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Asín-Prieto E, Parra-Guillen ZP, Gómez Mantilla JD, Vandenbossche J, Stuyckens K, de Trixhe XW, Perez-Ruixo JJ, Troconiz IF. A quantitative systems pharmacology model for acute viral hepatitis B. Comput Struct Biotechnol J 2021; 19:4997-5007. [PMID: 34589180 DOI: 10.1016/j.csbj.2021.08.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 12/25/2022] Open
Abstract
Mechanistic model characterizing acute immune response and HBV system interactions. Key role of the cellular and regulatory response triggering hepatitis B chronicity. Modelling framework to easily incorporate and explore additional biological mechanisms.
Hepatitis B liver infection is caused by hepatitis B virus (HBV) and represents a major global disease problem when it becomes chronic, as is the case for 80–90% of vertical or early life infections. However, in the vast majority (>95%) of adult exposures, the infected individuals are capable of mounting an effective immune response leading to infection resolution. A good understanding of HBV dynamics and the interaction between the virus and immune system during acute infection represents an essential step to characterize and understand the key biological processes involved in disease resolution, which may help to identify potential interventions to prevent chronic hepatitis B. In this work, a quantitative systems pharmacology model for acute hepatitis B characterizing viral dynamics and the main components of the innate, adaptive, and tolerant immune response has been successfully developed. To do so, information from multiple sources and across different organization levels has been integrated in a common mechanistic framework. The final model adequately describes the chronology and plausibility of an HBV-triggered immune response, as well as clinical data from acute patients reported in the literature. Given the holistic nature of the framework, the model can be used to illustrate the relevance of the different immune pathways and biological processes to ultimate response, observing the negligible contribution of the innate response and the key contribution of the cellular response on viral clearance. More specifically, moderate reductions of the proliferation of activated cytotoxic CD8+ lymphocytes or increased immunoregulatory effects can drive the system towards chronicity.
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Key Words
- AHB, acute hepatitis B
- ALT, alanine aminotransferase
- CHB, chronic hepatitis B
- CTL*, activated CTL
- CTL, antigen-specific cytotoxic T lymphocytes
- CTLm, memory CTL
- DC*, activated dendritic cells
- DC, dendritic cells
- HB, Hepatitis B
- HBV, hepatitis B virus, HBV DNA, circulating DNA levels of HBV
- HBsAg, hepatitis B surface antigen
- Hep, hepatocytes
- Hepatitis B
- Heptot, total hepatocytes
- IFN, interferon
- Immune system dynamics
- LN, lymph node
- LPC, long-lived plasma cells
- LV, liver
- MDSC, myeloid-derived suppressor cells
- Mechanistic modeling
- NK*, activated NK
- NK, natural killer cells
- ODE, ordinary differential equations
- PB, plasmablasts
- PC, plasma cells
- PL, plasma
- QSP, quantitative systems pharmacology
- Quantitative systems pharmacology
- SPC, short-lived plasma cells
- TRAIL, tumor necrosis factor–related apoptosis-inducing ligand
- Th0, naïve T cells
- Treg, regulatory T cells
- Viral dynamics
- anti-HBc, specific antibodies against core hepatitis B antigen
- anti-HBs, specific antibodies against surface hepatitis B antigen
- dHep, debris hepatocytes
- iHep, infected hepatocytes
- pDC, plasmacytoid DC
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Draxler DF, Bain CR, Taylor R, Wallace S, Gouldthorpe O, Corcoran TB, Myles PS, Bozaoglu K, Medcalf RL. Data on the modulatory effects of a single bolus dexamethasone on the surface marker expression of various leucocyte subsets. Data Brief 2020; 32:106117. [PMID: 32904373 PMCID: PMC7452708 DOI: 10.1016/j.dib.2020.106117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/26/2020] [Accepted: 07/28/2020] [Indexed: 01/29/2023] Open
Abstract
Dexamethasone is frequently administered to surgical patients for anti-emetic prophylaxis. We have examined the immunomodulatory effects of a single bolus of dexamethasone on circulating peripheral blood mononuclear cells (PBMCs) in the same 10 healthy male volunteers, previously used in our investigation on early in vivo effects of a single anti-emetic dose of dexamethasone on innate immune cell gene expression and activation [1]. Blood samples were drawn at baseline, 2 h, 4 h and 24 h. Immune cell phenotypes were examined with flow cytometry. In this data article the expression strength of markers involved in immune activation and immunosuppression as well as maturation, migration, cell death and responsiveness to signalling on monocyte and cDC subsets, as well as NK cells, CD4+ and CD8+ T cells and regulatory T cells (Treg) are presented. These data improve our understanding of the immunomodulatory effects of the glucocorticoid dexamethasone in-vivo, which may be important for the optimisation of treatment regimens as well as the evaluation of new indications for glucocorticoid treatment.
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Affiliation(s)
- D F Draxler
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia.,Department of Cardiology, University hospital of Bern, Bern, Switzerland.,Bern Center for Precision Medicine, Bern, Switzerland
| | - C R Bain
- Department of Anaesthesiology and Perioperative Medicine, The Alfred Hospital and Monash University, Melbourne, VIC, Australia
| | - R Taylor
- Genomics and Systems Biology Laboratory, Baker IDI Heart and Diabetes Institute Victoria, Melbourne, VIC, Australia
| | - S Wallace
- Department of Anaesthesiology and Perioperative Medicine, The Alfred Hospital and Monash University, Melbourne, VIC, Australia
| | - O Gouldthorpe
- Department of Anaesthesiology and Perioperative Medicine, The Alfred Hospital and Monash University, Melbourne, VIC, Australia
| | - T B Corcoran
- Department of Anaesthesia and Pain Medicine, Royal Perth Hospital, University of Western Australia, Perth, WA, Australia and Monash University, Melbourne, VIC, Australia
| | - P S Myles
- Department of Anaesthesiology and Perioperative Medicine, The Alfred Hospital and Monash University, Melbourne, VIC, Australia
| | - K Bozaoglu
- Bruce Lefroy Centre for Genetic Health Research, Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - R L Medcalf
- Australian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia
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Gonzalez-Diaz SN, Sanchez-Borges M, Rangel-Gonzalez DM, Guzman-Avilan RI, Canseco-Villarreal JI, Arias-Cruz A. Chronic urticaria and thyroid pathology. World Allergy Organ J 2020; 13:100101. [PMID: 32180891 PMCID: PMC7063156 DOI: 10.1016/j.waojou.2020.100101] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/27/2019] [Accepted: 12/31/2019] [Indexed: 12/11/2022] Open
Abstract
Urticaria is defined as the sudden appearance of erythematous, itchy wheals of variable size, with or without angioedema (AE) (swelling of the deeper layers of the skin). Its classification depends on time course of symptoms and the presence of eliciting factors. When it lasts less than 6 weeks it is classified as acute urticaria (AU), and if the symptoms persist for more than 6 weeks, it is classified as chronic urticaria (CU). Current International Guidelines also classify CU as chronic spontaneous urticaria (CSU) and inducible urticarial, according to the absence or presence of environmental triggering factors. CSU is defined as urticaria and/or angioedema in which there is no evidence of a specific eliciting factor. CSU is associated with autoimmunity in 30-45% of the cases, sharing some immunological mechanisms with other autoimmune diseases, and is associated with autoimmune thyroid disease (ATD) in about 4.3%-57.4% patients. Several studies suggest that adequate therapy with anti-thyroid drugs or levothyroxine in early stages of ATD and CSU, may help to remit the latter; but there is still a lack of double-blind, placebo-controlled studies that support this hypothesis in patients without abnormal thyroid hormone levels. The objective of this review is to describe the pathophysiology of chronic spontaneous urticaria and its association with autoimmune thyroid disease.
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Key Words
- AAbs, autoantibodies
- AD, autoimmune diseases
- AE, angioedema
- AMA, antithyroid microsomal antibody
- ASST, autologous serum skin test
- ATAbs, anti-thyroid autoantibodies
- ATD, autoimmune thyroid disease
- Autoimmunity
- BAT, basophil activation test
- CAU, chronic autoimmune urticaria
- CSU, chronic spontaneous urticaria
- CU, chronic urticaria
- Chronic urticaria
- DAMPs, damage-associated molecular patterns
- FcεRIa, high affinity IgE receptor
- GD, Graves' disease
- HT, Hashimoto's thyroiditis/autoimmune thyroiditis
- Histamine
- ICU, inducible chronic urticaria
- IFN-γ, gamma interferon
- IL, Interleukin
- IgE, Immunoglobulin E
- IgG, Immunoglobulin G
- Levothyroxine
- NSAH, non-sedating antihistamines
- PAF, platelet activating factor
- PAMPs, pathogen-associated molecular patterns
- T4L, free thyroxine
- TG, thyroglobulin
- TGAbs, anti-thyroglobulin antibodies
- TLR, Toll-like receptors
- TNF-α, tumor necrosis factor alpha
- TPOAbs, anti-thyroid peroxidase antibodies
- TSH, thyroid stimulating hormone
- TSHR, thyroid stimulating hormone receptor
- Thyroid disease
- Treg, regulatory T cells
- UAS, urticaria activity score
- Urticaria
- VEGF, vascular endothelial growth factor
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Affiliation(s)
- Sandra Nora Gonzalez-Diaz
- Centro Regional de Alergia e Inmunología Clinica, Hospital Universitario “Dr. José Eleuterio González”, Ave. Gonzalitos y Madero, s/n, Colonia Mitras Centro, CP. 64460, Monterrey, Nuevo Leon, Mexico
| | - Mario Sanchez-Borges
- Allergy and Clinical Immunology Department, Centro Medico Docente La Trinidad, Allergy Service, Clinica El Avila, 6a. Transversal Urb. Altamira, Piso 8, Consultorio 803, Caracas, 1060, Venezuela
| | - Diana Maria Rangel-Gonzalez
- Centro Regional de Alergia e Inmunología Clinica, Hospital Universitario “Dr. José Eleuterio González”, Ave. Gonzalitos y Madero, s/n, Colonia Mitras Centro, CP. 64460, Monterrey, Nuevo Leon, Mexico
| | - Rosa Ivett Guzman-Avilan
- Centro Regional de Alergia e Inmunología Clinica, Hospital Universitario “Dr. José Eleuterio González”, Ave. Gonzalitos y Madero, s/n, Colonia Mitras Centro, CP. 64460, Monterrey, Nuevo Leon, Mexico
| | - Jose Ignacio Canseco-Villarreal
- Centro Regional de Alergia e Inmunología Clinica, Hospital Universitario “Dr. José Eleuterio González”, Ave. Gonzalitos y Madero, s/n, Colonia Mitras Centro, CP. 64460, Monterrey, Nuevo Leon, Mexico
| | - Alfredo Arias-Cruz
- Centro Regional de Alergia e Inmunología Clinica, Hospital Universitario “Dr. José Eleuterio González”, Ave. Gonzalitos y Madero, s/n, Colonia Mitras Centro, CP. 64460, Monterrey, Nuevo Leon, Mexico
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Abstract
Hepatocellular carcinoma (HCC) is swiftly increasing in prevalence globally with a high mortality rate. The progression of HCC in patients is induced with advanced fibrosis, mainly cirrhosis, and hepatitis. The absence of proper preventive or curative treatment methods encouraged extensive research against HCC to develop new therapeutic strategies. The Food and Drug Administration-approved Nexavar (sorafenib) is used in the treatment of patients with unresectable HCC. In 2017, Stivarga (regorafenib) and Opdivo (nivolumab) got approved for patients with HCC after being treated with sorafenib, and in 2018, Lenvima (lenvatinib) got approved for patients with unresectable HCC. But, owing to the rapid drug resistance development and toxicities, these treatment options are not completely satisfactory. Therefore, there is an urgent need for new systemic combination therapies that target different signaling mechanisms, thereby decreasing the prospect of cancer cells developing resistance to treatment. In this review, HCC etiology and new therapeutic strategies that include currently approved drugs and other potential candidates of HCC such as Milciclib, palbociclib, galunisertib, ipafricept, and ramucirumab are evaluated.
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Key Words
- AMP, adenosine monophosphate
- AMPK, AMP-activated protein kinase
- ATP, adenosine 5′-triphosphate
- BMF, Bcl2 modifying factor
- BMI, body mass index
- CDK, cyclin-dependent kinase
- CTGF, connective tissue growth factor
- CTL, cytotoxic T lymphocyte
- CTLA, cytotoxic T-lymphocyte-associated protein
- ECM, extracellular matrix
- EFGR, endothelial growth factor receptor
- EGFR, epidermal growth factor receptor
- EMT, Epithelial–mesenchymal transition
- ERK, extracellular signal-regulated kinase
- FDA, Food and Drug Administration
- GFG, fibroblast growth factor
- HBV, hepatitis B virus
- HBcAg, hepatitis B core antibody
- HBsAg, HBV surface antigen
- HCC, Hepatocellular carcinoma
- HCV, hepatitis B virus
- HDV, hepatitis D virus
- HIF, hypoxia-inducible factor
- HIV, human immunodeficiency virus
- IGFR, insulin-like growth factor
- JAK, janus kinase
- MAPK, mitogen-activated protein kinase
- MDSC, myeloid-derived suppressor cell
- NASH, nonalcoholic steatohepatitis
- NK, natural killer
- NKT, natural killer T cell
- ORR, objective response rate
- OS, overall survival
- PAPSS1, 3′-phosphoadenosine 5′-phosphosulfate synthase 1
- PD-L1, programmed death ligand1
- PD1, programmed cell death protein 1
- PDGFR, platelet-derived growth factor receptor
- PEDF, pigment epithelium-derived factor
- PFS, progression-free survival
- PI3K, phosphoinositide 3-kinases
- PTEN, phosphatase and tensin homolog
- PUMA, p53 upregulated modulator of apoptosis
- RFA, radiofrequency ablation
- Rb, retinoblastoma protein
- SCF, stem cell factor
- SHP1, src homology 2 domain–containing phosphatase 1
- STAT3, signal transducer and activator of transcription 3
- TACE, transarterial chemoembolization
- TGF 1, transforming growth factor-1
- TK, tyrosine kinase
- TKI, Tyrosine kinase inhibitor
- TRKA, tropomyosin receptor kinase A
- Treg, regulatory T cells
- VEGF, vascular endothelial growth factor
- VEGFR, vascular endothelial growth factor receptor
- bFGF, basic fibroblast growth factor
- combination therapy
- cyclin-dependent kinase inhibitors
- hepatocellular carcinoma
- hepatology
- tyrosine kinase inhibitors
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Affiliation(s)
- Aastha Jindal
- Research and Development Center, Baruch S. Blumberg Institute, Doylestown, PA 18902, USA
- Address for correspondence: Aastha Jindal, Research and Development Center, Baruch S. Blumberg Institute, Doylestown, PA 18902, USA.
| | - Anusha Thadi
- Research and Development Center, Baruch S. Blumberg Institute, Doylestown, PA 18902, USA
| | - Kunwar Shailubhai
- Research and Development Center, Baruch S. Blumberg Institute, Doylestown, PA 18902, USA
- Research & Development, Tiziana Lifesciences, Doylestown, PA 18902, USA
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Kiyohara H, Sujino T, Teratani T, Miyamoto K, Arai MM, Nomura E, Harada Y, Aoki R, Koda Y, Mikami Y, Mizuno S, Naganuma M, Hisamatsu T, Kanai T. Toll-Like Receptor 7 Agonist-Induced Dermatitis Causes Severe Dextran Sulfate Sodium Colitis by Altering the Gut Microbiome and Immune Cells. Cell Mol Gastroenterol Hepatol 2019; 7:135-56. [PMID: 30510995 DOI: 10.1016/j.jcmgh.2018.09.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 09/10/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Psoriasis and inflammatory bowel disease (IBD) are both chronic inflammatory diseases occurring in the skin and gut, respectively. It is well established that psoriasis and IBD have high concordance rates, and similar changes in immune cells and microbiome composition have been reported in both conditions. To study this connection, we used a combination murine model of psoriatic dermatitis and colitis in which mice were treated topically with the Toll-like receptor 7 agonist imiquimod (IMQ) and fed dextran sulfate sodium (DSS). METHODS We applied IMQ topically to B6 mice (IMQ mice) and subsequently fed them 2% DSS in their drinking water. Disease activity and immune cell phenotypes were analyzed, and the microbial composition of fecal samples was investigated using 16S ribosomal RNA sequencing. We transplanted feces from IMQ mice to germ-free IQI/Jic (IQI) mice and fed them DSS to assess the effect of the gut microbiome on disease. RESULTS We first confirmed that IMQ mice showed accelerated DSS colitis. IMQ mice had decreased numbers of IgD+ and IgM+ B cells and increased numbers of non-cytokine-producing macrophages in the gut. Moreover, the gut microbiomes of IMQ mice were perturbed, with significant reductions of Lactobacillus johnsonii and Lactobacillus reuteri populations. Germ-free mice transplanted with feces from IMQ mice, but not with feces from untreated mice, also developed exacerbated DSS colitis. CONCLUSIONS These results suggest that skin inflammation may contribute to pathogenic conditions in the gut via immunologic and microbiological changes. Our finding of a novel potential skin-gut interaction provides new insights into the coincidence of psoriasis and IBD.
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Key Words
- Abx, antibiotics
- BM, bone marrow
- BSA, bovine serum albumin
- DAI, disease activity index
- DSS, dextran sulfate sodium
- Dermatitis
- FITC, fluorescein isothiocyanate
- GF, germ-free
- Gut Microbiome
- HBSS, Hank’s balanced salt solution
- IBD, inflammatory bowel disease
- IFN, interferon
- IL, interleukin
- ILC, innate lymphoid cell
- IMQ, imiquimod
- IP, intraperitoneally
- IQI, IQI/Jic
- Inflammatory Bowel Disease
- LP, lamina propria
- NLRP3, NACHT, LRR, and PYD domains-containing protein 3
- OTU, operational taxonomic unit
- PBS, phosphate-buffered saline
- PCR, polymerase chain reaction
- PE, phycoerythrin
- PMA, phorbol 12-myristate-13-acetate
- SPF, specific pathogen-free
- TLR, Toll-like receptor
- TNF, tumor necrosis factor
- Th, T helper
- Treg, regulatory T cells
- WT, wild-type
- ZO-1, zonula occludens-1
- dLN, draining lymph node
- gnoto, gnotobiote
- pDC, plasmacytoid dendritic cell
- rRNA, ribosomal RNA
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Abstract
Thymic stromal lymphopoietin (TSLP) was identified more than 20 years ago as a secreted factor of a mouse thymic stromal cell line; later, a human orthologue was also identified. The signaling pathway triggered by TSLP has been extensively studied, and upregulation of the cytokine itself is linked to the pathogenesis of numerous Th2-related diseases, including atopic dermatitis, asthma, allergic responses, as well as certain types of cancers. On the other hand, TSLP mediates several immune homeostatic functions in both the gut and the thymus. Thus, a paradox occurs; why is TSLP homeostatic in certain tissues and a hallmark of exacerbated Th2 responses in the aforementioned pathologies? We and others have recently shown that in humans a novel isoform exists; this is a shorter isoform of TSLP whose expression is constitutive and controlled by a separate promoter. Short TSLP isoform mediates the homeostatic functions, whereas the long isoform is expressed at low/undetectable level at steady state and upregulated during inflammation in several tissues. Here we review the most recent data concerning the differential expression of the 2 isoforms and provide a potential explanation to the paradox. TSLP is regarded as a promising target for treatment of relevant pathologies, with a number of clinical trials already underway. It is important to design new strategies aimed at leaving intact the homeostatic effects of the short isoform while targeting the inflammatory effects of the long isoform.
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Key Words
- Atopic Diseases
- DC, dendritic cell
- Gut Homeostasis
- IFN, interferon
- IL, interleukin
- ILC, innate lymphoid cells
- MAPK, mitogen-activated protein kinase
- NF-κB, nuclear factor kappa B
- TLR, toll-like receptor
- TNF, tumor necrosis factor
- TSLP, thymic stromal lymphopoietin
- TSLPR, thymic stromal lymphopoietin protein receptor
- Therapeutic Targets
- Thymic Stromal Lymphopoietin
- Treg, regulatory T cells
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Eckert F, Gaipl U, Niedermann G, Hettich M, Schilbach K, Huber S, Zips D. Beyond checkpoint inhibition - Immunotherapeutical strategies in combination with radiation. Clin Transl Radiat Oncol 2017; 2:29-35. [PMID: 29657997 PMCID: PMC5893529 DOI: 10.1016/j.ctro.2016.12.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 12/20/2022] Open
Abstract
The revival of cancer immunotherapy has taken place with the clinical success of immune checkpoint inhibition. However, the spectrum of immunotherapeutic approaches is much broader encompassing T cell engaging strategies, tumour-specific vaccination, antibodies or immunocytokines. This review focuses on the immunological effects of irradiation and the evidence available on combination strategies with immunotherapy. The available data suggest great potential of combined treatments, yet also poses questions about dose, fractionation, timing and most promising multimodal strategies.
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Key Words
- Bispecific antibodies
- CAR, chimeric antigen receptor
- CAR-T-cells
- CDN, cyclic dinucleotides
- CTL, cytotoxic T lymphocyte
- CTLA-4, cytotoxic T-lymphocyte-associated protein 4
- GM-CSF, granulocyte-monocyte colony stimulating factor
- IR, irradiation
- Immunocytokines
- Immunotherapy
- PD-1, Programmed cell death protein 1 receptor
- PD-L1, PD-1 ligand
- Radiotherapy
- TCR, T cell receptor
- Treg, regulatory T cells
- Vaccination
- bsAb, bispecific antibody
- scFv, single chain variable fragment
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Affiliation(s)
- F. Eckert
- Department of Radiation Oncology, Universitaetsklinikum Tuebingen, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - U.S. Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - G. Niedermann
- Department of Radiation Oncology, Medical Center – University of Freiburg, Freiburg, Germany
| | - M. Hettich
- Department of Radiation Oncology, Medical Center – University of Freiburg, Freiburg, Germany
| | - K. Schilbach
- Department of General Pediatrics/Pediatric Oncology, Universitaetsklinikum Tuebingen, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - S.M. Huber
- Department of Radiation Oncology, Universitaetsklinikum Tuebingen, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - D. Zips
- Department of Radiation Oncology, Universitaetsklinikum Tuebingen, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
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Fernández A, Oliver L, Alvarez R, Fernández LE, Lee KP, Mesa C. Adjuvants and myeloid-derived suppressor cells: enemies or allies in therapeutic cancer vaccination. Hum Vaccin Immunother 2015; 10:3251-60. [PMID: 25483674 DOI: 10.4161/hv.29847] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Adjuvants are a critical but largely overlooked and poorly understood component included in vaccine formulations to stimulate and modulate the desired immune responses to an antigen. However, unlike in the protective infectious disease vaccines, adjuvants for cancer vaccines also need to overcome the effect of tumor-induced suppressive immune populations circulating in tumor-bearing individuals. Myeloid-derived suppressor cells (MDSC) are considered to be one of the key immunosuppressive populations that inhibit tumor-specific T cell responses in cancer patients. This review focuses on the different signals for the activation of the immune system induced by adjuvants, and the close relationship to the mechanisms of recruitment and activation of MDSC. This work explores the possibility that a cancer vaccine adjuvant may either strengthen or weaken the effect of tumor-induced MDSC, and the crucial need to address this in present and future cancer vaccines.
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Key Words
- APC, antigen-presenting cells
- ARG1, arginase 1
- CTL, cytotoxic T lymphocytes
- DC, dendritic cells
- G-MDSC, granulocytic MDSC
- GM-CSF, granulocyte macrophage colony-stimulating factor
- MDSC
- MDSC, myeloid-derived suppressor cells
- Mo-MDSC, monocytic MDSC
- NK, natural killer
- NOS2, inducible nitric oxide synthase
- TAM, tumor-associated macrophages
- TLR ligands
- TLR, Toll-like receptors
- Treg, regulatory T cells
- adjuvants
- cancer
- cytokines
- immunotherapy
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Affiliation(s)
- Audry Fernández
- a Immunobiology Division; Center of Molecular Immunology ; Havana , Cuba
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Weinhage T, Däbritz J, Brockhausen A, Wirth T, Brückner M, Belz M, Foell D, Varga G. Granulocyte Macrophage Colony-Stimulating Factor-Activated CD39 +/CD73 + Murine Monocytes Modulate Intestinal Inflammation via Induction of Regulatory T Cells. Cell Mol Gastroenterol Hepatol 2015; 1:433-449.e1. [PMID: 28210690 PMCID: PMC5301274 DOI: 10.1016/j.jcmgh.2015.04.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 04/28/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Granulocyte macrophage colony-stimulating factor (GM-CSF) treatment induces clinical response in patients with active Crohn's disease. To explore whether monocytes mediate GM-CSF effects in vivo, we used a mouse model of chronic colitis induced by dextran sulfate sodium (DSS). METHODS Murine bone marrow-derived monocytes were activated with GM-CSF in vitro, and gene expression, phenotype, and function of GM-CSF-activated monocytes (GMaM) were analyzed. Therapeutic effects of GMaM were assessed in a model of chronic colitis induced by repeated cycles of DSS. Monocytes were administered intravenously and their immunomodulatory functions were evaluated in vivo by clinical monitoring, histology, endoscopy, immunohistochemistry, and expression of inflammatory markers in the colon. The distribution of injected monocytes in the intestine was measured by in vivo imaging. RESULTS GMaM expressed significantly higher levels of anti-inflammatory molecules. Production of reactive oxygen species was also increased while phagocytosis and adherence were decreased. GMaM up-regulated CD39 and CD73, which allows the conversion of adenosine triphosphate into adenosine and coincided with the induction of Foxp3+ (forkhead-box-protein P3 positive) regulatory T cells (Treg) in cocultures of GMaM and naive T cells. In chronic DSS-induced colitis, adoptive transfer of GMaM led to significant clinical improvement, as demonstrated by reduced weight loss, inflammatory infiltration, ulceration, and colon shrinkage. As GMaM migrated faster and persisted longer in the inflamed intestine compared with control monocytes, their presence induced Treg generation in vivo. CONCLUSIONS GM-CSF leads to specific monocyte activation that modulates experimental colitis via mechanisms that include the induction of Treg. We demonstrate a possible mechanism of Treg induction through CD39 and CD73 expression on monocytes.
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Key Words
- ALDH, aldehyde dehydrogenase
- ATP, adenosine triphosphate
- Adaptive Immunity
- Arg1, arginase 1
- CD, Crohn’s disease
- CD39, E-NTPDase
- CD73, ecto-5′-nucleotidase
- CFSE, carboxyfluorescein succinimidyl ester
- DC, dendritic cells
- DSS, dextran sulfate sodium
- Dextran Sulfate Sodium
- Experimental Colitis
- FCS, fetal calf serum
- Foxp3, forkhead-box-protein P3
- GM-CSF
- GM-CSF, granulocyte macrophage colony-stimulating factor
- GMaM, granulocyte-macrophage colony-stimulating factor–activated monocytes
- IBD, inflammatory bowel disease
- IL, interleukin
- IL-1Ra, IL-1 receptor antagonist
- Immune Response
- Innate Immunity
- LPS, lipopolysaccharide
- MACS, magnetic-activated cell sorting
- MEICS, murine endoscopic index of colitis severity
- Monocyte
- NO, nitric oxide
- OD, optical density
- PBS, phosphate-buffered saline
- PCR, polymerase chain reaction
- RA, retinoic acid
- ROS, reactive oxygen species
- T Cell
- TNFα, tumor necrosis factor α
- Treg, regulatory T cells
- WT, wild type
- qRT-PCR, quantitative reverse-transcription polymerase chain reaction
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Affiliation(s)
- Toni Weinhage
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
- Correspondence Address correspondence to: Toni Weinhage, MSc, University Children’s Hospital Münster, Department of Pediatric Rheumatology and Immunology, Domagkstraße 3, D-48149 Münster, Germany. fax: +49 (0)251 8358104.
| | - Jan Däbritz
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
- The Royal Children’s Hospital Melbourne, Murdoch Children’s Research Institute, Gastrointestinal Research in Inflammation and Pathology, Parkville, Australia
- Interdisciplinary Centre of Clinical Research, University of Münster, Münster, Germany
- Department of Pediatrics, University of Melbourne, Melbourne Medical School, Parkville, Australia
| | - Anne Brockhausen
- Department of Translational Dermatoinfectiology, University of Münster, Münster, Germany
| | - Timo Wirth
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
| | - Markus Brückner
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
- Department of Medicine B, University Hospital Münster, Münster, Germany
| | - Michael Belz
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
- Department of Dermatology, University Hospital Münster, Münster, Germany
| | - Dirk Foell
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
- Interdisciplinary Centre of Clinical Research, University of Münster, Münster, Germany
| | - Georg Varga
- Department of Pediatric Rheumatology and Immunology, University Children’s Hospital Münster, Münster, Germany
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10
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Bertucci F, Finetti P, Mamessier E, Pantaleo MA, Astolfi A, Ostrowski J, Birnbaum D. PDL1 expression is an independent prognostic factor in localized GIST. Oncoimmunology 2015; 4:e1002729. [PMID: 26155391 DOI: 10.1080/2162402x.2014.1002729] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 12/22/2014] [Accepted: 12/23/2014] [Indexed: 01/18/2023] Open
Abstract
Gastrointestinal stromal tumors (GIST) are the most frequently occurring digestive sarcomas. The prognosis of localized GIST is heterogeneous, notably for patients with an Armed Forces Institute of Pathology (AFIP) intermediate or high risk of relapse. Despite imatinib effectiveness, it is crucial to develop therapies able to overcome the resistance mechanisms. The immune system represents an attractive prognostic and therapeutic target. The Programmed cell Death 1 (PD1)/programmed cell death ligand 1 (PDL1) pathway is a key inhibitor of the immune response; recently, anti-PD1 and anti-PDL1 drugs showed very promising results in patients with solid tumors. However, PDL1 expression has never been studied in GIST. Our objective was to analyze PDL1 expression in a large series of clinical samples. We analyzed mRNA expression data of 139 operated imatinib-untreated localized GIST profiled using DNA microarrays and searched for correlations with histoclinical features including postoperative metastatic relapse. PDL1 expression was heterogeneous across tumors and was higher in AFIP low-risk than in high-risk samples, and in samples without than with metastatic relapse. PDL1 expression was associated with immunity-related parameters such as T-cell-specific and CD8+ T-cell-specific gene expression signatures and probabilities of activation of interferon α (IFNα), IFNγ, and tumor necrosis factor α (TNFα) pathways, suggesting positive correlation with a cytotoxic T-cell response. In multivariate analysis, the PDL1-low group was associated with a higher metastatic risk independently of the AFIP classification and the KIT mutational status. In conclusion, PDL1 expression refines the prediction of metastatic relapse in localized GIST and might improve our ability to better tailor adjuvant imatinib. In the metastatic setting, PDL1 expression might guide the use of PDL1 inhibitors, alone or associated with tyrosine kinase inhibitors.
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Key Words
- AFIP, Armed Forces Institute of Pathology
- DNA microarray
- FDR, false discovery rate
- GEO, gene expression omnibus
- GES, gene expression signatures
- GIST
- GIST, gastrointestinal stromal tumors
- GO, gene ontology
- IHC, immunohistochemistry
- ISH, in situ hybridization
- MFS, metastasis-free survival
- MHC, major histocompatibility complex
- NCBI, National Center for Biotechnology Information
- NK cells, natural killer cells
- PCA, principal component analysis
- PD1, programmed cell death 1
- PDGFRA, platelet-derived growth factor receptor α
- PDL1
- PDL1, programmed cell death ligand 1
- REMARK, REcommendations for tumor MARKer
- RMA, robust multichip average
- ROC, receiver operating characteristic
- TILs, tumor-infiltrating lymphocytes
- Treg, regulatory T cells
- WT, wild type
- gene expression
- immune response
- prognosis
- qRT-PCR, quantitative reverse transcription-polymerase chain reaction
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Affiliation(s)
- François Bertucci
- Department of Molecular Oncology; Institut Paoli-Calmettes; Centre de Recherche en Cancérologie de Marseille ; UMR1068 Inserm; Marseille, France ; Aix-Marseille University ; Marseille, France ; French Sarcoma Group ; Lyon, France
| | - Pascal Finetti
- Department of Molecular Oncology; Institut Paoli-Calmettes; Centre de Recherche en Cancérologie de Marseille ; UMR1068 Inserm; Marseille, France
| | - Emilie Mamessier
- Department of Molecular Oncology; Institut Paoli-Calmettes; Centre de Recherche en Cancérologie de Marseille ; UMR1068 Inserm; Marseille, France
| | - Maria Abbondanza Pantaleo
- Department of Specialized, Experimental and Diagnostic Medicine; Sant'Orsola-Malpighi Hospital ; Bologna, Italy
| | - Annalisa Astolfi
- Giorgio Prodi Cancer Research Center; University of Bologna ; Bologna, Italy
| | - Jerzy Ostrowski
- Department of Gastroenterology and Hepatology; Cancer Center-Institute and Medical Center of Postgraduate Education ; Warsaw, Poland
| | - Daniel Birnbaum
- Department of Molecular Oncology; Institut Paoli-Calmettes; Centre de Recherche en Cancérologie de Marseille ; UMR1068 Inserm; Marseille, France
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11
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Du Four S, Maenhout SK, De Pierre K, Renmans D, Niclou SP, Thielemans K, Neyns B, Aerts JL. Axitinib increases the infiltration of immune cells and reduces the suppressive capacity of monocytic MDSCs in an intracranial mouse melanoma model. Oncoimmunology 2015; 4:e998107. [PMID: 26137411 DOI: 10.1080/2162402x.2014.998107] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 12/08/2014] [Accepted: 12/09/2014] [Indexed: 12/21/2022] Open
Abstract
Melanoma patients are at a high risk of developing brain metastases, which are strongly vascularized and therefore have a significant risk of spontaneous bleeding. VEGF not only plays a role in neo-angiogenesis but also in the antitumor immune response. VEGFR-targeted therapy might not only have an impact on the tumor vascularization but also on tumor-infiltrating immune cells. In this study, we investigated the effect of axitinib, a small molecule TKI of VEGFR-1, -2, and -3, on tumor growth and on the composition of tumor-infiltrating immune cells in subcutaneous and intracranial mouse melanoma models. In vivo treatment with axitinib induced a strong inhibition of tumor growth and significantly improved survival in both tumor models. Characterization of the immune cells within the spleen and tumor of tumor-bearing mice respectively showed a significant increase in the number of CD3+CD8+ T cells and CD11b+ cells of axitinib-treated mice. More specifically, we observed a significant increase of intratumoral monocytic myeloid-derived suppressor cells (moMDSCs; CD11b+Ly6ChighLy6G-). Interestingly, in vitro proliferation assays showed that moMDSCs isolated from spleen or tumor of axitinib-treated mice had a reduced suppressive capacity on a per cell basis as compared to those isolated from vehicle-treated mice. Moreover, MDSCs from axitinib-treated animals displayed the capacity to stimulate allogeneic T cells. Thus, treatment with axitinib induces differentiation of moMDSC toward an antigen-presenting phenotype. Based on these observations, we conclude that the impact of axitinib on tumor growth and survival is most likely not restricted to direct anti-angiogenic effects but also involves important effects on tumor immunity.
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Key Words
- BLI, bioluminescent imaging
- DCs, Dendritic Cells
- FDA, US Food and Drug Administration
- IL-2, interleukin-2
- MDSC
- MDSC, myeloid-derived suppressor cells
- OT-1, CD8+ T-cells with transgenic receptor specific for the H-2Kb-restricted ovalbumin (OVA) peptide SIINFEKL
- PD-1, programmed death 1
- PD-L1, programmed death 1 ligand
- PFS, progression-free survival
- TKI, Tyrosine Kinase Inhibitor
- TNFα, Tumor Necrosis Factor alfa
- Treg, regulatory T cells
- VEGF, Vascular Endothelial Growth Factor
- angiogenesis
- axitinib
- brain metastasis
- grMDSC, granulocytic MDSC, IFNγ: interferon gamma
- immune cells
- melanoma
- moMDSC, monocytic MDSC
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Affiliation(s)
- Stephanie Du Four
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology; Vrije Universiteit Brussel , Brussels, Belgium
| | - Sarah K Maenhout
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology; Vrije Universiteit Brussel , Brussels, Belgium
| | | | - Dries Renmans
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology; Vrije Universiteit Brussel , Brussels, Belgium
| | - Simone P Niclou
- NORLUX Neuro-Oncology Laboratory; Luxembourg Institute of Health (LIH) ; Luxembourg
| | - Kris Thielemans
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology; Vrije Universiteit Brussel , Brussels, Belgium
| | - Bart Neyns
- Department of Medical Oncology ; UZ Brussel, Brussels, Belgium
| | - Joeri L Aerts
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology; Vrije Universiteit Brussel , Brussels, Belgium
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12
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Yi Z, Bishop GA. Regulatory role of CD40 in obesity-induced insulin resistance. Adipocyte 2015; 4:65-9. [PMID: 26167405 DOI: 10.4161/adip.32214] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/30/2014] [Accepted: 07/30/2014] [Indexed: 12/11/2022] Open
Abstract
Excessive nutrient intake in obesity triggers the accumulation of various types of immune cells in adipose tissue, particularly visceral adipose tissue (VAT). This can result in chronic inflammation which disrupts insulin effects on adipocytes and muscle cells and culminates in development of insulin resistance. The interplay between immune cells and adipose tissue is a key event for the development of insulin resistance that precedes type 2 diabetes. CD40, a well-documented costimulatory receptor, is required for efficient systemic adaptive immune responses. However, we and other groups recently showed that CD40 unexpectedly ameliorates inflammation in VAT and accordingly attenuates obesity-induced insulin resistance. Specifically, although CD40 is typically considered to play its principal immune roles on B lymphocytes and myeloid cells, we found that CD40(+)CD8(+) T lymphocytes were major contributors to the protective effect. This unexpected inhibitory role of CD40 on CD8(+) T cell activation in VAT may reflect unique features of this microenvironment. Additional knowledge gaps include whether CD40 also plays roles in mucosal immunity that control the homeostasis of gut microbiota, and human metabolic diseases. Potential therapeutic approaches, including stimulating CD40 signaling and/or manipulating specific CD40 signaling pathways in the VAT microenvironment, may open new avenues for treatment of obesity-induced insulin resistance, and prevention of type 2 diabetes.
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Key Words
- Ab, antibody
- CD40
- CD40KO, CD40 deficiency
- DIO, diet induced obesity
- HFD, high fat diet
- HIGM, Hyper-IgM syndrome
- IL-1β, interleukin-1β
- IL-6, interleukin-6
- IR, insulin resistance
- Ig, immunoglobulin
- LFD, low fat diet
- MCP-1, Monocyte Chemoattractant Protein-1
- Mφ, macrophage
- PPAR-γ, peroxisome proliferator-activated receptor-γ
- Rag1, recombination activating gene 1
- T cell
- TNF-α, tumor necrosis factor-α
- Treg, regulatory T cells
- UPR, unfolded protein response
- VAT, visceral adipose tissue
- gut microbiota
- insulin resistance
- mucosal immunity
- obesity
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13
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Devaud C, Westwood JA, Teng MW, John LB, Yong CS, Duong CP, Smyth MJ, Darcy PK, Kershaw MH. Differential potency of regulatory T cell-mediated immunosuppression in kidney tumors compared to subcutaneous tumors. Oncoimmunology 2014; 3:e963395. [PMID: 25941590 DOI: 10.4161/21624011.2014.963395] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 09/04/2014] [Indexed: 12/25/2022] Open
Abstract
In many cancers, regulatory T cells (Treg) play a crucial role in suppressing the effector immune response thereby permitting tumor development. Indeed, in mouse models, their depletion can promote the regression of tumors of various origins, including renal cell carcinoma when located subcutaneous (SC). In the present study, we aimed to assess the importance of Treg immunosuppression in the physiologic context of metastatic renal carcinoma (Renca) disease. To that purpose we inoculated renal tumors orthotopically, intra-kidney (IK), in mice. Treg depletions were performed using anti-CD4 antibody in wild type mice or diphtheria toxin (DT) in Foxp3DTR transgenic mice. Our main observation was that Treg were not the key immunosuppressive component of the IK tumoral microenvironment, compared to the same tumors located SC. We demonstrated that the CD8+ effector immune response was still suppressed in IK tumors when compared to SC tumors, following Treg depletion. Furthermore, the level of program cell death protein (PD)-1 was increased on the surface of CD4+ T cells infiltrating IK tumors compared to SC tumors. Finally, the Treg-independent immunosuppression, occurring in IK tumors, was potent enough to inhibit regression of concomitant SC tumors, normally responsive to Treg depletion. Our findings provide further insight into the immunosuppressive nature of the immune response generated in the kidney microenvironment, suggesting that it can have additional mechanisms in addition to Treg. These observations might help to identify better targets from the kidney tumor microenvironment for future cancer therapies.
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Key Words
- CD, cluster of differentiation
- CTLA-4, cytotoxic T lymphocyte antigen 4
- DEREG, Depletion of Regulatory T cells
- DT, diphtheria toxin
- DTR, diphtheria toxin receptor
- FCS, fetal calf serum
- FR, folate receptor
- Foxp3, Forkhead box protein P3
- IFN, interferon
- IK, intra-kidney
- IL, interleukin
- IP, intra-peritoneal
- IV, intravenously
- M2, type-2 immunosuppressive macrophages
- PBS, phosphate-buffered saline
- PD-1, program cell death protein 1
- PD-L1, PD ligand 1
- Renca Ch+ L+, Renca Cherry Luciferase
- SC, subcutaneous
- T regulatory cells
- TCR, T cell receptor
- Th, T helper cells
- Treg, regulatory T cells
- depletion
- immunosuppression
- kidney tumors
- mAb, monoclonal antibody
- tumor microenvironment
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Affiliation(s)
- Christel Devaud
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia
| | - Jennifer A Westwood
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia
| | - Michele Wl Teng
- Cancer Immune Regulation and Immunotherapy Laboratory; QIMR Berghofer Medical Research Institute ; Brisbane, Queensland, Australia
| | - Liza B John
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia
| | - Carmen Sm Yong
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia
| | - Connie Pm Duong
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia
| | - Mark J Smyth
- Immunology in Cancer and Infection Laboratory; QIMR Berghofer Medical Research Institute ; Brisbane, Queensland, Australia
| | - Phillip K Darcy
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia ; Department of Immunology; Monash University ; Prahran, Victoria, Australia
| | - Michael H Kershaw
- Cancer Immunology Research Program; Sir Peter MacCallum Department of Oncology; University of Melbourne ; Parkville, Victoria, Australia ; Department of Immunology; Monash University ; Prahran, Victoria, Australia
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14
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Maenhout SK, Thielemans K, Aerts JL. Location, location, location: functional and phenotypic heterogeneity between tumor-infiltrating and non-infiltrating myeloid-derived suppressor cells. Oncoimmunology 2014; 3:e956579. [PMID: 25941577 DOI: 10.4161/21624011.2014.956579] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 08/16/2014] [Indexed: 12/26/2022] Open
Abstract
An increasing number of studies is focusing on the role of myeloid-derived suppressor cells (MDSCs) in the suppression of antitumor immune responses. Although the main site of action for MDSCs is most likely the tumor microenvironment, the study of these cells has been largely restricted to MDSCs derived from peripheral lymphoid organs. Only in a minority of studies MDSCs isolated from the tumor microenvironment have been characterized. This review will give an overview of the data available on the phenotypical and functional differences between tumor-derived MDSCs and MDSCs isolated from the spleen of tumor-bearing mice or from the peripheral blood of cancer patients.
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Key Words
- ATRA, all-trans retinoic acid
- Bv8, Bombina variagata peptide 8
- CTLA-4, cytotoxic T-lymphocyte antigen-4
- GM-CSF, granulocyte-macrophage colony-stimulating factor
- IFN-γ, interferon gamma
- IL, interleukin
- IL-4Rα, interleukin-4 receptor alpha
- LPS, lipopolysaccharide
- M-CSF, macrophage-colony stimulating factor
- MAPK, mitogen-activated protein kinases
- MDSCs, myeloid-derived suppressor cells
- NS cells, natural suppressor cells
- PD-L1, programmed death-ligand 1
- PHA, phytohemagglutinin
- ROS, reactive oxygen species
- TAMs, tumor-associated macrophages
- Treg, regulatory T cells
- VEGF, vascular endothelial growth factor.
- iNOS, inducible nitric oxide synthase
- immunosuppression
- myeloid-derived suppressor cells
- siRNA, small interfering ribonucleic acid
- tumor immunology
- tumor microenvironment
- tumor models
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Affiliation(s)
- Sarah K Maenhout
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology ; Vrije Universiteit Brussel ; Brussels, Belgium
| | - Kris Thielemans
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology ; Vrije Universiteit Brussel ; Brussels, Belgium
| | - Joeri L Aerts
- Laboratory of Molecular and Cellular Therapy; Department of Immunology-Physiology ; Vrije Universiteit Brussel ; Brussels, Belgium
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15
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Schmidt N, Flecken T, Thimme R. Tumor-associated antigen specific CD8 + T cells in hepatocellular carcinoma - a promising target for immunotherapy. Oncoimmunology 2014; 3:e954919. [PMID: 25941604 DOI: 10.4161/21624011.2014.954919] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 07/15/2014] [Indexed: 02/08/2023] Open
Abstract
Immunotherapy is a promising treatment option for patients with hepatocellular carcinoma (HCC). Indeed, CD8+ T-cell responses against various tumor antigens occur in these patients. However, these antitumoral T cells show a severely impaired effector function. Several immunosuppressive mechanisms contribute to this T-cell failure, including regulatory T cells and inhibitory receptors.
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Key Words
- AFP, α-fetoprotein
- CD8+ T cells
- HCC, hepatocellular carcinoma
- HLA, human leukocyte antigen
- IFNγ, interferon-γ
- IL, interleukin
- MAGE-A1, melanoma-associated gene-A1
- NY-ESO-1, New York-esophageal squamous cell carcinoma-1
- PD-1
- PD-1, programmed death-1
- PD-L1, PD-ligand-1
- T-cell failure
- TAA, tumor-associated antigen
- Treg, regulatory T cells
- hepatocellular carcinoma
- immunotherapy
- melanoma
- regulatory T cells
- tumor-associated antigens
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Affiliation(s)
- Nathalie Schmidt
- Department of Medicine II; University Hospital Freiburg ; Freiburg, Germany
| | - Tobias Flecken
- Department of Medicine II; University Hospital Freiburg ; Freiburg, Germany ; Spemann Graduate school of Biology and Medicine (SGBM); Albert-Ludwigs University ; Freiburg, Germany ; Faculty of Biology; Albert-Ludwigs University ; Freiburg, Germany
| | - Robert Thimme
- Department of Medicine II; University Hospital Freiburg ; Freiburg, Germany
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