1
|
Tomlinson KL, Riquelme SA, Baskota SU, Drikic M, Monk IR, Stinear TP, Lewis IA, Prince AS. Staphylococcus aureus stimulates neutrophil itaconate production that suppresses the oxidative burst. Cell Rep 2023; 42:112064. [PMID: 36724077 PMCID: PMC10387506 DOI: 10.1016/j.celrep.2023.112064] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/01/2022] [Accepted: 01/18/2023] [Indexed: 02/02/2023] Open
Abstract
Neutrophils are critical in the host defense against Staphylococcus aureus, a major human pathogen. However, even in the setting of a robust neutrophil response, S. aureus can evade immune clearance. Here, we demonstrate that S. aureus impairs neutrophil function by triggering the production of the anti-inflammatory metabolite itaconate. The enzyme that synthesizes itaconate, Irg1, is selectively expressed in neutrophils during S. aureus pneumonia. Itaconate inhibits neutrophil glycolysis and oxidative burst, which impairs survival and bacterial killing. In a murine pneumonia model, neutrophil Irg1 expression protects the lung from excessive inflammation but compromises bacterial clearance. S. aureus is thus able to evade the innate immune response by targeting neutrophil metabolism and inducing the production of the anti-inflammatory metabolite itaconate.
Collapse
Affiliation(s)
- Kira L Tomlinson
- Department of Pediatrics, Columbia University, New York, NY 10032, USA
| | | | | | - Marija Drikic
- Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Ian R Monk
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000, Australia
| | - Timothy P Stinear
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000, Australia
| | - Ian A Lewis
- Department of Biological Sciences, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Alice S Prince
- Department of Pediatrics, Columbia University, New York, NY 10032, USA.
| |
Collapse
|
2
|
Heterologous (Over) Expression of Human SoLute Carrier (SLC) in Yeast: A Well-Recognized Tool for Human Transporter Function/Structure Studies. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081206. [PMID: 36013385 PMCID: PMC9410066 DOI: 10.3390/life12081206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022]
Abstract
For more than 20 years, yeast has been a widely used system for the expression of human membrane transporters. Among them, more than 400 are members of the largest transporter family, the SLC superfamily. SLCs play critical roles in maintaining cellular homeostasis by transporting nutrients, ions, and waste products. Based on their involvement in drug absorption and in several human diseases, they are considered emerging therapeutic targets. Despite their critical role in human health, a large part of SLCs' is 'orphans' for substrate specificity or function. Moreover, very few data are available concerning their 3D structure. On the basis of the human health benefits of filling these knowledge gaps, an understanding of protein expression in systems that allow functional production of these proteins is essential. Among the 500 known yeast species, S. cerevisiae and P. pastoris represent those most employed for this purpose. This review aims to provide a comprehensive state-of-the-art on the attempts of human SLC expression performed by exploiting yeast. The collected data will hopefully be useful for guiding new attempts in SLCs expression with the aim to reveal new fundamental data that could lead to potential effects on human health.
Collapse
|
3
|
Wang W, Zhai D, Bai Y, Xue K, Deng L, Ma L, Du T, Ye Z, Qu D, Xiang A, Chen G, Zhao Y, Wang L, Lu Z. Loss of QKI in macrophage aggravates inflammatory bowel disease through amplified ROS signaling and microbiota disproportion. Cell Death Discov 2021; 7:58. [PMID: 33758177 PMCID: PMC7988119 DOI: 10.1038/s41420-021-00444-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/13/2021] [Accepted: 02/27/2021] [Indexed: 01/20/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a refractory chronic inflammatory illness of the gastrointestinal (GI) tract. Macrophage exerts an important role in IBD development. QKI, as an RNA binding protein, was related with inflammatory responses in bacterial infections by regulating the polarization of macrophages. Therefore, we suspected that QKI-regulated macrophages have the potential to play a certain role in IBD and the underlying mechanism. Our results demonstrated that the mice with macrophage-specific deletion of QKI induced with dextran sodium sulfate (DSS) are more susceptible to IBD development, exhibited a severe leaky gut barrier phenotype and higher intense oxidative stress, which are rescued by treating with butylated hydroxyanisole (BHA), an agonist of NRF2. Mechanically, we observed that Keap1 mRNA in the nucleus was exported to the cytoplasm after LPS stimuli in parallel with QKI reductions, and the removal of QKI by shRNA facilitated Keap1 mRNA nuclear exporting and expression in cytoplasm, consequently NRF2 activation in nucleus was weakened, and led to the impaired antioxidant abilities. In addition, mice models of fecal microbiota transplant (FMT) and the co-culturing of mice epithelia cells with feces derived from the DSS-treated QKI-deficit mice revealed consistently aggravated colitis along with a severe oxidative stress; 16S sequencing analysis substantiated the altered compositions of commensal bacteria too. Overall, the current study represents the first effort to explore the anti-oxidant role of QKI in the intestinal macrophage via post-transcriptional regulation of Keap1 mRNA localization and the relevant NRF2 antioxidant signaling, and the disproportional changes in the microbiota were attributable to the mediation of pathogenic damage in the IBD development of QKI-deficit mice.
Collapse
Affiliation(s)
- Wenwen Wang
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Dongsheng Zhai
- Department of Pharmacology, School of Pharmacy, Air Force Medical University, Xi'an, Shaanxi, China
| | - Yongquan Bai
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Ke Xue
- Department of Dermatology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Lele Deng
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Lirong Ma
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Tianshu Du
- PLA Institute of Orthopaedics, Xijing Hospital, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Zicheng Ye
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Di Qu
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - An Xiang
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Guo Chen
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China
| | - Yi Zhao
- Breast Disease Diagnosis and Treatment Center of Affiliated Hospital of Qinghai University & Affiliated Cancer Hospital of Qinghai University, Xining, Qinghai Province, China.
| | - Li Wang
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China.
| | - Zifan Lu
- PLA Institute of State Key Laboratory of Cancer Biology, Department of Biopharmaceutics, Air Force Medical University, No. 17, Changle West Road, Xincheng District, Xi'an, Shaanxi Province, China.
| |
Collapse
|
4
|
Bizouarn T, Souabni H, Serfaty X, Bouraoui A, Masoud R, Karimi G, Houée-Levin C, Baciou L. A Close-Up View of the Impact of Arachidonic Acid on the Phagocyte NADPH Oxidase. Methods Mol Biol 2019; 1982:75-101. [PMID: 31172467 DOI: 10.1007/978-1-4939-9424-3_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The NADPH oxidase NOX2 complex consists of assembled cytosolic and redox membrane proteins. In mammalian cells, natural arachidonic acid (cis-AA), released by activated phospholipase-A2, plays an important role in the activation of the NADPH oxidase, but the mechanism of action of cis-AA is still a matter of debate. In cell-free systems, cis-AA is commonly used for activation although its structural effects are still unclear. Undoubtedly cis-AA participates in the synergistic multi-partner assembly that can be hardly studied at the molecular level in vivo due to cellular complexity. The capacity of this anionic amphiphilic fatty acid to activate the oxidase is mainly explained by its ability to disrupt intramolecular bonds, mimicking phosphorylation events in cell signaling and therefore allowing protein-protein interactions. Interestingly the geometric isomerism of the fatty acid and its purity are crucial for optimal superoxide production in cell-free assays. Indeed, optimal NADPH oxidase assembly was hampered by the substitution of the cis form by the trans forms of AA isomers (Souabni et al., BBA-Biomembranes 1818:2314-2324, 2012). Structural analysis of the changes induced by these two compounds, by circular dichroism and by biochemical methods, revealed differences in the interaction between subunits. We describe how the specific geometry of AA plays an important role in the activation of the NOX2 complex.
Collapse
Affiliation(s)
- Tania Bizouarn
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Hager Souabni
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Xavier Serfaty
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Aicha Bouraoui
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Rawand Masoud
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Gilda Karimi
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Chantal Houée-Levin
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Laura Baciou
- Laboratoire de Chimie Physique, UMR8000 CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France.
| |
Collapse
|
5
|
Liao YF, Yin S, Chen ZQ, Li F, Zhao B. High glucose promotes tumor cell proliferation and migration in lung adenocarcinoma via the RAGE‑NOXs pathway. Mol Med Rep 2018; 17:8536-8541. [PMID: 29693146 DOI: 10.3892/mmr.2018.8914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/19/2018] [Indexed: 12/13/2022] Open
Abstract
Over the past few decades, it has been demonstrated that hyperglycemia can promote lung carcinoma growth, potentially through significantly increased glucose metabolism; however, the underlying mechanism remains to be fully elucidated. In the present study, treatment with a high concentration of glucose (HG) significantly promoted the proliferation and migration of A549 cells. Receptor for advanced glycation end‑products (RAGE) has previously been demonstrated to be associated with diabetes mellitus and oxidative stress, and nicotinamide adenine dinucleotide phosphate oxidases (NOXs) are considered to be initiating factors of oxidative stress. Therefore, an MTT assay, wound‑healing assay, quantitative polymerase chain reaction and western blotting assays were used to analyze the RAGE‑NOX‑4 pathway and to determine its potential involvement in glycometabolism‑associated tumorigenesis. The present study demonstrated that HG could increase the protein expression of RAGE and NOX‑4, whereas the inhibitor of RAGE (anti‑RAGE antibody) could suppress this effect. Futhermore, the inhibitor of NOX [diphenyl iodonium chloride (DPI)] could reduce the protein expression of RAGE and NOX‑4. Furthermore, inhibition of RAGE led to the downregulation of vascular endothelial growth factor (VEGF) and hypoxia‑inducible factor‑1α (HIF‑1α), thus suggesting that HG may influence angiogenesis and tumor metabolism via the RAGE‑NOXs pathway. The present study also demonstrated that the RAGE‑blocking antibody downregulated NOX‑4 and subsequently reduced the production of downstream inflammatory factors, whereas DPI did not affect the mRNA expression of RAGE but it did reduce the protein level of RAGE and then attenuate the inflammatory response. These results indicated that inhibition of RAGE or NOXs may promote the reduced expression of VEGF and HIF‑1α, and NOXs may be downstream targets of RAGE, thus indicating a HG‑RAGE‑NOXs‑VEGF/HIF‑1α association. Furthermore, the results indicated that HG may serve a role in the development of lung adenocarcinoma, mediated by the RAGE‑oxidative stress pathway; therefore, the regulation of this glucose‑associated pathway may be a promising novel direction for oncotherapy. However, while certain antidiabetic agents have been verified to exert inhibitory effects on tumor growth, they can also have long‑term adverse effects on the body, which may limit the value of these drugs as anticancer treatments. In conclusion, the present study suggested a novel attempt to suppress glucose‑induced tumor growth using a RAGE inhibitor such as soluble RAGE while avoiding the risk of glucose fluctuation.
Collapse
Affiliation(s)
- Yuan-Fan Liao
- Department of Thoracic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Sui Yin
- Department of Thoracic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zi-Qi Chen
- Department of Clinical Medicine, School of Basic Medicine, Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Fan Li
- Department of Thoracic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Bo Zhao
- Department of Thoracic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| |
Collapse
|
6
|
Baciou L, Masoud R, Souabni H, Serfaty X, Karimi G, Bizouarn T, Houée Levin C. Phagocyte NADPH oxidase, oxidative stress and lipids: Anti- or pro ageing? Mech Ageing Dev 2017; 172:30-34. [PMID: 29103982 DOI: 10.1016/j.mad.2017.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/29/2017] [Accepted: 11/01/2017] [Indexed: 11/15/2022]
Abstract
The role of NADPH oxidase in ageing is debated because of the dual roles of free radicals, toxic though necessary. In this paper we summarize some results about two aspects linked to the regulation of the activity of phagocyte NADPH oxidase (Nox2), encountered frequently in elderly people: inflammation and hypercholesterolemia. In the presence of a high amount of reactive oxygen species (ROS) created by itself or by any other source, the enzyme activity is mostly lowered. Oxidation of the membrane and/or of one of the cytosolic partners could be responsible for this loss of activity. However using a cell free system, we had also shown that a low amount of ROS could activate this enzyme. Similarly, cholesterol has a similar dual role, either activating or inhibiting. In in vitro cell free system with neutrophil membranes from healthy donors, the addition, as well as the removal of cholesterol, diminishes the Nox2 activity. The activity of Nox2 is lowered in neutrophils of untreated hypercholesterolemic patients. Finally oxysterols (25-hydroxy-cholesterol or 5α, 6α - epoxy-cholesterol) do not induce effects different from that of non-oxidized cholesterol. These findings are in agreement with the Janus role of NADPH oxidase, the main source of non-mitochondrial ROS.
Collapse
Affiliation(s)
- Laura Baciou
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Rawand Masoud
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Hager Souabni
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Xavier Serfaty
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Gilda Karimi
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Tania Bizouarn
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France
| | - Chantal Houée Levin
- Laboratoire de Chimie Physique, Université Paris Sud, UMR 8000, CNRS, 91405, Orsay Cedex, France.
| |
Collapse
|