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Wang S, Zhou W, Wei Z, Li H, Xiao Y. Solvent-tuned perovskite heterostructures enable visual linoleic acid assay and edible oil species discrimination via wavelength shift. Food Chem 2024; 449:139190. [PMID: 38579653 DOI: 10.1016/j.foodchem.2024.139190] [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: 01/19/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/07/2024]
Abstract
Linoleic acid (LA) detection and edible oils discrimination are essential for food safety. Recently, CsPbBr3@SiO2 heterostructures have been widely applied in edible oil assays, while deep insights into solvent effects on their structure and performance are often overlooked. Based on the suitable polarity and viscosity of cyclohexane, we prepared CsPbBr3@SiO2 Janus nanoparticles (JNPs) with high stability in edible oil and fast halogen-exchange (FHE) efficiency with oleylammonium iodide (OLAI). LA is selectively oxidized by lipoxidase to yield hydroxylated derivative (oxLA) capable of reacting with OLAI, thereby bridging LA content to naked-eye fluorescence color changes through the anti-FHE reaction. The established method for LA in edible oils exhibited consistent results with GC-MS analysis (p > 0.05). Since the LA content difference between edible oils, we further utilized chemometrics to accurately distinguish (100%) the species of edible oils. Overall, such elaborated CsPbBr3@SiO2 JNPs enable a refreshing strategy for edible oil discrimination.
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Affiliation(s)
- Shuo Wang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Wenbin Zhou
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Zhongyu Wei
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Hang Li
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
| | - Yuxiu Xiao
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
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2
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Ma B, Wang D, Chen X, Wang Q, Zhang T, Wen R, Yang M, Li C, Lei C, Wang H. Dietary α-linolenic acid supplementation enhances resistance to Salmonella Typhimurium challenge in chickens by altering the intestinal mucosal barrier integrity and cecal microbes. Microbiol Res 2024; 285:127773. [PMID: 38833830 DOI: 10.1016/j.micres.2024.127773] [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: 04/11/2024] [Revised: 05/07/2024] [Accepted: 05/17/2024] [Indexed: 06/06/2024]
Abstract
Salmonella is an important foodborne pathogen. Given the ban on the use of antibiotics during the egg-laying period in China, finding safe and effective alternatives to antibiotics to reduce Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium) infections in chickens is essential for the prevention and control of this pathogen and the protection of human health. Numerous studies have shown that unsaturated fatty acids have a positive effect on intestinal inflammation and resistance to infection by intestinal pathogens. Here we investigated the protective effect of α-linolenic acid (ALA) against S. Typhimurium infection in chickens and further explored its mechanism of action. We added different proportions of ALA to the feed and observed the effect of ALA on S. Typhimurium colonization using metagenomic sequencing technology and physiological index measurements. The role of gut flora on S. Typhimurium colonization was subsequently verified by fecal microbiota transplantation (FMT). We found that ALA protects chickens from S. Typhimurium infection by reducing intestinal inflammation through remodeling the gut microbiota, up-regulating the expression of ileocecal barrier-related genes, and maintaining the integrity of the intestinal epithelium. Our data suggest that supplementation of feed with ALA may be an effective strategy to alleviate S. Typhimurium infection in chickens.
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Affiliation(s)
- Boheng Ma
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - De Wang
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Xuan Chen
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Qin Wang
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Tiejun Zhang
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Renqiao Wen
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Ming Yang
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Cui Li
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China
| | - Changwei Lei
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China.
| | - Hongning Wang
- College of Life Sciences, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Chengdu, People's Republic of China; Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, People's Republic of China.
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3
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Fan JQ, Hong QM, Liu LS, Chen Q, Chen YH. Study of the antivirus function mediated by STING in Micropterus salmoides. FISH & SHELLFISH IMMUNOLOGY 2024; 149:109528. [PMID: 38570119 DOI: 10.1016/j.fsi.2024.109528] [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: 12/08/2023] [Revised: 03/18/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
Stimulator of interferon genes (STING) has been demonstrated as a critical mediator in the innate immune response to cytosolic DNA and RNA derived from different pathogens. While the role of Micropterus salmoides STING (MsSTING) in largemouth bass virus is still unknown. In this study, RT-qPCR assay and Western-blot assay showed that the expression levels of MsSTING and its downstream genes were up-regulated after LMBV infection. Pull down experiment proved that a small peptide called Fusion peptide (FP) that previously reported to target to marine and human STING as a selective inhibitor also interacted with MsSTING in vitro. Comparing with the RNA-seq of Largemouth bass infected with LMBV singly, 326 genes were significantly up-regulated and 379 genes were significantly down-regulated in the FP plus LMBV group in which Largemouth bass was treatment with FP before LMBV-challenged. KEGG analysis indicated that the differentially expressed genes (DEGs) were mainly related to signaling transduction, infectious disease viral, immune system and endocrine system. Besides, the survival rate of LMBV-infected largemouth bass was highly decreased following FP treatment. Taken together, our study showed that MsSTING played an important role in immune response against LMBV infection.
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Affiliation(s)
- Jin-Quan Fan
- Institute of Modern Aquaculture Science and Engineering (IMASE), Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Qian-Ming Hong
- Institute of Modern Aquaculture Science and Engineering (IMASE), Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Li-Shi Liu
- Institute of Modern Aquaculture Science and Engineering (IMASE), Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Qi Chen
- Institute of Modern Aquaculture Science and Engineering (IMASE), Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Yi-Hong Chen
- Institute of Modern Aquaculture Science and Engineering (IMASE), Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China.
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4
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Gjøen T, Ruyter B, Østbye TK. Effects of eicosapentaneoic acid on innate immune responses in an Atlantic salmon kidney cell line in vitro. PLoS One 2024; 19:e0302286. [PMID: 38805503 PMCID: PMC11132502 DOI: 10.1371/journal.pone.0302286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/02/2024] [Indexed: 05/30/2024] Open
Abstract
Studies of the interplay between metabolism and immunity, known as immunometabolism, is steadily transforming immunological research into new understandings of how environmental cues like diet are affecting innate and adaptive immune responses. The aim of this study was to explore antiviral transcriptomic responses under various levels of polyunsaturated fatty acid. Atlantic salmon kidney cells (ASK cell line) were incubated for one week in different levels of the unsaturated n-3 eicosapentaneoic acid (EPA) resulting in cellular levels ranging from 2-20% of total fatty acid. These cells were then stimulated with the viral mimic and interferon inducer poly I:C (30 ug/ml) for 24 hours before total RNA was isolated and sequenced for transcriptomic analyses. Up to 200 uM EPA had no detrimental effects on cell viability and induced very few transcriptional changes in these cells. However, in combination with poly I:C, our results shows that the level of EPA in the cellular membranes exert profound dose dependent effects of the transcriptional profiles induced by this treatment. Metabolic pathways like autophagy, apelin and VEGF signaling were attenuated by EPA whereas transcripts related to fatty acid metabolism, ferroptosis and the PPAR signaling pathways were upregulated. These results suggests that innate antiviral responses are heavily influenced by the fatty acid profile of salmonid cells and constitute another example of the strong linkage between general metabolic pathways and inflammatory responses.
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Affiliation(s)
- Tor Gjøen
- Department of Pharmacy, Section for Pharmacology and Pharmaceutical Biosciences, University of Oslo, Oslo, Norway
| | - Bente Ruyter
- Nofima (Norwegian Institute of Food, Fisheries and Aquaculture Research), Ås, Norway
| | - Tone Kari Østbye
- Nofima (Norwegian Institute of Food, Fisheries and Aquaculture Research), Ås, Norway
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5
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Shang Q, Xiang W, Wu Y, Lu Y, Li Z, Zheng J, Wang X, Wang X, Song X. Identification and analysis of immunogenicity and immunotherapy efficacy by fatty acid genes: a novel prognostic features of lumbar disc herniation and Mendelian randomization analysis. Int J Neurosci 2024:1-15. [PMID: 38738478 DOI: 10.1080/00207454.2024.2353367] [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: 04/10/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
BACKGROUND Sciatica is a phrase used to describe radiating leg discomfort. The most common cause is lumbar disc herniation (LDH), which is considered to start in the nucleus pulposus. Advancements in lipidomics and metabolomics have unveiled the complex role of fatty acid metabolism (FAM) in both healthy and pathological states. However, the specific roles of fatty acid metabolism-related genes (FAMGs) in shaping therapeutic approaches, especially in LDH, remain largely unexplored and are a subject of ongoing research. METHODS The junction of the weighted correlation network analysis (WGCNA) test with 6 FAMGs enabled the finding of FAMGs. Gene set variation analysis (GSVA) was used to identify the possible biological activities and pathways of FAMGs. LASSO was used to determine diagnostic effectiveness of the four FAMGs in diagnosing LDH. GSE124272, GSE147383, GSE150408, and GSE153761 were utilized to confirm the levels of expression of four FAMGs. RESULTS Four FAMGs were discovered [Acyl-CoA Thioesterase 4 (ACOT4), Cytochrome P450 Family 4 Subfamily A Member 11 (CYP4A11), Acyl-CoA Dehydrogenase Long Chain (ACADL), Enoyl-CoA Hydratase and 3-Hydroxyacyl CoA Dehydrogenase (EHHADH)] For biological function analysis, mhc class ib receptor activity, response to thyroxine, response to l phenylalanine derivative were emphasized. CONCLUSIONS FAMGs can help with prognosis and immunology, and provide evidence for fatty acid metabolism-related targeted therapeutics. In LDH, FAMGs and their interactions with immune cells might be therapeutic targets.
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Affiliation(s)
- Qisong Shang
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
- Department of Spine Surgery, The Third Affiliated Hospital of Shihezi University, Shihezi, Xinjiang, China
| | - Wei Xiang
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yuanyuan Wu
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yun Lu
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Zhe Li
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Junru Zheng
- Department of Spine Surgery, The Third Affiliated Hospital of Shihezi University, Shihezi, Xinjiang, China
| | - Xing Wang
- Department of Spine Surgery, The Third Affiliated Hospital of Shihezi University, Shihezi, Xinjiang, China
| | - Xiaonan Wang
- Department of Spine Surgery, The Third Affiliated Hospital of Shihezi University, Shihezi, Xinjiang, China
| | - Xinghua Song
- Department of Spine Surgery, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
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6
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Kanefsky J, Basse M, Sokei J, di Martino O, Valin L, Jaspers Y, Martinez E, Huhn J, Di Marcantonio D, Magee JA, Goldman AR, Tang HY, Ferraro F, Kemp S, Wiest DL, Sykes SM. Disruption of polyunsaturated fatty acid biosynthesis drives STING-dependent acute myeloid leukemia cell maturation and death. J Biol Chem 2024; 300:107214. [PMID: 38522521 PMCID: PMC11061745 DOI: 10.1016/j.jbc.2024.107214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 02/20/2024] [Accepted: 03/13/2024] [Indexed: 03/26/2024] Open
Abstract
The role of polyunsaturated fatty acid (PUFA) biosynthesis in acute myeloid leukemia (AML) remains largely undefined. A comparative expression analysis of 35 genes encoding fatty acid biosynthesis enzymes showed that fatty acid desaturase 1 (FADS1) was highly expressed across multiple AML subtypes relative to healthy controls and that elevated FADS1 expression correlates with worse overall AML patient survival. Functionally, shRNA-mediated inhibition of FADS1 reduced AML cell growth in vitro and significantly delayed leukemia onset in an AML mouse model. AML cell lines depleted of FADS1 arrested in the G1/S-phase of the cell cycle, acquired characteristics of myeloid maturation and subsequently died. To understand the molecular consequences of FADS1 inhibition, a combination of mass spectrometry-based analysis of complex lipids and gene expression analysis (RNA-seq) was performed. FADS1 inhibition caused AML cells to exhibit significant lipidomic remodeling, including depletion of PUFAs from the phospholipids, phosphatidylserine, and phosphatidylethanolamine. These lipidomic alterations were accompanied by an increase induction of inflammatory and stimulator of interferon genes (STING)-mediated type-1 interferon signaling. Remarkably, genetic deletion of STING largely prevented the AML cell maturation and death phenotypes mediated by FADS1 inhibition. Highlighting the therapeutic implications of these findings, pharmacological blockade of PUFA biosynthesis reduced patient-derived AML cell numbers ex vivo but not that of healthy donor cells. Similarly, STING agonism attenuated patient-derived-AML survival; however, STING activation also reduced healthy granulocyte numbers. Collectively, these data unveil a previously unrecognized importance of PUFA biosynthesis in leukemogenesis and that imbalances in PUFA metabolism can drive STING-mediated AML maturation and death.
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Affiliation(s)
- Joice Kanefsky
- Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania, USA
| | - Mary Basse
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA
| | - Judith Sokei
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA
| | - Orsola di Martino
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA
| | - Liana Valin
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA
| | - Yorrick Jaspers
- Amsterdam University Medical Centers, Amsterdam, North Holland, Netherlands
| | - Esteban Martinez
- Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania, USA
| | - Jacklyn Huhn
- Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania, USA
| | - Daniela Di Marcantonio
- Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania, USA
| | - Jeffrey A Magee
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA
| | - Aaron R Goldman
- Proteomics & Metabolomics Facility, Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Hsin-Yao Tang
- Proteomics & Metabolomics Facility, Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Francesca Ferraro
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA
| | - Stephan Kemp
- Amsterdam University Medical Centers, Amsterdam, North Holland, Netherlands
| | - David L Wiest
- Fox Chase Cancer Center, Temple University Health System, Philadelphia, Pennsylvania, USA.
| | - Stephen M Sykes
- Department of Medicine, School of Medicine, Washington University in Saint Louis, St Louis, Missouri, USA.
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7
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Wei C, Huang Q, Zeng F, Ma L, Bai X, Zhu X, Gao H, Qi X. Cyclic guanosine monophosphate-adenosine monophosphate synthetase/stimulator of interferon genes signaling aggravated corneal allograft rejection through neutrophil extracellular traps. Am J Transplant 2024:S1600-6135(24)00281-8. [PMID: 38648890 DOI: 10.1016/j.ajt.2024.04.010] [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: 08/12/2023] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
The activation of innate immunity following transplantation has been identified as a crucial factor in allograft inflammation and rejection. However, the role of cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)/stimulator of interferon genes (STING) signaling-mediated innate immunity in the pathogenesis of allograft rejection remains unclear. Utilizing a well-established murine model of corneal transplantation, we demonstrated increased expression of cGAS and STING in rejected-corneal allografts compared with syngeneic (Syn) and normal (Nor) corneas, along with significant activation of the cGAS/STING pathway, as evidenced by the enhanced phosphorylation of TANK-binding kinase 1and interferon regulatory factor 3. Pharmacological and genetic inhibition of cGAS/STING signaling markedly delayed corneal transplantation rejection, resulting in prolonged survival time and reduced inflammatory infiltration. Furthermore, we observed an increase in the formation of neutrophil extracellular traps (NETs) in rejected allografts, and the inhibition of NET formation through targeting peptidylarginine deiminase 4 and DNase I treatment significantly alleviated immune rejection and reduced cGAS/STING signaling activity. Conversely, subconjunctival injection of NETs accelerated corneal transplantation rejection and enhanced the activation of the cGAS/STING pathway. Collectively, these findings demonstrate that NETs contribute to the exacerbation of allograft rejection via cGAS/STING signaling, highlighting the targeting of the NETs/cGAS/STING signaling pathway as a potential strategy for prolonging allograft survival.
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Affiliation(s)
- Chao Wei
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Shandong First Medical University, Qingdao, Shandong, China
| | - Qing Huang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Shandong First Medical University, Qingdao, Shandong, China
| | - Fanxing Zeng
- Refractive Surgery Center, Guangzhou Huangpu Aier Eye Hospital, Guangzhou, Guangdong, China
| | - Li Ma
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Shandong First Medical University, Qingdao, Shandong, China
| | - Xiaofei Bai
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Shandong First Medical University, Qingdao, Shandong, China
| | - Xuejing Zhu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Medical Department of Qingdao University, Qingdao, Shandong, China
| | - Hua Gao
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Hospital of Shandong First Medical University (Shandong Eye Hospital), Eye Institute of Shandong First Medical University, School of Ophthalmology, Shandong First Medical University, Jinan, Shandong, China
| | - Xiaolin Qi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Medical Department of Qingdao University, Qingdao, Shandong, China.
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8
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Das UN. Can essential fatty acids (EFAs) prevent and ameliorate post-COVID-19 long haul manifestations? Lipids Health Dis 2024; 23:112. [PMID: 38641607 PMCID: PMC11027247 DOI: 10.1186/s12944-024-02090-4] [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: 01/17/2024] [Accepted: 03/25/2024] [Indexed: 04/21/2024] Open
Abstract
It is hypothesized that COVID-19, post-COVID and post-mRNA COVID-19 (and other related) vaccine manifestations including "long haul syndrome" are due to deficiency of essential fatty acids (EFAs) and dysregulation of their metabolism. This proposal is based on the observation that EFAs and their metabolites can modulate the swift immunostimulatory response of SARS-CoV-2 and similar enveloped viruses, suppress inappropriate cytokine release, possess cytoprotective action, modulate serotonin and bradykinin production and other neurotransmitters, inhibit NF-kB activation, regulate cGAS-STING pathway, modulate gut microbiota, inhibit platelet activation, regulate macrophage and leukocyte function, enhance wound healing and facilitate tissue regeneration and restore homeostasis. This implies that administration of EFAs could be of benefit in the prevention and management of COVID-19 and its associated complications.
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Affiliation(s)
- Undurti N Das
- UND Life Sciences, 2221 NW 5th St, Battle ground, WA, 98604, USA.
- Department of Biotechnology, Indian Institute of Technology-Hyderabad, Sangareddy, Telangana, India.
- Department of Immunology and Rheumatology, Arete Hospitals, Gachibowli, Hyderabad, 4500032, India.
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9
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Xie J, Cheng J, Ko H, Tang Y. Cytosolic DNA sensors in neurodegenerative diseases: from physiological defenders to pathological culprits. EMBO Mol Med 2024; 16:678-699. [PMID: 38467840 PMCID: PMC11018843 DOI: 10.1038/s44321-024-00046-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/13/2024] Open
Abstract
Cytosolic DNA sensors are a group of pattern recognition receptors (PRRs) that vary in structures, molecular mechanisms, and origins but share a common function to detect intracellular microbial DNA and trigger the innate immune response like type 1 interferon production and autophagy. Cytosolic DNA sensors have been proven as indispensable defenders against the invasion of many pathogens; however, growing evidence shows that self-DNA misplacement to cytoplasm also frequently occurs in non-infectious circumstances. Accumulation of cytosolic DNA causes improper activation of cytosolic DNA sensors and triggers an abnormal autoimmune response, that significantly promotes pathological progression. Neurodegenerative diseases are a group of neurological disorders characterized by neuron loss and still lack effective treatments due to a limited understanding of pathogenesis. But current research has found a solid relationship between neurodegenerative diseases and cytosolic DNA sensing pathways. This review summarizes profiles of several major cytosolic DNA sensors and their common adaptor protein STING. It also discusses both the beneficial and detrimental roles of cytosolic DNA sensors in the genesis and progression of neurodegenerative diseases.
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Affiliation(s)
- Jiatian Xie
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Brain Research Center, Sun Yat-sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-sen Memorial Hospital, Foshan, 528200, China
| | - Jinping Cheng
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
- Brain Research Center, Sun Yat-sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-sen Memorial Hospital, Foshan, 528200, China
| | - Ho Ko
- Division of Neurology, Department of Medicine and Therapeutics & Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Yamei Tang
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China.
- Brain Research Center, Sun Yat-sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, 510120, China.
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-sen Memorial Hospital, Foshan, 528200, China.
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10
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Zhang BC, Laursen MF, Hu L, Hazrati H, Narita R, Jensen LS, Hansen AS, Huang J, Zhang Y, Ding X, Muyesier M, Nilsson E, Banasik A, Zeiler C, Mogensen TH, Etzerodt A, Agger R, Johannsen M, Kofod-Olsen E, Paludan SR, Jakobsen MR. Cholesterol-binding motifs in STING that control endoplasmic reticulum retention mediate anti-tumoral activity of cholesterol-lowering compounds. Nat Commun 2024; 15:2760. [PMID: 38553448 PMCID: PMC10980718 DOI: 10.1038/s41467-024-47046-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024] Open
Abstract
The cGAS-STING pathway plays a crucial role in anti-tumoral responses by activating inflammation and reprogramming the tumour microenvironment. Upon activation, STING traffics from the endoplasmic reticulum (ER) to Golgi, allowing signalling complex assembly and induction of interferon and inflammatory cytokines. Here we report that cGAMP stimulation leads to a transient decline in ER cholesterol levels, mediated by Sterol O-Acyltransferase 1-dependent cholesterol esterification. This facilitates ER membrane curvature and STING trafficking to Golgi. Notably, we identify two cholesterol-binding motifs in STING and confirm their contribution to ER-retention of STING. Consequently, depletion of intracellular cholesterol levels enhances STING pathway activation upon cGAMP stimulation. In a preclinical tumour model, intratumorally administered cholesterol depletion therapy potentiated STING-dependent anti-tumoral responses, which, in combination with anti-PD-1 antibodies, promoted tumour remission. Collectively, we demonstrate that ER cholesterol sets a threshold for STING signalling through cholesterol-binding motifs in STING and we propose that this could be exploited for cancer immunotherapy.
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Affiliation(s)
- Bao-Cun Zhang
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark.
| | - Marlene F Laursen
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Lili Hu
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Hossein Hazrati
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
- Department of Forensic Medicine, Aarhus University, DK-8200, Aarhus N, Denmark
| | - Ryo Narita
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Lea S Jensen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Aida S Hansen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Jinrong Huang
- Department of Biology, University of Copenhagen, DK-2100, Copenhagen Ø, Denmark
| | - Yan Zhang
- Department of Engineering, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Xiangning Ding
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | | | - Emil Nilsson
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Agnieszka Banasik
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Christina Zeiler
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Trine H Mogensen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, DK-8200, Aarhus N, Denmark
| | - Anders Etzerodt
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark
| | - Ralf Agger
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Mogens Johannsen
- Department of Forensic Medicine, Aarhus University, DK-8200, Aarhus N, Denmark
| | - Emil Kofod-Olsen
- Department of Health Science and Technology, Aalborg University, DK-9220, Aalborg, Denmark
| | - Søren R Paludan
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark.
| | - Martin R Jakobsen
- Department of Biomedicine, Aarhus University, DK-8000, Aarhus C, Denmark.
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11
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Malemnganba T, Rattan A, Prajapati VK. Decoding macrophage immunometabolism in human viral infection. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2024; 140:493-523. [PMID: 38762278 DOI: 10.1016/bs.apcsb.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
Immune-metabolic interactions play a pivotal role in both host defense and susceptibility to various diseases. Immunometabolism, an interdisciplinary field, seeks to elucidate how metabolic processes impact the immune system. In the context of viral infections, macrophages are often exploited by viruses for their replication and propagation. These infections trigger significant metabolic reprogramming within macrophages and polarization of distinct M1 and M2 phenotypes. This metabolic reprogramming involves alterations in standard- pathways such as the Krebs cycle, glycolysis, lipid metabolism, the pentose phosphate pathway, and amino acid metabolism. Disruptions in the balance of key intermediates like spermidine, itaconate, and citrate within these pathways contribute to the severity of viral diseases. In this chapter, we describe the manipulation of metabolic pathways by viruses and how they crosstalk between signaling pathways to evade the immune system. This intricate interplay often involves the upregulation or downregulation of specific metabolites, making these molecules potential biomarkers for diseases like HIV, HCV, and SARS-CoV. Techniques such as Nuclear Magnetic Resonance (NMR) and Mass Spectrometry, are the evaluative ways to analyze these metabolites. Considering the importance of macrophages in the inflammatory response, addressing their metabolome holds great promise for the creating future therapeutic targets aimed at combating a wide spectrum of viral infections.
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Affiliation(s)
- Takhellambam Malemnganba
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi, India
| | - Aditi Rattan
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi, India
| | - Vijay Kumar Prajapati
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi, India.
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12
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Castellanos-Perilla N, Borda MG, Aarsland D, Barreto GE. An analysis of omega-3 clinical trials and a call for personalized supplementation for dementia prevention. Expert Rev Neurother 2024; 24:313-324. [PMID: 38379273 PMCID: PMC11090157 DOI: 10.1080/14737175.2024.2313547] [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: 05/25/2023] [Accepted: 01/29/2024] [Indexed: 02/22/2024]
Abstract
INTRODUCTION Targeted interventions are needed to delay or prevent the onset of neurodegenerative diseases. Poor dietary habits are associated with cognitive decline, highlighting the benefits of a healthy diet with fish and polyunsaturated fatty acids (PUFAs). Intake of omega-3 PUFAs docosahexaenoic acid (DHA), α-linolenic acid (ALA) and eicosapentaenoic acid (EPA) is linked with healthy aging, cardiovascular benefits, and reduced risk of Alzheimer's disease. Although omega-3 has health benefits, its intake is often inadequate and insufficient in modern diets. Although fish oil supplements offer an alternative source, inconsistent results from clinical trials raise questions about the factors determining their success. AREAS COVERED In this this review, the authors discuss the aforementioned determining factors and highlight strategies that could enhance the effectiveness of omega-3 PUFAs interventions for dementia and cognitive decline. Moreover, the authors provide suggestions for potential future research. EXPERT OPINION Factors such as diet, lifestyle, and genetic predisposition can all influence the effectiveness of omega-3 supplementation. When implementing clinical trials, it is crucial to consider these factors and recognize their potential impact on the interpretation of results. It is important to study each variable independently and the interactions between them.
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Affiliation(s)
- Nicolás Castellanos-Perilla
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway
- Semillero de Neurociencias y Envejecimiento, Ageing Institute, Medical School, Pontificia Universidad Javeriana, Bogotá, Colombia
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Miguel Germán Borda
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway
- Semillero de Neurociencias y Envejecimiento, Ageing Institute, Medical School, Pontificia Universidad Javeriana, Bogotá, Colombia
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Dag Aarsland
- Centre for Age-Related Medicine (SESAM), Stavanger University Hospital, Stavanger, Norway
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, UK
| | - George E. Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland
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13
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He X, Wedn A, Wang J, Gu Y, Liu H, Zhang J, Lin Z, Zhou R, Pang X, Cui Y. IUPHAR ECR review: The cGAS-STING pathway: Novel functions beyond innate immune and emerging therapeutic opportunities. Pharmacol Res 2024; 201:107063. [PMID: 38216006 DOI: 10.1016/j.phrs.2024.107063] [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: 12/07/2023] [Revised: 12/26/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
Stimulator of interferon genes (STING) is a crucial innate immune sensor responsible for distinguishing pathogens and cytosolic DNA, mediating innate immune signaling pathways to defend the host. Recent studies have revealed additional regulatory functions of STING beyond its innate immune-related activities, including the regulation of cellular metabolism, DNA repair, cellular senescence, autophagy and various cell deaths. These findings highlight the broader implications of STING in cellular physiology beyond its role in innate immunity. Currently, approximately 10 STING agonists have entered the clinical stage. Unlike inhibitors, which have a maximum inhibition limit, agonists have the potential for infinite amplification. STING signaling is a complex process that requires precise regulation of STING to ensure balanced immune responses and prevent detrimental autoinflammation. Recent research on the structural mechanism of STING autoinhibition and its negative regulation by adaptor protein complex 1 (AP-1) provides valuable insights into its different effects under physiological and pathological conditions, offering a new perspective for developing immune regulatory drugs. Herein, we present a comprehensive overview of the regulatory functions and molecular mechanisms of STING beyond innate immune regulation, along with updated details of its structural mechanisms. We discuss the implications of these complex regulations in various diseases, emphasizing the importance and feasibility of targeting the immunity-dependent or immunity-independent functions of STING. Moreover, we highlight the current trend in drug development and key points for clinical research, basic research, and translational research related to STING.
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Affiliation(s)
- Xu He
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China
| | - Abdalla Wedn
- School of Medicine, University of Pittsburgh, 5051 Centre Avenue, Pittsburgh, PA, USA
| | - Jian Wang
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yanlun Gu
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, Beijing 100191, China
| | - Hongjin Liu
- Department of General Surgery, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China
| | - Juqi Zhang
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China
| | - Zhiqiang Lin
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing 100191, China
| | - Renpeng Zhou
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Anhui 230601, China; Department of Orthopedics and Rehabilitation, Yale University School of Medicine, New Haven CT06519, USA.
| | - Xiaocong Pang
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China.
| | - Yimin Cui
- Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, Beijing 100191, China; Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, Beijing 100034, China.
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14
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Luo Y, Chang L, Ji Y, Liang T. ER: a critical hub for STING signaling regulation. Trends Cell Biol 2024:S0962-8924(24)00029-1. [PMID: 38423853 DOI: 10.1016/j.tcb.2024.02.006] [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: 10/18/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 03/02/2024]
Abstract
The Stimulator of Interferon Genes (STING) has a crucial role in mediating the immune response against cytosolic double-stranded DNA (dsDNA) and its activation is critically involved in various diseases. STING is synthesized, modified, and resides in the endoplasmic reticulum (ER), and its ER exit is intimately connected with its signaling. The ER, primarily known for its roles in protein folding, lipid synthesis, and calcium storage, has been identified as a pivotal platform for the regulation of a wide range of STING functions. In this review, we discuss the emerging factors that regulate STING in the ER and examine the interplay between STING signaling and ER pathways, highlighting the impacts of such regulations on immune responses and their potential implications in STING-related disorders.
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Affiliation(s)
- Yuan Luo
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; MOE Joint International Research Laboratory of Pancreatic Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lei Chang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; MOE Joint International Research Laboratory of Pancreatic Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yewei Ji
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; MOE Joint International Research Laboratory of Pancreatic Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Tingbo Liang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; MOE Joint International Research Laboratory of Pancreatic Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Cancer Center, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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15
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Hong Z, Chen S, Sun J, Cheng D, Guo H, Mei J, Zhang X, Maimaiti M, Hao H, Cao P, Hu H, Wang C. STING signaling in islet macrophages impairs insulin secretion in obesity. SCIENCE CHINA. LIFE SCIENCES 2024; 67:345-359. [PMID: 37906411 DOI: 10.1007/s11427-022-2371-9] [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: 03/28/2023] [Accepted: 05/17/2023] [Indexed: 11/02/2023]
Abstract
The innate immune regulator stimulator of interferon genes (STING) mediates self-DNA sensing and leads to the induction of type I interferons and inflammatory cytokines, which promotes the progression of various inflammatory and autoimmune diseases. Innate immune system plays a critical role in regulating obesity-induced islet dysfunction, whereas the potential effect of STING signaling is not fully understood. Here, we demonstrate that STING is mainly expressed and activated in islet macrophages upon high-fat diet (HFD) feeding. Sting-/- alleviates HFD-induced islet inflammation by inhibiting the expression of pro-inflammatory cytokines and the infiltration of macrophages. Mechanically, palmitic acid incubation promotes mitochondrial DNA leakage into the cytosol and subsequently activates STING pathway in macrophages. Additionally, STING activation in macrophages impairs glucose-stimulated insulin secretion by mediating the engulfment of β cell insulin secretory granules. Pharmacologically inhibiting STING activation enhances insulin secretion to control hyperglycemia. Together, our results reveal a regulatory mechanism in controlling the islet inflammation and insulin secretion in diet--induced obesity and suggest that selective blocking of the STING activation may be a promising strategy for treating type 2 diabetes.
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Affiliation(s)
- Ze Hong
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Saihua Chen
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Jing Sun
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Dan Cheng
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Hanli Guo
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Jiahao Mei
- School of Life Sciences, Westlake University, Hangzhou, 310012, China
| | - Xiang Zhang
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Munire Maimaiti
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China
| | - Peng Cao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Haiyang Hu
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China.
| | - Chen Wang
- State Key Laboratory of Natural Medicines, Department of Life Science and Technology, China Pharmaceutical University, Nanjing, 211198, China.
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16
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Bai XC, Zhang X. Applications of cryo-EM in drug development for STING. Curr Opin Struct Biol 2024; 84:102767. [PMID: 38183862 DOI: 10.1016/j.sbi.2023.102767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/08/2024]
Abstract
STING is a critical adaptor protein in the cGAS-mediated DNA-sensing innate immune pathway. Binding of the second messenger cGAMP generated by cGAS to STING induces the high-order oligomerization and activation of the STING dimer. STING is a promising target for diseases associated with the cGAS/STING pathway such as cancer and autoimmune diseases. Recent applications of cryo-EM to STING have led to exciting progress in the understanding of its regulatory mechanism. Cryo-EM structures of STING bound to either cGAMP mimetics or novel small molecule ligands not only revealed the action mechanisms of these ligands but also suggested new ways to modulate the activity of STING for therapeutic purposes. Some of these recent studies are highlighted here.
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Affiliation(s)
- Xiao-Chen Bai
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Xuewu Zhang
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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17
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Zou S, Wang B, Yi K, Su D, Chen Y, Li N, Geng Q. The critical roles of STING in mitochondrial homeostasis. Biochem Pharmacol 2024; 220:115938. [PMID: 38086488 DOI: 10.1016/j.bcp.2023.115938] [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: 08/29/2023] [Revised: 11/18/2023] [Accepted: 11/21/2023] [Indexed: 12/20/2023]
Abstract
The stimulator of interferon genes (STING) is a crucial signaling hub in the immune system's antiviral and antimicrobial defense by detecting exogenous and endogenous DNA. The multifaceted functions of STING have been uncovered gradually during past decades, including homeostasis maintenance and overfull immunity or inflammation induction. However, the subcellular regulation of STING and mitochondria is poorly understood. The main functions of STING are outlined in this review. Moreover, we discuss how mitochondria and STING interact through multiple mechanisms, including the release of mitochondrial DNA (mtDNA), modulation of mitochondria-associated membrane (MAM) and mitochondrial dynamics, alterations in mitochondrial metabolism, regulation of reactive oxygen species (ROS) production, and mitochondria-related cell death. Finally, we discuss how STING is crucial to disease development, providing a novel perspective on its role in cellular physiology and pathology.
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Affiliation(s)
- Shishi Zou
- Department of Thoracic Surgery, Wuhan University Renmin Hospital, 430060, China
| | - Bo Wang
- Department of Thoracic Surgery, Wuhan University Renmin Hospital, 430060, China
| | - Ke Yi
- Department of Thoracic Surgery, Wuhan University Renmin Hospital, 430060, China
| | - Dandan Su
- Department of Neurology, Wuhan University Renmin Hospital, 430060, China
| | - Yukai Chen
- Department of Oncology, Wuhan University Renmin Hospital, 430060, China
| | - Ning Li
- Department of Thoracic Surgery, Wuhan University Renmin Hospital, 430060, China.
| | - Qing Geng
- Department of Thoracic Surgery, Wuhan University Renmin Hospital, 430060, China.
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18
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Thomsen MM, Skouboe MK, Møhlenberg M, Zhao J, de Keukeleere K, Heinz JL, Werner M, Hollensen AK, Lønskov J, Nielsen I, Carter-Timofte ME, Zhang B, Mikkelsen JG, Fisker N, Paludan SR, Assing K, Mogensen TH. Impaired STING Activation Due to a Variant in the E3 Ubiquitin Ligase AMFR in a Patient with Severe VZV Infection and Hemophagocytic Lymphohistiocytosis. J Clin Immunol 2024; 44:56. [PMID: 38277122 PMCID: PMC10817851 DOI: 10.1007/s10875-024-01653-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 01/06/2024] [Indexed: 01/27/2024]
Abstract
Varicella zoster virus (VZV) is a neurotropic alphaherpesvirus exclusively infecting humans, causing two distinct pathologies: varicella (chickenpox) upon primary infection and herpes zoster (shingles) following reactivation. In susceptible individuals, VZV can give rise to more severe clinical manifestations, including disseminated infection, pneumonitis, encephalitis, and vasculopathy with stroke. Here, we describe a 3-year-old boy in whom varicella followed a complicated course with thrombocytopenia, hemorrhagic and necrotic lesions, pneumonitis, and intermittent encephalopathy. Hemophagocytic lymphohistiocytosis (HLH) was strongly suspected and as the condition deteriorated, HLH therapy was initiated. Although the clinical condition improved, longstanding hemophagocytosis followed despite therapy. We found that the patient carries a rare monoallelic variant in autocrine motility factor receptor (AMFR), encoding a ubiquitin ligase involved in innate cytosolic DNA sensing and interferon (IFN) production through the cyclic GMP-AMP synthase-stimulator of IFN genes (cGAS-STING) pathway. Peripheral blood mononuclear cells (PBMCs) from the patient exhibited impaired signaling downstream of STING in response dsDNA and 2'3'-cGAMP, agonists of cGAS and STING, respectively, and fibroblasts from the patient showed impaired type I IFN responses and significantly increased VZV replication. Overexpression of the variant AMFR R594C resulted in decreased K27-linked STING ubiquitination compared to WT AMFR. Moreover, ImageStream technology revealed reduced STING trafficking from ER to Golgi in cells expressing the patient AMFR R594C variant. This was supported by a dose-dependent dominant negative effect of expression of the patient AMFR variant as measured by IFN-β reporter gene assay. Finally, lentiviral transduction with WT AMFR partially reconstituted 2'3'-cGAMP-induced STING-mediated signaling and ISG expression in patient PBMCs. This work links defective AMFR-STING signaling to severe VZV disease and hyperinflammation and suggests a direct role for cGAS-STING in the control of viral infections in humans. In conclusion, we describe a novel genetic etiology of severe VZV disease in childhood, also representing the first inborn error of immunity related to a defect in the cGAS-STING pathway.
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Affiliation(s)
- Michelle Mølgaard Thomsen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Morten Kelder Skouboe
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Michelle Møhlenberg
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Jian Zhao
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Kerstin de Keukeleere
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Johanna Laura Heinz
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Marvin Werner
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Anne Kruse Hollensen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Jonas Lønskov
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Ian Nielsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Baocun Zhang
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Niels Fisker
- Department of Pediatrics, Odense University Hospital, Odense, Denmark
| | - Søren R Paludan
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Kristian Assing
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - Trine H Mogensen
- Department of Infectious Diseases, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus, Denmark.
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.
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19
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Ma Y, Qi Y, Zhou Z, Yan Y, Chang J, Zhu X, Han J, Wu H, Tao Y, Fan F. Shenqi Fuzheng injection modulates tumor fatty acid metabolism to downregulate MDSCs infiltration, enhancing PD-L1 antibody inhibition of intracranial growth in Melanoma. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155171. [PMID: 37925891 DOI: 10.1016/j.phymed.2023.155171] [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: 08/22/2023] [Revised: 10/20/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Addressing brain metastases in cancer presents substantial challenges due to limited therapeutic options and high mortality rates. In clinical practice, the amalgamation of traditional Chinese medicine with other treatment modalities has exhibited noteworthy efficacy in managing disease progression and enhancing quality of life. OBJECTIVE To substantiate the regulatory effects of Shenqi Fuzheng Injection (SFI) on the microenvironment of melanoma brain metastases and appraise whether SFI augments the anti-tumour effects of immune checkpoint inhibitors, with a specific focus on investigating the mechanisms underlying SFI's actions. METHODS Initially, we established a B16-F10 brain transplant tumour model in C57BL/6 mice using a stereotaxic apparatus. The efficacy of the drug was evaluated through in vivo imaging technology, HE staining, and immunofluorescence. Mass Cytometry (CyTOF) and flow cytometry were employed to analyse the impact of SFI on immune cell subpopulations in the tumour microenvironment. Subsequently, transcriptome sequencing and metabolomics were utilised to examine the effects of SFI on melanoma-related genes and metabolism. Molecular docking, Western Blot, and ELISA assays were conducted to investigate the targets of SFI in intervening in melanoma fatty acid metabolism. Finally, the anti-tumour effects of SFI in combination with immune checkpoint inhibitors were scrutinised in the brain transplant tumour model. RESULTS The pharmacological findings demonstrated that SFI inhibits the growth of melanoma brain transplant tumours in a dose-dependent manner. CyTOF, flow cytometry, and immunofluorescence results revealed that SFI significantly diminishes the levels of Myeloid-Derived Suppressor Cells (MDSCs) and Regulatory T cells (Tregs) in the tumour microenvironment while enhancing the levels of CD8+T and CD4+ T cells. Subsequently, transcriptomic and metabolomic findings, both in vitro and in vivo, indicate that SFI significantly inhibits the arachidonic acid metabolism process in melanoma cells. Molecular docking and biological experiments showed that SFI inhibits the expression of D6D and the activity of COX-2, leading to a reduction in downstream PGE2 production. Lastly, SFI significantly enhances the anti-tumour effects of PD-L1 antibody against intracranial melanoma. CONCLUSION SFI improves the tumour immune microenvironment in melanoma by intervening in fatty acid metabolism, thereby reducing levels of MDSCs and Tregs while increasing levels of CD8+ T and CD4+ T cells. Ultimately, this augmentation leads to enhanced anti-tumour effects of the immune checkpoint inhibitor PD-L1 antibody.
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Affiliation(s)
- Yue Ma
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Yanan Qi
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Zhihua Zhou
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Yuanyuan Yan
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Jingwen Chang
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Xinyi Zhu
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Jingjing Han
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China
| | - Hongyan Wu
- Institute of Biomedical Technology, Jiangsu Vocational College of Medicine, 283 South Jiefang Road, Yancheng, Jiangsu 224005, China.
| | - Yu Tao
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China.
| | - Fangtian Fan
- School of Pharmacy, Bengbu Medical College, Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China.
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20
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Ma X, Xin D, She R, Liu D, Ge J, Mei Z. Novel insight into cGAS-STING pathway in ischemic stroke: from pre- to post-disease. Front Immunol 2023; 14:1275408. [PMID: 37915571 PMCID: PMC10616885 DOI: 10.3389/fimmu.2023.1275408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/04/2023] [Indexed: 11/03/2023] Open
Abstract
Ischemic stroke, a primary cause of disability and the second leading cause of mortality, has emerged as an urgent public health issue. Growing evidence suggests that the Cyclic GMP-AMP synthase (cGAS)- Stimulator of interferon genes (STING) pathway, a component of innate immunity, is closely associated with microglia activation, neuroinflammation, and regulated cell death in ischemic stroke. However, the mechanisms underlying this pathway remain inadequately understood. This article comprehensively reviews the existing literature on the cGAS-STING pathway and its multifaceted relationship with ischemic stroke. Initially, it examines how various risk factors and pre-disease mechanisms such as metabolic dysfunction and senescence (e.g., hypertension, hyperglycemia, hyperlipidemia) affect the cGAS-STING pathway in relation to ischemic stroke. Subsequently, we explore in depth the potential pathophysiological relationship between this pathway and oxidative stress, endoplasmic reticulum stress, neuroinflammation as well as regulated cell death including ferroptosis and PANoptosis following cerebral ischemia injury. Finally, it suggests that intervention targeting the cGAS-STING pathway may serve as promising therapeutic strategies for addressing neuroinflammation associated with ischemic stroke. Taken together, this review concludes that targeting the microglia cGAS-STING pathway may shed light on the exploration of new therapeutic strategies against ischemic stroke.
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Affiliation(s)
- Xiaoqi Ma
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Dan Xin
- Institute of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ruining She
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Danhong Liu
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Jinwen Ge
- Hunan Academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Zhigang Mei
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
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21
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Cui W, Zhou H, Zhang J, Zhang J, Wu D, Rong Y, Liu F, Liu J, Liu H, Wei B, Tang Y, Liao X, Xu X. Hepatoprotective effect of Artemisia Argyi essential oil on bisphenol A-induced hepatotoxicity via inhibition of ferroptosis in mice. ENVIRONMENTAL TOXICOLOGY 2023; 38:2416-2428. [PMID: 37347548 DOI: 10.1002/tox.23877] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/19/2023] [Accepted: 06/11/2023] [Indexed: 06/24/2023]
Abstract
The environmental pollutant bisphenol A (BPA), used in the manufacture of plastic packaging materials for various diets, is widely distributed in the environment and causes severe hepatotoxicity by inducing oxidative stress. Artemisia argyi essential oil (AAEO), a volatile oil component isolated from Artemisia argyi H.Lév. & Vaniot, has pharmacological effects, especially for hepatoprotective actions. However, the potential effect of AAEO in BPA induced hepatotoxicity has not been characterized. First, we analyzed the chemical composition in AAEO by gas chromatography-mass spectrometry. Herein, we investigated the effect of AAEO on hepatic metabolic changes in mice exposed to BPA. Results showed that compared with the BPA group, AAEO could reduce the level of liver function enzymes in BPA mice serum, and ameliorate hepatic lesions and fibrosis. Additionally, 20 differential metabolites screened by metabolomics were mainly involved in the reprogramming of glutathione metabolism, purine metabolism, and polyunsaturated fatty acid synthesis. Moreover, AAEO could reduce hepatic ferroptosis induced by BPA, as demonstrated by reducing xanthine oxidase activity, up-regulating the activities of glutathione peroxidase 4 (GPX4), superoxide dismutase, and catalase and the expression of SLC7A11 to promote the glutathione synthetic, while inhibiting transferrin receptor 1 (TFR1) expression to reduce the accumulation of Fe2+ in cells. Therefore, our study identified AAEO as a hepatic protectant against BPA-induced hepatotoxicity by reversing the occurrence of ferroptosis.
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Affiliation(s)
- Weiqi Cui
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Hui Zhou
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jingxian Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Junwei Zhang
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Deqiao Wu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Ying Rong
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Fanglin Liu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Junhui Liu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Haiyan Liu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Bo Wei
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Youcai Tang
- Henan Joint International Research Laboratory of Chronic Liver Injury, Henan Key Laboratory of Rehabilitation Medicine, Department of Pediatrics, the Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Xinglin Liao
- Nanyang Lanhaisenyuan Medical Technology Ltd, Co, Nanyang, China
| | - Xia Xu
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
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22
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Turtoi E, Jeudy J, Valette G, Enjalbal C, Vila IK, Laguette N, Turtoi A. Multiplexed targeted analysis of polyunsaturated fatty acids and oxylipins using liquid chromatography-tandem mass spectrometry. STAR Protoc 2023; 4:102226. [PMID: 37597187 PMCID: PMC10462884 DOI: 10.1016/j.xpro.2023.102226] [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: 07/11/2022] [Revised: 10/18/2022] [Accepted: 03/15/2023] [Indexed: 08/21/2023] Open
Abstract
Polyunsaturated fatty acids (PUFAs) and their oxidized products (oxylipins) are important mediators in intra- and extra-cellular signaling. We describe here the simultaneous quantification of 163 PUFAs and oxylipins using liquid chromatography-mass spectrometry (LC-MS). The protocol details steps for PUFA purification from various biological materials, the conditions for LC-MS analysis, as well as quantitative approaches for data evaluation. We provide an example of PUFA quantification in animal tissue along with the bioinformatic protocol, enabling efficient inter-sample comparison and statistical analysis. For complete details on the use and execution of this protocol, please refer to Vila et al.,1 Costanza et al.,2 Blomme et al.,3 and Blomme et al.4.
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Affiliation(s)
- Evgenia Turtoi
- Platform for Translational Oncometabolomics, Biocampus, CNRS, INSERM, Université de Montpellier, Montpellier, France
| | | | - Gilles Valette
- Laboratoire de Mesures Physiques, Université de Montpellier, Montpellier, France
| | - Christine Enjalbal
- Laboratoire de Mesures Physiques, Université de Montpellier, Montpellier, France
| | - Isabelle K Vila
- Institut de Génétique Moléculaire de Montpellier (IGMM), CNRS, Université de Montpellier, Montpellier, France
| | - Nadine Laguette
- Institut de Génétique Moléculaire de Montpellier (IGMM), CNRS, Université de Montpellier, Montpellier, France
| | - Andrei Turtoi
- Platform for Translational Oncometabolomics, Biocampus, CNRS, INSERM, Université de Montpellier, Montpellier, France; Tumor Microenvironment and Resistance to Therapy Laboratory, Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, INSERM U1194, Montpellier, France; Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, Japan.
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23
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Hu Z, Li X, Yang Y, Zhang Z, Ding S. High-Intensity Interval Training Ameliorates High-Fat Diet-Induced Metabolic Disorders via the Cyclic GMP-AMP Synthase-Stimulator of Interferon Gene Signaling Pathway. Int J Mol Sci 2023; 24:13840. [PMID: 37762143 PMCID: PMC10531371 DOI: 10.3390/ijms241813840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Metabolic diseases are growing in prevalence worldwide. Although the pathogenesis of metabolic diseases remains ambiguous, the correlation between cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING) and metabolic diseases has been identified recently. Exercise is an effective intervention protecting against metabolic diseases, however, the role of the cGAS-STING signaling pathway in this process is unclear, and the effect and mechanism of different exercise intensities on metabolic disorders are still unknown. Thus, we explored the association between exercise to ameliorate HFD-induced metabolic disorders and the cGAS-STING signaling pathway and compared the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT). Male C57BL/6 mice (6-8 weeks old) were fed HFD for 8 weeks to establish a metabolic disease model and were subjected to 8-week MICT or HIIT training. Glucose tolerance tests (GTT) and insulin tolerance tests (ITT) were used to assess glucose metabolism. Serum triglyceride (TG) and total cholesterol (TC) were measured to evaluate lipid metabolism. Oil red staining was used to observe the lipid droplets in the gastrocnemius muscle. An enzyme-linked immunosorbent assay was used to detect the serum inflammatory factors IL-6 and IFN-β. The protein expression of the cGAS-STING signaling pathway was detected by the WesTM automatic protein expression analysis system. We reported that HFD induced metabolic disorders with obesity, abnormal glucolipid metabolism, and significant inflammatory responses. Both HIIT and MICT ameliorated the above adverse reactions, but MICT was superior to HIIT in improving glucolipid disorders. Additionally, HIIT significantly increased the expression of STING protein, as well as the phosphorylation of TBKI and the ratio of p-IRF3/IRF3. MICT only increased the expression of STING protein. Our findings suggest that HIIT may alleviate HFD-induced metabolic disorder phenotype through the cGAS-STING signaling pathway. However, the improvement of MICT on metabolic disorder phenotype is less associated with the cGAS-STING pathway, which needs to be further explored.
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Affiliation(s)
- Zhiwen Hu
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Xi Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Yangjun Yang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Zhe Zhang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Shuzhe Ding
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China; (Z.H.); (X.L.); (Y.Y.)
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
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24
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Feng S, Liu Y, Zhou Y, Shu Z, Cheng Z, Brenner C, Feng P. Mechanistic insights into the role of herpes simplex virus 1 in Alzheimer's disease. Front Aging Neurosci 2023; 15:1245904. [PMID: 37744399 PMCID: PMC10512732 DOI: 10.3389/fnagi.2023.1245904] [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: 06/27/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Alzheimer's Disease (AD) is an aging-associated neurodegenerative disorder, threatening millions of people worldwide. The onset and progression of AD can be accelerated by environmental risk factors, such as bacterial and viral infections. Human herpesviruses are ubiquitous infectious agents that underpin numerous inflammatory disorders including neurodegenerative diseases. Published studies concerning human herpesviruses in AD imply an active role HSV-1 in the pathogenesis of AD. This review will summarize the current understanding of HSV-1 infection in AD and highlight some barriers to advance this emerging field.
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Affiliation(s)
- Shu Feng
- Department of Diabetes and Cancer Metabolism, City of Hope National Medical Center, Duarte, CA, United States
| | - Yongzhen Liu
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
| | - Yu Zhou
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
| | - Zhenfeng Shu
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
| | - Zhuxi Cheng
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
- International Department, Beijing Bayi School, Beijing, China
| | - Charles Brenner
- Department of Diabetes and Cancer Metabolism, City of Hope National Medical Center, Duarte, CA, United States
| | - Pinghui Feng
- Section of Infection and Immunity, Herman Ostrow School of Dentistry, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
- Department of Molecular Microbiology and Immunology, Norris Comprehensive Cancer Center, Los Angeles, CA, United States
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25
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Xu Y, Chen C, Liao Z, Xu P. cGAS-STING signaling in cell death: Mechanisms of action and implications in pathologies. Eur J Immunol 2023; 53:e2350386. [PMID: 37424054 DOI: 10.1002/eji.202350386] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 07/11/2023]
Abstract
Cyclic GMP-AMP synthase (cGAS) monitors dsDNA in the cytosol in response to pathogenic invasion or tissue injury, initiating cGAS-STING signaling cascades that regulate various cellular physiologies, including IFN /cytokine production, autophagy, protein synthesis, metabolism, senescence, and distinct types of cell death. cGAS-STING signaling is crucial for host defense and tissue homeostasis; however, its dysfunction frequently leads to infectious, autoimmune, inflammatory, degenerative, and cancerous diseases. Our knowledge regarding the relationships between cGAS-STING signaling and cell death is rapidly evolving, highlighting their essential roles in pathogenesis and disease progression. Nevertheless, the direct control of cell death by cGAS-STING signaling, rather than IFN/NF-κB-mediated transcriptional regulation, remains relatively unexplored. This review examines the mechanistic interplays between cGAS-STING cascades and apoptosis, necroptosis, pyroptosis, ferroptosis, and autophagic/lysosomal cell death. We will also discuss their pathological implications in human diseases, particularly in autoimmunity, cancer, and organ injury scenarios. We hope that this summary will stimulate discussion for further exploration of the complex life-or-death responses to cellular damage mediated by cGAS-STING signaling.
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Affiliation(s)
- Yifan Xu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, China
| | - Chen Chen
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Zhiyong Liao
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, China
| | - Pinglong Xu
- MOE Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
- Institute of Intelligent Medicine, Zhejiang University-Hangzhou Global Scientific and Technological Innovation Center (HIC-ZJU), Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
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26
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Das UN. Infection, Inflammation, and Immunity in Sepsis. Biomolecules 2023; 13:1332. [PMID: 37759732 PMCID: PMC10526286 DOI: 10.3390/biom13091332] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Sepsis is triggered by microbial infection, injury, or even major surgery. Both innate and adaptive immune systems are involved in its pathogenesis. Cytoplasmic presence of DNA or RNA of the invading organisms or damaged nuclear material (in the form of micronucleus in the cytoplasm) in the host cell need to be eliminated by various nucleases; failure to do so leads to the triggering of inflammation by the cellular cGAS-STING system, which induces the release of IL-6, TNF-α, and IFNs. These cytokines activate phospholipase A2 (PLA2), leading to the release of polyunsaturated fatty acids (PUFAs), gamma-linolenic acid (GLA), arachidonic acid (AA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), which form precursors to various pro- and anti-inflammatory eicosanoids. On the other hand, corticosteroids inhibit PLA2 activity and, thus, suppress the release of GLA, AA, EPA, and DHA. PUFAs and their metabolites have a negative regulatory action on the cGAS-STING pathway and, thus, suppress the inflammatory process and initiate inflammation resolution. Pro-inflammatory cytokines and corticosteroids (corticosteroids > IL-6, TNF-α) suppress desaturases, which results in decreased formation of GLA, AA, and other PUFAs from the dietary essential fatty acids (EFAs). A deficiency of GLA, AA, EPA, and DHA results in decreased production of anti-inflammatory eicosanoids and failure to suppress the cGAS-STING system. This results in the continuation of the inflammatory process. Thus, altered concentrations of PUFAs and their metabolites, and failure to suppress the cGAS-STING system at an appropriate time, leads to the onset of sepsis. Similar abnormalities are also seen in radiation-induced inflammation. These results imply that timely administration of GLA, AA, EPA, and DHA, in combination with corticosteroids and anti-IL-6 and anti-TNF-α antibodies, may be of benefit in mitigating radiation-induced damage and sepsis.
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Affiliation(s)
- Undurti N Das
- UND Life Sciences, 2221 NW 5th St., Battle Ground, WA 98604, USA
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27
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Li J, Wang Y, Deng H, Li S, Qiu HJ. Cellular metabolism hijacked by viruses for immunoevasion: potential antiviral targets. Front Immunol 2023; 14:1228811. [PMID: 37559723 PMCID: PMC10409484 DOI: 10.3389/fimmu.2023.1228811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 07/07/2023] [Indexed: 08/11/2023] Open
Abstract
Cellular metabolism plays a central role in the regulation of both innate and adaptive immunity. Immune cells utilize metabolic pathways to modulate the cellular differentiation or death. The intricate interplay between metabolism and immune response is critical for maintaining homeostasis and effective antiviral activities. In recent years, immunometabolism induced by viral infections has been extensively investigated, and accumulating evidence has indicated that cellular metabolism can be hijacked to facilitate viral replication. Generally, virus-induced changes in cellular metabolism lead to the reprogramming of metabolites and metabolic enzymes in different pathways (glucose, lipid, and amino acid metabolism). Metabolic reprogramming affects the function of immune cells, regulates the expression of immune molecules and determines cell fate. Therefore, it is important to explore the effector molecules with immunomodulatory properties, including metabolites, metabolic enzymes, and other immunometabolism-related molecules as the antivirals. This review summarizes the relevant advances in the field of metabolic reprogramming induced by viral infections, providing novel insights for the development of antivirals.
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Affiliation(s)
| | | | | | - Su Li
- State Key Laboratory for Animal Disease Control and Prevention, National African Swine Fever Para-reference Laboratory, National High Containment Facilities for Animal Diseases Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hua-Ji Qiu
- State Key Laboratory for Animal Disease Control and Prevention, National African Swine Fever Para-reference Laboratory, National High Containment Facilities for Animal Diseases Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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28
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Song C, Hu Z, Xu D, Bian H, Lv J, Zhu X, Zhang Q, Su L, Yin H, Lu T, Li Y. STING signaling in inflammaging: a new target against musculoskeletal diseases. Front Immunol 2023; 14:1227364. [PMID: 37492580 PMCID: PMC10363987 DOI: 10.3389/fimmu.2023.1227364] [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: 05/23/2023] [Accepted: 06/20/2023] [Indexed: 07/27/2023] Open
Abstract
Stimulator of Interferon Gene (STING) is a critical signaling linker protein that plays a crucial role in the intrinsic immune response, particularly in the cytoplasmic DNA-mediated immune response in both pathogens and hosts. It is also involved in various signaling processes in vivo. The musculoskeletal system provides humans with morphology, support, stability, and movement. However, its aging can result in various diseases and negatively impact people's lives. While many studies have reported that cellular aging is a leading cause of musculoskeletal disorders, it also offers insight into potential treatments. Under pathological conditions, senescent osteoblasts, chondrocytes, myeloid cells, and muscle fibers exhibit persistent senescence-associated secretory phenotype (SASP), metabolic disturbances, and cell cycle arrest, which are closely linked to abnormal STING activation. The accumulation of cytoplasmic DNA due to chromatin escape from the nucleus following DNA damage or telomere shortening activates the cGAS-STING signaling pathway. Moreover, STING activation is also linked to mitochondrial dysfunction, epigenetic modifications, and impaired cytoplasmic DNA degradation. STING activation upregulates SASP and autophagy directly and indirectly promotes cell cycle arrest. Thus, STING may be involved in the onset and development of various age-related musculoskeletal disorders and represents a potential therapeutic target. In recent years, many STING modulators have been developed and used in the study of musculoskeletal disorders. Therefore, this paper summarizes the effects of STING signaling on the musculoskeletal system at the molecular level and current understanding of the mechanisms of endogenous active ligand production and accumulation. We also discuss the relationship between some age-related musculoskeletal disorders and STING, as well as the current status of STING modulator development.
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Affiliation(s)
- Chenyu Song
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Zhuoyi Hu
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
| | - Dingjun Xu
- Department of Orthopaedics, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Zhejiang, China
| | - Huihui Bian
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Juan Lv
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Xuanxuan Zhu
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
| | - Qiang Zhang
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
| | - Li Su
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Heng Yin
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, China
| | - Tong Lu
- Department of Critical Care Medicine, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu, China
| | - Yinghua Li
- Institute of Translational Medicine, Shanghai University, Shanghai, China
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29
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Floyd W, Pierpoint M, Su C, Patel R, Luo L, Deland K, Wisdom AJ, Zhu D, Ma Y, DeWitt SB, Williams NT, Lazarides AL, Somarelli JA, Corcoran DL, Eward WC, Cardona DM, Kirsch DG. Atrx deletion impairs CGAS/STING signaling and increases sarcoma response to radiation and oncolytic herpesvirus. J Clin Invest 2023; 133:e149310. [PMID: 37200088 PMCID: PMC10313374 DOI: 10.1172/jci149310] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/16/2023] [Indexed: 05/20/2023] Open
Abstract
ATRX is one of the most frequently altered genes in solid tumors, and mutation is especially frequent in soft tissue sarcomas. However, the role of ATRX in tumor development and response to cancer therapies remains poorly understood. Here, we developed a primary mouse model of soft tissue sarcoma and showed that Atrx-deleted tumors were more sensitive to radiation therapy and to oncolytic herpesvirus. In the absence of Atrx, irradiated sarcomas had increased persistent DNA damage, telomere dysfunction, and mitotic catastrophe. Our work also showed that Atrx deletion resulted in downregulation of the CGAS/STING signaling pathway at multiple points in the pathway and was not driven by mutations or transcriptional downregulation of the CGAS/STING pathway components. We found that both human and mouse models of Atrx-deleted sarcoma had a reduced adaptive immune response, markedly impaired CGAS/STING signaling, and increased sensitivity to TVEC, an oncolytic herpesvirus that is currently FDA approved for the treatment of aggressive melanomas. Translation of these results to patients with ATRX-mutant cancers could enable genomically guided cancer therapy approaches to improve patient outcomes.
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Affiliation(s)
- Warren Floyd
- Department of Pharmacology and Cancer Biology, and
| | | | - Chang Su
- Department of Pharmacology and Cancer Biology, and
| | - Rutulkumar Patel
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Lixia Luo
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Katherine Deland
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Amy J. Wisdom
- Department of Radiation Oncology, Brigham and Women’s Hospital/Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Daniel Zhu
- Department of Pharmacology and Cancer Biology, and
| | - Yan Ma
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | | | - Nerissa T. Williams
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | | | - Jason A. Somarelli
- Department of Sarcoma, Moffitt Cancer Center, Tampa, Florida, USA
- Duke Cancer Institute, Durham, North Carolina, USA
| | - David L. Corcoran
- Center for Genomic and Computational Biology, Duke University, Durham, North Carolina, USA
| | | | - Diana M. Cardona
- Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA
| | - David G. Kirsch
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Radiation Oncology and
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
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Chauhan C, Kaundal RK. Understanding the role of cGAS-STING signaling in ischemic stroke: a new avenue for drug discovery. Expert Opin Drug Discov 2023; 18:1133-1149. [PMID: 37537969 DOI: 10.1080/17460441.2023.2244409] [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: 05/16/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/05/2023]
Abstract
INTRODUCTION Ischemic stroke is a significant global health challenge with limited treatment options. Neuroinflammation, driven by microglial activation, plays a critical role in stroke pathophysiology. The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling pathway has emerged as a key player in microglial activation, sterile neuroinflammation, and cell death following stroke. Understanding the interplay between this pathway and stroke pathophysiology is crucial for exploring newer therapeutics for stroke patients. AREAS COVERED This review discusses the pivotal role of the cGAS-STING pathway in ischemic stroke. It explores the interplay between cGAS-STING activation, neuroinflammation, microglia activation, M2 polarization, neutrophil infiltration, and cytokine release. Additionally, the authors examine its contributions to various cell death programs (pyroptosis, apoptosis, necroptosis, lysosomal cell death, autophagy, and ferroptosis). The review summarizes recent studies on targeting cGAS-STING signaling in stroke, highlighting the therapeutic potential of small molecule inhibitors and RNA-based approaches in mitigating neuroinflammation, preventing cell death, and improving patient outcomes. EXPERT OPINION Understanding cGAS-STING signaling in ischemic stroke offers an exciting avenue for drug discovery. Targeting this pathway holds promise for developing novel therapeutics that effectively mitigate neuroinflammation, prevent cell death, and enhance patient outcomes. Further research and development of therapeutic strategies are warranted to fully exploit the potential of this pathway as a therapeutic target for stroke.
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Affiliation(s)
- Chandan Chauhan
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli (NIPER-R), Lucknow, India
| | - Ravinder Kumar Kaundal
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli (NIPER-R), Lucknow, India
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Taffoni C, Schüssler M, Vila IK, Laguette N. Harnessing the cooperation between DNA-PK and cGAS in cancer therapies: The cooperation between DNA-PK and cGAS shapes tumour immunogenicity. Bioessays 2023; 45:e2300045. [PMID: 37147791 DOI: 10.1002/bies.202300045] [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: 03/08/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/07/2023]
Abstract
The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway is central for the initiation of anti-tumoural immune responses. Enormous effort has been made to optimise the design and administration of STING agonists to stimulate tumour immunogenicity. However, in certain contexts the cGAS-STING axis fuels tumourigenesis. Here, we review recent findings on the regulation of cGAS expression and activity. We particularly focus our attention on the DNA-dependent protein kinase (DNA-PK) complex, that recently emerged as an activator of inflammatory responses in tumour cells. We propose that stratification analyses on cGAS and DNA-PK expression/activation status should be carried out to predict treatment efficacy. We herein also provide insights into non-canonical functions borne by cGAS and cGAMP, highlighting how they may influence tumourigenesis. All these parameters should be taken into consideration concertedly to choose strategies aiming to effectively boost tumour immunogenicity.
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Affiliation(s)
- Clara Taffoni
- IGMM, Université de Montpellier, CNRS, Montpellier, France
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Harney DJ, Cielesh M, Roberts GE, Vila IK, Viengkhou B, Hofer MJ, Laguette N, Larance M. Dietary restriction induces a sexually dimorphic type I interferon response in mice with gene-environment interactions. Cell Rep 2023; 42:112559. [PMID: 37243595 DOI: 10.1016/j.celrep.2023.112559] [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: 07/12/2022] [Revised: 03/20/2023] [Accepted: 05/08/2023] [Indexed: 05/29/2023] Open
Abstract
Intermittent fasting (IF) is an established intervention to treat the growing obesity epidemic. However, the interaction between dietary interventions and sex remains a significant knowledge gap. In this study, we use unbiased proteome analysis to identify diet-sex interactions. We report sexual dimorphism in response to intermittent fasting within lipid and cholesterol metabolism and, unexpectedly, in type I interferon signaling, which was strongly induced in females. We verify that secretion of type I interferon is required for the IF response in females. Gonadectomy differentially alters the every-other-day fasting (EODF) response and demonstrates that sex hormone signaling can either suppress or enhance the interferon response to IF. IF fails to potentiate a stronger innate immune response when IF-treated animals were challenged with a viral mimetic. Lastly, the IF response changes with genotype and environment. These data reveal an interesting interaction between diet, sex, and the innate immune system.
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Affiliation(s)
- Dylan J Harney
- Charles Perkins Centre and School of Life and Environmental Sciences, The University of Sydney, Sydney, 2006 NSW, Australia
| | - Michelle Cielesh
- Charles Perkins Centre and School of Medical Sciences, The University of Sydney, Sydney, 2006 NSW, Australia
| | - Georgia E Roberts
- Charles Perkins Centre and School of Life and Environmental Sciences, The University of Sydney, Sydney, 2006 NSW, Australia
| | | | - Barney Viengkhou
- Charles Perkins Centre and School of Life and Environmental Sciences, The University of Sydney, Sydney, 2006 NSW, Australia
| | - Markus J Hofer
- Charles Perkins Centre and School of Life and Environmental Sciences, The University of Sydney, Sydney, 2006 NSW, Australia
| | | | - Mark Larance
- Charles Perkins Centre and School of Medical Sciences, The University of Sydney, Sydney, 2006 NSW, Australia.
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Elzinga SE, Koubek EJ, Hayes JM, Carter A, Mendelson FE, Webber-Davis I, Lentz SI, Feldman EL. Modeling the innate inflammatory cGAS/STING pathway: sexually dimorphic effects on microglia and cognition in obesity and prediabetes. Front Cell Neurosci 2023; 17:1167688. [PMID: 37206668 PMCID: PMC10188944 DOI: 10.3389/fncel.2023.1167688] [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: 02/16/2023] [Accepted: 04/06/2023] [Indexed: 05/21/2023] Open
Abstract
Introduction The prevalence of obesity, prediabetes, and diabetes continues to grow worldwide. These metabolic dysfunctions predispose individuals to neurodegenerative diseases and cognitive impairment, including dementias such as Alzheimer's disease and Alzheimer's disease related dementias (AD/ADRD). The innate inflammatory cGAS/STING pathway plays a pivotal role in metabolic dysfunction and is an emerging target of interest in multiple neurodegenerative diseases, including AD/ADRD. Therefore, our goal was to establish a murine model to specifically target the cGAS/STING pathway to study obesity- and prediabetes-induced cognitive impairment. Methods We performed two pilot studies in cGAS knockout (cGAS-/-) male and female mice designed to characterize basic metabolic and inflammatory phenotypes and examine the impact of high-fat diet (HFD) on metabolic, inflammatory, and cognitive parameters. Results cGAS-/- mice displayed normal metabolic profiles and retained the ability to respond to inflammatory stimuli, as indicated by an increase in plasma inflammatory cytokine production in response to lipopolysaccharide injection. HFD feeding caused expected increases in body weight and decreases in glucose tolerance, although onset was accelerated in females versus males. While HFD did not increase plasma or hippocampal inflammatory cytokine production, it did alter microglial morphology to a state indicative of activation, particularly in female cGAS-/- mice. However, HFD negatively impacted cognitive outcomes in male, but not female animals. Discussion Collectively, these results suggest that cGAS-/- mice display sexually dimorphic responses to HFD, possibly based on differences in microglial morphology and cognition.
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Affiliation(s)
- Sarah E. Elzinga
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Emily J. Koubek
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - John M. Hayes
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - A. Carter
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Faye E. Mendelson
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Ian Webber-Davis
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
| | - Stephen I. Lentz
- Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Eva L. Feldman
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
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Zhang Y, Lei MZ, Yin M, Lei QY. A metabolic clue for STING suppression. Trends Cell Biol 2023:S0962-8924(23)00077-6. [PMID: 37100634 DOI: 10.1016/j.tcb.2023.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023]
Abstract
A recent report by Heath et al. reveals that obesity could impair cancer immunogenicity and foster a type I interferon (IFN-I)-deprived tumor microenvironment through saturated fatty acid-mediated stimulator of interferon genes (STING) inhibition.
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Affiliation(s)
- Yifan Zhang
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China; Department of Oncology, Cancer Institutes, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Ming-Zhu Lei
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China; Department of Oncology, Cancer Institutes, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Miao Yin
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China; Department of Oncology, Cancer Institutes, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China
| | - Qun-Ying Lei
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China; Department of Oncology, Cancer Institutes, Shanghai Medical College, Fudan University, Shanghai 200032, People's Republic of China; State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, People's Republic of China.
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Vila IK, Laguette N. The unexpected role of the STING protein in lipid metabolism. C R Biol 2023; 346:29-33. [PMID: 37254782 DOI: 10.5802/crbiol.110] [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: 01/24/2023] [Revised: 02/10/2023] [Accepted: 02/27/2023] [Indexed: 06/01/2023]
Abstract
Detection of cytosolic pathological nucleic acids is a key step for the initiation of innate immune responses. In the past decade, the stimulator of interferon genes (STING) adaptor protein has emerged as a central platform enabling the activation of inflammatory responses in the presence of cytosolic DNAs. This has prompted a plethora of approaches aiming at modulating STING activation in order to boost or inhibit inflammatory responses. However, recent work has revealed that STING is also a direct regulator of metabolic homeostasis. In particular, STING regulates lipid metabolism directly, a function that is conserved throughout evolution. This indicates that STING targeting strategies must take into consideration potential metabolic side effects that may alter disease course, but also suggests that targeting STING may open the route to novel treatments for metabolic disorders. Here we discuss recent work describing the metabolic function of STING and the implications of these findings.
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Bertran L, Adalid L, Vilaró-Blay M, Barrientos-Riosalido A, Aguilar C, Martínez S, Sabench F, del Castillo D, Porras JA, Alibalic A, Richart C, Auguet T. Expression of STING in Women with Morbid Obesity and Nonalcoholic Fatty Liver Disease. Metabolites 2023; 13:metabo13040496. [PMID: 37110154 PMCID: PMC10146769 DOI: 10.3390/metabo13040496] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most prevalent chronic hepatic disease. Although mostly benign, this disease can evolve into nonalcoholic steatohepatitis (NASH). The stimulator of interferon genes (STING) plays an important role in the immune response against stressed cells, but this protein may also be involved in liver lipogenesis and microbiota composition. In this study, the role of STING in NAFLD was evaluated by RT–qPCR to analyze STING mRNA abundance and by immunohistochemical analysis to evaluate protein expression in liver biopsies from a cohort composed of 69 women with morbid obesity classified according to their liver involvement (normal liver, n = 27; simple steatosis (SS), n = 26; NASH, n = 16). The results showed that STING mRNA expression in the liver increases with the occurrence of NAFLD, specifically in the SS stage in which the degree of steatosis is mild or moderate. Protein analysis corroborated these results. Positive correlations were observed among hepatic STING mRNA abundance and gamma-glutamyl transferase and alkaline phosphatase levels, hepatic Toll-like receptor 9 expression and some circulating microbiota-derived bile acids. In conclusion, STING may be involved in the outcome and progression of NAFLD and may be related to hepatic lipid metabolism. However, further studies are needed to confirm these findings.
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Affiliation(s)
- Laia Bertran
- Grup de Recerca GEMMAIR (AGAUR)—Medicina Aplicada (URV), Departament de Medicina i Cirurgia, Institut d’Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain
| | - Laia Adalid
- Servei Anatomia Patològica, Hospital Universitari Joan XXIII Tarragona, Mallafré Guasch, 4, 43007 Tarragona, Spain
| | - Mercè Vilaró-Blay
- Grup de Recerca GEMMAIR (AGAUR)—Medicina Aplicada (URV), Departament de Medicina i Cirurgia, Institut d’Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain
| | - Andrea Barrientos-Riosalido
- Grup de Recerca GEMMAIR (AGAUR)—Medicina Aplicada (URV), Departament de Medicina i Cirurgia, Institut d’Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain
| | - Carmen Aguilar
- Grup de Recerca GEMMAIR (AGAUR)—Medicina Aplicada (URV), Departament de Medicina i Cirurgia, Institut d’Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain
| | - Salomé Martínez
- Servei Anatomia Patològica, Hospital Universitari Joan XXIII Tarragona, Mallafré Guasch, 4, 43007 Tarragona, Spain
| | - Fàtima Sabench
- Servei de Cirurgia i Anestèsia, Hospital Sant Joan de Reus, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, Avinguda Doctor Josep Laporte, 2, 43204 Reus, Spain
| | - Daniel del Castillo
- Servei de Cirurgia i Anestèsia, Hospital Sant Joan de Reus, Departament de Medicina i Cirurgia, Universitat Rovira i Virgili (URV), IISPV, Avinguda Doctor Josep Laporte, 2, 43204 Reus, Spain
| | - José Antonio Porras
- Servei de Medicina Interna, Hospital Universitari Joan XXIII Tarragona, Mallafré Guash, 4, 43007 Tarragona, Spain
| | - Ajla Alibalic
- Servei de Medicina Interna, Hospital Universitari Joan XXIII Tarragona, Mallafré Guash, 4, 43007 Tarragona, Spain
| | - Cristóbal Richart
- Grup de Recerca GEMMAIR (AGAUR)—Medicina Aplicada (URV), Departament de Medicina i Cirurgia, Institut d’Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain
| | - Teresa Auguet
- Grup de Recerca GEMMAIR (AGAUR)—Medicina Aplicada (URV), Departament de Medicina i Cirurgia, Institut d’Investigació Sanitària Pere Virgili (IISPV), Universitat Rovira i Virgili (URV), 43007 Tarragona, Spain
- Servei de Medicina Interna, Hospital Universitari Joan XXIII Tarragona, Mallafré Guash, 4, 43007 Tarragona, Spain
- Correspondence: ; Tel.: +34-977-29-58-33
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Wang X, Liang Q, Li Z, Li F. Body Composition and COPD: A New Perspective. Int J Chron Obstruct Pulmon Dis 2023; 18:79-97. [PMID: 36788999 PMCID: PMC9922509 DOI: 10.2147/copd.s394907] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
The proportion of obese or overweight patients in COPD patients is increasing. Although BMI, WC and other easy to measure indicators have been proven to be related to the risk of COPD, they cannot accurately reflect the distribution and changes of body composition, ignoring the body composition (such as fat distribution, muscle content, water content, etc.), the relationship between it and disease risk may be missed. By analyzing the correlation between different body composition indexes and COPD patients, we can provide new research ideas for the prognosis judgment or intervention of COPD disease.
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Affiliation(s)
- Xin Wang
- Department of Integrated Pulmonology, Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China,Xinjiang National Clinical Research Base of Traditional Chinese Medicine, Urumqi, Xinjiang, People’s Republic of China
| | - Qianqian Liang
- Department of Integrated Pulmonology, Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China,Xinjiang National Clinical Research Base of Traditional Chinese Medicine, Urumqi, Xinjiang, People’s Republic of China
| | - Zheng Li
- Department of Integrated Pulmonology, Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China,Xinjiang National Clinical Research Base of Traditional Chinese Medicine, Urumqi, Xinjiang, People’s Republic of China,Xinjiang Key Laboratory of Respiratory Disease Research, Urumqi, Xinjiang, People’s Republic of China,Xinjiang Clinical Medical Research Center of Respiratory Obstructive Diseases, Urumqi, Xinjiang, People’s Republic of China,Correspondence: Zheng Li; Fengsen Li, Tel +86-13999297797; +86-13999980996, Email ;
| | - Fengsen Li
- Department of Integrated Pulmonology, Fourth Clinical Medical College of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China,Xinjiang National Clinical Research Base of Traditional Chinese Medicine, Urumqi, Xinjiang, People’s Republic of China,Xinjiang Key Laboratory of Respiratory Disease Research, Urumqi, Xinjiang, People’s Republic of China,Xinjiang Clinical Medical Research Center of Respiratory Obstructive Diseases, Urumqi, Xinjiang, People’s Republic of China
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Yang W, Yu T, Zhou G, Yao S, Wakamiya M, Hu H, Paessler S, Sun J, Cong Y. Intrinsic STING Switches off Pathogenetic Programs of Th1 Cells to Inhibit Colitis. Cell Mol Gastroenterol Hepatol 2023; 15:1161-1179. [PMID: 36736893 PMCID: PMC10040963 DOI: 10.1016/j.jcmgh.2023.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS T helper 1 (Th1) effector cells are implicated in inflammatory bowel disease. The stimulator of interferon genes (STING), an intracellular DNA sensor, has been shown to regulate infection and various cancers. However, whether and how intrinsic STING signaling in Th1 cells regulates colitis is still unknown. METHODS Dextran sodium sulfate-induced colitis and wild-type/STING-deficient CD4+T cell adoptive transfer models were used to analyze the role of STING in regulating colitis. The effect of STING on Th1 cells was determined by flow cytometry, RNA sequencing, metabolic assays, and mitochondrial functions. 16S ribosomal RNA sequencing and germ-free mice were used to investigate whether the microbiota were involved. The in vivo effect of STING agonist in murine colitis was determined. The expression and role of STING in human T cells were also determined. RESULTS Activation of STING transformed proinflammatory IFNγ+Th1 cells into IL-10+IFNγ+Th1 cells, which were dramatically less pathogenic in inducing colitis. STING promoted Th1 interleukin (IL)-10 production by inducing STAT3 translocation into nuclear and mitochondria, which promoted Blimp1 expression and mitochondrial oxidation, respectively. Blockade of glucose or glutamine-derived oxidation, but not lipid-derived oxidation, suppressed STING induction of IL-10. Gut microbiota were changed in STING-/- mice, but the altered microbiota did not mediate STING effects on intestinal CD4+T cell production of IL-10. Translationally, STING agonists suppressed both acute and chronic colitis. Intestinal STING+ CD4+T cells were increased in inflammatory bowel disease patients, and STING agonists upregulated IL-10 production in human CD4+T cells. CONCLUSIONS These findings establish a crucial role of T cell-intrinsic STING in switching off the pathogenic programs of Th1 cells in intestinal inflammation.
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Affiliation(s)
- Wenjing Yang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas; Sealy Center for Microbiome Research, University of Texas Medical Branch, Galveston, Texas
| | - Tianming Yu
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas; Sealy Center for Microbiome Research, University of Texas Medical Branch, Galveston, Texas
| | - Guangxi Zhou
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, P.R. China
| | - Suxia Yao
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Maki Wakamiya
- Germ-free Mouse Facility, University of Texas Medical Branch, Galveston, Texas
| | - Haitao Hu
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Slobodan Paessler
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas
| | - Jiaren Sun
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas; Department of Pathology, University of Texas Medical Branch, Galveston, Texas
| | - Yingzi Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas; Sealy Center for Microbiome Research, University of Texas Medical Branch, Galveston, Texas.
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Pan J, Fei CJ, Hu Y, Wu XY, Nie L, Chen J. Current understanding of the cGAS-STING signaling pathway: Structure, regulatory mechanisms, and related diseases. Zool Res 2023; 44:183-218. [PMID: 36579404 PMCID: PMC9841179 DOI: 10.24272/j.issn.2095-8137.2022.464] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
The innate immune system protects the host from external pathogens and internal damage in various ways. The cGAS-STING signaling pathway, comprised of cyclic GMP-AMP synthase (cGAS), stimulator of interferon genes (STING), and downstream signaling adaptors, plays an essential role in protective immune defense against microbial DNA and internal damaged-associated DNA and is responsible for various immune-related diseases. After binding with DNA, cytosolic cGAS undergoes conformational change and DNA-linked liquid-liquid phase separation to produce 2'3'-cGAMP for the activation of endoplasmic reticulum (ER)-localized STING. However, further studies revealed that cGAS is predominantly expressed in the nucleus and strictly tethered to chromatin to prevent binding with nuclear DNA, and functions differently from cytosolic-localized cGAS. Detailed delineation of this pathway, including its structure, signaling, and regulatory mechanisms, is of great significance to fully understand the diversity of cGAS-STING activation and signaling and will be of benefit for the treatment of inflammatory diseases and cancer. Here, we review recent progress on the above-mentioned perspectives of the cGAS-STING signaling pathway and discuss new avenues for further study.
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Affiliation(s)
- Jing Pan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
- Zhejiang Key Laboratory of Marine Bioengineering, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Chen-Jie Fei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
- Zhejiang Key Laboratory of Marine Bioengineering, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Yang Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
- Zhejiang Key Laboratory of Marine Bioengineering, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Xiang-Yu Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
- Zhejiang Key Laboratory of Marine Bioengineering, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Li Nie
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
- Zhejiang Key Laboratory of Marine Bioengineering, Ningbo University, Ningbo, Zhejiang 315832, China. E-mail:
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, Zhejiang 315211, China
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
- Zhejiang Key Laboratory of Marine Bioengineering, Ningbo University, Ningbo, Zhejiang 315832, China. E-mail:
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Jneid B, Bochnakian A, Hoffmann C, Delisle F, Djacoto E, Sirven P, Denizeau J, Sedlik C, Gerber-Ferder Y, Fiore F, Akyol R, Brousse C, Kramer R, Walters I, Carlioz S, Salmon H, Malissen B, Dalod M, Piaggio E, Manel N. Selective STING stimulation in dendritic cells primes antitumor T cell responses. Sci Immunol 2023; 8:eabn6612. [PMID: 36638189 DOI: 10.1126/sciimmunol.abn6612] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
T cells that recognize tumor antigens are crucial for mounting antitumor immune responses. Induction of antitumor T cells in immunogenic tumors depends on STING, the intracellular innate immune receptor for cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) and related cyclic dinucleotides (CDNs). However, the optimal way to leverage STING activation in nonimmunogenic tumors is still unclear. Here, we show that cGAMP delivery by intratumoral injection of virus-like particles (cGAMP-VLP) led to differentiation of circulating tumor-specific T cells, decreased tumor regulatory T cells (Tregs), and antitumoral responses that synergized with PD1 blockade. By contrast, intratumoral injection of the synthetic CDN ADU-S100 led to tumor necrosis and systemic T cell activation but simultaneously depleted immune cells from injected tumors and induced minimal priming of circulating tumor-specific T cells. The antitumor effects of cGAMP-VLP required type 1 conventional dendritic cells (cDC1), whereas ADU-S100 eliminated cDC1 from injected tumors. cGAMP-VLP preferentially targeted STING in dendritic cells at a 1000-fold smaller dose than ADU-S100. Subcutaneous administration of cGAMP-VLP showed synergy when combined with PD1 blockade or a tumor Treg-depleting antibody to elicit systemic tumor-specific T cells and antitumor activity, leading to complete and durable tumor eradication in the case of tumor Treg depletion. These findings show that cell targeting of STING stimulation shapes the antitumor T cell response and identify a therapeutic strategy to enhance T cell-targeted immunotherapy.
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Affiliation(s)
- Bakhos Jneid
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Aurore Bochnakian
- Institut Curie, PSL Research University, INSERM U932, Paris, France.,Stimunity, Paris, France
| | - Caroline Hoffmann
- Institut Curie, INSERM U932 Immunity and Cancer, Department of Surgical Oncology, PSL University, Paris, France
| | - Fabien Delisle
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Emeline Djacoto
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Philémon Sirven
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Jordan Denizeau
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Christine Sedlik
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | | | - Frédéric Fiore
- Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Ramazan Akyol
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Carine Brousse
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | | | | | | | - Hélène Salmon
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Bernard Malissen
- Centre d'Immunophénomique (CIPHE), Aix Marseille Université, INSERM, CNRS, 13288 Marseille, France
| | - Marc Dalod
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, Marseille, France
| | - Eliane Piaggio
- Institut Curie, PSL Research University, INSERM U932, Paris, France
| | - Nicolas Manel
- Institut Curie, PSL Research University, INSERM U932, Paris, France
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41
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Dumesic PA, Wilensky SE, Bose S, Van Vranken JG, Gygi SP, Spiegelman BM. RBM43 links adipose inflammation and energy expenditure through translational regulation of PGC1α. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.06.522985. [PMID: 36712038 PMCID: PMC9881917 DOI: 10.1101/2023.01.06.522985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Adipose thermogenesis involves specialized mitochondrial function that counteracts metabolic disease through dissipation of chemical energy as heat. However, inflammation present in obese adipose tissue can impair oxidative metabolism. Here, we show that PGC1α, a key governor of mitochondrial biogenesis and thermogenesis, is negatively regulated at the level of mRNA translation by the little-known RNA-binding protein RBM43. Rbm43 is expressed selectively in white adipose depots that have low thermogenic potential, and is induced by inflammatory cytokines. RBM43 suppresses mitochondrial and thermogenic gene expression in a PGC1α-dependent manner and its loss protects cells from cytokine-induced mitochondrial impairment. In mice, adipocyte-selective Rbm43 disruption increases PGC1α translation, resulting in mitochondrial biogenesis and adipose thermogenesis. These changes are accompanied by improvements in glucose homeostasis during diet-induced obesity that are independent of body weight. The action of RBM43 suggests a translational mechanism by which inflammatory signals associated with metabolic disease dampen mitochondrial function and thermogenesis.
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De Martino M, Daviaud C, Hajjar E, Vanpouille-Box C. Fatty acid metabolism and radiation-induced anti-tumor immunity. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2023; 376:121-141. [PMID: 36997267 DOI: 10.1016/bs.ircmb.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fatty acid metabolic reprogramming has emerged as a major regulator of anti-tumor immune responses with large body of evidence that demonstrate its ability to impact the differentiation and function of immune cells. Therefore, depending on the metabolic cues that stem in the tumor microenvironment, the tumor fatty acid metabolism can tilt the balance of inflammatory signals to either promote or impair anti-tumor immune responses. Oxidative stressors such as reactive oxygen species generated from radiation therapy can rewire the tumor energy supply, suggesting that radiation therapy can further perturb the energy metabolism of a tumor by promoting fatty acid production. In this review, we critically discuss the network of fatty acid metabolism and how it regulates immune response especially in the context of radiation therapy.
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43
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Zhang Z, Zhou H, Ouyang X, Dong Y, Sarapultsev A, Luo S, Hu D. Multifaceted functions of STING in human health and disease: from molecular mechanism to targeted strategy. Signal Transduct Target Ther 2022; 7:394. [PMID: 36550103 PMCID: PMC9780328 DOI: 10.1038/s41392-022-01252-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/25/2022] [Accepted: 11/09/2022] [Indexed: 12/24/2022] Open
Abstract
Since the discovery of Stimulator of Interferon Genes (STING) as an important pivot for cytosolic DNA sensation and interferon (IFN) induction, intensive efforts have been endeavored to clarify the molecular mechanism of its activation, its physiological function as a ubiquitously expressed protein, and to explore its potential as a therapeutic target in a wide range of immune-related diseases. With its orthodox ligand 2'3'-cyclic GMP-AMP (2'3'-cGAMP) and the upstream sensor 2'3'-cGAMP synthase (cGAS) to be found, STING acquires its central functionality in the best-studied signaling cascade, namely the cGAS-STING-IFN pathway. However, recently updated research through structural research, genetic screening, and biochemical assay greatly extends the current knowledge of STING biology. A second ligand pocket was recently discovered in the transmembrane domain for a synthetic agonist. On its downstream outputs, accumulating studies sketch primordial and multifaceted roles of STING beyond its cytokine-inducing function, such as autophagy, cell death, metabolic modulation, endoplasmic reticulum (ER) stress, and RNA virus restriction. Furthermore, with the expansion of the STING interactome, the details of STING trafficking also get clearer. After retrospecting the brief history of viral interference and the milestone events since the discovery of STING, we present a vivid panorama of STING biology taking into account the details of the biochemical assay and structural information, especially its versatile outputs and functions beyond IFN induction. We also summarize the roles of STING in the pathogenesis of various diseases and highlight the development of small-molecular compounds targeting STING for disease treatment in combination with the latest research. Finally, we discuss the open questions imperative to answer.
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Affiliation(s)
- Zili Zhang
- grid.33199.310000 0004 0368 7223Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022 Wuhan, China
| | - Haifeng Zhou
- grid.33199.310000 0004 0368 7223Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022 Wuhan, China
| | - Xiaohu Ouyang
- grid.33199.310000 0004 0368 7223Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022 Wuhan, China
| | - Yalan Dong
- grid.33199.310000 0004 0368 7223Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022 Wuhan, China
| | - Alexey Sarapultsev
- grid.426536.00000 0004 1760 306XInstitute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, 620049 Ekaterinburg, Russia
| | - Shanshan Luo
- grid.33199.310000 0004 0368 7223Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Desheng Hu
- grid.33199.310000 0004 0368 7223Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430022 Wuhan, China ,grid.419897.a0000 0004 0369 313XKey Laboratory of Biological Targeted Therapy, The Ministry of Education, 430022 Wuhan, China ,Clinical Research Center of Cancer Immunotherapy, 430022 Hubei Wuhan, China
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Mansouri S, Gogoi H, Patel S, Katikaneni DS, Singh A, Aybar-Torres A, de Lartigue G, Jin L. MPYS Modulates Fatty Acid Metabolism and Immune Tolerance at Homeostasis Independent of Type I IFNs. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:2114-2132. [PMID: 36261171 PMCID: PMC9679991 DOI: 10.4049/jimmunol.2200158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/15/2022] [Indexed: 01/04/2023]
Abstract
MPYS/STING (stimulator of IFN genes) senses cyclic dinucleotides (CDNs), generates type I IFNs, and plays a critical role in infection, inflammation, and cancer. In this study, analyzing genotype and haplotype data from the 1000 Genomes Project, we found that the R71H-G230A-R293Q (HAQ) MPYS allele frequency increased 57-fold in East Asians compared with sub-Saharan Africans. Meanwhile, the G230A-R293Q (AQ) allele frequency decreased by 98% in East Asians compared with sub-Saharan Africans. We propose that the HAQ and AQ alleles underwent a natural selection during the out-of-Africa migration. We used mouse models of HAQ and AQ to investigate the underlying mechanism. We found that the mice carrying the AQ allele, which disappeared in East Asians, had normal CDN-type I IFN responses. Adult AQ mice, however, had less fat mass than did HAQ or wild-type mice on a chow diet. AQ epididymal adipose tissue had increased regulatory T cells and M2 macrophages with protein expression associated with enhanced fatty acid oxidation. Conditional knockout mice and adoptive cell transfer indicate a macrophage and regulatory T cell-intrinsic role of MPYS in fatty acid metabolism. Mechanistically, AQ/IFNAR1-/- mice had a similar lean phenotype as for the AQ mice. MPYS intrinsic tryptophan fluorescence revealed that the R71H change increased MPYS hydrophilicity. Lastly, we found that the second transmembrane (TM) and the TM2-TM3 linker region of MPYS interact with activated fatty acid, fatty acyl-CoA. In summary, studying the evolution of the human MPYS gene revealed an MPYS function in modulating fatty acid metabolism that may be critical during the out-of-Africa migration.
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Affiliation(s)
- Samira Mansouri
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL
| | - Himanshu Gogoi
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL
| | - Seema Patel
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL
| | - Divya S. Katikaneni
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL
| | - Arashdeep Singh
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL; and
- Center for Integrative Cardiovascular and Metabolic Disease, University of Florida, Gainesville, FL
| | - Alexandra Aybar-Torres
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL
| | - Guillaume de Lartigue
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL; and
- Center for Integrative Cardiovascular and Metabolic Disease, University of Florida, Gainesville, FL
| | - Lei Jin
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL
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45
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Vila IK, Guha S, Kalucka J, Olagnier D, Laguette N. Alternative pathways driven by STING: From innate immunity to lipid metabolism. Cytokine Growth Factor Rev 2022; 68:54-68. [PMID: 36085258 DOI: 10.1016/j.cytogfr.2022.08.006] [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: 08/21/2022] [Accepted: 08/29/2022] [Indexed: 01/30/2023]
Abstract
The Stimulator of Interferon Genes (STING) is a major adaptor protein that is central to the initiation of type I interferon responses and proinflammatory signalling. STING-dependent signalling is triggered by the presence of cytosolic nucleic acids that are generated following pathogen infection or cellular stress. Beyond this central role in controlling immune responses through the production of cytokines and chemokines, recent reports have uncovered inflammation-independent STING functions. Amongst these, a rapidly growing body of evidence demonstrates a key role of STING in controlling metabolic pathways at several levels. Since immunity and metabolic homeostasis are tightly interconnected, these findings deepen our understanding of the involvement of STING in human pathologies. Here, we discuss these findings and reflect on their impact on our current understanding of how nucleic acid immunity controls homeostasis and promotes pathological outcomes.
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Affiliation(s)
- Isabelle K Vila
- Institut de Génétique Humaine, Univ Montpellier, CNRS, Montpellier, France.
| | - Soumyabrata Guha
- Institut de Génétique Humaine, Univ Montpellier, CNRS, Montpellier, France
| | - Joanna Kalucka
- Aarhus University, Department of Biomedicine, Aarhus, Denmark
| | - David Olagnier
- Aarhus University, Department of Biomedicine, Aarhus, Denmark
| | - Nadine Laguette
- Institut de Génétique Humaine, Univ Montpellier, CNRS, Montpellier, France.
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46
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Chen C, Xu P. Cellular functions of cGAS-STING signaling. Trends Cell Biol 2022:S0962-8924(22)00252-5. [DOI: 10.1016/j.tcb.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/27/2022]
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47
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Feng T, Zhang W, Li Z. Potential Mechanisms of Gut-Derived Extracellular Vesicle Participation in Glucose and Lipid Homeostasis. Genes (Basel) 2022; 13:genes13111964. [PMID: 36360201 PMCID: PMC9689624 DOI: 10.3390/genes13111964] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 01/19/2023] Open
Abstract
The intestine participates in the regulation of glucose and lipid metabolism in multiple facets. It is the major site of nutrient digestion and absorption, provides the interface as well as docking locus for gut microbiota, and harbors hormone-producing cells scattered throughout the gut epithelium. Intestinal extracellular vesicles are known to influence the local immune response, whereas their roles in glucose and lipid homeostasis have barely been explored. Hence, this current review summarizes the latest knowledge of cargo substances detected in intestinal extracellular vesicles, and connects these molecules with the fine-tuning regulation of glucose and lipid metabolism in liver, muscle, pancreas, and adipose tissue.
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Affiliation(s)
- Tiange Feng
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing 100191, China
| | - Weizhen Zhang
- Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing 100191, China
- Department of Surgery, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
- Correspondence: (W.Z.); (Z.L.); Tel.: +1-734-615-0360 (W.Z.); +1-207-396-8050 (Z.L.)
| | - Ziru Li
- MaineHealth Institute for Research, MaineHealth, Scarborough, ME 04074, USA
- Correspondence: (W.Z.); (Z.L.); Tel.: +1-734-615-0360 (W.Z.); +1-207-396-8050 (Z.L.)
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48
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Endo Y, Kanno T, Nakajima T. Fatty acid metabolism in T-cell function and differentiation. Int Immunol 2022; 34:579-587. [PMID: 35700102 DOI: 10.1093/intimm/dxac025] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/12/2022] [Indexed: 01/07/2023] Open
Abstract
Immunometabolism has recently emerged as a field of study examining the intersection between immunology and metabolism. Studies in this area have yielded new findings on the roles of a diverse range of metabolic pathways and metabolites, which have been found to control many aspects of T-cell biology, including cell differentiation, function and fate. A particularly important finding has been the discovery that to meet the energy requirements associated with their proliferation, activation and specific functions, T cells switch their metabolic signatures during differentiation. For example, whereas the induction of de novo fatty acid biosynthesis and fatty acid uptake programs are required for antigen-stimulation-induced proliferation and differentiation of effector T cells, fatty acid catabolism via β-oxidation is essential for the generation of memory T cells and the differentiation of regulatory T cells. In this review, we discuss recent advances in our understanding of the metabolism in different stages of T cells and how fatty acid metabolism in these cells controls their specific functions.
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Affiliation(s)
- Yusuke Endo
- Department of Frontier Research and Development, Laboratory of Medical Omics Research, Kazusa DNA Research Institute, 2-6-7 Kazusa Kamatari, Kisarazu, Chiba 292-0818, Japan.,Department of Omics Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Toshio Kanno
- Department of Frontier Research and Development, Laboratory of Medical Omics Research, Kazusa DNA Research Institute, 2-6-7 Kazusa Kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Takahiro Nakajima
- Department of Frontier Research and Development, Laboratory of Medical Omics Research, Kazusa DNA Research Institute, 2-6-7 Kazusa Kamatari, Kisarazu, Chiba 292-0818, Japan
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49
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Physicochemical, Nutritional Properties and Metabolomics Analysis Fat Deposition Mechanism of Chahua Chicken No. 2 and Yao Chicken. Genes (Basel) 2022; 13:genes13081358. [PMID: 36011269 PMCID: PMC9407069 DOI: 10.3390/genes13081358] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 01/27/2023] Open
Abstract
Poultry is an important dietary source of animal protein, accounting for approximately 30% of global meat consumption. Because of its low price, low fat and cholesterol content, and no religious restrictions, chicken is considered a widely available healthy meat. Chahua chicken No. 2 is a synthetic breed of Chahua chicken derived from five generations of specialized strain breeding. In this study, Chahua chicken No. 2 (CH) and Yao chicken (Y) were used as the research objects to compare the differences in physicochemical and nutritional indicators of meat quality between the two chicken breeds, and metabolomics was used to analyze the differences in metabolites and lipid metabolism pathways and to explore the expression of genes involved in adipogenesis. The physical index and nutritional value of CH are better than that of Y, and the chemical index of Y is better than that of CH. However, the chemical index results of CH are also within the normal theoretical value range. Comprehensive comparison shows that the meat quality of CH is relatively good. Metabolomics analysis showed that CH and Y had 85 different metabolites, and the differential metabolites were mainly classified into eight categories. KEGG pathway enrichment analysis revealed 13 different metabolic pathways. The screened PPARG, FABP3, ACSL5, FASN, UCP3 and SC5D were negatively correlated with muscle fat deposition, while PPARα, ACACA and ACOX1 were positively correlated with muscle fat deposition. The meat quality of CH was better than Y. The metabolites and metabolic pathways obtained by metabonomics analysis mainly involved the metabolism of amino acids and fatty acids, which were consistent with the differences in meat quality between the two breeds and the contents of precursors affecting flavor. The screened genes were associated with fatty deposition in poultry.
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50
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Chamma H, Vila IK, Taffoni C, Turtoi A, Laguette N. Activation of STING in the pancreatic tumor microenvironment: A novel therapeutic opportunity. Cancer Lett 2022; 538:215694. [PMID: 35489447 DOI: 10.1016/j.canlet.2022.215694] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/21/2022] [Accepted: 04/15/2022] [Indexed: 12/20/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a cancer of poor prognosis that presents with a dense desmoplastic stroma that contributes to therapeutic failure. PDAC patients are mostly unresponsive to immunotherapy. However, hopes to elicit response to immunotherapy have emerged with novel strategies targeting the Stimulator of Interferon Genes (STING) protein, which is a major regulator of tumor-associated inflammation. Combination of STING agonists with conventional immunotherapy approaches has proven to potentiate therapeutic benefits in several cancers. However, recent data underscore that the output of STING activation varies depending on the cellular and tissue context. This suggests that tumor heterogeneity, and in particular the heterogeneity of the tumor microenvironment (TME), is a key factor determining whether STING activation would bear benefits for patients. In this review, we discuss the potential benefits of STING activation in PDAC. To this aim, we describe the major components of the PDAC TME, and the expected consequences of STING activation.
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Affiliation(s)
- Hanane Chamma
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Isabelle K Vila
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Clara Taffoni
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France
| | - Andrei Turtoi
- Tumor Microenvironment Laboratory, Institut de Recherche en Cancérologie de Montpellier, Université de Montpellier, INSERM U1194, 34000, Montpellier, France.
| | - Nadine Laguette
- Institut de Génétique Humaine, CNRS, Université de Montpellier, Molecular Basis of Inflammation Laboratory, Montpellier, France.
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