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Seledtsov VI, Darinskas A, Von Delwig A, Seledtsova GV. Inflammation Control and Immunotherapeutic Strategies in Comprehensive Cancer Treatment. Metabolites 2023; 13:metabo13010123. [PMID: 36677048 PMCID: PMC9865335 DOI: 10.3390/metabo13010123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023] Open
Abstract
Tumor growth and expansion are determined by the immunological tumor microenvironment (TME). Typically, early tumorigenic stages are characterized by the immune system not responding or weakly responding to the tumor. However, subsequent tumorigenic stages witness the tumor promoting its growth and metastasis by stimulating tumor-protective (pro-tumor) inflammation to suppress anti-tumor immune responses. Here, we propose the pivotal role of inflammation control in a successful anti-cancer immunotherapy strategy, implying that available and novel immunotherapeutic modalities such as inflammation modulation, antibody (Ab)-based immunostimulation, drug-mediated immunomodulation, cancer vaccination as well as adoptive cell immunotherapy and donor leucocyte transfusion could be applied in cancer patients in a synergistic manner to amplify each other's clinical effects and achieve robust anti-tumor immune reactivity. In addition, the anti-tumor effects of immunotherapy could be enhanced by thermal and/or oxygen therapy. Herein, combined immune-based therapy could prove to be beneficial for patients with advanced cancers, as aiming to provide long-term tumor cell/mass dormancy by restraining compensatory proliferation of surviving cancer cells observed after traditional anti-cancer interventions such as surgery, radiotherapy, and metronomic (low-dose) chemotherapy. We propose the Inflammatory Prognostic Score based on the blood levels of C-reactive protein and lactate dehydrogenase as well as the neutrophil-to-lymphocyte ratio to effectively monitor the effectiveness of comprehensive anti-cancer treatment.
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Affiliation(s)
- Victor Ivanovich Seledtsov
- Innovita Research Company, 06116 Vilnius, Lithuania
- Russian Scientific Center of Surgery Named after Academician B.V. Petrovsky, 119991 Moscow, Russia
- Correspondence: ; Tel.: +7-915-2636027
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Chen C, Lin Z, Liu W, Hu Q, Wang J, Zhuang X, Guan S, Wu X, Hu T, Quan S, Jin X, Shen J. Emodin accelerates diabetic wound healing by promoting anti-inflammatory macrophage polarization. Eur J Pharmacol 2022; 936:175329. [DOI: 10.1016/j.ejphar.2022.175329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022]
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Seledtsov VI, von Delwig AA. Oxygen therapy in traditional and immunotherapeutic treatment protocols of cancer patients: current reality and future prospects. Expert Rev Anticancer Ther 2022; 22:575-581. [PMID: 35468308 DOI: 10.1080/14737140.2022.2070153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The metabolic environment in ischemic and hypoxic tumors is known to contribute to cancer progression. Importantly, peculiar metabolic changes occurring in malignant cells (the increased glycolysis and the hampered Krebs cycle) may contribute to decreased antioxidant-dependent defense in ischemic and hypoxic tumors. AREAS COVERED In the clinic, oxygen saturation of tumors is usually achieved by the application of water-soluble ozone and hyperbaric oxygen therapy. Tumor oxygenation has been shown to inhibit tumor growth and potentiate anti-tumor effects of chemoradiotherapy in animal experiments and the clinical setting. Tumor oxygenation could enhance anti-tumor effects achieved by tumor blood vessel occlusion or angiostatic therapy. EXPERT OPINION Owing to a profound influence of ROS on both the innate and adaptive immunity, oxygen therapy, when combined simultaneously or sequentially with immunotherapeutic interventions (such as immune checkpoint inhibition, drug-induced immunostimulation, adoptive cell therapy, hyperthermia, etc.), could be considered as a novel highly-effective clinical biological approach to cancer treatment.
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Affiliation(s)
- Victor Ivanovich Seledtsov
- Department of Immunology, Innovita Research Company, Vilnius, Lithuania.,Center for Immunotherapy, Central Clinical Hospital of the Russian Academy of Sciences, Moscow, Russia
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Seledtsov VI, von Delwig A. Clinically feasible and prospective immunotherapeutic interventions in multidirectional comprehensive treatment of cancer. Expert Opin Biol Ther 2020; 21:323-342. [PMID: 32981358 DOI: 10.1080/14712598.2021.1828338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION The immune system is able to exert both tumor-destructive and tumor-protective functions. Immunotherapeutic technologies aim to enhance immune-based anti-tumor activity and (or) weaken tumor-protective immunity. AREAS COVERED Cancer vaccination, antibody (Ab)-mediated cytotoxicity, Ab-based checkpoint molecule inhibition, Ab-based immunostimulation, cytokine therapy, oncoviral therapy, drug-mediated immunostimulation, exovesicular therapy, anti-inflammatory therapy, neurohormonal immunorehabilitation, metabolic therapy, as well as adoptive cell immunotherapy, could be coherently used to synergize and amplify each other in achieving robust anti-cancer responses in cancer patients. Tumor-specific immunotherapy applied at early stages is capable of eliminating remaining tumor cells after surgery, thus preventing the development of minimal residual disease. Patients with advanced disease stages could benefit from combined immunotherapy, which would be aimed at providing tumor cell/mass dormancy. Traditional therapeutic anti-cancer interventions (chemoradiotherapy, hyperthermia, anti-hormonal therapy) could significantly enhance tumor sensitivity to anti-cancer immunotherapy. It is important that lower-dose (metronomic) chemotherapy regimens, which are well-tolerated by normal cells, could advance immune-mediated control over tumor growth. EXPERT OPINION We envisage that combined immunotherapy regimens in the context of traditional treatment could become the mainstream modality for treating cancers in all phases of the tumorigenesis. The effectiveness of the anti-cancer treatment could be monitored by the following blood parameters: C-reactive protein, lactate dehydrogenase, and neutrophil-to-lymphocyte ratio.
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Affiliation(s)
- Victor I Seledtsov
- Center for Integral Immunotherapy, Central Clinical Hospital of the Russian Academy of Sciences, Moscow, Russia.,Department of Immunology, Innovita Research Company, Vilnius, Lithuania
| | - Alexei von Delwig
- Department of Immunology, Innovita Research Company, Vilnius, Lithuania
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Seledtsov VI, Malashchenko VV, Meniailo ME, Atochin DN, Seledtsova GV, Schepetkin IA. Inhibitory effect of IQ-1S, a selective c-Jun N-terminal kinase (JNK) inhibitor, on phenotypical and cytokine-producing characteristics in human macrophages and T-cells. Eur J Pharmacol 2020; 878:173116. [PMID: 32315671 DOI: 10.1016/j.ejphar.2020.173116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 04/05/2020] [Accepted: 04/14/2020] [Indexed: 12/19/2022]
Abstract
c-Jun N-terminal kinase (JNK) is a critical mitogen activated protein kinase (MAPK) implicated in inflammatory processes, with IQ-1S (11H-indeno[1,2-b]quinoxalin-11-one oxime sodium salt) being a high-affinity JNK inhibitor with pronounced anti-inflammatory properties. Here, we studied direct effects of IQ-1S on phenotypical and cytokine-producing characteristics of activated human monocytes/macrophages and T cells in vitro. Purified monocyte/macrophage cells were activated by bacterial lipopolysaccharide (LPS, 1 μg/ml) for 24 h, while T cells were activated by particles conjugated with antibodies (Abs) against human CD2, CD3, and CD28 for 48 h. Treatment with IQ-1S (0.5-25 μМ) in the presence of LPS reduced percentages of CD197 (CCR7)-positive cells in macrophage cultures, without affecting CD16+ (FcγRIII, low-affinity Fc-receptor), CD119+ (interferon-γ receptor 1), and CD124+ (IL-4 receptor α-subunit) cells. In addition, IQ-1S reduced production of tumour necrosis factor-α (TNF-α), interleukin-1β (IL-1β), IL-6, and IL-10 in macrophage cultures. In activated T cell cultures, IQ-1S decreased CD25+ cell numbers in both CD4-positive and CD4-negative T cell compartments. Central memory СD45RA-/СD197+ and effector memory СD45RA-/СD197- T cells were more sensitive to IQ-1S-mediated suppression, as compared to naïve СD45RA+/СD197+ and terminally-differentiated effector СD45RA+/СD197- T cells. IQ-1S also suppressed T-cell cytokine production (IL-2, interferon-ɣ, IL-4, and IL-10). Collectively, the results suggest that both human macrophage and T cells could be immediate cell targets for IQ-1S-based anti-inflammatory immunotherapy. IQ-1S-mediated suppressive effects were unlikely to be associated with macrophage/T helper polariation.
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Affiliation(s)
- Victor I Seledtsov
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, 236016, Russia; Innovita Research Company, Vilnius, LT-06118, Lithuania.
| | - Vladimir V Malashchenko
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, 236016, Russia
| | - Maksim E Meniailo
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, 236016, Russia
| | - Dmitriy N Atochin
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia; Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, 02129, USA
| | - Galina V Seledtsova
- Laboratory for Cellular Technologies, Scientific Research Institute for Fundamental and Clinical Immunology, Novosibirsk, 630099, Russia
| | - Igor A Schepetkin
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia; Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
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Seledtsov VI, von Delwig AA. Immune memory limits human longevity: the role of memory СD4+ T cells in age-related immune abnormalities. Expert Rev Vaccines 2020; 19:209-215. [DOI: 10.1080/14760584.2020.1745638] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Victor Ivanovich Seledtsov
- Department of Immunology, Innovita Research Company, Vilnius, Lithuania
- Department of Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
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Seledtsov VI, Malashchenko VV, Meniailo ME, Gazatova ND, Seledtsova GV. Granulocyte colony-stimulating factor downregulates interferon-gamma receptor expression and stimulates interleukin-6 production in activated human macrophages. Growth Factors 2019; 37:164-169. [PMID: 31530205 DOI: 10.1080/08977194.2019.1662418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 08/14/2019] [Indexed: 10/26/2022]
Abstract
We studied direct effects of human granulocyte colony-stimulating factor (G-CSF) on phenotypical properties of human macrophage cells in vitro. CD14+ monocyte/macrophages (Mc/Mphs) were isolated from blood of healthy donors by positive magnetic separation. G-CSF (0.01-1.0 ng/mL), when added to Mc/Mphs along with lipopolysaccharide (LPS, 1.0 μg/mL), was able to noticeably reduce proportions of CD119 (interferon-γ receptor 1)-positive cells, with no stable effects on CD16 (FcγRIII)+ and СD124 (IL-4 receptor subunit alpha)-positive cells. In addition, G-CSF markedly upregulated IL-6 production by LPS-activated Mph cells, without significantly affecting IL-1β, IL-10 and tumor necrosis factor-α (TNF-α) secretion. Our data suggests that G-CSF could restrain Mph polarization to pro-inflammatory (M1) phenotype, thus potentially supporting pro-regenerative Mph activity with implications for immunotherapeutic interventions.
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Affiliation(s)
- V I Seledtsov
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - V V Malashchenko
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - M E Meniailo
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - N D Gazatova
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - G V Seledtsova
- Laboratory for Cellular Technologies, Institute for Fundamental and Clinical Immunology, Novosibirsk, Russia
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Seledtsov VI, Malashchenko VV, Gazatova ND, Meniailo ME, Morozova EM, Seledtsova GV. Directs effects of granulocyte-macrophage colony stimulating factor (GM-CSF) on adaptive immunogenesis. Hum Vaccin Immunother 2019; 15:2903-2909. [PMID: 31063025 DOI: 10.1080/21645515.2019.1614396] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Background: We studied direct effects of human granulocyte-macrophage colony stimulating factor (GM-CSF) on phenotypical characteristics and cytokine-production of non-activated and activated human monocytes/macrophages (Mc/Mphs) and T cells.Methods: Purified Mc/Mphs were activated by bacterial lipopolysaccharide (LPS, 1 μg/ml) for 24 h, while T cells were activated by particles conjugated and antibodies (Abs) against human CD2, CD3, and CD28 for 48 h.Results: GM-CSF treatment (0.01-10 ng/ml) was shown to reduce percentages of CD197 (CCR7)-positive cells in non-activated Mph cultures, without affecting significantly CD14+ (LPS co-receptor), CD16+ (FcγRIII, low-affinity Fc-receptor), CD119+ (interferon-gamma receptor 1), and CD124+ (IL4 receptor α-subunit) cells. In addition, GM-CSF reduced relative numbers of CD197+ cells, as well as CD14+, CD16+, and CD119+ cells in activated Mph cultures without affecting CD124+ cell distribution. GM-CSF at the highest dose of 10 ng/ml enhanced TNF-α and IL-6 (but not IL-1β and IL-10) production in activated Mc/Mphs. In activated T cell cultures, GM-CSF at 0.1-1.0 ng/ml augmented CD38+ cell numbers in naïve СD45RA+/СD197+ and central memory СD45RA-/СD197+ cell subsets, with no effect on effector СD45RA-/СD197- and terminally differentiated effector СD45RA+/СD197- cells. GM-CSF at a low dose (0.01 ng/ml) down-regulated INF-γ production, while at a high dosage (10.0 ng/ml) up-regulated IL-2 and IL-4 production.Conclusion: In general, the results suggest that GM-CSF is able to facilitate the implication of both Mph and T cells in the adaptive immunogenesis.
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Affiliation(s)
| | - Vladimir V Malashchenko
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Natalja D Gazatova
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Maksim E Meniailo
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Ekaterina M Morozova
- Center for Medical Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Galina V Seledtsova
- Laboratory for Cellular Biotechnologies, Scientific Research Institute for Fundamental and Clinical Immunology, Novosibirsk, Russia
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De Matteis S, Molinari C, Abbati G, Rossi T, Napolitano R, Ghetti M, Di Rorà AGL, Musuraca G, Lucchesi A, Rigolin GM, Cuneo A, Calistri D, Fattori PP, Bonafè M, Martinelli G. Immunosuppressive Treg cells acquire the phenotype of effector-T cells in chronic lymphocytic leukemia patients. J Transl Med 2018; 16:172. [PMID: 29925389 PMCID: PMC6011245 DOI: 10.1186/s12967-018-1545-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/12/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND In chronic lymphocytic leukemia (CLL) disease onset and progression are influenced by the behavior of specific CD4+ T cell subsets, such as T regulatory cells (Tregs). Here, we focused on the phenotypic and functional characterization of Tregs in CLL patients to improve our understanding of the putative mechanism by which these cells combine immunosuppressive and effector-like properties. METHODS Peripheral blood mononuclear cells were isolated from newly diagnosed CLL patients (n = 25) and healthy volunteers (n = 25). The phenotypic and functional characterization of Tregs and their subsets was assessed by flow cytometry. In vitro analysis of TH1, TH2, TH17 and Tregs cytokines was evaluated by IFN-γ, IL-4, IL-17A and IL-10 secretion assays. The transcriptional profiling of 84 genes panel was evaluated by RT2 Profiler PCR Array. Statistical analysis was carried out using exact non parametric Mann-Whitney U test. RESULTS In all CLL samples, we found a significant increase in the frequency of IL-10-secreting Tregs and Tregs subsets, a significant rise of TH2 IL-4+ and TH17 IL-17A+ cells, and a higher percentage of IFN-γ/IL-10 and IL-4/IL-10 double-releasing CD4+ T cells. In addition, we also observed the up-regulation of innate immunity genes and the down-regulation of adaptive immunity ones. CONCLUSIONS Our data show that Tregs switch towards an effector-like phenotype in CLL patients. This multifaceted behavior is accompanied by an altered cytokine profiling and transcriptional program of immune genes, leading to a dysfunction in immune response in the peripheral blood environment of CLL patients.
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MESH Headings
- Adaptive Immunity
- Aged
- Aged, 80 and over
- Candida albicans/physiology
- Cytokines/metabolism
- Female
- Gene Expression Profiling
- Gene Expression Regulation, Leukemic
- Humans
- Immunity, Innate
- Immunosuppressive Agents/immunology
- Interferon-gamma/metabolism
- Interleukin-23/blood
- Leukemia, Lymphocytic, Chronic, B-Cell/blood
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Lymphocyte Subsets/immunology
- Male
- Middle Aged
- Phenotype
- T-Lymphocytes, Regulatory/immunology
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Affiliation(s)
- Serena De Matteis
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Chiara Molinari
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Giulia Abbati
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Tania Rossi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Roberta Napolitano
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Martina Ghetti
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Andrea Ghelli Luserna Di Rorà
- Institute of Hematology “L. e A. Seragnoli”, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Gerardo Musuraca
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Alessandro Lucchesi
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Gian Matteo Rigolin
- Department of Medical Sciences, University of Ferrara-Arcispedale Sant’Anna, Ferrara, Italy
| | - Antonio Cuneo
- Department of Medical Sciences, University of Ferrara-Arcispedale Sant’Anna, Ferrara, Italy
| | - Daniele Calistri
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
| | - Pier Paolo Fattori
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Massimiliano Bonafè
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, via Maroncelli 40, 47014 Meldola, Italy
- Department of Experimental, Diagnostic & Specialty Medicine, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Giovanni Martinelli
- Scientific Directorate, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
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Meniailo ME, Malashchenko VV, Shmarov VA, Gazatova ND, Melashchenko OB, Goncharov AG, Seledtsova GV, Seledtsov VI. Interleukin-8 favors pro-inflammatory activity of human monocytes/macrophages. Int Immunopharmacol 2018; 56:217-221. [DOI: 10.1016/j.intimp.2018.01.036] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/21/2018] [Accepted: 01/22/2018] [Indexed: 01/28/2023]
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Direct anti-inflammatory effects of granulocyte colony-stimulating factor (G-CSF) on activation and functional properties of human T cell subpopulations in vitro. Cell Immunol 2018; 325:23-32. [PMID: 29357983 DOI: 10.1016/j.cellimm.2018.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 12/18/2017] [Accepted: 01/13/2018] [Indexed: 11/21/2022]
Abstract
We investigated the direct effects of human granulocyte colony-stimulating factor (G-CSF) on functionality of human T-cell subsets. CD3+ T-lymphocytes were isolated from blood of healthy donors by positive magnetic separation. T cell activation with particles conjugated with antibodies (Abs) to human CD3, CD28 and CD2 molecules increased the proportion of cells expressing G-CSF receptor (G-CSFR, CD114) in all T cell subpopulations studied (CD45RA+/CD197+ naive T cells, CD45RA-/CD197+ central memory T cells, CD45RA-/CD197- effector memory T cells and CD45RA+/CD197- terminally differentiated effector T cells). Upon T-cell activation in vitro, G-CSF (10.0 ng/ml) significantly and specifically enhanced the proportion of CD114+ T cells in central memory CD4+ T cell compartment. A dilution series of G-CSF (range, 0.1-10.0 ng/ml) was tested, with no effect on the expression of CD25 (interleukin-2 receptor α-chain) on activated T cells. Meanwhile, G-CSF treatment enhanced the proportion of CD38+ T cells in CD4+ naïve T cell, effector memory T cell and terminally differentiated effector T cell subsets, as well as in CD4- central memory T cells and terminally differentiated effector T cells. G-CSF did not affect IL-2 production by T cells; relatively low concentrations of G-CSF down-regulated INF-γ production, while high concentrations of this cytokine up-regulated IL-4 production in activated T cells. The data obtained suggests that G-CSF could play a significant role both in preventing the development of excessive and potentially damaging inflammatory reactivity, and in constraining the expansion of potentially cytodestructive T cells.
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Seledtsova GV, Ivanova IP, Shishkov AA, Seledtsov VI. Immune responses to polyclonal T-cell vaccination in patients with progressive multiple sclerosis. J Immunotoxicol 2016; 13:879-884. [PMID: 27602793 DOI: 10.1080/1547691x.2016.1223767] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The overall objective of disease management in autoimmune diseases is to suppress chronic inflammation and prevent organ damage. Therapies often revolve around five drug classes: non-steroidal anti-inflammatory drugs (NSAIDS), anti-malarials, steroids, immunosuppressants, and bio-therapies. However, none of these is a 'cure' and each displays a potential for adverse events. In particular, while all of them suppress harmful autoimmune responses, they also impact on useful protective immune responses. T-Cell receptor (TCR) immunogenicity provides a rationale for T-cell vaccinations to induce anti-idiotypic immune responses with the purpose of down-regulating functionality of idiotype-bearing self-reactive T-cells. To explore this, in this study, 39 patients with progressive (chronic) multiple sclerosis (MS) were multiply immunized with autological polyclonal T-cell vaccines (TCVs). None of the TCV-treated patients experienced any significant side-effects during the entire follow-up period (2 years). T-Cell vaccination had no significant effects on T-cell sub-population contents in the blood of MS patients after 2 years of immunotherapy initiation. However, a substantial reduction in the frequency of CD4+ and CD8+ memory T-cells able to produce interferon (IFN)-γ following activation were noted in the blood of TCV-treated patients. Moreover, significant and sustained reduction in plasma IFNγ levels and concomitant increases in interleukin (IL)-4 levels were documented in these samples. The TCV-treated subjects, however, exhibited no significant changes in plasma IL-17 and IL-18. More importantly was a significant decline in proliferative T-cell responses to myelin antigens in the TCV-treated patients, indicating attenuation of myelin-specific T-cell activity. Collectively, the results suggest that polyclonal T-cell vaccination is safe to use, able to induce measurable, long-lasting, anti-inflammatory immune effects in patients with advanced MS.
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Affiliation(s)
- Galina V Seledtsova
- a State Research Institute for Fundamental and Clinical Immunology , Novosibirsk , Russia
| | - Irina P Ivanova
- a State Research Institute for Fundamental and Clinical Immunology , Novosibirsk , Russia
| | - Alexey A Shishkov
- a State Research Institute for Fundamental and Clinical Immunology , Novosibirsk , Russia
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Erythropoietin exerts direct immunomodulatory effects on the cytokine production by activated human T-lymphocytes. Int Immunopharmacol 2016; 36:277-281. [DOI: 10.1016/j.intimp.2016.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/21/2016] [Accepted: 05/08/2016] [Indexed: 01/29/2023]
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The local environment orchestrates mucosal decidual macrophage differentiation and substantially inhibits HIV-1 replication. Mucosal Immunol 2016; 9:634-46. [PMID: 26349662 DOI: 10.1038/mi.2015.87] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 07/27/2015] [Indexed: 02/04/2023]
Abstract
Macrophages from the decidua basalis (dM), the main uterine mucosa during pregnancy, are weakly permissive to HIV-1 infection. Here, we investigated the mechanisms underlying this natural control. We show, by using freshly purified decidual macrophages and ex vivo human decidual explants, that the local decidual environment influences dM differentiation and naturally protects these cells from HIV-1 infection. Interferon (IFN)-γ, present in the decidual tissue, contributes to maintenance of the dM phenotype and restricts HIV-1 infection by mechanisms involving the cyclin-dependent kinase inhibitor p21Cip1/Waf1. We also found that activation of Toll-like receptors 7 and 8 expressed by dM reinforces the low permissivity of dM to HIV-1 by restricting viral replication and inducing secretion of cytokines in the decidual environment, including IFN-γ, that shape dM plasticity. A major challenge for HIV-1 eradication is to control infection of tissue-resident macrophages in the female reproductive tract. Our findings provide clues to the development of novel strategies to prevent HIV-1 macrophage infection.
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Wang D, Gilbert JR, Shaw MA, Shakir S, Losee JE, Billiar TR, Cooper GM. Toll-like receptor 4 mediates the regenerative effects of bone grafts for calvarial bone repair. Tissue Eng Part A 2016; 21:1299-308. [PMID: 25603990 DOI: 10.1089/ten.tea.2014.0215] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Craniofacial trauma is difficult to repair and presents a significant burden to the healthcare system. The inflammatory response following bone trauma is critical to initiate healing, serving to recruit inflammatory and progenitor cells and to promote angiogenesis. A role for inflammation in graft-induced bone regeneration has been suggested, but is still not well understood. The current study assessed the impact of Toll-like receptor (TLR4) signaling on calvarial repair in the presence of morselized bone components. Calvarial defects in wild-type and global TLR4(-/-) knockout mouse strains were treated with fractionated bone components in the presence or absence of a TLR4 neutralizing peptide. Defect healing was subsequently evaluated over 28 days by microcomputed tomography and histology. The matrix-enriched fraction of morselized bone stimulated calvarial bone repair comparably with intact bone graft, although the capacity for grafts to induce calvarial bone repair was significantly diminished by inhibition or genetic ablation of TLR4. Overall, our findings suggest that the matrix component of bone graft stimulates calvarial bone repair in a TLR4-dependent manner. These results support the need to better understand the role of inflammation in the design and implementation of strategies to improve bone healing.
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Affiliation(s)
- Dan Wang
- 1 Department of Stomatology, Tenth People's Hospital of Tongji University , Shanghai, China
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16
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Lotti T. [Successful combination treatment for psoriasis with phototherapy and low-dose cytokines: A spontaneous, retrospective observational clinical study]. Hautarzt 2015; 66:849-54. [PMID: 26449546 DOI: 10.1007/s00105-015-3698-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Psoriasis is a chronic, inflammatory autoimmune skin disease that affects 1-3% of the world's population. Most patients with psoriasis have plaque psoriasis or psoriasis vulgaris, characterized by thickened erythematous scaly plaques and presenting in a variety of forms with distinct characteristics. Psoriasis is associated with a decreased quality of life as well as with severe comorbidities. OBJECTIVES The aim of this spontaneous, retrospective observational clinical study was to evaluate the pharmacological activity of advanced treatment based on the use of UVA-1 laser therapy with or without the co-administration of low dose cytokines [interleukin (IL)-4, IL-10] and anti-IL-1 antibodies in patients affected by psoriasis vulgaris. RESULTS In this study the efficacy of UVA-1 phototherapy and, in parallel, the decisive (statistically relevant) boosting activity of low-dose cytokines in ameliorating the Psoriasis Area Severity Index (PASI) score were assessed. These results show the effectiveness of combined use of phototherapy and low-dose cytokines therapy, highlighting the fundamental role of anti-inflammatory cytokines (IL-4, IL-10, anti-IL-1 antibodies) in the treatment of psoriasis vulgaris. CONCLUSION Further studies are necessary to confirm these preliminary data.
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Affiliation(s)
- T Lotti
- Università degli Studi Guglielmo Marconi, Via Plinio, 44, 00193, Rome, Italien. .,Institute of Dermatology LifeCronos, Florence, Italien. .,World Health Academy Foundation, Zürich (CH), Schweiz.
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U1-RNP and Toll-like receptors in the pathogenesis of mixed connective tissue diseasePart II. Endosomal TLRs and their biological significance in the pathogenesis of mixed connective tissue disease. Reumatologia 2015; 53:143-51. [PMID: 27407241 PMCID: PMC4847297 DOI: 10.5114/reum.2015.53136] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 06/11/2015] [Indexed: 12/20/2022] Open
Abstract
Mixed connective tissue disease (MCTD) is a chronic autoimmune immunopathological disease of unknown etiology, which is characterized by the presence of various clinical symptoms and the presence of autoantibodies against U1-RNP particles. The U1-RNP component engages immune cells and their receptors in a complex network of interactions that ultimately lead to autoimmunity, inflammation, and tissue injury. The anti-U1-RNP autoantibodies form an immune complex with self-RNA, present in MCTD serum, which can act as endosomal Toll-like receptor (TLR) ligands. Inhibition of TLRs by nucleic acids is a promising area of research for the development of novel therapeutic strategies against pathogenic infection, tumorigenesis and autoimmunity. In this review we summarize current knowledge of endogenous TLRs and discuss their biological significance in the pathogenesis of MCTD. In part I we described the structure, biological function and significance of the U1-RNP complex in MCTD.
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Co-upregulation of Toll-like receptors 2 and 6 on peripheral blood cells in patients with obstructive sleep apnea. Sleep Breath 2015; 19:873-82. [PMID: 25604476 DOI: 10.1007/s11325-014-1116-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 12/01/2014] [Accepted: 12/29/2014] [Indexed: 01/01/2023]
Abstract
PURPOSE Toll-like receptor (TLR) 2 can heterodimerise with TLR6 to detect diacylated lipoproteins. Hypoxia inducible factor-1 α co-ordinates selective induction of TLR2 and TLR6 during persistent hypoxia. We hypothesized that TLR 2/6 co-expression may be upregulated by chronic intermittent hypoxia with re-oxygenation (IHR) in obstructive sleep apnea (OSA). METHODS TLR2/6 expressions on blood immune cells were measured in 144 patients with sleep-disordered breathing (SDB), including primary snoring (PS, n = 24), moderate to severe OSA (MSO, n = 60), very severe OSA (VSO, n = 36), and very severe OSA on continuous positive airway pressure (CPAP) treatment (VSOC, n = 24). An in vitro IHR experiment was also undertaken. RESULTS Patients in both the MSO and VSO groups had increased TLR2/6 co-expression on CD16(+) neutrophil than those in the PS group. Patients in the VSOC group had reduced TLR2/6 co-expression on neutrophil than those in either the MSO or VSO group. Blood absolute neutrophil count was positively but weakly correlated with TLR2/6 co-expression on neutrophil. TLR2/6 co-expressions on both CD14(+) monocyte and CD3(+)CD4(+)T helper cell, and TLR2 expressions on both monocyte and T helper cell in SDB patients with low Minimum SaO₂ (≦70%) were all higher than those with high Minimum SaO₂. In vitro IHR for 1-4 days resulted in TLR2/6 co-upregulation on both neutrophil and monocyte. CONCLUSIONS OSA patients had increased TLR2/6 co-expressions on blood immune cells, which were related to their immune cell counts and could be reversed with CPAP treatment. In vitro IHR could induce TLR2/6 co-upregulation.
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Chuang JY, Chang PC, Shen YC, Lin C, Tsai CF, Chen JH, Yeh WL, Wu LH, Lin HY, Liu YS, Lu DY. Regulatory effects of fisetin on microglial activation. Molecules 2014; 19:8820-39. [PMID: 24972270 PMCID: PMC6271444 DOI: 10.3390/molecules19078820] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/13/2014] [Accepted: 06/18/2014] [Indexed: 12/31/2022] Open
Abstract
Increasing evidence suggests that inflammatory processes in the central nervous system that are mediated by microglial activation play a key role in neurodegeneration. Fisetin, a plant flavonol commonly found in fruits and vegetables, is frequently added to nutritional supplements due to its antioxidant properties. In the present study, treatment with fisetin inhibited microglial cell migration and ROS (reactive oxygen species) production. Treatment with fisetin also effectively inhibited LPS plus IFN-γ-induced nitric oxide (NO) production, and inducible nitric oxide synthase (iNOS) expression in microglial cells. Furthermore, fisetin also reduced expressions of iNOS and NO by stimulation of peptidoglycan, the major component of the Gram-positive bacterium cell wall. Fisetin also inhibited the enhancement of LPS/IFN-γ- or peptidoglycan-induced inflammatory mediator IL (interlukin)-1 β expression. Besides the antioxidative and anti-inflammatory effects of fisetin, our study also elucidates the manner in fisetin-induced an endogenous anti-oxidative enzyme HO (heme oxygenase)-1 expression. Moreover, the regulatory molecular mechanism of fisetin-induced HO-1 expression operates through the PI-3 kinase/AKT and p38 signaling pathways in microglia. Notably, fisetin also significantly attenuated inflammation-related microglial activation and coordination deficit in mice in vivo. These findings suggest that fisetin may be a candidate agent for the development of therapies for inflammation-related neurodegenerative diseases.
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Affiliation(s)
- Jing-Yuan Chuang
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 40402, Taiwan.
| | - Pei-Chun Chang
- Department of Bioinformatics, Asia University, Taichung 41354, Taiwan.
| | - Yi-Chun Shen
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung 40402, Taiwan.
| | - Chingju Lin
- Department of Physiology, School of Medicine, China Medical University, Taichung 40402, Taiwan.
| | - Cheng-Fang Tsai
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan.
| | - Jia-Hong Chen
- Department of General Surgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 42743, Taiwan.
| | - Wei-Lan Yeh
- Department of Cell and Tissue Engineering, Changhua Christian Hospital, Changhua 500, Taiwan.
| | - Ling-Hsuan Wu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Hsiao-Yun Lin
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan.
| | - Yu-Shu Liu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 40402, Taiwan.
| | - Dah-Yuu Lu
- Graduate Institute of Neural and Cognitive Sciences, China Medical University, Taichung 40402, Taiwan.
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20
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Antineuroinflammatory effects of lycopene via activation of adenosine monophosphate-activated protein kinase-α1/heme oxygenase-1 pathways. Neurobiol Aging 2014; 35:191-202. [DOI: 10.1016/j.neurobiolaging.2013.06.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 05/21/2013] [Accepted: 06/30/2013] [Indexed: 12/21/2022]
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Trial J, Cieslik KA, Haudek SB, Duerrschmid C, Entman ML. Th1/M1 conversion to th2/m2 responses in models of inflammation lacking cell death stimulates maturation of monocyte precursors to fibroblasts. Front Immunol 2013; 4:287. [PMID: 24065967 PMCID: PMC3776235 DOI: 10.3389/fimmu.2013.00287] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 09/03/2013] [Indexed: 12/31/2022] Open
Abstract
We have demonstrated that cardiac fibrosis arises from the differentiation of monocyte-derived fibroblasts. We present here evidence that this process requires sequential Th1 and Th2 induction promoting analogous M1 (classically activated) and M2 (alternatively activated) macrophage polarity. Our models are: (1) mice subjected to daily repetitive ischemia and reperfusion (I/R) without infarction and (2) the in vitro transmigration of human mononuclear leukocytes through human cardiac microvascular endothelium. In the mouse heart, leukocytes entered after I/R in response to monocyte chemoattractant protein-1 (MCP-1), which is the major cytokine induced by this protocol. Monocytes within the heart then differentiated into fibroblasts making collagen while bearing the markers of M2 macrophages. T cells were seen in these hearts as well as in the human heart with cardiomyopathy. In the in vitro model, transmigration of the leukocytes was likewise induced by MCP-1 and some monocytes matured into fibroblasts bearing M2 markers. In this model, the MCP-1 stimulus induced a transient Th1 and M1 response that developed into a predominantly Th2 and M2 response. An increase in the Th2 product IL-13 was present in both the human and the mouse models, consistent with its known role in fibrosis. In these simplified models, in which there is no cell death to stimulate an anti-inflammatory response, there is nonetheless a resolution of inflammation enabling a profibrotic environment. This induces the maturation of monocyte precursors into fibroblasts.
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Affiliation(s)
- Joann Trial
- Division of Cardiovascular Sciences, Department of Medicine, DeBakey Heart Center, Baylor College of Medicine , Houston, TX , USA ; Houston Methodist , Houston, TX , USA
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Wang NK, Lai CC, Liu CH, Yeh LK, Chou CL, Kong J, Nagasaki T, Tsang SH, Chien CL. Origin of fundus hyperautofluorescent spots and their role in retinal degeneration in a mouse model of Goldmann-Favre syndrome. Dis Model Mech 2013; 6:1113-22. [PMID: 23828046 PMCID: PMC3759331 DOI: 10.1242/dmm.012112] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Goldmann-Favre syndrome, also known as enhanced S-cone syndrome, is an inherited retinal degeneration disease in which a gain of photoreceptor cell types results in retinal dysplasia and degeneration. Although microglia have been implicated in the pathogenesis of many neurodegenerative diseases, the fundamental role of these cells in this disease is unknown. In the current study, sequential analyses suggest that microglia are recruited and appear after outer nuclear layer folding. By crossing rd7 mice (a model for hereditary retinal degeneration owing to Nr2e3 mutation) with mice carrying the macrophage Fas-induced apoptosis (Mafia) transgene, we generated double-mutant mice and studied the role of the resident retinal microglia. Microglial cells in these double-mutant mice express enhanced green fluorescent protein (EGFP) and a suicide gene that can trigger Fas-mediated apoptosis via systemic treatment with AP20187 (FK506 dimerizer). We demonstrated that more than 80% of the EGFP+ cells in retinas from rd7/rd7;Tg/Tg mice express Iba-1 (a microglial marker), and resident microglia are still present in the retina because AP20187 does not cross the blood-brain barrier. Hence, only circulating bone marrow (BM)-derived microglia are depleted. Depletion of circulating BM-derived microglia accelerates retinal degeneration in rd7 mice. An increased number of autofluorescent (AF) spots is a consequence of resident microglia proliferation, which in turn establishes an inflammatory cytokine milieu via the upregulation of IL-1β, IL-6 and TNFα expression. This inflammation is likely to accelerate retinal degeneration. This study not only identifies inflammation as a crucial step in the pathogenesis of retinal degeneration, but also highlights the involvement of specific cytokine genes that could serve as future treatment targets in retinal degenerations.
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Affiliation(s)
- Nan-Kai Wang
- Department of Anatomy and Cell Biology, National Taiwan University, Taipei 100, Taiwan
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Lu DY, Huang BR, Yeh WL, Lin HY, Huang SS, Liu YS, Kuo YH. Anti-neuroinflammatory Effect of a Novel Caffeamide Derivative, KS370G, in Microglial cells. Mol Neurobiol 2013; 48:863-74. [DOI: 10.1007/s12035-013-8474-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 05/07/2013] [Indexed: 11/29/2022]
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Martner A, Ostman S, Lundin S, Rask C, Björnsson V, Telemo E, Collins LV, Axelsson L, Wold AE. Stronger T cell immunogenicity of ovalbumin expressed intracellularly in Gram-negative than in Gram-positive bacteria. PLoS One 2013; 8:e65124. [PMID: 23741469 PMCID: PMC3669294 DOI: 10.1371/journal.pone.0065124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 04/22/2013] [Indexed: 11/18/2022] Open
Abstract
This study aimed to clarify whether Gram-positive (G+) and Gram-negative (G−) bacteria affect antigen-presenting cells differently and thereby influence the immunogenicity of proteins they express. Lactobacilli, lactococci and Escherichia coli strains were transformed with plasmids conferring intracellular ovalbumin (OVA) production. Murine splenic antigen presenting cells (APCs) were pulsed with washed and UV-inactivated OVA-producing bacteria, control bacteria, or soluble OVA. The ability of the APCs to activate OVA-specific DO11.10 CD4+ T cells was assessed by measurments of T cell proliferation and cytokine (IFN-γ, IL-13, IL-17, IL-10) production. OVA expressed within E. coli was strongly immunogenic, since 500 times higher concentrations of soluble OVA were needed to achieve a similar level of OVA-specific T cell proliferation. Furthermore, T cells responding to soluble OVA produced mainly IL-13, while T cells responding to E. coli-expressed OVA produced high levels of both IFN-γ and IL-13. Compared to E. coli, G+ lactobacilli and lactococci were poor inducers of OVA-specific T cell proliferation and cytokine production, despite efficient intracellular expression and production of OVA and despite being efficiently phagocytosed. These results demonstrate a pronounced difference in immunogenicity of intracellular antigens in G+ and G− bacteria and may be relevant for the use of bacterial carriers in vaccine development.
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Affiliation(s)
- Anna Martner
- Department of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden.
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Ebersole JL, Dawson DR, Morford LA, Peyyala R, Miller CS, Gonzaléz OA. Periodontal disease immunology: 'double indemnity' in protecting the host. Periodontol 2000 2013; 62:163-202. [PMID: 23574466 PMCID: PMC4131201 DOI: 10.1111/prd.12005] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
During the last two to three decades our understanding of the immunobiology of periodontal disease has increased exponentially, both with respect to the microbial agents triggering the disease process and the molecular mechanisms of the host engagement maintaining homeostasis or leading to collateral tissue damage. These foundational scientific findings have laid the groundwork for translating cell phenotype, receptor engagement, intracellular signaling pathways and effector functions into a 'picture' of the periodontium as the host responds to the 'danger signals' of the microbial ecology to maintain homeostasis or succumb to a disease process. These findings implicate the chronicity of the local response in attempting to manage the microbial challenge, creating a 'Double Indemnity' in some patients that does not 'insure' health for the periodontium. As importantly, in reflecting the title of this volume of Periodontology 2000, this review attempts to inform the community of how the science of periodontal immunology gestated, how continual probing of the biology of the disease has led to an evolution in our knowledge base and how more recent studies in the postgenomic era are revolutionizing our understanding of disease initiation, progression and resolution. Thus, there has been substantial progress in our understanding of the molecular mechanisms of host-bacteria interactions that result in the clinical presentation and outcomes of destructive periodontitis. The science has embarked from observations of variations in responses related to disease expression with a focus for utilization of the responses in diagnosis and therapeutic outcomes, to current investigations using cutting-edge fundamental biological processes to attempt to model the initiation and progression of soft- and hard-tissue destruction of the periodontium. As importantly, the next era in the immunobiology of periodontal disease will need to engage more sophisticated experimental designs for clinical studies to enable robust translation of basic biologic processes that are in action early in the transition from health to disease, those which stimulate microenvironmental changes that select for a more pathogenic microbial ecology and those that represent a rebalancing of the complex host responses and a resolution of inflammatory tissue destruction.
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Huang BR, Tsai CF, Lin HY, Tseng WP, Huang SS, Wu CR, Lin C, Yeh WL, Lu DY. Interaction of inflammatory and anti-inflammatory responses in microglia by Staphylococcus aureus-derived lipoteichoic acid. Toxicol Appl Pharmacol 2013; 269:43-50. [DOI: 10.1016/j.taap.2013.03.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 02/25/2013] [Accepted: 03/05/2013] [Indexed: 01/21/2023]
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27
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Liu G, Yang H. Modulation of macrophage activation and programming in immunity. J Cell Physiol 2013; 228:502-12. [PMID: 22777800 DOI: 10.1002/jcp.24157] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 06/29/2012] [Indexed: 12/11/2022]
Abstract
Macrophages are central mediators of the immune, contributing both to the initiation and the resolution of inflammation. The concept of macrophage activation and program has stimulated interest in its definition, and functional significance in homeostasis and diseases. It has been known that macrophages could be differently activated and programmed into different functional subtypes in response to different types of antigen stumuli or different kinds of cytokines present in the microenvironment and could thus profoundly influence immune responses, but little is known about the state and exact regulatory mechanism of macrophage activation and program from cell or molecular signaling level in immunity. In this review, we summarize the recent finding regarding the regulatory mechanism of macrophage activation and program toward M1 and M2, especially on M2 macrophages.
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Affiliation(s)
- Guangwei Liu
- Department of Immunology, Shanghai Medical College, Fudan University, Shanghai, PR China.
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