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Pradhan P, Vijayan V, Liu B, Martinez-Delgado B, Matamala N, Nikolin C, Greite R, DeLuca DS, Janciauskiene S, Motterlini R, Foresti R, Immenschuh S. Distinct metabolic responses to heme in inflammatory human and mouse macrophages - Role of nitric oxide. Redox Biol 2024; 73:103191. [PMID: 38762951 PMCID: PMC11130737 DOI: 10.1016/j.redox.2024.103191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/11/2024] [Accepted: 05/11/2024] [Indexed: 05/21/2024] Open
Abstract
Activation of inflammation is tightly associated with metabolic reprogramming in macrophages. The iron-containing tetrapyrrole heme can induce pro-oxidant and pro-inflammatory effects in murine macrophages, but has been associated with polarization towards an anti-inflammatory phenotype in human macrophages. In the current study, we compared the regulatory responses to heme and the prototypical Toll-like receptor (TLR)4 ligand lipopolysaccharide (LPS) in human and mouse macrophages with a particular focus on alterations of cellular bioenergetics. In human macrophages, bulk RNA-sequencing analysis indicated that heme led to an anti-inflammatory transcriptional profile, whereas LPS induced a classical pro-inflammatory gene response. Co-stimulation of heme with LPS caused opposing regulatory patterns of inflammatory activation and cellular bioenergetics in human and mouse macrophages. Specifically, in LPS-stimulated murine, but not human macrophages, heme led to a marked suppression of oxidative phosphorylation and an up-regulation of glycolysis. The species-specific alterations in cellular bioenergetics and inflammatory responses to heme were critically dependent on the availability of nitric oxide (NO) that is generated in inflammatory mouse, but not human macrophages. Accordingly, studies with an inducible nitric oxide synthase (iNOS) inhibitor in mouse, and a pharmacological NO donor in human macrophages, reveal that NO is responsible for the opposing effects of heme in these cells. Taken together, the current findings indicate that NO is critical for the immunomodulatory role of heme in macrophages.
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Affiliation(s)
- Pooja Pradhan
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Vijith Vijayan
- Department of Pediatrics, Stanford University, Stanford, USA
| | - Bin Liu
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Beatriz Martinez-Delgado
- Molecular Genetics and Genetic Diagnostic Units, Institute of Rare Diseases Research (IIER), Spanish National Institute of Health Carlos III (ISCIII), 28220, Madrid, Spain
| | - Nerea Matamala
- Molecular Genetics and Genetic Diagnostic Units, Institute of Rare Diseases Research (IIER), Spanish National Institute of Health Carlos III (ISCIII), 28220, Madrid, Spain
| | - Christoph Nikolin
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
| | - Robert Greite
- Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
| | - David S. DeLuca
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Sabina Janciauskiene
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | | | - Roberta Foresti
- University Paris-Est Créteil, INSERM, IMRB, F-94010, Créteil, France
| | - Stephan Immenschuh
- Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Hannover, Germany
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Salti T, Braunstein I, Haimovich Y, Ziv T, Benhar M. Widespread S-persulfidation in activated macrophages as a protective mechanism against oxidative-inflammatory stress. Redox Biol 2024; 72:103125. [PMID: 38574432 PMCID: PMC11000178 DOI: 10.1016/j.redox.2024.103125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/10/2024] [Accepted: 03/12/2024] [Indexed: 04/06/2024] Open
Abstract
Acute inflammatory responses often involve the production of reactive oxygen and nitrogen species by innate immune cells, particularly macrophages. How activated macrophages protect themselves in the face of oxidative-inflammatory stress remains a long-standing question. Recent evidence implicates reactive sulfur species (RSS) in inflammatory responses; however, how endogenous RSS affect macrophage function and response to oxidative and inflammatory insults remains poorly understood. In this study, we investigated the endogenous pathways of RSS biogenesis and clearance in macrophages, with a particular focus on exploring how hydrogen sulfide (H2S)-mediated S-persulfidation influences macrophage responses to oxidative-inflammatory stress. We show that classical activation of mouse or human macrophages using lipopolysaccharide and interferon-γ (LPS/IFN-γ) triggers substantial production of H2S/RSS, leading to widespread protein persulfidation. Biochemical and proteomic analyses revealed that this surge in cellular S-persulfidation engaged ∼2% of total thiols and modified over 800 functionally diverse proteins. S-persulfidation was found to be largely dependent on the cystine importer xCT and the H2S-generating enzyme cystathionine γ-lyase and was independent of changes in the global proteome. We further investigated the role of the sulfide-oxidizing enzyme sulfide quinone oxidoreductase (SQOR), and found that it acts as a negative regulator of S-persulfidation. Elevated S-persulfidation following LPS/IFN-γ stimulation or SQOR inhibition was associated with increased resistance to oxidative stress. Upregulation of persulfides also inhibited the activation of the macrophage NLRP3 inflammasome and provided protection against inflammatory cell death. Collectively, our findings shed light on the metabolism and effects of RSS in macrophages and highlight the crucial role of persulfides in enabling macrophages to withstand and alleviate oxidative-inflammatory stress.
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Affiliation(s)
- Talal Salti
- Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Ilana Braunstein
- Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Yael Haimovich
- Smoler Proteomics Center and Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Tamar Ziv
- Smoler Proteomics Center and Faculty of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Moran Benhar
- Department of Biochemistry, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
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Takeuchi C, Yamashita S, Liu YY, Takeshima H, Sasaki A, Fukuda M, Hashimoto T, Naka T, Ishizu K, Sekine S, Yoshikawa T, Hamada A, Yamamichi N, Fujishiro M, Ushijima T. Precancerous nature of intestinal metaplasia with increased chance of conversion and accelerated DNA methylation. Gut 2024; 73:255-267. [PMID: 37751933 DOI: 10.1136/gutjnl-2023-329492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 08/31/2023] [Indexed: 09/28/2023]
Abstract
OBJECTIVE The presence of intestinal metaplasia (IM) is a risk factor for gastric cancer. However, it is still controversial whether IM itself is precancerous or paracancerous. Here, we aimed to explore the precancerous nature of IM by analysing epigenetic alterations. DESIGN Genome-wide DNA methylation analysis was conducted by EPIC BeadArray using IM crypts isolated by Alcian blue staining. Chromatin immunoprecipitation sequencing for H3K27ac and single-cell assay for transposase-accessible chromatin by sequencing were conducted using IM mucosa. NOS2 was induced using Tet-on gene expression system in normal cells. RESULTS IM crypts had a methylation profile unique from non-IM crypts, showing extensive DNA hypermethylation in promoter CpG islands, including those of tumour-suppressor genes. Also, the IM-specific methylation profile, namely epigenetic footprint, was present in a fraction of gastric cancers with a higher frequency than expected, and suggested to be associated with good overall survival. IM organoids had remarkably high NOS2 expression, and NOS2 induction in normal cells led to accelerated induction of aberrant DNA methylation, namely epigenetic instability, by increasing DNA methyltransferase activity. IM mucosa showed dynamic enhancer reprogramming, including the regions involved in higher NOS2 expression. NOS2 had open chromatin in IM cells but not in gastric cells, and IM cells had frequent closed chromatin of tumour-suppressor genes, indicating their methylation-silencing. NOS2 expression in IM-derived organoids was upregulated by interleukin-17A, a cytokine secreted by extracellular bacterial infection. CONCLUSIONS IM cells were considered to have a precancerous nature potentially with an increased chance of converting into cancer cells, and an accelerated DNA methylation induction due to abnormal NOS2 expression.
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Affiliation(s)
- Chihiro Takeuchi
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Department of Epigenomics, Institute for Advanced Life Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Satoshi Yamashita
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Department of Biotechnology, Maebashi Institute of Technology, Maebashi, Gunma, Japan
| | - Yu-Yu Liu
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Department of Epigenomics, Institute for Advanced Life Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
| | - Hideyuki Takeshima
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Department of Epigenomics, Institute for Advanced Life Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
| | - Akiko Sasaki
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Gastroenterology Medicine Center, Shonan Kamakura General Hospital, Kamakura, Kanagawa, Japan
| | - Masahide Fukuda
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Department of Gastroenterology, Faculty of Medicine, Oita University, Oita, Oita, Japan
| | - Taiki Hashimoto
- Department of Diagnostic Pathology, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | - Tomoaki Naka
- Department of Diagnostic Pathology, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | - Kenichi Ishizu
- Department of Gastric Surgery, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | - Shigeki Sekine
- Department of Diagnostic Pathology, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | - Takaki Yoshikawa
- Department of Gastric Surgery, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | - Akinobu Hamada
- Division of Molecular Pharmacology, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
| | - Nobutake Yamamichi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Center for Epidemiology and Preventive Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Toshikazu Ushijima
- Division of Epigenomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
- Department of Epigenomics, Institute for Advanced Life Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
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Di Giorgio E, Cortolezzis Y, Gualandi N, Agostini F, Rapozzi V, Xodo LE. NRF2 interacts with distal enhancer and inhibits nitric oxide synthase 2 expression in KRAS-driven pancreatic cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119606. [PMID: 37852325 DOI: 10.1016/j.bbamcr.2023.119606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
Nitric oxide is a pleiotropic free radical produced by three nitric oxide synthases (NOS1-3), of which inducible NOS2 is involved in tumor initiation and progression. In this study, RNA-seq, ChIP-seq and qRT-PCR experiments combined with bioinformatic analyses showed that NRF2 is a repressor of NOS2 gene by maintaining a distal enhancer located 22 kb downstream of TSS in an inactive state. Deletion of NRF2 leads to activation of the enhancer, which exerts a pioneering function before it is fully activated. Specifically, NRF2 controls the expression of NOS2 in response to intracellular oxidative stress and extracellular oxygen pressure. We found that abrogation of NOS2 expression by siRNAs partially reduced the ability of WT Panc-1 cells to form 3D spheroids, but strongly reduced the formation of 3D spheroids by NRF2-depleted Panc-1 cells. Mechanistically, this effect correlates with the finding that NOS2 and nitric oxide stimulate epithelial-to-mesenchymal transition in NRF2-depleted Panc-1 and MIA PaCa-2 cells. We also found that knockdown of NOS2 leads to blockade of 3D matrigel invasion of NRF2-depleted PDAC cells, demonstrating that a short-circuit in the reciprocal regulation of NOS2 and NRF2 attenuates the malignancy of PDAC cells. In summary, we show for the first time that: (i) NRF2 is a suppressor of NOS2 in pancreatic cancer cells; (ii) NRF2 binds to and inactivates an enhancer located 22 kb downstream of TSS of the NOS2 gene; (iii) activation of NOS2 requires suppression of NRF2; (iv) NOS2 is required for NRF2-depleted Panc-1 cells to maintain their malignancy and invasiveness.
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Affiliation(s)
- Eros Di Giorgio
- Department of Medicine, Laboratory of Biochemistry, P.le Kolbe 4, 33100 Udine, Italy.
| | - Ylenia Cortolezzis
- Department of Medicine, Laboratory of Biochemistry, P.le Kolbe 4, 33100 Udine, Italy
| | - Nicolò Gualandi
- Department of Medicine, Laboratory of Biochemistry, P.le Kolbe 4, 33100 Udine, Italy
| | - Francesca Agostini
- Department of Medicine, Laboratory of Biochemistry, P.le Kolbe 4, 33100 Udine, Italy
| | - Valentina Rapozzi
- Department of Medicine, Laboratory of Biochemistry, P.le Kolbe 4, 33100 Udine, Italy
| | - Luigi E Xodo
- Department of Medicine, Laboratory of Biochemistry, P.le Kolbe 4, 33100 Udine, Italy.
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Barilli A, Recchia Luciani G, Visigalli R, Sala R, Soli M, Dall’Asta V, Rotoli BM. Cytokine-Induced iNOS in A549 Alveolar Epithelial Cells: A Potential Role in COVID-19 Lung Pathology. Biomedicines 2023; 11:2699. [PMID: 37893073 PMCID: PMC10603955 DOI: 10.3390/biomedicines11102699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND In COVID-19, an uncontrolled inflammatory response might worsen lung damage, leading to acute respiratory distress syndrome (ARDS). Recent evidence points to the induction of inducible nitric oxide synthase (NOS2/iNOS) as a component of inflammatory response since NOS2 is upregulated in critical COVID-19 patients. Here, we explore the mechanisms underlying the modulation of iNOS expression in human alveolar cells. METHODS A549 WT and IRF1 KO cells were exposed to a conditioned medium of macrophages treated with SARS-CoV-2 spike S1. Additionally, the effect of IFNγ, IL-1β, IL-6, and TNFα, either alone or combined, was addressed. iNOS expression was assessed with RT-qPCR and Western blot. The effect of baricitinib and CAPE, inhibitors of JAK/STAT and NF-kB, respectively, was also investigated. RESULTS Treatment with a conditioned medium caused a marked induction of iNOS in A549 WT and a weak stimulation in IRF1 KO. IFNγ induced NOS2 and synergistically cooperated with IL-1β and TNFα. The inhibitory pattern of baricitinb and CAPE indicates that cytokines activate both IRF1 and NF-κB through the JAK/STAT1 pathway. CONCLUSIONS Cytokines secreted by S1-activated macrophages markedly induce iNOS, whose expression is suppressed by baricitinib. Our findings sustain the therapeutic efficacy of this drug in COVID-19 since, besides limiting the cytokine storm, it also prevents NOS2 induction.
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Affiliation(s)
- Amelia Barilli
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Giulia Recchia Luciani
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Rossana Visigalli
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Roberto Sala
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Maurizio Soli
- Immunohematology and Transfusion Medicine, University Hospital of Parma, 43125 Parma, Italy
| | - Valeria Dall’Asta
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
| | - Bianca Maria Rotoli
- Laboratory of General Pathology, Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy; (A.B.)
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Hu L, Ter Hofstede B, Sharma D, Zhao F, Walsh AJ. Comparison of phasor analysis and biexponential decay curve fitting of autofluorescence lifetime imaging data for machine learning prediction of cellular phenotypes. FRONTIERS IN BIOINFORMATICS 2023; 3:1210157. [PMID: 37455808 PMCID: PMC10342207 DOI: 10.3389/fbinf.2023.1210157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction: Autofluorescence imaging of the coenzymes reduced nicotinamide (phosphate) dinucleotide (NAD(P)H) and oxidized flavin adenine dinucleotide (FAD) provides a label-free method to detect cellular metabolism and phenotypes. Time-domain fluorescence lifetime data can be analyzed by exponential decay fitting to extract fluorescence lifetimes or by a fit-free phasor transformation to compute phasor coordinates. Methods: Here, fluorescence lifetime data analysis by biexponential decay curve fitting is compared with phasor coordinate analysis as input data to machine learning models to predict cell phenotypes. Glycolysis and oxidative phosphorylation of MCF7 breast cancer cells were chemically inhibited with 2-deoxy-d-glucose and sodium cyanide, respectively; and fluorescence lifetime images of NAD(P)H and FAD were obtained using a multiphoton microscope. Results: Machine learning algorithms built from either the extracted lifetime values or phasor coordinates predict MCF7 metabolism with a high accuracy (∼88%). Similarly, fluorescence lifetime images of M0, M1, and M2 macrophages were acquired and analyzed by decay fitting and phasor analysis. Machine learning models trained with features from curve fitting discriminate different macrophage phenotypes with improved performance over models trained using only phasor coordinates. Discussion: Altogether, the results demonstrate that both curve fitting and phasor analysis of autofluorescence lifetime images can be used in machine learning models for classification of cell phenotype from the lifetime data.
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Affiliation(s)
| | | | | | | | - Alex J. Walsh
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, United States
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Reddy TP, Glynn SA, Billiar TR, Wink DA, Chang JC. Targeting Nitric Oxide: Say NO to Metastasis. Clin Cancer Res 2023; 29:1855-1868. [PMID: 36520504 PMCID: PMC10183809 DOI: 10.1158/1078-0432.ccr-22-2791] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/24/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022]
Abstract
Utilizing targeted therapies capable of reducing cancer metastasis, targeting chemoresistant and self-renewing cancer stem cells, and augmenting the efficacy of systemic chemo/radiotherapies is vital to minimize cancer-associated mortality. Targeting nitric oxide synthase (NOS), a protein within the tumor microenvironment, has gained interest as a promising therapeutic strategy to reduce metastatic capacity and augment the efficacy of chemo/radiotherapies in various solid malignancies. Our review highlights the influence of nitric oxide (NO) in tumor progression and cancer metastasis, as well as promising preclinical studies that evaluated NOS inhibitors as anticancer therapies. Lastly, we highlight the prospects and outstanding challenges of using NOS inhibitors in the clinical setting.
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Affiliation(s)
- Tejaswini P. Reddy
- Texas A&M University Health Science Center, Bryan, Texas
- Houston Methodist Research Institute, Houston, Texas
- Houston Methodist Neal Cancer Center, Houston, Texas
| | - Sharon A. Glynn
- Prostate Cancer Institute, National University of Ireland Galway, Galway, Ireland
| | - Timothy R. Billiar
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - David A. Wink
- Cancer Innovation Laboratory, Center for Cancer Research, National Cancer Institute, National Institute of Health, Frederick, Maryland
| | - Jenny C. Chang
- Houston Methodist Research Institute, Houston, Texas
- Houston Methodist Neal Cancer Center, Houston, Texas
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Rynikova M, Adamkova P, Hradicka P, Stofilova J, Harvanova D, Matejova J, Demeckova V. Transcriptomic Analysis of Macrophage Polarization Protocols: Vitamin D 3 or IL-4 and IL-13 Do Not Polarize THP-1 Monocytes into Reliable M2 Macrophages. Biomedicines 2023; 11:biomedicines11020608. [PMID: 36831144 PMCID: PMC9953291 DOI: 10.3390/biomedicines11020608] [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: 02/09/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Two main types of macrophages (Mφ) include inflammatory (M1) and anti-inflammatory (M2) macrophages. These cells can be obtained in vitro by polarization of monocytic cell lines using various stimuli. Since there is currently no consensus on the best method for the acquisition of reliable M1 and M2 macrophages from the THP-1 cell line, we decided to compare three different polarization protocols at the transcriptomic level. Whole transcriptomes of Mφ polarized according to the chosen protocols were analyzed using RNA-seq. Differential expression of genes and functional enrichment for gene ontology terms were assessed. Compared with other protocols, M1 macrophages polarized using PMA (61.3 ng/mL) and IFN-γ along with LPS had the highest expression of M1-associated regulatory genes and genes for M1 cytokines and chemokines. According to the GO enrichment analysis, genes involved in defensive and inflammatory processes were differentially expressed in these Mφ. However, all three chosen protocols which use Vit D3, IL-13/IL-4, and IL-4, respectively, failed to promote the polarization of macrophages with a reliable M2 phenotype. Therefore, optimization or development of a new M2 polarization protocol is needed to achieve macrophages with a reliable anti-inflammatory phenotype.
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Affiliation(s)
- Maria Rynikova
- Department of Animal Physiology, Faculty of Science, Pavol Jozef Safarik University in Kosice, 041 54 Kosice, Slovakia
| | - Petra Adamkova
- Department of Animal Physiology, Faculty of Science, Pavol Jozef Safarik University in Kosice, 041 54 Kosice, Slovakia
| | - Petra Hradicka
- Department of Animal Physiology, Faculty of Science, Pavol Jozef Safarik University in Kosice, 041 54 Kosice, Slovakia
- Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, 0318 Oslo, Norway
| | - Jana Stofilova
- Center of Clinical and Preclinical Research MEDIPARK, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia
| | - Denisa Harvanova
- Associated Tissue Bank, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia
| | - Jana Matejova
- Associated Tissue Bank, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, 040 11 Kosice, Slovakia
| | - Vlasta Demeckova
- Department of Animal Physiology, Faculty of Science, Pavol Jozef Safarik University in Kosice, 041 54 Kosice, Slovakia
- Correspondence:
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Jiang X, Lin Y, Wu Y, Yuan C, Lang X, Chen J, Zhu C, Yang X, Huang Y, Wang H, Wu C. Identification of potential anti-pneumonia pharmacological components of Glycyrrhizae Radix et Rhizoma after the treatment with Gan An He Ji oral liquid. J Pharm Anal 2022; 12:839-851. [PMID: 36605579 PMCID: PMC9805948 DOI: 10.1016/j.jpha.2022.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 01/07/2023] Open
Abstract
Glycyrrhizae Radix et Rhizoma, a traditional Chinese medicine also known as Gan Cao (GC), is frequently included in clinical prescriptions for the treatment of pneumonia. However, the pharmacological components of GC for pneumonia treatment are rarely explored. Gan An He Ji oral liquid (GAHJ) has a simple composition and contains GC liquid extracts and paregoric, and has been used clinically for many years. Therefore, GAHJ was selected as a compound preparation for the study of GC in the treatment of pneumonia. We conducted an in vivo study of patients with pneumonia undergoing GAHJ treatments for three days. Using the intelligent mass spectrometry data-processing technologies to analyze the metabolism of GC in vivo, we obtained 168 related components of GC in humans, consisting of 24 prototype components and 144 metabolites, with 135 compounds screened in plasma and 82 in urine. After analysis of the metabolic transformation relationship and relative exposure, six components (liquiritin, liquiritigenin, glycyrrhizin, glycyrrhetinic acid, daidzin, and formononetin) were selected as potential effective components. The experimental results based on two animal pneumonia models and the inflammatory cell model showed that the mixture of these six components was effective in the treatment of pneumonia and lung injury and could effectively downregulate the level of inducible nitric oxide synthase (iNOS). Interestingly, glycyrrhetinic acid exhibited the strongest inhibition on iNOS and the highest exposure in vivo. The following molecular dynamic simulations indicated a strong bond between glycyrrhetinic acid and iNOS. Thus, the current study provides a pharmaceutical basis for GC and reveals the possible corresponding mechanisms in pneumonia treatment.
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Affiliation(s)
- Xiaojuan Jiang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yihua Lin
- Department of Respiratory and Critical Care Medicine, The Third Clinical Medical College, Fujian Medical University, Fuzhou, 350122, China,Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, 361003, China
| | - Yunlong Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Caixia Yuan
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Xuli Lang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Jiayun Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chunyan Zhu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Xinyi Yang
- Laboratory of Pharmacology/Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Yu Huang
- School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China
| | - Hao Wang
- School of Pharmacy, Minzu University of China, Beijing, 100081, China,Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China,Institute of National Security, Minzu University of China, Beijing, 100081, China,Corresponding author. School of Pharmacy, Minzu University of China, Beijing, 100081, China.
| | - Caisheng Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cell Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China,Corresponding author.
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Strategies of Pathogens to Escape from NO-Based Host Defense. Antioxidants (Basel) 2022; 11:antiox11112176. [DOI: 10.3390/antiox11112176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Nitric oxide (NO) is an essential signaling molecule present in most living organisms including bacteria, fungi, plants, and animals. NO participates in a wide range of biological processes including vasomotor tone, neurotransmission, and immune response. However, NO is highly reactive and can give rise to reactive nitrogen and oxygen species that, in turn, can modify a broad range of biomolecules. Much evidence supports the critical role of NO in the virulence and replication of viruses, bacteria, protozoan, metazoan, and fungi, thus representing a general mechanism of host defense. However, pathogens have developed different mechanisms to elude the host NO and to protect themselves against oxidative and nitrosative stress. Here, the strategies evolved by viruses, bacteria, protozoan, metazoan, and fungi to escape from the NO-based host defense are overviewed.
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11
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Chow L, Soontararak S, Wheat W, Ammons D, Dow S. Canine polarized macrophages express distinct functional and transcriptomic profiles. Front Vet Sci 2022; 9:988981. [PMID: 36387411 PMCID: PMC9663804 DOI: 10.3389/fvets.2022.988981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 09/13/2022] [Indexed: 11/04/2022] Open
Abstract
Macrophage differentiation and function in disease states is highly regulated by the local microenvironment. For example, macrophage exposure to IFN-γ (interferon gamma) initiates the development of inflammatory (M1) macrophages, which acquire anti-tumoral and antimicrobial activity, while exposure to IL-4 (interleukin-4) and IL-13 (interleukin-13) drives an anti-inflammatory (M2) macrophage phenotype, which promotes healing and suppression of inflammatory responses. Previous studies of canine polarized macrophages have identified several surface markers that distinguished GM-CSF (granulocyte macrophage colony stimulating factor), IFN-γ and LPS (lipopolysaccharide) derived M1 macrophages or M2 macrophages; and reported a subset of genes that can be used to differentiate between polarization states. However, the need remains to understand the underlying biological mechanisms governing canine macrophage polarization states. Therefore, in the present study we used transcriptome sequencing, a larger panel of flow cytometry markers, and the addition of antimicrobial functional assays to further characterize canine macrophage polarization. Transcriptome analysis revealed unique, previously unreported signatures and pathways for polarized canine M1 and M2 macrophages. New flow cytometric markers were also identified, along with new characterization of how macrophage polarization impacted antimicrobial functions. Taken together, the findings reported here provide new insights into canine macrophage biology and identify new tools for the evaluation of polarized macrophages in dogs.
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Affiliation(s)
- Lyndah Chow
- Flint Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, CO, United States
| | - Sirikul Soontararak
- Flint Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, CO, United States
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - William Wheat
- Flint Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, CO, United States
| | - Dylan Ammons
- Flint Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, CO, United States
| | - Steven Dow
- Flint Animal Cancer Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Ft. Collins, CO, United States
- *Correspondence: Steven Dow
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12
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Yang R, Gao Y, Li H, Huang W, Tu D, Yang M, Liu X, Hong JS, Gao HM. Posttranslational S-nitrosylation modification regulates HMGB1 secretion and promotes its proinflammatory and neurodegenerative effects. Cell Rep 2022; 40:111330. [PMID: 36103834 PMCID: PMC9531316 DOI: 10.1016/j.celrep.2022.111330] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 06/14/2022] [Accepted: 08/18/2022] [Indexed: 12/03/2022] Open
Abstract
Nuclear protein high-mobility group box 1 (HMGB1) can be actively secreted by activated immune cells and functions as a proinflammatory cytokine. Regulation of HMGB1 secretion is critical for treatment of HMGB1-mediated inflammation and related diseases. This study demonstrates that S-nitrosylation (SNO; the covalent binding of nitric oxide [NO] to cysteine thiols) by inducible nitric oxide synthase (iNOS)-derived NO at Cys106 is essential and sufficient for inflammation-elicited HMGB1 secretion. iNOS deletion or inhibition or Cys106Ser mutation prevents lipopolysaccharide (LPS)- and/or poly(I:C)-elicited HMGB1 secretion. NO donors induce SNO of HMGB1 and reproduce inflammogen-triggered HMGB1 secretion. SNO of HMGB1 promotes its proinflammatory and neurodegenerative effects. Intranigral HMGB1 injection induces chronic microglial activation, dopaminergic neurodegeneration, and locomotor deficits, the key features of Parkinson’s disease (PD), in wild-type, but not Mac1 (CD11b/CD18)-deficient, mice. This study indicates pivotal roles for SNO modification in HMGB1 secretion and HMGB1-Mac1 interaction for inflammatory neurodegeneration, identifying a mechanistic basis for PD development. Regulation of HMGB1 secretion is critical for the treatment of HMGB1-mediated inflammation and related diseases. Yang et al. demonstrate that posttranslational S-nitrosylation modification (the covalent binding of nitric oxide to protein cysteine thiols) regulates HMGB1 secretion and promotes its proinflammatory and neurodegenerative effects, thereby contributing to Parkinson’s disease pathogenesis.
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Affiliation(s)
- Ru Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China
| | - Yun Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China; Laboratory of Neurobiology, National Institutes of Health, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Hui Li
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China
| | - Wei Huang
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China
| | - Dezhen Tu
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China; Laboratory of Neurobiology, National Institutes of Health, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Mengnan Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China
| | - Xingqian Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China
| | - Jau-Shyong Hong
- Laboratory of Neurobiology, National Institutes of Health, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Hui-Ming Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Ministry of Education Key Laboratory of Model Animal for Disease Study, Institute for Brain Sciences, Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu Province 210023, China.
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13
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Sardoiwala MN, Mohanbhai SJ, Kushwaha AC, Dev A, Biswal L, Sharma SS, Choudhury SR, Karmakar S. Melatonin mediated inhibition of EZH2-NOS2 crosstalk attenuates inflammatory bowel disease in preclinical in vitro and in vivo models. Life Sci 2022; 302:120655. [PMID: 35598656 DOI: 10.1016/j.lfs.2022.120655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 11/24/2022]
Abstract
AIMS Inflammatory Bowel Disease is characterised by abdominal pain, diarrhoea, rectal bleeding and weight loss. Sometimes it may leads to severe health complications resulting in death of an individual. Current research efforts to highlight the role of melatonin in regulating EZH2, a master epigenetic regulator and its beneficiary effect in case of IBD management. MATERIAL METHODS Murine macrophages (RAW 264.7) were treated with lipopolysaccharides (LPS) to activate them for generating inflammatory response to investigate efficacy of melatonin in-vitro models. Similarly, for developing in vivo models, Dextran sodium sulphate (36-50 kDa) was used. Evaluations of anti-inflammatory activities were carried out by nitrite assay, western blotting, q-PCR, immunofluorescence, and histological studies. KEY FINDINGS Reduction of epigenetic target, EZH2 by melatonin significantly improves the clinical symptoms of dextran sodium sulphate induced colitis and may be implicated as a potential therapeutic target in IBD management. The present study evaluates the efficacy of melatonin by epigenetic regulation in IBD models. Down regulation of EZH2 by melatonin reduced the chemical induced inflammatory insults in in vitro and in vivo models. Exploration of molecular pathways has revealed interlink of EZH2 and NOS2, a hallmark of inflammation. Molecular mechanistic action of melatonin is attributed to inhibition of the expression and physical interaction of EZH2 and NOS2. SIGNIFICANCE Our study highlights melatonin therapeutic effect via attenuating interaction between EZH2 and NOS2 which is beneficial in managing IBD treatment.
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Affiliation(s)
- Mohammed Nadim Sardoiwala
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Soni Jignesh Mohanbhai
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Avinash Chandra Kushwaha
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Atul Dev
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Liku Biswal
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India
| | - Shyam Sunder Sharma
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, SAS, Nagar, Punjab, 160062, India
| | - Subhasree Roy Choudhury
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India.
| | - Surajit Karmakar
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, SAS Nagar, Punjab 140306, India.
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14
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d-2-Hydroxyglutarate is an anti-inflammatory immunometabolite that accumulates in macrophages after TLR4 activation. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166427. [PMID: 35526742 DOI: 10.1016/j.bbadis.2022.166427] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/13/2022] [Accepted: 04/30/2022] [Indexed: 12/27/2022]
Abstract
Macrophages undergo extensive metabolic rewiring upon activation which assist the cell in roles beyond energy production and synthesis of anabolic building blocks. So-called immunometabolites that accumulate upon immune activation can serve as co-factors for enzymes and can act as signaling molecules to modulate cellular processes. As such, the Krebs-cycle-associated metabolites succinate, itaconate and alpha-ketoglutarate (αKG) have emerged as key regulators of macrophage function. Here, we describe that 2-hydroxyglutarate (2HG), which is structurally similar to αKG and exists as two enantiomers, accumulates during later stages of LPS-induced inflammatory responses in mouse and human macrophages. D-2HG was the most abundant enantiomer in macrophages and its LPS-induced accumulation followed the induction of Hydroxyacid-Oxoacid Transhydrogenase (HOT). HOT interconverts αKG and gamma-hydroxybutyrate into D-2HG and succinic semialdehyde, and we here identified this enzyme as being immune-responsive and regulated during the course of macrophage activation. The buildup of D-2HG may be further explained by reduced expression of D-2HG Dehydrogenase (D2HGDH), which converts D-2HG back into αKG, and showed inverse kinetics with HOT and D-2HG levels. We tested the immunomodulatory effects of D-2HG during LPS-induced inflammatory responses by transcriptomic analyses and functional profiling of D-2HG-pre-treated macrophages in vitro and mice in vivo. Together, these data suggest a role for D-2HG in the negative feedback regulation of inflammatory signaling during late-stage LPS-responses in vitro and as a regulator of local and systemic inflammatory responses in vivo. Finally, we show that D-2HG likely exerts distinct anti-inflammatory effects, which are in part independent of αKG-dependent dioxygenase inhibition. Together, this study reveals an immunometabolic circuit resulting in the accumulation of the immunomodulatory metabolite D-2HG that can inhibit inflammatory macrophage responses.
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15
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Gilbertson SE, Walter HC, Gardner K, Wren SN, Vahedi G, Weinmann AS. Topologically associating domains are disrupted by evolutionary genome rearrangements forming species-specific enhancer connections in mice and humans. Cell Rep 2022; 39:110769. [PMID: 35508135 PMCID: PMC9142060 DOI: 10.1016/j.celrep.2022.110769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 03/08/2022] [Accepted: 04/11/2022] [Indexed: 12/11/2022] Open
Abstract
Distinguishing between conserved and divergent regulatory mechanisms is
essential for translating preclinical research from mice to humans, yet there is
a lack of information about how evolutionary genome rearrangements affect the
regulation of the immune response, a rapidly evolving system. The current model
is topologically associating domains (TADs) are conserved between species,
buffering evolutionary rearrangements and conserving long-range interactions
within a TAD. However, we find that TADs frequently span evolutionary
translocation and inversion breakpoints near genes with species-specific
expression in immune cells, creating unique enhancer-promoter interactions
exclusive to the mouse or human genomes. This includes TADs encompassing
immune-related transcription factors, cytokines, and receptors. For example, we
uncover an evolutionary rearrangement that created a shared LPS-inducible
regulatory module between OASL and P2RX7 in
human macrophages that is absent in mice. Therefore, evolutionary genome
rearrangements disrupt TAD boundaries, enabling sequence-conserved enhancer
elements from divergent genomic locations between species to create unique
regulatory modules. It is currently unclear how evolutionary genome rearrangements affecting
the mouse and human genomes influence the expression of genes important in
immunity. Gilbertson et al. report that evolutionary genome rearrangements
disrupt topologically associating domain boundaries, enabling sequence-conserved
enhancer elements from divergent locations between species to create unique
regulatory modules.
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Affiliation(s)
- Sarah E Gilbertson
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Hannah C Walter
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Katherine Gardner
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Spencer N Wren
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Golnaz Vahedi
- Department of Genetics, Institute of Immunology, Epigenetics Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Amy S Weinmann
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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16
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Drehmer D, Mesquita Luiz JP, Hernandez CAS, Alves-Filho JC, Hussell T, Townsend PA, Moncada S. Nitric oxide favours tumour-promoting inflammation through mitochondria-dependent and -independent actions on macrophages. Redox Biol 2022; 54:102350. [PMID: 35660630 PMCID: PMC9511697 DOI: 10.1016/j.redox.2022.102350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/12/2022] [Accepted: 05/21/2022] [Indexed: 12/22/2022] Open
Abstract
Production of nitric oxide (NO) has been demonstrated in several malignancies, however its role remains not fully understood, specifically in relation to the metabolic and functional implications that it may have on immune cells participating in tumorigenesis. Here, we show that inducible NO synthase (iNOS) is expressed in cancers of the colon and the prostate, mainly by tumour cells, and NO generation is evidenced by widespread nitrotyrosine (NT) staining in tumour tissue. Furthermore, presence of NT is observed in the majority of tumour-associated macrophages (TAMs), despite low iNOS expression by these cells, suggesting that NO from the tumour microenvironment affects TAMs. Indeed, using a co-culture model, we demonstrate that NO produced by colon and prostate cancer cells is sufficient to induce NT formation in neighbouring macrophages. Moreover, exposure to exogenous NO promotes mitochondria-dependent and -independent changes in macrophages, which orientate their polarity towards an enhanced pro-inflammatory phenotype, whilst decreasing antigen-presenting function and wound healing capacity. Abrogating endogenous NO generation in murine macrophages, on the other hand, decreases their pro-inflammatory phenotype. These results suggest that the presence of NO in cancer may regulate TAM metabolism and function, favouring the persistence of inflammation, impairing healing and subverting adaptive immunity responses. Nitric oxide (NO) from the cancer microenvironment acts on tumour-associated macrophages (TAMs). NO induces a phenotypic shift in macrophages through mitochondria-dependent and -independent pathways. NO favours pro-inflammatory cytokine production whilst decreasing macrophage function as antigen presenting cell. NO impairs repair function of macrophages. Presence of NO in cancer may regulate TAM metabolism and function, favouring tumour-promoting inflammation.
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17
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Verberk SG, de Goede KE, Gorki FS, van Dierendonck XA, Argüello RJ, Van den Bossche J. An integrated toolbox to profile macrophage immunometabolism. CELL REPORTS METHODS 2022; 2:100192. [PMID: 35497494 PMCID: PMC9046227 DOI: 10.1016/j.crmeth.2022.100192] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 12/23/2021] [Accepted: 03/07/2022] [Indexed: 10/25/2022]
Abstract
Macrophages are dynamic immune cells that can adopt several activation states. Fundamental to these functional activation states is the regulation of cellular metabolic processes. Especially in mice, metabolic alterations underlying pro-inflammatory or homeostatic phenotypes have been assessed using various techniques. However, researchers new to the field may encounter ambiguity in choosing which combination of techniques is best suited to profile immunometabolism. To address this need, we have developed a toolbox to assess cellular metabolism in a semi-high-throughput 96-well-plate-based format. Application of the toolbox to activated mouse and human macrophages enables fast metabolic pre-screening and robust measurement of extracellular fluxes, mitochondrial mass and membrane potential, and glucose and lipid uptake. Moreover, we propose an application of SCENITH technology for ex vivo metabolic profiling. We validate established activation-induced metabolic rewiring in mouse macrophages and report new insights into human macrophage metabolism. By thoroughly discussing each technique, we hope to guide readers with practical workflows for investigating immunometabolism.
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Affiliation(s)
- Sanne G.S. Verberk
- Department of Molecular Cell Biology and Immunology, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Institute for Infection and Immunity, Cancer Centre Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Kyra E. de Goede
- Department of Molecular Cell Biology and Immunology, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Institute for Infection and Immunity, Cancer Centre Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Friederike S. Gorki
- Department of Molecular Cell Biology and Immunology, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Institute for Infection and Immunity, Cancer Centre Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Institute of Innate Immunity, University Hospital Bonn, University of Bonn, 53127 Bonn, Germany
| | - Xanthe A.M.H. van Dierendonck
- Department of Molecular Cell Biology and Immunology, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Institute for Infection and Immunity, Cancer Centre Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Rafael J. Argüello
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Jan Van den Bossche
- Department of Molecular Cell Biology and Immunology, Amsterdam Cardiovascular Sciences, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam Institute for Infection and Immunity, Cancer Centre Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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18
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Gather F, Ihrig-Biedert I, Kohlhas P, Krutenko T, Peitz M, Brüstle O, Pautz A, Kleinert H. A specific, non-immune system-related isoform of the human inducible nitric oxide synthase is expressed during differentiation of human stem cells into various cell types. Cell Commun Signal 2022; 20:47. [PMID: 35392923 PMCID: PMC8991583 DOI: 10.1186/s12964-022-00855-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND NOS2 expression is mostly found in bacteria-exposed or cytokine-treated tissues and is mostly connected to innate immune reactions. There are three isoforms of NOS2 (NOS2-1 to -3). In RNA-seq data sets, analyzing inflammatory gene expression, only expression of the NOS2-1 mRNA isoform is detected. However, the expression of NOS2 in differentiating human pluripotent stems (hPSCs) has not been analyzed yet. METHODS Public available RNA-seq databases were screened for data of hPSCs during differentiation to different target cells. An isoform specific algorithm was used to analyze NOS2 mRNA isoform expression. In addition, we differentiated four different human iPSC cell lines toward cortical neurons and analyzed NOS2 mRNA expression by qRT-PCR and 5'-RACE. The functionality of the NOS2-2 protein was analyzed by transient transfection of expression clones in human DLD1 cells and nitrate measurement in the supernatant of these cells. RESULTS In RNA-seq databases we detected a transient expression of the NOS2 mRNA during the differentiation of hPSCs to cardiomyocytes, chondrocytes, mesenchymal stromal cells, neurons, syncytiotrophoblast cells, and trophoblasts. NOS2 mRNA isoform specific analyses showed, that the transiently expressed NOS2 mRNA in differentiating hPSC (NOS2-2; "diff-iNOS") differ remarkably from the already described NOS2 transcript found in colon or induced islets (NOS2-1; "immuno-iNOS"). Also, analysis of the NOS2 mRNA- and protein expression during the differentiation of four different hiPSC lines towards cortical neurons showed a transient expression of the NOS2 mRNA and NOS2 protein on day 18 of the differentiation course. 5'-RACE experiments and isoform specific qRT-PCR analyses revealed that only the NOS2-2 mRNA isoform was expressed in these experiments. To analyze the functionality of the NOS2-2 protein, we transfected human DLD-1 cells with tetracycline inducible expression clones encoding the NOS2-1- or -2 coding sequence. After induction of the NOS2-1 or -2 mRNA expression by tetracycline a similar nitrate production was measured proofing the functionality of the NOS2-2 protein isoform. CONCLUSIONS Our data show that a differentiation specific NOS2 isoform (NOS2-2) is transiently expressed during differentiation of hPSC. Video Abstract.
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Affiliation(s)
- Fabian Gather
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.,Department of Molecular Embryology, Institute for Anatomy and Cell Biology, Freiburg, Germany
| | - Irmgard Ihrig-Biedert
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Paul Kohlhas
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Tamara Krutenko
- Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany
| | - Michael Peitz
- Cell Programming Core Facility, Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany.,Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany
| | - Oliver Brüstle
- Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany
| | - Andrea Pautz
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
| | - Hartmut Kleinert
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
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19
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Simpson DS, Pang J, Weir A, Kong IY, Fritsch M, Rashidi M, Cooney JP, Davidson KC, Speir M, Djajawi TM, Hughes S, Mackiewicz L, Dayton M, Anderton H, Doerflinger M, Deng Y, Huang AS, Conos SA, Tye H, Chow SH, Rahman A, Norton RS, Naderer T, Nicholson SE, Burgio G, Man SM, Groom JR, Herold MJ, Hawkins ED, Lawlor KE, Strasser A, Silke J, Pellegrini M, Kashkar H, Feltham R, Vince JE. Interferon-γ primes macrophages for pathogen ligand-induced killing via a caspase-8 and mitochondrial cell death pathway. Immunity 2022; 55:423-441.e9. [PMID: 35139355 PMCID: PMC8822620 DOI: 10.1016/j.immuni.2022.01.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/19/2021] [Accepted: 01/05/2022] [Indexed: 12/12/2022]
Abstract
Cell death plays an important role during pathogen infections. Here, we report that interferon-γ (IFNγ) sensitizes macrophages to Toll-like receptor (TLR)-induced death that requires macrophage-intrinsic death ligands and caspase-8 enzymatic activity, which trigger the mitochondrial apoptotic effectors, BAX and BAK. The pro-apoptotic caspase-8 substrate BID was dispensable for BAX and BAK activation. Instead, caspase-8 reduced pro-survival BCL-2 transcription and increased inducible nitric oxide synthase (iNOS), thus facilitating BAX and BAK signaling. IFNγ-primed, TLR-induced macrophage killing required iNOS, which licensed apoptotic caspase-8 activity and reduced the BAX and BAK inhibitors, A1 and MCL-1. The deletion of iNOS or caspase-8 limited SARS-CoV-2-induced disease in mice, while caspase-8 caused lethality independent of iNOS in a model of hemophagocytic lymphohistiocytosis. These findings reveal that iNOS selectively licenses programmed cell death, which may explain how nitric oxide impacts disease severity in SARS-CoV-2 infection and other iNOS-associated inflammatory conditions.
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Affiliation(s)
- Daniel S. Simpson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Jiyi Pang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia,College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ashley Weir
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Isabella Y. Kong
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Melanie Fritsch
- Institute for Molecular Immunology, Centre for Molecular Medicine Cologne and Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases, University of Cologne, Cologne, 50931, Germany
| | - Maryam Rashidi
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - James P. Cooney
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kathryn C. Davidson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Mary Speir
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Tirta M. Djajawi
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Sebastian Hughes
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Liana Mackiewicz
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Merle Dayton
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Holly Anderton
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Marcel Doerflinger
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Yexuan Deng
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Allan Shuai Huang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Stephanie A. Conos
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Hazel Tye
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Seong H. Chow
- The Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Arfatur Rahman
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia
| | - Raymond S. Norton
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, 3052, Australia,ARC Centre for Fragment-Based Design, Monash University, Parkville, VIC, 3052, Australia
| | - Thomas Naderer
- The Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Sandra E. Nicholson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Gaetan Burgio
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Si Ming Man
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia
| | - Joanna R. Groom
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Marco J. Herold
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Edwin D. Hawkins
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Kate E. Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Department of Molecular and Translational Science, Monash University, Clayton, VIC, 3168, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - John Silke
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Marc Pellegrini
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Hamid Kashkar
- Institute for Molecular Immunology, Centre for Molecular Medicine Cologne and Cologne Excellence Cluster on Cellular Stress Responses in Ageing-Associated Diseases, University of Cologne, Cologne, 50931, Germany
| | - Rebecca Feltham
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia; The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia.
| | - James E. Vince
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia,The Department of Medical Biology, University of Melbourne, Parkville, VIC, 3010, Australia,Corresponding author
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20
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Snyder JP, Gullickson SK, del Rio-Guerra R, Sweezy A, Vagher B, Hogan TC, Lahue KG, Reisz JA, D’Alessandro A, Krementsov DN, Amiel E. Divergent Genetic Regulation of Nitric Oxide Production between C57BL/6J and Wild-Derived PWD/PhJ Mice Controls Postactivation Mitochondrial Metabolism, Cell Survival, and Bacterial Resistance in Dendritic Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:97-109. [PMID: 34872978 PMCID: PMC8702458 DOI: 10.4049/jimmunol.2100375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 10/04/2021] [Indexed: 01/03/2023]
Abstract
Dendritic cell (DC) activation is characterized by sustained commitment to glycolysis that is a requirement for survival in DC subsets that express inducible NO synthase (Nos2) due to NO-mediated inhibition of mitochondrial respiration. This phenomenon primarily has been studied in DCs from the classic laboratory inbred mouse strain C57BL/6J (B6) mice, where DCs experience a loss of mitochondrial function due to NO accumulation. To assess the conservation of NO-driven metabolic regulation in DCs, we compared B6 mice to the wild-derived genetically divergent PWD/PhJ (PWD) strain. We show preserved mitochondrial respiration and enhanced postactivation survival due to attenuated NO production in LPS-stimulated PWD DCs phenocopying human monocyte-derived DCs. To genetically map this phenotype, we used a congenic mouse strain (B6.PWD-Chr11.2) that carries a PWD-derived portion of chromosome 11, including Nos2, on a B6 background. B6.PWD-Chr11.2 DCs show preserved mitochondrial function and produce lower NO levels than B6 DCs. We demonstrate that activated B6.PWD-Chr11.2 DCs maintain mitochondrial respiration and TCA cycle carbon flux, compared with B6 DCs. However, reduced NO production by the PWD Nos2 allele results in impaired cellular control of Listeria monocytogenes replication. These studies establish a natural genetic model for restrained endogenous NO production to investigate the contribution of NO in regulating the interplay between DC metabolism and immune function. These findings suggest that reported differences between human and murine DCs may be an artifact of the limited genetic diversity of the mouse models used, underscoring the need for mouse genetic diversity in immunology research.
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Affiliation(s)
- Julia P. Snyder
- Cell, Molecular, and Biomedical Sciences Program, University of Vermont, Burlington, VT 05405, USA,Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Soyeon K. Gullickson
- Cell, Molecular, and Biomedical Sciences Program, University of Vermont, Burlington, VT 05405, USA
| | - Roxana del Rio-Guerra
- Flow Cytometry and Cell Sorting Facility, Larner College of Medicine, University of Vermont, Burlington, Vermont
| | - Andrea Sweezy
- Undergraduate Student Researcher, University of Vermont
| | - Bay Vagher
- Cell, Molecular, and Biomedical Sciences Program, University of Vermont, Burlington, VT 05405, USA,Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Tyler C. Hogan
- Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Karolyn G. Lahue
- Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Julie A. Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado – Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Angelo D’Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado – Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Dimitry N. Krementsov
- Cell, Molecular, and Biomedical Sciences Program, University of Vermont, Burlington, VT 05405, USA,Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, 05405, USA
| | - Eyal Amiel
- Cell, Molecular, and Biomedical Sciences Program, University of Vermont, Burlington, VT 05405, USA,Department of Biomedical and Health Sciences, College of Nursing and Health Sciences, University of Vermont, Burlington, VT, 05405, USA,Corresponding author: please direct all correspondence to
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21
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Bögel G, Murányi J, Szokol B, Kukor Z, Móra I, Kardon T, Őrfi L, Hrabák A. Production of NOS2 and inflammatory cytokines is reduced by selected protein kinase inhibitors with partial repolarization of HL-60 derived and human blood macrophages. Heliyon 2022; 8:e08670. [PMID: 35028455 PMCID: PMC8741463 DOI: 10.1016/j.heliyon.2021.e08670] [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: 07/12/2021] [Revised: 11/10/2021] [Accepted: 12/21/2021] [Indexed: 11/25/2022] Open
Abstract
JAK/STAT pathway plays a well-known role in macrophage polarization, but other signaling routes may also be involved. The aim of this study was to identify new signaling pathways and repolarize macrophages by selected protein kinase inhibitors. HL-60 derived macrophages were chosen as model cells and human blood macrophages were used for comparison. M1 and M2 polarization of HL60 derived and human blood macrophages was promoted by LPS + IFNγ (LIF) and IL-4 treatments, respectively. In HL-60 derived macrophages, M1 polarization was mediated by Erk1/2 and p38 phosphorylation, while HSP27 phosphorylation was involved in M2 polarization. The inhibition of both MAPK and JAK/STAT pathways reduced the expression of NOS2, IP-10 and TNFα, IL-8 production was decreased by the inhibition of AMPK and PKD, the upstream kinase of HSP27. HSP27 phosphorylation was inhibited by NB 142, a PKD inhibitor. The expression of CD80 (M1 marker) was reduced by MAPK and JAK/STAT inhibitors, without increasing CD206 (M2 marker). On the other hand, CD206 was reduced by PKD and AMPK inhibitors, without increasing CD80 marker. Phagocytic capacity of HL-60 derived macrophages was higher in M1 macrophages and decreased by trametinib and a p38 inhibitor, while in human blood macrophages, where AT 9283, a JAK/STAT inhibitor also caused a significant decrease in M1 polarized macrophages, no difference was observed between M1 and M2 macrophages. Our results suggest that the repolarization of macrophages cannot be achieved by inhibiting their signaling pathways; nevertheless, the expression of certain polarization markers was decreased, therefore a "depolarization" could be observed both in M1 and M2 polarized cells. Selected protein kinase inhibitors of M1 polarization, decreasing NOS 2 and inflammatory cytokines may be potential candidates for therapeutical trials against inflammatory diseases.
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Affiliation(s)
- Gábor Bögel
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
| | - József Murányi
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
- MTA-SE Pathobiochemistry Research Group, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
| | - Bálint Szokol
- Vichem Chemie Research Ltd., Veszprém, H-8200, Viola u. 2., Hungary
| | - Zoltán Kukor
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
| | - István Móra
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
- MTA-SE Pathobiochemistry Research Group, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
| | - Tamás Kardon
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
| | - László Őrfi
- Vichem Chemie Research Ltd., Veszprém, H-8200, Viola u. 2., Hungary
- Department of Pharmaceutical Chemistry, Semmelweis University, Budapest, H-1092, Hőgyes E. u. 9., Hungary
| | - András Hrabák
- Department of Molecular Biology, Institute of Biochemistry and Molecular Biology, Semmelweis University, Budapest, H-1094, Tűzoltó u. 37-43, Hungary
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22
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Deficiency of the novel high mobility group protein HMGXB4 protects against systemic inflammation-induced endotoxemia in mice. Proc Natl Acad Sci U S A 2021; 118:2021862118. [PMID: 33563757 DOI: 10.1073/pnas.2021862118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Sepsis is a major cause of mortality in intensive care units, which results from a severely dysregulated inflammatory response that ultimately leads to organ failure. While antibiotics can help in the early stages, effective strategies to curtail inflammation remain limited. The high mobility group (HMG) proteins are chromosomal proteins with important roles in regulating gene transcription. While HMGB1 has been shown to play a role in sepsis, the role of other family members including HMGXB4 remains unknown. We found that expression of HMGXB4 is strongly induced in response to lipopolysaccharide (LPS)-elicited inflammation in murine peritoneal macrophages. Genetic deletion of Hmgxb4 protected against LPS-induced lung injury and lethality and cecal ligation and puncture (CLP)-induced lethality in mice, and attenuated LPS-induced proinflammatory gene expression in cultured macrophages. By integrating genome-wide transcriptome profiling and a publicly available ChIP-seq dataset, we identified HMGXB4 as a transcriptional activator that regulates the expression of the proinflammatory gene, Nos2 (inducible nitric oxide synthase 2) by binding to its promoter region, leading to NOS2 induction and excessive NO production and tissue damage. Similar to Hmgxb4 ablation in mice, administration of a pharmacological inhibitor of NOS2 robustly decreased LPS-induced pulmonary vascular permeability and lethality in mice. Additionally, we identified the cell adhesion molecule, ICAM1, as a target of HMGXB4 in endothelial cells that facilitates inflammation by promoting monocyte attachment. In summary, our study reveals a critical role of HMGXB4 in exacerbating endotoxemia via transcriptional induction of Nos2 and Icam1 gene expression and thus targeting HMGXB4 may be an effective therapeutic strategy for the treatment of sepsis.
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23
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Cui C, Zhou Y, Cui Q. Defining the functional divergence of orthologous genes between human and mouse in the context of miRNA regulation. Brief Bioinform 2021; 22:6314723. [PMID: 34226920 DOI: 10.1093/bib/bbab253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 11/13/2022] Open
Abstract
Animal models have a certain degree of similarity with human in genes and physiological processes, which leads them to be valuable tools for studying human diseases and for assisting drug development. However, translational researches adopting animal models are largely restricted by the species heterogeneity, which is also a major reason for the failure of drug research. Currently, computational method for exploring the functional differences between orthologous genes is still insufficient. For this purpose, here, we presented an algorithm, functional divergence score (FDS), by comprehensively evaluating the functional differences between the microRNAs regulating the paired orthologous genes. Given that mouse is one of the most popular model animals, currently, FDS was designed to dissect the functional divergence of orthologous genes between human and mouse. The results showed that gene FDS value is significantly associated with gene evolutionary characteristics and can discover expression divergence of human-mouse orthologous genes. Moreover, FDS performed well in distinguishing the targets of approved drugs and the failed ones. These results suggest that FDS is a valuable tool to evaluate the functional divergence of paired human and mouse orthologous genes. In addition, for each orthologous gene pair, FDS can provide detailed differences in functions and phenotypes. Our study provided a useful tool for quantifying the functional difference between human and mouse, and the presented framework is easily to be extended to the orthologous genes between human and other species. An online server of FDS is available at http://www.cuilab.cn/fds/.
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Affiliation(s)
- Chunmei Cui
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yuan Zhou
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Qinghua Cui
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, China
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24
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Nitric Oxide Modulates Metabolic Processes in the Tumor Immune Microenvironment. Int J Mol Sci 2021; 22:ijms22137068. [PMID: 34209132 PMCID: PMC8268115 DOI: 10.3390/ijms22137068] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 02/07/2023] Open
Abstract
The metabolic requirements and functions of cancer and normal tissues are vastly different. Due to the rapid growth of cancer cells in the tumor microenvironment, distorted vasculature is commonly observed, which creates harsh environments that require rigorous and constantly evolving cellular adaption. A common hallmark of aggressive and therapeutically resistant tumors is hypoxia and hypoxia-induced stress markers. However, recent studies have identified alterations in a wide spectrum of metabolic pathways that dictate tumor behavior and response to therapy. Accordingly, it is becoming clear that metabolic processes are not uniform throughout the tumor microenvironment. Metabolic processes differ and are cell type specific where various factors promote metabolic heterogeneity within the tumor microenvironment. Furthermore, within the tumor, these metabolically distinct cell types can organize to form cellular neighborhoods that serve to establish a pro-tumor milieu in which distant and spatially distinct cellular neighborhoods can communicate via signaling metabolites from stroma, immune and tumor cells. In this review, we will discuss how biochemical interactions of various metabolic pathways influence cancer and immune microenvironments, as well as associated mechanisms that lead to good or poor clinical outcomes.
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25
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Güngör T, Ozleyen A, Yılmaz YB, Siyah P, Ay M, Durdağı S, Tumer TB. New nimesulide derivatives with amide/sulfonamide moieties: Selective COX-2 inhibition and antitumor effects. Eur J Med Chem 2021; 221:113566. [PMID: 34077833 DOI: 10.1016/j.ejmech.2021.113566] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 12/16/2022]
Abstract
Seventeen new amide/sulfonamide containing nimesulide derivatives were synthesized and characterized by several spectroscopic techniques and primarily investigated for their inhibitory potential on COX enzymes and other pro-inflammatory factors. Experimental analyses showed that among seventeen compounds, N8 and N10 have remarkable potency and selectivity for the COX-2 enzyme over COX-1 at very low doses as compared to nimesulide. Moreover, both N8 and N10 selectively reduced the Lipopolysaccharide (LPS)-stimulated COX-2 mRNA expression level while the COX-1 level remained stable. Both PGE2 release and nitric oxide production in macrophage cells were significantly suppressed by the N8 and N10 treatment groups. In silico ADME/Tox, molecular docking and molecular dynamics (MD) simulations were also conducted. Additionally, all compounds were also screened in a panel of cancer cell lines for their antiproliferative properties by MTT and SRB assays. Compound N17 exhibited a considerable antiproliferative effect on the colon (IC50: 9.24 μM) and breast (IC50: 11.35 μM) cancer cell lines. N17 exposure for 48 h decreased expression of anti-apoptotic protein BCL-2 and increased the expression of apoptogenic BAX. Besides, the BAX/BCL-2 ratio was increased with visible ultrastructural changes and apoptotic bodies under scanning electron microscopy. In order to investigate the structural and dynamical properties of selected hits on the target structures, multiscale molecular modeling studies are also conducted. Our combined in silico and in vitro results suggest that N8 and N10 could be further developed as potential nonsteroidal anti-inflammatory drugs (NSAIDs), while cytotoxic N17 might be studied as a potential lead compound that could be developed as an anticancer agent.
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Affiliation(s)
- Tuğba Güngör
- Department of Chemistry, Faculty of Sciences and Arts, Natural Products and Drug Research Laboratory, Çanakkale Onsekiz Mart University, Çanakkale, 17020, Turkey.
| | - Adem Ozleyen
- Graduate Program of Biomolecular Sciences, School of Graduate Studies, Canakkale Onsekiz Mart University, 17020, Çanakkale, Turkey; School of Chemistry, University of Leicester, LE1 7RH, Leicester, United Kingdom
| | - Yakup Berkay Yılmaz
- Graduate Program of Biomolecular Sciences, School of Graduate Studies, Canakkale Onsekiz Mart University, 17020, Çanakkale, Turkey; Department of Molecular Biology and Genetics, Faculty of Arts and Science, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Turkey
| | - Pinar Siyah
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahçeşehir University, 34353, Istanbul, Turkey
| | - Mehmet Ay
- Department of Chemistry, Faculty of Sciences and Arts, Natural Products and Drug Research Laboratory, Çanakkale Onsekiz Mart University, Çanakkale, 17020, Turkey
| | - Serdar Durdağı
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahçeşehir University, 34353, Istanbul, Turkey
| | - Tugba Boyunegmez Tumer
- Department of Molecular Biology and Genetics, Faculty of Arts and Science, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Turkey.
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26
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Clayton SA, MacDonald L, Kurowska-Stolarska M, Clark AR. Mitochondria as Key Players in the Pathogenesis and Treatment of Rheumatoid Arthritis. Front Immunol 2021; 12:673916. [PMID: 33995417 PMCID: PMC8118696 DOI: 10.3389/fimmu.2021.673916] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 04/12/2021] [Indexed: 12/22/2022] Open
Abstract
Mitochondria are major energy-producing organelles that have central roles in cellular metabolism. They also act as important signalling hubs, and their dynamic regulation in response to stress signals helps to dictate the stress response of the cell. Rheumatoid arthritis is an inflammatory and autoimmune disease with high prevalence and complex aetiology. Mitochondrial activity affects differentiation, activation and survival of immune and non-immune cells that contribute to the pathogenesis of this disease. This review outlines what is known about the role of mitochondria in rheumatoid arthritis pathogenesis, and how current and future therapeutic strategies can function through modulation of mitochondrial activity. We also highlight areas of this topic that warrant further study. As producers of energy and of metabolites such as succinate and citrate, mitochondria help to shape the inflammatory phenotype of leukocytes during disease. Mitochondrial components can directly stimulate immune receptors by acting as damage-associated molecular patterns, which could represent an initiating factor for the development of sterile inflammation. Mitochondria are also an important source of intracellular reactive oxygen species, and facilitate the activation of the NLRP3 inflammasome, which produces cytokines linked to disease symptoms in rheumatoid arthritis. The fact that mitochondria contain their own genetic material renders them susceptible to mutation, which can propagate their dysfunction and immunostimulatory potential. Several drugs currently used for the treatment of rheumatoid arthritis regulate mitochondrial function either directly or indirectly. These actions contribute to their immunomodulatory functions, but can also lead to adverse effects. Metabolic and mitochondrial pathways are attractive targets for future anti-rheumatic drugs, however many questions still remain about the precise role of mitochondrial activity in different cell types in rheumatoid arthritis.
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Affiliation(s)
- Sally A Clayton
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom.,Research into Inflammatory Arthritis Centre Versus Arthritis (RACE), Birmingham, United Kingdom
| | - Lucy MacDonald
- Research into Inflammatory Arthritis Centre Versus Arthritis (RACE), Glasgow, United Kingdom.,Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Mariola Kurowska-Stolarska
- Research into Inflammatory Arthritis Centre Versus Arthritis (RACE), Glasgow, United Kingdom.,Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Andrew R Clark
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom.,Research into Inflammatory Arthritis Centre Versus Arthritis (RACE), Birmingham, United Kingdom
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27
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Singh D, Wasan H, Reeta KH. Preclinical Stroke Research and Translational Failure: A Bird's Eye View on Preventable Variables. Cell Mol Neurobiol 2021; 42:2003-2017. [PMID: 33786698 DOI: 10.1007/s10571-021-01083-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/18/2021] [Indexed: 02/08/2023]
Abstract
Despite achieving remarkable success in understanding the cellular, molecular and pathophysiological aspects of stroke, translation from preclinical research has always remained an area of debate. Although thousands of experimental compounds have been reported to be neuro-protective, their failures in clinical setting have left the researchers and stakeholders in doldrums. Though the failures described have been excruciating, they also give us a chance to refocus on the shortcomings. For better translational value, evidences from preclinical studies should be robust and reliable. Preclinical study design has a plethora of variables affecting the study outcome. Hence, this review focusses on the factors to be considered for a well-planned preclinical study while adhering to guidelines with emphasis on the study design, commonly used animal models, their limitations with special attention on various preventable attritions including comorbidities, aged animals, time of dosing, outcome measures and physiological variables along with the concept of multicentric preclinical randomized controlled trials. Here, we provide an overview of a panorama of practical aspects, which could be implemented, so that a well-defined preclinical study would result in a neuro-protectant with better translational value.
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Affiliation(s)
- Devendra Singh
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Himika Wasan
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - K H Reeta
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi, 110029, India.
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28
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Kumar S, Gupta E, Gupta N, Kaushik S, Srivastava VK, Kumar S, Mehta S, Jyoti A. Functional role of iNOS-Rac2 interaction in neutrophil extracellular traps (NETs) induced cytotoxicity in sepsis. Clin Chim Acta 2021; 513:43-49. [PMID: 33309799 DOI: 10.1016/j.cca.2020.12.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 11/01/2020] [Accepted: 12/02/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Recent reports from this lab have demonstrated a higher incidence of NETs, nitrosative, as well as oxidative stress, and have a direct correlation with the severity of sepsis and organ damage. However, the mechanistic perspective of NETs induced organ damage has not been understood at the cellular and molecular level. Interaction of inducible nitric oxide synthase (iNOS) with Rac2 in regulating reactive oxygen species (ROS) and reactive nitrogen species (RNS) generation and its implications in microbial killing has been reported. This study was, therefore, undertaken in neutrophils of sepsis patients to investigate the functional importance of iNOS-Rac2 interaction in ROS/ RNS, peroxynitrite generation, NETs generation, and NETs mediated cell death. METHODS The study was conducted on 100 patients with sepsis and 50 healthy volunteers. Interaction between iNOS and Rac2 was performed using co-immunoprecipitation and co-immunolabeling assay. Free radicals involving ROS and RNS were evaluated using cytochrome c reduction assay. NETs formation was evaluated by fluorescence microscopy. The cytotoxic effect of NETs was assessed on lung carcinoma cell line (A549) using colorimetric Alamar blue assay. RESULTS Enhanced interaction between iNOS and Rac2 was found in sepsis neutrophils in comparison with control. This was accompanied by an increased level of superoxide (O2.-), nitric oxide (NO), and peroxynitrite (ONOO-) which were decreased in the presence of NAC, DPI, and 1400 W, signifying the role of iNOS-Rac2 interaction. Enhanced NETs release from activated sepsis neutrophils were abrogated in the presence of DPI. NETs from sepsis neutrophils exert a cytotoxic effect on lung epithelial cells (A549) in a concentration-dependent manner. CONCLUSION Our findings exhibit the functional role of iNOS-Rac2 interaction in ROS/RNS, peroxynitrite generation, NETs generation, and NETs mediated cell death.
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Affiliation(s)
- S Kumar
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, India
| | - E Gupta
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, India
| | - N Gupta
- Department of Biotechnology, IIS (deemed to be University), Gurukul Marg, SFS, Mansarovar, Jaipur, India
| | - S Kaushik
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, India
| | - V K Srivastava
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, India
| | - S Kumar
- Amity School of Architecture and Planning, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, India
| | - S Mehta
- Department of Medicine, SMS Medical College & Attached Hospitals, J.L.N. Marg, Jaipur, Rajasthan, India
| | - A Jyoti
- Amity Institute of Biotechnology, Amity University Rajasthan, Amity Education Valley, Kant Kalwar, NH-11C, Jaipur-Delhi Highway, Jaipur, India.
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29
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Ozleyen A, Yilmaz YB, Tumer TB. Dataset on the differentiation of THP-1 monocytes to LPS inducible adherent macrophages and their capacity for NO/iNOS signaling. Data Brief 2021; 35:106786. [PMID: 33553532 PMCID: PMC7851796 DOI: 10.1016/j.dib.2021.106786] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 01/22/2023] Open
Abstract
When THP-1 cells are differentiated into adherent macro-phage-like cells, they respond to inflammatory stimuli by changing their phenotypes to an activation state and altering the expression of inflammation-related genes. Nitric oxide (NO) is a diatomic molecule implicating in various pathological conditions including tissue damage, ER stress, obesity, and cancer. The sustained inflammatory microenvironment leads to increased NO release through the activation of the inducible nitric oxide synthase (iNOS) gene in macrophages. Here, we provide a dataset on the optimized conditions for the THP-1 differentiation and the induction of NO/iNOS signaling under inflammatory stimulus. The human monocytic cells were differentiated into adherent macrophage-like phenotype by phorbol-12-myristate-13-acetate (PMA) stimulation under optimized conditions. In this study, NO/iNOS signaling capacity and the regulation of other pro-inflammatory genes including TNF-α, IL-1β, and COX-2 in the LPS-induced THP-1 were examined.
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Affiliation(s)
- Adem Ozleyen
- Graduate Program of Biomolecular Sciences, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020 Çanakkale, Turkey
| | - Yakup Berkay Yilmaz
- Graduate Program of Biomolecular Sciences, School of Graduate Studies, Çanakkale Onsekiz Mart University, 17020 Çanakkale, Turkey
| | - Tugba Boyunegmez Tumer
- Department of Molecular Biology and Genetics, Faculty of Science and Art, Çanakkale Onsekiz Mart University, 17020 Çanakkale, Turkey
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30
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Analysis of Il36a induction by C/EBPβ via a half-CRE•C/EBP element in murine macrophages in dependence of its CpG methylation level. Genes Immun 2021; 22:313-321. [PMID: 34697411 PMCID: PMC8674125 DOI: 10.1038/s41435-021-00153-5] [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: 05/13/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 11/12/2022]
Abstract
Interleukin-36α is a novel member of the IL-1 cytokine family that is highly expressed in epithelial tissues and several myeloid-derived cell types after induction. The transcription factor (TF) C/EBPβ binds specifically to an essential half-CRE•C/EBP motif in the Il36a promoter to induce Il36a expression upon LPS stimulation. C/EBPs regulate gene expression by binding to recognition sequences that can contain 5'-cytosine-phosphate-guanine-3' dinucleotides (CpG), whose methylation can influence TF binding and gene expression. Herein we show that the half-CRE•C/EBP element in the Il36a promoter is differentially methylated in the murine RAW264.7 macrophage cell line and in primary murine macrophages. We demonstrate that C/EBPβ binding to the half-CRE•C/EBP element in the Il36a promoter following LPS stimulation is insensitive to CpG methylation and that methylation of the CpG in the half-CRE•C/EBP element does not alter LPS-induced Il36a promoter activity which correlated with similar Il36a mRNA copy numbers and pro-IL-36α protein amount in both cell types. Taken together, our data indicate that C/EBPβ binding to the half-CRE•C/EBP element and subsequent gene activation occurs independently of the CpG methylation status of the half-CRE•C/EBP motif and underlines the potential of C/EBPs to recognize methylated as well as unmethylated motifs.
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31
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Ko JH, Olona A, Papathanassiu AE, Buang N, Park KS, Costa ASH, Mauro C, Frezza C, Behmoaras J. BCAT1 affects mitochondrial metabolism independently of leucine transamination in activated human macrophages. J Cell Sci 2020; 133:jcs247957. [PMID: 33148611 PMCID: PMC7116427 DOI: 10.1242/jcs.247957] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022] Open
Abstract
In response to environmental stimuli, macrophages change their nutrient consumption and undergo an early metabolic adaptation that progressively shapes their polarization state. During the transient, early phase of pro-inflammatory macrophage activation, an increase in tricarboxylic acid (TCA) cycle activity has been reported, but the relative contribution of branched-chain amino acid (BCAA) leucine remains to be determined. Here, we show that glucose but not glutamine is a major contributor of the increase in TCA cycle metabolites during early macrophage activation in humans. We then show that, although uptake of BCAAs is not altered, their transamination by BCAT1 is increased following 8 h lipopolysaccharide (LPS) stimulation. Of note, leucine is not metabolized to integrate into the TCA cycle in basal or stimulated human macrophages. Surprisingly, the pharmacological inhibition of BCAT1 reduced glucose-derived itaconate, α-ketoglutarate and 2-hydroxyglutarate levels without affecting succinate and citrate levels, indicating a partial inhibition of the TCA cycle. This indirect effect is associated with NRF2 (also known as NFE2L2) activation and anti-oxidant responses. These results suggest a moonlighting role of BCAT1 through redox-mediated control of mitochondrial function during early macrophage activation.
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Affiliation(s)
- Jeong-Hun Ko
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | - Antoni Olona
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | | | - Norzawani Buang
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
| | - Kwon-Sik Park
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Ana S H Costa
- Medical Research Council Cancer Unit, University of Cambridge, Cambridge CB2 0XZ, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Mindelsohn Way, Birmingham B15 2WB, UK
| | - Christian Frezza
- Medical Research Council Cancer Unit, University of Cambridge, Cambridge CB2 0XZ, UK
| | - Jacques Behmoaras
- Centre for Inflammatory Disease, Imperial College London, London W12 0NN, UK
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32
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Saas P, Chagué C, Maraux M, Cherrier T. Toward the Characterization of Human Pro-Resolving Macrophages? Front Immunol 2020; 11:593300. [PMID: 33281821 PMCID: PMC7691375 DOI: 10.3389/fimmu.2020.593300] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/22/2020] [Indexed: 12/11/2022] Open
Affiliation(s)
- Philippe Saas
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Cécile Chagué
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Mélissa Maraux
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
| | - Thomas Cherrier
- Univ. Bourgogne Franche-Comté, INSERM, EFS BFC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Fédération Hospitalo-Universitaire INCREASE, LabEx LipSTIC, Besançon, France
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33
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Technical advance: The use of tree shrews as a model of pulmonary fibrosis. PLoS One 2020; 15:e0241323. [PMID: 33141839 PMCID: PMC7608928 DOI: 10.1371/journal.pone.0241323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/13/2020] [Indexed: 11/25/2022] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive disease with a high morbidity and mortality. Some of the mechanisms of fibrosis development have been described using rodent models; however, the relevance of findings in these animal models is difficult to assess. New innovative models are needed that closely mimic IPF disease pathology. Methods To overcome this unmet need of investigating IPF with a relevant model, we utilized tree shrews, which are genetically, anatomically, and metabolically similar to primates and humans. Using human antibodies and primers, we investigated the role of macrophage phenotypic switching in normal and IPF subjects and bleomycin-injured tree shrews. Results Bronchoalveolar lavage (BAL) cells from tree shrews expressed human markers, and there was recruitment of monocyte-derived macrophages (MDMs) to the lung in IPF subjects and bleomycin-injured tree shrews. MDMs were polarized to a profibrotic phenotype in IPF and in bleomycin-injured tree shrews. Resident alveolar macrophages (RAMs) expressed proinflammatory markers regardless of bleomycin exposure. Tree shrews developed bleomycin-induced pulmonary fibrosis with architectural distortion in parenchyma and widespread collagen deposition. Conclusion The profibrotic polarization of macrophages has been demonstrated to be present in IPF subjects and in fibrotic mice. Although the lung macrophages have long been considered to be homogeneous, recent evidence indicates that these cells are heterogeneous during multiple chronic lung diseases. Here, we show new data that indicate a critical and essential role for macrophage-fibroblast crosstalk promoting fibroblast differentiation and collagen production. in the development and progression of fibrosis. The current data strongly suggest development of therapeutics that attenuate of the profibrotic activation of MDMs may mitigate macrophage-fibroblast interaction. These observations demonstrate that tree shrews are an ideal animal model to investigate the pathogenesis of IPF as they are genetically, anatomically, and metabolically closer to humans than the more commonly used rodent models.
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34
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Palmieri EM, McGinity C, Wink DA, McVicar DW. Nitric Oxide in Macrophage Immunometabolism: Hiding in Plain Sight. Metabolites 2020; 10:metabo10110429. [PMID: 33114647 PMCID: PMC7693038 DOI: 10.3390/metabo10110429] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023] Open
Abstract
Nitric Oxide (NO) is a soluble endogenous gas with various biological functions like signaling, and working as an effector molecule or metabolic regulator. In response to inflammatory signals, immune myeloid cells, like macrophages, increase production of cytokines and NO, which is important for pathogen killing. Under these proinflammatory circumstances, called “M1”, macrophages undergo a series of metabolic changes including rewiring of their tricarboxylic acid (TCA) cycle. Here, we review findings indicating that NO, through its interaction with heme and non-heme metal containing proteins, together with components of the electron transport chain, functions not only as a regulator of cell respiration, but also a modulator of intracellular cell metabolism. Moreover, diverse effects of NO and NO-derived reactive nitrogen species (RNS) involve precise interactions with different targets depending on concentration, temporal, and spatial restrictions. Although the role of NO in macrophage reprogramming has been in evidence for some time, current models have largely minimized its importance. It has, therefore, been hiding in plain sight. A review of the chemical properties of NO, past biochemical studies, and recent publications, necessitates that mechanisms of macrophage TCA reprogramming during stimulation must be re-imagined and re-interpreted as mechanistic results of NO exposure. The revised model of metabolic rewiring we describe here incorporates many early findings regarding NO biochemistry and brings NO out of hiding and to the forefront of macrophages immunometabolism.
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35
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von Pein JB, Stocks CJ, Schembri MA, Kapetanovic R, Sweet MJ. An alloy of zinc and innate immunity: Galvanising host defence against infection. Cell Microbiol 2020; 23:e13268. [PMID: 32975847 DOI: 10.1111/cmi.13268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 12/16/2022]
Abstract
Innate immune cells such as macrophages and neutrophils initiate protective inflammatory responses and engage antimicrobial responses to provide frontline defence against invading pathogens. These cells can both restrict the availability of certain transition metals that are essential for microbial growth and direct toxic concentrations of metals towards pathogens as antimicrobial responses. Zinc is important for the structure and function of many proteins, however excess zinc can be cytotoxic. In recent years, several studies have revealed that innate immune cells can deliver toxic concentrations of zinc to intracellular pathogens. In this review, we discuss the importance of zinc status during infectious disease and the evidence for zinc intoxication as an innate immune antimicrobial response. Evidence for pathogen subversion of this response is also examined. The likely mechanisms, including the involvement of specific zinc transporters that facilitate delivery of zinc by innate immune cells for metal ion poisoning of pathogens are also considered. Precise mechanisms by which excess levels of zinc can be toxic to microorganisms are then discussed, particularly in the context of synergy with other antimicrobial responses. Finally, we highlight key unanswered questions in this emerging field, which may offer new opportunities for exploiting innate immune responses for anti-infective development.
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Affiliation(s)
- Jessica B von Pein
- Institute for Molecular Bioscience (IMB), The University of Queensland, St. Lucia, Queensland, Australia.,IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, Queensland, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia
| | - Claudia J Stocks
- Institute for Molecular Bioscience (IMB), The University of Queensland, St. Lucia, Queensland, Australia.,IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, Queensland, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia
| | - Mark A Schembri
- Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia.,School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Queensland, Australia
| | - Ronan Kapetanovic
- Institute for Molecular Bioscience (IMB), The University of Queensland, St. Lucia, Queensland, Australia.,IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, Queensland, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia
| | - Matthew J Sweet
- Institute for Molecular Bioscience (IMB), The University of Queensland, St. Lucia, Queensland, Australia.,IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, Queensland, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia
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36
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Chikkamenahalli LL, Pasricha PJ, Farrugia G, Grover M. Gastric Biopsies in Gastroparesis: Insights into Gastric Neuromuscular Disorders to Aid Treatment. Gastroenterol Clin North Am 2020; 49:557-570. [PMID: 32718570 PMCID: PMC7387746 DOI: 10.1016/j.gtc.2020.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The cellular and molecular understanding of human gastroparesis has markedly improved due to studies on full-thickness gastric biopsies. A decrease in the number of interstitial cells of Cajal (ICC) and functional changes in ICC constitutes the hallmark cellular feature of gastroparesis. More recently, in animal models, macrophages have also been identified to play a central role in development of delayed gastric emptying. Activation of macrophages leads to loss of ICC. In human gastroparesis, loss of anti-inflammatory macrophages in gastric muscle has been shown. Deeper molecular characterization using transcriptomics and proteomics has identified macrophage-based immune dysregulation in human gastroparesis.
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Affiliation(s)
- Lakshmikanth L. Chikkamenahalli
- Enteric NeuroScience Program, Mayo clinic, Division of Gastroenterology & Hepatology, Physiology & Biomedical Engineering Mayo Clinic, 200 1 Street SW, Rochester, MN 55905, Tel: +1 507-538-0337
| | - Pankaj J. Pasricha
- Center for Neurogastroenterology, Division of Gastroenterology & Hepatology Johns Hopkins School of Medicine, Ross 958, 720 Rutland Avenue, Baltimore, MD 21205, Tel: +1 443-613-8152
| | - Gianrico Farrugia
- Enteric NeuroScience Program, Division of Gastroenterology & Hepatology, Physiology & Biomedical Engineering Mayo Clinic, 200 1 Street SW, Rochester, MN 55905, Tel: +1 507-284-4695
| | - Madhusudan Grover
- Enteric NeuroScience Program, Division of Gastroenterology and Hepatology, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA; Division of Physiology and Biomedical Engineering, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA.
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37
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Nelson MC, O'Connell RM. MicroRNAs: At the Interface of Metabolic Pathways and Inflammatory Responses by Macrophages. Front Immunol 2020; 11:1797. [PMID: 32922393 PMCID: PMC7456828 DOI: 10.3389/fimmu.2020.01797] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022] Open
Abstract
Macrophages are key cells of the innate immune system with functional roles in both homeostatic maintenance of self-tissues and inflammatory responses to external stimuli, including infectious agents. Recent advances in metabolic research have revealed that macrophage functions rely upon coordinated metabolic programs to regulate gene expression, inflammation, and other important cellular processes. Polarized macrophages adjust their use of nutrients such as glucose and amino acids to meet their changing metabolic needs, and this in turn supports the functions of the activated macrophage. Metabolic and inflammatory processes have been widely studied, and a crucial role for their regulation at the post-transcriptional level by microRNAs (miRNAs) has been identified. miRNAs govern many facets of macrophage biology, including direct targeting of metabolic regulators and inflammatory pathways. This review will integrate emerging data that support an interplay between miRNAs and metabolism during macrophage inflammatory responses, highlighting critical miRNAs and miRNA families. Additionally, we will address the implications of these networks for human disease and discuss emerging areas of research in this field.
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Affiliation(s)
- Morgan C Nelson
- Department of Pathology, Division of Microbiology and Immunology, University of Utah, Salt Lake City, UT, United States.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
| | - Ryan M O'Connell
- Department of Pathology, Division of Microbiology and Immunology, University of Utah, Salt Lake City, UT, United States.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
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38
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El-Arabey AA, Abdalla M, Abd-Allah AR. SnapShot: TP53 status and macrophages infiltration in TCGA-analyzed tumors. Int Immunopharmacol 2020; 86:106758. [PMID: 32663767 DOI: 10.1016/j.intimp.2020.106758] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/08/2020] [Accepted: 06/26/2020] [Indexed: 12/31/2022]
Abstract
The infiltration of immune cells is a hallmark of most forms of malignancy. It is well known that in Tumor Microenvironment (TME), monocytes undergo reprogramming process to differentiate into Tumor Associated Macrophages (TAMs) (M2 macrophages). Interestingly, this reprogramming process depends on signals provided by tumors. Hence, tumors from several tissues are infiltrated by functionally distinct TAMs populations. Tumor Protein p53(TP53) plays a role in the regulation or progression of DNA damage and repair through multiple mechanisms of the cell cycle, apoptosis, and genomic stability. Although, TP53 acts as a physiological break for M2 macrophages polarization; the potential regulatory function of TP53 in the infiltration of macrophages is still unknown. We used the Cancer Genomic Atlas (TCGA) clinical data from 10,009 samples across 30 types of cancer via the Tumor IMmune Estimation Tool (TIMER) (https://cistrome.shinyapps.io/timer/) to investigate whether TP53 status has an important clinical outcome on macrophages infiltration in different cancer types. Our analysis of TCGA showed that Ovarian Serous Cystadenocarcinoma (OV) patients with mutant TP53 had significantly higher macrophages infiltration than those with wild-type TP53 (P-value < 0.05) and poor prognosis associated. In contrast, Stomach Adenocarcinoma (STAD) patients with wild-type TP53 had considerably higher macrophages infiltration than those with mutant TP53 (P-value < 0.01) and poor clinical outcomes. Herein, our study sheds light on the novel clinical role of TP53 in macrophages infiltration in TME of OV and STAD patients. Furthermore, the modulation of TP53 and its co-regulators may serve as promising targets for OV and STAD patients.
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Affiliation(s)
- Amr Ahmed El-Arabey
- Department of Pharmacology and Toxicology, Al-Azhar University, Faculty of Pharmacy, Cairo, Egypt.
| | - Mohnad Abdalla
- Department of Pharmaceutics, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan, Shandong Province 250012, China
| | - Adel Rashad Abd-Allah
- Department of Pharmacology and Toxicology, Al-Azhar University, Faculty of Pharmacy, Cairo, Egypt.
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39
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Zhu F, Xiong F, He J, Liu K, You Y, Xu Q, Miao J, Du Y, Zhang L, Ren H, Wang X, Chen J, Li J, Chen S, Liu X, Huang N, Wang Y. Brd4 inhibition ameliorates Pyocyanin-mediated macrophage dysfunction via transcriptional repression of reactive oxygen and nitrogen free radical pathways. Cell Death Dis 2020; 11:459. [PMID: 32541671 PMCID: PMC7295752 DOI: 10.1038/s41419-020-2672-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/31/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022]
Abstract
Macrophages play critical roles in the first-line immune defense against airway infections caused by Pseudomonas aeruginosa (PA). The redox-active phenazine-pyocyanin (PCN), as one of the most essential virulence factors, facilities PA-related infection via a wide spectrum of cellular oxidative damages. However, little is known for PCN cytotoxicity in macrophages. In this study, besides showing PCN-mediated reactive oxygen species (ROS) indeed involved in macrophage viability and function impairment, we at the first time demonstrated a novel role of reactive nitrogen species (RNS) pathway causing cellular damage in PCN-challenged macrophages. Using small molecule inhibitor JQ1 targeting Bromodomain and extra-terminal family proteins, we showed restrained iNOS-dependent nitric oxide (NO) production correlated with abolished Brd4 recruitment to the NOS2 (encoding inducible nitric oxide synthase-iNOS) promoter. Application of JQ1 diminished PCN-mediated peroxynitrite (ONOO-) that followed ROS and NO induction, restored macrophage survival and bacteria clearance as well as repressed local inflammation in PA/PCN-challenged mice lungs. Our results uncover a novel link between PCN-mediated macrophage dysfunction and reactive free radicals that rely on Brd4-dependent transcription modulation of multiple stress-response genes, suggesting Brd4 could be a promising therapeutic target in treating PA-related lung infection.
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Affiliation(s)
- Feimei Zhu
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Feng Xiong
- Department of Cardiology, The third People's Hospital of Chengdu, 610031, Chengdu, China
| | - Jinchen He
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Keyun Liu
- Department of Physiology, School of Medicine, Hubei University for Nationalities, 445000, Enshi, China
| | - Yuanyuan You
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Qian Xu
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Junming Miao
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Yu Du
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Lijuan Zhang
- Department of Cardiology, The third People's Hospital of Chengdu, 610031, Chengdu, China
| | - Hongyu Ren
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Xiaoying Wang
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Junli Chen
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Jingyu Li
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Shanze Chen
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Xiaokang Liu
- Department of Pharmacology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China
| | - Ning Huang
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China.
| | - Yi Wang
- Department of Pathophysiology, West China College of Basic medical sciences & Forensic Medicine, Sichuan University, 610041, Chengdu, China.
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40
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Abulwerdi G, Stoica BA, Loane DJ, Faden AI. Putative mGluR4 positive allosteric modulators activate G i-independent anti-inflammatory mechanisms in microglia. Neurochem Int 2020; 138:104770. [PMID: 32454165 DOI: 10.1016/j.neuint.2020.104770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/11/2020] [Accepted: 05/15/2020] [Indexed: 01/23/2023]
Abstract
Chronic dysregulated microglial activation may lead to persistent inflammation and progressive neurodegeneration. A previous study reported that ADX88178, a putative metabotropic glutamate receptor 4 (mGluR4) positive allosteric modulator (PAM), exerts anti-inflammatory effects in microglia by activating mGluR4. We employed in vitro models of immortalized microglia cell lines and primary microglia to elucidate the molecular mechanisms responsible for the regulation of inflammatory pathways by ADX88178 and other mGluR4 PAMs. ADX88178 downregulated lipopolysaccharide (LPS)-induced expression of pro-inflammatory mediators, including TNF-α, IL-1β, CCL-2, IL-6, NOS2, and miR-155, as well as NO levels, in BV2 cells and primary microglia. Other mGluR4 modulators had divergent activities; VU0361737 (PAM) showed anti-inflammatory effects, whereas the orthosteric group III agonist, L-AP4, and VU0155041 (PAM) displayed no anti-inflammatory actions. In contrast to the earlier report, ADX88178 anti-inflammatory effects appeared to be mGluR4-independent as mGluR4 expression in our in vitro models was very low and its actions were not altered by pharmacological or molecular inhibition of mGluR4. Moreover, we showed that ADX88178 activated Gi-independent, alternative signaling pathways as indicated by the absence of pertussis toxin-mediated inhibition and by increased phosphorylation of cAMP-response element binding protein (CREB), an inhibitor of the NFkB pro-inflammatory pathway. ADX88178 also attenuated NFkB activation by reducing the degradation of IkB and the associated translocation of NFkB-p65 to the nucleus. ADX88178 did not exert its anti-inflammatory effects through adenosine receptors, reported as mGluR4 heteromerization partners. Thus, our results indicate that in microglia, putative mGluR4 PAMs activate mGluR4/Gi-independent mechanisms to attenuate pro-inflammatory pathways.
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Affiliation(s)
- Gelareh Abulwerdi
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Bogdan A Stoica
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - David J Loane
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Alan I Faden
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, USA.
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41
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Hoffmann EJ, Ponik SM. Biomechanical Contributions to Macrophage Activation in the Tumor Microenvironment. Front Oncol 2020; 10:787. [PMID: 32509583 PMCID: PMC7251173 DOI: 10.3389/fonc.2020.00787] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/22/2020] [Indexed: 12/15/2022] Open
Abstract
Alterations in extracellular matrix composition and organization are known to promote tumor growth and metastatic progression in breast cancer through interactions with tumor cells as well as stromal cell populations. Macrophages display a spectrum of behaviors from tumor-suppressive to tumor-promoting, and their function is spatially and temporally dependent upon integrated signals from the tumor microenvironment including, but not limited to, cytokines, metabolites, and hypoxia. Through years of investigation, the specific biochemical cues that recruit and activate tumor-promoting macrophage functions within the tumor microenvironment are becoming clear. In contrast, the impact of biomechanical stimuli on macrophage activation has been largely underappreciated, however there is a growing body of evidence that physical cues from the extracellular matrix can influence macrophage migration and behavior. While the complex, heterogeneous nature of the extracellular matrix and the transient nature of macrophage activation make studying macrophages in their native tumor microenvironment challenging, this review highlights the importance of investigating how the extracellular matrix directly and indirectly impacts tumor-associated macrophage activation. Additionally, recent advances in investigating macrophages in the tumor microenvironment and future directions regarding mechano-immunomodulation in cancer will also be discussed.
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Affiliation(s)
- Erica J Hoffmann
- Department of Cell and Regenerative Biology, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, Madison, WI, United States
| | - Suzanne M Ponik
- Department of Cell and Regenerative Biology, Wisconsin Institutes for Medical Research, University of Wisconsin-Madison, Madison, WI, United States.,University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI, United States
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42
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Crimi E, Cirri S, Benincasa G, Napoli C. Epigenetics Mechanisms in Multiorgan Dysfunction Syndrome. Anesth Analg 2020; 129:1422-1432. [PMID: 31397699 DOI: 10.1213/ane.0000000000004331] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Epigenetic mechanisms including deoxyribonucleic acid (DNA) methylation, histone modifications (eg, histone acetylation), and microribonucleic acids (miRNAs) have gained much scientific interest in the last decade as regulators of genes expression and cellular function. Epigenetic control is involved in the modulation of inflammation and immunity, and its dysregulation can contribute to cell damage and organ dysfunction. There is growing evidence that epigenetic changes can contribute to the development of multiorgan dysfunction syndrome (MODS), a leading cause of mortality in the intensive care unit (ICU). DNA hypermethylation, histone deacetylation, and miRNA dysregulation can influence cytokine and immune cell expression and promote endothelial dysfunction, apoptosis, and end-organ injury, contributing to the development of MODS after a critical injury. Epigenetics processes, particularly miRNAs, are emerging as potential biomarkers of severity of disease, organ damage, and prognostic factors in critical illness. Targeting epigenetics modifications can represent a novel therapeutic approach in critical care. Inhibitors of histone deacetylases (HDCAIs) with anti-inflammatory and antiapoptotic activities represent the first class of drugs that reverse epigenetics modifications with human application. Further studies are required to acquire a complete knowledge of epigenetics processes, full understanding of their individual variability, to expand their use as accurate and reliable biomarkers and as safe target to prevent or attenuate MODS in critical disease.
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Affiliation(s)
- Ettore Crimi
- From the University of Central Florida, College of Medicine, Orlando, Florida.,Department of Anesthesiology and Critical Care Medicine, Ocala Health, Ocala, Florida
| | - Silvia Cirri
- Division of Anesthesiology and Intensive Care, Cardiothoracic Department, Istituto Clinico Sant'Ambrogio, Gruppo Ospedaliero San Donato, Milan, Italy
| | - Giuditta Benincasa
- Clinical Department of Internal Medicine and Specialistics, Department of Advanced Clinical and Surgical Sciences, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy
| | - Claudio Napoli
- Clinical Department of Internal Medicine and Specialistics, Department of Advanced Clinical and Surgical Sciences, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.,Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Foundation SDN, Naples, Italy
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43
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Evaluation of human macrophage functional state by voltammetric monitoring of nitrite ions. Anal Bioanal Chem 2020; 412:5097-5104. [PMID: 31993724 DOI: 10.1007/s00216-020-02399-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/28/2019] [Accepted: 01/08/2020] [Indexed: 10/25/2022]
Abstract
The method for assessing the level of nitric oxide (II) (NO) by voltammetric monitoring of nitrite ions was carried out on models M1 and M2 of polarized macrophages induced from monocytes of human peripheral blood with the addition of lipopolysaccharide (LPS) and interleukin-4 (IL-4), respectively. The model of induction of M1 and M2 macrophages was used in the work to achieve the corresponding shifts in the functional status of studied cells. Ethyl nitrite (EtONO) was used as a standard compound of nitrite ions for electrochemical measurements. Electrochemical determination of nitrite ions was performed by anodic linear sweep voltammetry in the first-order derivative mode (ALSV FOD) in Britton-Robinson (BR) buffer with pH 4.02 on carbon ink modified graphite electrode. EtONO calibrations were linear over a concentration range from 2 to 9 μmol L-1 with corresponding regression equation y = 0.768c - 0.048. Limit of detection (LOD) (S/N = 3) was 0.38 μmol L-1. The results of the study showed the fundamental possibility of using voltammetry to assess indirectly the production of nitric oxide by cells in supernatants of the monocytic macrophage lineage. The level of nitric oxide metabolites (nitrite ions) in supernatants was associated with the functional state of macrophages.
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44
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Batista-Gonzalez A, Vidal R, Criollo A, Carreño LJ. New Insights on the Role of Lipid Metabolism in the Metabolic Reprogramming of Macrophages. Front Immunol 2020; 10:2993. [PMID: 31998297 PMCID: PMC6966486 DOI: 10.3389/fimmu.2019.02993] [Citation(s) in RCA: 192] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/05/2019] [Indexed: 12/17/2022] Open
Abstract
Macrophage activation is intimately linked to metabolic reprogramming. Inflammatory (M1) macrophages are able to sustain inflammatory responses and to kill pathogens, mostly by relying on aerobic glycolysis and fatty acid biosynthesis. Glycolysis is a fast way of producing ATP, and fatty acids serve as precursors for the synthesis of inflammatory mediators. On the opposite side, anti-inflammatory (M2) macrophages mediate the resolution of inflammation and tissue repair, switching their metabolism to fatty acid oxidation and oxidative phosphorylation. Over the years, this classical view has been challenged by recent discoveries pointing to a more complex metabolic network during macrophage activation. Lipid metabolism plays a critical role in the activation of both M1 and M2 macrophages. Recent evidence shows that fatty acid oxidation is also essential for inflammasome activation in M1 macrophages, and glycolysis is now known to fuel fatty acid oxidation in M2 macrophages. Ultimately, targeting lipid metabolism in macrophages can improve the outcome of metabolic diseases. Here, we review the main aspects of macrophage immunometabolism from the perspective of the metabolism of lipids. Building a reliable metabolic network during macrophage activation will bring us closer to targeting macrophages for improving human health.
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Affiliation(s)
- Ana Batista-Gonzalez
- Facultad de Odontología, Instituto de Investigación de Ciencias Odontológicas, Universidad de Chile, Santiago, Chile.,Facultad de Ciencias Químicas y Farmacéuticas and Facultad de Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Roberto Vidal
- Millennium Institute on Immunology and Immunotherapy, Universidad de Chile, Santiago, Chile.,Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Alfredo Criollo
- Facultad de Odontología, Instituto de Investigación de Ciencias Odontológicas, Universidad de Chile, Santiago, Chile.,Facultad de Ciencias Químicas y Farmacéuticas and Facultad de Medicina, Advanced Center for Chronic Diseases, Universidad de Chile, Santiago, Chile
| | - Leandro J Carreño
- Millennium Institute on Immunology and Immunotherapy, Universidad de Chile, Santiago, Chile.,Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
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Jain N, Shahal T, Gabrieli T, Gilat N, Torchinsky D, Michaeli Y, Vogel V, Ebenstein Y. Global modulation in DNA epigenetics during pro-inflammatory macrophage activation. Epigenetics 2019; 14:1183-1193. [PMID: 31262215 DOI: 10.1080/15592294.2019.1638700] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
DNA methylation patterns create distinct gene-expression profiles. These patterns are maintained after cell division, thus enabling the differentiation and maintenance of multiple cell types from the same genome sequence. The advantage of this mechanism for transcriptional control is that chemical-encoding allows to rapidly establish new epigenetic patterns 'on-demand' through enzymatic methylation and demethylation of DNA. Here we show that this feature is associated with the fast response of macrophages during their pro-inflammatory activation. By using a combination of mass spectroscopy and single-molecule imaging to quantify global epigenetic changes in the genomes of primary macrophages, we followed three distinct DNA marks (methylated, hydroxymethylated and unmethylated), involved in establishing new DNA methylation patterns during pro-inflammatory activation. The observed epigenetic modulation together with gene-expression data generated for the involved enzymatic machinery may suggest that de-methylation upon LPS-activation starts with oxidation of methylated CpGs, followed by excision-repair of these oxidized bases and their replacement with unmodified cytosine.
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Affiliation(s)
- Nikhil Jain
- Department of Health Sciences and Technology, Laboratory of Applied Mechanobiology, Institute of Translational Medicine, ETH Zurich , Zurich , Switzerland
| | - Tamar Shahal
- Sagol Center for the Epigenetics of Metabolism and Aging, Tel Aviv Sourasky Medical Center , Tel Aviv , Israel.,Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University , Tel Aviv , Israel
| | - Tslil Gabrieli
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University , Tel Aviv , Israel
| | - Noa Gilat
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University , Tel Aviv , Israel
| | - Dmitry Torchinsky
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University , Tel Aviv , Israel
| | - Yael Michaeli
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University , Tel Aviv , Israel
| | - Viola Vogel
- Department of Health Sciences and Technology, Laboratory of Applied Mechanobiology, Institute of Translational Medicine, ETH Zurich , Zurich , Switzerland
| | - Yuval Ebenstein
- Raymond and Beverly Sackler Faculty of Exact Sciences, School of Chemistry, Tel Aviv University , Tel Aviv , Israel
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46
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Rausch M, Dyson PJ, Nowak‐Sliwinska P. Recent Considerations in the Application of RAPTA‐C for Cancer Treatment and Perspectives for Its Combination with Immunotherapies. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900042] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Magdalena Rausch
- Molecular Pharmacology GroupSchool of Pharmaceutical Sciences, Faculty of SciencesUniversity of Lausanne and University of Geneva Rue Michel‐Servet 1, 1211 Geneva 4 Switzerland
| | - Paul J. Dyson
- Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Patrycja Nowak‐Sliwinska
- Molecular Pharmacology GroupSchool of Pharmaceutical Sciences, Faculty of SciencesUniversity of Lausanne and University of Geneva Rue Michel‐Servet 1, 1211 Geneva 4 Switzerland
- Translational Research Centre in Oncohaematology Geneva, Switzerland, 1211 Geneva 4 Switzerland
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47
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Reactive nitrogen species in host-bacterial interactions. Curr Opin Immunol 2019; 60:96-102. [PMID: 31200187 DOI: 10.1016/j.coi.2019.05.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/29/2019] [Accepted: 05/11/2019] [Indexed: 12/11/2022]
Abstract
Reactive nitrogen species play diverse and essential roles in host-pathogen interactions. Here, we review selected recent discoveries regarding nitric oxide (NO) in host defense and the pathogenesis of infection, mechanisms of bacterial NO resistance, production of NO by human macrophages, NO-based antimicrobial therapeutics and NO interactions with the gut microbiota.
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48
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Keuper M. On the role of macrophages in the control of adipocyte energy metabolism. Endocr Connect 2019; 8:R105-R121. [PMID: 31085768 PMCID: PMC6590200 DOI: 10.1530/ec-19-0016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/14/2019] [Indexed: 12/11/2022]
Abstract
The crosstalk between macrophages (MΦ) and adipocytes within white adipose tissue (WAT) influences obesity-associated insulin resistance and other associated metabolic disorders, such as atherosclerosis, hypertension and type 2 diabetes. MΦ infiltration is increased in WAT during obesity, which is linked to decreased mitochondrial content and activity. The mechanistic interplay between MΦ and mitochondrial function of adipocytes is under intense investigation, as MΦ and inflammatory pathways exhibit a pivotal role in the reprogramming of WAT metabolism in physiological responses during cold, fasting and exercise. Thus, the underlying immunometabolic pathways may offer therapeutic targets to correct obesity and metabolic disease. Here, I review the current knowledge on the quantity and the quality of human adipose tissue macrophages (ATMΦ) and their impact on the bioenergetics of human adipocytes. The effects of ATMΦ and their secreted factors on mitochondrial function of white adipocytes are discussed, including recent research on MΦ as part of an immune signaling cascade involved in the 'browning' of WAT, which is defined as the conversion from white, energy-storing adipocytes into brown, energy-dissipating adipocytes.
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Affiliation(s)
- Michaela Keuper
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
- Correspondence should be addressed to M Keuper:
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49
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Somasundaram V, Basudhar D, Bharadwaj G, No JH, Ridnour LA, Cheng RY, Fujita M, Thomas DD, Anderson SK, McVicar DW, Wink DA. Molecular Mechanisms of Nitric Oxide in Cancer Progression, Signal Transduction, and Metabolism. Antioxid Redox Signal 2019; 30:1124-1143. [PMID: 29634348 PMCID: PMC6354612 DOI: 10.1089/ars.2018.7527] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 03/08/2018] [Indexed: 01/03/2023]
Abstract
SIGNIFICANCE Cancer is a complex disease, which not only involves the tumor but its microenvironment comprising different immune cells as well. Nitric oxide (NO) plays specific roles within tumor cells and the microenvironment and determines the rate of cancer progression, therapy efficacy, and patient prognosis. Recent Advances: Key understanding of the processes leading to dysregulated NO flux within the tumor microenvironment over the past decade has provided better understanding of the dichotomous role of NO in cancer and its importance in shaping the immune landscape. It is becoming increasingly evident that nitric oxide synthase 2 (NOS2)-mediated NO/reactive nitrogen oxide species (RNS) are heavily involved in cancer progression and metastasis in different types of tumor. More recent studies have found that NO from NOS2+ macrophages is required for cancer immunotherapy to be effective. CRITICAL ISSUES NO/RNS, unlike other molecules, are unique in their ability to target a plethora of oncogenic pathways during cancer progression. In this review, we subcategorize the different levels of NO produced by cells and shed light on the context-dependent temporal effects on cancer signaling and metabolic shift in the tumor microenvironment. FUTURE DIRECTIONS Understanding the source of NO and its spaciotemporal profile within the tumor microenvironment could help improve efficacy of cancer immunotherapies by improving tumor infiltration of immune cells for better tumor clearance.
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Affiliation(s)
- Veena Somasundaram
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Debashree Basudhar
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Gaurav Bharadwaj
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Jae Hong No
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seoul, Republic of Korea
| | - Lisa A. Ridnour
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Robert Y.S. Cheng
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Mayumi Fujita
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
- Department of Basic Medical Sciences for Radiation Damages, National Institutes of Quantum and Radiological Science and Technology, Chiba, Japan
| | - Douglas D. Thomas
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois
| | - Stephen K. Anderson
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - Daniel W. McVicar
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
| | - David A. Wink
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, Maryland
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50
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Kulinska KI, Billert M, Sawinski K, Czerniak K, Gaca M, Kusza K, Nowak KW, Siemionow M, Billert H. Local anaesthetics upregulate nitric oxide generation in cord blood and adult human neutrophils. Sci Rep 2019; 9:569. [PMID: 30679708 PMCID: PMC6346062 DOI: 10.1038/s41598-018-37090-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 12/03/2018] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide (NO) generation by systemic neonatal neutrophils is not clarified. It is also not known whether local anaesthetics (LAs) transferred to the fetal systemic circulation following maternal epidural blockade may affect this process. In the present study, NO generation was evaluated in neutrophils from cord blood (CB, n = 11) and adult blood (n = 10) following exposure to bupivacaine (0.0005, 0.005, 1 mM), lidocaine (0.002, 0.02, 4 mM) and ropivacaine (0.0007, 0.007, 1.4 mM) using flow cytometry, as well as indirectly by determining nitrite concentrations in cell incubation media. To determine the role of NO synthase (NOS) isoforms in NO generation following exposure to LAs, experiments were repeated in the presence of the NOS inhibitors, NG-nitro-L-arginine methyl ester and aminoguanidine; in addition, the expression of NOS isoforms was analysed. CB neutrophils produced less NO than adult neutrophils. LAs, especially ropivacaine and lidocaine, stimulated neutrophil NO generation, but in CB neutrophils this effect was negligible at clinically relevant drug concentrations. A mechanism involving NOS activity was responsible for the observed phenomena. In conclusion, LAs are able to upregulate neutrophil NO production, but in neonates this effect is likely to be clinically insignificant.
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Affiliation(s)
- Karolina I Kulinska
- Department of Experimental Anaesthesiology, Chair of Anaesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 14, Sw. Marii Magdaleny st., 61-861, Poznan, Poland.
| | - Maria Billert
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, 33, Wolynska st., 60-637, Poznan, Poland
| | - Krzysztof Sawinski
- Department of Haematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, 82/84, Szamarzewskiego st., 60-569, Poznan, Poland
| | - Katarzyna Czerniak
- Department of Experimental Anaesthesiology, Chair of Anaesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 14, Sw. Marii Magdaleny st., 61-861, Poznan, Poland
| | - Michał Gaca
- Clinics of Anaesthesiology in Obstetrics and Gynecology, Chair of Anaesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 33, Polna st., 60-101, Poznan, Poland
| | - Krzysztof Kusza
- Clinics of Anaesthesiology and Intensive Therapy, Chair of Anaesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 49, Przybyszewskiego st., 60-355, Poznan, Poland
| | - Krzysztof W Nowak
- Department of Animal Physiology and Biochemistry, Poznan University of Life Sciences, 33, Wolynska st., 60-637, Poznan, Poland
| | - Maria Siemionow
- University of Illinois at Chicago, Department of Orthopaedics MC 944, 900 South Ashland Avenue, 3356 MCBRB, Chicago, Illinois, 60607, USA
| | - Hanna Billert
- Department of Experimental Anaesthesiology, Chair of Anaesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 14, Sw. Marii Magdaleny st., 61-861, Poznan, Poland.
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