, new treatment approaches are urgently needed. An overexpression of somatostatin (SST) as well as chemokine CXCR4 and endothelin A (ETA) receptors has been shown for many types of cancer. Respective expression data for astrocytic brain tumors, however, are scarce and contradictory. METHODS SST subtype, CXCR4 and ETA expression was comparatively evaluated in a total of 57 grade I-IV astrocytic tumor samples by immunohistochemistry using well-characterized monoclonal antibodies. RESULTS Overall, receptor expression on the tumor cells was only very low. SST5 was the most prominently expressed receptor, followed by SST3, ETA, SST2 and CXCR4. In contrast, tumor capillaries displayed strong SST2, SST3, SST5, CXCR4 and ETA expression. Presence of SST5, CXCR4 and ETA on tumor cells and of SST3, CXCR4 and ETA on microvessels gradually increased from grade II to grade IV tumors. Ki-67 values correlated significantly with CXCR4 expression on tumor cells and with vascular SST3, CXCR4 or ETA positivity. SST5 or CXCR4 positivity of tumor cells and vascular SST3 or CXCR4 expression negatively correlated with patient outcome. CONCLUSIONS Though having some prognostic value, SST, CXCR4 or ETA expression on astrocytic tumor cells is clearly of no therapeutic relevance. Indirect targeting of these highly vascularized tumors via SST3, SST5, CXCR4 or ETA on the microvessels, in contrast, may represent a promising additional therapeutic strategy.
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Affiliation(s)
- Franziska Lange
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Daniel Kaemmerer
- Department of General and Visceral Surgery, Zentralklinik Bad Berka, Bad Berka, Germany
| | | | - Wolfgang Brück
- Institute of Pathology, University Medical Centre Göttingen, University of Göttingen, Göttingen, Germany
| | - Stefan Schulz
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, 07747, Jena, Germany.
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Deng L, Zheng W, Dong X, Liu J, Zhu C, Lu D, Zhang J, Song L, Wang Y, Deng D. Chemokine receptor CXCR7 is an independent prognostic biomarker in glioblastoma. Cancer Biomark 2018; 20:1-6. [PMID: 28759950 DOI: 10.3233/cbm-151430] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Glioblastoma (GBM) is the most common and most fatal primary brain cancer in adults. Due to the complex nature of GBM, its pathogenesis still remain unclear. Accumulating evidence suggest that chemokine receptor CXCR7 contribute to the development of various types of tumors. OBJECTIVE We aim to examine the prognostic significance of CXCR7 in GBM. METHODS CXCR7 were first detected by Immunohistochemistry. The association between CXCR7 and overall survival (OS) were examined. Moreover, multivariate analyses were conducted to evaluate the prognostic factors in GBM. RESULTS Of all 146 GBM patients recruited, 77 were in the high-expression subgroup, the rest 69 were in low-expression subgroup. There are no differences between these two subgroups in terms of age, gender, family history of cancer, extent of surgery, chemotherapy, radiotherapy, KPS, MGMT methylation status and tumor size. However, high CXCR7 expression was robustly correlated with poor OS in GBM. Multivariate analysis confirmed age, KPS scores, chemotherapy, IDH1 mutation, MGMT methylation and CXCR7 were independent factors in survival prognosis. CONCLUSIONS CXCR7 may involve in the clinical GBM progression, and CXCR7 could be a valuable prognostic marker in the treatment of GBM.
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Affiliation(s)
- Lina Deng
- Department of Surgery, Daqing Longnan Hospital, Daqing, Heilongjiang, China.,Department of Surgery, Daqing Longnan Hospital, Daqing, Heilongjiang, China
| | - Wenxin Zheng
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China.,Department of Surgery, Daqing Longnan Hospital, Daqing, Heilongjiang, China
| | - Xueshuang Dong
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Jianghua Liu
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Chunyu Zhu
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Dan Lu
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Jin Zhang
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Laijun Song
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Yuchao Wang
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
| | - Dan Deng
- Department of Neurology, Daqing Oilfield General Hospital, Daqing, Heilongjiang, China
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Zhang M, Zhang L, Cui M, Ye W, Zhang P, Zhou S, Wang J. miR-302b inhibits cancer-related inflammation by targeting ERBB4, IRF2 and CXCR4 in esophageal cancer. Oncotarget 2018; 8:49053-49063. [PMID: 28467773 PMCID: PMC5564748 DOI: 10.18632/oncotarget.17041] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 04/04/2017] [Indexed: 01/23/2023] Open
Abstract
Cancer related inflammation (CRI) plays an important role in the development of esophageal cancer (EC), and the target gene analysis shows that miR-302b potential target genes closely correlated to CRI important signaling pathways. The present study was to evaluate the inhibition of miR-302b on CRI in EC and its mechanism. We found that the expression levels of miR-302b in EC cells were lower than that in Het-1A cells, while TE11 with the lowest expression and OE33 with the highest. Inflammatory stimuli at 48 h significantly reduced expression of miR-302b in EC cells, but had no effect in Het-1A. After up-regulation of miR-302b in TE11 and down-regulation of miR-302b in OE33, it was found that miR-302b reduced CRI key transcription factors and representative cytokines. Then, over-expressed of miR-302b significantly altered potential target genes protein expressions and there was a negative correlation between miR-302b and potential target genes protein expressions (ERBB4, IRF2 and CXCR4) in EC tissues. Then reporter gene analysis revealed that miR-302b post-transcriptionally regulated expression of target genes by specific area of 3′-UTR. Transfected by target genes shRNA plasmids together could get the same effects of miR-302b on protein expression of CRI key transcription factors. Furthermore, miR-302b was able to repress tumor growth and transcription factors protein expression in vivo. These finding suggests that miR-302b inhibits key transcription factors and cytokines by targeting ERBB4, IRF2 and CXCR4, implicating its role in the inhibition of CRI in EC.
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Affiliation(s)
- Mingxin Zhang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
| | - Lingmin Zhang
- Department of Anesthesiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, China
| | - Manli Cui
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
| | - Wenguang Ye
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
| | - Pengjiang Zhang
- Second Department of Cadre's Ward, Lanzhou General Hospital of Chinese PLA, Lanzhou 730050, China
| | - Suna Zhou
- Department of Radiotherapy, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
| | - Jingjie Wang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, Shaanxi Province, China
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Lüke F, Blazquez R, Yamaci RF, Lu X, Pregler B, Hannus S, Menhart K, Hellwig D, Wester HJ, Kropf S, Heudobler D, Grosse J, Moosbauer J, Hutterer M, Hau P, Riemenschneider MJ, Bayerlová M, Bleckmann A, Polzer B, Beißbarth T, Klein CA, Pukrop T. Isolated metastasis of an EGFR-L858R-mutated NSCLC of the meninges: the potential impact of CXCL12/CXCR4 axis in EGFR mut NSCLC in diagnosis, follow-up and treatment. Oncotarget 2018; 9:18844-18857. [PMID: 29721166 PMCID: PMC5922360 DOI: 10.18632/oncotarget.24787] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/27/2018] [Indexed: 11/25/2022] Open
Abstract
Brain and leptomeningeal metastasis (LMM) of non-small cell lung cancer is still associated with poor prognosis. Moreover, the current diagnostic standard for LMM often yields false negative results and the scientific progress in this field is still unsatisfying. We present a case of a 71-year old patient with an isolated LMM. While standard diagnostics could only diagnose a cancer of unknown primary, the use of [68Ga]-Pentixafor-PET/CT (CXCR4-PET/CT, a radiotracer targeting CXCR4) and a liquid biopsy of the cerebrospinal fluid revealed the primary NSCLC. The detection of L858R-EGFR, a common driver mutation in NSCLC, enabled us to treat the patient with Afatinib and monitor treatment using [68Ga]-Pentixafor PET/CT. To estimate the impact of CXCR4 signaling and its ligands in NSCLC brain metastasis we looked at their expression and correlation with EGFR mutations in a primary and brain metastasis data set and investigated the previously described binding of extracellular ubiquitin to CXCR4. In conclusion, we describe a novel approach to improve diagnostics towards LMM and underline the impact of the CXCL12/CXCR4 axis in brain metastasis in a subset of NSCLC patients. We cannot confirm a correlation of CXCR4 expression with EGFR mutations or the binding of extracellular ubiquitin as previously reported.
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Affiliation(s)
- Florian Lüke
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Raquel Blazquez
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Rezan Fahrioglu Yamaci
- Chair of Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany
| | - Xin Lu
- Chair of Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany
| | - Benedikt Pregler
- Institute of Radiology, University Hospital Regensburg, Regensburg, Germany
| | | | - Karin Menhart
- Department of Nuclear Medicine, University Hospital Regensburg, Regensburg, Germany
| | - Dirk Hellwig
- Department of Nuclear Medicine, University Hospital Regensburg, Regensburg, Germany
| | - Hans-Jürgen Wester
- Chair of Pharmaceutical Radiochemistry, Technische Universität München, Munich, Germany
| | | | - Daniel Heudobler
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Jirka Grosse
- Department of Nuclear Medicine, University Hospital Regensburg, Regensburg, Germany
| | - Jutta Moosbauer
- Department of Nuclear Medicine, University Hospital Regensburg, Regensburg, Germany
| | - Markus Hutterer
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany.,Wilhelm Sander-Neurooncology Unit, University Hospital Regensburg, Regensburg, Germany.,Department of Neurology 1, NeuroMed Campus, Kepler University Hospital Linz, Linz, Austria
| | - Peter Hau
- Department of Neurology, University Hospital Regensburg, Regensburg, Germany.,Wilhelm Sander-Neurooncology Unit, University Hospital Regensburg, Regensburg, Germany
| | | | - Michaela Bayerlová
- University Medical Center Göttingen, Department of Medical Statistics, Göttingen, Germany
| | - Annalen Bleckmann
- University Medical Center Göttingen, Department of Medical Statistics, Göttingen, Germany.,University Medical Center Göttingen, Department of Hematology and Oncology, Göttingen, Germany
| | - Bernhard Polzer
- Division Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
| | - Tim Beißbarth
- University Medical Center Göttingen, Department of Medical Statistics, Göttingen, Germany
| | - Christoph A Klein
- Chair of Experimental Medicine and Therapy Research, University of Regensburg, Regensburg, Germany.,Division Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
| | - Tobias Pukrop
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
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Unzueta U, Cespedes MV, Sala R, Alamo P, Sánchez-Chardi A, Pesarrodona M, Sánchez-García L, Cano-Garrido O, Villaverde A, Vázquez E, Mangues R, Seras-Franzoso J. Release of targeted protein nanoparticles from functional bacterial amyloids: A death star-like approach. J Control Release 2018; 279:29-39. [PMID: 29641987 DOI: 10.1016/j.jconrel.2018.04.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 01/07/2023]
Abstract
Sustained release of drug delivery systems (DDS) has the capacity to increase cancer treatment efficiency in terms of drug dosage reduction and subsequent decrease of deleterious side effects. In this regard, many biomaterials are being investigated but none offers morphometric and functional plasticity and versatility comparable to protein-based nanoparticles (pNPs). Here we describe a new DDS by which pNPs are fabricated as bacterial inclusion bodies (IB), that can be easily isolated, subcutaneously injected and used as reservoirs for the sustained release of targeted pNPs. Our approach combines the high performance of pNP, regarding specific cell targeting and biodistribution with the IB supramolecular organization, stability and cost effectiveness. This renders a platform able to provide a sustained source of CXCR4-targeted pNPs that selectively accumulate in tumor cells in a CXCR4+ colorectal cancer xenograft model. In addition, the proposed system could be potentially adapted to any other protein construct offering a plethora of possible new therapeutic applications in nanomedicine.
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Affiliation(s)
- Ugutz Unzueta
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain
| | - María Virtudes Cespedes
- CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain; Biomedical Research Institute Sant Pau (IIB-SantPau), Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
| | - Rita Sala
- CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain; Biomedical Research Institute Sant Pau (IIB-SantPau), Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
| | - Patricia Alamo
- CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain; Biomedical Research Institute Sant Pau (IIB-SantPau), Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain
| | | | - Mireia Pesarrodona
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain
| | - Laura Sánchez-García
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain
| | - Olivia Cano-Garrido
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain
| | - Antonio Villaverde
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain
| | - Esther Vázquez
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain.
| | - Ramón Mangues
- CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain; Biomedical Research Institute Sant Pau (IIB-SantPau), Josep Carreras Research Institute, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain.
| | - Joaquin Seras-Franzoso
- Institute of Biotechnology and Biomedicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; Department of Genetics and Microbiology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain; CIBER Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Bellaterra, 08193 Barcelona, Spain.
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123
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Long X, Li L, Zhou Q, Wang H, Zou D, Wang D, Lou M, Nian W. Long non-coding RNA LSINCT5 promotes ovarian cancer cell proliferation, migration and invasion by disrupting the CXCL12/CXCR4 signalling axis. Oncol Lett 2018; 15:7200-7206. [PMID: 29755595 PMCID: PMC5943677 DOI: 10.3892/ol.2018.8241] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 02/28/2018] [Indexed: 12/18/2022] Open
Abstract
Long stress-induced noncoding transcript 5 (LSINCT5) is a member of the LSINCT family, members of which are expressed during stress-induced cell formation and have also been reported to promote cancer progression. In the present study, the association between LSINCT5 expression and clinical significance was investigated and the biological function of LSINCT5 in epithelial ovarian cancer (EOC) was explored. LSINCT5 expression was examined in EOC tissues by reverse transcription-quantitative polymerase chain reaction and its association with clinicopathological factors was analysed. Cell proliferation, migration and invasion tests were performed to observe the role of LSINCT5 in human ovarian cancer cell lines in vitro. The negative control (NC) and siLSINCT5 SKOV3 cells were treated with chemokine ligand 12 (CXCL12) and their proliferation, migration and invasion activities were examined. LSINCT5 was overexpressed in EOC compared with normal ovarian tissue. LSINCT5 expression was significantly associated with the International Federation of Gynecologists and Obstetricians cancer stage and the presence of lymphatic metastases. Silencing LSINCT5 significantly reduced the expression of chemokine receptor 4 (CXCR4) and inhibited SKOV3 cell proliferation, migration and invasion, however the CXCL12 expression level had no significant change. When NC and siLSINCT5-SKOV3 cells were treated with CXCL12, the proliferation and invasion ability were significantly enhanced. The migration ability of the siLSINCT5-SKOV3 cells was also significantly enhanced. The present study indicated that LSINCT5 serves an important role in ovarian cancer metastasis by regulating the CXCL12/CXCR4 signalling axis, suggesting that this pathway may be a potential target for the treatment of patients with EOC.
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Affiliation(s)
- Xingtao Long
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China.,Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Li Li
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Qi Zhou
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Haixia Wang
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Dongling Zou
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Dong Wang
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, P.R. China
| | - Meng Lou
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Weiqi Nian
- Key Laboratory of Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing 400030, P.R. China
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Claes S, D'huys T, Van Hout A, Schols D, Van Loy T. A Kinetic Fluorescence-based Ca2+ Mobilization Assay to Identify G Protein-coupled Receptor Agonists, Antagonists, and Allosteric Modulators. J Vis Exp 2018. [PMID: 29553532 DOI: 10.3791/56780] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
G protein-coupled receptors (GPCRs) are of great importance to the pharmaceutical industry as they are involved in many human diseases and include well-validated targets for therapeutic intervention. Discovery of lead compounds, including small synthetic molecules, that specifically inhibit the receptor's function, is an important initial step in drug development and relies on sensitive, specific, and robust cell-based assays. Here, we describe a kinetic cellular assay with a fluorescent readout primarily designed to identify receptor-specific antagonists that inhibit the intracellular Ca2+ release evoked upon the activation of the CXC chemokine receptor 4 (CXCR4) by its endogenous ligand, the CXC chemokine ligand 12 (CXCL12). A key advantage of this method is that it also enables screening of compounds endowed with intrinsic agonistic properties (i.e., compounds eliciting an increase in intracellular Ca2+ concentration in the absence of CXCL12) or compounds modulating the receptor's function via interaction with allosteric binding sites (i.e., positive and negative allosteric modulators (PAMs and NAMs, respectively)). On the down side, autofluorescent compounds might interfere with the assay's readout, thereby hampering reliable data interpretation. Most likely this assay can be implemented, with minimal adaptations, as a generic drug discovery assay for many other GPCRs of which the activation leads to a release of intracellular Ca2+.
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Affiliation(s)
- Sandra Claes
- Laboratory of Virology and Chemotherapy, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven
| | - Thomas D'huys
- Laboratory of Virology and Chemotherapy, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven
| | - Anneleen Van Hout
- Laboratory of Virology and Chemotherapy, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven
| | - Dominique Schols
- Laboratory of Virology and Chemotherapy, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven
| | - Tom Van Loy
- Laboratory of Virology and Chemotherapy, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven;
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Wu Z, Cao Y, Jiang X, Li M, Wang G, Yang Y, Lu K. Clinicopathological significance of chemokine receptor CXCR4 expression in papillary thyroid carcinoma: a meta-analysis. MINERVA ENDOCRINOL 2018; 45:43-48. [PMID: 29424203 DOI: 10.23736/s0391-1977.18.02709-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Emerging evidence indicates that C-X-C chemokine receptor type 4 (CXCR 4) is a candidate oncogene in several types of human tumors including papillary thyroid carcinoma (PTC). To investigate its expression impact on clinicopathological features, a meta-analysis was performed. EVIDENCE ACQUISITION A comprehensive search in the PubMed, Embase and The Cochrane Library (up to March 14, 2017) was performed for relevant studies using multiple search strategies. Methodological quality of the studies was also evaluated. Odds ratios (ORs) were calculated and summarized. EVIDENCE SYNTHESIS Final analysis was performed of 661 PTC patients from 8 eligible studies. The pooled OR indicated that CXCR4 expression was significantly higher in PTC than that in normal thyroid tissue and benign thyroid nodule (NTT/BTN) (OR=67.22, 95% CI: 32.85-137.55, P<0.00001). In subgroup analysis, CXCR4 expression was associated with age (OR=1.55, 95% CI: 1.02-2.34, P=0.04), lympaocytic thyroiditis (OR=1.68, 95% CI: 1.06-2.67, P=0.03); CXCR4 expression was not found to be associated with gender (OR=1.02, 95% CI: 0.66-1.58, P=0.93), multiple (OR=0.91, 95% CI: 0.55-1.53, P=0.73), lymph node metastatic (LNM) (OR=1.98, 95% CI: 0.88-4.47, P=0.10) and TNM stage (OR=2.00, 95% CI: 0.49-8.16, P=0.34). A sensitivity analysis found out the study by Zhu et al. which impacted the pooled OR, after removing this study, a positive and relatively stable result conformed that CXCR4 expression was associated to LNM. CONCLUSIONS The results of this meta-analysis suggest that CXCR4 expression is frequent and cancer-specific event in PTC.
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Affiliation(s)
- Zhaoshu Wu
- Department of General Surgery, Nanjing Hospital of Traditional Chinese Medicine, No.3 Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yue Cao
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Xiaoyan Jiang
- Department of General Surgery, Nanjing Hospital of Traditional Chinese Medicine, No.3 Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Min Li
- Department of General Surgery, Nanjing Hospital of Traditional Chinese Medicine, No.3 Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Gang Wang
- Department of General Surgery, Nanjing Hospital of Traditional Chinese Medicine, No.3 Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yue Yang
- Department of General Surgery, Nanjing Hospital of Traditional Chinese Medicine, No.3 Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Kai Lu
- Department of General Surgery, Nanjing Hospital of Traditional Chinese Medicine, No.3 Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China -
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126
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Breun M, Schwerdtfeger A, Martellotta DD, Kessler AF, Perez JM, Monoranu CM, Ernestus RI, Matthies C, Löhr M, Hagemann C. CXCR4: A new player in vestibular schwannoma pathogenesis. Oncotarget 2018; 9:9940-9950. [PMID: 29515781 PMCID: PMC5839412 DOI: 10.18632/oncotarget.24119] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 12/03/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND CXCR4 is a chemokine receptor that recruits blood stem cells and increases tumor cell growth and invasiveness. We examined CXCR4 expression in vestibular schwannomas (VS) from patients with and without neurofibromatosis type 2 (NF2) and correlated the levels with the patients' clinical characteristics. The aim was to determine whether CXCR4 can be used as a prognostic marker and as a target for systemic therapy. RESULTS Overall, CXCR4 mRNA levels were 4.6-fold higher in VS versus control; the levels were 4.9-fold higher in NF2 patients and 4.2-fold higher in sporadic VS patients. IHC and WB showed heterogeneous protein expression, and CXCR4 was expressed mainly in S100-positive Schwann cells. There was no correlation between the CXCR4 protein levels and tumor extension. However, there was a trend towards correlation between higher expression levels and greater hearing loss. MATERIALS AND METHODS CXCR4 mRNA and protein levels were determined in VS samples (n = 60); of these, 30 samples were from patients with NF2. Healthy nerves from autopsies served as controls. CXCR4 mRNA levels were measured by PCR, and protein levels were measured by immunohistochemistry (IHC) and Western blotting (WB). Tumor extension and hearing loss were categorized according to the Hannover Classification as clinical parameters. CONCLUSIONS CXCR4 mRNA was overexpressed in VS relative to healthy vestibular nerves, and there was a trend towards higher CXCR4 expression levels being correlated with greater functional impairment. Thus, CXCR4 may be a prognostic marker of VS, and CXCR4 inhibition has potential as a systemic approach for the treatment of VS.
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Affiliation(s)
- Maria Breun
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
| | | | | | - Almuth F. Kessler
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Jose M. Perez
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Camelia M Monoranu
- Department of Neuropathology, University of Würzburg, Institute of Pathology, 97080 Würzburg, Germany
- Comprehensive Cancer Center (CCC), Mainfranken, Würzburg
| | - Ralf-Ingo Ernestus
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Cordula Matthies
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Mario Löhr
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Carsten Hagemann
- Department of Neurosurgery, University Hospital Würzburg, 97080 Würzburg, Germany
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127
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MicroRNA-126 inhibits colon cancer cell proliferation and invasion by targeting the chemokine (C-X-C motif) receptor 4 and Ras homolog gene family, member A, signaling pathway. Oncotarget 2018; 7:60230-60244. [PMID: 27517626 PMCID: PMC5312381 DOI: 10.18632/oncotarget.11176] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 07/26/2016] [Indexed: 12/21/2022] Open
Abstract
MicroRNA-126 (miR-126) suppresses the migration, proliferation and invasion of colon cancer cells. However, the underlying mechanisms of miR-126 in colon cancer have not been fully elucidated. In this study, in vivo experiments revealed that miR-126 inhibits colon cancer growth and metastasis. Furthermore, miR-126 was down-regulated in human colon cancer tissue, and its expression was inversely correlated with TNM stage and metastasis of patients. Low level of miR-126 identified patients with poor prognosis. And we found that miR-126 expression was negatively correlated with the expression levels of chemokine (C-X-C motif) receptor 4 (CXCR4) and components of signaling pathway of Ras homolog gene family, member A (RhoA) in vitro and in vivo. Moreover, we verified that miR-126 negatively regulated CXCR4 and RhoA signaling in vitro. In addition, either in miR-126-overexpressing or in miR- 126-silenced colon cancer cells, the restoration of CXCR4 could significantly reverse the proliferation and invasion, as well as abolish the effects of miR-126 on RhoA signaling pathway. Collectively, these results demonstrated that miR-126 acts as a tumor suppressor by inactivating RhoA signaling via CXCR4 in colon cancer. And miR-126 may serve as a prognostic marker for monitoring and treating colon cancer.
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128
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Tian M, Chen L, Ma L, Wang D, Shao B, Wu J, Wu H, Jin Y. Expression and prognostic significance of CCL11/CCR3 in glioblastoma. Oncotarget 2018; 7:32617-27. [PMID: 27119233 PMCID: PMC5078038 DOI: 10.18632/oncotarget.8958] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 04/02/2016] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma (GBM) is the most lethal primary nervous system cancer, but due to its rarity and complexity, its pathogenesis is poorly understood. To identify potential tumorigenic factors in GBM, we screened antibody-based cytokine arrays and found that CCL11 was upregulated. We then demonstrated in vitro that both CCL11 and its receptor, CCR3, were overexpressed and promoted the proliferation, migration and invasion of cancer cells. To examine the clinical significance of CCL11/CCR3, 458 GBM samples were divided into a training cohort with 225 cases and a test cohort containing 233 cases. In the training set, immunohistochemical analysis showed overexpression of CCL11 and CCR3 were correlated with unfavorable overall survival (OS). We further developed a prognostic classifier combining CCL11 and CCR3 expression and Karnofsky performance status (KPS) for predicting one-year survival in GBM patients. Receiver operating characteristic (ROC) analysis demonstrated that this predictor achieved 90.7% sensitivity and 73.4% specificity. These results were validated with the test sample set. Our findings suggest that CCL11-CCR3 binding is involved in the progression of GBM and may prompt a novel therapeutic approach. In addition, CCL11 and CCR3 expression, combined with KPS, may be used as an accurate predictor of one-year survival in GBM patients.
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Affiliation(s)
- Min Tian
- Department of Gerontology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Lina Chen
- Department of Gerontology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Li Ma
- Department of Gerontology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Dandan Wang
- Department of Gerontology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Bin Shao
- Department of Gerontology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Jianyu Wu
- Department of General Surgery, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Hangyu Wu
- Department of Emergency, The General Hospital of Beijing Military Command, Beijing 100700, China
| | - Yimin Jin
- Department of Gerontology, First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
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Wang R, Yang L, Li S, Ye D, Yang L, Liu Q, Zhao Z, Cai Q, Tan J, Li X. Quercetin Inhibits Breast Cancer Stem Cells via Downregulation of Aldehyde Dehydrogenase 1A1 (ALDH1A1), Chemokine Receptor Type 4 (CXCR4), Mucin 1 (MUC1), and Epithelial Cell Adhesion Molecule (EpCAM). Med Sci Monit 2018; 24:412-420. [PMID: 29353288 PMCID: PMC5788241 DOI: 10.12659/msm.908022] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background Quercetin, nature’s most common flavonoid, possesses anticarcinogenic properties against various forms of cancer. The aim of this study was to investigate the effect of quercetin on breast cancer stem cells in the MDA-MB-231 cell line, and to elucidate the possible mechanisms for those effects. Material/Methods We evaluated breast cancer stem cell proliferation, clone generation, and mammosphere formation to determine the effect of quercetin treatment on breast cancer stem cells. Results In our study, quercetin suppressed breast cancer stem cell proliferation, self-renewal, and invasiveness. It also lowered the expression levels of proteins related to tumorigenesis and cancer progression, such as aldehyde dehydrogenase 1A1, C-X-C chemokine receptor type 4, mucin 1, and epithelial cell adhesion molecules. Conclusions These results indicate that quercetin targets and destroys breast cancer stem cells, making it a potential novel drug in the fight against cancer.
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Affiliation(s)
- Rong Wang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Department of Pharmacy, College of Marine Science, Hainan University, Haikou, Hainan, China (mainland)
| | - Laixiu Yang
- Department of Pharmacognosy, College of Pharmacy, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China (mainland)
| | - Shen Li
- Affiliated Hospital of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Dongmei Ye
- Medical College of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Lihong Yang
- Medical College of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Qingyan Liu
- Medical College of Chifeng University, , China (mainland)
| | - Zibo Zhao
- Medical College of Chifeng University, Chifeng, Inner Mongolia, China (mainland)
| | - Qing Cai
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China (mainland)
| | - Junzhen Tan
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China (mainland)
| | - Xiuli Li
- Key Laboratory of Pharmacology, Chifeng University, Chifeng, Inner Mongolia, China (mainland)
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130
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Chen Y, Li J, Oupický D. Conjugate Polyplexes with Anti-Invasive Properties and Improved siRNA Delivery In Vivo. Bioconjug Chem 2018; 29:296-305. [PMID: 29338191 DOI: 10.1021/acs.bioconjchem.7b00622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study reports on a simple method to prepare siRNA-polycation conjugate polyplexes by in situ thiol-disulfide exchange reaction. The conjugate polyplexes are prepared using thiol-terminated siRNA and a bioreducible branched polycationic inhibitor of the CXCR4 chemokine receptor (rPAMD). The rPAMD-SS-siRNA conjugate polyplexes exhibit improved colloidal stability and resistance against disassembly with heparin, serum, and physiological salt concentrations when compared with control conventional rPAMD/siRNA polyplexes. Coating the polyplexes with human serum albumin masks the positive surface charge and contributes to the enhanced in vitro gene silencing and improved safety in vivo. The conjugate polyplexes display improved in vivo reporter gene silencing following intravenous injection in tumor-bearing mice. Because the conjugate polyplexes retained the ability of rPAMD to inhibit CXCR4 and restrict cancer cell invasion, the developed systems show promise for future combination anti-metastatic siRNA therapies of cancer.
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Affiliation(s)
- Yi Chen
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Jing Li
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
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Buoncervello M, Romagnoli G, Buccarelli M, Fragale A, Toschi E, Parlato S, Lucchetti D, Macchia D, Spada M, Canini I, Sanchez M, Falchi M, Musella M, Biffoni M, Belardelli F, Capone I, Sgambato A, Vitiani LR, Gabriele L. IFN-α potentiates the direct and immune-mediated antitumor effects of epigenetic drugs on both metastatic and stem cells of colorectal cancer. Oncotarget 2018; 7:26361-73. [PMID: 27028869 PMCID: PMC5041985 DOI: 10.18632/oncotarget.8379] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 03/02/2016] [Indexed: 01/29/2023] Open
Abstract
Epigenetic alterations, including dysregulated DNA methylation and histone modifications, govern the progression of colorectal cancer (CRC). Cancer cells exploit epigenetic regulation to control cellular pathways, including apoptotic and metastatic signals. Since aberrations in epigenome can be pharmacologically reversed by DNA methyltransferase and histone deacetylase inhibitors, epigenetics in combination with standard agents are currently envisaged as a new therapeutic frontier in cancer, expected to overcome drug resistance associated with current treatments. In this study, we challenged this idea and demonstrated that the combination of azacitidine and romidepsin with IFN-α owns a high therapeutic potential, targeting the most aggressive cellular components of CRC, such as metastatic cells and cancer stem cells (CSCs), via tight control of key survival and death pathways. Moreover, the antitumor efficacy of this novel pharmacological approach is associated with induction of signals of immunogenic cell death. Of note, a previously undisclosed key role of IFN-α in inducing both antiproliferative and pro-apoptotic effects on CSCs of CRC was also found. Overall, these findings open a new frontier on the suitability of IFN-α in association with epigenetics as a novel and promising therapeutic approach for CRC management.
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Affiliation(s)
- Maria Buoncervello
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Giulia Romagnoli
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Mariachiara Buccarelli
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Alessandra Fragale
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Elena Toschi
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Stefania Parlato
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Donatella Lucchetti
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Daniele Macchia
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Massimo Spada
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Irene Canini
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Massimo Sanchez
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy
| | - Mario Falchi
- National AIDS Center, Istituto Superiore di Sanità, Rome, Italy
| | - Martina Musella
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Mauro Biffoni
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Filippo Belardelli
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Imerio Capone
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Alessandro Sgambato
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Lucia Ricci Vitiani
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Lucia Gabriele
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
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Kaemmerer D, Schindler R, Mußbach F, Dahmen U, Altendorf-Hofmann A, Dirsch O, Sänger J, Schulz S, Lupp A. Somatostatin and CXCR4 chemokine receptor expression in hepatocellular and cholangiocellular carcinomas: tumor capillaries as promising targets. BMC Cancer 2017; 17:896. [PMID: 29282035 PMCID: PMC5745780 DOI: 10.1186/s12885-017-3911-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 12/13/2017] [Indexed: 12/15/2022] Open
Abstract
Background Hepatocellular (HCC) and cholangiocellular carcinomas (CCC) display an exceptionally poor prognosis. Especially for advanced disease no efficient standard therapy is currently available. Recently, somatostatin analogs have been evaluated for the treatment of HCC, however, with contradictory results. Besides, for both malignancies the chemokine receptor CXCR4 has been discussed as a possible new target structure. Methods Expression of somatostatin receptor (SSTR) subtypes 1, 2A, 3, 4, and 5, and of CXCR4 was evaluated in a total of 71 HCCs and 27 CCCs by immunohistochemistry using well-characterized novel monoclonal antibodies. Results In HCC tumor cells, frequency and intensity of expression of SSTRs and CXCR4 were only low. CXCR4 was present in about 40% of the HCCs, although at a low intensity. SSTR5, SSTR2, and SSTR3 were detected in about 15%, 8%, and 5% of the HCC tumors, respectively. SSTR and CXCR4 expression was much higher in CCC than in HCC. CXCR4 and SSTR1 were present in 60% and 67% of the CCC samples, respectively, followed by SSTR2 and SSTR5, which were detected in 30% and 11% of the tumors, respectively. Most notably, CXCR4 was intensely expressed on the tumor capillaries in about 50% of the HCCs and CCCs. CXCR4 expression on tumor vessels was associated with poor patient outcomes. Conclusions CCC, but not HCC, may be suitable for SSTR-based treatments. Because of the predominant expression of SSTR1, pan-somatostatin analogs should be preferred. In both HCC and CCC, indirect targeting of tumors via the CXCR4-positive tumor capillaries may represent a promising additional therapeutic strategy. Electronic supplementary material The online version of this article (10.1186/s12885-017-3911-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daniel Kaemmerer
- Department of General and Visceral Surgery, Zentralklinik Bad Berka, Bad Berka, Germany
| | - Robin Schindler
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, D-07747, Jena, Germany
| | - Franziska Mußbach
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena, Germany
| | - Uta Dahmen
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena, Germany
| | | | - Olaf Dirsch
- Institute of Pathology, Jena University Hospital, Jena, Germany
| | - Jörg Sänger
- Institute of Pathology and Cytology Bad Berka, Bad Berka, Germany
| | - Stefan Schulz
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, D-07747, Jena, Germany
| | - Amelie Lupp
- Institute of Pharmacology and Toxicology, Jena University Hospital, Friedrich Schiller University Jena, Drackendorfer Str. 1, D-07747, Jena, Germany.
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Teixidó J, Martínez-Moreno M, Díaz-Martínez M, Sevilla-Movilla S. The good and bad faces of the CXCR4 chemokine receptor. Int J Biochem Cell Biol 2017; 95:121-131. [PMID: 29288743 DOI: 10.1016/j.biocel.2017.12.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 12/14/2017] [Accepted: 12/19/2017] [Indexed: 11/18/2022]
Abstract
Chemokines are chemotactic cytokines that promote cell migration and activation under homeostatic and inflammatory conditions. Chemokines bind to seven transmembrane-spanning receptors that are coupled to heterotrimeric guanine nucleotide-binding (G) proteins, which are the responsible for intracellularly transmitting the activating signals for cell migration. Hematopoiesis, vascular development, lymphoid organ morphogenesis, cardiogenesis and neural differentiation are amongst the processes involving chemokine function. In addition, immune cell trafficking from bone marrow to blood circulation, and from blood and lymph to lymphoid and inflamed tissues, is tightly regulated by chemokines both under physiological conditions and also in autoimmune diseases. Furthermore, chemokine binding to their receptors stimulate trafficking to and positioning of cancer cells into target tissues and organs during tumour dissemination. The CXCL12 chemokine (also known as stromal-cell derived factor-1α, SDF-1α) plays key roles in hematopoiesis and lymphoid tissue architecture, in cardiogenesis, vascular formation and neurogenesis, as well as in the trafficking of solid and hematological cancer cell types. CXCL12 binds to the CXCR4 receptor, a multi-facetted molecule which tightly mirrors CXCL12 functions in homeostasis and disease. This review addresses the important roles of the CXCR4-CXCL12 axis in homeostasis, specially focusing in hematopoiesis, as well as it provides a picture of CXCR4 as mediator of cancer cell spreading, and a view of the available CXCR4 antagonists in different cancer types.
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Affiliation(s)
- Joaquin Teixidó
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biológicas (CSIC), 28040 Madrid, Spain.
| | - Mónica Martínez-Moreno
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biológicas (CSIC), 28040 Madrid, Spain
| | - Marta Díaz-Martínez
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biológicas (CSIC), 28040 Madrid, Spain
| | - Silvia Sevilla-Movilla
- Department of Cellular and Molecular Medicine, Centro de Investigaciones Biológicas (CSIC), 28040 Madrid, Spain
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134
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Genetic variation of CXCR4 and risk of coronary artery disease: epidemiological study and functional validation of CRISPR/Cas9 system. Oncotarget 2017; 9:14077-14083. [PMID: 29581828 PMCID: PMC5865654 DOI: 10.18632/oncotarget.23491] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 10/05/2017] [Indexed: 11/29/2022] Open
Abstract
Cardiovascular diseases (CVDs) remain the leading cause of death worldwide, while coronary artery disease (CAD) account for a large part of CVDs. Vascular CXCR4 could limit atherosclerosis by maintaining arterial integrity. Here, we conducted a population-based, case-control study to evaluate the associations of common genetic variation within the CXCR4 gene (rs2228014, rs117600832, rs2471859, and rs2322864) with CAD risk in a Chinese population. We found that CXCR4 rs2228014 was significantly associated with 1.29-fold increased risk of CAD (A vs G: OR = 1.29; 95% CI = 1.07–1.55; P = 0.007). The subjects with genotype AA (OR = 1.98; 95% CI = 1.03–3.81; P = 0.041) and AG (OR = 1.27; 95% CI = 1.02–1.58; P = 0.030) have higher risk of CAD, compared with those with genotype GG. Furthermore, both in the CAD patients with diabetes and those without diabetes, rs2228014 was significantly associated with increased risk of CAD (P < 0.05). Additionally, we also validated the significant association for rs2322864 (C vs T: OR = 1.20; 95% CI = 1.00–1.44; P = 0.046). Knockout of CXCR4 gene could significantly impair the capacity of cholesterol efflux (P < 0.01). These findings strongly suggest that CXCR4 polymorphisms might contribute to CAD susceptibility, and the exact biological mechanism awaits further research.
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135
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Zhang J, Liu C, Mo X, Shi H, Li S. Mechanisms by which CXCR4/CXCL12 cause metastatic behavior in pancreatic cancer. Oncol Lett 2017; 15:1771-1776. [PMID: 29434873 DOI: 10.3892/ol.2017.7512] [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: 05/02/2016] [Accepted: 01/17/2017] [Indexed: 02/07/2023] Open
Abstract
C-X-C motif chemokine receptor (CXCR) 4/CXCL12 is associated with tumor invasion and metastasis in pancreatic cancer. The present study aimed to investigate the possible mechanisms behind this process by studying the association between the expression of CXCR4 and numerous molecular markers. A total of 60 patients with pancreatic cancer who had been treated with radical surgery between July 2012 and February 2016 were included in the present study. The expression of CXCR4/CXCL12 in primary pancreatic cancer lesions, tissues adjacent to cancerous tissue, non-cancerous pancreatic tissues and in the surrounding lymph nodes was evaluated by immunohistochemistry. Expression levels of four candidate biomarkers [vascular endothelial growth factor-C (VEGF-C), Ki-67, matrix metalloproteinase 2 (MMP-2) and β-catenin] were also evaluated. The correlation between CXCR4 and these four biomarkers was assessed. CXCR4 (CXCL12) expression levels were higher in pancreatic cancer 56.7% (86.7%), paracancerous tissue 50.0% (85.0%) and surrounding lymph nodes 53.3% (80.0%), compared with in normal tissues 18.3% (45.0%). CXCR4 expression was significantly associated with the lymph node metastasis of tumors (P=0.001), pathological type (P=0.037) and tumor-node-metastasis stage (P=0.031). CXCR4 expression exhibited a positive correlation with VEGF-C (r=0.417; P=0.001), Ki-67 (r=0.316; P=0.014), MMP-2 (r=0.284; P=0.028) and β-catenin (r=0.368; P=0.04). Furthermore, logistic regression analysis revealed VEGF-C (β=1.722; P=0.005) and Ki-67 (β=1.196; P=0.047) to be two biomarkers that cause metastasis via CXCR4. CXCR4/CXCL12 is closely associated with tumor grade and lymphatic metastasis. VEGF-C and Ki-67 are two important biomarkers, through which CXCR4 initiates metastatic behavior in pancreatic cancer. Therefore, angiogenesis inhibitors will continue to be effective agents in treating pancreatic cancer.
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Affiliation(s)
- Jianbo Zhang
- Department of Pathology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Chengxin Liu
- Department of Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Xinkai Mo
- Department of Pathology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Huan Shi
- Department of Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
| | - Sheng Li
- Department of Hepatology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
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Knopf A, Bahadori L, Fritsche K, Piontek G, Becker CC, Knolle P, Krüger A, Bier H, Li Y. Primary tumor-associated expression of CXCR4 predicts formation of local and systemic recurrency in head and neck squamous cell carcinoma. Oncotarget 2017; 8:112739-112747. [PMID: 29348861 PMCID: PMC5762546 DOI: 10.18632/oncotarget.22562] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/30/2017] [Indexed: 12/14/2022] Open
Abstract
Objectives Despite modern treatment regimens, overall survival in head and neck squamous cell carcinomas (HNSCC) is less than 50% due to local and systemic disease recurrency. The current study aims to identify molecular markers in primary tumor specimens that predict the risk for local and systemic recurrency at the time of initial diagnosis. Methods The study included clinic-pathological data of 1,057 HNSCC. MMP2/9, TIMP1/2, CXCR4, and CXCL12 immunohistochemistry was done in 150 randomly selected specimens. For statistics, we employed Chi square, Fisher exact, and Student's t-test. Overall survival (OS) was calculated by Kaplan–Meier and log-rank test. Prognostic variables were subsequently evaluated by Cox regression for forward selection. Results CXCR4 positive specimens demonstrated a significant increased risk for tumor recurrency associated death (rT: HR 10.07; p=0.001 / rN: HR 5.04; p=0.013 / rM: HR 2.49; p=0.029) when compared with their unaltered counterparts. Expression of MMP9, TIMP2, CXCR4, and CXCL12 was significantly increased in distant metastasized patients (p<0.0001) and showed significant cross-correlation. In addition, CXCR4 positivity was associated with an increased risk to die due to enhanced T or N status (T1/2 vs. T3/4: HR 5.78; p=0.017; N0 vs. N+: HR 5.18; p=0.033). Conclusion CXCR4 positivity in tumor samples at initial diagnosis were associated with reduced overall survival, in particular with respect to increasing T/N status, local and systemic recurrency.
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Affiliation(s)
- Andreas Knopf
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Leila Bahadori
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Kristin Fritsche
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Guido Piontek
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Cord-Christian Becker
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Percy Knolle
- Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Achim Krüger
- Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Henning Bier
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
| | - Yin Li
- Otorhinolaryngology, Head and Neck Surgery, Institute of Molecular Immunology & Experimental Oncology, 81675 München, Germany
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Serum SDF-1 levels are a reliable diagnostic marker of feline mammary carcinoma, discriminating HER2-overexpressing tumors from other subtypes. Oncotarget 2017; 8:105775-105789. [PMID: 29285291 PMCID: PMC5739678 DOI: 10.18632/oncotarget.22398] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 10/25/2017] [Indexed: 02/07/2023] Open
Abstract
The feline mammary carcinoma (FMC) is the third most common tumor in cat, sharing many clinicopathological features with human breast cancer and thus, considered a suitable model for comparative oncology. Due to its poor prognosis, further studies are required to improve the diagnostic accuracy and treatment of cats with spontaneous mammary carcinoma. Recently, it was reported that the overexpression of stromal cell-derived factor-1 (SDF-1) has great value in human breast cancer diagnosis, suggesting that diagnostic tools and therapies targeting the SDF-1 ligand can improve the clinical outcome. In this study, we aimed to evaluate if serum SDF-1 levels can also be used as a biomarker of mammary carcinoma in cats and to analyze if serum SDF-1 levels are associated with clinicopathological features, linked to a specific FMC subtype or correlated with the tumor expression of SDF-1 receptor, the chemokine C-X-C motif receptor 4 (CXCR4). Results showed that cats with mammary carcinoma had significantly higher serum SDF-1 levels than healthy controls (p=0.035) and ROC analysis revealed that the best cut-off value to differentiate sick from healthy animals was 2 ng/ml (specificity: 80%; sensitivity: 57%; AUC=0.715). Significant associations were also found between cats with elevated serum SDF-1 concentrations (≥ 2 ng/ml) and HER2-overexpressing mammary carcinomas (Luminal B-like and HER2-positive subtypes, p<0.0001), CXCR4-negative mammary carcinomas (p=0.027), mammary carcinomas with small size (<3 cm, p=0.027) and tumors with low Ki-67 expression (p=0.012). No statistical associations were found between serum SDF-1 levels and overall or disease-free survival. In summary, our results show that serum SDF-1 levels can be used as a biomarker of feline mammary carcinoma, especially in cats with HER2-overexpressing mammary tumors. Data suggest that targeted therapies against the SDF-1 ligand and/or its CXC4 receptor may be effective for the treatment of FMC, as described for human breast cancer, strengthening the concept that spontaneous feline mammary carcinoma is a suitable model for comparative oncology.
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138
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De-Colle C, Menegakis A, Mönnich D, Welz S, Boeke S, Sipos B, Fend F, Mauz PS, Tinhofer I, Budach V, Abu Jawad J, Stuschke M, Balermpas P, Rödel C, Grosu AL, Abdollahi A, Debus J, Belka C, Ganswindt U, Pigorsch S, Combs SE, Lohaus F, Linge A, Krause M, Baumann M, Zips D. SDF-1/CXCR4 expression is an independent negative prognostic biomarker in patients with head and neck cancer after primary radiochemotherapy. Radiother Oncol 2017; 126:125-131. [PMID: 29061496 DOI: 10.1016/j.radonc.2017.10.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 10/04/2017] [Accepted: 10/04/2017] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Preclinical and clinical data suggest that the chemokine pathway governed by SDF-1 and CXCR4 contributes to a resistant phenotype. This retrospective biomarker study aims to explore the specific prognostic value of SDF-1 and CXCR4 expression in locally advanced head and neck squamous cell carcinomas (HNSCC) treated with primary radiochemotherapy (RT-CT). MATERIAL AND METHODS Biopsies from 141 HNSCC tumours of the oral cavity, oropharynx and hypopharynx were evaluated for SDF-1 and CXCR4 expression by immunofluorescence. SDF-1 and CXCR4 expression was correlated with clinico-pathological characteristics and outcome after RT-CT. RESULTS Patients with tumours exhibiting overexpression of intracellular SDF-1 and CXCR4 have a higher risk for loco-regional relapse and a worse overall survival after RT-CT (multivariate analysis, hazard ratio 2.33, CI [1.18-4.62], p = 0.02 and hazard ratio 2.02, CI [1.13-3.59], p = 0.02, respectively). Similar results were observed when only the subgroup of HPV DNA negative patients were analysed (hazard ratio 2.23 and 2.16, p = 0.02 and p = 0.01, respectively). CONCLUSIONS Our data support the importance of SDF-1 and CXCR4 expression for loco-regional control and overall survival in HNSCC after primary radiochemotherapy. Prospective multivariate validation and further studies into CXCR4 inhibition to overcome radiation resistance are warranted.
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Affiliation(s)
- Chiara De-Colle
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany.
| | - Apostolos Menegakis
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany
| | - David Mönnich
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany; German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Tübingen, Germany
| | - Stefan Welz
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany
| | - Simon Boeke
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany
| | - Bence Sipos
- Department of Pathology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany
| | - Falko Fend
- Department of Pathology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany
| | - Paul-Stefan Mauz
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany
| | - Inge Tinhofer
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Berlin, Germany; Department of Radiooncology and Radiotherapy, Charité University Hospital, Berlin, Germany
| | - Volker Budach
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Berlin, Germany; Department of Radiooncology and Radiotherapy, Charité University Hospital, Berlin, Germany
| | - Jehad Abu Jawad
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Essen, Germany; Department of Radiotherapy, Medical Faculty, University of Duisburg-Essen, Germany
| | - Martin Stuschke
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Essen, Germany; Department of Radiotherapy, Medical Faculty, University of Duisburg-Essen, Germany
| | - Panagiotis Balermpas
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Frankfurt, Germany; Department of Radiotherapy and Oncology, Goethe-University Frankfurt, Germany
| | - Claus Rödel
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Frankfurt, Germany; Department of Radiotherapy and Oncology, Goethe-University Frankfurt, Germany
| | - Anca-Ligia Grosu
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Freiburg, Germany; Department of Radiation Oncology, University of Freiburg, Germany
| | - Amir Abdollahi
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany; Heidelberg Ion Therapy Center (HIT), Department of Radiation Oncology, University of Heidelberg Medical School, Germany; National Center for Tumor Diseases (NCT), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany; Translational Radiation Oncology, University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
| | - Jürgen Debus
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany; Heidelberg Ion Therapy Center (HIT), Department of Radiation Oncology, University of Heidelberg Medical School, Germany; National Center for Tumor Diseases (NCT), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany; Clinical Cooperation Unit Radiation Oncology, University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
| | - Claus Belka
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Munich, Germany; Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Ute Ganswindt
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Munich, Germany; Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Steffi Pigorsch
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Munich, Germany; Department of Radiation Oncology, Technische Universität München, Germany.; Institute for Innovative radiation therapy in Helmholtz-Zentrum München, Germany
| | - Stephanie E Combs
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Munich, Germany; Department of Radiation Oncology, Technische Universität München, Germany.; Institute for Innovative radiation therapy in Helmholtz-Zentrum München, Germany
| | - Fabian Lohaus
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Dresden, Germany; Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Germany; Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Germany
| | - Annett Linge
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Dresden, Germany; Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Germany; National Center for Tumor Diseases (NCT), partner site Dresden, Germany
| | - Mechthild Krause
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Dresden, Germany; Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Germany; National Center for Tumor Diseases (NCT), partner site Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Germany
| | - Michael Baumann
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Dresden, Germany; Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany; OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Germany; National Center for Tumor Diseases (NCT), partner site Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiooncology - OncoRay, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniel Zips
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Germany; German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK) partner site Tübingen, Germany
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139
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Zhu L, Liu R, Zhang W, Qian S, Wang J. Application of EGFR inhibitor reduces circulating tumor cells during transcatheter arterial embolization. Clin Transl Oncol 2017; 20:639-646. [DOI: 10.1007/s12094-017-1761-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 09/30/2017] [Indexed: 12/23/2022]
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140
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Peng SB, Van Horn RD, Yin T, Brown RM, Roell WC, Obungu VH, Ruegg C, Wroblewski VJ, Raddad E, Stille JR. Distinct mobilization of leukocytes and hematopoietic stem cells by CXCR4 peptide antagonist LY2510924 and monoclonal antibody LY2624587. Oncotarget 2017; 8:94619-94634. [PMID: 29212254 PMCID: PMC5706900 DOI: 10.18632/oncotarget.21816] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/15/2017] [Indexed: 01/01/2023] Open
Abstract
Stromal cell-derived factor-1 (SDF-1) and its receptor CXCR4 play a critical role in mobilization and redistribution of immune cells and hematopoietic stem cells (HSCs). We evaluated effects of two CXCR4-targeting agents, peptide antagonist LY2510924 and monoclonal antibody LY2624587, on mobilizing HSCs and white blood cells (WBCs) in humans, monkeys, and mice. Biochemical analysis showed LY2510924 peptide blocked SDF-1/CXCR4 binding in all three species; LY2624587 antibody blocked binding in human and monkey, with minimal activity in mouse. Cellular analysis showed LY2624587 antibody, but not LY2510924 peptide, down-regulated cell surface CXCR4 and induced hematological tumor cell death; both agents have been shown to inhibit SDF-1/CXCR4 interaction and downstream signaling. In animal models, LY2510924 peptide induced robust, prolonged, dose- and time-dependent WBC and HSC increases in mice and monkeys, whereas LY2624587 antibody induced only moderate, transient increases in monkeys. In clinical trials, similar pharmacodynamic effects were observed in patients with advanced cancer: LY2510924 peptide induced sustained WBC and HSC increases, while LY2624587 antibody induced only minimal, transient WBC changes. These distinct pharmacodynamic effects in two different classes of CXCR4 inhibitors are clinically important and should be carefully considered when designing combination studies with immune checkpoint inhibitors or other agents for cancer therapy.
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Affiliation(s)
- Sheng-Bin Peng
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Robert D Van Horn
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Tinggui Yin
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Robin M Brown
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - William C Roell
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Victor H Obungu
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Charles Ruegg
- The Chorus Group, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Victor J Wroblewski
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - Eyas Raddad
- The Chorus Group, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
| | - John R Stille
- The Chorus Group, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
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141
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Lear T, Dunn SR, McKelvey AC, Mir A, Evankovich J, Chen BB, Liu Y. RING finger protein 113A regulates C-X-C chemokine receptor type 4 stability and signaling. Am J Physiol Cell Physiol 2017; 313:C584-C592. [PMID: 28978524 DOI: 10.1152/ajpcell.00193.2017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 01/05/2023]
Abstract
As an α-chemokine receptor specific for stromal-derived-factor-1 (SDF-1, also called CXCL12), C-X-C chemokine receptor type 4 (CXCR4) plays a vital role in chemotactically attracting lymphocytes during inflammation. CXCR4 also regulates HIV infection due to its role as one of the chemokine coreceptors for HIV entry into CD4+ T cells. Chemokine receptors and their signaling pathways have been shown to be regulated by the process of ubiquitination, a posttranslational modification, guided by ubiquitin E3 ligases, which covalently links ubiquitin chains to lysine residues within target substrates. Here we describe a novel mechanism regulating CXCR4 protein levels and subsequent CXCR4/CXCL12 signaling pathway through the ubiquitination and degradation of the receptor in response to ligand stimulation. We identify that an uncharacterized really interesting new gene (RING) finger ubiquitin E3 ligase, RING finger protein 113A (RNF113A), directly ubiquitinates CXCR4 in cells, leading to CXCR4 degradation, and therefore disrupts the signaling cascade. We determined that the K331 residue within CXCR4 is essential for RNF113A-mediated ubiquitin conjugation. Overexpression of RNF113A significantly reduces CXCL12-induced kinase activation in HeLa cells, whereas RNF113A knockdown enhances CXCL12-induced downstream signaling. Further, RNF113A expression and silencing directly affect cell motility in a wound healing assay. These results suggest that RNF113A plays an important role in CXCR4 signaling through the ubiquitination and degradation of CXCR4. This mechanistic study might provide new understanding of HIV immunity and neutrophil activation and motility regulated by CXCR4.
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Affiliation(s)
- Travis Lear
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Environmental and Occupational Health, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sarah R Dunn
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Alison C McKelvey
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Aazrin Mir
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - John Evankovich
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bill B Chen
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania.,Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania; and
| | - Yuan Liu
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania; .,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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142
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Xu ZZ, Shen JK, Zhao SQ, Li JM. Clinical significance of chemokine receptor CXCR4 and mammalian target of rapamycin (mTOR) expression in patients with diffuse large B-cell lymphoma. Leuk Lymphoma 2017; 59:1451-1460. [PMID: 28952842 DOI: 10.1080/10428194.2017.1379077] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
To assess the relevance of C-X-C chemokine receptor type 4 (CXCR4) and mammalian target of rapamycin (mTOR) to large-B-cell lymphoma (DLBCL), levels of protein expression were measured in 56 DLBCL patients who had received rituximab-based therapy. Of these, 34 were positive for CXCR4 expression (60.7%) and 31 for mTOR (55.4%). CXCR4 expression was positively correlated with mTOR expression (r = 0.602; p = .000). CXCR4 expression was significantly associated with high lactate dehydrogenase (LDH) level (p = .009), high IPI score (p = .030) and non-GCB subtype (p = .006). Furthermore, the expression levels of CXCR4 and mTOR were negatively correlated with the chance of remission (p < .05). Kaplan-Meier analysis indicated significantly shorter progression-free survival (PFS) and overall survival (OS) in patients positive for CXCR4 and mTOR expression. The combination therapy with CXCR4 inhibitor WZ811 and mTOR inhibitor everolimus showed syncergistic effect in DLBCL cell lines. These results suggest that the expression of CXCR4 and mTOR may be suitable as biomarkers of the prognosis of DLBCL and for development of new therapeutic strategies.
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Affiliation(s)
- Zi-Zhen Xu
- a Department of Laboratory Medicine , Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Jian-Kang Shen
- b Department of Surgery , Luwan Branch of Ruijin Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Shu-Qing Zhao
- c Department of Hematology , Luwan Branch of Ruijin Hospital, Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Jun-Min Li
- d Department of Hematology , Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine , Shanghai , China
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143
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Incidence and risk of hematologic toxicities in cancer patients treated with regorafenib. Oncotarget 2017; 8:93813-93824. [PMID: 29212191 PMCID: PMC5706837 DOI: 10.18632/oncotarget.21217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/27/2017] [Indexed: 12/19/2022] Open
Abstract
Regorafenib, an oral vascular endothelial growth factor receptor tyrosine-kinase inhibitor, has been approved for the treatment of several malignancies. As a non-traditional cytotoxic chemotherapeutic agent, regorafenib is often associated with hematologic toxicities. Here we searched PubMed and Embase up to June 2017 for relevant clinical trials. Eligible studies include trials in which subjects treated with 160 mg of regorafenib daily during the first 21 days of each 28-day cycle, and adequate safety data profile reporting thrombocytopenia, anemia, neutropenia and leucopenia. Statistical analyses were conducted to calculate the overall incidences, relative risks (RRs) and their 95% confidence intervals (CIs). A total of 2,341 subjects from 16 trials were included in the present studies. The incidences of regorafenib associated all-grade and high-grade hematologic toxicities were: thrombocytopenia, 22% and 3%; anemia, 20% and 3%; neutropenia, 10% and 2%, and leucopenia, 13% and 2%, respectively. Regorafenib-treated subjects had a significant increased risk of all-grade (RR=6.35; 95% CI, 3.19-12.64) and high-grade (RR=6.27; 95% CI, 1.69-23.26) thrombocytopenia, all-grade (RR=2.76; 95% CI, 1.63-4.68) and high-grade (RR=5.38; 95% CI, 1.60-18.06) anemia. Our results suggested that regorafenib therapy was associated with significantly increased risks of hematological toxicities, and hematologic monitoring at regular intervals should be advised to clinician.
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144
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Zhao B, Zhao H. Incidence and risk of regorafenib-induced hepatotoxicity. Oncotarget 2017; 8:84102-84111. [PMID: 29137408 PMCID: PMC5663580 DOI: 10.18632/oncotarget.21106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/03/2017] [Indexed: 12/19/2022] Open
Abstract
Regorafenib, an oral multi-kinase inhibitor, has been approved for the treatments of several malignancies. Unlike traditional cytotoxic chemotherapeutic agents, regorafenib therapy often induces a distinct profile of adverse events (AEs) including hepatotoxicity. Here we conducted an up-to-date meta-analysis to assess the incidence and risk of regorafenib related hepatic toxicities. PubMed and Embase database were reviewed from inception to June 2017 for relevant trials. Eligible studies include subjects with solid tumors treated with 160 mg of regorafenib daily during the first three week of each four-week cycle, and adequate safety data reporting the elevation of aspartate transaminase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) and bilirubin. Statistical analyses were conducted to calculate the summary incidence and relative risk (RR). A total of 2,213 subjects from 14 trials were included. The incidences of regorafenib-associated all-grade and high-grade hepatotoxicity were: bilirubin elevation: 23% and 5%; AST elevation: 32% and 6%; ALT elevation: 27% and 5%; ALP elevation: 31% and 2%. Regorafenib-treated subjects had a significant increased risk of all-grade (RR = 3.10; 95% CI, 2.22–4.34) and high-grade (RR = 1.74; 95% CI, 1.09–2.80) bilirubin elevation; all-grade (RR = 1.51; 95% CI, 1.13–2.00) and high-grade (RR = 1.79; 95% CI, 1.00–3.22) AST elevation; all-grade (RR = 1.82; 95% CI, 1.25–2.64) and high-grade (RR = 3.07; 95% CI, 1.30–7.22) ALT elevation; and all-grade (RR = 2.11; 95% CI, 1.01–4.40) ALP elevation. Our results suggest that regorafenib is associated with an increased risk of hepatic toxicities. Hepatotoxicity examination at regular intervals should be advised to clinicians.
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Affiliation(s)
- Bin Zhao
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Hong Zhao
- Department of Medical Oncology, The Third Affiliated Hospital of Harbin Medical University, Harbin, 150081, China
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Schwarzenböck SM, Stenzel J, Otto T, Helldorff HV, Bergner C, Kurth J, Polei S, Lindner T, Rauer R, Hohn A, Hakenberg OW, Wester HJ, Vollmar B, Krause BJ. [ 68Ga]pentixafor for CXCR4 imaging in a PC-3 prostate cancer xenograft model - comparison with [ 18F]FDG PET/CT, MRI and ex vivo receptor expression. Oncotarget 2017; 8:95606-95619. [PMID: 29221153 PMCID: PMC5707047 DOI: 10.18632/oncotarget.21024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 08/17/2017] [Indexed: 12/29/2022] Open
Abstract
Purpose The aim was to characterize the properties of [68Ga]Pentixafor as tracer for prostate cancer imaging in a PC-3 prostate cancer xenograft mouse model and to investigate its correlation with [18F]FDG PET/CT, magnetic resonance imaging (MRI) and ex vivo analyses. Methods Static [68Ga]Pentixafor and [18F]FDG PET as well as morphological/ diffusion weighted MRI and 1H MR spectroscopy was performed. Imaging data were correlated with ex vivo biodistribution and CXCR4 expression in PC-3 tumors (immunohistochemistry (IHC), mRNA analysis). Flow cytometry was performed for evaluation of localization of CXCR4 receptors (in vitro PC-3 cell experiments). Results Tumor uptake of [68Ga]Pentixafor was significantly lower compared to [18F]FDG. Ex vivo CXCR4 mRNA expression of tumors was shown by PCR. Only faint tumor CXCR4 expression was shown by IHC (immuno reactive score of 3). Accordingly, flow cytometry of PC-3 cells revealed only a faint signal, cell membrane permeabilisation showed a slight signal increase. There was no significant correlation of [68Ga]Pentixafor tumor uptake and ex vivo receptor expression. Spectroscopy showed typical spectra of prostate cancer. Conclusion PC-3 tumor uptake of [68Ga]Pentixafor was existent but lower compared to [18F]FDG. No significant correlation of ex vivo tumor CXCR4 receptor expression and [68Ga]Pentixafor tumor uptake was shown. CXCR4 receptor expression on the surface of PC-3 cells was existent but rather low possibly explaining the limited [68Ga]Pentixafor tumor uptake; receptor localization in the interior of PC-3 cells is presumable as shown by cell membrane permeabilisation. Further studies are necessary to define the role of [68Ga]Pentixafor in prostate cancer imaging.
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Affiliation(s)
- Sarah M Schwarzenböck
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Jan Stenzel
- Core Facility Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Thomas Otto
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Heike V Helldorff
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Carina Bergner
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Jens Kurth
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Stefan Polei
- Core Facility Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Tobias Lindner
- Core Facility Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Romina Rauer
- Core Facility Small Animal Imaging, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Alexander Hohn
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Oliver W Hakenberg
- Department of Urology, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Hans J Wester
- Institute for Radiopharmaceutical Chemistry, Technische Universität München, 85748 Garching, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Centre, 18057 Rostock, Germany
| | - Bernd J Krause
- Department of Nuclear Medicine, Rostock University Medical Centre, 18057 Rostock, Germany
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Sleightholm R, Yang B, Yu F, Xie Y, Oupický D. Chloroquine-Modified Hydroxyethyl Starch as a Polymeric Drug for Cancer Therapy. Biomacromolecules 2017; 18:2247-2257. [PMID: 28708385 PMCID: PMC5996760 DOI: 10.1021/acs.biomac.7b00023] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydroxyethyl starch (HES) is a clinically used polysaccharide colloidal plasma volume expander. The goal of this study was to synthesize HES modified with hydroxychloroquine (HCQ) as a novel polymeric drug with the ability to inhibit the invasive character of pancreatic cancer (PC) cells. HES was conjugated with HCQ using a simple carbonyldiimidazole coupling to prepare Chloroquine-modified HES (CQ-HES). CQ-HES with various degrees of HCQ substitution were synthesized and characterized. Atomic force microscopy was used to demonstrate a pH-dependent assembly of CQ-HES into well-defined nanoparticles. In vitro studies in multiple PC cell lines showed CQ-HES to have a similar toxicity profile as HCQ. Confocal microscopy revealed the propensity of CQ-HES to localize to lysosomes and mechanistic studies confirmed the ability of CQ-HES to inhibit autophagy in PC cells. Further studies demonstrated a greatly enhanced ability of CQ-HES to inhibit the migration and invasion of PC cells when compared with HCQ. The enhanced inhibitory actions of CQ-HES compared to HCQ appeared to arise in part from the increased inhibition of ERK and Akt phosphorylation. We found no significant HCQ release from CQ-HES, which confirmed that the observed activity was due to the action of CQ-HES as a polymeric drug. Due to its promising ability to block cancer cell invasion and the ability to form nanoparticles, CQ-HES has the potential as a drug delivery platform suitable for future development with chemotherapeutics to establish novel antimetastatic treatments.
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Affiliation(s)
- Richard Sleightholm
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Bin Yang
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Fei Yu
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Ying Xie
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - David Oupický
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States
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147
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Targeting the CXCR4/CXCL12 axis with the peptide antagonist E5 to inhibit breast tumor progression. Signal Transduct Target Ther 2017; 2:17033. [PMID: 29263923 PMCID: PMC5661635 DOI: 10.1038/sigtrans.2017.33] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/14/2017] [Accepted: 04/25/2017] [Indexed: 12/30/2022] Open
Abstract
Emerging evidence has demonstrated that stromal cell-derived factor 1 (SDF-1) and its cognate receptor CXCR4 have critical roles in tumorigenesis, angiogenesis and metastasis. In this study, we demonstrated the significant inhibitory effects of a novel chemically synthetic peptide (E5) on the CXCR4/CXCL12 axis in breast cancer both in vitro and in vivo. E5 was capable of specifically binding to the murine breast cancer cell line 4T1, remarkably inhibiting CXCL12- or stromal cell (MS-5)-induced migration, and adhesion and sensitizing 4T1 cells to multiple chemotherapeutic drugs. Furthermore, E5 combined with either paclitaxel or cyclophosphamide significantly inhibited tumor growth in a breast cancer model. Mechanistic studies implied that E5 can inhibit the expression of CXCR4 to block the CXCL12-mediated recruitment of endothelial progenitor cells and repress CXCR4 downstream of the Akt and Erk signaling pathway, which are involved in tumor angiogenesis and progression. Further pharmacokinetic evaluation suggested that E5 has an acceptable stability, with a half-life of 10 h in healthy mice. In conclusion, E5 demonstrates a promising anti-tumor effect and could be a potential chemotherapeutic sensitizer to improve current clinical breast cancer therapies.
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148
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Weiss ID, Huff LM, Evbuomwan MO, Xu X, Dang HD, Velez DS, Singh SP, Zhang HH, Gardina PJ, Lee JH, Lindenberg L, Myers TG, Paik CH, Schrump DS, Pittaluga S, Choyke PL, Fojo T, Farber JM. Screening of cancer tissue arrays identifies CXCR4 on adrenocortical carcinoma: correlates with expression and quantification on metastases using 64Cu-plerixafor PET. Oncotarget 2017; 8:73387-73406. [PMID: 29088715 PMCID: PMC5650270 DOI: 10.18632/oncotarget.19945] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/16/2017] [Indexed: 02/04/2023] Open
Abstract
Expression of the chemokine receptor CXCR4 by many cancers correlates with aggressive clinical behavior. As part of the initial studies in a project whose goal was to quantify CXCR4 expression on cancers non-invasively, we examined CXCR4 expression in cancer samples by immunohistochemistry using a validated anti-CXCR4 antibody. Among solid tumors, we found expression of CXCR4 on significant percentages of major types of kidney, lung, and pancreatic adenocarcinomas, and, notably, on metastases of clear cell renal cell carcinoma and squamous cell carcinoma of the lung. We found particularly high expression of CXCR4 on adrenocortical cancer (ACC) metastases. Microarrays of ACC metastases revealed correlations between expression of CXCR4 and other chemokine system genes, particularly CXCR7/ACKR3, which encodes an atypical chemokine receptor that shares a ligand, CXCL12, with CXCR4. A first-in-human study using 64Cu-plerixafor for PET in an ACC patient prior to resection of metastases showed heterogeneity among metastatic nodules and good correlations among PET SUVs, CXCR4 staining, and CXCR4 mRNA. Additionally, we were able to show that CXCR4 expression correlated with the rates of growth of the pulmonary lesions in this patient. Further studies are needed to understand better the role of CXCR4 in ACC and whether targeting it may be beneficial. In this regard, non-invasive methods for assessing CXCR4 expression, such as PET using 64Cu-plerixafor, should be important investigative tools.
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Affiliation(s)
- Ido D Weiss
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Lyn M Huff
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Moses O Evbuomwan
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xin Xu
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Hong Duc Dang
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Daniel S Velez
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Satya P Singh
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Hongwei H Zhang
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Paul J Gardina
- Genomic Technologies Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jae-Ho Lee
- Radiopharmaceutical Laboratory, Nuclear Medicine Division, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Liza Lindenberg
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Timothy G Myers
- Genomic Technologies Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Chang H Paik
- Radiopharmaceutical Laboratory, Nuclear Medicine Division, Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Peter L Choyke
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Tito Fojo
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Joshua M Farber
- Laboratory of Molecular Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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149
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Zhao H, Yang M, Zhao B. Beclin 1 and LC3 as predictive biomarkers for metastatic colorectal carcinoma. Oncotarget 2017; 8:59058-59067. [PMID: 28938618 PMCID: PMC5601714 DOI: 10.18632/oncotarget.19939] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 07/26/2017] [Indexed: 01/01/2023] Open
Abstract
Autophagy is a highly conserved self-destructive process that disassembles dysfunctional or unnecessary cellular components. It plays an important role in cancer metastasis, which is of particular interest considering metastatic disease is the major cause of colorectal carcinoma (CRC) related mortality. Here, we investigated the immunohistochemical expression of autophagy-related protein Beclin 1 and Microtubule-associated protein 1A/1B-light chain 3 (LC3) within surgical CRC specimens, first in a training cohort (205 patients), then in an inner validation cohort (160 patients) and an independent cohort (161 patients). The expressions of Beclin 1 and LC3 were lower in metastatic CRC compared with non-metastatic CRC. Furthermore, we developed an autophagy-based classifier for metastatic prediction. This classifier, including Beclin 1, LC3 and carcinoembryonic antigen (CEA) level, resulted in 82.9% sensitivity and 89.8% specificity for metastatic detection in the training cohort. In the independent cohort, it achieved 77.9% sensitivity and 90.3% specificity in predicting the metastasis of CRC. These results suggested that low expression of Beclin 1 and LC3 contributed to a more aggressive cancer cell phenotype, and our autophagy-based classifier was a reliable tool for metastatic prediction in CRC.
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Affiliation(s)
- Hong Zhao
- Harbin Medical University-Daqing, Heilongjiang, China.,Department of Medical Oncology, The Third Affiliated Hospital of Harbin Medical University, Heilongjiang, China
| | - Maopeng Yang
- Department of Medical Oncology, The Third Affiliated Hospital of Harbin Medical University, Heilongjiang, China
| | - Bin Zhao
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
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150
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De-Colle C, Mönnich D, Welz S, Boeke S, Sipos B, Fend F, Mauz PS, Tinhofer I, Budach V, Jawad JA, Stuschke M, Balermpas P, Rödel C, Grosu AL, Abdollahi A, Debus J, Bayer C, Belka C, Pigorsch S, Combs SE, Lohaus F, Linge A, Krause M, Baumann M, Zips D, Menegakis A. SDF-1/CXCR4 expression in head and neck cancer and outcome after postoperative radiochemotherapy. Clin Transl Radiat Oncol 2017; 5:28-36. [PMID: 29594214 PMCID: PMC5833920 DOI: 10.1016/j.ctro.2017.06.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/06/2017] [Accepted: 06/10/2017] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION Outcome after postoperative radiochemotherapy (RT-CT) for patients with advanced head and neck squamous cell carcinomas (HNSCC) remains unsatisfactory, especially among those with HPV negative tumours. Therefore, new biomarkers are needed to further define subgroups for individualised therapeutic approaches. Preclinical and first clinical observations showed that the chemokine receptor CXCR4 and its ligand SDF-1 (CXCL12) play an important role in tumour cell proliferation, survival, cancer progression, metastasis and treatment resistance. However, the data on the prognostic value of SDF-1/CXCR4 expression for HNSCC are conflicting. The aim of our hypothesis-generating study was to retrospectively explore the prognostic potential of SDF-1/CXCR4 in a well-defined cohort of HNSCC patients collected within the multicenter biomarker study of the German Cancer Consortium Radiation Oncology Group (DKTK-ROG). MATERIAL AND METHODS Patients with stage III and IVA HNSCC of the oral cavity, oropharynx and hypopharynx were treated with resection and adjuvant radiotherapy (RT) with ≥60 Gy and concurrent cisplatin-based chemotherapy (CT). Tissue micro-arrays (TMAs) from a total of 221 patients were generated from surgical specimens, 201 evaluated for the SDF-1 and CXCR4 expression by immunofluorescence and correlated with clinico-pathological and outcome data. RESULTS In univariate and multivariate analyses intracellular SDF-1 expression was associated with lower loco-regional control (LRC) in the entire patient group as well as in the HPV16 DNA negative subgroup. CXCR4 expression showed a trend for lower LRC in the univariate analysis which was not confirmed in the multivariate analysis. Neither for SDF-1 nor CXCR4 expression associations with distant metastasis free or overall survival were found. CONCLUSIONS Our exploratory data support the hypothesis that overexpression of intracellular SDF-1 is an independent negative prognostic biomarker for LRC after postoperative RT-CT in high-risk HNSCC. Prospective validation is warranted and further exploration of SDF-1/CXCR4 as a potential therapeutic target to overcome treatment resistance in HNSCC appears promising.
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Affiliation(s)
- Chiara De-Colle
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
| | - David Mönnich
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Tübingen, Germany
| | - Stefan Welz
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Simon Boeke
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Bence Sipos
- Department of Pathology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Falko Fend
- Department of Pathology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Paul-Stefan Mauz
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Inge Tinhofer
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Berlin, Germany
- Department of Radiooncology and Radiotherapy, Charité University Hospital, Berlin, Germany
| | - Volker Budach
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Berlin, Germany
- Department of Radiooncology and Radiotherapy, Charité University Hospital, Berlin, Germany
| | - Jehad Abu Jawad
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Essen, Germany
- Department of Radiotherapy, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Martin Stuschke
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Essen, Germany
- Department of Radiotherapy, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Panagiotis Balermpas
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Frankfurt, Germany
- Department of Radiotherapy and Oncology, Goethe-University Frankfurt, Germany
| | - Claus Rödel
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Frankfurt, Germany
- Department of Radiotherapy and Oncology, Goethe-University Frankfurt, Germany
| | - Anca-Ligia Grosu
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Freiburg, Germany
- Department of Radiation Oncology, University of Freiburg, Germany
| | - Amir Abdollahi
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
- Heidelberg Ion Therapy Center (HIT), Department of Radiation Oncology, University of Heidelberg Medical School, Germany
- National Center for Tumor Diseases (NCT), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
- Translational Radiation Oncology, University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
| | - Jürgen Debus
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), National Center for Radiation Research in Oncology (NCRO), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
- Heidelberg Ion Therapy Center (HIT), Department of Radiation Oncology, University of Heidelberg Medical School, Germany
- National Center for Tumor Diseases (NCT), University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
- Clinical Cooperation Unit Radiation Oncology, University of Heidelberg Medical School and German Cancer Research Center (DKFZ), Germany
| | - Christine Bayer
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Munich, Germany
| | - Claus Belka
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Munich, Germany
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Steffi Pigorsch
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Munich, Germany
- Department of Radiation Oncology, Technische Universität München, Institute for Innovative Radiation Therapy in Helmholtz-Zentrum München, Germany
| | - Stephanie E. Combs
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Munich, Germany
- Department of Radiation Oncology, Technische Universität München, Institute for Innovative Radiation Therapy in Helmholtz-Zentrum München, Germany
| | - Fabian Lohaus
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Dresden, Germany
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany
- OncoRay – National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Germany
- National Center for Tumor Diseases (NCT), Dresden, Germany
| | - Annett Linge
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Dresden, Germany
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany
- OncoRay – National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Germany
- National Center for Tumor Diseases (NCT), Dresden, Germany
| | - Mechthild Krause
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Dresden, Germany
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany
- OncoRay – National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Germany
- National Center for Tumor Diseases (NCT), Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology – OncoRay, Germany
| | - Michael Baumann
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Dresden, Germany
- Department of Radiotherapy and Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany
- OncoRay – National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden-Rossendorf, Germany
- National Center for Tumor Diseases (NCT), Dresden, Germany
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology – OncoRay, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniel Zips
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
- German Cancer Research Center (DKFZ), Heidelberg and German Cancer Consortium (DKTK), Tübingen, Germany
| | - Apostolos Menegakis
- Radiation Oncology, Medical Faculty and University Hospital, Eberhard Karls University Tübingen, Tübingen, Germany
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