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Lee HJ, Oh JY. Mesenchymal Stem/Stromal Cells Induce Myeloid-Derived Suppressor Cells in the Bone Marrow via the Activation of the c-Jun N-Terminal Kinase Signaling Pathway. Int J Mol Sci 2024; 25:1119. [PMID: 38256195 PMCID: PMC10816501 DOI: 10.3390/ijms25021119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
Our previous study demonstrated that mesenchymal stem/stromal cells (MSCs) induce the differentiation of myeloid-derived suppressor cells (MDSCs) in the bone marrow (BM) under inflammatory conditions. In this study, we aimed to investigate the signaling pathway involved. RNA-seq revealed that the mitogen-activated protein kinase (MAPK) pathway exhibited the highest number of upregulated genes in MSC-induced MDSCs. Western blot analysis confirmed the strong phosphorylation of c-Jun N-terminal kinase (JNK) in BM cells cocultured with MSCs under granulocyte-macrophage colony-stimulating factor stimulation, whereas p38 kinase activation remained unchanged in MSC-cocultured BM cells. JNK inhibition by SP600125 abolished the expression of Arg1 and Nos2, hallmark genes of MDSCs, as well as Hif1a, a molecule mediating monocyte functional reprogramming toward a suppressive phenotype, in MSC-cocultured BM cells. JNK inhibition also abrogated the effects of MSCs on the production of TGF-β1, TGF-β2 and IL-10 in BM cells. Furthermore, JNK inhibition increased Tnfa expression, while suppressing IL-10 production, in MSC-cocultured BM cells in response to lipopolysaccharides. Collectively, our results suggest that MSCs induce MDSC differentiation and promote immunoregulatory cytokine production in BM cells during inflammation, at least in part, through the activation of the JNK-MAPK signaling pathway.
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Affiliation(s)
- Hyun Ju Lee
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea;
| | - Joo Youn Oh
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea;
- Department of Ophthalmology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
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2
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Eissa N, Awad MA, Thomas SD, Venkatachalam K, Jayaprakash P, Zhong S, Stark H, Sadek B. Simultaneous Antagonism at H3R/D2R/D3R Reduces Autism-like Self-Grooming and Aggressive Behaviors by Mitigating MAPK Activation in Mice. Int J Mol Sci 2022; 24:ijms24010526. [PMID: 36613969 PMCID: PMC9820264 DOI: 10.3390/ijms24010526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/31/2022] Open
Abstract
Dysregulation in brain neurotransmitters underlies several neuropsychiatric disorders, e.g., autism spectrum disorder (ASD). Also, abnormalities in the extracellular-signal-regulated kinase (ERK)/mitogen-activated protein kinase (MAPK) pathway pave the way for neuroinflammation, neurodegeneration, and altered learning phenotype in ASD. Therefore, the effects of chronic systemic administration of the multiple-targeting antagonist ST-713 at the histamine H3 receptor (H3R) and dopamine D2/D3 receptors (D2/D3R) on repetitive self-grooming, aggressive behaviors, and abnormalities in the MAPK pathway in BTBR T + Itpr3tf/J (BTBR) mice were assessed. The results showed that ST-713 (2.5, 5, and 10 mg/kg, i.p.) mitigated repetitive self-grooming and aggression in BTBR mice (all p < 0.05), and the ameliorative effects of the most promising dose of ST-713 (5 mg/kg, i.p.) on behaviors were completely abrogated by co-administration of the H3R agonist (R)-α-methylhistamine or the anticholinergic drug scopolamine. Moreover, the elevated levels of several MAPK pathway proteins and induced proinflammatory markers such as tumor necrosis factor (TNF-α), interleukin-1β (IL-1β), and IL-6 were significantly suppressed following chronic administration of ST-713 (5 mg/kg, i.p.) (all p < 0.01). Furthermore, ST-713 significantly increased the levels of histamine and dopamine in hippocampal tissue of treated BTBR mice (all p < 0.01). The current observations signify the potential role of such multiple-targeting compounds, e.g., ST-713, in multifactorial neurodevelopmental disorders such as ASD.
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Affiliation(s)
- Nermin Eissa
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi P.O. Box 59911, United Arab Emirates
| | - Mohamed Al Awad
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Shilu Deepa Thomas
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Karthikkumar Venkatachalam
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Petrilla Jayaprakash
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Sicheng Zhong
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitaetsstr. 1, 40225 Düsseldorf, Germany
| | - Holger Stark
- Institute of Pharmaceutical and Medicinal Chemistry, Heinrich Heine University Düsseldorf, Universitaetsstr. 1, 40225 Düsseldorf, Germany
| | - Bassem Sadek
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence:
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3
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Downregulation of IL-8 and IL-10 by the Activation of Ca2+-Activated K+ Channel KCa3.1 in THP-1-Derived M2 Macrophages. Int J Mol Sci 2022; 23:ijms23158603. [PMID: 35955737 PMCID: PMC9368915 DOI: 10.3390/ijms23158603] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 07/26/2022] [Indexed: 02/04/2023] Open
Abstract
THP-1-differentiated macrophages are useful for investigating the physiological significance of tumor-associated macrophages (TAMs). In the tumor microenvironment (TME), TAMs with the M2-like phenotype play a critical role in promoting cancer progression and metastasis by inhibiting the immune surveillance system. We examined the involvement of Ca2+-activated K+ channel KCa3.1 in TAMs in expressing pro-tumorigenic cytokines and angiogenic growth factors. In THP-1-derived M2 macrophages, the expression levels of IL-8 and IL-10 were significantly decreased by treatment with the selective KCa3.1 activator, SKA-121, without changes in those of VEGF and TGF-β1. Furthermore, under in vitro experimental conditions that mimic extracellular K+ levels in the TME, IL-8 and IL-10 levels were both significantly elevated, and these increases were reversed by combined treatment with SKA-121. Among several signaling pathways potentially involved in the transcriptional regulation of IL-8 and IL-10, respective treatments with ERK and JNK inhibitors significantly repressed their transcriptions, and treatment with SKA-121 significantly reduced the phosphorylated ERK, JNK, c-Jun, and CREB levels. These results strongly suggest that the KCa3.1 activator may suppress IL-10-induced tumor immune surveillance escape and IL-8-induced tumorigenicity and metastasis by inhibiting their production from TAMs through ERK-CREB and JNK-c-Jun cascades.
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4
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Yang J, Xu H, Chen K, Zheng D, Liu S, Zhou X, Lin Y, Cheng H, Luo Q, Yang M, Yan X, Hao J. Platelets-Derived miR-200a-3p Modulate the Expression of ET-1 and VEGFA in Endothelial Cells by Targeting MAPK14. Front Physiol 2022; 13:893102. [PMID: 35755441 PMCID: PMC9224407 DOI: 10.3389/fphys.2022.893102] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/13/2022] [Indexed: 12/03/2022] Open
Abstract
The interaction between platelets and vascular endothelial cells plays a pivotal role in the pathophysiology of acute ischemic stroke (AIS), especially in atherosclerosis formation. However, the underlying mechanism is not entirely clear. The aim of this study was to elucidate the role of platelets-derived miRNA in the development of atherosclerosis and AIS. We evaluated the miRNA expression profiles of serum microvesicles (MV) in five AIS patients and five healthy controls using RNA-seq, and then measured the levels of selected platelets derived miRNAs by qRT-PCR. miR-200a-3p expression in the serum MV and platelets had increased to 1.41 (p < 0.05) and 3.29 times (p < 0.001), respectively, in AIS patients compared with healthy controls, and was modified by severity of AIS. We transferred Cy5-miR-200a-3p into platelets, collected and identified platelets-derived MV (PMVs). Then, the gene expression of p38 MAPK/c-Jun pathway was analyzed using both miR-200a-3p gain- and loss-of-function experiments and PMVs coincubation with HUVEC. The results showed that activated platelets remotely modulated endothelins 1 (ET-1) and vascular endothelial growth factor A (VEGFA) levels in HUVEC through the release of miR-200a-3p-containing PMVs via targeting MAPK14. The results of ROC analyses showed that combination of platelet miR-200a-3p, serum ET-1 and VEGFA levels had an AUC of 0.817, a sensitivity of 70%, and a specificity of 89%. Our results presented new evidence that activated platelets could remotely modulate ET-1 and VEGFA expression in HUVEC via releasing miR-200a-3p-enriched PMVs, which provides a potential miRNA-based predictive biomarker and therapeutic strategy for atherosclerosis and AIS.
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Affiliation(s)
- Jie Yang
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Hong Xu
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Kejie Chen
- School of Public Health, Chengdu Medical College, Chengdu, China
| | - Danni Zheng
- Biomedical Informatics and Digital Health, School of Medical Sciences, University of Sydney, Sydney, NSW, Australia
| | - Shuang Liu
- School of Biomedical Sciences and Technology, Chengdu Medical College, Chengdu, China
| | - Xia Zhou
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Yapeng Lin
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Hang Cheng
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Qin Luo
- School of Biomedical Sciences and Technology, Chengdu Medical College, Chengdu, China
| | - Min Yang
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Xiaoyan Yan
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Junli Hao
- Department of Neurology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, China.,School of Biomedical Sciences and Technology, Chengdu Medical College, Chengdu, China
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5
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White MG, Szczepaniak Sloane R, Witt RG, Reuben A, Gaudreau PO, Andrews MC, Feng N, Johnson S, Class CA, Bristow C, Wani K, Hudgens C, Nezi L, Manzo T, De Macedo MP, Hu J, Davis R, Jiang H, Prieto P, Burton E, Hwu P, Tawbi H, Gershenwald J, Lazar AJ, Tetzlaff MT, Overwijk W, Woodman SE, Cooper ZA, Marszalek JR, Davies MA, Heffernan TP, Wargo JA. Short-term treatment with multi-drug regimens combining BRAF/MEK-targeted therapy and immunotherapy results in durable responses in Braf-mutated melanoma. Oncoimmunology 2021; 10:1992880. [PMID: 34777916 PMCID: PMC8583008 DOI: 10.1080/2162402x.2021.1992880] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Targeted and immunotherapy regimens have revolutionized the treatment of advanced melanoma patients. Despite this, only a subset of patients respond durably. Recently, combination strategies of BRAF/MEK inhibitors with immune checkpoint inhibitor monotherapy (α-CTLA-4 or α-PD-1) have increased the rate of durable responses. Based on evidence from our group and others, these therapies appear synergistic, but at the cost of significant toxicity. We know from other treatment paradigms (e.g. hematologic malignancies) that combination strategies with multi-drug regimens (>4 drugs) are associated with more durable disease control. To better understand the mechanism of these improved outcomes, and to identify and prioritize new strategies for testing, we studied several multi-drug regimens combining BRAF/MEK targeted therapy and immunotherapy combinations in a Braf-mutant murine melanoma model (BrafV600E/Pten−/−). Short-term treatment with α-PD-1 and α-CTLA-4 monotherapies were relatively ineffective, while treatment with α-OX40 demonstrated some efficacy [17% of mice with no evidence of disease, (NED), at 60-days]. Outcomes were improved in the combined α-OX40/α-PD-1 group (42% NED). Short-term treatment with quadruplet therapy of immunotherapy doublets in combination with targeted therapy [dabrafenib and trametinib (DT)] was associated with excellent tumor control, with 100% of mice having NED after combined DT/α-CTLA-4/α-PD-1 or DT/α-OX40/α-PD-1. Notably, tumors from mice in these groups demonstrated a high proportion of effector memory T cells, and immunologic memory was maintained with tumor re-challenge. Together, these data provide important evidence regarding the potential utility of multi-drug therapy in treating advanced melanoma and suggest these models can be used to guide and prioritize combinatorial treatment strategies.
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Affiliation(s)
- Michael G White
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Russell G Witt
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alexandre Reuben
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Pierre Olivier Gaudreau
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Miles C Andrews
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia.,School of Cancer Medicine, La Trobe University, Heidelberg, Victoria, Australia
| | - Ningping Feng
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology (TRACTION), University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sarah Johnson
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Caleb A Class
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Christopher Bristow
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology (TRACTION), University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Khalida Wani
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Courtney Hudgens
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Luigi Nezi
- Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Teresa Manzo
- Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Jianhua Hu
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Richard Davis
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hong Jiang
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Peter Prieto
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Elizabeth Burton
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Patrick Hwu
- Department of Melanoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hussein Tawbi
- Department of Melanoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jeffrey Gershenwald
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alexander J Lazar
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael T Tetzlaff
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Willem Overwijk
- Department of Melanoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Oncology Research, Nektar Therapeutics, San Francisco, CA, USA
| | - Scott E Woodman
- Department of Melanoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Zachary A Cooper
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Translational Sciences Oncology, MedImmune, Gaithersburg, MD, USA
| | - Joseph R Marszalek
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology (TRACTION), University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael A Davies
- Department of Melanoma Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Timothy P Heffernan
- Translational Research to AdvanCe Therapeutics and Innovation in ONcology (TRACTION), University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jennifer A Wargo
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Genomic Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
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6
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PIWIL1 governs the crosstalk of cancer cell metabolism and immunosuppressive microenvironment in hepatocellular carcinoma. Signal Transduct Target Ther 2021; 6:86. [PMID: 33633112 PMCID: PMC7907082 DOI: 10.1038/s41392-021-00485-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/24/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023] Open
Abstract
Altered energy metabolism of cancer cells shapes the immune cell response in the tumor microenvironment that facilitates tumor progression. Herein, we reported the novel of tumor cell-expressed Piwi Like RNA-Mediated Gene Silencing 1 (PIWIL1) in mediating the crosstalk of fatty acid metabolism and immune response of human hepatocellular carcinoma (HCC). PIWIL1 expression in HCC was increased compared to normal hepatic tissues and was positively correlated with the proliferation rate of HCC cell lines. PIWIL1 overexpression accelerated in vitro proliferation and in vivo growth of HCC tumors, while PIWIL1 knockdown showed opposite effects. PIWIL1 increased oxygen consumption and energy production via fatty acid metabolism without altering aerobic glycolysis. Inhibition of fatty acid metabolism abolished PIWIL1-induced HCC proliferation and growth. RNA-seq analysis revealed that immune system regulation might be involved, which was echoed by the experimental observation that PIWIL1-overexpressing HCC cells attracted myeloid-derived suppressor cells (MDSCs) into the tumor microenvironment. MDSCs depletion reduced the proliferation and growth of PIWIL1-overexpressing HCC tumors. Complement C3, whose secretion was induced by PIWIL1 in HCC cells, mediates the interaction of HCC cells with MDSCs by activated p38 MAPK signaling in MDSCs, which in turn initiated expression of immunosuppressive cytokine IL10. Neutralizing IL10 secretion reduced the immunosuppressive activity of MDSCs in the microenvironment of PIWIL1-overexpressing HCC. Taken together, our study unraveled the critical role of PIWIL1 in initiating the interaction of cancer cell metabolism and immune cell response in HCC. Tumor cells-expressed PIWIL1 may be a potential target for the development of novel HCC treatment.
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7
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Song HY, Kim WS, Han JM, Seo HS, Lim ST, Byun EB. Galangin treatment during dendritic cell differentiation confers tolerogenic properties in response to lipopolysaccharide stimulation. J Nutr Biochem 2021; 87:108524. [PMID: 33039583 DOI: 10.1016/j.jnutbio.2020.108524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 09/15/2020] [Accepted: 09/30/2020] [Indexed: 12/28/2022]
Abstract
Tolerogenic dendritic cells (tolDCs) can induce the differentiation of immunosuppressive regulatory T cells and are therefore candidates for the prevention or treatment of various inflammatory diseases. Galangin, a major component of propolis and Alpinia officinarum, has well-established anti-inflammatory effects, but its ability to induce a tolerogenic state in DCs has not been demonstrated. In this study, we investigated the effects of galangin on DC differentiation and immune responses. In particular, we compared phenotypic and functional differences between DCs (Gal-DCs) generated by galangin treatment during DC differentiation and bone marrow-derived DCs. Gal-DCs were generated by adding culture medium containing various doses of galangin (1.8-18.5 µM) on 3 and 6 day. Upon lipopolysaccharide (100 ng/mL) stimulation for 24 h, Gal-DCs generated with 7.4 µM galangin treatment showed lower levels of CD86 and lower major histocompatibility complex class II antigen-presentation than those of bone marrow-derived DCs. Furthermore, Gal-DCs showed markedly increased programmed death ligand 1 expression and IL-10 production via the activation of mitogen-activated protein kinases. Interestingly, Gal-DCs co-cultured with allogeneic CD4 T cells exhibited the reduced cell proliferation and differentiation into Th1-, Th2-, and Th17-type cell; instead, Gal-DCs contributed to the induction of CD4+CD25+Foxp3+ Tregs. Taken together, our data suggest that exposure to galangin during DC differentiation confers tolerogenic properties, efficiently inducing Th cell differentiation to immunosuppressive Tregs. These findings provide new insights into the molecular mechanism underlying the anti-inflammatory effects of galangin on DCs.
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Affiliation(s)
- Ha-Yeon Song
- Research Division for Radiation Science, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea; Department of Biotechnology, College of Life science and Biotechnology, Korea University, Seoul, Republic of Korea.
| | - Woo Sik Kim
- Research Division for Radiation Science, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
| | - Jeong Moo Han
- Research Division for Radiation Science, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea; Department of Biotechnology, College of Life science and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Ho Seong Seo
- Research Division for Radiation Science, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
| | - Seung-Taik Lim
- Department of Biotechnology, College of Life science and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Eui-Baek Byun
- Research Division for Radiation Science, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup, Republic of Korea
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8
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Lin S, Kühn F, Schiergens TS, Zamyatnin AA, Isayev O, Gasimov E, Werner J, Li Y, Bazhin AV. Experimental postoperative ileus: is Th2 immune response involved? Int J Med Sci 2021; 18:3014-3025. [PMID: 34220330 PMCID: PMC8241774 DOI: 10.7150/ijms.59354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/24/2021] [Indexed: 12/14/2022] Open
Abstract
Rationale: Postoperative ileus (POI) is a frequent complication arising after gastrointestinal surgery but pathogenesis of POI is still not fully understood. While Th1 immune cells are implicated in POI, the involvement of Th2 cells has not yet been clarified. Given the impact of reactive oxygen species (ROS) in the regulation of Th1 and Th2 balance, we hypothesized that not only Th1 but also Th2 immune response can be involved in the development of experimental POI. Methods: The intestinal transit test was performed using carbon gum arabic. Electron microscopy was employed to assess tissue morphology and the presence of immune cells. Cytokines, IgE and ROS were measured. Immune cells from Peyer's patches were analyzed by Flow Cytometry and toluidine blue staining was used for detection of mast cells. Transcriptional factors were analyzed by Western blot. Results: POI is associated with an increase in both Th2 cytokines and Th2 cells. We have further demonstrated that POI induces a Th2-dependent activation of memory and non-memory B cells. This was accompanied by an increase in a number of mast cells in the colon of POI mice as well by an increased IgE and histamine plasma levels. We found that POI-induced accumulation of ROS was associated with an increased expression of the transcriptional factors HMBGI, NF-κB, and p38. This increased expression seemed to be associated with a Th2 response. Conclusion: Th2 immune response can be involved in the activation of mast cells in POI, which was associated with ROS mediated activation of NF-κB and p38 MAPK signaling pathway.
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Affiliation(s)
- Sisi Lin
- Department of Pathophysiology, Institute of Digestive Disease, Tongji University School of Medicine, 200092, Shanghai, China.,Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, 81377, Munich, Germany
| | - Florian Kühn
- Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, 81377, Munich, Germany
| | - Tobias S Schiergens
- Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, 81377, Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, 81377 Munich, Germany
| | - Andrey A Zamyatnin
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991, Moscow, Russia.,Department of Cell Signaling, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Orkhan Isayev
- Department of Histology, Embryology and Cytology, Azerbaijan Medical University, Baku, Azerbaijan
| | - Eldar Gasimov
- Department of Histology, Embryology and Cytology, Azerbaijan Medical University, Baku, Azerbaijan
| | - Jens Werner
- Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, 81377, Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, 81377 Munich, Germany
| | - Yongyu Li
- Department of Pathophysiology, Institute of Digestive Disease, Tongji University School of Medicine, 200092, Shanghai, China
| | - Alexandr V Bazhin
- Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, 81377, Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, 81377 Munich, Germany
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9
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Suzuki H, Yamazaki T, Ohshio K, Sugamata M, Yoshikawa M, Kanauchi O, Morita Y. A Specific Strain of Lactic Acid Bacteria, Lactobacillus paracasei, Inhibits Inflammasome Activation In Vitro and Prevents Inflammation-Related Disorders. THE JOURNAL OF IMMUNOLOGY 2020; 205:811-821. [PMID: 32591398 DOI: 10.4049/jimmunol.1900657] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 06/04/2020] [Indexed: 12/23/2022]
Abstract
Some strains of lactic acid bacteria (LAB) have anti-inflammatory effects, but the mechanism underlying the alleviation of inflammation by LAB is not fully understood. In this study, we examined the inhibitory effect of a certain strain of LAB, Lactobacillus paracasei, on inflammasome activation, which is associated with various inflammatory disorders. Using bone marrow-derived macrophages from BALB/c mice, we found that L. paracasei, but not L. rhamnosus, suppressed NLRP3 inflammasome activation and inhibited subsequent caspase-1 activation and IL-1β secretion. L. paracasei also had inhibitory effects on AIM2 and NLRC4 inflammasome activation as well as the NLRP3 inflammasome. These inhibitory effects of L. paracasei on inflammasome activation were dependent on autocrine IL-10 induced by L. paracasei-stimulated macrophages. Furthermore, IL-10 production by L. paracasei-stimulated macrophages was involved with phagocytosis and the NOD2 signaling pathway in macrophages. In addition to in vitro studies, oral administration of L. paracasei in C57BL/6 mice reduced monosodium urate crystal-induced peritoneal inflammation in vivo. Moreover, continuous intake of L. paracasei in C57BL/6 mice alleviated high fat diet-induced insulin resistance and aging-induced expression of biomarkers for T cell senescence. Taken together, we demonstrated that L. paracasei inhibits inflammasome activation in vitro and exhibits an anti-inflammatory function in vivo. These results indicate that LAB that have inhibitory effects on inflammasome activation might contribute to the alleviation of inflammation-related disorders.
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Affiliation(s)
- Hiroaki Suzuki
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
| | - Takahiro Yamazaki
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
| | - Konomi Ohshio
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
| | - Miho Sugamata
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
| | - Mia Yoshikawa
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
| | - Osamu Kanauchi
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
| | - Yuji Morita
- Research Laboratories for Health Science and Food Technologies, Kirin Holdings Company, Tokyo 236-0004, Japan
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10
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Singh RK, Najmi AK. Novel Therapeutic Potential of Mitogen-Activated Protein Kinase Activated Protein Kinase 2 (MK2) in Chronic Airway Inflammatory Disorders. Curr Drug Targets 2020; 20:367-379. [PMID: 30112991 DOI: 10.2174/1389450119666180816121323] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/17/2018] [Accepted: 08/09/2018] [Indexed: 02/04/2023]
Abstract
OBJECTIVE The primary focus of this review is to highlight the current and emerging proinflammatory role of MK2 kinase signaling in p38MAPK pathway and to provide a detailed evaluation on the prospects of MK2 inhibition with special emphasis on the etiology of chronic inflammatory airway diseases, such as asthma, idiopathic pulmonary fibrosis, lung cancer, acute lung injury and acute respiratory distress syndrome. BACKGROUND MK2 belongs to serine-threonine kinase family and is activated directly by stress and inflammatory signal through p38MAPK phosphorylation in diverse inflammatory conditions through the Toll-like receptor signaling pathway. MK2 has been thought to be a critical factor involved in the regulation of synthesis and release of pro-inflammatory (TNF-α, IL-6 and IL-1β, etc.) proteins. Targeted inhibition of MK2 kinase has been shown to significantly reduce the production and release of these cytokine molecules. Therefore, MK2 has been identified as an effective strategy (alternative to p38MAPK) to block this pro-inflammatory signaling pathway. RESULTS The inhibition of MK2 may lead to similar or better efficacy as that of p38 inhibitors, and interestingly avoids the systemic toxicity shown by the p38 inhibitors. Thus, MK2 has been the focus of intense interdisciplinary research and its specific inhibition can be a novel and potential therapeutic strategy for the treatment of chronic airway inflammatory diseases. CONCLUSION Promising advancement in understanding and rigorous exploration of the role of MK2 kinase in inflammatory processes may contribute to the development of newer and safer therapy for the treatment of chronic airway inflammatory diseases in the future.
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Affiliation(s)
- Rakesh Kumar Singh
- School of Pharmaceutical Sciences, Apeejay Stya University, Sohna, Gurgaon-122013, India.,Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi-110062, India
| | - Abul Kalam Najmi
- Department of Pharmacology, Faculty of Pharmacy, Jamia Hamdard, New Delhi-110062, India
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11
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Stanilova SA, Grigorov BG, Platikanova MS, Dobreva ZG. Effect of a Small Selective Inhibitor of C-Jun N-Terminal Kinase on the Inducible mRNA Expression of Interleukin-6 and Interleukin-18. Open Access Maced J Med Sci 2019; 7:2062-2067. [PMID: 31456826 PMCID: PMC6698100 DOI: 10.3889/oamjms.2019.567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND: The expression of many inducible genes, involved in cell growth and differentiation as cytokine genes are regulated by receptor-activated intracellular signalling pathways, including the c-Jun N-terminal kinase (JNK) mitogen-activated protein kinase pathway. AIM: We examined the involvement of the JNK signalling pathway in the regulation of the inducible interleukin-6 (IL-6) and interleukin-18 (IL-18) gene expression at the transcriptional level. METHODS: Peripheral blood mononuclear cells (PBMC) from healthy donors were stimulated with lipopolysaccharide (LPS) and C3 binding glycoprotein (C3bgp) with or without SP600125 and cultured for 6 h. After mRNA isolation, a qRT-PCR was performed. RESULTS: Regarding IL-6 and IL-18 mRNA expression, donors were divided into two groups of high and low responders. SP600125 inhibited significantly IL-6 mRNA transcription in the high responder group and did not influence the transcription level in the low responder group. Concerning IL-18 mRNA, we detect the significant effect of SP600125 on the inducible mRNA in high responder group upon C3bgp stimulation. CONCLUSION: JNK transduction pathway is involved in the production of IL-6 mRNA, after LPS and C3bgp stimulation. We suggest that the inhibition of JNK may be beneficial only for higher responding patients during the treatment of inflammatory and autoimmune diseases.
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Affiliation(s)
- Spaska A Stanilova
- Department of Molecular Biology, Immunology and Medical Genetics, Faculty of Medicine, Trakia University, Stara Zagora, Bulgaria
| | - Boncho G Grigorov
- Department of Molecular Biology, Immunology and Medical Genetics, Faculty of Medicine, Trakia University, Stara Zagora, Bulgaria
| | - Magdalena S Platikanova
- Department of Hygiene, Infectious Diseases and Epidemiology, Faculty of Medicine, Trakia University, Stara Zagora, Bulgaria
| | - Zlatka G Dobreva
- Department of Molecular Biology, Immunology and Medical Genetics, Faculty of Medicine, Trakia University, Stara Zagora, Bulgaria
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12
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Mostafavi N, Jeong A, Vlaanderen J, Imboden M, Vineis P, Jarvis D, Kogevinas M, Probst-Hensch N, Vermeulen R. The mediating effect of immune markers on the association between ambient air pollution and adult-onset asthma. Sci Rep 2019; 9:8818. [PMID: 31217483 PMCID: PMC6584571 DOI: 10.1038/s41598-019-45327-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 06/05/2019] [Indexed: 11/09/2022] Open
Abstract
We aim to investigate to what extent a set of immune markers mediate the association between air pollution and adult-onset asthma. We considered long-term exposure to multiple air pollution markers and a panel of 13 immune markers in peripheral blood samples collected from 140 adult cases and 199 controls using a nested-case control design. We tested associations between air pollutants and immune markers and adult-onset asthma using mixed-effects (logistic) regression models, adjusted for confounding variables. In order to evaluate a possible mediating effect of the full set of immune markers, we modelled the relationship between asthma and air pollution with a partial least square path model. We observed a strong positive association of IL-1RA [OR 1.37; 95% CI (1.09, 1.73)] with adult-onset asthma. Univariate models did not yield any association between air pollution and immune markers. However, mediation analyses indicated that 15% of the effect of air pollution on risk of adult-onset asthma was mediated through the immune system when considering all immune markers as a latent variable (path coefficient (β) = 0.09; 95% CI: (-0.02, 0.20)). This effect appeared to be stronger for allergic asthma (22%; β = 0.12; 95% CI: (-0.03, 0.27)) and overweight subjects (27%; β = 0.19; 95% CI: (-0.004, 0.38)). Our results provides supportive evidence for a mediating effect of the immune system in the association between air pollution and adult-onset asthma.
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Affiliation(s)
- Nahid Mostafavi
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, 3584 CM, Utrecht, the Netherlands
| | - Ayoung Jeong
- Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland.,Department of Public Health, University of Basel, Basel, Switzerland
| | - Jelle Vlaanderen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, 3584 CM, Utrecht, the Netherlands
| | - Medea Imboden
- Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland.,Department of Public Health, University of Basel, Basel, Switzerland
| | - Paolo Vineis
- Italian Institute for Genomic Medicine (IIGM), Turin, Italy.,Medical Research Council-Public Health England Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
| | - Debbie Jarvis
- Department of Public Health Sciences, King's College, London, UK
| | | | - Nicole Probst-Hensch
- Swiss Tropical and Public Health (TPH) Institute, Basel, Switzerland.,Department of Public Health, University of Basel, Basel, Switzerland
| | - Roel Vermeulen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, 3584 CM, Utrecht, the Netherlands. .,Medical Research Council-Public Health England Centre for Environment and Health, Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom. .,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
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13
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Regulatory T cells as a biomarker for response to adalimumab in rheumatoid arthritis. J Allergy Clin Immunol 2018; 142:978-980.e9. [PMID: 29935955 PMCID: PMC6127034 DOI: 10.1016/j.jaci.2018.04.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 04/11/2018] [Accepted: 04/27/2018] [Indexed: 10/28/2022]
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14
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Kwon HK, Jo WR, Park HJ. Immune-enhancing activity of C. militaris fermented with Pediococcus pentosaceus (GRC-ON89A) in CY-induced immunosuppressed model. Altern Ther Health Med 2018; 18:75. [PMID: 29475435 PMCID: PMC5824477 DOI: 10.1186/s12906-018-2133-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 02/08/2018] [Indexed: 12/30/2022]
Abstract
Background Cordyceps militaris (C. militaris) is reported to exert various immune-activities. To enhance its activity, we fermented C.militaris with Pediococcus pentosaceus ON89A (GRC-ON89A). In this study, we investigated the immune-enhancing activity GRC-ON89A, using immunosuppressed model. Methods Immunosuppression was induced by intraperitoneal injection of cyclophosphamide (CY). Each group was orally administered distilled water, GRC-ON89A or GRC, respectively. The phagocytic activities against IgG -opsonized FITC particles were measured using phagocytosis assay kit. The contents β-glucan, cordycepin and SCFA were measured using β-glucan kit, liquid chromatography-mass spectrometry analysis and Gas chromatography-mass spectrometry analysis, respectively. Results Among GRC fermented with different probiotic strains (Pediococcus pentossaceus ON89A, Lactobacillus pentosus SC64, Weissella cibaria Sal.Cla22), GRC-ON89A induced the highest elevation of nitric oxide production and enhanced phagocytic activity of RAW 264.7 cells. In primary cultured murine macrophages from normal and CY-treated mice, GRC-ON89A increased phagocytic activity, compared to that in control cells. GRC-ON89A also significantly induced the mRNA expression of TNF-α and IL-10 and the levels of phosphorylated Lyn, Syk and MAPK. The contents of β-glucan, cordycepin and SCFA in GRC significantly increased after ON89A fermentation, compared to those in unfermented GRC. Conclusion These results indicate that GRC-ON89A exerted the enhanced immunostimulatory activity and contained more nutritional components, compared to unfermented GRC. Our results suggested that GRC-ON89A may be applied as an agent for immune boosting therapy in immune suppressed patients.
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15
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Szczepaniak Sloane RA, Gopalakrishnan V, Reddy SM, Zhang X, Reuben A, Wargo JA. Interaction of molecular alterations with immune response in melanoma. Cancer 2017; 123:2130-2142. [PMID: 28543700 DOI: 10.1002/cncr.30681] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 02/10/2017] [Accepted: 02/21/2017] [Indexed: 01/01/2023]
Abstract
Major advances have been made in melanoma treatment with the use of molecularly targeted therapies and immunotherapies, and numerous regimens are now approved by the US Food and Drug Administration for patients with stage IV disease. However, therapeutic resistance remains an issue to both classes of agents, and reliable biomarkers of therapeutic response and resistance are lacking. Mechanistic insights are being gained through preclinical studies and translational research, offering potential strategies to enhance responses and survival in treated patients. A comprehensive understanding of the immune effects of common mutations at play in melanoma is critical, as is an appreciation of the molecular mechanisms contributing to therapeutic resistance to immunotherapy. These mechanisms and the interplay between them are discussed herein. Cancer 2017;123:2130-42. © 2017 American Cancer Society.
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Affiliation(s)
| | | | - Sangeetha M Reddy
- Department of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xue Zhang
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Alexandre Reuben
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jennifer A Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
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16
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Reddy SM, Reuben A, Wargo JA. Influences of BRAF Inhibitors on the Immune Microenvironment and the Rationale for Combined Molecular and Immune Targeted Therapy. Curr Oncol Rep 2017; 18:42. [PMID: 27215436 DOI: 10.1007/s11912-016-0531-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The identification of key driver mutations in melanoma has led to the development of targeted therapies aimed at BRAF and MEK, but responses are often limited in duration. There is growing evidence that MAPK pathway activation impairs antitumor immunity and that targeting this pathway may enhance responses to immunotherapies. There is also evidence that immune mechanisms of resistance to targeted therapy exist, providing the rationale for combining targeted therapy with immunotherapy. Preclinical studies have demonstrated synergy in combining these strategies, and combination clinical trials are ongoing. It is, however, becoming clear that additional translational studies are needed to better understand toxicity, proper timing, and sequence of therapy, as well as the utility of multidrug regimens and effects of other targeted agents on antitumor immunity. Insights gained through translational research in preclinical models and clinical studies will provide mechanistic insight into therapeutic response and resistance and help devise rational strategies to enhance therapeutic responses.
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Affiliation(s)
- Sangeetha M Reddy
- Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, 1400 Holcombe Blvd, Unit 463, Houston, TX, 77030, USA
| | - Alexandre Reuben
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Jennifer A Wargo
- Department of Surgical Oncology, Genomic Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.
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17
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Gruzieva O, Merid SK, Gref A, Gajulapuri A, Lemonnier N, Ballereau S, Gigante B, Kere J, Auffray C, Melén E, Pershagen G. Exposure to Traffic-Related Air Pollution and Serum Inflammatory Cytokines in Children. ENVIRONMENTAL HEALTH PERSPECTIVES 2017; 125:067007. [PMID: 28669936 PMCID: PMC5714301 DOI: 10.1289/ehp460] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 10/20/2016] [Accepted: 11/07/2016] [Indexed: 05/12/2023]
Abstract
BACKGROUND Long-term exposure to ambient air pollution can lead to adverse health effects in children; however, underlying biological mechanisms are not fully understood. OBJECTIVES We evaluated the effect of air pollution exposure during different time periods on mRNA expression as well as circulating levels of inflammatory cytokines in children. METHODS We measured a panel of 10 inflammatory markers in peripheral blood samples from 670 8-y-old children in the Barn/Child, Allergy, Milieu, Stockholm, Epidemiology (BAMSE) birth cohort. Outdoor concentrations of nitrogen dioxide (NO2) and particulate matter (PM) with aerodynamic diameter <10 μm (PM10) from road traffic were estimated for residential, daycare, and school addresses using dispersion modeling. Time-weighted average exposures during infancy and at biosampling were linked to serum cytokine levels using linear regression analysis. Furthermore, gene expression data from 16-year-olds in BAMSE (n=238) were used to evaluate links between air pollution exposure and expression of genes coding for the studied inflammatory markers. RESULTS A 10 μg/m3 increase of NO2 exposure during infancy was associated with a 13.6% (95% confidence interval (CI): 0.8; 28.1%) increase in interleukin-6 (IL-6) levels, as well as with a 27.8% (95% CI: 4.6, 56.2%) increase in IL-10 levels, the latter limited to children with asthma. However, no clear associations were observed for current exposure. Results were similar using PM10, which showed a high correlation with NO2. The functional analysis identified several differentially expressed genes in response to air pollution exposure during infancy, including IL10, IL13, and TNF;. CONCLUSION Our results indicate alterations in systemic inflammatory markers in 8-y-old children in relation to early-life exposure to traffic-related air pollution. https://doi.org/10.1289/EHP460.
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Affiliation(s)
- Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Simon Kebede Merid
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anna Gref
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ashwini Gajulapuri
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Nathanaël Lemonnier
- European Institute for Systems Biology and Medicine, CNRS-ENS-UCBL, Université de Lyon, Lyon, France
| | - Stéphane Ballereau
- European Institute for Systems Biology and Medicine, CNRS-ENS-UCBL, Université de Lyon, Lyon, France
| | - Bruna Gigante
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Juha Kere
- Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Charles Auffray
- European Institute for Systems Biology and Medicine, CNRS-ENS-UCBL, Université de Lyon, Lyon, France
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatrics, Sachs’ Children’s Hospital, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
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18
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Brockmann L, Gagliani N, Steglich B, Giannou AD, Kempski J, Pelczar P, Geffken M, Mfarrej B, Huber F, Herkel J, Wan YY, Esplugues E, Battaglia M, Krebs CF, Flavell RA, Huber S. IL-10 Receptor Signaling Is Essential for TR1 Cell Function In Vivo. THE JOURNAL OF IMMUNOLOGY 2016; 198:1130-1141. [PMID: 28003377 PMCID: PMC5263184 DOI: 10.4049/jimmunol.1601045] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 11/20/2016] [Indexed: 12/15/2022]
Abstract
IL-10 is essential to maintain intestinal homeostasis. CD4+ T regulatory type 1 (TR1) cells produce large amounts of this cytokine and are therefore currently being examined in clinical trials as T cell therapy in patients with inflammatory bowel disease. However, factors and molecular signals sustaining TR1 cell regulatory activity still need to be identified to optimize the efficiency and ensure the safety of these trials. We investigated the role of IL-10 signaling in mature TR1 cells in vivo. Double IL-10eGFP Foxp3mRFP reporter mice and transgenic mice with impairment in IL-10 receptor signaling were used to test the activity of TR1 cells in a murine inflammatory bowel disease model, a model that resembles the trials performed in humans. The molecular signaling was elucidated in vitro. Finally, we used human TR1 cells, currently employed for cell therapy, to confirm our results. We found that murine TR1 cells expressed functional IL-10Rα. TR1 cells with impaired IL-10 receptor signaling lost their regulatory activity in vivo. TR1 cells required IL-10 receptor signaling to activate p38 MAPK, thereby sustaining IL-10 production, which ultimately mediated their suppressive activity. Finally, we confirmed these data using human TR1 cells. In conclusion, TR1 cell regulatory activity is dependent on IL-10 receptor signaling. These data suggest that to optimize TR1 cell-based therapy, IL-10 receptor expression has to be taken into consideration.
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Affiliation(s)
- Leonie Brockmann
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Nicola Gagliani
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany.,Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Babett Steglich
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Anastasios D Giannou
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Jan Kempski
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Penelope Pelczar
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Maria Geffken
- Institut für Transfusionsmedizin, Zentrum für Diagnostik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Bechara Mfarrej
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Francis Huber
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Johannes Herkel
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany
| | - Yisong Y Wan
- Department of Microbiology and Immunology, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, NC 27599
| | - Enric Esplugues
- Department of Immunobiology, Yale University, School of Medicine, New Haven, CT 06510
| | - Manuela Battaglia
- Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Christian F Krebs
- III. Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany; and
| | - Richard A Flavell
- Department of Immunobiology, Yale University, School of Medicine, New Haven, CT 06510; .,Howard Hughes Medical Institute, Chevy Chase, MD 20815
| | - Samuel Huber
- I.Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg 20246, Germany;
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19
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Morris G, Berk M, Klein H, Walder K, Galecki P, Maes M. Nitrosative Stress, Hypernitrosylation, and Autoimmune Responses to Nitrosylated Proteins: New Pathways in Neuroprogressive Disorders Including Depression and Chronic Fatigue Syndrome. Mol Neurobiol 2016; 54:4271-4291. [PMID: 27339878 DOI: 10.1007/s12035-016-9975-2] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 06/13/2016] [Indexed: 12/30/2022]
Abstract
Nitric oxide plays an indispensable role in modulating cellular signaling and redox pathways. This role is mainly effected by the readily reversible nitrosylation of selective protein cysteine thiols. The reversibility and sophistication of this signaling system is enabled and regulated by a number of enzymes which form part of the thioredoxin, glutathione, and pyridoxine antioxidant systems. Increases in nitric oxide levels initially lead to a defensive increase in the number of nitrosylated proteins in an effort to preserve their function. However, in an environment of chronic oxidative and nitrosative stress (O&NS), nitrosylation of crucial cysteine groups within key enzymes of the thioredoxin, glutathione, and pyridoxine systems leads to their inactivation thereby disabling denitrosylation and transnitrosylation and subsequently a state described as "hypernitrosylation." This state leads to the development of pathology in multiple domains such as the inhibition of enzymes of the electron transport chain, decreased mitochondrial function, and altered conformation of proteins and amino acids leading to loss of immune tolerance and development of autoimmunity. Hypernitrosylation also leads to altered function or inactivation of proteins involved in the regulation of apoptosis, autophagy, proteomic degradation, transcription factor activity, immune-inflammatory pathways, energy production, and neural function and survival. Hypernitrosylation, as a consequence of chronically elevated O&NS and activated immune-inflammatory pathways, can explain many characteristic abnormalities observed in neuroprogressive disease including major depression and chronic fatigue syndrome/myalgic encephalomyelitis. In those disorders, increased bacterial translocation may drive hypernitrosylation and autoimmune responses against nitrosylated proteins.
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Affiliation(s)
- Gerwyn Morris
- Tir Na Nog, Bryn Road seaside 87, Llanelli, SA152LW, Wales, UK
| | - Michael Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, P.O. Box 291, Geelong, 3220, Australia
- Orygen Youth Health Research Centre and the Centre of Youth Mental Health, Poplar Road 35, Parkville, 3052, Australia
- The Florey Institute for Neuroscience and Mental Health, University of Melbourne, Kenneth Myer Building, Royal Parade 30, Parkville, 3052, Australia
- Department of Psychiatry, Royal Melbourne Hospital, University of Melbourne, Level 1 North, Main Block, Parkville, 3052, Australia
| | - Hans Klein
- Department of Psychiatry, University of Groningen, UMCG, Groningen, The Netherlands
| | - Ken Walder
- Metabolic Research Unit, School of Medicine, Deakin University, Waurn Ponds, Australia
| | - Piotr Galecki
- Department of Adult Psychiatry, Medical University of Lodz, Łódź, Poland
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
- Department of Psychiatry, Faculty of Medicine, State University of Londrina, Londrina, Brazil.
- Department of Psychiatry, Medical University Plovdiv, Plovdiv, Bulgaria.
- Revitalis, Waalre, The Netherlands.
- IMPACT Strategic Research Center, Barwon Health, Deakin University, Geelong, VIC, Australia.
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20
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Bollino D, Colunga A, Li B, Aurelian L. ΔPK oncolytic activity includes modulation of the tumour cell milieu. J Gen Virol 2015; 97:496-508. [PMID: 26602205 DOI: 10.1099/jgv.0.000353] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Oncolytic virotherapy is a unique cancer therapeutic that encompasses tumour cell lysis through both virus replication and programmed cell death (PCD) pathways. Nonetheless, clinical efficacy is relatively modest, likely related to the immunosuppressive tumour milieu. Our studies use the herpes simplex virus type 2 (HSV-2)-based oncolytic virus ΔPK that has documented anti-tumour activity associated with virus replication, PCD and cancer stem cell lysis. They are designed to examine whether ΔPK-mediated oncolysis includes the ability to reverse the immunosuppressive tumour microenvironment by altering the balance of cytokines directly secreted by the melanoma cells and to define its mechanism. Here, we show that melanoma cells secreted the immunosuppressive cytokine IL-10, and that secretion was inhibited by ΔPK through virus replication and c-Jun N-terminal kinase/c-Jun activation. ΔPK-induced IL-10 inhibition upregulated surface expression of MHC class I chain-related protein A, the ligand for the activating NKG2D receptor expressed on NK- and cytotoxic T-cells. Concomitantly, ΔPK also upregulated the secretion of inflammatory cytokines TNF-α, granulocyte macrophage colony-stimulating factor and IL-1β through autophagy-mediated activation of Toll-like receptor 2 pathways and pyroptosis, and it inhibited the expression of the negative immune checkpoint regulator cytotoxic T-lymphocyte antigen 4. Pharmacologic inhibition of these processes significantly reduces the oncolytic activity of ΔPK.
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Affiliation(s)
- Dominique Bollino
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Aric Colunga
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Baiquan Li
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Laure Aurelian
- Department of Pharmacology, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Riquelme SA, Pogu J, Anegon I, Bueno SM, Kalergis AM. Carbon monoxide impairs mitochondria-dependent endosomal maturation and antigen presentation in dendritic cells. Eur J Immunol 2015; 45:3269-88. [DOI: 10.1002/eji.201545671] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 08/18/2015] [Accepted: 09/24/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Sebastián A. Riquelme
- Millennium Institute on Immunology and Immunotherapy; Departamento de Genética Molecular y Microbiología; Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile; Santiago Chile
- INSERM; UMR 1064; CHU Nantes; ITUN; Université de Nantes; Faculté de Médecine; Nantes France
| | - Julien Pogu
- INSERM; UMR 1064; CHU Nantes; ITUN; Université de Nantes; Faculté de Médecine; Nantes France
| | - Ignacio Anegon
- INSERM; UMR 1064; CHU Nantes; ITUN; Université de Nantes; Faculté de Médecine; Nantes France
| | - Susan M. Bueno
- Millennium Institute on Immunology and Immunotherapy; Departamento de Genética Molecular y Microbiología; Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile; Santiago Chile
- INSERM; UMR 1064; CHU Nantes; ITUN; Université de Nantes; Faculté de Médecine; Nantes France
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy; Departamento de Genética Molecular y Microbiología; Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile; Santiago Chile
- INSERM; UMR 1064; CHU Nantes; ITUN; Université de Nantes; Faculté de Médecine; Nantes France
- Departamento de Inmunología Clínica y Reumatología; Facultad de Medicina, Pontificia Universidad Católica de Chile; Santiago Chile
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Leishmania infantum amastigotes trigger a subpopulation of human B cells with an immunoregulatory phenotype. PLoS Negl Trop Dis 2015; 9:e0003543. [PMID: 25710789 PMCID: PMC4339978 DOI: 10.1371/journal.pntd.0003543] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 01/16/2015] [Indexed: 01/14/2023] Open
Abstract
Visceral leishmaniasis is caused by the protozoan parasites Leishmania infantum and Leishmania donovani. This infection is characterized by an uncontrolled parasitization of internal organs which, when left untreated, leads to death. Disease progression is linked with the type of immune response generated and a strong correlation was found between disease progression and serum levels of the immunosuppressive cytokine IL-10. Other studies have suggested a role for B cells in the pathology of this parasitic infection and the recent identification of a B-cell population in humans with regulatory functions, which secretes large amounts of IL-10 following activation, have sparked our interest in the context of visceral leishmaniasis. We report here that incubation of human B cells with Leishmania infantum amastigotes resulted in upregulation of multiple cell surface activation markers and a dose-dependent secretion of IL-10. Conditioned media from B cells incubated with Leishmania infantum amastigotes were shown to strongly inhibit CD4+ T-cell activation, proliferation and function (i.e. as monitored by TNF and IFNγ secretion). Blockade of IL-10 activity using a soluble IL-10 receptor restored only partially TNF and IFNγ production to control levels. The parasite-mediated IL-10 secretion was shown to rely on the activity of Syk, phosphatidylinositol-3 kinase and p38, as well as to require intracellular calcium mobilization. Cell sorting experiments allowed us to identify the IL-10-secreting B-cell subset (i.e. CD19+CD24+CD27-). In summary, exposure of human B cells to Leishmania infantum amastigotes triggers B cells with regulatory activities mediated in part by IL-10, which could favor parasite dissemination in the organism. Leishmaniasis is an infection caused by protozoan parasites of the genus Leishmania and is a significant neglected tropical disease, with 350 million people in 98 countries at risk of developing one of the forms of the disease. Visceral leishmaniasis is characterized by an uncontrolled parasitization of internal organs, which leads to death when left untreated. Disease progression is linked with the type of immune response generated and a strong correlation was found between disease progression and serum levels of the immunosuppressive cytokine IL-10. We demonstrate that a contact between human B cells with Leishmania infantum amastigotes resulted in upregulation of multiple cell surface activation markers and a dose-dependent secretion of IL-10. Conditioned media from B cells incubated with Leishmania infantum amastigotes were shown to strongly inhibit CD4+ T-cell activation, proliferation and function (i.e. TNF and IFNγ production). Blockade of IL-10 activity using a soluble IL-10 receptor restored to some degree TNF and IFNγ secretion. Cell sorting experiments allowed us to identify a major IL-10-secreting B cell subset characterized as CD24+ and CD27-. Exposure of human B cells to Leishmania infantum amastigotes thus triggers B cells with regulatory activities mediated in part by IL-10, which could promote parasite dissemination in the organism.
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Farhangmehr F, Maurya MR, Tartakovsky DM, Subramaniam S. Information theoretic approach to complex biological network reconstruction: application to cytokine release in RAW 264.7 macrophages. BMC SYSTEMS BIOLOGY 2014; 8:77. [PMID: 24964861 PMCID: PMC4094931 DOI: 10.1186/1752-0509-8-77] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 06/04/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND High-throughput methods for biological measurements generate vast amounts of quantitative data, which necessitate the development of advanced approaches to data analysis to help understand the underlying mechanisms and networks. Reconstruction of biological networks from measured data of different components is a significant challenge in systems biology. RESULTS We use an information theoretic approach to reconstruct phosphoprotein-cytokine networks in RAW 264.7 macrophage cells. Cytokines are secreted upon activation of a wide range of regulatory signals transduced by the phosphoprotein network. Identifying these components can help identify regulatory modules responsible for the inflammatory phenotype. The information theoretic approach is based on estimation of mutual information of interactions by using kernel density estimators. Mutual information provides a measure of statistical dependencies between interacting components. Using the topology of the network derived, we develop a data-driven parsimonious input-output model of the phosphoprotein-cytokine network. CONCLUSIONS We demonstrate the applicability of our information theoretic approach to reconstruction of biological networks. For the phosphoprotein-cytokine network, this approach not only captures most of the known signaling components involved in cytokine release but also predicts new signaling components involved in the release of cytokines. The results of this study are important for gaining a clear understanding of macrophage activation during the inflammation process.
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Affiliation(s)
| | | | | | - Shankar Subramaniam
- Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, 92093-0412 La Jolla, CA, USA.
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Sahlberg AS, Ruuska M, Granfors K, Penttinen MA. Altered regulation of ELAVL1/HuR in HLA-B27-expressing U937 monocytic cells. PLoS One 2013; 8:e70377. [PMID: 23894643 PMCID: PMC3718773 DOI: 10.1371/journal.pone.0070377] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 06/19/2013] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To investigate the role of HLA-B27 expression in the regulation of RNA binding protein (RBP) Embryonic Lethal Abnormal Vision (ELAV) L1/Human antigen R (HuR) expression in Salmonella-infected or LPS-stimulated human monocytic cells, since HuR is a critical regulator of the post-transcriptional fate of many genes (e.g. TNFα) important in inflammatory response. METHODS U937 monocytic cells were stably transfected with pSV2neo resistant vector (mock), wild type HLA-B27, or mutated HLA-B27 with amino acid substitutions in the B pocket. Cells were differentiated, infected with Salmonella enteritidis or stimulated with lipopolysaccharide. The expression levels of HuR protein and cleavage products (CP1 and CP2) were detected by Western blotting and flow cytometry. Specific inhibitors were used to study the role of PKR and p38 in HuR expression and generation of CPs. TNFα and IL-10 secretion after p38 and PKR inhibition were measured by ELISA. RESULTS Full length HuR is overexpressed and HuR cleavage is disturbed in U937 monocytic cells expressing HLA-B27 heavy chains (HC). Increased full length HuR expression, disturbed cleavage and reduced dependence on PKR after infection correlate with the expression of glutamic acid 45 in the B pocket that is linked to the misfolding of HLA-B27. CONCLUSION Results show that the expression of HLA-B27 HCs modulates the intracellular environment of U937 monocyte/macrophages by altering HuR regulation. This phenomenon is at least partly dependent on the misfolding feature of the B27 molecule. Since HuR is an important regulator of multiple genes involved in inflammatory response observations offer an explanation how HLA-B27 may modulate inflammatory response.
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Affiliation(s)
- Anna S Sahlberg
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland.
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Du Y, Yan L, Wang J, Zhan W, Song K, Han X, Li X, Cao J, Liu H. β1-Adrenoceptor autoantibodies from DCM patients enhance the proliferation of T lymphocytes through the β1-AR/cAMP/PKA and p38 MAPK pathways. PLoS One 2012; 7:e52911. [PMID: 23300817 PMCID: PMC3534136 DOI: 10.1371/journal.pone.0052911] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 11/21/2012] [Indexed: 11/21/2022] Open
Abstract
Background Autoantibodies against the second extracellular loop of the β1-adrenergic receptor (β1-AA) not only contribute to increased susceptibility to heart failure, but also play a causative role in myocardial remodeling through their sympathomimetic-like effects that are induced upon binding to the β1-adrenergic receptor. However, their role in the function of T lymphocytes has never been previously investigated. Our present study was designed to determine whether β1-AA isolated from the sera of dilated cardiomyopathy (DCM) patients caused the proliferation of T cells and the secretion of cytokines. Methods Blood samples were collected from 95 DCM patients as well as 95 healthy subjects, and β1-AA was detected using ELISA. The CD3+T lymphocytes were selected separately through flow cytometry and the effect of β1-AA on T lymphocyte proliferation was examined by CCK-8 kits and CFSE assay. Western blotting was used to analyze the expressions of phospho-VASP and phospho-p38 MAPK. Results β1-AA enhanced the proliferation of T lymphocytes. This effect could be blocked by the selective β1-adrenergic receptor antagonist metoprolol, PKA inhibitor H89, and p38 MAPK inhibitor SB203580. Furthermore, the expression of the phosphorylated forms of phospho-VASP and phospho-p38 MAPK were markedly increased in the presence of β1-AA. β1-AA also inhibited the secretion of interferon-γ (IFN-γ) while promoting an increase in interleukin-4 (IL-4) levels. Conclusions These results demonstrate that β1-AA isolated from DCM patients binds to β1-AR on the surface of T cells, causing changes in T-cell proliferation and secretion through the β1-AR/cAMP/PKA and p38 MAPK pathways.
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Affiliation(s)
- Yunhui Du
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Department of Marine Bioengineering, Marine College, Shandong University, Weihai, Shandong, China
| | - Li Yan
- Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jin Wang
- Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Wenzhang Zhan
- Department of Internal Medicine, General Hospital of Tonghua Mining Group CO. LTD, Baishan, Jilin, China
| | - Kai Song
- Department of Internal Medicine, A Peace Hospital Attached to Changzhi Medical College, Changzhi, Shanxi, China
| | - Xue Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xiao Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jimin Cao
- Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Peking Union Medical College, Beijing, China
| | - Huirong Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- The Key Laboratory of Remodeling-related Cardiovascular Diseases, Capital Medical University, Ministry of Education, Beijing, China
- * E-mail:
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Chen DWC, Krstic-Demonacos M, Schwartz JM. Modeling the Mechanism of GR/c-Jun/Erg Crosstalk in Apoptosis of Acute Lymphoblastic Leukemia. Front Physiol 2012. [PMID: 23181019 PMCID: PMC3500877 DOI: 10.3389/fphys.2012.00410] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) is one of the most common forms of malignancy that occurs in lymphoid progenitor cells, particularly in children. Synthetic steroid hormones glucocorticoids (GCs) are widely used as part of the ALL treatment regimens due to their apoptotic function, but their use also brings about various side effects and drug resistance. The identification of the molecular differences between the GCs responsive and resistant cells therefore are essential to decipher such complexity and can be used to improve therapy. However, the emerging picture is complicated as the activities of genes and proteins involved are controlled by multiple factors. By adopting the systems biology framework to address this issue, we here integrated the available knowledge together with experimental data by building a series of mathematical models. This rationale enabled us to unravel molecular interactions involving c-Jun in GC induced apoptosis and identify Ets-related gene (Erg) as potential biomarker of GC resistance. The results revealed an alternative possible mechanism where c-Jun may be an indirect GR target that is controlled via an upstream repressor protein. The models also highlight the importance of Erg for GR function, particularly in GC sensitive C7 cells where Erg directly regulates GR in agreement with our previous experimental results. Our models describe potential GR-controlled molecular mechanisms of c-Jun/Bim and Erg regulation. We also demonstrate the importance of using a systematic approach to translate human disease processes into computational models in order to derive information-driven new hypotheses.
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Affiliation(s)
- Daphne Wei-Chen Chen
- Faculty of Life Sciences, University of Manchester Manchester, UK ; Faculty of Life Sciences, Manchester Institute of Biotechnology, University of Manchester Manchester, UK
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Lajevic MD, Suleiman S, Cohen RL, Chambers DA. Activation of p38 mitogen-activated protein kinase by norepinephrine in T-lineage cells. Immunology 2010; 132:197-208. [PMID: 21039464 DOI: 10.1111/j.1365-2567.2010.03354.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The catecholamine norepinephrine (NE) stimulates T lymphocytes through a beta-adrenergic receptor (βAR)/adenylyl cyclase (AC)/cyclic AMP (cAMP)/protein kinase A (PKA) pathway, leading to altered cell responsiveness and apoptosis. p38 Mitogen-activated protein kinase (MAPK), a major intracellular signalling mediator for cellular and environmental stressors, is involved in the production of immune modulators and in the regulation of T-cell development, survival and death. In these studies we investigated the relationship among NE signalling, p38 MAPK activity and T-cell death. We showed that NE stimulation of BALB/c mouse thymocytes and S49 thymoma cells selectively increases the dual phosphorylation and activity of p38α MAPK. p38 MAPK activation involves the βAR, Gs protein, AC, cAMP and PKA, as determined through the use of a βAR antagonist, activators of AC and cAMP, and S49 clonal mutants deficient in Gs and PKA. Dual phosphorylation of p38 MAPK is also dependent on its own catalytic activity. Inhibition of p38 MAPK activity revealed its involvement in cAMP-mediated activating transcription factor-2 (ATF-2) phosphorylation, Fas ligand messenger RNA (mRNA) up-regulation, and cell death. These results identify a mechanism through which NE stimulation of the βAR/Gs/PKA pathway activates p38 MAPK, which can be potentiated by autophosphorylation, and leads to changes in T-cell dynamics, in part through the regulation of Fas ligand mRNA expression.
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Affiliation(s)
- Melissa D Lajevic
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL 60612, USA
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Gschwandtner M, Schäkel K, Werfel T, Gutzmer R. Histamine H(4) receptor activation on human slan-dendritic cells down-regulates their pro-inflammatory capacity. Immunology 2010; 132:49-56. [PMID: 20722760 DOI: 10.1111/j.1365-2567.2010.03336.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
6-Sulpho LacNAc dendritic cells (slanDC) are a major population of human blood DC that are highly pro-inflammatory, as characterized by their outstanding capacity to produce tumour necrosis factor-α and interleukin-12 (IL-12) and to prime antigen-specific T-cell responses. SlanDC were found to be present in inflamed tissue such as atopic dermatitis, where high levels of histamine are also present. As histamine is an important regulator of allergic inflammation we investigated the role of histamine receptors, particularly the most recently identified histamine H(4) receptor (H(4) R), in modulating the pro-inflammatory function of slanDC. The expression of H(4) R was evaluated by real-time PCR and flow cytometry. Cytokine production in response to H(4) R stimulation was assessed by intracellular flow cytometric staining and enzyme-linked immunosorbent assay. We show that slanDC express the H(1) R, H(2) R and H(4) R on mRNA and the H(4) R on protein level. No differences were observed in basal H(4) R expression in patients with atopic dermatitis and psoriasis, but in atopic dermatitis patients the H(4) R was up-regulated by interferon-γ. When stimulated with lipopolysaccharide in the presence of histamine, slanDC produced substantially lower levels of the pro-inflammatory cytokines tumour necrosis factor-α and IL-12, mediated solely via the H(4) R and via the combined action of H(2) R and H(4) R, respectively. In contrast, the production of IL-10 was not affected by histamine receptor activation on slanDC. The slanDC express the H(4) R and its stimulation leads to reduced pro-inflammatory capacity of slanDC. Hence, H(4) R agonists might have therapeutic potential to down-regulate immune reactions, e.g. in allergic inflammatory skin diseases.
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Affiliation(s)
- Maria Gschwandtner
- Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany.
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