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Wu KKL, Xu X, Wu M, Li X, Hoque M, Li GHY, Lian Q, Long K, Zhou T, Piao H, Xu A, Hui HX, Cheng KKY. MDM2 induces pro-inflammatory and glycolytic responses in M1 macrophages by integrating iNOS-nitric oxide and HIF-1α pathways in mice. Nat Commun 2024; 15:8624. [PMID: 39366973 PMCID: PMC11452520 DOI: 10.1038/s41467-024-53006-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: 10/20/2022] [Accepted: 09/28/2024] [Indexed: 10/06/2024] Open
Abstract
M1 macrophages induce protective immunity against infection, but also contribute to metabolic and inflammatory diseases. Here we show that the E3 ubiquitin ligase, MDM2, promotes the glycolytic and inflammatory activities of M1 macrophage by increasing the production of IL-1β, MCP-1 and nitric oxide (NO). Mechanistically, MDM2 triggers the ubiquitination and degradation of E3 ligase, SPSB2, to stabilize iNOS and increases production of NO, which s-nitrosylates and activates HIF-1α for triggering the glycolytic and pro-inflammatory programs in M1 macrophages. Myeloid-specific haplodeletion of MDM2 in mice not only blunts LPS-induced endotoxemia and NO production, but also alleviates obesity-induced adipose tissue-resident macrophage inflammation. By contrast, MDM2 haplodeletion induces higher mortality, tissue damage and bacterial burden, and also suppresses M1 macrophage response, in the cecal ligation and puncture-induced sepsis mouse model. Our findings thus identify MDM2 as an activator of glycolytic and inflammatory responses in M1 macrophages by connecting the iNOS-NO and HIF-1α pathways.
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Affiliation(s)
- Kelvin Ka-Lok Wu
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Xiaofan Xu
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Manyin Wu
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Xiaomu Li
- Department of Endocrinology and Metabolism, Zhongshan Hospital Fudan University, Shanghai, China
| | - Moinul Hoque
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Gloria Hoi Yee Li
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Qizhou Lian
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Prenatal Diagnostic Center and Cord Blood Bank, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Kekao Long
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Tongxi Zhou
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Hailong Piao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Beijing, China
| | - Aimin Xu
- The State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong SAR, China
- Department of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Department of Pharmacology & Pharmacy, The University of Hong Kong, Hong Kong SAR, China
| | - Hannah Xiaoyan Hui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kenneth King-Yip Cheng
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong SAR, China.
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Hong Kong SAR, China.
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Amo-Aparicio J, Dinarello CA, Lopez-Vales R. Metabolic reprogramming of the inflammatory response in the nervous system: the crossover between inflammation and metabolism. Neural Regen Res 2024; 19:2189-2201. [PMID: 38488552 PMCID: PMC11034585 DOI: 10.4103/1673-5374.391330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/25/2023] [Accepted: 11/13/2023] [Indexed: 04/24/2024] Open
Abstract
Metabolism is a fundamental process by which biochemicals are broken down to produce energy (catabolism) or used to build macromolecules (anabolism). Metabolism has received renewed attention as a mechanism that generates molecules that modulate multiple cellular responses. This was first identified in cancer cells as the Warburg effect, but it is also present in immunocompetent cells. Studies have revealed a bidirectional influence of cellular metabolism and immune cell function, highlighting the significance of metabolic reprogramming in immune cell activation and effector functions. Metabolic processes such as glycolysis, oxidative phosphorylation, and fatty acid oxidation have been shown to undergo dynamic changes during immune cell response, facilitating the energetic and biosynthetic demands. This review aims to provide a better understanding of the metabolic reprogramming that occurs in different immune cells upon activation, with a special focus on central nervous system disorders. Understanding the metabolic changes of the immune response not only provides insights into the fundamental mechanisms that regulate immune cell function but also opens new approaches for therapeutic strategies aimed at manipulating the immune system.
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Affiliation(s)
| | | | - Ruben Lopez-Vales
- Institute of Neurosciences, and Department Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Spain
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3
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Bogdan C, Islam NAK, Barinberg D, Soulat D, Schleicher U, Rai B. The immunomicrotope of Leishmania control and persistence. Trends Parasitol 2024; 40:788-804. [PMID: 39174373 DOI: 10.1016/j.pt.2024.07.013] [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: 06/20/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 08/24/2024]
Abstract
Leishmania is an intracellular protozoan transmitted by sand fly vectors; it causes cutaneous, mucocutaneous, or visceral disease. Its growth and survival are impeded by type 1 T helper cell responses, which entail interferon (IFN)-γ-mediated macrophage activation. Leishmania partially escapes this host defense by triggering immune cell and cytokine responses that favor parasite replication rather than killing. Novel methods for in situ analyses have revealed that the pathways of immune control and microbial evasion are strongly influenced by the tissue context, the micro milieu factors, and the metabolism at the site of infection, which we collectively term the 'immunomicrotope'. Understanding the components and the impact of the immunomicrotope will enable the development of novel strategies for the treatment of chronic leishmaniasis.
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Affiliation(s)
- Christian Bogdan
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Wasserturmstraße 3/5, D-91054 Erlangen, Germany; FAU Profile Center Immunomedicine, FAU Erlangen-Nürnberg, Schlossplatz 1, D-91054 Erlangen, Germany.
| | - Noor-A-Kasida Islam
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Wasserturmstraße 3/5, D-91054 Erlangen, Germany
| | - David Barinberg
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Wasserturmstraße 3/5, D-91054 Erlangen, Germany
| | - Didier Soulat
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Wasserturmstraße 3/5, D-91054 Erlangen, Germany; FAU Profile Center Immunomedicine, FAU Erlangen-Nürnberg, Schlossplatz 1, D-91054 Erlangen, Germany
| | - Ulrike Schleicher
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Wasserturmstraße 3/5, D-91054 Erlangen, Germany; FAU Profile Center Immunomedicine, FAU Erlangen-Nürnberg, Schlossplatz 1, D-91054 Erlangen, Germany
| | - Baplu Rai
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Wasserturmstraße 3/5, D-91054 Erlangen, Germany
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4
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Wong A, Sun Q, Latif II, Karwi QG. Macrophage energy metabolism in cardiometabolic disease. Mol Cell Biochem 2024:10.1007/s11010-024-05099-6. [PMID: 39198360 DOI: 10.1007/s11010-024-05099-6] [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: 04/27/2024] [Accepted: 08/19/2024] [Indexed: 09/01/2024]
Abstract
In a rapidly expanding body of literature, the major role of energy metabolism in determining the response and polarization status of macrophages has been examined, and it is currently a very active area of research. The metabolic flux through different metabolic pathways in the macrophage is interconnected and complex and could influence the polarization of macrophages. Earlier studies suggested glucose flux through cytosolic glycolysis is a prerequisite to trigger the pro-inflammatory phenotypes of macrophages while proposing that fatty acid oxidation is essential to support anti-inflammatory responses by macrophages. However, recent studies have shown that this understanding is oversimplified and that the metabolic control of macrophage polarization is highly complex and not fully defined yet. In this review, we systematically reviewed and summarized the literature regarding the role of energy metabolism in controlling macrophage activity and how that might be altered in cardiometabolic diseases, namely heart failure, obesity, and diabetes. We critically appraised the experimental studies and methodologies in the published studies. We also highlighted the challenging concepts in macrophage metabolism and identified several research questions yet to be addressed in future investigations.
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Affiliation(s)
- Angela Wong
- Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1B 3V6, Canada
- Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Qiuyu Sun
- Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1B 3V6, Canada
- Cardiovascular Research Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Ismail I Latif
- Department of Microbiology, College of Medicine, University of Diyala, Baqubaa, Diyala, Iraq
| | - Qutuba G Karwi
- Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, A1B 3V6, Canada.
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5
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Mal S, Majumder D, Birari P, Sharma AK, Gupta U, Jana K, Kundu M, Basu J. The miR-26a/SIRT6/HIF-1α axis regulates glycolysis and inflammatory responses in host macrophages during Mycobacterium tuberculosis infection. FEBS Lett 2024. [PMID: 39155147 DOI: 10.1002/1873-3468.15001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/12/2024] [Accepted: 07/03/2024] [Indexed: 08/20/2024]
Abstract
Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis. Here, a macrophage infection model was used to unravel the role of the histone deacetylase sirtuin 6 (SIRT6) in Mtb-triggered regulation of the innate immune response. Mtb infection downregulated microRNA-26a and upregulated its target SIRT6. SIRT6 suppressed glycolysis and expression of HIF-1α-dependent glycolytic genes during infection. In addition, SIRT6 regulated the levels of intracellular succinate which controls stabilization of HIF-1α, as well as the release of interleukin (IL)-1β. Furthermore, SIRT6 inhibited inducible nitric oxide synthase (iNOS) and proinflammatory IL-6 but augmented anti-inflammatory arginase expression. The miR-26a/SIRT6/HIF-1α axis therefore regulates glycolysis and macrophage immune responses during Mtb infection. Our findings link SIRT6 to rewiring of macrophage signaling pathways facilitating dampening of the antibacterial immune response.
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Affiliation(s)
- Soumya Mal
- Department of Biological Sciences, Bose Institute, Unified Academic Campus, Kolkata, India
| | | | - Pankaj Birari
- Department of Chemical Sciences, Bose Institute, Kolkata, India
| | | | - Umesh Gupta
- National JALMA Institute of Leprosy and Other Mycobacterial Disease, Agra, India
| | - Kuladip Jana
- Department of Biological Sciences, Bose Institute, Unified Academic Campus, Kolkata, India
| | | | - Joyoti Basu
- Department of Chemical Sciences, Bose Institute, Kolkata, India
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Gao C, Xiao C, Wang M, Liang X, Qin C, Zhang H, Bai R, Zhang R, Feng W, Yang J, Tang J. HIF-1 Transcriptionally Regulates Basal Expression of STING to Maintain Cellular Innate Immunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:494-505. [PMID: 38967520 DOI: 10.4049/jimmunol.2400123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024]
Abstract
Stimulator of IFN genes (STING) is a critical component of the innate immune system, playing an essential role in defending against DNA virus infections. However, the mechanisms governing basal STING regulation remain poorly understood. In this study, we demonstrate that the basal level of STING is critically maintained by hypoxia-inducible factor 1 (HIF-1)α through transcription. Under normal conditions, HIF-1α binds constitutively to the promoter region of STING, actively promoting its transcription. Knocking down HIF-1α results in a decrease in STING expression in multiple cell lines and zebrafish, which in turn reduces cellular responses to synthetic dsDNAs, including cell signaling and IFN production. Moreover, this decrease in STING levels leads to an increase in cellular susceptibility to DNA viruses HSV-1 and pseudorabies virus. These findings unveil a (to our knowledge) novel role of HIF-1α in maintaining basal STING levels and provide valuable insights into STING-mediated antiviral activities and associated diseases.
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Affiliation(s)
- Chao Gao
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chenglu Xiao
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Mengdong Wang
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xinxin Liang
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chao Qin
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hang Zhang
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Rulan Bai
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Rui Zhang
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Wenhai Feng
- State Key Laboratories for Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jinbo Yang
- Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Jun Tang
- National Key Laboratory of Veterinary Public Health Security, Key Laboratory of Animal Epidemiology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, China
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7
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Song DH, Jo JY, Kim CH, Kim MH, Cho IA, Shin JK, Choi WJ, Baek JC. Hypoxia-Regulated Proteins: Expression in Endometrial Cancer and Their Association with Clinicopathologic Features. Diagnostics (Basel) 2024; 14:1735. [PMID: 39202223 PMCID: PMC11353210 DOI: 10.3390/diagnostics14161735] [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: 07/09/2024] [Revised: 08/08/2024] [Accepted: 08/08/2024] [Indexed: 09/03/2024] Open
Abstract
BACKGROUND Hypoxia-regulated proteins (HIF-1α and GLUT-1) have been identified as prognostic markers in various cancers; however, their role in endometrial cancer remains unclear. This study aimed to evaluate HIF-1α and GLUT-1 expression in endometrial cancer and correlate their expression with clinicopathological features. MATERIALS AND METHODS A tissue microarray (TMA) was constructed using specimens from a retrospective cohort of 51 endometrial cancer patients who underwent hysterectomy at the Gyeongsang National University Hospital between 2002 and 2009. Clinicopathologic data were collected from electronic medical records, and HIF-1α and GLUT-1 expressions were assessed in the tumor tissue. RESULTS GLUT-1 expression in endometrial cancer was categorized as mosaic, central, or diffuse. Most patients (56.0%) exhibited a central pattern, followed by diffuse (32.0%) and mosaic (12.0%) patterns. GLUT-1 expression was not significantly associated with histologic grade (p = 0.365). HIF-1α expression in immune cells, but not tumor cells, was significantly associated with a higher histologic grade. A higher proportion of HIF-1α-positive immune cells, using both thresholds (≤1% vs. >1% and ≤5% vs. >5%), was significantly associated with higher histologic grade (p = 0.032 and p = 0.048, respectively). In addition, a higher proportion of HIF-1α-positive immune cells was significantly associated with a diffuse GLUT-1 expression pattern using >5% as a threshold. There were no significant differences in the proportion of HIF-1α-positive immune cells between groups stratified by age, tumor size, or invasion depth, regardless of whether the 1% or 5% threshold for HIF-1α positivity was used. CONCLUSIONS A higher proportion of HIF-1α-positive immune cells is associated with endometrial cancers with higher histologic grade and diffuse GLUT1 expression patterns. These findings suggest a potential role for HIF-1α as a prognostic marker and highlight the need for further studies into the role of HIF-1α in the tumor microenvironment.
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Affiliation(s)
- Dae Hyun Song
- Department of Pathology, Gyeongsang National University School of Medicine, Gyeongsang National University Changwon Hospital, 11, Changwon-si 51472, Republic of Korea;
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
| | - Jae Yoon Jo
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
- Department of Obstetrics and Gynecology, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
| | - Cho Hee Kim
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
| | - Min Hye Kim
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
- Department of Pathology, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
| | - In Ae Cho
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
- Department of Obstetrics and Gynecology, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
| | - Jeong Kyu Shin
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
- Department of Obstetrics and Gynecology, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
| | - Won Jun Choi
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
- Department of Obstetrics and Gynecology, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
| | - Jong Chul Baek
- Institute of Medical Science, Gyeongsang National University, Jinju 52727, Republic of Korea; (J.Y.J.); (C.H.K.); (M.H.K.); (I.A.C.); (J.K.S.); (W.J.C.)
- Department of Obstetrics and Gynecology, Gyeongsang National University School of Medicine, Gyeongsang National University Changwon Hospital, 11, Changwon-si 51472, Republic of Korea
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Chand Dakal T, Choudhary K, Tiwari I, Yadav V, Kumar Maurya P, Kumar Sharma N. Unraveling the Triad: Hypoxia, Oxidative Stress and Inflammation in Neurodegenerative Disorders. Neuroscience 2024; 552:126-141. [PMID: 38936458 DOI: 10.1016/j.neuroscience.2024.06.021] [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: 04/12/2024] [Revised: 06/07/2024] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
The mammalian brain's complete dependence on oxygen for ATP production makes it highly susceptible to hypoxia, at high altitudes or in clinical scenarios including anemia or pulmonary disease. Hypoxia plays a crucial role in the development of various brain disorders, such as Alzheimer's, Parkinson's, and other age-related neurodegenerative diseases. On the other hand, a decrease in environmental oxygen levels, such as prolonged stays at high elevations, may have beneficial impacts on the process of ageing and the likelihood of death. Additionally, the utilization of controlled hypoxia exposure could potentially serve as a therapeutic approach for age-related brain diseases. Recent findings indicate that the involvement of HIF-1α and the NLRP3 inflammasome is of significant importance in the development of Alzheimer's disease. HIF-1α serves as a pivotal controller of various cellular reactions to oxygen deprivation, exerting influence on a multitude of physiological mechanisms such as energy metabolism and inflammatory responses. The NLRP3 plays a crucial role in the innate immune system by coordinating the initiation of inflammatory reactions through the assembly of the inflammasome complex. This review examines the information pertaining to the contrasting effects of hypoxia on the brain, highlighting both its positive and deleterious effects and molecular pathways that are involved in mediating these different effects. This study explores potential strategies for therapeutic intervention that focus on restoring cellular balance and reducing neuroinflammation, which are critical aspects in addressing this severe neurodegenerative condition and addresses crucial inquiries that warrant further future investigations.
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Affiliation(s)
- Tikam Chand Dakal
- Genome and Computational Biology Lab, Mohanlal Sukhadia University, Udaipur 313001, Rajasthan, India
| | - Kanika Choudhary
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Isha Tiwari
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Tonk 304022, Rajasthan, India
| | - Vikas Yadav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Pawan Kumar Maurya
- Department of Biochemistry, Central University of Haryana, Mahendergarh 123031, India
| | - Narendra Kumar Sharma
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Tonk 304022, Rajasthan, India.
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Zhang Y, Wang X, Gao Z, Li X, Meng R, Wu X, Ding J, Shen W, Zhu J. Hypoxia-inducible factor-1α promotes macrophage functional activities in protecting hypoxia-tolerant large yellow croaker ( Larimichthys crocea) against Aeromonas hydrophila infection. Front Immunol 2024; 15:1410082. [PMID: 39156889 PMCID: PMC11327042 DOI: 10.3389/fimmu.2024.1410082] [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: 03/31/2024] [Accepted: 07/08/2024] [Indexed: 08/20/2024] Open
Abstract
The immune system requires a high energy expenditure to resist pathogen invasion. Macrophages undergo metabolic reprogramming to meet these energy requirements and immunologic activity and polarize to M1-type macrophages. Understanding the metabolic pathway switching in large yellow croaker (Larimichthys crocea) macrophages in response to lipopolysaccharide (LPS) stimulation and whether this switching affects immunity is helpful in explaining the stronger immunity of hypoxia-tolerant L. crocea. In this study, transcript levels of glycolytic pathway genes (Glut1 and Pdk1), mRNA levels or enzyme activities of glycolytic enzymes [hexokinase (HK), phosphofructokinase (PFK), pyruvate kinase (PK), and lactate dehydrogenase A (LDHA)], aerobic respiratory enzymes [pyruvate dehydrogenase (PDH), isocitrate dehydrogenase (IDH), and succinate dehydrogenase (SDH)], metabolites [lactic acid (LA) and adenosine triphosphate (ATP)], levels of bactericidal products [reactive oxygen species (ROS) and nitric oxide (NO)], and transcripts and level changes of inflammatory factors [IL1β, TNFα, and interferon (IFN) γ] were detected in LPS-stimulated L. crocea head kidney macrophages. We showed that glycolysis was significantly induced, the tricarboxylic acid (TCA) cycle was inhibited, and metabolic reprogramming occurred, showing the Warburg effect when immune cells were activated. To determine the potential regulatory mechanism behind these changes, LcHIF-1α was detected and found to be significantly induced and transferred to the nucleus after LPS stimulation. LcHif-1α interference led to a significant reduction in glycolytic pathway gene transcript expression, enzyme activity, metabolites, bactericidal substances, and inflammatory factor levels; a significant increase in the aerobic respiration enzymes; and decreased migration, invasion, and phagocytosis. Further ultrastructural observation by electron microscopy showed that fewer microspheres contained phagocytes and that more cells were damaged after LcHif-1α interference. LcHif-1α overexpression L. crocea head kidney macrophages showed the opposite trend, and promoter activities of Ldha and Il1β were significantly enhanced after LcHif-1α overexpression in HEK293T cells. Our data showed that LcHIF-1α acted as a metabolic switch in L. crocea macrophages and was important in polarization. Hypoxia-tolerant L. crocea head kidney showed a stronger Warburg effect and inhibited the TCA cycle, higher metabolites, and bactericidal substance levels. These results collectively revealed that LcHif-1α may promote the functional activities of head kidney macrophages in protecting hypoxia-tolerant L. crocea from Aeromonas hydrophila infection.
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Affiliation(s)
- Yibo Zhang
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, and Key Laboratory of Marine Biotechnology of Zhejiang Province, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Xuelei Wang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Zhenyu Gao
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, and Key Laboratory of Marine Biotechnology of Zhejiang Province, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - XuJie Li
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Ran Meng
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Xiongfei Wu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Jie Ding
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, and Key Laboratory of Marine Biotechnology of Zhejiang Province, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Weiliang Shen
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Junquan Zhu
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, and Key Laboratory of Marine Biotechnology of Zhejiang Province, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
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10
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Ting KKY. Revisiting the role of hypoxia-inducible factors and nuclear factor erythroid 2-related factor 2 in regulating macrophage inflammation and metabolism. Front Cell Infect Microbiol 2024; 14:1403915. [PMID: 39119289 PMCID: PMC11306205 DOI: 10.3389/fcimb.2024.1403915] [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: 03/20/2024] [Accepted: 07/11/2024] [Indexed: 08/10/2024] Open
Abstract
The recent birth of the immunometabolism field has comprehensively demonstrated how the rewiring of intracellular metabolism is critical for supporting the effector functions of many immune cell types, such as myeloid cells. Among all, the transcriptional regulation mediated by Hypoxia-Inducible Factors (HIFs) and Nuclear factor erythroid 2-related factor 2 (NRF2) have been consistently shown to play critical roles in regulating the glycolytic metabolism, redox homeostasis and inflammatory responses of macrophages (Mφs). Although both of these transcription factors were first discovered back in the 1990s, new advances in understanding their function and regulations have been continuously made in the context of immunometabolism. Therefore, this review attempts to summarize the traditionally and newly identified functions of these transcription factors, including their roles in orchestrating the key events that take place during glycolytic reprogramming in activated myeloid cells, as well as their roles in mediating Mφ inflammatory responses in various bacterial infection models.
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Affiliation(s)
- Kenneth K. Y. Ting
- Department of Immunology, University of Toronto, Toronto, ON, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada
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11
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Wong A, Sun Q, Latif II, Karwi QG. Metabolic flux in macrophages in obesity and type-2 diabetes. JOURNAL OF PHARMACY & PHARMACEUTICAL SCIENCES : A PUBLICATION OF THE CANADIAN SOCIETY FOR PHARMACEUTICAL SCIENCES, SOCIETE CANADIENNE DES SCIENCES PHARMACEUTIQUES 2024; 27:13210. [PMID: 38988822 PMCID: PMC11233469 DOI: 10.3389/jpps.2024.13210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 06/14/2024] [Indexed: 07/12/2024]
Abstract
Recent literature extensively investigates the crucial role of energy metabolism in determining the inflammatory response and polarization status of macrophages. This rapidly expanding area of research highlights the importance of understanding the link between energy metabolism and macrophage function. The metabolic pathways in macrophages are intricate and interdependent, and they can affect the polarization of macrophages. Previous studies suggested that glucose flux through cytosolic glycolysis is necessary to trigger pro-inflammatory phenotypes of macrophages, and fatty acid oxidation is crucial to support anti-inflammatory responses. However, recent studies demonstrated that this understanding is oversimplified and that the metabolic control of macrophage polarization is highly complex and not fully understood yet. How the metabolic flux through different metabolic pathways (glycolysis, glucose oxidation, fatty acid oxidation, ketone oxidation, and amino acid oxidation) is altered by obesity- and type 2 diabetes (T2D)-associated insulin resistance is also not fully defined. This mini-review focuses on the impact of insulin resistance in obesity and T2D on the metabolic flux through the main metabolic pathways in macrophages, which might be linked to changes in their inflammatory responses. We closely evaluated the experimental studies and methodologies used in the published research and highlighted priority research areas for future investigations.
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Affiliation(s)
- Angela Wong
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Qiuyu Sun
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Ismail Ibrahim Latif
- Department of Microbiology, College of Medicine, University of Diyala, Baqubaa, Diyala, Iraq
| | - Qutuba G Karwi
- Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, Saint John's, NL, Canada
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12
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Genito CJ, Darwitz BP, Reber CP, Moorman NJ, Graves CL, Monteith AJ, Thurlow LR. mTOR signaling is required for phagocyte free radical production, GLUT1 expression, and control of Staphylococcus aureus infection. mBio 2024; 15:e0086224. [PMID: 38767353 PMCID: PMC11324022 DOI: 10.1128/mbio.00862-24] [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: 03/20/2024] [Accepted: 04/15/2024] [Indexed: 05/22/2024] Open
Abstract
Mammalian target of rapamycin (mTOR) is a key regulator of metabolism in the mammalian cell. Here, we show the essential role for mTOR signaling in the immune response to bacterial infection. Inhibition of mTOR during infection with Staphylococcus aureus revealed that mTOR signaling is required for bactericidal free radical production by phagocytes. Mechanistically, mTOR supported glucose transporter GLUT1 expression, potentially through hypoxia-inducible factor 1α, upon phagocyte activation. Cytokine and chemokine signaling, inducible nitric oxide synthase, and p65 nuclear translocation were present at similar levels during mTOR suppression, suggesting an NF-κB-independent role for mTOR signaling in the immune response during bacterial infection. We propose that mTOR signaling primarily mediates the metabolic requirements necessary for phagocyte bactericidal free radical production. This study has important implications for the metabolic requirements of innate immune cells during bacterial infection as well as the clinical use of mTOR inhibitors.IMPORTANCESirolimus, everolimus, temsirolimus, and similar are a class of pharmaceutics commonly used in the clinical treatment of cancer and the anti-rejection of transplanted organs. Each of these agents suppresses the activity of the mammalian target of rapamycin (mTOR), a master regulator of metabolism in human cells. Activation of mTOR is also involved in the immune response to bacterial infection, and treatments that inhibit mTOR are associated with increased susceptibility to bacterial infections in the skin and soft tissue. Infections caused by Staphylococcus aureus are among the most common and severe. Our study shows that this susceptibility to S. aureus infection during mTOR suppression is due to an impaired function of phagocytic immune cells responsible for controlling bacterial infections. Specifically, we observed that mTOR activity is required for phagocytes to produce antimicrobial free radicals. These results have important implications for immune responses during clinical treatments and in disease states where mTOR is suppressed.
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Affiliation(s)
- Christopher J. Genito
- Division of Oral and
Craniofacial Health Sciences, Adams School of Dentistry, University of
North Carolina at Chapel Hill,
Chapel Hill, North Carolina,
USA
| | - Benjamin P. Darwitz
- Department of
Microbiology and Immunology, School of Medicine, University of North
Carolina at Chapel Hill, Chapel
Hill, North Carolina, USA
| | - Callista P. Reber
- Department of
Microbiology, University of Tennessee,
Knoxville, Tennessee,
USA
| | - Nathaniel J. Moorman
- Department of
Microbiology and Immunology, School of Medicine, University of North
Carolina at Chapel Hill, Chapel
Hill, North Carolina, USA
| | - Christina L. Graves
- Division of Oral and
Craniofacial Health Sciences, Adams School of Dentistry, University of
North Carolina at Chapel Hill,
Chapel Hill, North Carolina,
USA
| | - Andrew J. Monteith
- Department of
Microbiology, University of Tennessee,
Knoxville, Tennessee,
USA
| | - Lance R. Thurlow
- Division of Oral and
Craniofacial Health Sciences, Adams School of Dentistry, University of
North Carolina at Chapel Hill,
Chapel Hill, North Carolina,
USA
- Department of
Microbiology and Immunology, School of Medicine, University of North
Carolina at Chapel Hill, Chapel
Hill, North Carolina, USA
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13
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Sharma G, Sharma A, Kim I, Cha DG, Kim S, Park ES, Noh JG, Lee J, Ku JH, Choi YH, Kong J, Lee H, Ko H, Lee J, Notaro A, Hong SH, Rhee JH, Kim SG, De Castro C, Molinaro A, Shin K, Kim S, Kim JK, Rudra D, Im SH. A dietary commensal microbe enhances antitumor immunity by activating tumor macrophages to sequester iron. Nat Immunol 2024; 25:790-801. [PMID: 38664585 DOI: 10.1038/s41590-024-01816-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/13/2024] [Indexed: 05/04/2024]
Abstract
Innate immune cells generate a multifaceted antitumor immune response, including the conservation of essential nutrients such as iron. These cells can be modulated by commensal bacteria; however, identifying and understanding how this occurs is a challenge. Here we show that the food commensal Lactiplantibacillus plantarum IMB19 augments antitumor immunity in syngeneic and xenograft mouse tumor models. Its capsular heteropolysaccharide is the major effector molecule, functioning as a ligand for TLR2. In a two-pronged manner, it skews tumor-associated macrophages to a classically active phenotype, leading to generation of a sustained CD8+ T cell response, and triggers macrophage 'nutritional immunity' to deploy the high-affinity iron transporter lipocalin-2 for capturing and sequestering iron in the tumor microenvironment. This process induces a cycle of tumor cell death, epitope expansion and subsequent tumor clearance. Together these data indicate that food commensals might be identified and developed into 'oncobiotics' for a multi-layered approach to cancer therapy.
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Affiliation(s)
- Garima Sharma
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
- ImmunoBiome, Bio Open Innovation Center, Pohang, Republic of Korea
| | - Amit Sharma
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
- Innovation Research Center for Bio-future Technology (B-IRC), Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Inhae Kim
- ImmunoBiome, Bio Open Innovation Center, Pohang, Republic of Korea
| | - Dong Gon Cha
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Somi Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Eun Seo Park
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Jae Gyun Noh
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Juhee Lee
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Ja Hyeon Ku
- Department of Urology, College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yoon Ha Choi
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - JungHo Kong
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Haena Lee
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Haeun Ko
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Juhun Lee
- ImmunoBiome, Bio Open Innovation Center, Pohang, Republic of Korea
| | - Anna Notaro
- Department of Chemical Sciences, University of Napoli Federico II Complesso Universitario Monte Santangelo, Via Cintia 4, I-80126, Naples, Italy
| | - Seol Hee Hong
- Clinical Vaccine R&D Center and Combinatorial Tumor Immunotherapy MRC, Chonnam National University, Hwasun-gun, Republic of Korea
| | - Joon Haeng Rhee
- Clinical Vaccine R&D Center and Combinatorial Tumor Immunotherapy MRC, Chonnam National University, Hwasun-gun, Republic of Korea
| | - Sang Geon Kim
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University, Seoul, Republic of Korea
| | - Cristina De Castro
- Department of Chemical Sciences, University of Napoli Federico II Complesso Universitario Monte Santangelo, Via Cintia 4, I-80126, Naples, Italy
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Napoli Federico II Complesso Universitario Monte Santangelo, Via Cintia 4, I-80126, Naples, Italy
| | - Kunyoo Shin
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
- Department of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sanguk Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Jong Kyoung Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
- Department of New Biology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea
| | - Dipayan Rudra
- ImmunoBiome, Bio Open Innovation Center, Pohang, Republic of Korea.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China.
| | - Sin-Hyeog Im
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.
- ImmunoBiome, Bio Open Innovation Center, Pohang, Republic of Korea.
- Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Seoul, Republic of Korea.
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14
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Wiggins DA, Maxwell JN, Nelson DE. Exploring the role of CITED transcriptional regulators in the control of macrophage polarization. Front Immunol 2024; 15:1365718. [PMID: 38646545 PMCID: PMC11032013 DOI: 10.3389/fimmu.2024.1365718] [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: 01/04/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Macrophages are tissue resident innate phagocytic cells that take on contrasting phenotypes, or polarization states, in response to the changing combination of microbial and cytokine signals at sites of infection. During the opening stages of an infection, macrophages adopt the proinflammatory, highly antimicrobial M1 state, later shifting to an anti-inflammatory, pro-tissue repair M2 state as the infection resolves. The changes in gene expression underlying these transitions are primarily governed by nuclear factor kappaB (NF-κB), Janus kinase (JAK)/signal transducer and activation of transcription (STAT), and hypoxia-inducible factor 1 (HIF1) transcription factors, the activity of which must be carefully controlled to ensure an effective yet spatially and temporally restricted inflammatory response. While much of this control is provided by pathway-specific feedback loops, recent work has shown that the transcriptional co-regulators of the CBP/p300-interacting transactivator with glutamic acid/aspartic acid-rich carboxy-terminal domain (CITED) family serve as common controllers for these pathways. In this review, we describe how CITED proteins regulate polarization-associated gene expression changes by controlling the ability of transcription factors to form chromatin complexes with the histone acetyltransferase, CBP/p300. We will also cover how differences in the interactions between CITED1 and 2 with CBP/p300 drive their contrasting effects on pro-inflammatory gene expression.
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Affiliation(s)
| | | | - David E. Nelson
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN, United States
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15
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Horn CM, Arumugam P, Van Roy Z, Heim CE, Fallet RW, Bertrand BP, Shinde D, Thomas VC, Romanova SG, Bronich TK, Hartman CW, Garvin KL, Kielian T. Granulocytic myeloid-derived suppressor cell activity during biofilm infection is regulated by a glycolysis/HIF1a axis. J Clin Invest 2024; 134:e174051. [PMID: 38421730 PMCID: PMC11014666 DOI: 10.1172/jci174051] [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: 07/18/2023] [Accepted: 02/20/2024] [Indexed: 03/02/2024] Open
Abstract
Staphylococcus aureus is a leading cause of biofilm-associated prosthetic joint infection (PJI). A primary contributor to infection chronicity is an expansion of granulocytic myeloid-derived suppressor cells (G-MDSCs), which are critical for orchestrating the antiinflammatory biofilm milieu. Single-cell sequencing and bioinformatic metabolic algorithms were used to explore the link between G-MDSC metabolism and S. aureus PJI outcome. Glycolysis and the hypoxia response through HIF1a were significantly enriched in G-MDSCs. Interfering with both pathways in vivo, using a 2-deoxyglucose nanopreparation and granulocyte-targeted Hif1a conditional KO mice, respectively, attenuated G-MDSC-mediated immunosuppression and reduced bacterial burden in a mouse model of S. aureus PJI. In addition, single-cell RNA-Seq (scRNA-Seq) analysis of granulocytes from PJI patients also showed an enrichment in glycolysis and hypoxia-response genes. These findings support the importance of a glycolysis/HIF1a axis in promoting G-MDSC antiinflammatory activity and biofilm persistence during PJI.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Svetlana G. Romanova
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center (UNMC), Omaha, Nebraska, USA
| | - Tatiana K. Bronich
- Department of Pharmacy, Northeastern University, Boston, Massachusetts, USA
| | - Curtis W. Hartman
- Department of Orthopaedic Surgery and Rehabilitation, UNMC, Omaha, Nebraska, USA
| | - Kevin L. Garvin
- Department of Orthopaedic Surgery and Rehabilitation, UNMC, Omaha, Nebraska, USA
| | - Tammy Kielian
- Department of Pathology, Microbiology, and Immunology and
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16
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Farahani E, Reinert LS, Narita R, Serrero MC, Skouboe MK, van der Horst D, Assil S, Zhang B, Iversen MB, Gutierrez E, Hazrati H, Johannsen M, Olagnier D, Kunze R, Denham M, Mogensen TH, Lappe M, Paludan SR. The HIF transcription network exerts innate antiviral activity in neurons and limits brain inflammation. Cell Rep 2024; 43:113792. [PMID: 38363679 PMCID: PMC10915869 DOI: 10.1016/j.celrep.2024.113792] [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: 08/07/2023] [Revised: 12/04/2023] [Accepted: 01/29/2024] [Indexed: 02/18/2024] Open
Abstract
Pattern recognition receptors (PRRs) induce host defense but can also induce exacerbated inflammatory responses. This raises the question of whether other mechanisms are also involved in early host defense. Using transcriptome analysis of disrupted transcripts in herpes simplex virus (HSV)-infected cells, we find that HSV infection disrupts the hypoxia-inducible factor (HIF) transcription network in neurons and epithelial cells. Importantly, HIF activation leads to control of HSV replication. Mechanistically, HIF activation induces autophagy, which is essential for antiviral activity. HSV-2 infection in vivo leads to hypoxia in CNS neurons, and mice with neuron-specific HIF1/2α deficiency exhibit elevated viral load and augmented PRR signaling and inflammatory gene expression in the CNS after HSV-2 infection. Data from human stem cell-derived neuron and microglia cultures show that HIF also exerts antiviral and inflammation-restricting activity in human CNS cells. Collectively, the HIF transcription factor system senses virus-induced hypoxic stress to induce cell-intrinsic antiviral responses and limit inflammation.
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Affiliation(s)
- Ensieh Farahani
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Line S Reinert
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Ryo Narita
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Manutea C Serrero
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Morten Kelder Skouboe
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark; Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Demi van der Horst
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Sonia Assil
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Baocun Zhang
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Marie B Iversen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Eugenio Gutierrez
- Center of Functionally Integrative Neuroscience, Aarhus University, Aarhus, Denmark
| | - Hossein Hazrati
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark; Department of Forensic Science, Aarhus University, Aarhus, Denmark
| | - Mogens Johannsen
- Department of Forensic Science, Aarhus University, Aarhus, Denmark
| | - David Olagnier
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark
| | - Reiner Kunze
- Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany
| | - Mark Denham
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Danish Research Institute of Translational Neuroscience, Nordic EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus, Denmark
| | - Trine H Mogensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark; Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Michael Lappe
- Department of Molecular Medicine (MOMA), Aarhus University Hospital, Aarhus, Denmark; CONNECT - Center for Clinical and Genomic Data, Aarhus University Hospital, Aarhus, Denmark
| | - Søren R Paludan
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Center for Immunology of Viral Infections, Aarhus University, Aarhus, Denmark.
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17
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Choudhary R, Kumari S, Ali M, Thinlas T, Rabyang S, Mishra A. Respiratory tract infection: an unfamiliar risk factor in high-altitude pulmonary edema. Brief Funct Genomics 2024; 23:38-45. [PMID: 36528814 DOI: 10.1093/bfgp/elac048] [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: 09/05/2022] [Revised: 10/26/2022] [Accepted: 11/04/2022] [Indexed: 01/21/2024] Open
Abstract
The dramatic changes in physiology at high altitude (HA) as a result of the characteristic hypobaric hypoxia condition can modify innate and adaptive defense mechanisms of the body. As a consequence, few sojourners visiting HA with mild or asymptomatic infection may have an enhanced susceptibility to high-altitude pulmonary edema (HAPE), an acute but severe altitude sickness. It develops upon rapid ascent to altitudes above 2500 m, in otherwise healthy individuals. Though HAPE has been studied extensively, an elaborate exploration of the HA disease burden and the potential risk factors associated with its manifestation are poorly described. The present review discusses respiratory tract infection (RTI) as an unfamiliar but important risk factor in enhancing HAPE susceptibility in sojourners for two primary reasons. First, the symptoms of RTI s resemble those of HAPE. Secondly, the imbalanced pathways contributing to vascular dysfunction in HAPE also participate in the pathogenesis of the infectious processes. These pathways have a crucial role in shaping host response against viral and bacterial infections and may further worsen the clinical outcomes at HA. Respiratory tract pathogenic agents, if screened in HAPE patients, can help in ascertaining their role in disease risk and also point toward their association with the disease severity. The microbial screenings and identifications of pathogens with diseases are the foundation for describing potential molecular mechanisms underlying host response to the microbial challenge. The prior knowledge of such infections may predict the manifestation of disease etiology and provide better therapeutic options.
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Affiliation(s)
- Raushni Choudhary
- Cardio Respiratory Disease Unit, CSIR-Institute of Genomics and Integrative Biology, Delhi 110007, India
| | - Swati Kumari
- Cardio Respiratory Disease Unit, CSIR-Institute of Genomics and Integrative Biology, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manzoor Ali
- Cardio Respiratory Disease Unit, CSIR-Institute of Genomics and Integrative Biology, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Tashi Thinlas
- Department of Medicine, Sonam Norboo Memorial Hospital, Leh 194101, India
| | - Stanzen Rabyang
- Department of Medicine, Sonam Norboo Memorial Hospital, Leh 194101, India
| | - Aastha Mishra
- Cardio Respiratory Disease Unit, CSIR-Institute of Genomics and Integrative Biology, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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18
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Xia A, Wan J, Li X, Quan J, Chen X, Xu Z, Jiao X. M. tb Rv0927c suppresses the activation of HIF-1α pathway through VHL-mediated ubiquitination and NF-κB/COX-2 pathway to enhance mycobacteria survival. Microbiol Res 2024; 278:127529. [PMID: 37922696 DOI: 10.1016/j.micres.2023.127529] [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: 07/18/2023] [Revised: 09/24/2023] [Accepted: 10/15/2023] [Indexed: 11/07/2023]
Abstract
Mycobacterium tuberculosis (M. tuberculosis), the causative agent of tuberculosis, employs various effector proteins to target and modulate host defenses. Our previous study showed that M. tuberculosis protein Rv0927c can promote the survival of intracellular mycobacteria, but the underlying mechanisms remain poorly understood. Here, we found that Rv0927c inhibited Mycobacterium smegmatis (M. smegmatis) induced hypoxia-inducible factor-1α (HIF-1α) activation in macrophages, and HIF-1α is required for Rv0927c to promote mycobacteria survival. Western blot analysis showed that Rv0927c promoted the proteasomal degradation of HIF-1α via Von Hippel-Lindau (VHL)-mediated ubiquitination and inhibited the nuclear localization of HIF-1α through the NF-κB/COX-2 pathway, thereby suppressing HIF-1α pathway activation. Furthermore, Rv0927c suppressed the host glycolytic metabolism, which is known to be regulated by HIF-1α and depended on the glycolysis process to promote mycobacterial survival. Our findings provide evidence that Rv0927c inhibits the activation of HIF-1α pathway, allowing pathogens to evade host immune responses, suggesting that targeting Rv0927c or HIF-1α might be a potential anti-tuberculosis therapy.
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Affiliation(s)
- Aihong Xia
- Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Jiaxu Wan
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry Of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China
| | - Xin Li
- Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry Of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China
| | - Juanjuan Quan
- Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Xiang Chen
- Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry Of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China
| | - Zhengzhong Xu
- Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry Of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China.
| | - Xinan Jiao
- Jiangsu Key Laboratory of Zoonosis/Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry Of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China.
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19
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Singhal R, Kotla NK, Solanki S, Huang W, Bell HN, El-Derany MO, Castillo C, Shah YM. Disruption of hypoxia-inducible factor-2α in neutrophils decreases colitis-associated colon cancer. Am J Physiol Gastrointest Liver Physiol 2024; 326:G53-G66. [PMID: 37933447 PMCID: PMC11208019 DOI: 10.1152/ajpgi.00182.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/01/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023]
Abstract
Neutrophils are abundant immune cells in the colon tumor microenvironment. Studies have shown that neutrophils are recruited into hypoxic foci in colon cancer. However, the impact of hypoxia signaling on neutrophil function and its involvement in colon tumorigenesis remain unclear. To address this, we generated mice with a deletion of hypoxia-inducible factor (HIF)-1α or HIF-2α in neutrophils driven by the MRP8Cre (HIF-1αΔNeu) or (HIF-2αΔNeu) and littermate controls. In an azoxymethane (AOM)/dextran sulfate sodium (DSS) model of colon cancer, the disruption of neutrophils-HIF-1α did not result in any significant changes in body weight, colon length, tumor size, proliferation, or burden. However, the disruption of HIF-2α in neutrophils led to a slight increase in body weight, a significant decrease in the number of tumors, and a reduction in tumor size and volume compared with their littermate controls. Histological analysis of colon tissue from mice with HIF-2α-deficient neutrophils revealed notable reductions in proliferation as compared with control mice. In addition, we observed reduced levels of proinflammatory cytokines, such as TNF-α and IL-1β, in neutrophil-specific HIF-2α-deficient mice in both the tumor tissue as well as the neutrophils. Importantly, it is worth noting that the reduced tumorigenesis associated with HIF-2α deficiency in neutrophils was not evident in already established syngeneic tumors or a DSS-induced inflammation model, indicating a potential role of HIF-2α specifically in colon tumorigenesis. In conclusion, we found that the loss of neutrophil-specific HIF-2α slows colon tumor growth and progression by reducing the levels of inflammatory mediators.NEW & NOTEWORTHY Despite the importance of hypoxia and neutrophils in colorectal cancer (CRC), the contribution of neutrophil-specific HIFs to colon tumorigenesis is not known. We describe that neutrophil HIF-1α has no impact on colon cancer, whereas neutrophil HIF-2α loss reduces CRC growth by decreasing proinflammatory and immunosuppressive cytokines. Furthermore, neutrophil HIF-2α does not reduce preestablished tumor growth or inflammation-induced colitis. The present study offers novel potential of neutrophil HIF-2α as a therapeutic target in CRC.
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Affiliation(s)
- Rashi Singhal
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Nikhil Kumar Kotla
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Sumeet Solanki
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Wesley Huang
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
- Cellular and Molecular Biology and Medical Scientist Training Program, University of Michigan, Ann Arbor, Michigan, United States
| | - Hannah N Bell
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Marwa O El-Derany
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
- Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Cristina Castillo
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Yatrik M Shah
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, United States
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, United States
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
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20
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Shi X, Gao F, Zhao X, Pei C, Zhu L, Zhang J, Li C, Li L, Kong X. Role of HIF in fish inflammation. FISH & SHELLFISH IMMUNOLOGY 2023; 143:109222. [PMID: 37956798 DOI: 10.1016/j.fsi.2023.109222] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/15/2023]
Abstract
The hypoxia-inducing factor (HIF) is a central transcription factor in cellular oxygen sensing and regulation. It is common that the inflammation always appears in many diseases, like infectious diseases in fishes, and the inflammation is often accompanied by hypoxia, as a hallmark of inflammation. Besides coordinating cellular responses to low oxygen, HIF-mediated hypoxia signaling pathway is also crucial for immune responses such as the regulations of innate immune cell phenotype and function, as well as metabolic reprogramming under the inflammation. However, the understanding of the molecular mechanisms by which HIFs regulate the inflammatory response in fish is still very limited. Here, we review the characteristics of HIF as well as its roles in innate immune cells and the infections caused by bacteria and viruses. The regulatory effects of HIF on the metabolic reprogramming of innate immune cells are also discussed and the future research directions are outlooked. This paper will serve as a reference for elucidating the molecular mechanism of HIF regulating inflammation and identifying treatment strategies to target HIF for fish disease.
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Affiliation(s)
- Xiaowei Shi
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China; Sanquan Medical College, Henan Province, PR China
| | - Feng Gao
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Xianliang Zhao
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Chao Pei
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Lei Zhu
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Jie Zhang
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Chen Li
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Li Li
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China
| | - Xianghui Kong
- Engineering Lab of Henan Province for Aquatic Animal Disease Control, College of Fisheries, Henan Normal University, Henan Province, PR China.
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21
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Noto JM, Piazuelo MB, Romero-Gallo J, Delgado AG, Suarez G, Akritidou K, Girod Hoffman M, Roa JC, Taylor CT, Peek RM. Targeting hypoxia-inducible factor-1 alpha suppresses Helicobacter pylori-induced gastric injury via attenuation of both cag-mediated microbial virulence and proinflammatory host responses. Gut Microbes 2023; 15:2263936. [PMID: 37828903 PMCID: PMC10578190 DOI: 10.1080/19490976.2023.2263936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 09/24/2023] [Indexed: 10/14/2023] Open
Abstract
Helicobacter pylori-induced inflammation is the strongest known risk factor for gastric adenocarcinoma. Hypoxia-inducible factor-1 (HIF-1α) is a key transcriptional regulator of immunity and carcinogenesis. To examine the role of this mediator within the context of H. pylori-induced injury, we first demonstrated that HIF-1α levels were significantly increased in parallel with the severity of gastric lesions in humans. In interventional studies targeting HIF-1α, H. pylori-infected mice were treated ± dimethyloxalylglycine (DMOG), a prolyl hydroxylase inhibitor that stabilizes HIF-1α. H. pylori significantly increased proinflammatory chemokines/cytokines and inflammation in vehicle-treated mice; however, this was significantly attenuated in DMOG-treated mice. DMOG treatment also significantly decreased function of the H. pylori type IV secretion system (T4SS) in vivo and significantly reduced T4SS-mediated NF-κB activation and IL-8 induction in vitro. These results suggest that prolyl hydroxylase inhibition protects against H. pylori-mediated pathologic responses, and is mediated, in part, via attenuation of H. pylori cag-mediated virulence and suppression of host proinflammatory responses.
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Affiliation(s)
- Jennifer M. Noto
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - M. Blanca Piazuelo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Judith Romero-Gallo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Alberto G. Delgado
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Giovanni Suarez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | | | - Juan Carlos Roa
- Department of Pathology, School of Medicine, Center for Cancer Prevention and Control (CECAN), Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Cormac T. Taylor
- School of Medicine, Systems Biology Ireland and The Conway Institute, University College Dublin, Dublin, Ireland
| | - Richard M. Peek
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
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22
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Tran TT, Eltzschig HK, Yuan X. Therapeutic targeting of hypoxia inducible factor in acute respiratory distress syndrome. J Physiol 2023:10.1113/JP284599. [PMID: 38031820 PMCID: PMC11136894 DOI: 10.1113/jp284599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by bilateral chest infiltration and acute hypoxic respiratory failure. ARDS carries significant morbidity and mortality despite advancements in medical management, calling for the development of novel therapeutic targets. Hypoxia-inducible factor (HIF) is a heterodimeric protein involved in various essential pathways, including metabolic reprogramming, immune modulation, angiogenesis and cell cycle regulation. HIF is routinely degraded in homeostasis conditions via the prolyl hydroxylase domain/von Hippel-Lindau protein pathway. However, HIF is stabilized in ARDS via various mechanisms (oxygen-dependent and independent) as an endogenous protective pathway and plays multifaceted roles in different cell populations. This review focuses on the functional role of HIF and its target genes during ARDS, as well as how HIF has evolved as a therapeutic target in current medical management.
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Affiliation(s)
- Thu T Tran
- Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Holger K Eltzschig
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Xiaoyi Yuan
- Department of Anesthesiology, Critical Care and Pain Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
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23
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Ting KK, Yu P, Dow R, Floro E, Ibrahim H, Scipione CA, Hyduk SJ, Polenz CK, Zaslaver O, Karmaus PW, Fessler MB, Rӧst HL, Ohh M, Tsai S, Winer DA, Woo M, Rocheleau J, Jongstra-Bilen J, Cybulsky MI. Oxidized Low-Density Lipoprotein Accumulation Suppresses Glycolysis and Attenuates the Macrophage Inflammatory Response by Diverting Transcription from the HIF-1α to the Nrf2 Pathway. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1561-1577. [PMID: 37756544 PMCID: PMC10873122 DOI: 10.4049/jimmunol.2300293] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023]
Abstract
Lipid accumulation in macrophages (Mφs) is a hallmark of atherosclerosis, yet how lipid accumulation affects inflammatory responses through rewiring of Mφ metabolism is poorly understood. We modeled lipid accumulation in cultured wild-type mouse thioglycolate-elicited peritoneal Mφs and bone marrow-derived Mφs with conditional (Lyz2-Cre) or complete genetic deficiency of Vhl, Hif1a, Nos2, and Nfe2l2. Transfection studies employed RAW264.7 cells. Mφs were cultured for 24 h with oxidized low-density lipoprotein (oxLDL) or cholesterol and then were stimulated with LPS. Transcriptomics revealed that oxLDL accumulation in Mφs downregulated inflammatory, hypoxia, and cholesterol metabolism pathways, whereas the antioxidant pathway, fatty acid oxidation, and ABC family proteins were upregulated. Metabolomics and extracellular metabolic flux assays showed that oxLDL accumulation suppressed LPS-induced glycolysis. Intracellular lipid accumulation in Mφs impaired LPS-induced inflammation by reducing both hypoxia-inducible factor 1-α (HIF-1α) stability and transactivation capacity; thus, the phenotype was not rescued in Vhl-/- Mφs. Intracellular lipid accumulation in Mφs also enhanced LPS-induced NF erythroid 2-related factor 2 (Nrf2)-mediated antioxidative defense that destabilizes HIF-1α, and Nrf2-deficient Mφs resisted the inhibitory effects of lipid accumulation on glycolysis and inflammatory gene expression. Furthermore, oxLDL shifted NADPH consumption from HIF-1α- to Nrf2-regulated apoenzymes. Thus, we postulate that repurposing NADPH consumption from HIF-1α to Nrf2 transcriptional pathways is critical in modulating inflammatory responses in Mφs with accumulated intracellular lipid. The relevance of our in vitro models was established by comparative transcriptomic analyses, which revealed that Mφs cultured with oxLDL and stimulated with LPS shared similar inflammatory and metabolic profiles with foamy Mφs derived from the atherosclerotic mouse and human aorta.
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Affiliation(s)
- Kenneth K.Y. Ting
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Pei Yu
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Riley Dow
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Eric Floro
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Hisham Ibrahim
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Corey A. Scipione
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Sharon J. Hyduk
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
| | - Chanele K. Polenz
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Olga Zaslaver
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1
| | - Peer W.F. Karmaus
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Michael B. Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Hannes L. Rӧst
- Terrence Donnelly Centre for Cellular & Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1
| | - Michael Ohh
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Sue Tsai
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2RS, Canada
| | - Daniel A. Winer
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Minna Woo
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Division of Endocrinology and Metabolism, Department of Medicine, University Health Network, University of Toronto, Toronto, ON M5S 1A8, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
| | - Jonathan Rocheleau
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Banting and Best Diabetes Centre, University of Toronto, Toronto, ON M5G 2C4, Canada
| | - Jenny Jongstra-Bilen
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Myron I. Cybulsky
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Peter Munk Cardiac Centre, University Health Network, Toronto, ON M5G 2N2, Canada
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24
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Nagawa D, Shimada M, Nakata M, Narita-Kinjo I, Fujita T, Murakami R, Nakamura N, Tomita H. Hypoxia-inducible Factor-1α Suppresses the Innate Immune Response in Cultured Human Proximal Tubular Cells. In Vivo 2023; 37:2437-2446. [PMID: 37905653 PMCID: PMC10621413 DOI: 10.21873/invivo.13349] [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: 07/08/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND/AIM Retinoic acid-inducible gene (RIG)-I like receptors (RLRs) are expressed on renal proximal tubular epithelial cells (RPTECs) in viral nephropathy, indicating the presence of RLR-mediated innate immune responses in RPTECs. Hypoxia is also known to affect innate immunity. This study investigated the effects of hypoxia, and hypoxia-inducible factor (HIF) on innate immunity in RPTECs. MATERIALS AND METHODS Primary human RPTECs were cultured under normoxic or hypoxic conditions and treated with a synthetic analog of double-stranded RNA (polyIC). The expression levels of RIG-I and MDA5, as RLRs, and IFNβ, IL6, and TNFα, as inflammatory mediators were evaluated using quantitative reverse transcription-polymerase chain reaction, western blotting, and lactate dehydrogenase activity (LDH) assays. To further investigate the role of hypoxia, a small interfering RNA was used to knockdown HIF1α. RESULTS Under normoxic conditions, polyIC increased RIG-I, MDA5, and IFNβ mRNA expression in RPTECs by, 9.4±0.4-, 10.8±0.5-, and 4.0±0.1-fold, respectively, compared to control, and by 5.4±0.1-, 7.4±0.1-, and 2.4±0.3-fold, respectively, under hypoxic conditions, the rate of increase was lower than that under normoxic conditions (p<0.01). Protein expression showed a similar trend. Under hypoxic conditions, polyIC treatment with HIF1α knockdown in RPTECs increased RIG-I, MDA5, and IFNβ mRNA expression by 3.1±0.5-, 2.9±0.4-, and 6.1±0.4-fold, respectively, and cytotoxicity, demonstrated by LDH assay, was increased compared to that without knockdown (all p<0.01). CONCLUSION Hypoxia suppresses polyIC-induced RLRs mediated innate immune responses in RPTECs via HIF1α.
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Affiliation(s)
- Daiki Nagawa
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Michiko Shimada
- Community Medicine, Hirosaki University, Graduate School of Medicine, Hirosaki, Japan;
| | - Masamichi Nakata
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ikuyo Narita-Kinjo
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takeshi Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Reiichi Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Norio Nakamura
- Department of Health Sciences, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Stefanache A, Lungu II, Butnariu IA, Calin G, Gutu C, Marcu C, Grierosu C, Bogdan Goroftei ER, Duceac LD, Dabija MG, Popa F, Damir D. Understanding How Minerals Contribute to Optimal Immune Function. J Immunol Res 2023; 2023:3355733. [PMID: 37946846 PMCID: PMC10632063 DOI: 10.1155/2023/3355733] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/16/2023] [Accepted: 09/09/2023] [Indexed: 11/12/2023] Open
Abstract
Sufficient mineral supply is vital not only for the innate immune system but also for the components of the adaptive immune defense, which encompass defense mechanisms against pathogens and the delicate balance of pro- and anti-inflammatory regulation in the long term. Generally, a well-balanced diet is capable of providing the necessary minerals to support the immune system. Nevertheless, specific vulnerable populations should be cautious about obtaining adequate amounts of minerals such as magnesium, zinc, copper, iron, and selenium. Inadequate levels of these minerals can temporarily impair immune competence and disrupt the long-term regulation of systemic inflammation. Therefore, comprehending the mechanisms and sources of these minerals is crucial. In exceptional circumstances, mineral deficiencies may necessitate supplementation; however, excessive intake of supplements can have adverse effects on the immune system and should be avoided. Consequently, any supplementation should be approved by medical professionals and administered in recommended doses. This review emphasizes the crucial significance of minerals in promoting optimal functioning of the immune system. It investigates the indispensable minerals required for immune system function and the regulation of inflammation. Moreover, it delves into the significance of maintaining an optimized intake of minerals from a nutritional standpoint.
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Affiliation(s)
- Alina Stefanache
- “Grigore T. Popa” University of Medicine and Pharmacy, Iasi 700115, Romania
| | - Ionut-Iulian Lungu
- “Grigore T. Popa” University of Medicine and Pharmacy, Iasi 700115, Romania
| | | | - Gabriela Calin
- Faculty of Dental Medicine, “Apollonia” University of Iasi, 11 Pacurari Street, Iasi 700511, Romania
| | - Cristian Gutu
- Faculty of Medicine and Pharmacy, University Dunarea de Jos, 47 Domneasca Street, Galati 800008, Romania
| | - Constantin Marcu
- Faculty of Medicine and Pharmacy, University Dunarea de Jos, 47 Domneasca Street, Galati 800008, Romania
| | - Carmen Grierosu
- Faculty of Dental Medicine, “Apollonia” University of Iasi, 11 Pacurari Street, Iasi 700511, Romania
| | | | - Letitia-Doina Duceac
- Faculty of Medicine and Pharmacy, University Dunarea de Jos, 47 Domneasca Street, Galati 800008, Romania
| | | | - Florina Popa
- Faculty of Medicine and Pharmacy, University Dunarea de Jos, 47 Domneasca Street, Galati 800008, Romania
| | - Daniela Damir
- “Grigore T. Popa” University of Medicine and Pharmacy, Iasi 700115, Romania
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26
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Modi N, Chen Y, Dong X, Hu X, Lau GW, Wilson KT, Peek RM, Chen LF. BRD4 Regulates Glycolysis-Dependent Nos2 Expression in Macrophages Upon H pylori Infection. Cell Mol Gastroenterol Hepatol 2023; 17:292-308.e1. [PMID: 37820788 PMCID: PMC10829522 DOI: 10.1016/j.jcmgh.2023.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND & AIMS Metabolic reprogramming is essential for the activation and functions of macrophages, including bacterial killing and cytokine production. Bromodomain-containing protein 4 (BRD4) has emerged as a critical regulator of innate immune response. However, the potential role of BRD4 in the metabolic reprogramming of macrophage activation upon Helicobacter pylori infection remains unclear. METHODS Bone marrow-derived macrophages (BMDMs) from wild-type (WT) and Brd4-myeloid deletion conditional knockout (Brd4-CKO) mice were infected with H pylori. RNA sequencing was performed to evaluate the differential gene expression between WT and Brd4-deficient BMDMs upon infection. An in vivo model of H pylori infection using WT and Brd4-CKO mice was used to confirm the role of BRD4 in innate immune response to infection. RESULTS Depletion of Brd4 in BMDMs showed impaired H pylori-induced glycolysis. In addition, H pylori-induced expression of glycolytic genes, including Slc2a1 and Hk2, was decreased in Brd4-deficient BMDMs. BRD4 was recruited to the promoters of Slc2a1 and Hk2 via hypoxia-inducible factor-1α, facilitating their expression. BRD4-mediated glycolysis stabilized H pylori-induced nitric oxide synthase (Nos2) messenger RNA to produce nitric oxide. The NO-mediated killing of H pylori decreased in Brd4-deficient BMDMs, which was rescued by pyruvate. Furthermore, Brd4-CKO mice infected with H pylori showed reduced gastric inflammation and increased H pylori colonization with reduced inducible NO synthase expression in gastric macrophages. CONCLUSIONS Our study identified BRD4 as a key regulator of hypoxia-inducible factor-1α-dependent glycolysis and macrophage activation. Furthermore, we show a novel regulatory role of BRD4 in innate immunity through glycolysis to stabilize Nos2 messenger RNA for NO production to eliminate H pylori infection.
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Affiliation(s)
- Nikita Modi
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Yanheng Chen
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Xingchen Dong
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Xiangming Hu
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Gee W Lau
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Keith T Wilson
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee; Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
| | - Richard M Peek
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lin-Feng Chen
- Department of Biochemistry, College of Liberal Arts & Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois.
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Kumar R, Chhikara BS, Er Zeybekler S, Gupta DS, Kaur G, Chhillar M, Aggarwal AK, Rahdar A. Nanotoxicity of multifunctional stoichiometric cobalt oxide nanoparticles (SCoONPs) with repercussions toward apoptosis, necrosis, and cancer necrosis factor (TNF-α) at nano-biointerfaces. Toxicol Res (Camb) 2023; 12:716-740. [PMID: 37915472 PMCID: PMC10615831 DOI: 10.1093/toxres/tfad086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 08/11/2023] [Accepted: 09/03/2023] [Indexed: 11/03/2023] Open
Abstract
Introduction Apoptosis, necrosis, and cancer necrosis factor (TNF-a) are all impacted by the nanotoxicity of multifunctional stoichiometric cobalt oxide nanoparticles (SCoONPs) at nano-biointerfaces. The creation of multi-functional nanoparticles has had a considerable impact on the transport of drugs and genes, nanotheranostics (in-vivo imaging, concurrent diagnostics), interventions for external healing, the creation of nano-bio interfaces, and the instigation of desired changes in nanotherapeutics. Objectives The quantitative structure-activity relationships, chemical transformations, biological interactions as well as toxicological analyses are considered as main objectives. Discrete dimensions of SCoNPs-cell interaction interfaces, their characteristic physical features (size, shape, shell structure, and surface chemistry), impact on cell proliferation and differentiation are the key factors responsible for nanotoxicity. Methods The development of multi-functional nanoparticles has been significant in drug/gene delivery, nanotheranostics (in-vivo imaging, coinciding diagnostics), and external healing interventions, designing a nano-bio interface, as well as inciting desired alterations in nanotherapeutics. Every so often, the cellular uptake of multi-functional cobalt [Co, CoO, Co2(CO)8 and Co3O4] nanoparticles (SCoONPs) influences cellular mechanics and initiates numerous repercussions (oxidative stress, DNA damage, cytogenotoxicity, and chromosomal damage) in pathways, including the generation of dysregulating factors involved in biochemical transformations. Results The concerns and influences of multifunctional SCoNPs on different cell mechanisms (mitochondria impermeability, hydrolysis of ATP, the concentration of Ca2+, impaired calcium clearance, defective autophagy, apoptosis, and necrosis), and interlinked properties (adhesion, motility, and internalization dynamics, role in toxicity, surface hydrophilic and hydrophobicity, biokinetics and biomimetic behaviors of biochemical reactions) have also been summarized. SCoONPs have received a lot of interest among the nanocarriers family because of its advantageous qualities such as biodegradability, biocompatibility, nontoxicity, and nonimmunogenicity. Conclusion Various applications, such as bio-imaging, cell labeling, gene delivery, enhanced chemical stability, and increased biocompatibility, concerning apoptosis, necrosis, and nano-bio interfaces, along with suitable examples. In this analysis, the multi-functional cobalt [Co, CoO, Co2(CO)8 and Co3O4] nanoparticles (SCoNPs) intricacies (cytogenotoxicity, clastogenicity, and immunomodulatory), nanotoxicity, and associated repercussions have been highlighted and explained.
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Affiliation(s)
- Rajiv Kumar
- University of Delhi, Mall Road, New Delhi 110007, India
| | - Bhupender S Chhikara
- Department of Chemistry, Aditi Mahavidyalaya, University of Delhi, Auchandi Road, Bawana, Delhi 110039, India
| | - Simge Er Zeybekler
- Biochemistry Department, Faculty of Science, Ege University, Hastanesi 9/3A 35100 Bornova-Izmir 35100, Turkey
| | - Dhruv Sanjay Gupta
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM’s NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, India
| | - Ginpreet Kaur
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM’s NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, India
| | | | - Anil K Aggarwal
- Department of Chemistry, Shivaji College, University of Delhi, Ring Road, Raja Garden, New Delhi 110027, India
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Sistan va Baluchestan, Zabol 538-98615, Iran
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Thorp EB. Cardiac macrophages and emerging roles for their metabolism after myocardial infarction. J Clin Invest 2023; 133:e171953. [PMID: 37712418 PMCID: PMC10503791 DOI: 10.1172/jci171953] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023] Open
Abstract
Interest in cardioimmunology has reached new heights as the experimental cardiology field works to tap the unrealized potential of immunotherapy for clinical care. Within this space is the cardiac macrophage, a key modulator of cardiac function in health and disease. After a myocardial infarction, myeloid macrophages both protect and harm the heart. To varying degrees, such outcomes are a function of myeloid ontogeny and heterogeneity, as well as functional cellular plasticity. Diversity is further shaped by the extracellular milieu, which fluctuates considerably after coronary occlusion. Ischemic limitation of nutrients constrains the metabolic potential of immune cells, and accumulating evidence supports a paradigm whereby macrophage metabolism is coupled to divergent inflammatory consequences, although experimental evidence for this in the heart is just emerging. Herein we examine the heterogeneous cardiac macrophage response following ischemic injury, with a focus on integrating putative contributions of immunometabolism and implications for therapeutically relevant cardiac injury versus cardiac repair.
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Sharma P, Sri Swetha Victoria V, Praneeth Kumar P, Karmakar S, Swetha M, Reddy A. Cross-talk between insulin resistance and nitrogen species in hypoxia leads to deterioration of tissue and homeostasis. Int Immunopharmacol 2023; 122:110472. [PMID: 37392570 DOI: 10.1016/j.intimp.2023.110472] [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: 12/12/2022] [Revised: 05/19/2023] [Accepted: 06/07/2023] [Indexed: 07/03/2023]
Abstract
Hypoxia has been linked with insulin resistance as it produces changes in the metabolism of the cell; in which the adipocytes impede the insulin receptor tyrosine, phosphorylation, directing at decreased levels of transport of glucose. At this juncture, we are focusing on cross-talk between insulin resistance and nitrogen species in hypoxia, leading to the deterioration of tissue and homeostasis. Physiological levels of nitric oxide play a very crucial role in acting as a priority effector and signaling molecule, arbitrating the body's responses to hypoxia. Both ROS and RNS are associated with a reduction in IRS1 phosphorylation in tyrosine, which leads to reduced levels of IRS1 content and insulin response, which further leads to insulin resistance. Cellular hypoxia is a trigger to inflammatory mediators which signal tissue impairment and initiate survival requirements. But, hypoxia-mediated inflammation act as a protective role by an immune response and promotes wound healing during infection. In this review, we abridge the crosstalk between the inflammation and highlight the dysregulation in physiological consequences due to diabetes mellitus. Finally, we review various treatments available for its related physiological complications.
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Affiliation(s)
- Priyanshy Sharma
- Animal Cell Culture Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nādu, India
| | - V Sri Swetha Victoria
- Animal Cell Culture Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nādu, India
| | - P Praneeth Kumar
- Animal Cell Culture Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nādu, India
| | - Sarbani Karmakar
- Animal Cell Culture Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nādu, India
| | - Mudduluru Swetha
- Animal Cell Culture Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nādu, India
| | - Amala Reddy
- Animal Cell Culture Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nādu, India.
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Akinsulie OC, Shahzad S, Ogunleye SC, Oladapo IP, Joshi M, Ugwu CE, Gbadegoye JO, Hassan FO, Adeleke R, Afolabi Akande Q, Adesola RO. Crosstalk between hypoxic cellular micro-environment and the immune system: a potential therapeutic target for infectious diseases. Front Immunol 2023; 14:1224102. [PMID: 37600803 PMCID: PMC10434535 DOI: 10.3389/fimmu.2023.1224102] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/26/2023] [Indexed: 08/22/2023] Open
Abstract
There are overwhelming reports on the promotional effect of hypoxia on the malignant behavior of various forms of cancer cells. This has been proposed and tested exhaustively in the light of cancer immunotherapy. However, there could be more interesting functions of a hypoxic cellular micro-environment than malignancy. There is a highly intricate crosstalk between hypoxia inducible factor (HIF), a transcriptional factor produced during hypoxia, and nuclear factor kappa B (NF-κB) which has been well characterized in various immune cell types. This important crosstalk shares common activating and inhibitory stimuli, regulators, and molecular targets. Impaired hydroxylase activity contributes to the activation of HIFs. Inflammatory ligands activate NF-κB activity, which leads to the expression of inflammatory and anti-apoptotic genes. The eventual sequelae of the interaction between these two molecular players in immune cells, either bolstering or abrogating functions, is largely cell-type dependent. Importantly, this holds promise for interesting therapeutic interventions against several infectious diseases, as some HIF agonists have helped prevent immune-related diseases. Hypoxia and inflammation are common features of infectious diseases. Here, we highlighted the role of this crosstalk in the light of functional immunity against infection and inflammation, with special focus on various innate and adaptive immune cells. Particularly, we discussed the bidirectional effects of this crosstalk in the regulation of immune responses by monocytes/macrophages, dendritic cells, neutrophils, B cells, and T cells. We believe an advanced understanding of the interplay between HIFs and NF-kB could reveal novel therapeutic targets for various infectious diseases with limited treatment options.
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Affiliation(s)
- Olalekan Chris Akinsulie
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| | - Sammuel Shahzad
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| | - Seto Charles Ogunleye
- College of Veterinary Medicine, Mississippi State University, Starkville, MS, United States
| | - Ifeoluwa Peace Oladapo
- Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| | - Melina Joshi
- Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | - Charles Egede Ugwu
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, United States
| | - Joy Olaoluwa Gbadegoye
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Fasilat Oluwakemi Hassan
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Richard Adeleke
- College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | - Qudus Afolabi Akande
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, United States
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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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32
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Wang F, Wang Z, Tang J. The interactions of Candida albicans with gut bacteria: a new strategy to prevent and treat invasive intestinal candidiasis. Gut Pathog 2023; 15:30. [PMID: 37370138 DOI: 10.1186/s13099-023-00559-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND The gut microbiota plays an important role in human health, as it can affect host immunity and susceptibility to infectious diseases. Invasive intestinal candidiasis is strongly associated with gut microbiota homeostasis. However, the nature of the interaction between Candida albicans and gut bacteria remains unclear. OBJECTIVE This review aimed to determine the nature of interaction and the effects of gut bacteria on C. albicans so as to comprehend an approach to reducing intestinal invasive infection by C. albicans. METHODS This review examined 11 common gut bacteria's interactions with C. albicans, including Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii, Enterococcus faecalis, Staphylococcus aureus, Salmonella spp., Helicobacter pylori, Lactobacillus spp., Bacteroides spp., Clostridium difficile, and Streptococcus spp. RESULTS Most of the studied bacteria demonstrated both synergistic and antagonistic effects with C. albicans, and just a few bacteria such as P. aeruginosa, Salmonella spp., and Lactobacillus spp. demonstrated only antagonism against C. albicans. CONCLUSIONS Based on the nature of interactions reported so far by the literature between gut bacteria and C. albicans, it is expected to provide new ideas for the prevention and treatment of invasive intestinal candidiasis.
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Affiliation(s)
- Fei Wang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, 128 Ruili Road, Shanghai, 200240, China
| | - Zetian Wang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, 128 Ruili Road, Shanghai, 200240, China.
| | - Jianguo Tang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, 128 Ruili Road, Shanghai, 200240, China.
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Qiu B, Yuan P, Du X, Jin H, Du J, Huang Y. Hypoxia inducible factor-1α is an important regulator of macrophage biology. Heliyon 2023; 9:e17167. [PMID: 37484306 PMCID: PMC10361316 DOI: 10.1016/j.heliyon.2023.e17167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/13/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023] Open
Abstract
Hypoxia-inducible factor-1 (HIF-1), a heterodimeric transcription factor composed of the α and β subunits, regulates cellular adaptive responses to hypoxia. Macrophages, which are derived from monocytes, function as antigen-presenting cells that activate various immune responses. HIF-1α regulates the immune response, viability, migration, phenotypic plasticity, and metabolism of macrophages. Specifically, macrophage-derived HIF-1α can prevent excessive pro-inflammatory responses by attenuating the transcriptional activity of nuclear factor-kappa B in vivo and in vitro. HIF-1α modulates macrophage migration by inducing the release of various chemokines and providing necessary energy. HIF-1α promotes macrophage M1 polarization by targeting glucose metabolism. Additionally, HIF-1α induces the upregulation of glycolysis-related enzymes and intermediates of the tricarboxylic acid cycle and pentose phosphate pathway. HIF-1α promotes macrophage apoptosis, necroptosis and reduces autophagy. The current review highlights the mechanisms associated with the regulation of HIF-1α stabilization in macrophages as well as the role of HIF-1α in modulating the physiological functions of macrophages.
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Affiliation(s)
- Bingquan Qiu
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Piaoliu Yuan
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Xiaojuan Du
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Hongfang Jin
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Junbao Du
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
| | - Yaqian Huang
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
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Iacobini C, Vitale M, Pugliese G, Menini S. The "sweet" path to cancer: focus on cellular glucose metabolism. Front Oncol 2023; 13:1202093. [PMID: 37305566 PMCID: PMC10248238 DOI: 10.3389/fonc.2023.1202093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/17/2023] [Indexed: 06/13/2023] Open
Abstract
The hypoxia-inducible factor-1α (HIF-1α), a key player in the adaptive regulation of energy metabolism, and the M2 isoform of the glycolytic enzyme pyruvate kinase (PKM2), a critical regulator of glucose consumption, are the main drivers of the metabolic rewiring in cancer cells. The use of glycolysis rather than oxidative phosphorylation, even in the presence of oxygen (i.e., Warburg effect or aerobic glycolysis), is a major metabolic hallmark of cancer. Aerobic glycolysis is also important for the immune system, which is involved in both metabolic disorders development and tumorigenesis. More recently, metabolic changes resembling the Warburg effect have been described in diabetes mellitus (DM). Scientists from different disciplines are looking for ways to interfere with these cellular metabolic rearrangements and reverse the pathological processes underlying their disease of interest. As cancer is overtaking cardiovascular disease as the leading cause of excess death in DM, and biological links between DM and cancer are incompletely understood, cellular glucose metabolism may be a promising field to explore in search of connections between cardiometabolic and cancer diseases. In this mini-review, we present the state-of-the-art on the role of the Warburg effect, HIF-1α, and PKM2 in cancer, inflammation, and DM to encourage multidisciplinary research to advance fundamental understanding in biology and pathways implicated in the link between DM and cancer.
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Heck-Swain KL, Koeppen M. The Intriguing Role of Hypoxia-Inducible Factor in Myocardial Ischemia and Reperfusion: A Comprehensive Review. J Cardiovasc Dev Dis 2023; 10:jcdd10050215. [PMID: 37233182 DOI: 10.3390/jcdd10050215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
Hypoxia-inducible factors (HIFs) play a crucial role in cellular responses to low oxygen levels during myocardial ischemia and reperfusion injury. HIF stabilizers, originally developed for treating renal anemia, may offer cardiac protection in this context. This narrative review examines the molecular mechanisms governing HIF activation and function, as well as the pathways involved in cell protection. Furthermore, we analyze the distinct cellular roles of HIFs in myocardial ischemia and reperfusion. We also explore potential therapies targeting HIFs, emphasizing their possible benefits and limitations. Finally, we discuss the challenges and opportunities in this research area, underscoring the need for continued investigation to fully realize the therapeutic potential of HIF modulation in managing this complex condition.
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Affiliation(s)
- Ka-Lin Heck-Swain
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Tuebingen, 72076 Tübingen, Germany
| | - Michael Koeppen
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Tuebingen, 72076 Tübingen, Germany
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Quiroga J, Alarcón P, Ramírez MF, Manosalva C, Teuber S, Carretta MD, Burgos RA. d-lactate-induced ETosis in cattle polymorphonuclear leucocytes is dependent on the release of mitochondrial reactive oxygen species and the PI3K/Akt/HIF-1 and GSK-3β pathways. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 145:104728. [PMID: 37164278 DOI: 10.1016/j.dci.2023.104728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/05/2023] [Accepted: 05/06/2023] [Indexed: 05/12/2023]
Abstract
d-lactate is a metabolite originating from bacterial metabolism that accumulates as a result of dietary disturbances in cattle, leading to ruminal acidosis. d-lactate exerts functions as a metabolic signal inducing metabolic reprogramming and extracellular trap (ET) release in polymorphonuclear leucocytes (PMNs). We previously demonstrated that d-lactate induces metabolic reprogramming via hypoxia-induced factor 1 alpha (HIF-1α) stabilization in bovine fibroblast-like synoviocytes (FLSs). In the present study, the role of HIF-1 in ET formation induced by d-lactate was assessed. HIF-1α stabilization in PMNs was controlled by mitochondrial reactive oxygen species (mtROS) release. Furthermore, inhibition of mitochondrial complex I and scavenging of mtROS decreased d-lactate-triggered ETosis. d-lactate-enhanced HIF-1α accumulation was dependent on the PI3K/Akt pathway but independent of GSK-3β activity. Pharmacological blockade of the PI3K/Akt/HIF-1 and GSK-3β axes inhibited d-lactate-triggered ETosis and downregulated PDK1 and LDHA expression. However, only GSK-3β inhibition decreased the expression of glycogen metabolism enzymes and prevented the decline in glycogen stores induced by d-lactate exposure. The results of this study suggest that mtROS, PI3K/Akt/HIF-1 and GSK-3β axes regulate carbohydrate metabolism adaptations that support d-lactate-induced ET formation in cattle.
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Affiliation(s)
- John Quiroga
- Laboratory of Inflammation Pharmacology and Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcón
- Laboratory of Inflammation Pharmacology and Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - María Fernanda Ramírez
- Laboratory of Inflammation Pharmacology and Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Carolina Manosalva
- Institute of Pharmacy, Faculty of Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Stefanie Teuber
- Laboratory of Inflammation Pharmacology and Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - María Daniella Carretta
- Laboratory of Inflammation Pharmacology and Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael Agustín Burgos
- Laboratory of Inflammation Pharmacology and Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile.
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Suresh MV, Balijepalli S, Solanki S, Aktay S, Choudhary K, Shah YM, Raghavendran K. Hypoxia-Inducible Factor 1α and Its Role in Lung Injury: Adaptive or Maladaptive. Inflammation 2023; 46:491-508. [PMID: 36596930 PMCID: PMC9811056 DOI: 10.1007/s10753-022-01769-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/24/2022] [Accepted: 11/18/2022] [Indexed: 01/05/2023]
Abstract
Hypoxia-inducible factors (HIFs) are transcription factors critical for the adaptive response to hypoxia. There is also an essential link between hypoxia and inflammation, and HIFs have been implicated in the dysregulated immune response to various insults. Despite the prevalence of hypoxia in tissue trauma, especially involving the lungs, there remains a dearth of studies investigating the role of HIFs in clinically relevant injury models. Here, we summarize the effects of HIF-1α on the vasculature, metabolism, inflammation, and apoptosis in the lungs and review the role of HIFs in direct lung injuries, including lung contusion, acid aspiration, pneumonia, and COVID-19. We present data that implicates HIF-1α in the context of arguments both in favor and against its role as adaptive or injurious in the propagation of the acute inflammatory response in lung injuries. Finally, we discuss the potential for pharmacological modulation of HIFs as a new class of therapeutics in the modern intensive care unit.
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Affiliation(s)
| | | | - Sumeet Solanki
- Molecular & Integrative Physiology, University of Michigan, Ann Arbor, USA
| | - Sinan Aktay
- Department of Surgery, University of Michigan, Ann Arbor, USA
| | | | - Yatrik M Shah
- Molecular & Integrative Physiology, University of Michigan, Ann Arbor, USA
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Jeknić S, Kudo T, Song JJ, Covert MW. An optimized reporter of the transcription factor hypoxia-inducible factor 1α reveals complex HIF-1α activation dynamics in single cells. J Biol Chem 2023; 299:104599. [PMID: 36907438 PMCID: PMC10124923 DOI: 10.1016/j.jbc.2023.104599] [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: 10/18/2022] [Revised: 02/08/2023] [Accepted: 02/20/2023] [Indexed: 03/13/2023] Open
Abstract
Immune cells adopt a variety of metabolic states to support their many biological functions, which include fighting pathogens, removing tissue debris, and tissue remodeling. One of the key mediators of these metabolic changes is the transcription factor hypoxia-inducible factor 1α (HIF-1α). Single-cell dynamics have been shown to be an important determinant of cell behavior; however, despite the importance of HIF-1α, little is known about its single-cell dynamics or their effect on metabolism. To address this knowledge gap, here we optimized a HIF-1α fluorescent reporter and applied it to study single-cell dynamics. First, we showed that single cells are likely able to differentiate multiple levels of prolyl hydroxylase inhibition, a marker of metabolic change, via HIF-1α activity. We then applied a physiological stimulus known to trigger metabolic change, interferon-γ, and observed heterogeneous, oscillatory HIF-1α responses in single cells. Finally, we input these dynamics into a mathematical model of HIF-1α-regulated metabolism and discovered a profound difference between cells exhibiting high versus low HIF-1α activation. Specifically, we found cells with high HIF-1α activation are able to meaningfully reduce flux through the tricarboxylic acid cycle and show a notable increase in the NAD+/NADH ratio compared with cells displaying low HIF-1α activation. Altogether, this work demonstrates an optimized reporter for studying HIF-1α in single cells and reveals previously unknown principles of HIF-1α activation.
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Affiliation(s)
- Stevan Jeknić
- Department of Bioengineering, Stanford University, Stanford, California, USA
| | - Takamasa Kudo
- Department of Chemical and Systems Biology, Stanford University, Stanford, California, USA
| | - Joanna J Song
- Department of Bioengineering, Stanford University, Stanford, California, USA
| | - Markus W Covert
- Department of Bioengineering, Stanford University, Stanford, California, USA.
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Vanderhaeghen T, Timmermans S, Eggermont M, Watts D, Vandewalle J, Wallaeys C, Nuyttens L, De Temmerman J, Hochepied T, Dewaele S, Berghe JV, Sanders N, Wielockx B, Beyaert R, Libert C. The impact of hepatocyte-specific deletion of hypoxia-inducible factors on the development of polymicrobial sepsis with focus on GR and PPARα function. Front Immunol 2023; 14:1124011. [PMID: 37006237 PMCID: PMC10060827 DOI: 10.3389/fimmu.2023.1124011] [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: 12/14/2022] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
IntroductionPolymicrobial sepsis causes acute anorexia (loss of appetite), leading to lipolysis in white adipose tissue and proteolysis in muscle, and thus release of free fatty acids (FFAs), glycerol and gluconeogenic amino acids. Since hepatic peroxisome proliferator-activated receptor alpha (PPARα) and glucocorticoid receptor (GR) quickly lose function in sepsis, these metabolites accumulate (causing toxicity) and fail to yield energy-rich molecules such as ketone bodies (KBs) and glucose. The mechanism of PPARα and GR dysfunction is not known.Methods & resultsWe investigated the hypothesis that hypoxia and/or activation of hypoxia inducible factors (HIFs) might play a role in these issues with PPARα and GR. After cecal ligation and puncture (CLP) in mice, leading to lethal polymicrobial sepsis, bulk liver RNA sequencing illustrated the induction of the genes encoding HIF1α and HIF2α, and an enrichment of HIF-dependent gene signatures. Therefore, we generated hepatocyte-specific knock-out mice for HIF1α, HIF2α or both, and a new HRE-luciferase reporter mouse line. After CLP, these HRE-luciferase reporter mice show signals in several tissues, including the liver. Hydrodynamic injection of an HRE-luciferase reporter plasmid also led to (liver-specific) signals in hypoxia and CLP. Despite these encouraging data, however, hepatocyte-specific HIF1α and/or HIF2α knock-out mice suggest that survival after CLP was not dependent on the hepatocyte-specific presence of HIF proteins, which was supported by measuring blood levels of glucose, FFAs, and KBs. The HIF proteins were also irrelevant in the CLP-induced glucocorticoid resistance, but we found indications that the absence of HIF1α in hepatocytes causes less inactivation of PPARα transcriptional function.ConclusionWe conclude that HIF1α and HIF2α are activated in hepatocytes in sepsis, but their contribution to the mechanisms leading to lethality are minimal.
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Affiliation(s)
- Tineke Vanderhaeghen
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Steven Timmermans
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Melanie Eggermont
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Deepika Watts
- Department of Clinical Pathobiochemistry, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
- Deutsche Forschungsgemeinschaft (DFG) Research Centre and Cluster of Excellence for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Jolien Vandewalle
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Charlotte Wallaeys
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Louise Nuyttens
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Joyca De Temmerman
- Department of Nutrition, Genetics, and Ethology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Department of Pathology, Bacteriology, and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | - Tino Hochepied
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sylviane Dewaele
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Joke Vanden Berghe
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Niek Sanders
- Department of Nutrition, Genetics, and Ethology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
- Department of Pathology, Bacteriology, and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | - Ben Wielockx
- Department of Clinical Pathobiochemistry, Institute for Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
- Deutsche Forschungsgemeinschaft (DFG) Research Centre and Cluster of Excellence for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
| | - Rudi Beyaert
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Claude Libert
- Flanders Institute for Biotechnology (VIB) Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- *Correspondence: Claude Libert,
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Missiaen R, Lesner NP, Simon MC. HIF: a master regulator of nutrient availability and metabolic cross-talk in the tumor microenvironment. EMBO J 2023; 42:e112067. [PMID: 36808622 PMCID: PMC10015374 DOI: 10.15252/embj.2022112067] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 02/22/2023] Open
Abstract
A role for hypoxia-inducible factors (HIFs) in hypoxia-dependent regulation of tumor cell metabolism has been thoroughly investigated and covered in reviews. However, there is limited information available regarding HIF-dependent regulation of nutrient fates in tumor and stromal cells. Tumor and stromal cells may generate nutrients necessary for function (metabolic symbiosis) or deplete nutrients resulting in possible competition between tumor cells and immune cells, a result of altered nutrient fates. HIF and nutrients in the tumor microenvironment (TME) affect stromal and immune cell metabolism in addition to intrinsic tumor cell metabolism. HIF-dependent metabolic regulation will inevitably result in the accumulation or depletion of essential metabolites in the TME. In response, various cell types in the TME will respond to these hypoxia-dependent alterations by activating HIF-dependent transcription to alter nutrient import, export, and utilization. In recent years, the concept of metabolic competition has been proposed for critical substrates, including glucose, lactate, glutamine, arginine, and tryptophan. In this review, we discuss how HIF-mediated mechanisms control nutrient sensing and availability in the TME, the competition for nutrients, and the metabolic cross-talk between tumor and stromal cells.
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Affiliation(s)
- Rindert Missiaen
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicholas P Lesner
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - M Celeste Simon
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
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41
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Cunha PP, Bargiela D, Minogue E, Krause LCM, Barbieri L, Brombach C, Gojkovic M, Marklund E, Pietsch S, Foskolou I, Branco CM, Veliça P, Johnson RS. Infiltration of Tumors Is Regulated by T cell-Intrinsic Nitric Oxide Synthesis. Cancer Immunol Res 2023; 11:351-363. [PMID: 36574610 PMCID: PMC9975666 DOI: 10.1158/2326-6066.cir-22-0387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 09/17/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
Nitric oxide (NO) is a signaling molecule produced by NO synthases (NOS1-3) to control processes such as neurotransmission, vascular permeability, and immune function. Although myeloid cell-derived NO has been shown to suppress T-cell responses, the role of NO synthesis in T cells themselves is not well understood. Here, we showed that significant amounts of NO were synthesized in human and murine CD8+ T cells following activation. Tumor growth was significantly accelerated in a T cell-specific, Nos2-null mouse model. Genetic deletion of Nos2 expression in murine T cells altered effector differentiation, reduced tumor infiltration, and inhibited recall responses and adoptive cell transfer function. These data show that endogenous NO production plays a critical role in T cell-mediated tumor immunity.
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Affiliation(s)
- Pedro P Cunha
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - David Bargiela
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Eleanor Minogue
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Lena C M Krause
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Laura Barbieri
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom.,Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden
| | - Carolin Brombach
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden
| | - Milos Gojkovic
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden
| | - Emilia Marklund
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden
| | - Sandra Pietsch
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Iosifina Foskolou
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom
| | - Cristina M Branco
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, United Kingdom
| | - Pedro Veliça
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden
| | - Randall S Johnson
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, United Kingdom.,Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Sweden
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42
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Seim GL, John SV, Arp NL, Fang Z, Pagliarini DJ, Fan J. Nitric oxide-driven modifications of lipoic arm inhibit α-ketoacid dehydrogenases. Nat Chem Biol 2023; 19:265-274. [PMID: 36266351 PMCID: PMC9974485 DOI: 10.1038/s41589-022-01153-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 08/31/2022] [Indexed: 12/30/2022]
Abstract
Pyruvate dehydrogenase complex (PDHC) and oxoglutarate dehydrogenase complex (OGDC), which belong to the mitochondrial α-ketoacid dehydrogenase family, play crucial roles in cellular metabolism. These multi-subunit enzyme complexes use lipoic arms covalently attached to their E2 subunits to transfer an acyl group to coenzyme A (CoA). Here, we report a novel mechanism capable of substantially inhibiting PDHC and OGDC: reactive nitrogen species (RNS) can covalently modify the thiols on their lipoic arms, generating a series of adducts that block catalytic activity. S-Nitroso-CoA, a product between RNS and the E2 subunit's natural substrate, CoA, can efficiently deliver these modifications onto the lipoic arm. We found RNS-mediated inhibition of PDHC and OGDC occurs during classical macrophage activation, driving significant rewiring of cellular metabolism over time. This work provides a new mechanistic link between RNS and mitochondrial metabolism with potential relevance for numerous physiological and pathological conditions in which RNS accumulate.
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Affiliation(s)
- Gretchen L Seim
- Morgridge Institute for Research, Madison, WI, USA
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Steven V John
- Morgridge Institute for Research, Madison, WI, USA
- Cellular and Molecular Biology Graduate Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Nicholas L Arp
- Morgridge Institute for Research, Madison, WI, USA
- Cellular and Molecular Biology Graduate Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Zixiang Fang
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA
| | - David J Pagliarini
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO, USA
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - Jing Fan
- Morgridge Institute for Research, Madison, WI, USA.
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, USA.
- Cellular and Molecular Biology Graduate Program, University of Wisconsin-Madison, Madison, WI, USA.
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43
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Schlegel C, Liu K, Spring B, Dietz S, Poets CF, Hudalla H, Lajqi T, Köstlin-Gille N, Gille C. Decreased expression of hypoxia-inducible factor 1α (HIF-1α) in cord blood monocytes under anoxia. Pediatr Res 2023; 93:870-877. [PMID: 35906309 PMCID: PMC10033401 DOI: 10.1038/s41390-022-02193-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/24/2022] [Accepted: 06/28/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Infections are a major cause for morbidity and mortality in neonates; however, the underling mechanisms for increased infection susceptibility are incompletely understood. Hypoxia, which is present in inflamed tissues, has been identified as an important activation signal for innate immune cells in adults and is mainly mediated by hypoxia-inducible factor 1α (HIF-1α). Fetal tissue pO2 physiologically is low but rises immediately after birth. METHODS In this study, the effect of low oxygen partial pressure (pO2) on HIF-1α expression and its targets phagocytosis, reactive oxygen species (ROS) production and vascular endothelial growth factor (VEGF) secretion was compared in vitro between immune cells from adult peripheral blood and cord blood using anoxia, HIF-1α stabilizer desferroxamin (DFO) and E. coli as stimuli. RESULTS We show that anoxia-induced HIF-1α protein accumulation, phagocytosis, ROS-production and VEGF-expression were greatly diminished in cord blood compared to adult cells. E. coli led to HIF-1α gene expression in adult and cord blood immune cells; however, cord blood cells failed to accumulate HIF-1α protein and VEGF upon E. coli stimulation. CONCLUSIONS Taken together, our results show a diminished activation of cord blood immune cells by low pO2, which might contribute to impaired reactivity in the context of infection. IMPACT Neonatal immune cells do not accumulate HIF-1α under low oxygen partial pressure leading to decreased phagocytosis and decreased ROS production. We demonstrate a previously unknown mechanism of reduced activation of neonatal immune cells in the context of an inflammatory response. This could contribute to the increased susceptibility of newborns and preterm infants to infection.
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Affiliation(s)
- Christiane Schlegel
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Kai Liu
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Bärbel Spring
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Stefanie Dietz
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
- Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
| | - Christian F Poets
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Hannes Hudalla
- Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
| | - Trim Lajqi
- Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
| | - Natascha Köstlin-Gille
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany.
- Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany.
| | - Christian Gille
- Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
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Abstract
Candida auris is an emerging multidrug-resistant fungal pathogen that can cause life-threatening infections in humans. Unlike other Candida species that colonize the gut, C. auris efficiently colonizes the skin and contaminates the patient's environment, resulting in rapid nosocomial transmission and outbreaks of systemic infections. As the largest organ of the body, the skin harbors beneficial microbiota that play a critical role to protect from invading pathogens. However, the role of skin microbiota in the colonization and pathogenesis of C. auris remains to be explored. With this perspective, we review and discuss recent insights into skin microbiota and their potential interactions with the immune system in the context of C. auris skin colonization. Understanding microbiota, C. auris, and host interactions in the skin is important to develop microbiome-based therapeutic approaches to prevent and treat this emerging fungal pathogen in humans.
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Korchagina AA, Koroleva E, Tumanov AV. Innate Lymphoid Cell Plasticity in Mucosal Infections. Microorganisms 2023; 11:461. [PMID: 36838426 PMCID: PMC9967737 DOI: 10.3390/microorganisms11020461] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
Mucosal tissue homeostasis is a dynamic process that involves multiple mechanisms including regulation of innate lymphoid cells (ILCs). ILCs are mostly tissue-resident cells which are critical for tissue homeostasis and immune response against pathogens. ILCs can sense environmental changes and rapidly respond by producing effector cytokines to limit pathogen spread and initiate tissue recovery. However, dysregulation of ILCs can also lead to immunopathology. Accumulating evidence suggests that ILCs are dynamic population that can change their phenotype and functions under rapidly changing tissue microenvironment. However, the significance of ILC plasticity in response to pathogens remains poorly understood. Therefore, in this review, we discuss recent advances in understanding the mechanisms regulating ILC plasticity in response to intestinal, respiratory and genital tract pathogens. Key transcription factors and lineage-guiding cytokines regulate this plasticity. Additionally, we discuss the emerging data on the role of tissue microenvironment, gut microbiota, and hypoxia in ILC plasticity in response to mucosal pathogens. The identification of new pathways and molecular mechanisms that control functions and plasticity of ILCs could uncover more specific and effective therapeutic targets for infectious and autoimmune diseases where ILCs become dysregulated.
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Affiliation(s)
| | | | - Alexei V. Tumanov
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr., San Antonio, TX 78229, USA
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46
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Sato T, Takeda N. The roles of HIF-1α signaling in cardiovascular diseases. J Cardiol 2023; 81:202-208. [PMID: 36127212 DOI: 10.1016/j.jjcc.2022.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 12/29/2022]
Abstract
Oxygen is essential for living organisms. Molecular oxygen binds to hemoglobin and is delivered to every organ in the body. In several cardiovascular diseases or anemia, local oxygen tension drops below its physiological level and tissue hypoxia develops. In such conditions, the expression of hypoxia-responsive genes increases to alleviate the respective condition. The hypoxia-responsive genes include the genes coding erythropoietin (EPO), vascular endothelial growth factor-A, and glycolytic enzymes. Hypoxia-inducible factor (HIF)-1α, HIF-2α, and HIF-3α are transcription factors that regulate the hypoxia-responsive genes. The HIF-α proteins are continuously degraded by an oxygen-dependent degrading pathway involving HIF-prolyl hydroxylases (HIF-PHs) and von Hippel-Lindau tumor suppressor protein. However, upon hypoxia, this degradation ceases and the HIF-α proteins form heterodimers with HIF-1β (a constitutive subunit of HIF), which results in the induction of hypoxia responsive genes. HIF-1α and HIF-2α are potential therapeutic targets for renal anemia, where EPO production is impaired due to chronic kidney diseases. Small molecule HIF-PH inhibitors are currently used to activate HIF-α signaling and to increase plasma hemoglobin levels by restoring EPO production. In this review, we will discuss the current understanding of the roles of the HIF-α signaling pathway in cardiovascular diseases. This will include the roles of HIF-1α in cardiomyocytes as well as in stromal cells including macrophages.
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Affiliation(s)
- Tatsuyuki Sato
- Division of Cardiology and Metabolism, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
| | - Norihiko Takeda
- Division of Cardiology and Metabolism, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan.
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47
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Pereverzeva L, Otto NA, Peters-Sengers H, Roelofs JJTH, de Vos AF, van der Poll T. Role of Hypoxia-inducible factor 1α in host defense during pneumococcal pneumonia. Pathog Dis 2023; 81:6939823. [PMID: 36535641 DOI: 10.1093/femspd/ftac047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/10/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Hypoxia-inducible factor (HIF)1α is a transcription factor involved in cellular metabolism and regulation of immune cell effector functions. Here, we studied the role of HIF1α in myeloid cells during pneumonia caused by the major causative pathogen, Streptococcus pneumoniae (Spneu). Mice deficient for HIF1α in myeloid cells (LysMcreHif1αfl/fl) were generated to study the in vitro responsiveness of bone marrow-derived macrophages (BMDMs) and alveolar macrophages (AMs) to the Gram-positive bacterial wall component lipoteichoic acid (LTA) and heat-killed Spneu, and the in vivo host response after infection with Spneu via the airways. Both BMDMs and AMs released more lactate upon stimulation with LTA or Spneu, indicative of enhanced glycolysis; HIF1α-deficiency in these cells was associated with diminished lactate release. In BMDMs, HIF1α-deficiency resulted in reduced secretion of tumor necrosis factor (TNF)α and interleukin (IL)-6 upon activation with Spneu but not LTA, while HIF1α-deficient AMs secreted less TNFα and IL-6 in response to LTA, and TNFα after Spneu stimulation. However, no difference was found in the host response of LysMcreHif1αfl/fl mice after Spneu infection as compared to controls. Similar in vivo findings were obtained in neutrophil (Mrp8creHif1αfl/fl) HIF1α-deficient mice. These data suggest that myeloid HIF1α is dispensable for the host defense during pneumococcal pneumonia.
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Affiliation(s)
- Liza Pereverzeva
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Natasja A Otto
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Hessel Peters-Sengers
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Joris J T H Roelofs
- Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.,Department of Pathology, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Alex F de Vos
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Tom van der Poll
- Center of Experimental & Molecular Medicine, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.,Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands.,Division of Infectious Diseases, Amsterdam University Medical Centers, Location Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
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48
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del Fresno C, Schulte LN, López-Collazo E. Editorial: Role of hypoxia-inducible factors in metabolic immune cell adaptation during sepsis. Front Immunol 2023; 14:1194504. [PMID: 37143647 PMCID: PMC10151767 DOI: 10.3389/fimmu.2023.1194504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 05/06/2023] Open
Affiliation(s)
- Carlos del Fresno
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Immunomodulation Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
- *Correspondence: Carlos del Fresno, ; Leon Nicolas Schulte, ; Eduardo López-Collazo,
| | - Leon Nicolas Schulte
- Institute for Lung Research, Faculty of Medicine, University of Marburg, Marburg, Germany
- German Center for Lung Research (DZL), Giessen, Germany
- *Correspondence: Carlos del Fresno, ; Leon Nicolas Schulte, ; Eduardo López-Collazo,
| | - Eduardo López-Collazo
- The Innate Immune Response Group, Hospital la Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain
- Tumour Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
- *Correspondence: Carlos del Fresno, ; Leon Nicolas Schulte, ; Eduardo López-Collazo,
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Zhang Y, Shen W, Ding J, Gao X, Wu X, Zhu J. Comparative Transcriptome Analysis of Head Kidney of Aeromonas hydrophila-infected Hypoxia-tolerant and Normal Large Yellow Croaker. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:1039-1054. [PMID: 36129638 DOI: 10.1007/s10126-022-10158-4] [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: 06/18/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
The large yellow croaker (Larimichthys crocea) is one of the most economically important marine fish on the southeast coast of China and much of its yield is usually lost by hypoxia. To address this problem and lay a foundation for culturing a new strain of large yellow croaker with hypoxia tolerance, our research group screened a hypoxia-tolerant population of L. crocea. Surprisingly, we also found that hypoxia-tolerant population exhibited higher survival when infected with pathogens compared to the normal population during the farming operation. In order to understand the mechanism underlying the higher survival rate of the hypoxia-tolerant population and enrich the head kidney immune mechanism of L. crocea infected with pathogens, we compared and analyzed the head kidney transcriptome of the hypoxia-tolerant and normal individuals under Aeromonas hydrophila infection. We obtained 159.68 GB high-quality reads, of which more than 87.61% were successfully localized to the reference genome of L. crocea. KEGG analysis revealed differentially expressed genes in the signaling pathways involving immunity, cell growth and death, transport and catabolism, and metabolism. Among these, the toll-like receptor signaling pathway, Nod-like receptor signaling pathway, cytokine-cytokine receptor interaction, phagosome, apoptosis, and OXPHOS pathways were enriched in both groups after infection compared to before, and were enriched in infected tolerant individuals compared to normal individuals. In addition, we found that the expression of hif1α and its downstream genes were higher in the hypoxia-sensitive group of fish than in the normal group. In conclusion, our results showed some signaling pathways and hub genes, which may participate in A. hydrophila defense in the head kidney of two populations, and may contribute to the higher survival rate in the hypoxia-tolerant population. Overall, these findings increase our understanding of the defense mechanism within the head kidney of L. crocea under A. hydrophila infection, and suggest a preliminary hypothesis for why hypoxia-tolerant individuals may exhibit a higher survival rates after infection. Our study provides scientific evidence for the breeding of a new hypoxia-tolerant strain of L. crocea for aquaculture.
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Affiliation(s)
- Yibo Zhang
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Weiliang Shen
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China.
| | - Jie Ding
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Xinming Gao
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
| | - Xiongfei Wu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, Ningbo Academy of Oceanology and Fishery, Ningbo, Zhejiang, China
| | - Junquan Zhu
- Key Laboratory of Aquacultural Biotechnology Ministry of Education, College of Marine Sciences, Ningbo University, Ningbo, Zhejiang, China
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Park HE, Lee W, Choi S, Jung M, Shin MK, Shin SJ. Modulating macrophage function to reinforce host innate resistance against Mycobacterium avium complex infection. Front Immunol 2022; 13:931876. [PMID: 36505429 PMCID: PMC9730288 DOI: 10.3389/fimmu.2022.931876] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 10/21/2022] [Indexed: 11/25/2022] Open
Abstract
Mycobacterium avium complex (MAC) is the main causative agent of infectious diseases in humans among nontuberculous mycobacteria (NTM) that are ubiquitous organisms found in environmental media such as soil as well as in domestic and natural waters. MAC is a primary causative agent of NTM-lung disease that threaten immunocompromised or structural lung disease patients. The incidence and the prevalence of M. tuberculosis infection have been reduced, while MAC infections and mortality rates have increased, making it a cause of global health concern. The emergence of drug resistance and the side effects of long-term drug use have led to a poor outcome of treatment regimens against MAC infections. Therefore, the development of host-directed therapy (HDT) has recently gained interest, aiming to accelerate mycobacterial clearance and reversing lung damage by employing the immune system using a novel adjuvant strategy to improve the clinical outcome of MAC infection. Therefore, in this review, we discuss the innate immune responses that contribute to MAC infection focusing on macrophages, chief innate immune cells, and host susceptibility factors in patients. We also discuss potential HDTs that can act on the signaling pathway of macrophages, thereby contributing to antimycobacterial activity as a part of the innate immune response during MAC infection. Furthermore, this review provides new insights into MAC infection control that modulates and enhances macrophage function, promoting host antimicrobial activity in response to potential HDTs and thus presenting a deeper understanding of the interactions between macrophages and MACs during infection.
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Affiliation(s)
- Hyun-Eui Park
- Department of Microbiology and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, South Korea
| | - Wonsik Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Sangwon Choi
- Department of Microbiology, Institute for Immunology and Immunological Disease, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, South Korea
| | - Myunghwan Jung
- Department of Microbiology and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, South Korea
| | - Min-Kyoung Shin
- Department of Microbiology and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, South Korea,*Correspondence: Min-Kyoung Shin, ; Sung Jae Shin,
| | - Sung Jae Shin
- Department of Microbiology, Institute for Immunology and Immunological Disease, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, South Korea,*Correspondence: Min-Kyoung Shin, ; Sung Jae Shin,
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