1
|
Pfeffer PE, Ho TR, Mann EH, Kelly FJ, Sehlstedt M, Pourazar J, Dove RE, Sandstrom T, Mudway IS, Hawrylowicz CM. Urban particulate matter stimulation of human dendritic cells enhances priming of naive CD8 T lymphocytes. Immunology 2018; 153:502-512. [PMID: 29044495 PMCID: PMC5838419 DOI: 10.1111/imm.12852] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 02/06/2023] Open
Abstract
Epidemiological studies have consistently shown associations between elevated concentrations of urban particulate matter (UPM) air pollution and exacerbations of asthma and chronic obstructive pulmonary disease, which are both associated with viral respiratory infections. The effects of UPM on dendritic cell (DC) -stimulated CD4 T lymphocytes have been investigated previously, but little work has focused on CD8 T-lymphocyte responses despite their importance in anti-viral immunity. To address this, we examined the effects of UPM on DC-stimulated naive CD8 T-cell responses. Expression of the maturation/activation markers CD83, CCR7, CD40 and MHC class I on human myeloid DCs (mDCs) was characterized by flow cytometry after stimulation with UPMin vitro in the presence/absence of granulocyte-macrophage colony-stimulating factor (GM-CSF). The capacity of these mDCs to stimulate naive CD8 T-lymphocyte responses in allogeneic co-culture was then assessed by measuring T-cell cytokine secretion using cytometric bead array, and proliferation and frequency of interferon-γ (IFN-γ)-producing T lymphocytes by flow cytometry. Treatment of mDCs with UPM increased expression of CD83 and CCR7, but not MHC class I. In allogeneic co-cultures, UPM treatment of mDCs enhanced CD8 T-cell proliferation and the frequency of IFN-γ+ cells. The secretion of tumour necrosis factor-α, interleukin-13, Granzyme A and Granzyme B were also increased. GM-CSF alone, and in concert with UPM, enhanced many of these T-cell functions. The PM-induced increase in Granzyme A was confirmed in a human experimental diesel exposure study. These data demonstrate that UPM treatment of mDCs enhances priming of naive CD8 T lymphocytes and increases production of pro-inflammatory cytokines. Such UPM-induced stimulation of CD8 cells may potentiate T-lymphocyte cytotoxic responses upon concurrent airway infection, increasing bystander damage to the airways.
Collapse
Affiliation(s)
- Paul E. Pfeffer
- MRC and Asthma UK Centre for Allergic Mechanisms of AsthmaKing's College LondonGuy's HospitalLondonUK
- Present address:
William Harvey Research InstituteQueen Mary University of LondonLondonEC1M 6BQUK
| | - Tzer R. Ho
- MRC and Asthma UK Centre for Allergic Mechanisms of AsthmaKing's College LondonGuy's HospitalLondonUK
| | - Elizabeth H. Mann
- MRC and Asthma UK Centre for Allergic Mechanisms of AsthmaKing's College LondonGuy's HospitalLondonUK
| | - Frank J. Kelly
- MRC and Asthma UK Centre for Allergic Mechanisms of AsthmaKing's College LondonGuy's HospitalLondonUK
- Environmental Research GroupMRC‐PHE Centre for Environment and HealthKing's College LondonLondonUK
- NIHR Health Protection Research Unit in Health Impact of Environmental HazardsFaculty of Life Sciences and MedicineKing's College LondonLondonUK
| | - Maria Sehlstedt
- Division of MedicineDepartment of Public Health and Clinical MedicineUmeå UniversityUmeåSweden
| | - Jamshid Pourazar
- Division of MedicineDepartment of Public Health and Clinical MedicineUmeå UniversityUmeåSweden
| | - Rosamund E. Dove
- Environmental Research GroupMRC‐PHE Centre for Environment and HealthKing's College LondonLondonUK
- NIHR Health Protection Research Unit in Health Impact of Environmental HazardsFaculty of Life Sciences and MedicineKing's College LondonLondonUK
| | - Thomas Sandstrom
- Division of MedicineDepartment of Public Health and Clinical MedicineUmeå UniversityUmeåSweden
| | - Ian S. Mudway
- Environmental Research GroupMRC‐PHE Centre for Environment and HealthKing's College LondonLondonUK
- NIHR Health Protection Research Unit in Health Impact of Environmental HazardsFaculty of Life Sciences and MedicineKing's College LondonLondonUK
| | - Catherine M. Hawrylowicz
- MRC and Asthma UK Centre for Allergic Mechanisms of AsthmaKing's College LondonGuy's HospitalLondonUK
- NIHR Health Protection Research Unit in Health Impact of Environmental HazardsFaculty of Life Sciences and MedicineKing's College LondonLondonUK
| |
Collapse
|
2
|
Armitage CW, O'Meara CP, Beagley KW. Chlamydia pneumoniae and Chlamydia Trachomatis Infection Differentially Modulates Human Dendritic Cell Line (MUTZ) Differentiation and Activation. Scand J Immunol 2015; 82:48-54. [PMID: 25833314 DOI: 10.1111/sji.12295] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 03/19/2015] [Indexed: 11/27/2022]
Abstract
Chlamydia trachomatis and Chlamydia pneumoniae are important human pathogens that infect the urogenital/anorectal and respiratory tracts, respectively. Whilst the ability of these bacteria to infect epithelia is well defined, there is also considerable evidence of infection of leucocytes, including dendritic cells (DCs). Using a human dendritic cell line (MUTZ), we demonstrate that the infection and replication of chlamydiae inside DCs is species and serovar specific and that live infection with C. pneumoniae is required to upregulate costimulatory markers CD80, CD83 and human leucocyte antigen (HLA)-DR on MUTZ cells, as well as induce secretion of interleukin (IL)-2, IL-6, IL-8, IL-12 (p70), interferon-gamma and tumour necrosis factor-alpha Conversely, C. trachomatis serovar D failed to upregulate DC costimulatory markers, but did induce secretion of high concentrations of IL-8. Interestingly, we also observed that infection of MUTZ cells with C. pneumoniae or C. trachomatis serovar L2, whilst not replicative, remained infectious and upregulated lymph node migratory marker CCR7 mRNA. Taken together, these data confirm the findings of other groups using primary DCs and demonstrate the utility of MUTZ cells for further studies of chlamydial infection.
Collapse
Affiliation(s)
- C W Armitage
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Qld, Australia
| | - C P O'Meara
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Qld, Australia
| | - K W Beagley
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Qld, Australia
| |
Collapse
|
3
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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
Collapse
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,
| | | | | | | | | | | | | | | |
Collapse
|
4
|
Schinnerling K, Geelhaar-Karsch A, Allers K, Friebel J, Conrad K, Loddenkemper C, Kühl AA, Erben U, Ignatius R, Moos V, Schneider T. Role of dendritic cells in the pathogenesis of Whipple's disease. Infect Immun 2015; 83:482-91. [PMID: 25385798 PMCID: PMC4294246 DOI: 10.1128/iai.02463-14] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 11/05/2014] [Indexed: 01/28/2023] Open
Abstract
Accumulation of Tropheryma whipplei-stuffed macrophages in the duodenum, impaired T. whipplei-specific Th1 responses, and weak secretion of interleukin-12 (IL-12) are hallmarks of classical Whipple's disease (CWD). This study addresses dendritic cell (DC) functionality during CWD. We documented composition, distribution, and functionality of DC ex vivo or after in vitro maturation by fluorescence-activated cell sorting (FACS) and by immunohistochemistry in situ. A decrease in peripheral DC of untreated CWD patients compared to healthy donors was due to reduced CD11c(high) myeloid DC (M-DC). Decreased maturation markers CD83, CD86, and CCR7, as well as low IL-12 production in response to stimulation, disclosed an immature M-DC phenotype. In vitro-generated monocyte-derived DC from CWD patients showed normal maturation and T cell-stimulatory capacity under proinflammatory conditions but produced less IL-12 and failed to activate T. whipplei-specific Th1 cells. In duodenal and lymphoid tissues, T. whipplei was found within immature DC-SIGN(+) DC. DC and proliferating lymphocytes were reduced in lymph nodes of CWD patients compared to levels in controls. Our results indicate that dysfunctional IL-12 production by DC provides suboptimal conditions for priming of T. whipplei-specific T cells during CWD and that immature DC carrying T. whipplei contribute to the dissemination of the bacterium.
Collapse
Affiliation(s)
- Katina Schinnerling
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | | | - Kristina Allers
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | - Julian Friebel
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | - Kristina Conrad
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | | | - Anja A Kühl
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | - Ulrike Erben
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | - Ralf Ignatius
- Institut für Tropenmedizin und Internationale Gesundheit, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Verena Moos
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| | - Thomas Schneider
- Medizinische Klinik I, Charité-Universitätsmedizin Berlin, CBF, Berlin, Germany
| |
Collapse
|
5
|
Besedovsky L, Linz B, Dimitrov S, Groch S, Born J, Lange T. Cortisol increases CXCR4 expression but does not affect CD62L and CCR7 levels on specific T cell subsets in humans. Am J Physiol Endocrinol Metab 2014; 306:E1322-9. [PMID: 24760986 DOI: 10.1152/ajpendo.00678.2013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Glucocorticoids are well known to affect T cell migration, leading to a redistribution of the cells from blood to the bone marrow, accompanied by a concurrent suppression of lymph node homing. Despite numerous studies in this context, with most of them employing synthetic glucocorticoids in nonphysiological doses, the mechanisms of this redistribution are not well understood. Here, we investigated in healthy men the impact of cortisol at physiological concentrations on the expression of different migration molecules on eight T cell subpopulations in vivo and in vitro. Hydrocortisone (cortisol, 22 mg) infused during nocturnal rest when endogenous cortisol levels are low, compared with placebo, differentially reduced numbers of T cell subsets, with naive CD4(+) and CD8(+) subsets exhibiting the strongest reduction. Hydrocortisone in vivo and in vitro increased CXCR4 expression, which presumably mediates the recruitment of T cells to the bone marrow. Expression of the lymph node homing receptor CD62L on total CD3(+) and CD8(+) T cells appeared reduced following hydrocortisone infusion. However, this was due to a selective extravasation of CD62L(+) T cell subsets, as hydrocortisone affected neither CD62L expression on a subpopulation level nor CD62L expression in vitro. Corresponding results in the opposite direction were observed after blocking of endogenous cortisol synthesis by metyrapone. CCR7, another lymph node homing receptor, was also unaffected by hydrocortisone in vitro. Thus, cortisol seems to redirect T cells to the bone marrow by upregulating their CXCR4 expression, whereas its inhibiting effect on T cell homing to lymph nodes is apparently regulated independently of the expression of classical homing receptors.
Collapse
Affiliation(s)
- Luciana Besedovsky
- Department of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany; Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany
| | - Barbara Linz
- Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany
| | - Stoyan Dimitrov
- Department of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany; Department of Psychiatry, University of California, San Diego, La Jolla, California
| | - Sabine Groch
- Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany
| | - Jan Born
- Department of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany; Center for Integrative Neuroscience, University of Tübingen, Tübingen, Germany; German Center for Diabetes Research, Tübingen, Germany; Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Tübingen, Germany; and
| | - Tanja Lange
- Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany; Department of Internal Medicine I, University of Lübeck, Lübeck, Germany
| |
Collapse
|
6
|
Schilling B, Sondermann W, Zhao F, Griewank KG, Livingstone E, Sucker A, Zelba H, Weide B, Trefzer U, Wilhelm T, Loquai C, Berking C, Hassel J, Kähler KC, Utikal J, Al Ghazal P, Gutzmer R, Goldinger SM, Zimmer L, Paschen A, Hillen U, Schadendorf D. Differential influence of vemurafenib and dabrafenib on patients' lymphocytes despite similar clinical efficacy in melanoma. Ann Oncol 2014; 25:747-753. [PMID: 24504444 PMCID: PMC4433519 DOI: 10.1093/annonc/mdt587] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 10/21/2013] [Accepted: 12/02/2013] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Since the majority of melanomas eventually become resistant and progress, combining selective BRAF inhibitors (BRAFi) with immunotherapies has been proposed to achieve more durable treatment responses. Here, we explored the impact of selective BRAFi on the hosts' immune system. PATIENTS AND METHODS Clinical data, whole blood counts (WBC) and serum lactate dehydrogenase (LDH) of 277 vemurafenib- and 65 dabrafenib-treated melanoma patients were evaluated. The frequency and phenotype of lymphocyte subpopulations were determined by flow cytometry while T cell cytokine secretion was measured by multiplex assays. RESULTS Progression-free survival (PFS) as well as overall survival (OS) were similar in patients treated with either BRAFi. High pretreatment LDH was associated with shorter PFS and OS in both groups. During therapy, peripheral lymphocytes decreased by 24.3% (median, P < 0.0001) in vemurafenib-treated patients but remained unchanged in dabrafenib-treated patients (+1.2%, P = 0.717). Differentiation of peripheral lymphocytes of vemurafenib-treated patients showed a significant decrease in CD4(+) T cells (P < 0.05). Within CD4(+) T cells obtained during treatment, an increase in CCR7(+)CD45RA(+) (naïve) and a decrease in CCR7(+)CD45RA(-) (central memory) populations were found (P < 0.01 for both). Furthermore, secretion of interferon-γ and interleukin-9 by CD4(+) T cells was significantly lower in samples obtained during vemurafenib treatment compared with baseline samples. CONCLUSION While both compounds have comparable clinical efficacy, vemurafenib but not dabrafenib decreases patients peripheral lymphocyte counts and alters CD4(+) T cell phenotype and function. Thus, selective BRAFi can significantly affect patients' peripheral lymphocyte populations. Fully understanding these effects could be critical for successfully implementing combinatorial therapies of BRAFi with immunomodulatory agents.
Collapse
Affiliation(s)
- B Schilling
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK).
| | - W Sondermann
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - F Zhao
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - K G Griewank
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - E Livingstone
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - A Sucker
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - H Zelba
- University Medical Center, University of Tübingen, Tübingen
| | - B Weide
- German Cancer Consortium (DKTK); University Medical Center, University of Tübingen, Tübingen
| | - U Trefzer
- German Cancer Consortium (DKTK); Department of Dermatology, Venerology and Allergy, Charité Universitätsmedizin Berlin, Humboldt University, Berlin
| | - T Wilhelm
- German Cancer Consortium (DKTK); Department of Dermatology, Venerology and Allergy, Charité Universitätsmedizin Berlin, Humboldt University, Berlin
| | - C Loquai
- German Cancer Consortium (DKTK); Department of Dermatology, University of Mainz, Mainz
| | - C Berking
- German Cancer Consortium (DKTK); Department of Dermatology and Allergology, Ludwig-Maximilian University, Munich
| | - J Hassel
- German Cancer Consortium (DKTK); Department of Dermatology, Heidelberg University Hospital, Heidelberg
| | - K C Kähler
- Department of Dermatology, Venerology and Allergology, University of Schleswig-Holstein Hospital, Campus Kiel
| | - J Utikal
- German Cancer Consortium (DKTK); Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg; Department of Dermatology, Venereology and Allergology, University Medical Centre Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim
| | - P Al Ghazal
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - R Gutzmer
- Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - S M Goldinger
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - L Zimmer
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - A Paschen
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - U Hillen
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| | - D Schadendorf
- Department of Dermatology, University Hospital, West German Cancer Center, University Duisburg-Essen, Essen; German Cancer Consortium (DKTK)
| |
Collapse
|
7
|
Nakayama S, Yokote T, Iwaki K, Hiraoka N, Hirata Y, Akioka T, Miyoshi T, Takayama A, Nishiwaki U, Masuda Y, Tsuji M, Hanafusa T. Central nervous system infiltration of a multiple cytokine-producing double-hit B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and Burkitt lymphoma with CC chemokine receptor 7 expression. Acta Oncol 2013. [PMID: 23205745 DOI: 10.3109/0284186x.2012.742961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
8
|
Zeng X, Wang T, Zhu C, Xing X, Ye Y, Lai X, Song B, Zeng Y. Topographical and biological evidence revealed FTY720-mediated anergy-polarization of mouse bone marrow-derived dendritic cells in vitro. PLoS One 2012; 7:e34830. [PMID: 22693544 PMCID: PMC3365054 DOI: 10.1371/journal.pone.0034830] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Accepted: 03/06/2012] [Indexed: 12/21/2022] Open
Abstract
Abnormal inflammations are central therapeutic targets in numerous infectious and autoimmune diseases. Dendritic cells (DCs) are involved in these inflammations, serving as both antigen presenters and proinflammatory cytokine providers. As an immuno-suppressor applied to the therapies of multiple sclerosis and allograft transplantation, fingolimod (FTY720) was shown to affect DC migration and its crosstalk with T cells. We posit FTY720 can induce an anergy-polarized phenotype switch on DCs in vitro, especially upon endotoxic activation. A lipopolysaccharide (LPS)-induced mouse bone marrow-derived dendritic cell (BMDC) activation model was employed to test FTY720-induced phenotypic changes on immature and mature DCs. Specifically, methods for morphology, nanostructure, cytokine production, phagocytosis, endocytosis and specific antigen presentation studies were used. FTY720 induced significant alterations of surface markers, as well as decline of shape indices, cell volume, surface roughness in LPS-activated mature BMDCs. These phenotypic, morphological and topographical changes were accompanied by FTY720-mediated down-regulation of proinflammatory cytokines, including IL-6, TNF-α, IL-12 and MCP-1. Together with suppressed nitric oxide (NO) production and CCR7 transcription in FTY720-treated BMDCs with or without LPS activation, an inhibitory mechanism of NO and cytokine reciprocal activation was suggested. This implication was supported by the impaired phagocytotic, endocytotic and specific antigen presentation abilities observed in the FTY720-treated BMDCs. In conclusion, we demonstrated FTY720 can induce anergy-polarization in both immature and LPS-activated mature BMDCs. A possible mechanism is FTY720-mediated reciprocal suppression on the intrinsic activation pathway and cytokine production with endpoint exhibitions on phagocytosis, endocytosis, antigen presentation as well as cellular morphology and topography.
Collapse
Affiliation(s)
- Xiangfeng Zeng
- Institute for Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
| | - Tong Wang
- Institute for Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
- Institute of Life and Health Engineering, Jinan University, Guangzhou, China
| | - Cairong Zhu
- Guangzhou Women and Children’s Medical Center, Guangzhou, Guangdong, China
| | - Xiaobo Xing
- Department of Chemistry, Jinan University, Guangzhou, China
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou, China
| | - Yanxia Ye
- Institute for Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
| | - Xinqiang Lai
- Institute for Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
| | - Bing Song
- Institute for Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
| | - Yaoying Zeng
- Institute for Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
- * E-mail:
| |
Collapse
|
9
|
Benhamron S, Reiner I, Zcharia E, Atallah M, Grau A, Vlodavsky I, Mevorach D. Dissociation between mature phenotype and impaired transmigration in dendritic cells from heparanase-deficient mice. PLoS One 2012; 7:e35602. [PMID: 22590508 PMCID: PMC3349677 DOI: 10.1371/journal.pone.0035602] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Accepted: 03/22/2012] [Indexed: 12/24/2022] Open
Abstract
To reach the lymphatics, migrating dendritic cells (DCs) need to interact with the extracellular matrix (ECM). Heparanase, a mammalian endo-β-D-glucuronidase, specifically degrades heparan sulfate proteoglycans ubiquitously associated with the cell surface and ECM. The role of heparanase in the physiology of bone marrow-derived DCs was studied in mutant heparanase knock-out (Hpse-KO) mice. Immature DCs from Hpse-KO mice exhibited a more mature phenotype; however their transmigration was significantly delayed, but not completely abolished, most probably due to the observed upregulation of MMP-14 and CCR7. Despite their mature phenotype, uptake of beads was comparable and uptake of apoptotic cells was more efficient in DCs from Hpse-KO mice. Heparanase is an important enzyme for DC transmigration. Together with CCR7 and its ligands, and probably MMP-14, heparanase controls DC trafficking.
Collapse
Affiliation(s)
- Sandrine Benhamron
- The Laboratory for Cellular and Molecular Immunology, Department of Medicine, Rheumatology Research Center, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Inna Reiner
- The Laboratory for Cellular and Molecular Immunology, Department of Medicine, Rheumatology Research Center, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Eyal Zcharia
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem, Israel
| | - Mizhir Atallah
- The Laboratory for Cellular and Molecular Immunology, Department of Medicine, Rheumatology Research Center, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Amir Grau
- The Laboratory for Cellular and Molecular Immunology, Department of Medicine, Rheumatology Research Center, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Israel Vlodavsky
- Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Ein Kerem, Jerusalem, Israel
- Cancer and Vascular Biology Research Center, Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Dror Mevorach
- The Laboratory for Cellular and Molecular Immunology, Department of Medicine, Rheumatology Research Center, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- * E-mail:
| |
Collapse
|
10
|
Sluijs KFVD, Obregon C, Geiser TK, Mühlemann K, Nicod LP. Monocyte differentiation toward regulatory dendritic cells is not affected by respiratory syncytial virus-induced inflammatory mediators. Am J Respir Cell Mol Biol 2011; 44:655-64. [PMID: 20595462 DOI: 10.1165/rcmb.2010-0136oc] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Airway epithelial cells were shown to drive the differentiation of monocytes into dendritic cells (DCs) with a suppressive phenotype. In this study, we investigated the impact of virus-induced inflammatory mediator production on the development of DCs. Monocyte differentiation into functional DCs, as reflected by the expression of CD11c, CD123, BDCA-4, and DC-SIGN and the capacity to activate T cells, was similar for respiratory syncytial virus (RSV)-infected and mock-infected BEAS-2B and A549 cells. RSV-conditioned culture media resulted in a partially mature DC phenotype, but failed to up-regulate CD80, CD83, CD86, and CCR7, and failed to release proinflammatory mediators upon Toll-like receptor (TLR) triggering. Nevertheless, these DCs were able to maintain an antiviral response by the release of Type I IFN. Collectively, these data indicate that the airway epithelium maintains an important suppressive DC phenotype under the inflammatory conditions induced by infection with RSV.
Collapse
|
11
|
Villablanca EJ, Raccosta L, Zhou D, Fontana R, Maggioni D, Negro A, Sanvito F, Ponzoni M, Valentinis B, Bregni M, Prinetti A, Steffensen KR, Sonnino S, Gustafsson JA, Doglioni C, Bordignon C, Traversari C, Russo V. Tumor-mediated liver X receptor-alpha activation inhibits CC chemokine receptor-7 expression on dendritic cells and dampens antitumor responses. Nat Med 2010; 16:98-105. [PMID: 20037595 DOI: 10.1038/nm.2074] [Citation(s) in RCA: 235] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Accepted: 11/25/2009] [Indexed: 01/07/2023]
Abstract
Sterol metabolism has recently been linked to innate and adaptive immune responses through liver X receptor (LXR) signaling. Whether products of sterol metabolism interfere with antitumor responses is currently unknown. Dendritic cells (DCs) initiate immune responses, including antitumor activity after their CC chemokine receptor-7 (CCR7)-dependent migration to lymphoid organs. Here we report that human and mouse tumors produce LXR ligands that inhibit CCR7 expression on maturing DCs and, therefore, their migration to lymphoid organs. In agreement with this observation, we detected CD83(+)CCR7(-) DCs within human tumors. Mice injected with tumors expressing the LXR ligand-inactivating enzyme sulfotransferase 2B1b (SULT2B1b) successfully controlled tumor growth by regaining DC migration to tumor-draining lymph nodes and by developing overt inflammation within tumors. The control of tumor growth was also observed in chimeric mice transplanted with bone marrow from mice lacking the gene encoding LXR-alpha (Nr1h3(-/-) mice) Thus, we show a new mechanism of tumor immunoescape involving products of cholesterol metabolism. The manipulation of this pathway could restore antitumor immunity in individuals with cancer.
Collapse
Affiliation(s)
- Eduardo J Villablanca
- Cancer Gene Therapy Unit, Program of Immunology and Bio Immuno Gene Therapy of Cancer, Division of Molecular Oncology, Scientific Institute San Raffaele, Milan, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
González HE, Leiva A, Tobar H, Böhmwald K, Tapia G, Torres J, Mosso LM, Bueno SM, Gonzalez P, Kalergis AM, Riedel CA. Altered chemokine receptor expression in papillary thyroid cancer. Thyroid 2009; 19:957-65. [PMID: 19731977 DOI: 10.1089/thy.2008.0432] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Papillary thyroid cancer (PTC), the most prevalent type of differentiated thyroid carcinoma, displays a strikingly high frequency of lymph node metastasis (LNM). Recent data suggest that chemokines can play an important role in promoting tumor progression and metastatic migration of tumor cells. Here we have evaluated whether PTC tissues express a different pattern of chemokine receptors and if the expression of these receptors correlates with LNM. METHODS We assessed by immunohistochemistry and flow cytometry the expression of the chemokine receptors CCR3, CCR7, and CXCR4 in tumor and nonmalignant thyroid tissues from patients suffering from PTC. Expression of these receptors in PTC was correlated with the clinical pathological condition of PTC. RESULTS Our data show a significant enhancement of CCR3 (2.5 times higher, p = 0.038) and CXCR4 (1.7 times higher, p = 0.02) expression in PTC tissues as determined by immunohistochemical staining, and of CCR3 (3.5 times higher, p < 0.002) in the plasma membrane as determined by flow cytometric analyses, compared to controls. In addition, while CCR3 (100%) and CXCR4 (90%) were present in both tumor and control thyroid tissues, expression of CCR7 was scarcely detected in PTC cells (5-10%) and not found in control cells. CXCR4 expression correlated with the classical variant of PTC (p < 0.035) and extranodal extension (p < 0.010) in patients with LNM. CONCLUSIONS Our data support the notion that CCR3, CCR7, and CXCR4 are increasingly expressed in tumor cells from PTC and that CXCR4 expression in PTC could be a potential marker for enhanced tumor aggressiveness.
Collapse
Affiliation(s)
- Hernán E González
- Millennium Nucleus on Immunology and Immunotherapy, Department of Molecular Genetics, Faculty of Biological Sciences, The Pontifical Catholic University of Chile, Santiago, Chile
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Huang DF, Xie MY, Yin JY, Nie SP, Tang YF, Xie XM, Zhou C. Immunomodulatory activity of the seeds of Plantago asiatica L. J Ethnopharmacol 2009; 124:493-498. [PMID: 19467312 DOI: 10.1016/j.jep.2009.05.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2008] [Revised: 04/01/2009] [Accepted: 05/15/2009] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The seeds of Plantago asiatica L. were often used as a traditional Chinese medicine for some immunologically weak patients suffering from chronic illness. These uses could be related to immunomodulatory properties of the plant. AIM OF THE STUDY In this study, effects of extract of the seeds of Plantago asiatica L. (ES-PL) were investigated on the maturation of dendritic cells (DCs), which play significant role in primary immune system. MATERIALS AND METHODS The phenotypes of DCs were analyzed by using flow cytometry while phagocytosis was assessed by the uptake of FITC-dextran. Antigen presenting ability to allogeneically naïve or syngeneically primed T lymphocytes was examined by the lymphocyte proliferation of mixed lymphocyte reaction (MLR). In addition, the level of chemokine receptor CCR7 mRNA was determined by RT-PCR. RESULTS DCs treated with ES-PL expressed higher levels of MHC class II molecules and major costimulatory molecules such as CD80 and CD86. Functional maturation of DCs treated with ES-PL was confirmed by decreased mannose receptor-mediated endocytosis and increased antigen presenting abilities to allogeneically naïve or syngeneically primed T lymphocytes. The CCR7 mRNA expression in DCs treated with ES-PL was also enhanced. CONCLUSIONS These results indicated that ES-PL could induce the maturation of murine DCs.
Collapse
MESH Headings
- Animals
- Antigen-Presenting Cells/drug effects
- Bone Marrow Cells/drug effects
- Dendritic Cells/drug effects
- Down-Regulation
- Endocytosis/drug effects
- Female
- Flow Cytometry
- Gene Expression/drug effects
- Genes, MHC Class II/genetics
- Immunologic Factors/chemistry
- Immunologic Factors/pharmacology
- Lectins, C-Type/drug effects
- Lymphocyte Culture Test, Mixed
- Mannose Receptor
- Mannose-Binding Lectins/drug effects
- Mice
- Mice, Inbred BALB C
- Ovalbumin/immunology
- Plant Extracts/pharmacology
- Plantago/chemistry
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Receptors, CCR7/biosynthesis
- Receptors, CCR7/genetics
- Receptors, Cell Surface/drug effects
- Reverse Transcriptase Polymerase Chain Reaction
- Seeds/chemistry
- Stimulation, Chemical
Collapse
Affiliation(s)
- Dan-Fei Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China
| | | | | | | | | | | | | |
Collapse
|
14
|
Salim SY, Silva MA, Keita AV, Larsson M, Andersson P, Magnusson KE, Perdue MH, Söderholm JD. CD83+CCR7- dendritic cells accumulate in the subepithelial dome and internalize translocated Escherichia coli HB101 in the Peyer's patches of ileal Crohn's disease. Am J Pathol 2009; 174:82-90. [PMID: 19095953 PMCID: PMC2631321 DOI: 10.2353/ajpath.2009.080273] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/30/2008] [Indexed: 12/19/2022]
Abstract
Recurrent Crohn's disease originates with small erosions in the follicle-associated epithelium overlying the Peyer's patches. Animal studies have illustrated mucosal immune regulation by dendritic cells located in the subepithelial dome. The aim of this study was to characterize the dendritic cells at this specific site in patients with Crohn's disease. Ileal tissues were obtained after surgery performed on Crohn's patients; ileal samples from noninflammatory bowel disease and ulcerative colitis served as standard and inflammatory controls, respectively. Flow cytometry of isolated intestinal mononuclear cells showed a larger subset of dendritic cells in Crohn's samples compared with controls. This finding was corroborated by confocal microscopy, showing enhanced infiltrates of cells positive for the dendritic cell markers, DC-SIGN(+) and CD83(+), in the subepithelial dome. Moreover, the CD83(+) cells in Crohn's tissues showed reduced expression of the lymph node migratory receptor, CCR7, possibly contributing to the high numbers of dendritic cells. After exposure to nonpathogenic Escherichia coli in Ussing chambers, dendritic cells in the subepithelial dome of Crohn's disease demonstrated increased co-localization with translocated bacteria. Immunohistochemical results revealed that DC-SIGN(+) cells in Crohn's tissues were found to express toll-like receptor 4 and produce tumor necrosis factor-alpha. In conclusion, nonmigrating dendritic cells that accumulate in the subepithelial dome and internalize nonpathogenic bacteria may be important for the onset and perpetuation of mucosal inflammation in Crohn's disease.
Collapse
Affiliation(s)
- Sa'ad Y Salim
- Divisions of Surgery, Faculty of Health Sciences, Linköping University, Linköping, Sweden
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Mytar B, Stec M, Węglarczyk K, Zembala M. Biological activity of dendritic cells generated from cord blood CD34+ hematopoietic progenitors in IL-7- and IL-13-conditioned cultures. Arch Immunol Ther Exp (Warsz) 2009; 57:67-74. [PMID: 19219529 PMCID: PMC2771131 DOI: 10.1007/s00005-009-0005-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2008] [Accepted: 12/19/2008] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Dendritic cells (DCs) are required for initiation of the immune response and may therefore be used for the production of cancer vaccines. As mature DCs (mDCs) are the most potent antigen-presenting cells, there is increasing interest in generating them ex vivo. The present study was designed to obtain mDCs from CD34+ hematopoietic progenitors by culturing them in different media. MATERIALS AND METHODS Cord blood CD34+ hematopoietic progenitors were expanded for 7 days in FST medium containing fms-related tyrosine kinase 3 ligand (Flt3-L), stem cell factor (SCF), and thrombopoietin (TPO). Then the cells were divided into three parts and cultured for 21 days in different media: FST medium or FST enriched in interleukin (IL)-3 (FST3 medium) or supplemented with IL-7 and IL-13 (FST713 medium). At the end of culture part of the cells was harvested, counted, and analyzed while the other part was matured with proinflammatory cytokines for 2 days. The cells' phenotypes, ability to induce proliferation of allogeneic lymphocytes in the mixed lymphocyte reaction (allo-MLR), chemotaxis, phagocytosis, and O2(-) production were determined. RESULTS The average fold increase of DCs at the end of culture in FST medium was 127, in FST3 1043, and in FST713 71. In comparison with the other media, FST713 medium supported the generation of mDCs that were characterized by higher expression of CD83, costimulatory molecules, and HLA-DR, enhanced ability to induce allo-MLR and migration to -macrophage inflammatory protein (MIP) 3beta poor phagocytosis, and O2(-) production. CONCLUSIONS This study indicates that FST713 medium allows the generation of limited numbers of more mature DCs, while FST3 medium leads to the production of immature DCs in high numbers.
Collapse
Affiliation(s)
- BoŻenna Mytar
- Department of Clinical Immunology, Polish-American Institute of Pediatrics, Jagiellonian University Medical College, Cracow, Poland
| | - Małgorzata Stec
- Department of Clinical Immunology, Polish-American Institute of Pediatrics, Jagiellonian University Medical College, Cracow, Poland
| | - Kazimierz Węglarczyk
- Department of Clinical Immunology, Polish-American Institute of Pediatrics, Jagiellonian University Medical College, Cracow, Poland
| | - Marek Zembala
- Department of Clinical Immunology, Polish-American Institute of Pediatrics, Jagiellonian University Medical College, Cracow, Poland
- Department of Clinical Immunology, Polish-American Institute of Pediatrics, Jagiellonian University Medical College, Wielicka 265, 30-663 Cracow, Poland
| |
Collapse
|
16
|
Ren XT, Wu WP, Xu QG, Huang DH. [Change of CCR7 and CD45RA after blocking of Kv1.3 potassium channel of CD4+ T lymphocytes in multiple sclerosis]. Zhonghua Yi Xue Za Zhi 2008; 88:1896-1899. [PMID: 19040002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To investigate the changes of CCR7 and CD45RA expression after blocking of the potassium channel Kv1.3 in myelin specific CD4 T lymphocytes and the relation thereof with multiple sclerosis(MS). METHODS Peripheral blood mononuclear cells were isolated from 15 activated MS patients, 15 INF-beta-1b treated MS patients, and 15 normal controls, CD4+ T lymphocytes were isolated using positive selection method with anti-CD4-coated magnetic beads. To establish culturing MBP special CD4+ T lymphocyte lines, the different groups of T cell were labeled with CD3, CD4, CCR7, and CD45RA fluorescence-antibody or homotype controls and analyzed by four-color flow cytometer. RESULTS The most part of phenotype in the activated MS patients was CD4+ CCR7- CD45RA- T cells and the percentage was increased after myelin antigen stimulation (P < 0.05), whereas the percentage of CCR7+ CD45RA+ T cells was decreased (P < 0.05). SHK greatly inhibited CCR7- CD45RA- in activated MS (P < 0.05). CCR7-CD45RA- and CCR7+ CD45RA- were in correlation with expanded disability status scale (EDSS) score (r = 0.73, r = 0.705, P < 0.05) in the peripheral blood of activated MS. CONCLUSION There is a strong correlation between T(EM) phenotype and severity of MS, which may suggest Tem phenotype as the marker to estimate the state of illness. Kv1.3 potassium channel may be the new target in treatment of MS.
Collapse
Affiliation(s)
- Xiao-tun Ren
- Department of Neurology, General Hospital of People's Liberation Army, Beijing, China
| | | | | | | |
Collapse
|
17
|
Abstract
IL-17-secreting T cells represent a distinct CD4(+) effector T cell lineage (Th17) that appears to be essential in the pathogenesis of numerous inflammatory and autoimmune diseases. Although extensively studied in the murine system, human Th17 cells have not been well characterized. In this study, we identify CD4(+)CD45RO(+)CCR7(-)CCR6(+) effector memory T cells as the principal IL-17-secreting T cells. Human Th17 cells have a unique cytokine profile because the majority coexpress TNF-alpha but not IL-6 and a minor subset express IL-17 with IL-22 or IL-17 and IFN-gamma. We demonstrate that the cytokines that promote the differentiation of human naive T cells into IL-17-secreting cells regulate IL-17 production by memory T cells. IL-1beta alone or in association with IL-23 and IL-6 markedly increase IL-17(+) CCR6(+) memory T cells and induce IL-17 production in CCR6(-) memory T cells. We also show that T cell activation induces Foxp3 expression in T cells and that the balance between the percentage of Foxp3(+) and IL-17(+) T cells is inversely influenced by the cytokine environment. These studies suggest that the cytokine environment may play a critical role in the expansion of memory T cells in chronic autoimmune diseases.
Collapse
Affiliation(s)
- Hong Liu
- Department of Neurology and Neurosciences, University of Medicine and Dentistry New Jersey-New Jersey Medical School, Newark, NJ 07103, USA
| | | |
Collapse
|
18
|
Ou DL, Chien HF, Chen CL, Lin TC, Lin LI. Role of Twist in head and neck carcinoma with lymph node metastasis. Anticancer Res 2008; 28:1355-1359. [PMID: 18505078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The transcription factor Twist protein has been found to be correlated with metastasis in various carcinomas, including hepatocellular, breast and prostate carcinomas. However, the role of Twist in head and neck squamous cell carcinomas (HNSCC) remains unknown. Head and neck cancer tissue microarrays (TMAs) of tumors from 50 patients with HNSCC were examined. Immunohistochemical (IHC) stain analysis showed that, out of the 50 patients, twenty (40%) showed Twist-positive staining in the tumor cells, and Twist expression was positively associated with differentiation status (p=0.027), lymph node metastasis (p=0.032) and disease progression (p=0.029). Further analysis revealed that the expression of Twist was positively correlated with CXCR4 (Spearman, r=0.408, p=0.003) and CCR7 (r=0.417, p=0.003). FindPatterns analysis suggested that the transcription factor Twist, as a basic helix-loop-helix (bHLH) protein, might regulate CXCR4 and CCR7 expression in squamous cell carcinomas, which in turn might be associated with lymph node metastasis.
Collapse
Affiliation(s)
- Da-Liang Ou
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan
| | | | | | | | | |
Collapse
|
19
|
Shen X, Berger CL, Tigelaar R, Edelson RL. Development of immunogenic tumor-loaded dendritic cells through physical perturbation and apoptotic cell loading. Immunol Invest 2008; 37:798-821. [PMID: 18991097 DOI: 10.1080/08820130802403358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
To improve understanding of the forces that drive monocytes to transition into dendritic cells (Liyanage et al., 2002), we developed an experimental system that converts monocytes to DC by passage of leukocytes through a 400 microm silica bead column. The results demonstrate that overnight culture of column-treated monocytes causes a phenotypic conversion that is characteristically displayed by immature DC. These phenotypic changes were enhanced when the DC were loaded with apoptotic cells, leading to increased expression of the DC maturation-associated markers CD83, CD80 and the chemokine receptor CCR7. The DC demonstrated potent induction of allogeneic T cell proliferation and the capacity to activate autologous CD8(+) T cells. The CD8 T cells expressed augmented levels of perforin, IFN-gamma and TNF-alpha and mediated CTCL cell apoptosis. These studies demonstrate that physical contact with silica beads combined with loading of apoptotic tumor cells induces synchronized, rapid conversion of human monocytes to DC, which can efficiently stimulate CD8(+) T cells. These results may aid in the development of more efficient DC vaccines that can be loaded with the universe of antigens available in apoptotic tumor cells in a rapid, clinically practical fashion.
Collapse
MESH Headings
- Antigen Presentation
- Antigens, CD/biosynthesis
- Antigens, CD/immunology
- Antigens, Neoplasm/immunology
- Antigens, Neoplasm/metabolism
- Apoptosis/immunology
- B7-1 Antigen/biosynthesis
- B7-1 Antigen/immunology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cancer Vaccines
- Cell Differentiation
- Cell Line, Tumor
- Cytotoxicity, Immunologic
- Dendritic Cells/immunology
- Dendritic Cells/pathology
- Humans
- Immunoglobulins/biosynthesis
- Immunoglobulins/immunology
- Lymphocyte Activation
- Lymphoma, T-Cell/immunology
- Lymphoma, T-Cell/pathology
- Mechanotransduction, Cellular
- Membrane Glycoproteins/biosynthesis
- Membrane Glycoproteins/immunology
- Monocytes/immunology
- Monocytes/pathology
- Perforin/biosynthesis
- Receptors, CCR7/biosynthesis
- Receptors, CCR7/immunology
- Silicon Dioxide
- CD83 Antigen
Collapse
Affiliation(s)
- Xiaoyan Shen
- Department of Dermatology, Shanghai Jiao Tong University, Rui Jin Hospital, Shanghai, China
| | | | | | | |
Collapse
|
20
|
Remoli ME, Gafa V, Giacomini E, Severa M, Lande R, Coccia EM. IFN-beta modulates the response to TLR stimulation in human DC: involvement of IFN regulatory factor-1 (IRF-1) in IL-27 gene expression. Eur J Immunol 2007; 37:3499-508. [PMID: 17985330 DOI: 10.1002/eji.200737566] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Type I IFN are cytokines which play a central role in host resistance to viral or microbial infections and are important components linking innate and adaptive immunity. We and others have previously demonstrated that the production of IFN-beta by DC following bacterial infections or TLR triggering influences, in an autocrine manner, their maturation. In this study, we investigated whether IFN-beta release modulates the phenotype of the immature DC and their response to a subsequent TLR stimulation. The induction of CD86, HLA-DR, CD38 and B7H1 and the absence of CCR7 and CD83 expression upon IFN-beta treatment suggest that IFN-beta-primed DC remain at the site of infection acquiring an activated phenotype. These results prompted us to investigate the response of IFN-beta-primed DC to TLR stimulation. While IFN-beta pretreatment increases slightly the expression of maturation markers in TLR2- or TLR4-stimulated DC, it is able to modulate selectively the secretion of inflammatory and immuno-regulating cytokines. Interestingly, IL-27p28 subunit was induced by IFN-beta alone or during LPS-induced maturation of DC in a type I IFN-dependent manner through IFN regulatory factor-1 (IRF-1) activation. Taken together, our results shed light on the capacity of IFN-beta to finely tune DC response to invading pathogens.
Collapse
Affiliation(s)
- Maria Elena Remoli
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | | | | | | | | | | |
Collapse
|
21
|
Haynes NM, Allen CDC, Lesley R, Ansel KM, Killeen N, Cyster JG. Role of CXCR5 and CCR7 in follicular Th cell positioning and appearance of a programmed cell death gene-1high germinal center-associated subpopulation. J Immunol 2007; 179:5099-108. [PMID: 17911595 DOI: 10.4049/jimmunol.179.8.5099] [Citation(s) in RCA: 531] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Th cell access to primary B cell follicles is dependent on CXCR5. However, whether CXCR5 induction on T cells is sufficient in determining their follicular positioning has been unclear. In this study, we find that transgenic CXCR5 overexpression is not sufficient to promote follicular entry of naive T cells unless the counterbalancing influence of CCR7 ligands is removed. In contrast, the positioning of Ag-engaged T cells at the B/T boundary could occur in the absence of CXCR5. The germinal center (GC) response was 2-fold reduced when T cells lacked CXCR5, although these T cells were able to access the GC. Finally, CXCR5(high)CCR7(low) T cells were found to have elevated IL-4 transcript and programmed cell death gene-1 (PD-1) expression, and PD-1(high) cells were reduced in the absence of T cell CXCR5 or in mice compromised in GC formation. Overall, these findings provide further understanding of how the changes in CXCR5 and CCR7 expression regulate Th cell positioning during Ab responses, and they suggest that development and/or maintenance of a PD-1(high) follicular Th cell subset is dependent on appropriate interaction with GC B cells.
Collapse
MESH Headings
- Animals
- Antigen Presentation/genetics
- Antigen Presentation/immunology
- Antigens, Differentiation/biosynthesis
- Chemotaxis, Leukocyte/genetics
- Chemotaxis, Leukocyte/immunology
- Germinal Center/cytology
- Germinal Center/immunology
- Germinal Center/metabolism
- Lymphocyte Activation/genetics
- Lymphoid Tissue/cytology
- Lymphoid Tissue/immunology
- Lymphoid Tissue/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Programmed Cell Death 1 Receptor
- Receptors, CCR7/biosynthesis
- Receptors, CCR7/physiology
- Receptors, CXCR5/biosynthesis
- Receptors, CXCR5/deficiency
- Receptors, CXCR5/genetics
- Receptors, CXCR5/physiology
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocytes, Helper-Inducer/cytology
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
Collapse
Affiliation(s)
- Nicole M Haynes
- Howard Hughes Medical Institute, University of California, San Francisco, CA 94143, USA
| | | | | | | | | | | |
Collapse
|