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Prokopovich AK, Litvinova IS, Zubkova AE, Yudkin DV. CXCR4 Is a Potential Target for Anti-HIV Gene Therapy. Int J Mol Sci 2024; 25:1187. [PMID: 38256260 PMCID: PMC10816112 DOI: 10.3390/ijms25021187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
The human immunodeficiency virus (HIV) epidemic is a global issue. The estimated number of people with HIV is 39,000,000 to date. Antiviral therapy is the primary approach to treat the infection. However, it does not allow for a complete elimination of the pathogen. The advances in modern gene therapy methods open up new possibilities of effective therapy. One of these areas of possibility is the development of technologies to prevent virus penetration into the cell. Currently, a number of technologies aimed at either the prevention of virus binding to the CCR5 coreceptor or its knockout are undergoing various stages of clinical trials. Since HIV can also utilize the CXCR4 coreceptor, technologies to modify this receptor are also required. Standard knockout of CXCR4 is impossible due to its physiological significance. This review presents an analysis of interactions between individual amino acids in CXCR4 and physiological ligands and HIV gp120. It also discusses potential targets for gene therapy approaches aimed at modifying the coreceptor.
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Affiliation(s)
- Appolinaria K. Prokopovich
- State Research Center of Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being (FBRI SRC VB “Vector”, Rospotrebnadzor), 630559 Koltsovo, Russia; (A.K.P.); (I.S.L.); (A.E.Z.)
| | - Irina S. Litvinova
- State Research Center of Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being (FBRI SRC VB “Vector”, Rospotrebnadzor), 630559 Koltsovo, Russia; (A.K.P.); (I.S.L.); (A.E.Z.)
| | - Alexandra E. Zubkova
- State Research Center of Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being (FBRI SRC VB “Vector”, Rospotrebnadzor), 630559 Koltsovo, Russia; (A.K.P.); (I.S.L.); (A.E.Z.)
- Department of Natural Sciences, Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia
| | - Dmitry V. Yudkin
- State Research Center of Virology and Biotechnology “Vector”, Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being (FBRI SRC VB “Vector”, Rospotrebnadzor), 630559 Koltsovo, Russia; (A.K.P.); (I.S.L.); (A.E.Z.)
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Saxena S, Singh RK. Chemokines orchestrate tumor cells and the microenvironment to achieve metastatic heterogeneity. Cancer Metastasis Rev 2021; 40:447-476. [PMID: 33959849 PMCID: PMC9863248 DOI: 10.1007/s10555-021-09970-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 04/22/2021] [Indexed: 01/26/2023]
Abstract
Chemokines, a subfamily of the cell cytokines, are low molecular weight proteins known to induce chemotaxis in leukocytes in response to inflammatory and pathogenic signals. A plethora of literature demonstrates that chemokines and their receptors regulate tumor progression and metastasis. With these diverse functionalities, chemokines act as a fundamental link between the tumor cells and their microenvironment. Recent studies demonstrate that the biology of chemokines and their receptor in metastasis is complex as numerous chemokines are involved in regulating site-specific tumor growth and metastasis. Successful treatment of disseminated cancer is a significant challenge. The most crucial problem for treating metastatic cancer is developing therapy regimes capable of overcoming heterogeneity problems within primary tumors and among metastases and within metastases (intralesional). This heterogeneity of malignant tumor cells can be related to metastatic potential, response to chemotherapy or specific immunotherapy, and many other factors. In this review, we have emphasized the role of chemokines in the process of metastasis and metastatic heterogeneity. Individual chemokines may not express the full potential to address metastatic heterogeneity, but chemokine networks need exploration. Understanding the interplay between chemokine-chemokine receptor networks between the tumor cells and their microenvironment is a novel approach to overcome the problem of metastatic heterogeneity. Recent advances in the understanding of chemokine networks pave the way for developing a potential targeted therapeutic strategy to treat metastatic cancer.
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Affiliation(s)
- Sugandha Saxena
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE, 68198-5900, USA
| | - Rakesh K Singh
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, NE, 68198-5900, USA.
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3
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The impact of rare and low-frequency genetic variants in common variable immunodeficiency (CVID). Sci Rep 2021; 11:8308. [PMID: 33859323 PMCID: PMC8050305 DOI: 10.1038/s41598-021-87898-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 04/01/2021] [Indexed: 02/07/2023] Open
Abstract
Next Generation Sequencing (NGS) has uncovered hundreds of common and rare genetic variants involved in complex and rare diseases including immune deficiencies in both an autosomal recessive and autosomal dominant pattern. These rare variants however, cannot be classified clinically, and common variants only marginally contribute to disease susceptibility. In this study, we evaluated the multi-gene panel results of Common Variable Immunodeficiency (CVID) patients and argue that rare variants located in different genes play a more prominent role in disease susceptibility and/or etiology. We performed NGS on DNA extracted from the peripheral blood leukocytes from 103 patients using a panel of 19 CVID-related genes: CARD11, CD19, CD81, ICOS, CTLA4, CXCR4, GATA2, CR2, IRF2BP2, MOGS, MS4A1, NFKB1, NFKB2, PLCG2, TNFRSF13B, TNFRSF13C, TNFSF12, TRNT1 and TTC37. Detected variants were evaluated and classified based on their impact, pathogenicity classification and population frequency as well as the frequency within our study group. NGS revealed 112 different (a total of 227) variants with under 10% population frequency in 103 patients of which 22(19.6%) were classified as benign, 29(25.9%) were classified as likely benign, 4(3.6%) were classified as likely pathogenic and 2(1.8%) were classified as pathogenic. Moreover, 55(49.1%) of the variants were classified as variants of uncertain significance. We also observed different variant frequencies when compared to population frequency databases. Case-control data is not sufficient to unravel the genetic etiology of immune deficiencies. Thus, it is important to understand the incidence of co-occurrence of two or more rare variants to aid in illuminating their potential roles in the pathogenesis of immune deficiencies.
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Characterization of D-17 Canine Osteosarcoma Cell Line and Evaluation of Its Ability to Response to Infective Stressor Used as Alternative Anticancer Therapy. Animals (Basel) 2020; 10:ani10111981. [PMID: 33126659 PMCID: PMC7693922 DOI: 10.3390/ani10111981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 01/04/2023] Open
Abstract
Simple Summary Osteosarcoma (OSA) is the most common primary bone tumor both in dogs and in humans. Canine and human OSA share common characteristics making dogs a good model in comparative oncology. In the last years, in order to reduce animal testing, researchers shifted their attention to in vitro studies using cell lines. Aim of this work is to understand if cells obtained from canine metastatic pulmonary OSA can be a good model for cancer studies, both in humans and dogs. Results of this study were obtained by: the characterization of the expression of genes involved in the innate immune response, the sequencing of a single gene with a key role in immune response and the evaluation of the capacity of these cells to interact with microorganisms that can be used as alternative anticancer therapies. Obtained data were in agreement with those reported in literature regarding the expression of genes both in spontaneous tumors and in vitro cell lines. So, they confirmed the maintenance of cell line D-17 of the pulmonary metastatic OSA characteristics. The selected cells also demonstrated the ability to interact with the microorganism, this suggests that they may be a possible model for the preliminary evaluation of new therapeutic approaches based on the use of bacteria. Abstract Osteosarcoma (OSA) is a rare cancer both in human and dog although the incidence rate in dogs is 27 times higher than in human. Many studies employed D-17 as cell line for in vitro test to evaluate conventional anticancer therapies; however, little is known about D-17 cell line. The aim of our study was to evaluate the basal level of gene expression of pivotal molecules in the innate immune response and cell cycle regulation and to establish the ability of this cell line to react to Salmonella typhimurium (ST) infective stressor. IL15, IL10, iNOS, TLR5, CD14, PTEN and IL18 were expressed in an inconsistent manner among experiments. The other genes under study were expressed in all samples. ST showed ability to penetrate D-17 causing pro-inflammatory response. Our results outline the expression in D-17 of important genes involved in innate immune response. These results provide important data on D-17 basal gene expression profile useful for in vitro preliminary evaluation of new therapeutic approaches.
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Okurut S, Boulware DR, Olobo J, Meya DB. Landmark clinical observations and immunopathogenesis pathways linked to HIV and Cryptococcus fatal central nervous system co-infection. Mycoses 2020; 63:840-853. [PMID: 32472727 PMCID: PMC7416908 DOI: 10.1111/myc.13122] [Citation(s) in RCA: 16] [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: 03/11/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 12/13/2022]
Abstract
Cryptococcal meningitis remains one of the leading causes of death among HIV-infected adults in the fourth decade of HIV era in sub-Saharan Africa, contributing to 10%-20% of global HIV-related deaths. Despite widespread use and early induction of ART among HIV-infected adults, incidence of cryptococcosis remains significant in those with advanced HIV disease. Cryptococcus species that causes fatal infection follows systemic spread from initial environmental acquired infection in lungs to antigenaemia and fungaemia in circulation prior to establishment of often fatal disease, cryptococcal meningitis in the CNS. Cryptococcus person-to-person transmission is uncommon, and deaths related to blood infection without CNS involvement are rare. Keen to the persistent high mortality associated with HIV-cryptococcal meningitis, seizures are common among a third of the patients, altered mental status is frequent, anaemia is prevalent with ensuing brain hypoxia and at autopsy, brain fibrosis and infarction are evident. In addition, fungal burden is 3-to-4-fold higher in those with seizures. And high immune activation together with exacerbated inflammation and elevated PD-1/PD-L immune checkpoint expression is immunomodulated phenotypes elevated in CSF relative to blood. Lastly, though multiple Cryptococcus species cause disease in this setting, observations are mostly generalised to cryptococcal infection/meningitis or regional dominant species (C neoformans or gattii complex) that may limit our understanding of interspecies differences in infection, progression, treatment or recovery outcome. Together, these factors and underlying mechanisms are hypotheses generating for research to find targets to prevent infection or adequate therapy to prevent persistent high mortality with current optimal therapy.
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Affiliation(s)
- Samuel Okurut
- Research DepartmentInfectious Diseases InstituteMakerere UniversityKampalaUganda
- Department of MicrobiologySchool of Biomedical SciencesCollege of Health SciencesMakerere UniversityKampalaUganda
| | - David R. Boulware
- Division of Infectious Diseases and International MedicineDepartment of MedicineUniversity of MinnesotaMinneapolisMinnesota
| | - Joseph Olobo
- Department of Immunology and Molecular BiologySchool of Biomedical SciencesCollege of Health SciencesMakerere UniversityKampalaUganda
| | - David B. Meya
- Research DepartmentInfectious Diseases InstituteMakerere UniversityKampalaUganda
- Division of Infectious Diseases and International MedicineDepartment of MedicineUniversity of MinnesotaMinneapolisMinnesota
- Department of MedicineSchool of MedicineCollege of Health SciencesMakerere UniversityKampalaUganda
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6
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Probabilistic cell-type assignment of single-cell RNA-seq for tumor microenvironment profiling. Nat Methods 2019; 16:1007-1015. [PMID: 31501550 DOI: 10.1038/s41592-019-0529-1] [Citation(s) in RCA: 169] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 07/16/2019] [Indexed: 01/23/2023]
Abstract
Single-cell RNA sequencing has enabled the decomposition of complex tissues into functionally distinct cell types. Often, investigators wish to assign cells to cell types through unsupervised clustering followed by manual annotation or via 'mapping' to existing data. However, manual interpretation scales poorly to large datasets, mapping approaches require purified or pre-annotated data and both are prone to batch effects. To overcome these issues, we present CellAssign, a probabilistic model that leverages prior knowledge of cell-type marker genes to annotate single-cell RNA sequencing data into predefined or de novo cell types. CellAssign automates the process of assigning cells in a highly scalable manner across large datasets while controlling for batch and sample effects. We demonstrate the advantages of CellAssign through extensive simulations and analysis of tumor microenvironment composition in high-grade serous ovarian cancer and follicular lymphoma.
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SAH VAISHALI, KUMAR AMIT, KUMAR RAVI, PATHAK SHALUKUMARI, WANI SAJADAHMAD, SAHU AMITRANJAN, UPMANYU VIKRAMADITYA, SAHOO NIHARRANJAN, BHUSHAN BHARAT. Exploration of genetic basis of differential immune response to CSF vaccination in desi (indigenous) piglets using RNA-Seq approach. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2017. [DOI: 10.56093/ijans.v87i11.75820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
In the present study, the transcriptome profiling of peripheral blood mononuclear cells (PBMCs) of indigenous piglets against classical swine fever (CSF) vaccination was performed for elucidating the genetic basis of their differential humoral immunity. Piglets were vaccinated with lapinised strain of CSF virus (CSFV) followed by measurement of humoral immune response using c-ELISA at 28th day post vaccination (28dpv). The RNA sequencing data was analysed using established pipeline to determine set of differentially expressed genes (DEGs) in high responder as compared to low responder piglet. The differentially expressed important immune molecules were involved in regulating important pathways including antigen processing and presentation, T cell receptor signalling, B cell development, activation and signaling genes. The genes with differential expression also included TLR 3, 6, 7, 8, 9, and antiviral molecules such as MX, and ISG (Interferon stimulated genes) family members. The proteinprotein interaction of the immune genes was extracted for network representation. Most of the immune genes involved showed upregulation except the genes for antigen processing and presentation and T cell receptor signaling that were downregulated in the high responder. The immunologically important genes namely IFIT1, IFIT5, TAPBP, and TLR7 were validated using qRT-PCT and were observed to be in concordance with the RNA Seq results.
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Paris RM, Milagres LG, Moysi E, Okulicz JF, Agan BK, Ganesan A, Petrovas C, Koup RA. Lower Baseline Germinal Center Activity and Preserved Th1 Immunity Are Associated With Hepatitis B Vaccine Response in Treated HIV Infection. Pathog Immun 2017; 2:66-88. [PMID: 28580437 PMCID: PMC5450971 DOI: 10.20411/pai.v2i1.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Why HIV-infected individuals have poor responses to standard dose and schedule hepatitis B virus immunization is not well understood. METHODS We compared the serologic and cellular immune profiles of treated HIV-infected individuals with similar durations of infection and preserved CD4 counts (> 350 cells/microliter) by hepatitis B vaccine (HBV) response before and after vaccination. RESULTS Similar levels of immune activation and plasma cytokine profile were found between non-responders and responders. The baseline plasma levels of CXCL-13, a surrogate of germinal center reactivity, were significantly lower in HBV responders compared to HBV non-responders and were a predictor of both vaccine response and titer. Furthermore, response to HBV vaccination was associated with a significantly higher frequency of circulating IgGhigh memory B cells post vaccination and preserved Th1 antigen-specific T-cell responses. CONCLUSIONS Taken together, our data suggest that preserved Th1 responses are associated with hepatitis B vaccine response in treated HIV infection.
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Affiliation(s)
- Robert M Paris
- US Military Malaria Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland.,Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
| | - Lucimar G Milagres
- Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland.,Department of Microbiology and Immunology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eirini Moysi
- Tissue Analysis Core, Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
| | - Jason F Okulicz
- Infectious Diseases Service and HIV Medical Evaluation Unit, San Antonio Military Medical Center, San Antonio, Texas
| | - Brian K Agan
- Infectious Diseases Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Anu Ganesan
- Infectious Diseases Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Constantinos Petrovas
- Tissue Analysis Core, Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
| | - Richard A Koup
- Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
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9
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Bogaert DJA, De Bruyne M, Debacker V, Depuydt P, De Preter K, Bonroy C, Philippé J, Bordon V, Lambrecht BN, Kerre T, Cerutti A, Vermaelen KY, Haerynck F, Dullaers M. The immunophenotypic fingerprint of patients with primary antibody deficiencies is partially present in their asymptomatic first-degree relatives. Haematologica 2016; 102:192-202. [PMID: 27634199 DOI: 10.3324/haematol.2016.149112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 09/08/2016] [Indexed: 11/09/2022] Open
Abstract
The etiology of primary antibody deficiencies is largely unknown. Beside rare monogenic forms, the majority of cases seem to have a more complex genetic basis. Whereas common variable immunodeficiency has been investigated in depth, there are only a few reports on milder primary antibody deficiencies such as idiopathic primary hypogammaglobulinemia and IgG subclass deficiency. We performed flow cytometric immunophenotyping in 33 patients with common variable immunodeficiency, 23 with idiopathic primary hypogammaglobulinemia and 21 with IgG subclass deficiency, as well as in 47 asymptomatic first-degree family members of patients and 101 unrelated healthy controls. All three groups of patients showed decreased memory B- and naïve T-cell subsets and decreased B-cell activating factor receptor expression. In contrast, circulating follicular helper T-cell frequency and expression of inducible T-cell co-stimulator and chemokine receptors were only significantly altered in patients with common variable immunodeficiency. Asymptomatic first-degree family members of patients demonstrated similar, albeit intermediate, alterations in naïve and memory B- and T-cell subsets. About 13% of asymptomatic relatives had an abnormal peripheral B-cell composition. Furthermore, asymptomatic relatives showed decreased levels of CD4+ recent thymic emigrants and increased central memory T cells. Serum IgG and IgM levels were also significantly lower in asymptomatic relatives than in healthy controls. We conclude that, in our cohort, the immunophenotypic landscape of primary antibody deficiencies comprises a spectrum, in which some alterations are shared between all primary antibody deficiencies whereas others are only associated with common variable immunodeficiency. Importantly, asymptomatic first-degree family members of patients were found to have an intermediate phenotype for peripheral B- and T-cell subsets.
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Affiliation(s)
- Delfien J A Bogaert
- Clinical Immunology Research Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium.,Department of Pediatric Immunology and Pulmonology, Centre for Primary Immunodeficiency, Jeffrey Modell Diagnosis and Research Centre, Ghent University Hospital, Belgium.,Center for Medical Genetics, Ghent University and Ghent University Hospital, Belgium.,Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium
| | - Marieke De Bruyne
- Clinical Immunology Research Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium.,Center for Medical Genetics, Ghent University and Ghent University Hospital, Belgium
| | - Veronique Debacker
- Clinical Immunology Research Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium.,Tumor Immunology Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium
| | - Pauline Depuydt
- Center for Medical Genetics, Ghent University and Ghent University Hospital, Belgium.,Cancer Research Institute, Ghent University, Belgium
| | - Katleen De Preter
- Center for Medical Genetics, Ghent University and Ghent University Hospital, Belgium.,Cancer Research Institute, Ghent University, Belgium
| | - Carolien Bonroy
- Department of Laboratory Medicine, Ghent University Hospital, Belgium
| | - Jan Philippé
- Department of Laboratory Medicine, Ghent University Hospital, Belgium.,Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Belgium
| | - Victoria Bordon
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, Ghent University Hospital, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium.,Department of Internal Medicine, Ghent University, Belgium.,Department of Pulmonology, Ghent University Hospital, Belgium
| | - Tessa Kerre
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Belgium.,Department of Internal Medicine, Ghent University, Belgium.,Department of Hematology, Ghent University Hospital, Belgium
| | - Andrea Cerutti
- Department of Medicine, The Immunology Institute, Mount Sinai School of Medicine, New York, NY, USA and.,B Cell Biology Laboratory, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Karim Y Vermaelen
- Tumor Immunology Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium.,Department of Internal Medicine, Ghent University, Belgium.,Department of Pulmonology, Ghent University Hospital, Belgium
| | - Filomeen Haerynck
- Clinical Immunology Research Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium.,Department of Pediatric Immunology and Pulmonology, Centre for Primary Immunodeficiency, Jeffrey Modell Diagnosis and Research Centre, Ghent University Hospital, Belgium
| | - Melissa Dullaers
- Clinical Immunology Research Laboratory, Department of Pulmonary Medicine, Ghent University Hospital, Belgium .,Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium.,Department of Internal Medicine, Ghent University, Belgium
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10
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CXCR4 signaling in health and disease. Immunol Lett 2016; 177:6-15. [PMID: 27363619 DOI: 10.1016/j.imlet.2016.06.006] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 12/23/2022]
Abstract
Chemokines and chemokine receptors regulate multiple processes such morphogenesis, angiogenesis and immune responses. Among the chemokine receptors, CXCR4 stands out for its pleiotropic roles as well as for its involvement in several pathological conditions, including immune diseases, viral infections and cancer. For these reasons, CXCR4 represents a crucial target in drug development. In this review, we discuss of CXCR4 receptor properties and signaling in health and diseases, focusing on the WHIM syndrome, an inherited immunodeficiency caused by mutations of the CXCR4 gene.
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11
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Kutukculer N, Azarsiz E, Aksu G, Karaca NE. CD4+CD25+Foxp3+ T regulatory cells, Th1 (CCR5, IL-2, IFN-γ) and Th2 (CCR4, IL-4, Il-13) type chemokine receptors and intracellular cytokines in children with common variable immunodeficiency. Int J Immunopathol Pharmacol 2015; 29:241-51. [PMID: 26684629 DOI: 10.1177/0394632015617064] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022] Open
Abstract
Common variable immunodeficiency (CVID) is a heterogeneous group of primary antibody deficiencies characterized by decreased serum immunoglobulin G along with a decrease in serum IgA and/or IgM, defective specific antibody production, and recurrent bacterial infections. Abnormal lymphocyte trafficking, dysregulated cellular responses to chemokines, and uncontrolled T cell polarization may be involved in the pathogenesis and may help to understand the clinical complications. We evaluated T helper cell subsets (chemokine receptors CCR4, CCR5, and CCR7), expressions on T lymphocytes, intracellular cytokines - IL-2, IL-4, IL-13, IFN- γ-on CD4(+) T cells, and expression of CD4(+)CD25(+)Foxp3(+) regulatory T cells of 20 CVID patients and 26 healthy controls. Autoimmune clinical findings and other complications were also determined. Percentages and absolute numbers of CD4(+)CD25(+) Foxp3(+) cells did not show any significant difference between CVID cases and healthy controls nor between severe and moderate disease patients. The only significant difference regarding Th1 and Th2 type intracellular cytokines was the decreased absolute numbers of CD3(+)CD4(+)IL4(+) cells in CVID cases. There were some findings about T helper cell type dominance in CVID patients such as positive correlation between hepatomegaly and high IL-2 and IFN-γ in CD3(+)CD4(+) cells and very high expression of CCR5 (Th1) on CD3(+)CD4(+) cells in patients with granuloma. Th1 (CCR5) and Th2 (CCR4) type chemokine receptors did not show any dominance in CVID cases. However, frequencies of CCR7 expressing CD3(+) T cells, CD3(+)CD4(+) T helper cells and CD3(+)CD8(+) T cytotoxic cells were significantly lower in severe CVID patients. In addition, presence of autoimmune clinical findings was negatively correlated with CCR7(+) cells. As CCR7 is a key mediator balancing immunity and tolerance in the immune system, the abnormality of this mediator may contribute to the profound immune dysregulation seen in CVID. In addition, Th1 cells seem to be more involved in the disease pathogenesis than Th2 cells.
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Affiliation(s)
- Necil Kutukculer
- Ege University, Faculty of Medicine, Department of Pediatric Immunology, Izmir, Turkey
| | - Elif Azarsiz
- Ege University, Faculty of Medicine, Department of Pediatric Immunology, Izmir, Turkey
| | - Guzide Aksu
- Ege University, Faculty of Medicine, Department of Pediatric Immunology, Izmir, Turkey
| | - Neslihan Edeer Karaca
- Ege University, Faculty of Medicine, Department of Pediatric Immunology, Izmir, Turkey
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Cuesta-Mateos C, Loscertales J, Kreutzman A, Colom-Fernández B, Portero-Sáinz I, Pérez-Villar JJ, Terrón F, Muñoz-Calleja C. Preclinical activity of anti-CCR7 immunotherapy in patients with high-risk chronic lymphocytic leukemia. Cancer Immunol Immunother 2015; 64:665-76. [PMID: 25724841 PMCID: PMC11029146 DOI: 10.1007/s00262-015-1670-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/14/2015] [Indexed: 01/05/2023]
Abstract
Chronic lymphocytic leukemia (CLL) with deletions of the p53 locus on chromosome 17 and/or refractory to fludarabine chemoimmunotherapy remains a major clinical problem with few therapeutic options. Currently, these types of CLL are treated with approaches that do not target the p53 pathway, such as small molecules and monoclonal antibodies (mAb). We have previously postulated anti-CCR7 mAb therapy as a novel CLL treatment. In the present study, we evaluated the in vitro efficacy of anti-CCR7 mAb as a single agent in CLL patients with high-risk cytogenetics and/or refractory to fludarabine, by measuring CCR7 surface expression and complement-dependent cytotoxicity. Our results demonstrate that CCR7 is highly expressed in challenging and heavily treated CLL patients. In addition, the complement-mediated mechanism of action of this mAb effectively eradicates CLL cells while sparing subsets of T cells in these patients. Moreover, this mAb outperformed the activity of alemtuzumab, the mAb with the highest efficacy in these groups. Finally, in vitro activity was also demonstrated in patients with a disease refractory to both fludarabine and alemtuzumab, and patients harboring 11q22 deletion. Our results propose that anti-CCR7 mAb is an effective and promising future treatment in high-risk CLL.
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MESH Headings
- Alemtuzumab
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Monoclonal, Murine-Derived/pharmacology
- Genes, p53
- Humans
- Immunophenotyping
- Immunotherapy/methods
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Receptors, CCR7/antagonists & inhibitors
- Receptors, CCR7/biosynthesis
- Receptors, CCR7/genetics
- Receptors, CCR7/immunology
- Risk Factors
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Affiliation(s)
- Carlos Cuesta-Mateos
- Servicio de Inmunología, Departamento de Inmunología, Instituto de Investigación Sanitaria Hospital Universitario de La Princesa, C/Diego de León 62, 28006, Madrid, Spain,
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Ma S, Shi Y, Pang Y, Dong F, Cheng H, Hao S, Xu J, Zhu X, Yuan W, Cheng T, Zheng G. Notch1-induced T cell leukemia can be potentiated by microenvironmental cues in the spleen. J Hematol Oncol 2014; 7:71. [PMID: 25366136 PMCID: PMC4229605 DOI: 10.1186/s13045-014-0071-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 09/21/2014] [Indexed: 01/10/2023] Open
Abstract
Background Leukemia is a systemic malignancy originated from hematopoietic cells. The extracellular environment has great impacts on the survival, proliferation and dissemination of leukemia cells. The spleen is an important organ for extramedullary hematopoiesis and a common infiltration site in lymphoid malignancies. Splenomegaly, frequently observed in T cell acute lymphoblastic leukemia (T-ALL), is associated with poor prognosis. However, how the spleen microenvironment distinctly affects T-ALL cells as opposed to bone marrow (BM) microenvironment has not been addressed. Methods A Notch1-induced mouse T-ALL model was applied in this study. Flow cytometry and two-photon fluorescence microscopy were used to analyze early distribution of T-ALL cells. MILLIPLEX® MAP Multiplex Immunoassay was performed to measure cytokine/chemokine levels in different microenvironments. Transwell and co-culture experiments were used to test the effects of splenic microenvironment in vitro. Splenectomy was performed to assess the organ specific impact on the survival of T-ALL-bearing mice. Results More leukemia cells were detected in the spleen than in the BM after injection of T-ALL cells by flow cytometry and two-photon fluorescence microscopy analysis. By screening a panel of cytokines/chemokines, a higher level of MIP-3β was found in the splenic microenvironment than BM microenvironment. In vitro transwell experiment further confirmed that MIP-3β recruits T-ALL cells which express a high level of MIP-3β receptor, CCR7. Furthermore, the splenic microenvironment stimulates T-ALL cells to express a higher level of MIP-3β, which further recruits T-ALL cells to the spleen. Co-culture experiment found that the splenic microenvironment more potently stimulated the proliferation and migration of T-ALL cells than BM. Moreover, the mice transplanted with T-ALL cells from the spleen had a shorter life span than those transplanted from BM, suggesting increased potency of the T-ALL cells induced by the splenic microenvironment. In addition, splenectomy prolonged the survival of leukemic mice. Conclusions Our study demonstrates an organ specific effect on leukemia development. Specifically, T-ALL cells can be potentiated by splenic microenvironment and thus spleen may serve as a target organ for the treatment of some types of leukemia. Electronic supplementary material The online version of this article (doi:10.1186/s13045-014-0071-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shihui Ma
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
| | - Yingxu Shi
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China. .,Current address of Yingxu Shi: Affiliated Hospital Clinical Laboratory, Inner Mongolian Medical University, Hohhot, China.
| | - Yakun Pang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
| | - Fang Dong
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
| | - Hui Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
| | - Sha Hao
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
| | - Jing Xu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
| | - Xiaofan Zhu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China. .,Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Weiping Yuan
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China. .,Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China. .,Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Guoguang Zheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China. .,Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Jiang J, Champion CI, Wei B, Liu G, Kelly KA. CD8⁺CXCR5⁺ T cells regulate pathology in the genital tract. Infect Dis Obstet Gynecol 2013; 2013:813238. [PMID: 23365491 PMCID: PMC3556439 DOI: 10.1155/2013/813238] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2012] [Revised: 09/29/2012] [Accepted: 11/21/2012] [Indexed: 11/20/2022] Open
Abstract
We have identified a CD8⁺CXCR5⁺ T cell that prevents the development of oviduct dilation following C. muridarum genital infection. Phenotypic studies show that CD8⁺CXCR5⁺ cells express markers of T regulatory cells (FoxP3, CD25, and GITR) but do not express a necessary component of cytotoxic cells (perforin). Cxcr5⁻/⁻ mice have significantly lower numbers of CD8⁺ cells and lack the CD8⁺CXCR5⁺ population while the total number of CD4⁺ cells is equivalent between mouse strains. The transfer of CD8⁺ splenocytes from WT mice reduces the oviduct dilation seen in Cxcr5⁻/⁻ mice following C. muridarum infection. Future studies will investigate the mechanism by which this cell type regulates genital tract pathology.
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Affiliation(s)
- Janina Jiang
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA
| | - Cheryl I. Champion
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA
| | - Bo Wei
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA
- National Vaccine and Serum Institute, China National Biotec Group (CNBG), Beijing 100029, China
| | - Guangchao Liu
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA
| | - Kathleen A. Kelly
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA
- California NanoSystems Institute, University of California, 570 Westwood Plaza, Los Angles, CA 90095, USA
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Expression of CXCL12 receptors in B cells from Mexican Mestizos patients with systemic Lupus erythematosus. J Transl Med 2012; 10:251. [PMID: 23244336 PMCID: PMC3571925 DOI: 10.1186/1479-5876-10-251] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Accepted: 12/14/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease characterized by B-cell hyper-reactivity and the production of pathogenic anti-nuclear-directed auto-antibodies (Abs). B-cell ontogeny is partly dependent on the CXCL12/CXCR4 axis for which the contribution to SLE pathogenesis remains unclear. CXCR7, the novel receptor for CXCL12, is differentially expressed among memory B-cell subsets. However, its biological role in SLE remains to be explored. METHODS Relative CXCR4 and CXCR7 expression levels were compared by quantitative PCR in leukocytes from blood samples of 41 Mexican Mestizos patients with SLE and 45 ethnicity-matched healthy subjects. Intracellular and membrane expression of both receptors was analyzed by flow cytometry in naive and Ab-secreting B cells. B-cell responsiveness to CXCL12 was investigated using Transwell-based chemotaxis assays. Data were analyzed using the Kruskal-Wallis test for comparisons of values amongst healthy controls and patients with inactive or active SLE, and non-parametrically using the Mann-Whitney U-test for multiple comparisons and unpaired samples. Correlations were determined by Spearman's ranking. RESULT SLE leukocytes displayed reduced levels of CXCR4 and CXCR7 transcripts. In SLE patients, a significant defect in CXCR4 expression was detected at the surface of naive and Ab-secreting B cells, associated with an abnormal intracellular localization of the receptor. CXCR7 predominantly localized in cytosolic compartments of B cells from healthy and SLE individuals. Disease activity did not impact on these expression patterns. Altered receptor compartmentalization correlated with an impaired CXCL12-promoted migration of SLE B cells. CONCLUSIONS Our data highlight a down-regulation of CXCL12 receptors on circulating B cells from SLE patients that likely influences their migratory behavior and distribution.
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Frölich D, Blassfeld D, Reiter K, Giesecke C, Daridon C, Mei HE, Burmester GR, Goldenberg DM, Salama A, Dörner T. The anti-CD74 humanized monoclonal antibody, milatuzumab, which targets the invariant chain of MHC II complexes, alters B-cell proliferation, migration, and adhesion molecule expression. Arthritis Res Ther 2012; 14:R54. [PMID: 22404985 PMCID: PMC3446420 DOI: 10.1186/ar3767] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2011] [Revised: 02/25/2012] [Accepted: 03/09/2012] [Indexed: 01/21/2023] Open
Abstract
Introduction Targeting CD74 as the invariant chain of major histocompatibility complexes (MHC) became possible by the availability of a specific humanized monoclonal antibody, milatuzumab, which is under investigation in patients with hematological neoplasms. CD74 has been reported to regulate chemo-attractant migration of macrophages and dendritic cells, while the role of CD74 on peripheral naïve and memory B cells also expressing CD74 remains unknown. Therefore, the current study addressed the influence of milatuzumab on B-cell proliferation, chemo-attractant migration, and adhesion molecule expression. Methods Surface expression of CD74 on CD27- naïve and CD27+ memory B cells as well as other peripheral blood mononuclear cells (PBMCs) obtained from normals, including the co-expression of CD44, CXCR4, and the adhesion molecules CD62L, β7-integrin, β1-integrin and CD9 were studied after binding of milatuzumab using multicolor flow cytometry. The influence of the antibody on B-cell proliferation and migration was analyzed in vitro in detail. Results In addition to monocytes, milatuzumab also specifically bound to human peripheral B cells, with a higher intensity on CD27+ memory versus CD27- naïve B cells. The antibody reduced B-cell proliferation significantly but moderately, induced enhanced spontaneous and CXCL12-dependent migration together with changes in the expression of adhesion molecules, CD44, β7-integrin and CD62L, mainly of CD27- naïve B cells. This was independent of macrophage migration-inhibitory factor as a ligand of CD74/CD44 complexes. Conclusions Milatuzumab leads to modestly reduced proliferation, alterations in migration, and adhesion molecule expression preferentially of CD27- naïve B cells. It thus may be a candidate antibody for the autoimmune disease therapy by modifying B cell functions.
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Affiliation(s)
- Daniela Frölich
- Department of Medicine, Rheumatology and Clinical Immunology, Charité - University Medicine Berlin, Chariteplatz 1, Berlin 10117, Germany
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