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Zhang J, Liu Y, Zhi X, Xu L, Tao J, Cui D, Liu TF. Tryptophan catabolism via the kynurenine pathway regulates infection and inflammation: from mechanisms to biomarkers and therapies. Inflamm Res 2024; 73:979-996. [PMID: 38592457 DOI: 10.1007/s00011-024-01878-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND L-Tryptophan (L-Trp), an essential amino acid, is the only amino acid whose level is regulated specifically by immune signals. Most proportions of Trp are catabolized via the kynurenine (Kyn) pathway (KP) which has evolved to align the food availability and environmental stimulation with the host pathophysiology and behavior. Especially, the KP plays an indispensable role in balancing the immune activation and tolerance in response to pathogens. SCOPE OF REVIEW In this review, we elucidate the underlying immunological regulatory network of Trp and its KP-dependent catabolites in the pathophysiological conditions by participating in multiple signaling pathways. Furthermore, the KP-based regulatory roles, biomarkers, and therapeutic strategies in pathologically immune disorders are summarized covering from acute to chronic infection and inflammation. MAJOR CONCLUSIONS The immunosuppressive effects dominate the functions of KP induced-Trp depletion and KP-produced metabolites during infection and inflammation. However, the extending minor branches from the KP are not confined to the immune tolerance, instead they go forward to various functions according to the specific condition. Nevertheless, persistent efforts should be made before the clinical use of KP-based strategies to monitor and cure infectious and inflammatory diseases.
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Affiliation(s)
- Jingpu Zhang
- Scientific Research Center, Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Highway, Shanghai, 201508, People's Republic of China.
| | - Yanlei Liu
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Xiao Zhi
- Shanghai Institute of Virology, Shanghai Jiao Tong University School of Medicine, 227 South Chongqing Road, Shanghai, 200025, People's Republic of China
| | - Li Xu
- Scientific Research Center, Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Highway, Shanghai, 201508, People's Republic of China
| | - Jie Tao
- Scientific Research Center, Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Highway, Shanghai, 201508, People's Republic of China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Tie Fu Liu
- Scientific Research Center, Shanghai Public Health Clinical Center, Fudan University, 2901 Caolang Highway, Shanghai, 201508, People's Republic of China.
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Guo L, Zaharie SD, Marceline van Furth A, van der Wel NN, Grootemaat AE, Zhang L, Bugiani M, Kruger M, van der Kuip M, Lutter R. Marked IDO2 expression and activity related to autophagy and apoptosis in brain tissue of fatal tuberculous meningitis. Tuberculosis (Edinb) 2024; 146:102495. [PMID: 38460493 DOI: 10.1016/j.tube.2024.102495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/02/2024] [Accepted: 02/19/2024] [Indexed: 03/11/2024]
Abstract
In about 1% of tuberculosis (TB) patients, Mycobacterium tuberculosis (M. tuberculosis) can disseminate to the meninges, causing tuberculous meningitis (TBM) with mortality rate up to 60%. Chronic granulomatous inflammation (non-necrotizing and necrotizing) in the brain is the histological hallmark of TBM. The tryptophan-catabolizing enzyme indoleamine 2,3-dioxygenase 1 (IDO1) and the generated kynurenine metabolites exert major effector functions relevant to TB granuloma functioning. Here we have assessed immunohistochemically IDO1 expression and activity and its effector function and that of its isoform, IDO2, in post-mortem brain tissue of patients that demised with neurotuberculosis. We also related these findings to brain tissue of fatal/severe COVID-19. In this study, IDO1 and IDO2 were abundantly expressed and active in tuberculoid granulomas and were associated with the presence of M. tuberculosis as well as markers of autophagy and apoptosis. Like in fatal/severe COVID-19, IDO2 was also prominent in specific brain regions, such as the inferior olivary nucleus of medulla oblongata and cerebellum, but not associated with granulomas or with M. tuberculosis. Spatially associated apoptosis was observed in TBM, whereas in fatal COVID-19 autophagy dominated. Together, our findings highlight IDO2 as a potentially relevant effector enzyme in TBM, which may relate to the symptomology of TBM.
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Affiliation(s)
- Lihui Guo
- Department of Experimental Immunology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105, AZ, the Netherlands.
| | - Stefan-Dan Zaharie
- Department of Anatomical Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa and National Health Laboratory Services, Francie Van Zijl Dr, Parow, Tygerberg Hospital, Cape Town, 7505, South Africa
| | - A Marceline van Furth
- Department of Pediatric Infectious Diseases and Immunology, Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, the Netherlands
| | - Nicole N van der Wel
- Electron Microscopy Center Amsterdam, Department of Medical Biology, Amsterdam UMC, Location Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Anita E Grootemaat
- Electron Microscopy Center Amsterdam, Department of Medical Biology, Amsterdam UMC, Location Academic Medical Center, Meibergdreef 9, 1105 AZ, Amsterdam, the Netherlands
| | - Lin Zhang
- Neuropsychiatric Disorders Lab, Neuroimmunology Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Marianna Bugiani
- Department of Pathology, Amsterdam UMC, Location VU University Medical Center, De Boelelaan 1117, 1081, HV Amsterdam, the Netherlands
| | - Mariana Kruger
- Department of Pediatrics, Faculty of Health Sciences, Stellenbosch University and Tygerberg Hospital, Francie van Zijl Dr, Parow, Bellville, Cape Town, 7505, South Africa
| | - Martijn van der Kuip
- Department of Pediatric Infectious Diseases and Immunology, Amsterdam Infection & Immunity Institute, Amsterdam University Medical Centers, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, the Netherlands
| | - René Lutter
- Department of Experimental Immunology, Amsterdam UMC, Location Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, Amsterdam, 1105, AZ, the Netherlands; Pulmonary Medicine, Amsterdam UMC, Location Academic Medical Center, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
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3
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Gatechompol S, Lutter R, Vaz FM, Ubolyam S, Avihingsanon A, Kerr SJ, van Leth F, Cobelens F. The plasma kynurenine-to-tryptophan ratio as a biomarker of tuberculosis disease in people living with HIV on antiretroviral therapy: an exploratory nested case-control study. BMC Infect Dis 2024; 24:372. [PMID: 38565993 PMCID: PMC10988902 DOI: 10.1186/s12879-024-09258-4] [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: 09/28/2023] [Accepted: 03/26/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Non-sputum-based tests are needed to predict or diagnose tuberculosis (TB) disease in people living with HIV (PWH). The enzyme indoleamine 2, 3-dioxygenase-1 (IDO1) is expressed in tuberculoid granuloma and catabolizes tryptophan (Trp) to kynurenine (Kyn). IDO1 activity compromises innate and adaptive immune responses, promoting mycobacterial survival. The plasma Kyn-to-Trp (K/T) ratio is a potential TB diagnostic and/or predictive biomarker in PWH on long-term antiretroviral therapy (ART). METHODS We compared plasma K/T ratios in samples from PWH, who were followed up prospectively and developed TB disease after ART initiation. Controls were matched for age and duration of ART. Kyn and Trp were measured at 3 timepoints; at TB diagnosis, 6 months before TB diagnosis and 6 months after TB diagnosis, using ultra performance liquid chromatography combined with mass spectrometry. RESULTS The K/T ratios were higher for patients with TB disease at time of diagnosis (median, 0.086; IQR, 0.069-0.123) compared to controls (0.055; IQR 0.045-0.064; p = 0.006), but not before or after TB diagnosis. K/T ratios significantly declined after successful TB treatment, but increased upon treatment failure. The K/T ratios showed a parabolic correlation with CD4 cell counts in participants with TB (p = 0.005), but there was no correlation in controls. CONCLUSIONS The plasma K/T ratio helped identify TB disease and may serve as an adjunctive biomarker for for monitoring TB treatment in PWH. Validation studies to ascertain these findings and evaluate the optimum cut-off for diagnosis of TB disease in PWH should be undertaken in well-designed prospective cohorts. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT00411983.
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Grants
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
- Department of Experimental Immunology, Amsterdam UMC and Amsterdam Infection and Immunity Institute, University of Amsterdam, Amsterdam, The Netherlands
- Department of Core Facility Metabolomics, Amsterdam UMC, Amsterdam, The Netherlands.
- Department of Health Sciences, Vrije Universiteit Amsterdam, Amsterdam Public Health research institute, Amsterdam, The Netherlands
- Department of Global Health and Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centers location University of Amsterdam, Amsterdam, The Netherlands.
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Affiliation(s)
- Sivaporn Gatechompol
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand.
- Center of Excellence in Tuberculosis, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
- Department of Global Health and Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centers Location University of Amsterdam, Amsterdam, The Netherlands.
| | - René Lutter
- Department of Experimental Immunology, Amsterdam UMC and Amsterdam Infection and Immunity Institute, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pulmonary Diseases, Amsterdam UMC, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Frédéric M Vaz
- Department of Core Facility Metabolomics, Amsterdam UMC, Amsterdam, The Netherlands
- Laboratory Genetic Metabolic Diseases, Department of Clinical Chemistry and Pediatrics, Amsterdam Gastroenterology Endocrinology Metabolism, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Sasiwimol Ubolyam
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
- Center of Excellence in Tuberculosis, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Anchalee Avihingsanon
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
- Center of Excellence in Tuberculosis, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Stephen J Kerr
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
- Biostatistics Excellence Centre, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Frank van Leth
- Department of Health Sciences, Vrije Universiteit Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Frank Cobelens
- Department of Global Health and Amsterdam Institute for Global Health and Development, Amsterdam University Medical Centers Location University of Amsterdam, Amsterdam, The Netherlands
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Yildirim-Balatan C, Fenyi A, Besnault P, Gomez L, Sepulveda-Diaz JE, Michel PP, Melki R, Hunot S. Parkinson's disease-derived α-synuclein assemblies combined with chronic-type inflammatory cues promote a neurotoxic microglial phenotype. J Neuroinflammation 2024; 21:54. [PMID: 38383421 PMCID: PMC10882738 DOI: 10.1186/s12974-024-03043-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/12/2024] [Indexed: 02/23/2024] Open
Abstract
Parkinson's disease (PD) is a common age-related neurodegenerative disorder characterized by the aggregation of α-Synuclein (αSYN) building up intraneuronal inclusions termed Lewy pathology. Mounting evidence suggests that neuron-released αSYN aggregates could be central to microglial activation, which in turn mounts and orchestrates neuroinflammatory processes potentially harmful to neurons. Therefore, understanding the mechanisms that drive microglial cell activation, polarization and function in PD might have important therapeutic implications. Here, using primary microglia, we investigated the inflammatory potential of pure αSYN fibrils derived from PD patients. We further explored and characterized microglial cell responses to a chronic-type inflammatory stimulation combining PD patient-derived αSYN fibrils (FPD), Tumor necrosis factor-α (TNFα) and prostaglandin E2 (PGE2) (TPFPD). We showed that FPD hold stronger inflammatory potency than pure αSYN fibrils generated de novo. When combined with TNFα and PGE2, FPD polarizes microglia toward a particular functional phenotype departing from FPD-treated cells and featuring lower inflammatory cytokine and higher glutamate release. Whereas metabolomic studies showed that TPFPD-exposed microglia were closely related to classically activated M1 proinflammatory cells, notably with similar tricarboxylic acid cycle disruption, transcriptomic analysis revealed that TPFPD-activated microglia assume a unique molecular signature highlighting upregulation of genes involved in glutathione and iron metabolisms. In particular, TPFPD-specific upregulation of Slc7a11 (which encodes the cystine-glutamate antiporter xCT) was consistent with the increased glutamate response and cytotoxic activity of these cells toward midbrain dopaminergic neurons in vitro. Together, these data further extend the structure-pathological relationship of αSYN fibrillar polymorphs to their innate immune properties and demonstrate that PD-derived αSYN fibrils, TNFα and PGE2 act in concert to drive microglial cell activation toward a specific and highly neurotoxic chronic-type inflammatory phenotype characterized by robust glutamate release and iron retention.
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Affiliation(s)
- Cansu Yildirim-Balatan
- Sorbonne Université, Paris, France
- Institut du Cerveau - Paris Brain Institute - ICM, Hôpital de la Pitié-Salpêtrière, 91 Bd de l'Hôpital, 75013, Paris, France
- Inserm UMRS 1127, Paris, France
- CNRS UMR 7225, Paris, France
| | - Alexis Fenyi
- CEA and Laboratory of Neurodegenerative Diseases, CNRS, Institut François Jacob, MIRCen, 92265, Fontenay-aux-Roses, France
| | - Pierre Besnault
- Sorbonne Université, Paris, France
- Institut du Cerveau - Paris Brain Institute - ICM, Hôpital de la Pitié-Salpêtrière, 91 Bd de l'Hôpital, 75013, Paris, France
- Inserm UMRS 1127, Paris, France
- CNRS UMR 7225, Paris, France
| | - Lina Gomez
- Sorbonne Université, Paris, France
- Institut du Cerveau - Paris Brain Institute - ICM, Hôpital de la Pitié-Salpêtrière, 91 Bd de l'Hôpital, 75013, Paris, France
- Inserm UMRS 1127, Paris, France
- CNRS UMR 7225, Paris, France
| | - Julia E Sepulveda-Diaz
- Sorbonne Université, Paris, France
- Institut du Cerveau - Paris Brain Institute - ICM, Hôpital de la Pitié-Salpêtrière, 91 Bd de l'Hôpital, 75013, Paris, France
- Inserm UMRS 1127, Paris, France
- CNRS UMR 7225, Paris, France
| | - Patrick P Michel
- Sorbonne Université, Paris, France
- Institut du Cerveau - Paris Brain Institute - ICM, Hôpital de la Pitié-Salpêtrière, 91 Bd de l'Hôpital, 75013, Paris, France
- Inserm UMRS 1127, Paris, France
- CNRS UMR 7225, Paris, France
| | - Ronald Melki
- CEA and Laboratory of Neurodegenerative Diseases, CNRS, Institut François Jacob, MIRCen, 92265, Fontenay-aux-Roses, France
| | - Stéphane Hunot
- Sorbonne Université, Paris, France.
- Institut du Cerveau - Paris Brain Institute - ICM, Hôpital de la Pitié-Salpêtrière, 91 Bd de l'Hôpital, 75013, Paris, France.
- Inserm UMRS 1127, Paris, France.
- CNRS UMR 7225, Paris, France.
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5
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Peng R, Xu C, Zhang L, Liu X, Peng D, Chen X, Liu D, Li R. M2 macrophages participate in ILC2 activation induced by Helicobacter pylori infection. Gut Microbes 2024; 16:2347025. [PMID: 38693666 PMCID: PMC11067991 DOI: 10.1080/19490976.2024.2347025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/19/2024] [Indexed: 05/03/2024] Open
Abstract
Helicobacter pylori (H. pylori) causes a diversity of gastric diseases. The host immune response evoked by H. pylori infection is complicated and can influence the development and progression of diseases. We have reported that the Group 2 innate lymphocytes (ILC2) were promoted and took part in building type-2 immunity in H. pylori infection-related gastric diseases. Therefore, in the present study, we aim to clarify how H. pylori infection induces the activation of ILC2. It was found that macrophages were necessary for activating ILC2 in H. pylori infection. Mechanistically, H. pylori infection up-regulated the expression of indoleamine 2,3-dioxygenase (IDO) in macrophages to induce M2 polarization, and the latter secreted the alarmin cytokine Thymic Stromal Lymphopoietin (TSLP) to arouse ILC2.
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Affiliation(s)
- Ruyi Peng
- Department of Gastroenterology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Research Center of Digestive Disease, Central South University, Changsha, Hunan Province, China
- Clinical Research Center of Digestive Diseases of Hunan Province, Changsha, Hunan Province, China
| | - Canxia Xu
- Department of Gastroenterology, Third Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan Province, China
| | - Linfang Zhang
- Department of Gastroenterology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Xiaoming Liu
- Department of Gastroenterology, Third Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, Hunan Province, China
| | - Dongzi Peng
- Department of Gastroenterology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Research Center of Digestive Disease, Central South University, Changsha, Hunan Province, China
- Clinical Research Center of Digestive Diseases of Hunan Province, Changsha, Hunan Province, China
| | - Xingcen Chen
- Department of Gastroenterology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Research Center of Digestive Disease, Central South University, Changsha, Hunan Province, China
- Clinical Research Center of Digestive Diseases of Hunan Province, Changsha, Hunan Province, China
| | - Deliang Liu
- Department of Gastroenterology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Research Center of Digestive Disease, Central South University, Changsha, Hunan Province, China
- Clinical Research Center of Digestive Diseases of Hunan Province, Changsha, Hunan Province, China
| | - Rong Li
- Department of Gastroenterology, the Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
- Research Center of Digestive Disease, Central South University, Changsha, Hunan Province, China
- Clinical Research Center of Digestive Diseases of Hunan Province, Changsha, Hunan Province, China
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Mallik SB, Mudgal J, Kinra M, Hall S, Grant GD, Anoopkumar-Dukie S, Nampoothiri M, Zhang Y, Arora D. Involvement of indoleamine 2, 3-dioxygenase (IDO) and brain-derived neurotrophic factor (BDNF) in the neuroprotective mechanisms of ferulic acid against depressive-like behaviour. Metab Brain Dis 2023; 38:2243-2254. [PMID: 37490224 PMCID: PMC10504153 DOI: 10.1007/s11011-023-01267-7] [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: 05/12/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
OBJECTIVE Ferulic acid (FA) is a common food ingredient that is abundantly present in various routinely consumed food and beverages. Like many cinnamic acid derivatives, FA produces wide-ranging effects in a dose-dependent manner and various studies link FA consumption with reduced risk of depressive disorders. The aim of this study was to exploit the neuroprotective mechanisms of FA including indoleamine 2,3-dioxygenase (IDO), brain-derived neurotrophic factor (BDNF), and other pro-inflammatory cytokines by employing lipopolysaccharide (LPS)-induced depressive-like behaviour model. METHODS C57BL/6J male mice were divided into 4 groups consisting of saline (SAL), LPS, FA and Imipramine (IMI). Animals were pretreated orally with FA (10 mg/kg) and IMI (10 mg/kg) for 21 days once daily and all groups except SAL were challenged with LPS (0.83 mg/kg) intraperitoneally on day 21. RESULTS LPS administration produced a biphasic change in the behaviour of the animals where the animals lost a significant weight and express high immobility time at 24 h. Proinflammatory cytokines including, TNF-α, IL-6, IL-1β, and IFN-γ were significantly increased along with increased lipid peroxidation and reduced BDNF. Furthermore, the increased kynurenine to tryptophan ratio was indicative of elevated IDO activity. CONCLUSION The results of this study emphasise that low dose of FA is effective in attenuating depressive-like behaviour by modulating IDO, BDNF and reducing neuroinflammation.
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Affiliation(s)
- Sanchari Basu Mallik
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Queensland, 4222, Australia
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Manas Kinra
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Susan Hall
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Queensland, 4222, Australia
| | - Gary D Grant
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Queensland, 4222, Australia
| | - Shailendra Anoopkumar-Dukie
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Queensland, 4222, Australia
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Yuqing Zhang
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Queensland, 4222, Australia
| | - Devinder Arora
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast campus, Queensland, 4222, Australia.
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India.
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Xu Y, Li W, Lin S, Liu B, Wu P, Li L. Fibroblast diversity and plasticity in the tumor microenvironment: roles in immunity and relevant therapies. Cell Commun Signal 2023; 21:234. [PMID: 37723510 PMCID: PMC10506315 DOI: 10.1186/s12964-023-01204-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/22/2023] [Indexed: 09/20/2023] Open
Abstract
Cancer-associated fibroblasts (CAFs), enriched in the tumor stroma, have received increasing attention because of their multifaceted effects on tumorigenesis, development, metastasis, and treatment resistance in malignancies. CAFs contributed to suppressive microenvironment via different mechanisms, while CAFs also exerted some antitumor effects. Therefore, CAFs have been considered promising therapeutic targets for their remarkable roles in malignant tumors. However, patients with malignancies failed to benefit from current CAFs-targeted drugs in many clinical trials, which suggests that further in-depth investigation into CAFs is necessary. Here, we summarize and outline the heterogeneity and plasticity of CAFs mainly by exploring their origin and activation, highlighting the regulation of CAFs in the tumor microenvironment during tumor evolution, as well as the critical roles performed by CAFs in tumor immunity. In addition, we summarize the current immunotherapies targeting CAFs, and conclude with a brief overview of some prospects for the future of CAFs research in the end. Video Abstract.
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Affiliation(s)
- Yashi Xu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- National Clinical Research Center for Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Li
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- National Clinical Research Center for Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shitong Lin
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- National Clinical Research Center for Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Binghan Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- National Clinical Research Center for Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Wu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- National Clinical Research Center for Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Li Li
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- National Clinical Research Center for Gynecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Department of Gynecologic Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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8
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Marszalek-Grabska M, Gawel K, Kosheva N, Kocki T, Turski WA. Developmental Exposure to Kynurenine Affects Zebrafish and Rat Behavior. Cells 2023; 12:2224. [PMID: 37759447 PMCID: PMC10526278 DOI: 10.3390/cells12182224] [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: 08/10/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Proper nutrition and supplementation during pregnancy and breastfeeding are crucial for the development of offspring. Kynurenine (KYN) is the central metabolite of the kynurenine pathway and a direct precursor of other metabolites that possess immunoprotective or neuroactive properties, with the ultimate effect on fetal neurodevelopment. To date, no studies have evaluated the effects of KYN on early embryonic development. Thus, the aim of our study was to determine the effect of incubation of larvae with KYN in different developmental periods on the behavior of 5-day-old zebrafish. Additionally, the effects exerted by KYN administered on embryonic days 1-7 (ED 1-7) on the behavior of adult offspring of rats were elucidated. Our study revealed that the incubation with KYN induced changes in zebrafish behavior, especially when zebrafish embryos or larvae were incubated with KYN from 1 to 72 h post-fertilization (hpf) and from 49 to 72 hpf. KYN administered early during pregnancy induced subtle differences in the neurobehavioral development of adult offspring. Further research is required to understand the mechanism of these changes. The larval zebrafish model can be useful for studying disturbances in early brain development processes and their late behavioral consequences. The zebrafish-medium system may be applicable in monitoring drug metabolism in zebrafish.
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Affiliation(s)
- Marta Marszalek-Grabska
- Department of Experimental and Clinical Pharmacology, Medical University, Jaczewskiego 8b, 20-090 Lublin, Poland; (K.G.); (N.K.); (T.K.); (W.A.T.)
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Singh B, Moodley C, Singh DK, Escobedo RA, Sharan R, Arora G, Ganatra SR, Shivanna V, Gonzalez O, Hall-Ursone S, Dick EJ, Kaushal D, Alvarez X, Mehra S. Inhibition of indoleamine dioxygenase leads to better control of tuberculosis adjunctive to chemotherapy. JCI Insight 2023; 8:e163101. [PMID: 36692017 PMCID: PMC9977315 DOI: 10.1172/jci.insight.163101] [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: 07/05/2022] [Accepted: 11/30/2022] [Indexed: 01/24/2023] Open
Abstract
The expression of indoleamine 2,3-dioxygenase (IDO), a robust immunosuppressant, is significantly induced in macaque tuberculosis (TB) granulomas, where it is expressed on IFN-responsive macrophages and myeloid-derived suppressor cells. IDO expression is also highly induced in human TB granulomas, and products of its activity are detected in patients with TB. In vivo blockade of IDO activity resulted in the reorganization of the granuloma with substantially greater T cells being recruited to the core of the lesions. This correlated with better immune control of TB and reduced lung M. tuberculosis burdens. To study if the IDO blockade strategy can be translated to a bona fide host-directed therapy in the clinical setting of TB, we studied the effect of IDO inhibitor 1-methyl-d-tryptophan adjunctive to suboptimal anti-TB chemotherapy. While two-thirds of controls and one-third of chemotherapy-treated animals progressed to active TB, inhibition of IDO adjunctive to the same therapy protected macaques from TB, as measured by clinical, radiological, and microbiological attributes. Although chemotherapy improved proliferative T cell responses, adjunctive inhibition of IDO further enhanced the recruitment of effector T cells to the lung. These results strongly suggest the possibility that IDO inhibition can be attempted adjunctive to anti-TB chemotherapy in clinical trials.
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Gough M, Singh DK, Moodley C, Niu T, Golden NA, Kaushal D, Mehra S. Peripheral Blood Markers Correlate with the Progression of Active Tuberculosis Relative to Latent Control of Mycobacterium tuberculosis Infection in Macaques. Pathogens 2022; 11:pathogens11050544. [PMID: 35631065 PMCID: PMC9146669 DOI: 10.3390/pathogens11050544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/23/2022] [Accepted: 04/26/2022] [Indexed: 01/08/2023] Open
Abstract
Despite a century of research into tuberculosis (TB), there is a dearth of reproducible, easily quantifiable, biomarkers that can predict disease onset and differentiate between host disease states. Due to the challenges associated with human sampling, nonhuman primates (NHPs) are utilized for recapitulating the closest possible modelling of human TB. To establish a predictive peripheral biomarker profile based on a larger cohort of rhesus macaques (RM), we analyzed results pertaining to peripheral blood serum chemistry and cell counts from RMs that were experimentally exposed to Mtb in our prior studies and characterized as having either developed active TB (ATB) disease or latent TB infection (LTBI). We compared lung CFU burdens and quantitative pathologies with a number of measurables in the peripheral blood. Based on our results, the investigations were then extended to the study of specific molecules and cells in the lung compartments of a subset of these animals and their immune responses. In addition to the elevated serum C-reactive protein (CRP) levels, frequently used to discern the level of Mtb infection in model systems, reduced serum albumin-to-globulin (A/G) ratios were also predictive of active TB disease. Furthermore, higher peripheral myeloid cell levels, particularly those of neutrophils, kynurenine-to-tryptophan ratio, an indicator of induced expression of the immunosuppressive molecule indoleamine dioxygenase, and an influx of myeloid cell populations could also efficiently discriminate between ATB and LTBI in experimentally infected macaques. These quantifiable correlates of disease were then used in conjunction with a regression-based analysis to predict bacterial load. Our results suggest a potential biomarker profile of TB disease in rhesus macaques, that could inform future NHP–TB research. Our results thus suggest that specific biomarkers may be developed from the myeloid subset of peripheral blood or plasma with the ability to discriminate between active and latent Mtb infection.
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Affiliation(s)
- Maya Gough
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA; (M.G.); (D.K.S.); (C.M.)
| | - Dhiraj K. Singh
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA; (M.G.); (D.K.S.); (C.M.)
| | - Chivonne Moodley
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA; (M.G.); (D.K.S.); (C.M.)
- Tulane University Health Science Center, New Orleans, LA 70112, USA
| | - Tianhua Niu
- Department of Biostatistics and Bioinformatics, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA;
| | - Nadia A. Golden
- Tulane National Primate Research Center, Covington, LA 70433, USA;
| | - Deepak Kaushal
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA; (M.G.); (D.K.S.); (C.M.)
- Correspondence: (D.K); (S.M.); Tel.: +210-258-9209 (D.K.); +210-258-9508 (S.M.)
| | - Smriti Mehra
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA; (M.G.); (D.K.S.); (C.M.)
- Correspondence: (D.K); (S.M.); Tel.: +210-258-9209 (D.K.); +210-258-9508 (S.M.)
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11
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Korchagina AA, Koroleva E, Tumanov AV. Innate Lymphoid Cells in Response to Intracellular Pathogens: Protection Versus Immunopathology. Front Cell Infect Microbiol 2021; 11:775554. [PMID: 34938670 PMCID: PMC8685334 DOI: 10.3389/fcimb.2021.775554] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/03/2021] [Indexed: 12/23/2022] Open
Abstract
Innate lymphoid cells (ILCs) are a heterogeneous group of cytokine-producing lymphocytes which are predominantly located at mucosal barrier surfaces, such as skin, lungs, and gastrointestinal tract. ILCs contribute to tissue homeostasis, regulate microbiota-derived signals, and protect against mucosal pathogens. ILCs are classified into five major groups by their developmental origin and distinct cytokine production. A recently emerged intriguing feature of ILCs is their ability to alter their phenotype and function in response to changing local environmental cues such as pathogen invasion. Once the pathogen crosses host barriers, ILCs quickly activate cytokine production to limit the spread of the pathogen. However, the dysregulated ILC responses can lead to tissue inflammation and damage. Furthermore, the interplay between ILCs and other immune cell types shapes the outcome of the immune response. Recent studies highlighted the important role of ILCs for host defense against intracellular pathogens. Here, we review recent advances in understanding the mechanisms controlling protective and pathogenic ILC responses to intracellular pathogens. This knowledge can help develop new ILC-targeted strategies to control infectious diseases and immunopathology.
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Affiliation(s)
- Anna A Korchagina
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Ekaterina Koroleva
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Alexei V Tumanov
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
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Mhaidly R, Mechta‐Grigoriou F. Role of cancer-associated fibroblast subpopulations in immune infiltration, as a new means of treatment in cancer. Immunol Rev 2021; 302:259-272. [PMID: 34013544 PMCID: PMC8360036 DOI: 10.1111/imr.12978] [Citation(s) in RCA: 117] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022]
Abstract
The tumor microenvironment (TME) has been identified as one of the driving factors of tumor progression and invasion. Within this microenvironment, cancer-associated fibroblasts (CAF) have multiple tumor-promoting functions and play key roles in drug resistance, through multiple mechanisms, including extracellular matrix (ECM) remodeling, production of growth factors, cytokines, and chemokines, and modulation of metabolism and angiogenesis. More recently, a growing body of evidence has shown that CAF also modulate immune cell activity and suppress anti-tumor immune response. In this review, we describe the current knowledge on CAF heterogeneity in terms of identity and functions. Moreover, we analyze how distinct CAF subpopulations differentially interact with immune cells, with a particular focus on T lymphocytes. We address how specific CAF subsets contribute to cancer progression through induction of an immunosuppressive microenvironment. Finally, we highlight potential therapeutic strategies for targeting CAF subpopulations in cancer.
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Affiliation(s)
- Rana Mhaidly
- Institut CurieStress and Cancer LaboratoryEquipe labelisée Ligue Nationale Contre le CancerPSL Research UniversityParisFrance
- U830, InsermParisFrance
| | - Fatima Mechta‐Grigoriou
- Institut CurieStress and Cancer LaboratoryEquipe labelisée Ligue Nationale Contre le CancerPSL Research UniversityParisFrance
- U830, InsermParisFrance
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Burassakarn A, Srisathaporn S, Pientong C, Wongjampa W, Vatanasapt P, Patarapadungkit N, Ekalaksananan T. Exosomes-carrying Epstein-Barr virus-encoded small RNA-1 induces indoleamine 2, 3-dioxygenase expression in tumor-infiltrating macrophages of oral squamous-cell carcinomas and suppresses T-cell activity by activating RIG-I/IL-6/TNF-α pathway. Oral Oncol 2021; 117:105279. [PMID: 33819809 DOI: 10.1016/j.oraloncology.2021.105279] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 03/17/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Although exosomes carrying Epstein-Barr virus-encoded small RNA-1 (EBER-1) are involved in the immunosuppressive tumor microenvironments of EBV-associated head and neck carcinomas, the effects of EBER-1-associated exosomes on tumor-infiltrating macrophages are poorly understood. MATERIALS AND METHODS The association between EBV infection and expression of indoleamine 2,3-dioxygenase (IDO) was assessed in 165 paraffin-embedded oral squamous cell carcinoma (OSCC) tissue samples. Using in vitro techniques, we investigated whether stimulation of the RIG-I/IL-6/TNF-α pathway by exosomes carrying EBER-1 is critical for IDO induction in macrophages. We performed a thymidine incorporation and a cell cytolytic assay to test for up-regulated IDO in macrophages that can block the proliferation and function of effector T cells. RESULTS Some infiltrated macrophages expressed levels of IDO higher than OSCC cells which was significantly associated with presence of EBV. The production of IDO, tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) in human monocyte-derived macrophages (MDMs) was induced by EBV-associated exosomes in vitro. Mechanistically, the retinoic acid-inducible gene I (RIG-I) pathway in MDMs was stimulated by EBV-encoded small RNA-1 (EBER-1) whereas the inhibition of these pathways by BX-795 almost abolished the production of these two cytokines and IDO induction. Also, the EBER-1-activated IDO in MDMs suppressed the proliferation of T lymphocytes and diminished the cytolytic activity of CD8+ T cells. CONCLUSION Exosomes carrying EBER-1 could induce IDO expression in MDMs, considerably aided by an IL-6 and TNF-α-dependent mechanism via the RIG-I signaling pathway, which might create an immunosuppressive microenvironment affecting T-cell immune responses.
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Affiliation(s)
- Ati Burassakarn
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sawarot Srisathaporn
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Weerayut Wongjampa
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Patravoot Vatanasapt
- Department of Otorhinolaryngology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Natcha Patarapadungkit
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Department of Otorhinolaryngology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
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Lin W, Shen P, Song Y, Huang Y, Tu S. Reactive Oxygen Species in Autoimmune Cells: Function, Differentiation, and Metabolism. Front Immunol 2021; 12:635021. [PMID: 33717180 PMCID: PMC7946999 DOI: 10.3389/fimmu.2021.635021] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/08/2021] [Indexed: 12/19/2022] Open
Abstract
Accumulated reactive oxygen species (ROS) directly contribute to biomacromolecule damage and influence various inflammatory responses. Reactive oxygen species act as mediator between innate and adaptive immune cells, thereby influencing the antigen-presenting process that results in T cell activation. Evidence from patients with chronic granulomatous disease and mouse models support the function of ROS in preventing abnormal autoimmunity; for example, by supporting maintenance of macrophage efferocytosis and T helper 1/T helper 2 and T helper 17/ regulatory T cell balance. The failure of many anti-oxidation treatments indicates that ROS cannot be considered entirely harmful. Indeed, enhancement of ROS may sometimes be required. In a mouse model of rheumatoid arthritis (RA), absence of NOX2-derived ROS led to higher prevalence and more severe symptoms. In patients with RA, naïve CD4+ T cells exhibit inhibited glycolysis and enhanced pentose phosphate pathway (PPP) activity, leading to ROS exhaustion. In this "reductive" state, CD4+ T cell immune homeostasis is disrupted, triggering joint destruction, together with oxidative stress in the synovium.
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Affiliation(s)
- Weiji Lin
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pan Shen
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaqin Song
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Huang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shenghao Tu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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15
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Clinical Evidence of Antidepressant Effects of Insulin and Anti-Hyperglycemic Agents and Implications for the Pathophysiology of Depression-A Literature Review. Int J Mol Sci 2020; 21:ijms21186969. [PMID: 32971941 PMCID: PMC7554794 DOI: 10.3390/ijms21186969] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/21/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023] Open
Abstract
Close connections between depression and type 2 diabetes (T2DM) have been suggested by many epidemiological and experimental studies. Disturbances in insulin sensitivity due to the disruption of various molecular pathways cause insulin resistance, which underpins many metabolic disorders, including diabetes, as well as depression. Several anti-hyperglycemic agents have demonstrated antidepressant properties in clinical trials, probably due to their action on brain targets based on the shared pathophysiology of depression and T2DM. In this article, we review reports of clinical trials examining the antidepressant effect of these medications, including insulin, metformin, glucagon like peptide-1 receptor agonists (GLP-1RA), and peroxisome proliferator-activated receptor (PPAR)-γ agonists, and briefly consider possible molecular mechanisms underlying the associations between amelioration of insulin resistance and improvement of depressive symptoms. In doing so, we intend to suggest an integrative perspective for understanding the pathophysiology of depression.
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16
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Carabelli B, Delattre AM, Waltrick APF, Araújo G, Suchecki D, Machado RB, de Souza LER, Zanata SM, Zanoveli JM, Ferraz AC. Fish-oil supplementation decreases Indoleamine-2,3-Dioxygenase expression and increases hippocampal serotonin levels in the LPS depression model. Behav Brain Res 2020; 390:112675. [PMID: 32407816 DOI: 10.1016/j.bbr.2020.112675] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 04/07/2020] [Accepted: 04/24/2020] [Indexed: 10/24/2022]
Abstract
AIM To test the hypothesis that the antidepressant-like effect of omega-3 polyunsaturated fatty acids is related to the Indoleamine-2,3-Dioxygenase (IDO) inhibition. METHODS Animals were supplemented for 50 days with 3.0 g/kg of Fish Oil (FO) or received water (Control group - C), via gavage. At the end of this period, both groups were injected with LPS 24 h before the modified forced swim test (MFST) and the open field. To assess the possible involvement of IDO in the FO effects, we performed two independent experiments, using two IDO inhibitors: the direct inhibitor 1-methyl-DL-tryptophan (1-MT) and the anti-inflammatory drug minocycline (MINO), administered 23 h, 5 h and 1 h before the tests. After the tests, the animals' hippocampi were removed for quantification of serotonin (5-HT) and its metabolite 5-hydroxyindoleacetic acid (5-HIAA) by HPLC, and for IDO expression by western blot. RESULTS LPS induced a depressive-like state in the animals, and this effect was blocked by 1-MT, MINO and FO. Regardless of IDO inhibition, FO supplemented animals displayed an antidepressant-like response by increasing swimming and decreasing immobility frequencies in the MFST when compared to the control group. The immune challenge induced an over-expression of IDO and reduced hippocampal 5-HT levels, both of which were reversed by MINO and FO. CONCLUSION FO induced a pronounced antidepressant-like effect and prevented LPS-induced depressive-like behavior, and this effect was related to decreased IDO expression and increased 5-HT levels in the hippocampus.
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Affiliation(s)
- Bruno Carabelli
- Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, PR, Brazil.
| | - Ana Márcia Delattre
- Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | | | - Giulia Araújo
- Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | - Deborah Suchecki
- Departamento de Psicobiologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | | | - Silvio M Zanata
- Departamento de Patologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
| | | | - Anete Curte Ferraz
- Departamento de Fisiologia, Universidade Federal do Paraná, Curitiba, PR, Brazil
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17
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Mhaidly R, Mechta-Grigoriou F. Fibroblast heterogeneity in tumor micro-environment: Role in immunosuppression and new therapies. Semin Immunol 2020; 48:101417. [DOI: 10.1016/j.smim.2020.101417] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 09/25/2020] [Accepted: 09/26/2020] [Indexed: 02/07/2023]
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18
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Tao X, Yan M, Wang L, Zhou Y, Wang Z, Xia T, Liu X, Pan R, Chang Q. Homeostasis Imbalance of Microglia and Astrocytes Leads to Alteration in the Metabolites of the Kynurenine Pathway in LPS-Induced Depressive-Like Mice. Int J Mol Sci 2020; 21:1460. [PMID: 32098023 PMCID: PMC7073050 DOI: 10.3390/ijms21041460] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/12/2020] [Accepted: 02/19/2020] [Indexed: 12/21/2022] Open
Abstract
In the pathology-oriented study of depression, inflammation hypothesis has received increasing attention for recent years. To mimic the depressive state caused by inflammation, rodents injected intraperitoneally with lipopolysaccharide (LPS) are usually used to stimulate an immune response. However, the dose of LPS that causes depressive-like behavior varies widely across many literatures. Previous study has uncovered the non-linearity in the dose-effect relationship for the depressive-like behavior induced by LPS administration, while the reason for this is still unclear. The present study aims to investigate the underlying mechanisms of this non-linear dose-dependent relationship. Four groups of mice were injected intraperitoneally with different doses of LPS (0, 0.32, 0.8, and 2 mg/kg). The tail suspension test was conducted to evaluate the depressive-like behavior within 23-25 h after the LPS administration. The neuroplasticity was assessed by the levels of related proteins, TrkB and PSD-95, and by the quantification of neurons using Nissl staining. The levels of the two metabolites of the kynurenine (KYN) pathway, 3-hydroxykynurenine (3-HK) and kynurenic acid (KYNA), in the brain were analyzed by LC-MS/MS. Activation of microglia and astrocytes in the brain were also determined by immunohistochemistry and western blotting, respectively. The results showed that, compared with the control group, the mice in the 0.8 mg/kg LPS-treated group exhibited a remarkable increase of immobility time in the tail suspension test. The neuroplasticity of mice in the 0.8 mg/kg LPS-treated group was also significantly reduced. The neurotoxic metabolite, 3-HK, was accumulated significantly in the hippocampus of the 0.8 mg/kg LPS-treated mice. Surprisingly, the 2 mg/kg LPS-treated mice did not exhibit a remarkable change of 3-HK but expressed increased KYNA significantly, which is neuroprotective. Furthermore, the activation of microglia and astrocytes, which were recognized as the primary source of 3-HK and KYNA, respectively, corresponded to the content of these two metabolites of the KYN pathway in each group. Consequently, it was speculated that the homeostasis of different glial cells could lead to a non-linear dose-dependent behavior by regulating the KYN pathway in the LPS-induced depressive-like mice.
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Affiliation(s)
| | | | | | | | | | | | | | - Ruile Pan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
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Abou Khouzam R, Goutham HV, Zaarour RF, Chamseddine AN, Francis A, Buart S, Terry S, Chouaib S. Integrating tumor hypoxic stress in novel and more adaptable strategies for cancer immunotherapy. Semin Cancer Biol 2020; 65:140-154. [PMID: 31927131 DOI: 10.1016/j.semcancer.2020.01.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/10/2019] [Accepted: 01/07/2020] [Indexed: 12/14/2022]
Abstract
Immunotherapy is poised to become an increasingly utilized therapy in the treatment of cancer. However, several abnormalities in the tumor microenvironment (TME) that can thwart the efficacy of immunotherapies have been established. Microenvironmental hypoxia is a determining factor in shaping aggressiveness, metastatic potential and treatment resistance of solid tumors. The characterization of this phenomenon could prove beneficial for determining a patient's treatment path and for the introduction of novel targetable factors that can enhance therapeutic outcome. Indeed, the ablation of hypoxia has the potential to sensitize tumors to immunotherapy by metabolically remodeling their microenvironment. In this review, we discuss the intrinsic contributions of hypoxia to cellular plasticity, heterogeneity, stemness and genetic instability in the context of immune escape. In addition, we will shed light on how managing hypoxia can ameliorate response to immunotherapy and how integrating hypoxia gene signatures could play a role in this pursuit.
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Affiliation(s)
- Raefa Abou Khouzam
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, 4184, United Arab Emirates.
| | - Hassan Venkatesh Goutham
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, 4184, United Arab Emirates.
| | - Rania Faouzi Zaarour
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, 4184, United Arab Emirates.
| | - Ali N Chamseddine
- Département d'Oncologie Médicale, Gustave Roussy Cancer Campus Grand Paris, Villejuif, France.
| | - Amirtharaj Francis
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, 4184, United Arab Emirates.
| | - Stéphanie Buart
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Faculty. De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France
| | - Stéphane Terry
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Faculty. De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
| | - Salem Chouaib
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, 4184, United Arab Emirates; INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Faculty. De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif F-94805, France.
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20
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Gualdoni GS, Jacobo PV, Sobarzo CM, Pérez CV, Matzkin ME, Höcht C, Frungieri MB, Hill M, Anegon I, Lustig L, Guazzone VA. Role of indoleamine 2,3-dioxygenase in testicular immune-privilege. Sci Rep 2019; 9:15919. [PMID: 31685866 PMCID: PMC6828782 DOI: 10.1038/s41598-019-52192-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 10/12/2019] [Indexed: 02/07/2023] Open
Abstract
Male meiotic germ cell including the spermatozoa represent a great challenge to the immune system, as they appear long after the establishment of normal immune tolerance mechanisms. The capacity of the testes to tolerate autoantigenic germ cells as well as survival of allogeneic organ engrafted in the testicular interstitium have led to consider the testis an immunologically privileged site. Disruption of this immune privilege following trauma, tumor, or autoimmune orchitis often results in male infertility. Strong evidence indicates that indoleamine 2,3-dioxygenase (IDO) has been implicated in fetal and allograft tolerance, tumor immune resistance, and regulation of autoimmune diseases. IDO and tryptophan 2,3-dioxygenase (TDO) catalyze the same rate-limiting step of tryptophan metabolism along a common pathway, which leads to tryptophan starvation and generation of catabolites collectively known as kynurenines. However, the relevance of tryptophan metabolism in testis pathophysiology has not yet been explored. Here we assessed the in vivo role of IDO/TDO in experimental autoimmune orchitis (EAO), a model of autoimmune testicular inflammation and immunologically impaired spermatogenesis. EAO was induced in adult Wistar rats with testicular homogenate and adjuvants. Control (C) rats injected with saline and adjuvants and normal untreated rats (N) were also studied. mRNA expression of IDO decreased in whole testes and in isolated Sertoli cells during EAO. TDO and IDO localization and level of expression in the testis were analyzed by immunostaining and Western blot. TDO is expressed in granulomas from EAO rats, and similar protein levels were observed in N, C, and EAO groups. IDO was detected in mononuclear and endothelial cells and reduced IDO expression was detected in EAO group compared to N and C rats. This phenomenon was concomitant with a significant reduction of IDO activity in EAO testis measured by tryptophan and kynurenine concentrations (HPLC). Finally, in vivo inhibition of IDO with 1-methyl-tryptophan increased severity of the disease, demonstrating down regulation of IDO-based tolerance when testicular immune regulation was disrupted. We present evidence that an IDO-based mechanism is involved in testicular immune privilege.
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Affiliation(s)
- Gisela S Gualdoni
- Universidad de Buenos Aires (UBA), Facultad de Medicina, Departamento de Biología Celular e Histología/Unidad Académica II., Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina
| | - Patricia V Jacobo
- Universidad de Buenos Aires (UBA), Facultad de Medicina, Departamento de Biología Celular e Histología/Unidad Académica II., Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina
| | - Cristian M Sobarzo
- Universidad de Buenos Aires (UBA), Facultad de Medicina, Departamento de Biología Celular e Histología/Unidad Académica II., Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina
| | - Cecilia V Pérez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina
| | - María E Matzkin
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Ciudad Autónoma de Buenos Aires, C1428ADN, Argentina
| | - Christian Höcht
- Cátedra de Farmacología. Facultad de Farmacia y Bioquímica, UBA, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina
| | - Mónica B Frungieri
- Instituto de Biología y Medicina Experimental (IBYME), CONICET, Ciudad Autónoma de Buenos Aires, C1428ADN, Argentina
| | - Marcelo Hill
- Laboratory of Immunoregulation and Inflammation, Institut Pasteur de Montevideo, 11400, Montevideo, Uruguay.,Immunobiology Department, Faculty of Medicine, University of the Republic, 11800, Montevideo, Uruguay
| | - Ignacio Anegon
- Inserm, Université de Nantes, Centre de Recherche en Transplantation et Immunologie, Nantes, France, INSERM UMR 1064, France
| | - Livia Lustig
- Universidad de Buenos Aires (UBA), Facultad de Medicina, Departamento de Biología Celular e Histología/Unidad Académica II., Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina
| | - Vanesa A Guazzone
- Universidad de Buenos Aires (UBA), Facultad de Medicina, Departamento de Biología Celular e Histología/Unidad Académica II., Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina. .,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina, Ciudad Autónoma de Buenos Aires, C1121ABG, Argentina.
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21
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An Y, Liu F, Chen Y, Yang Q. Crosstalk between cancer-associated fibroblasts and immune cells in cancer. J Cell Mol Med 2019; 24:13-24. [PMID: 31642585 PMCID: PMC6933413 DOI: 10.1111/jcmm.14745] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/12/2019] [Accepted: 08/25/2019] [Indexed: 12/21/2022] Open
Abstract
Multiple studies have shown that cancer‐associated fibroblasts (CAFs) play an important role in tumour progression, including carcinogenesis, invasion, metastasis and the chemoresistance of cancer cells. Immune cells, including macrophages, natural killer cells, dendritic cells and T cells, play a dual role in the tumour microenvironment. Although increasing research has focused on studying interactions between distinct cells in the tumour microenvironment, the complex relationships between CAFs and immune cells remain unclear and need further study. Here, we summarize our current understanding of crosstalk between CAFs and immune cells, which may help clarify their diagnostic and therapeutic value in tumour progression.
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Affiliation(s)
- Yuanyuan An
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, P.R. China
| | - Fengtian Liu
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, P.R. China
| | - Ying Chen
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, P.R. China
| | - Qing Yang
- Department of Gynecology and Obstetrics, Shengjing Hospital of China Medical University, Shenyang, P.R. China
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22
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Grzegorzewska AE. Genetic Polymorphisms within Interferon-λ Region and Interferon-λ3 in the Human Pathophysiology: Their Contribution to Outcome, Treatment, and Prevention of Infections with Hepatotropic Viruses. Curr Med Chem 2019; 26:4832-4851. [DOI: 10.2174/0929867325666180719121142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 03/21/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022]
Abstract
:
Genetic polymorphisms within the interferon λ (IFN-λ) chromosomal region,
mainly rs12979860 of IFN-λ4 gene (IFNL4), are known as associated with spontaneous hepatitis
C virus (HCV) resolution and sustained viral response to therapy with pegylated interferon-
α and ribavirin. Strong linkage disequilibrium of IFNL4 rs12979860 with IFNL4
rs368234815, which is casually associated with HCV spontaneous and therapeutical eradication,
at least partially explains favorable HCV outcomes attributed to major homozygosity in
rs12979860. Effects of IFN-based antiviral treatment are associated with pretreatment expression
of the IFN-λ1 receptor, expression of hepatic IFN-stimulated genes, production of IFN-
λ4, and preactivation of the JAK-STAT signaling. Nowadays direct-acting antivirals (DAAs)
became a potent tool in the treatment of hepatitis C, but IFN-λs are still under investigation as
potential antivirals and might be an option in HCV infection (DAA resistance, recurrent viremia,
adverse effects).
:
Patients with altered immunocompetence are especially prone to infections. In uremic subjects,
polymorphisms within the IFN-λ chromosomal region associate with spontaneous HCV
clearance, similarly like in the non-uremic population. Circulating IFN-λ3 shows a positive
correlation with plasma titers of antibodies to surface antigen of hepatitis B virus (anti-HBs),
which are crucial for protection against hepatitis B virus. More efficient anti-HBs production
in the presence of higher IFN-λ3 levels might occur due to IFN-λ3-induced regulation of indoleamine
2,3-dioxygenase (IDO) expression. IFN-stimulated response element is a part of
IDO gene promoter. It is worth further investigation whether IDO gene, circulating IDO, genetic
polymorphisms within the IFN-λ region, and circulating IFN-λ3 act in concordance in
immunological response to hepatotropic viruses.
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Affiliation(s)
- Alicja E. Grzegorzewska
- Chair and Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
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23
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Massalska M, Kuca-Warnawin E, Janicka I, Plebanczyk M, Pawlak D, Dallos T, Olwert A, Radzikowska A, Maldyk P, Kontny E, Maslinski W. Survival of lymphocytes is not restricted by IDO-expressing fibroblast from rheumatoid arthritis patients. Immunopharmacol Immunotoxicol 2019; 41:214-223. [PMID: 30714436 DOI: 10.1080/08923973.2019.1569048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Objective: Rheumatoid arthritis (RA) is characterized by expansion of fibroblast-like synoviocytes (FLS) in inflamed joints and activation of lymphocytes. Tryptophan (trp) is an essential amino acid indispensable for the biosynthesis of proteins and critical for survival of lymphocytes. Indoleamine 2,3-dioxygenase (IDO) that initiates the degradation of trp and tryptophanyl-tRNA synthetase (TTS) essential for tryptophan synthesis, regulate trp bioavailability. Here, we tested the hypothesis that triggered by cytokines, enhanced IDO activity modulate regulatory function of otherwise non-tolerogenic FLS isolated from RA patients. Materials and methods: IDO and TTS mRNA expression were evaluated by RT-PCR. IDO enzymatic activity was confirmed using HPLC. Resting or PHA-activated PBMC from healthy volunteers and RA patients were co-cultured with IDO expressing untreated (FLSC) or IFNγ-treated (FLSIFNγ) RA FLS. Lymphocyte survival and proliferation were evaluated by flow cytometry analysis and tritiated thymidine incorporation, respectively. Results: RA FLSIFNγ produce functionally active IDO and constitutively express TTS. RA FLSC and FLSIFNγ increased survival of resting lymphocytes in both studied groups, and decreased proliferation of healthy, but not RA, PBMC. Only FLSIFNγ diminished survival of activated CD3+CD4-, but not CD3+CD4+, healthy T cells and similar tendency was observed in rheumatoid cells. Importantly, IDO inhibitor, 1-methyl-DL-tryptophan (1-MT), failed to reverse this effect. PBMC, irrespective of their state (resting versus activated) or origin (healthy or RA), expressed high level of TTS mRNA. Conclusions: We suggest that RA FLS express functionally active IDO but control survival and expansion of healthy cells in IDO-independent mechanism and exert weaker, if any, suppressive effect on rheumatoid cells.
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Affiliation(s)
- Magdalena Massalska
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Ewa Kuca-Warnawin
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Iwona Janicka
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Magdalena Plebanczyk
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Dariusz Pawlak
- b Department of Pharmacodynamics, The Faculty of Pharmacy with the Division of Laboratory Medicine , Medical University , Białystok , Poland
| | - Tomas Dallos
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Anna Olwert
- c Systems Research InstitutePolish Academy of Sciences , Warsaw , Poland
| | - Anna Radzikowska
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Pawel Maldyk
- d Department of Rheumoorthopaedic Surgery , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Ewa Kontny
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
| | - Wlodzimierz Maslinski
- a Department of Pathophysiology and Immunology , National Institute of Geriatrics, Rheumatology, and Rehabilitation , Warsaw , Poland
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24
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Raasch M, Fritsche E, Kurtz A, Bauer M, Mosig AS. Microphysiological systems meet hiPSC technology - New tools for disease modeling of liver infections in basic research and drug development. Adv Drug Deliv Rev 2019; 140:51-67. [PMID: 29908880 DOI: 10.1016/j.addr.2018.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/01/2018] [Accepted: 06/12/2018] [Indexed: 02/08/2023]
Abstract
Complex cell culture models such as microphysiological models (MPS) mimicking human liver functionality in vitro are in the spotlight as alternative to conventional cell culture and animal models. Promising techniques like microfluidic cell culture or micropatterning by 3D bioprinting are gaining increasing importance for the development of MPS to address the needs for more predictivity and cost efficiency. In this context, human induced pluripotent stem cells (hiPSCs) offer new perspectives for the development of advanced liver-on-chip systems by recreating an in vivo like microenvironment that supports the reliable differentiation of hiPSCs to hepatocyte-like cells (HLC). In this review we will summarize current protocols of HLC generation and highlight recently established MPS suitable to resemble physiological hepatocyte function in vitro. In addition, we are discussing potential applications of liver MPS for disease modeling related to systemic or direct liver infections and the use of MPS in testing of new drug candidates.
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25
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Lyra E Silva NDM, Lam MP, Soares CN, Munoz DP, Milev R, De Felice FG. Insulin Resistance as a Shared Pathogenic Mechanism Between Depression and Type 2 Diabetes. Front Psychiatry 2019; 10:57. [PMID: 30837902 PMCID: PMC6382695 DOI: 10.3389/fpsyt.2019.00057] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/25/2019] [Indexed: 12/28/2022] Open
Abstract
Neuropsychiatric disorders and type 2 diabetes (T2D) are major public health concerns proposed to be intimately connected. T2D is associated with increased risk of dementia, neuropsychiatric and mood disorders. Evidences of the involvement of insulin signaling on brain mechanisms related to depression indicate that insulin resistance, a hallmark of type 2 diabetes, could develop in the brains of depressive patients. In this article, we briefly review possible molecular mechanisms associating defective brain insulin signaling with reward system, neurogenesis, synaptic plasticity and hypothalamic-pituitary-adrenal (HPA) stress axis in depression. We further discuss the involvement of tumor necrosis factor α (TNFα) promoting defective insulin signaling and depressive-like behavior in rodent models. Finally, due to the high resistant rate of anti-depressants, novel insights into the link between insulin resistance and depression may advance the development of alternative treatments for this disease.
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Affiliation(s)
| | - Minh P Lam
- Department of Psychiatry, Queen's University, Kingston, ON, Canada
| | - Claudio N Soares
- Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada.,Department of Psychiatry, Queen's University, Kingston, ON, Canada
| | - Douglas P Munoz
- Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada
| | - Roumen Milev
- Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada.,Department of Psychiatry, Queen's University, Kingston, ON, Canada
| | - Fernanda G De Felice
- Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada.,Department of Psychiatry, Queen's University, Kingston, ON, Canada.,Institute of Medical Biochemistry Leopoldo De Meis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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26
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Phelan JJ, Basdeo SA, Tazoll SC, McGivern S, Saborido JR, Keane J. Modulating Iron for Metabolic Support of TB Host Defense. Front Immunol 2018; 9:2296. [PMID: 30374347 PMCID: PMC6196273 DOI: 10.3389/fimmu.2018.02296] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/17/2018] [Indexed: 02/05/2023] Open
Abstract
Tuberculosis (TB) is the world's biggest infectious disease killer. The increasing prevalence of multidrug-resistant and extensively drug-resistant TB demonstrates that current treatments are inadequate and there is an urgent need for novel therapies. Research is now focused on the development of host-directed therapies (HDTs) which can be used in combination with existing antimicrobials, with a special focus on promoting host defense. Immunometabolic reprogramming is integral to TB host defense, therefore, understanding and supporting the immunometabolic pathways that are altered after infection will be important for the development of new HDTs. Moreover, TB pathophysiology is interconnected with iron metabolism. Iron is essential for the survival of Mycobacterium tuberculosis (Mtb), the bacteria that causes TB disease. Mtb struggles to replicate and persist in low iron environments. Iron chelation has therefore been suggested as a HDT. In addition to its direct effects on iron availability, iron chelators modulate immunometabolism through the stabilization of HIF1α. This review examines immunometabolism in the context of Mtb and its links to iron metabolism. We suggest that iron chelation, and subsequent stabilization of HIF1α, will have multifaceted effects on immunometabolic function and holds potential to be utilized as a HDT to boost the host immune response to Mtb infection.
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Affiliation(s)
- James J Phelan
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Sharee A Basdeo
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Simone C Tazoll
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Sadhbh McGivern
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Judit R Saborido
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Joseph Keane
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
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27
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Identification of Urine Metabolites as Biomarkers of Early Lyme Disease. Sci Rep 2018; 8:12204. [PMID: 30111850 PMCID: PMC6093930 DOI: 10.1038/s41598-018-29713-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 07/10/2018] [Indexed: 02/06/2023] Open
Abstract
Metabolites detectible in human biofluids are attractive biomarkers for the diagnosis of early Lyme disease (ELD), a vector-borne infectious disease. Urine represents an easily obtained clinical sample that can be applied for diagnostic purposes. However, few studies have explored urine for biomarkers of ELD. In this study, metabolomics approaches were applied to evaluate small molecule metabolites in urine from patients with ELD (n = 14), infectious mononucleosis (n = 14) and healthy controls (n = 14). Metabolic biosignatures for ELD versus healthy controls and ELD versus infectious mononucleosis were generated using untargeted metabolomics. Pathway analyses and metabolite identification revealed the dysregulation of several metabolic processes in ELD as compared to healthy controls or mononucleosis, including metabolism of tryptophan. Linear discriminant analyses demonstrated that individual metabolic biosignatures can correctly discriminate ELD from the other patient groups with accuracies of 71 to 100%. These data provide proof-of-concept for use of urine metabolites as biomarkers for diagnostic classification of ELD.
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28
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Geluk A. Correlates of immune exacerbations in leprosy. Semin Immunol 2018; 39:111-118. [PMID: 29950273 DOI: 10.1016/j.smim.2018.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 01/13/2023]
Abstract
Leprosy is still a considerable health threat in pockets of several low and middle income countries worldwide where intense transmission is witnessed, and often results in irreversible disabilities and deformities due to delayed- or misdiagnosis. Early detection of leprosy represents a substantial hurdle in present-day leprosy health care. The dearth of timely diagnosis has, however, particularly severe consequences in the case of inflammatory episodes, designated leprosy reactions, which represent the major cause of leprosy-associated irreversible neuropathy. There is currently no accurate, routine diagnostic test to reliably detect leprosy reactions, or to predict which patients will develop these immunological exacerbations. Identification of host biomarkers for leprosy reactions, particularly if correlating with early onset prior to development of clinical symptoms, will allow timely interventions that contribute to decreased morbidity. Development of a point-of-care (POC) test based on such correlates would be a definite game changer in leprosy health care. In this review, proteomic-, transcriptomic and metabolomic research strategies aiming at identification of host biomarker-based correlates of leprosy reactions are discussed, next to external factors associated with occurrence of these episodes. The vast diversity in research strategies combined with the variability in patient- and control cohorts argues for harmonisation of biomarker discovery studies with geographically overarching study sites. This will improve identification of specific correlates associated with risk of these damaging inflammatory episodes in leprosy and subsequent application to rapid field tests.
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Affiliation(s)
- Annemieke Geluk
- Dept. of Infectious Diseases, LUMC, PO Box 9600, 2300 RC Leiden, The Netherlands.
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29
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Kak G, Raza M, Tiwari BK. Interferon-gamma (IFN-γ): Exploring its implications in infectious diseases. Biomol Concepts 2018; 9:64-79. [PMID: 29856726 DOI: 10.1515/bmc-2018-0007] [Citation(s) in RCA: 326] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/20/2018] [Indexed: 12/12/2022] Open
Abstract
A key player in driving cellular immunity, IFN-γ is capable of orchestrating numerous protective functions to heighten immune responses in infections and cancers. It can exhibit its immunomodulatory effects by enhancing antigen processing and presentation, increasing leukocyte trafficking, inducing an anti-viral state, boosting the anti-microbial functions and affecting cellular proliferation and apoptosis. A complex interplay between immune cell activity and IFN-γ through coordinated integration of signals from other pathways involving cytokines and Pattern Recognition Receptors (PRRs) such as Interleukin (IL)-4, TNF-α, Lipopolysaccharide (LPS), Type-I Interferons (IFNS) etc. leads to initiation of a cascade of pro-inflammatory responses. Microarray data has unraveled numerous genes whose transcriptional regulation is influenced by IFN-γ. Consequently, IFN-γ stimulated cells display altered expression of many such target genes which mediate its downstream effector functions. The importance of IFN-γ is further reinforced by the fact that mice possessing disruptions in the IFN-γ gene or its receptor develop extreme susceptibility to infectious diseases and rapidly succumb to them. In this review, we attempt to elucidate the biological functions and physiological importance of this versatile cytokine. The functional implications of its biological activity in several infectious diseases and autoimmune pathologies are also discussed. As a counter strategy, many virulent pathogenic species have devised ways to thwart IFN-γ endowed immune-protection. Thus, IFN-γ mediated host-pathogen interactions are critical for our understanding of disease mechanisms and these aspects also manifest enormous therapeutic importance for the annulment of various infections and autoimmune conditions.
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Affiliation(s)
- Gunjan Kak
- From the Infectious Disease Immunology Lab, Dr. B R Ambedkar Center for Biomedical Research, University of Delhi, Delhi, 110007, India
| | - Mohsin Raza
- Department of Biochemistry, University of Delhi, South Campus, New Delhi, 110021, India
| | - Brijendra K Tiwari
- From the Infectious Disease Immunology Lab, Dr. B R Ambedkar Center for Biomedical Research, University of Delhi, Delhi, 110007, India
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30
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Xue Y, Xiao H, Guo S, Xu B, Liao Y, Wu Y, Zhang G. Indoleamine 2,3-dioxygenase expression regulates the survival and proliferation of Fusobacterium nucleatum in THP-1-derived macrophages. Cell Death Dis 2018; 9:355. [PMID: 29500439 PMCID: PMC5834448 DOI: 10.1038/s41419-018-0389-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 02/04/2018] [Accepted: 02/05/2018] [Indexed: 01/23/2023]
Abstract
Fusobacterium nucleatum (Fn) is a tumor-associated obligate anaerobic bacterium, which has a role in the progression of colorectal cancer (CRC). Fn can invade and promote colon epithelial cells proliferation. However, how Fn survives and proliferates in its host cells remains largely unknown. In this study, we aimed to determine the molecular mechanisms underlying the morphology, survival, and proliferation of Fn in THP-1-derived macrophages (dTHP1). For the first time, we found that Fn is a facultative intracellular bacterium that can survive and limited proliferate in dTHP1 cells up to 72 h, and a live Fn infection can inhibit apoptosis of dTHP1 cells by activating the PI3K and ERK pathways. Both Fn bacteria and dTHP1 cells exhibit obvious morphological changes during infection. In addition, Infection of Fn-induced indoleamine 2,3-dioxygenase (IDO) expression by TNF-α-dependent and LPS-dependent pathway in a time-dependent and dose-dependent manner, and the IDO-induced low tryptophan and high kynurenine environment inhibited the intracellular multiplication of Fn in dTHP1 cells. IDO expression further impaired the function of peripheral blood lymphocytes, permitting the escape of Fn-infected macrophages from cell death. IDO inhibition abrogated this effect caused by Fn and relieved immune suppression. In conclusion, we identified IDO as an important player mediating intracellular Fn proliferation in macrophages, and inhibition of IDO may aggravate infection in Fn-associated tumor immunotherapy.
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Affiliation(s)
- Ying Xue
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangdong, China.,Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Han Xiao
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Songhe Guo
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Banglao Xu
- Department of Clinical Laboratory Medicine, Guangzhou First Municipal People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yuehua Liao
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yixian Wu
- Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Ge Zhang
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangdong, China. .,Department of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China.
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31
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Marques A, Schwartz I, Wormser GP, Wang Y, Hornung RL, Demirkale CY, Munson PJ, Turk SP, Williams C, Lee CCR, Yang J, Petzke MM. Transcriptome Assessment of Erythema Migrans Skin Lesions in Patients With Early Lyme Disease Reveals Predominant Interferon Signaling. J Infect Dis 2017; 217:158-167. [PMID: 29099929 PMCID: PMC5853807 DOI: 10.1093/infdis/jix563] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/24/2017] [Indexed: 02/07/2023] Open
Abstract
Background The most common clinical manifestation of early Lyme disease is the erythema migrans (EM) skin lesion that develops at the tick bite site typically between 7 and 14 days after infection with Borreliella burgdorferi. The host-pathogen interactions that occur in the skin may have a critical role in determining outcome of infection. Methods Gene arrays were used to characterize the global transcriptional alterations in skin biopsy samples of EM lesions from untreated adult patients with Lyme disease in comparison to controls. Results The transcriptional pattern in EM biopsies consisted of 254 differentially regulated genes (180 induced and 74 repressed) characterized by the induction of chemokines, cytokines, Toll-like receptors, antimicrobial peptides, monocytoid cell activation markers, and numerous genes annotated as interferon (IFN)-inducible. The IFN-inducible genes included 3 transcripts involved in tryptophan catabolism (IDO1, KMO, KYNU) that play a pivotal role in immune evasion by certain other microbial pathogens by driving the differentiation of regulatory T cells. Conclusions This is the first study to globally assess the human skin transcriptional response during early Lyme disease. Borreliella burgdorferi elicits a predominant IFN signature in the EM lesion, suggesting a potential mechanism for spirochetal dissemination via IDO1-mediated localized immunosuppression.
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Affiliation(s)
- Adriana Marques
- Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Ira Schwartz
- Department of Microbiology and Immunology, Valhalla
| | - Gary P Wormser
- Division of Infectious Diseases, Department of Medicine, New York Medical College, Valhalla
| | - Yanmei Wang
- Clinical Services Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Maryland
| | - Ronald L Hornung
- Clinical Services Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Maryland
| | - Cumhur Y Demirkale
- Mathematical and Statistical Computing Laboratory, Center for Information Technology, National Institutes of Health, Bethesda, Maryland
| | - Peter J Munson
- Mathematical and Statistical Computing Laboratory, Center for Information Technology, National Institutes of Health, Bethesda, Maryland
| | - Siu-Ping Turk
- Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Carla Williams
- Clinical Services Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Maryland
| | - Chyi-Chia Richard Lee
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Jun Yang
- Laboratory of Human Retrovirology and Immunoinformatics, Leidos Biomedical Research, Inc. Frederick National Laboratory for Cancer Research, Maryland
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In vivo inhibition of tryptophan catabolism reorganizes the tuberculoma and augments immune-mediated control of Mycobacterium tuberculosis. Proc Natl Acad Sci U S A 2017; 115:E62-E71. [PMID: 29255022 PMCID: PMC5776797 DOI: 10.1073/pnas.1711373114] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Mycobacterium tuberculosis continues to cause devastating levels of mortality due to tuberculosis (TB). The failure to control TB stems from an incomplete understanding of the highly specialized strategies that M. tuberculosis utilizes to modulate host immunity and thereby persist in host lungs. Here, we show that M. tuberculosis induced the expression of indoleamine 2,3-dioxygenase (IDO), an enzyme involved in tryptophan catabolism, in macrophages and in the lungs of animals (mice and macaque) with active disease. In a macaque model of inhalation TB, suppression of IDO activity reduced bacterial burden, pathology, and clinical signs of TB disease, leading to increased host survival. This increased protection was accompanied by increased lung T cell proliferation, induction of inducible bronchus-associated lymphoid tissue and correlates of bacterial killing, reduced checkpoint signaling, and the relocation of effector T cells to the center of the granulomata. The enhanced killing of M. tuberculosis in macrophages in vivo by CD4+ T cells was also replicated in vitro, in cocultures of macaque macrophages and CD4+ T cells. Collectively, these results suggest that there exists a potential for using IDO inhibition as an effective and clinically relevant host-directed therapy for TB.
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Hackstein CP, Assmus LM, Welz M, Klein S, Schwandt T, Schultze J, Förster I, Gondorf F, Beyer M, Kroy D, Kurts C, Trebicka J, Kastenmüller W, Knolle PA, Abdullah Z. Gut microbial translocation corrupts myeloid cell function to control bacterial infection during liver cirrhosis. Gut 2017; 66:507-518. [PMID: 27432540 DOI: 10.1136/gutjnl-2015-311224] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 06/20/2016] [Accepted: 06/22/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Patients with liver cirrhosis suffer from increased susceptibility to life-threatening bacterial infections that cause substantial morbidity. METHODS Experimental liver fibrosis in mice induced by bile duct ligation or CCl4 application was used to characterise the mechanisms determining failure of innate immunity to control bacterial infections. RESULTS In murine liver fibrosis, translocation of gut microbiota induced tonic type I interferon (IFN) expression in the liver. Such tonic IFN expression conditioned liver myeloid cells to produce high concentrations of IFN upon intracellular infection with Listeria that activate cytosolic pattern recognition receptors. Such IFN-receptor signalling caused myeloid cell interleukin (IL)-10 production that corrupted antibacterial immunity, leading to loss of infection-control and to infection-associated mortality. In patients with liver cirrhosis, we also found a prominent liver IFN signature and myeloid cells showed increased IL-10 production after bacterial infection. Thus, myeloid cells are both source and target of IFN-induced and IL-10-mediated immune dysfunction. Antibody-mediated blockade of IFN-receptor or IL-10-receptor signalling reconstituted antibacterial immunity and prevented infection-associated mortality in mice with liver fibrosis. CONCLUSIONS In severe liver fibrosis and cirrhosis, failure to control bacterial infection is caused by augmented IFN and IL-10 expression that incapacitates antibacterial immunity of myeloid cells. Targeted interference with the immune regulatory host factors IL-10 and IFN reconstitutes antibacterial immunity and may be used as therapeutic strategy to control bacterial infections in patients with liver cirrhosis.
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Affiliation(s)
| | | | - Meike Welz
- Institute of Experimental Immunology, Universität Bonn, Bonn, Germany
| | - Sabine Klein
- Department of Internal Medicine I, Universität Bonn, Bonn, Germany
| | - Timo Schwandt
- Institute of Experimental Immunology, Universität Bonn, Bonn, Germany
| | - Joachim Schultze
- Genomics and Immunoregulation, LIMES Institute, Universität Bonn, Bonn, Germany
| | - Irmgard Förster
- Immunology and Environment, LIMES Institute, Universität Bonn, Bonn, Germany
| | - Fabian Gondorf
- Immunology and Environment, LIMES Institute, Universität Bonn, Bonn, Germany
| | - Marc Beyer
- Genomics and Immunoregulation, LIMES Institute, Universität Bonn, Bonn, Germany
| | - Daniela Kroy
- Department of Medicine III, University Hospital Aachen, Aachen, Germany
| | - Christian Kurts
- Institute of Experimental Immunology, Universität Bonn, Bonn, Germany
| | - Jonel Trebicka
- Department of Internal Medicine I, Universität Bonn, Bonn, Germany
| | | | - Percy A Knolle
- Institute of Experimental Immunology, Universität Bonn, Bonn, Germany.,Institute of Molecular Immunology and Experimental Oncology, Technische Universität München, München, Germany
| | - Zeinab Abdullah
- Institute of Experimental Immunology, Universität Bonn, Bonn, Germany
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He H, Geng T, Chen P, Wang M, Hu J, Kang L, Song W, Tang H. NK cells promote neutrophil recruitment in the brain during sepsis-induced neuroinflammation. Sci Rep 2016; 6:27711. [PMID: 27270556 PMCID: PMC4897692 DOI: 10.1038/srep27711] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 05/19/2016] [Indexed: 02/07/2023] Open
Abstract
Sepsis could affect the central nervous system and thus induces neuroinflammation, which subsequently leads to brain damage or dysfunction. However, the mechanisms of generation of neuroinflammation during sepsis remain poorly understood. By administration of lipopolysaccharides (LPS) in mice to mimic sepsis, we found that shortly after opening the blood-brain barrier, conventional CD11b(+)CD27(+) NK subset migrated into the brain followed by subsequent neutrophil infiltration. Interestingly, depletion of NK cells prior to LPS treatment severely impaired neutrophil recruitment in the inflamed brain. By in vivo recruitment assay, we found that brain-infiltrated NK cells displayed chemotactic activity to neutrophils, which depended on the higher expression of chemokines such as CXCL2. Moreover, microglia were also responsible for neutrophil recruitment, and their chemotactic activity was significantly impaired by ablation of NK cells. Furthermore, depletion of NK cells could significantly ameliorate depression-like behavior in LPS-treated mice. These data indicated a NK cell-regulated neutrophil recruitment in the blamed brain, which also could be seen on another sepsis model, cecal ligation and puncture. So, our findings revealed an important scenario in the generation of sepsis-induced neuroinflammation.
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Affiliation(s)
- Hao He
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Tingting Geng
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Piyun Chen
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Meixiang Wang
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Jingxia Hu
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Li Kang
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Wengang Song
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
| | - Hua Tang
- Institute of Immunology, Taishan Medical University, Taian, Shandong, 271000, China
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35
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Singer M, Li W, Morré SA, Ouburg S, Spinola SM. Host Polymorphisms in TLR9 and IL10 Are Associated With the Outcomes of Experimental Haemophilus ducreyi Infection in Human Volunteers. J Infect Dis 2016; 214:489-95. [PMID: 27122592 DOI: 10.1093/infdis/jiw164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 04/14/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND In humans inoculated with Haemophilus ducreyi, there are host effects on the possible clinical outcomes-pustule formation versus spontaneous resolution of infection. However, the immunogenetic factors that influence these outcomes are unknown. Here we examined the role of 14 single-nucleotide polymorphisms (SNPs) in 7 selected pathogen-recognition pathways and cytokine genes on the gradated outcomes of experimental infection. METHODS DNAs from 105 volunteers infected with H. ducreyi at 3 sites were genotyped for SNPs, using real-time polymerase chain reaction. The participants were classified into 2 cohorts, by race, and into 4 groups, based on whether they formed 0, 1, 2, or 3 pustules. χ(2) tests for trend and logistic regression analyses were performed on the data. RESULTS In European Americans, the most significant findings were a protective association of the TLR9 +2848 GG genotype and a risk-enhancing association of the TLR9 TA haplotype with pustule formation; logistic regression showed a trend toward protection for the TLR9 +2848 GG genotype. In African Americans, logistic regression showed a protective effect for the IL10 -2849 AA genotype and a risk-enhancing effect for the IL10 AAC haplotype. CONCLUSIONS Variations in TLR9 and IL10 are associated with the outcome of H. ducreyi infection.
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Affiliation(s)
- Martin Singer
- Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam
| | - Wei Li
- Department of Microbiology and Immunology
| | - Servaas A Morré
- Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam Institute for Public Health Genomics, Department of Genetics and Cell Biology, School for Oncology and Developmental Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands
| | - Sander Ouburg
- Laboratory of Immunogenetics, Department of Medical Microbiology and Infection Control, VU University Medical Center, Amsterdam
| | - Stanley M Spinola
- Department of Microbiology and Immunology Departments of Medicine Pathology and Laboratory Medicine Center for Immunobiology, Indiana University School of Medicine, Indiana University, Indianapolis
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TNFα mediates stress-induced depression by upregulating indoleamine 2,3-dioxygenase in a mouse model of unpredictable chronic mild stress. Eur Cytokine Netw 2016; 26:15-25. [PMID: 26083579 DOI: 10.1684/ecn.2015.0362] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Depression is often preceded by exposure to stressful life events. Chronic stress causes perturbations in the immune system, and up-regulates production of proinflammatory cytokines, which has been proposed to be associated with the pathogenesis of clinical depression. However, the potential mechanisms by which stress-induced proinflammatory cytokines lead to the development of depression are not well understood. Here, we sought to screen the main proinflammatory cytokines and the potential mechanisms linking inflammation to depression-like behavior during unpredictable, chronic, mild stress (UCMS), in vivo. Mice were allocated into four groups in each separate experiment: saline-control, saline-UCMS, drug-control and drug-UCMS. Development of depression-like behavior was reflected as a reduction in sucrose preference, and increased immobility in both the forced swim and tail suspension tests. The following drugs were administered intraperitoneally: the pan-anti-inflammatory tetracycline derivative, minocycline (30 mg/kg, daily), the tumor necrosis factor (TNF)α monoclonal antibody, infliximab (10 mg/kg, twice weekly), and the indoleamine 2, 3-dioxygenase (IDO) inhibitor, 1-methyltryptophan (1-MT, 10 mg/mouse, daily). Plasma TNFα, IL-1β and IL-18 increased significantly after the four-week UCMS exposure. Pretreatment of mice with minocycline completely blocked any upregulation. Concurrent with development of depression-like behaviors, the concentration of TNFα in plasma and the cerebral cortex increased remarkably. The tryptophan-degrading enzyme IDO was up-regulated in the cortex following UCMS exposure. Treatment of mice with minocycline, infliximab or 1-MT prevented the development of depression-like behaviors. Furthermore, blockade of TNFα inhibited expression of IDO and protected cortical neurons from UCMS-induced damage. These results suggest that TNFα plays a critical role in mediating UCMS-induced depression through up-regulation of IDO and subsequent damage of cortical neurons.
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37
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Qualls JE, Murray PJ. Immunometabolism within the tuberculosis granuloma: amino acids, hypoxia, and cellular respiration. Semin Immunopathol 2016; 38:139-52. [PMID: 26490974 PMCID: PMC4779414 DOI: 10.1007/s00281-015-0534-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/01/2015] [Indexed: 02/04/2023]
Abstract
Tuberculosis (TB) granulomas are compact, organized agglomerations of infected and uninfected macrophages, T cells, neutrophils, and other immune cells. Within the granuloma, several unique metabolic adaptations occur to modify the behavior of immune cells, potentially favoring bacterial persistence balanced with protection against immunopathology. These include the induction of arginase-1 in macrophages to temper nitric oxide (NO) production and block T cell proliferation, inhibition of oxygen-requiring NO production in hypoxic regions, and induction of tryptophan-degrading enzymes that modify T cell proliferation and function. The spatial and time-dependent organization of granulomas further influences immunometabolism, for example through lactate production by activated macrophages, which can induce arginase-1. Although complex, the metabolic changes in and around TB granulomas can be potentially modified by host-directed therapies. While elimination of the TB bacilli is often the goal of any anti-TB therapy, host-directed approaches must also account for the possibility of immunopathologic damage to the lung.
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Affiliation(s)
- Joseph E Qualls
- Department of Pediatrics, Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | - Peter J Murray
- Department of Infectious Diseases and Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN, USA.
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38
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Cheng JT, Deng YN, Yi HM, Wang GY, Fu BS, Chen WJ, Liu W, Tai Y, Peng YW, Zhang Q. Hepatic carcinoma-associated fibroblasts induce IDO-producing regulatory dendritic cells through IL-6-mediated STAT3 activation. Oncogenesis 2016. [PMID: 26900950 DOI: 10.1038/oncsis.2016.7.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Although carcinoma-associated fibroblasts (CAFs) in tumor microenvironments have a critical role in immune cell modulation, their effects on the generation of regulatory dendritic cells (DCs) are still unclear. In this study, we initially show that CAFs derived from hepatocellular carcinoma (HCC) tumors facilitate the generation of regulatory DCs, which are characterized by low expression of costimulatory molecules, high suppressive cytokines production and enhanced regulation of immune responses, including T-cell proliferation impairment and promotion of regulatory T-cell (Treg) expansion via indoleamine 2,3-dioxygenase (IDO) upregulation. Our findings also indicate that STAT3 activation in DCs, as mediated by CAF-derived interleukin (IL)-6, is essential to IDO production. Moreover, IDO inhibitor, STAT3 and IL-6 blocking antibodies can reverse this hepatic CAF-DC regulatory function. Therefore, our results provide new insights into the mechanisms by which CAFs induce tumor immune escape as well as a novel cancer immunotherapeutic approach (for example, targeting CAFs, IDO or IL-6).
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Affiliation(s)
- J-T Cheng
- Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Y-N Deng
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.,Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - H-M Yi
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.,Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - G-Y Wang
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - B-S Fu
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - W-J Chen
- Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - W Liu
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Y Tai
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Y-W Peng
- Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Q Zhang
- Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
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Hepatic carcinoma-associated fibroblasts induce IDO-producing regulatory dendritic cells through IL-6-mediated STAT3 activation. Oncogenesis 2016; 5:e198. [PMID: 26900950 PMCID: PMC5154347 DOI: 10.1038/oncsis.2016.7] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/07/2015] [Accepted: 01/13/2016] [Indexed: 12/13/2022] Open
Abstract
Although carcinoma-associated fibroblasts (CAFs) in tumor microenvironments have a critical role in immune cell modulation, their effects on the generation of regulatory dendritic cells (DCs) are still unclear. In this study, we initially show that CAFs derived from hepatocellular carcinoma (HCC) tumors facilitate the generation of regulatory DCs, which are characterized by low expression of costimulatory molecules, high suppressive cytokines production and enhanced regulation of immune responses, including T-cell proliferation impairment and promotion of regulatory T-cell (Treg) expansion via indoleamine 2,3-dioxygenase (IDO) upregulation. Our findings also indicate that STAT3 activation in DCs, as mediated by CAF-derived interleukin (IL)-6, is essential to IDO production. Moreover, IDO inhibitor, STAT3 and IL-6 blocking antibodies can reverse this hepatic CAF-DC regulatory function. Therefore, our results provide new insights into the mechanisms by which CAFs induce tumor immune escape as well as a novel cancer immunotherapeutic approach (for example, targeting CAFs, IDO or IL-6).
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40
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Dinney CM, Zhao LD, Conrad CD, Duker JM, Karas RO, Hu Z, Hamilton MA, Gillis TR, Parker TM, Fan B, Advani AH, Poordad FB, Fauceglia PL, Kirsch KM, Munk PT, Ladanyi MP, Bochner BA, Bekelman JA, Grandori CM, Olson JC, Lechan RD, Abou GMA, Goodarzi MA. Regulation of HBV-specific CD8(+) T cell-mediated inflammation is diversified in different clinical presentations of HBV infection. J Microbiol 2015; 53:718-24. [PMID: 26428923 DOI: 10.1007/s12275-015-5314-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 07/13/2015] [Accepted: 08/12/2015] [Indexed: 02/07/2023]
Abstract
Chronic HBV infection is the leading cause of liver cirrhosis and hepatic cancer, but the individual responses toward HBV infection are highly variable, ranging from asymptomatic to chronic active hepatitis B inflammation. In this study, we hypothesized that the different individual responses to HBV infection was associated with differences in HBV-specific CD8(+) T cell-mediated inflammation and cytotoxicity. Blood samples were collected from subjects with asymptomatic HBV-infection, subjects undergoing active chronic HBV flares (active CHB), and subjects with HBV-infected hepatocellular carcinoma (HBV-HCC). By tetramer staining, we found that all three groups had similar frequencies of HBVspecific CD8(+) T cells. However, after HBV peptide stimulation, the HBV-specific CD8(+) T cells in asymptomatic subjects had significantly stronger interferon gamma (IFN-γ), tumor necrosis factor alpha (TNF-α), and CD107a expression than those in active CHB and HBV-HCC patients. Examination of surface marker expression revealed that the PD-1(-)Tim-3(-) double-negative cell population was the main contributor to HBV-specific inflammation. In active CHB patients and HBV-HCC patients, however, the frequencies of activated PD-1(-)Tim-3(-) cells were significantly reduced. Moreover, the serum HBV DNA titer was not correlated with the frequencies of HBV-specific CD8(+) T cells but was inversely correlated with the frequencies of IFN-g-expressing and CD107a-express cells in response to HBV stimulation. Together, our data demonstrated that the status of HBVspecific CD8(+) T cell exhaustion was associated with different clinical outcomes of chronic HBV infection.
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Affiliation(s)
- Colin M Dinney
- Wayne State University Medical Center, Detroit, Michigan, 48201, USA
| | - Lu-Dong Zhao
- Department of Hepatobiliary Surgery, Linyi People's Hospital, Shandong, 276000, P. R. China
| | - Charles D Conrad
- Wayne State University Medical Center, Detroit, Michigan, 48201, USA
| | - Jay M Duker
- Wayne State University Medical Center, Detroit, Michigan, 48201, USA
| | - Richard O Karas
- Wayne State University Medical Center, Detroit, Michigan, 48201, USA
| | - Zhibin Hu
- Wayne State University Medical Center, Detroit, Michigan, 48201, USA
| | - Michele A Hamilton
- Department of Medicine, University of Maryland, Medscientist Group, Baltimore, MD, 21201, USA
| | - Thomas R Gillis
- Department of Medicine, University of Maryland, Medscientist Group, Baltimore, MD, 21201, USA
| | | | - Bing Fan
- Tufts University, Boston, MA, 02111, USA
| | | | - Fred B Poordad
- University of British Columbia, Vancouver, BC, V6T 2B5, Canada
| | | | | | - Peter T Munk
- Georgetown University, Washington, DC, 20057, USA
| | | | | | | | | | - James C Olson
- University of British Columbia, Vancouver, BC, V6T 2B5, Canada.
| | | | - Ghassan M A Abou
- Department of Medicine, University of Maryland, Medscientist Group, Baltimore, MD, 21201, USA.
| | - Mark A Goodarzi
- Department of Medicine, University of Maryland, Medscientist Group, Baltimore, MD, 21201, USA.
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Abstract
IDO1 (indoleamine 2,3-dioxygenase 1) is a member of a unique class of mammalian haem dioxygenases that catalyse the oxidative catabolism of the least-abundant essential amino acid, L-Trp (L-tryptophan), along the kynurenine pathway. Significant increases in knowledge have been recently gained with respect to understanding the fundamental biochemistry of IDO1 including its catalytic reaction mechanism, the scope of enzyme reactions it catalyses, the biochemical mechanisms controlling IDO1 expression and enzyme activity, and the discovery of enzyme inhibitors. Major advances in understanding the roles of IDO1 in physiology and disease have also been realised. IDO1 is recognised as a prominent immune regulatory enzyme capable of modulating immune cell activation status and phenotype via several molecular mechanisms including enzyme-dependent deprivation of L-Trp and its conversion into the aryl hydrocarbon receptor ligand kynurenine and other bioactive kynurenine pathway metabolites, or non-enzymatic cell signalling actions involving tyrosine phosphorylation of IDO1. Through these different modes of biochemical signalling, IDO1 regulates certain physiological functions (e.g. pregnancy) and modulates the pathogenesis and severity of diverse conditions including chronic inflammation, infectious disease, allergic and autoimmune disorders, transplantation, neuropathology and cancer. In the present review, we detail the current understanding of IDO1’s catalytic actions and the biochemical mechanisms regulating IDO1 expression and activity. We also discuss the biological functions of IDO1 with a focus on the enzyme's immune-modulatory function, its medical implications in diverse pathological settings and its utility as a therapeutic target.
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Fox JM, Crabtree JM, Sage LK, Tompkins SM, Tripp RA. Interferon Lambda Upregulates IDO1 Expression in Respiratory Epithelial Cells After Influenza Virus Infection. J Interferon Cytokine Res 2015; 35:554-62. [PMID: 25756191 PMCID: PMC4507134 DOI: 10.1089/jir.2014.0052] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 01/19/2015] [Indexed: 01/10/2023] Open
Abstract
Influenza infection causes an increase in indoleamine 2, 3-dioxygenase (IDO) activity in the lung parenchyma. IDO catabolizes tryptophan into kynurenine, leading to immune dampening. Multiple cell types express IDO, and while IFN-γ upregulates IDO in dendritic cells and macrophages, it is unclear how IDO is affected in respiratory epithelial cells during influenza infection. In this study, the role of IFN-λ in IDO regulation was investigated after influenza infection of respiratory epithelial cells. IDO1 expression increased concurrently with IFN-λ expression. In differentiated NHBE cells, the IDO metabolite was released basolaterally. Recombinant IFN-λ upregulated IDO1 activity, and silencing of IFN-λ decreased IDO1 expression during influenza infection. During IFN-λ stimulation, most differentiated cell types are able to express IDO but during influenza infection, IDO is primarily expressed in uninfected cells. These studies show a role for IDO in the host response to influenza infection, and they provide insights into novel approaches for enhancing vaccine responses and therapeutic approaches.
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Affiliation(s)
- Julie M Fox
- Department of Infectious Diseases, University of Georgia , Athens, Georgia
| | | | - Leo K Sage
- Department of Infectious Diseases, University of Georgia , Athens, Georgia
| | - S Mark Tompkins
- Department of Infectious Diseases, University of Georgia , Athens, Georgia
| | - Ralph A Tripp
- Department of Infectious Diseases, University of Georgia , Athens, Georgia
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43
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Chistiakov DA, Sobenin IA, Orekhov AN, Bobryshev YV. Myeloid dendritic cells: Development, functions, and role in atherosclerotic inflammation. Immunobiology 2015; 220:833-44. [DOI: 10.1016/j.imbio.2014.12.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/07/2014] [Accepted: 12/22/2014] [Indexed: 12/21/2022]
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44
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Schultze JL, Freeman T, Hume DA, Latz E. A transcriptional perspective on human macrophage biology. Semin Immunol 2015; 27:44-50. [PMID: 25843246 DOI: 10.1016/j.smim.2015.02.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 01/31/2015] [Accepted: 02/04/2015] [Indexed: 12/12/2022]
Abstract
Macrophages are a major cell type in tissue homeostasis and contribute to both pathology and resolution in all acute and chronic inflammatory diseases ranging from infections, cancer, obesity, atherosclerosis, autoimmune disorders to neurodegenerative diseases such as Alzheimer's disease. The cellular and functional diversity of macrophages depends upon tightly regulated transcription. The innate immune system is under profound evolutionary selection. There is increasing recognition that human macrophage biology differs very significantly from that of commonly studied animal models, which therefore can have a limited predictive value. Here we report on the newest findings on transcriptional control of macrophage activation, and how we envision integrating studies on transcriptional and epigenetic regulation, and more classical approaches in murine models. Moreover, we provide new insights into how we can learn about transcriptional regulation in the human system from larger efforts such as the FANTOM (Functional Annotation of the Mammalian Genome) consortium.
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Affiliation(s)
- Joachim L Schultze
- Genomics and Immunoregulation, LIMES-Institute, University of Bonn, 53115 Bonn, Germany.
| | - Tom Freeman
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Edinburgh, Midlothian EH25 9RG, Scotland, UK
| | - David A Hume
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Edinburgh, Midlothian EH25 9RG, Scotland, UK
| | - Eicke Latz
- Institute of Innate Immunity, University Hospitals, University of Bonn, 53127 Bonn, Germany; Division of Infectious Diseases and Immunology, UMass Medical School, Worcester, MA 01605, USA; German Center of Neurodegenerative Diseases (DZNE), 53175 Bonn, Germany
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45
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Love AC, Schwartz I, Petzke MM. Induction of indoleamine 2,3-dioxygenase by Borrelia burgdorferi in human immune cells correlates with pathogenic potential. J Leukoc Biol 2015; 97:379-90. [PMID: 25420916 PMCID: PMC4304421 DOI: 10.1189/jlb.4a0714-339r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/16/2014] [Accepted: 10/07/2014] [Indexed: 12/16/2022] Open
Abstract
Borrelia burgdorferi, the bacterial agent of Lyme disease, induces the production of type I IFNs by human DCs through TLR7 and TLR9 signaling. This type I IFN response occurs in a genotype-dependent manner, with significantly higher levels of IFN-α elicited by B. burgdorferi strains that have a greater capacity for causing disseminated infection. A B. burgdorferi strain that was previously shown to induce IFN-α was found to elicit significantly higher levels of IDO1 protein and its downstream metabolite, kynurenine, compared with a B. burgdorferi mutant that lacks a single linear plasmid (lp36); this mutant is unable to induce IFN-α and is severely attenuated for infectivity in mice. Production of IDO by mDC and pDC populations, present within human PBMCs, was concomitant with increased expression of the DC maturation markers, CD83 and CCR7. The defects in IDO production and expression of CD83 and CCR7 could be restored by complementation of the mutant with lp36. Maximal IDO production in response to the wild-type strain was dependent on contributions by both type I IFN and IFN-γ, the type II IFN. Induction of IDO was mediated by the same TLR7-dependent recognition of B. burgdorferi RNA that contributes to the production of type I IFNs by human DCs. The ability of IFN-α-inducing B. burgdorferi strains to stimulate production of IDO and kynurenines may be a mechanism that is used by the pathogen to promote localized immunosuppression and facilitate hematogenous dissemination.
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Affiliation(s)
- Andrea C Love
- Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA
| | - Ira Schwartz
- Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA
| | - Mary M Petzke
- Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA
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46
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Lemos H, Huang L, McGaha T, Mellor AL. STING, nanoparticles, autoimmune disease and cancer: a novel paradigm for immunotherapy? Expert Rev Clin Immunol 2014; 11:155-65. [PMID: 25521938 DOI: 10.1586/1744666x.2015.995097] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
DNA has potent immunogenic properties that are useful to enhance vaccine efficacy. DNA also incites hyperinflammation and autoimmunity if DNA sensing is not regulated. Paradoxically, DNA regulates immunity and autoimmunity when administered systemically as DNA nanoparticles. DNA nanoparticles regulated immunity via cytosolic DNA sensors that activate the signaling adaptor stimulator of interferon genes. In this review, we describe how DNA sensing to activate stimulator of interferon genes promotes regulatory responses and discuss the biological and clinical implications of these responses for understanding disease progression and designing better therapies for patients with chronic inflammatory diseases, such as autoimmune syndromes or cancer.
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Affiliation(s)
- Henrique Lemos
- Cancer immunology, Inflammation and Tolerance Program, Cancer Center, Georgia Regents University, 1120 15th St, Augusta GA 30912, USA
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47
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Tanner R, Kakalacheva K, Miller E, Pathan AA, Chalk R, Sander CR, Scriba T, Tameris M, Hawkridge T, Mahomed H, Hussey G, Hanekom W, Checkley A, McShane H, Fletcher HA. Serum indoleamine 2,3-dioxygenase activity is associated with reduced immunogenicity following vaccination with MVA85A. BMC Infect Dis 2014; 14:660. [PMID: 25466778 PMCID: PMC4265419 DOI: 10.1186/s12879-014-0660-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 11/24/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There is an urgent need for improved vaccines to protect against tuberculosis. The currently available vaccine Bacille Calmette-Guerin (BCG) has varying immunogenicity and efficacy across different populations for reasons not clearly understood. MVA85A is a modified vaccinia virus expressing antigen 85A from Mycobacterium tuberculosis which has been in clinical development since 2002 as a candidate vaccine to boost BCG-induced protection. A recent efficacy trial in South African infants failed to demonstrate enhancement of protection over BCG alone. The immunogenicity was lower than that seen in UK trials. The enzyme Indoleamine 2,3-dioxygenase (IDO) catalyses the first and rate-limiting step in the breakdown of the essential amino acid tryptophan. T cells are dependent on tryptophan and IDO activity suppresses T-cell proliferation and function. METHODS Using samples collected during phase I trials with MVA85A across the UK and South Africa we have investigated the relationship between vaccine immunogenicity and IDO using IFN-γ ELISPOT, qPCR and liquid chromatography mass spectrometry. RESULTS We demonstrate an IFN-γ dependent increase in IDO mRNA expression in peripheral blood mononuclear cells (PBMC) following MVA85A vaccination in UK subjects. IDO mRNA correlates positively with the IFN-γ ELISPOT response indicating that vaccine specific induction of IDO in PBMC is unlikely to limit the development of vaccine specific immunity. IDO activity in the serum of volunteers from the UK and South Africa was also assessed. There was no change in serum IDO activity following MVA85A vaccination. However, we observed higher baseline IDO activity in South African volunteers when compared to UK volunteers. In both UK and South African serum samples, baseline IDO activity negatively correlated with vaccine-specific IFN-γ responses, suggesting that IDO activity may impair the generation of a CD4+ T cell memory response. CONCLUSIONS Baseline IDO activity was higher in South African volunteers when compared to UK volunteers, which may represent a potential mechanism for the observed variation in vaccine immunogenicity in South African and UK populations and may have important implications for future vaccination strategies. TRIAL REGISTRATION Trials are registered at ClinicalTrials.gov; UK cohort NCT00427830, UK LTBI cohort NCT00456183, South African cohort NCT00460590, South African LTBI cohort NCT00480558.
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Affiliation(s)
- Rachel Tanner
- The Jenner Institute, University of Oxford, Oxford, UK.
| | - Kristina Kakalacheva
- The Jenner Institute, University of Oxford, Oxford, UK. .,Present address: Department of Neuroinflammation, Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland.
| | - Ellen Miller
- The Jenner Institute, University of Oxford, Oxford, UK. .,Present address: Royal Sussex County Hospital, Eastern road, Brighton, UK.
| | - Ansar A Pathan
- The Jenner Institute, University of Oxford, Oxford, UK. .,Present address: Centre for Infection, Immunity and Disease Mechanisms, Biosciences, School of Health Sciences and Social Care, Brunel University, Middlesex, UK.
| | - Rod Chalk
- Structural Genomics Consortium, University of Oxford, Oxford, UK.
| | - Clare R Sander
- The Jenner Institute, University of Oxford, Oxford, UK. .,Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
| | - Tom Scriba
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa.
| | - Michelle Tameris
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa.
| | - Tony Hawkridge
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa. .,Vaccines for Africa Initiative, Cape Town, South Africa.
| | - Hassan Mahomed
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa. .,Division of Community Health, Stellenbosch University, Stellenbosch, South Africa. .,Metropolitan District Health Services, Western Cape, Government: Health, Cape Town, South Africa.
| | - Greg Hussey
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa. .,Vaccines for Africa Initiative, Cape Town, South Africa.
| | - Willem Hanekom
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and School of Child and Adolescent Health, University of Cape Town, Cape Town, South Africa.
| | - Anna Checkley
- The Jenner Institute, University of Oxford, Oxford, UK. .,Present address: London School of Hygiene and Tropical Medicine, Keppel Street, London, UK.
| | - Helen McShane
- The Jenner Institute, University of Oxford, Oxford, UK.
| | - Helen A Fletcher
- The Jenner Institute, University of Oxford, Oxford, UK. .,Present address: London School of Hygiene and Tropical Medicine, Keppel Street, London, UK.
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48
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Rossetti C, Halfon O, Boutrel B. Controversies about a common etiology for eating and mood disorders. Front Psychol 2014; 5:1205. [PMID: 25386150 PMCID: PMC4209809 DOI: 10.3389/fpsyg.2014.01205] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 10/06/2014] [Indexed: 12/25/2022] Open
Abstract
Obesity and depression represent a growing health concern worldwide. For many years, basic science and medicine have considered obesity as a metabolic illness, while depression was classified a psychiatric disorder. Despite accumulating evidence suggesting that obesity and depression may share commonalities, the causal link between eating and mood disorders remains to be fully understood. This etiology is highly complex, consisting of multiple environmental and genetic risk factors that interact with each other. In this review, we sought to summarize the preclinical and clinical evidence supporting a common etiology for eating and mood disorders, with a particular emphasis on signaling pathways involved in the maintenance of energy balance and mood stability, among which orexigenic and anorexigenic neuropeptides, metabolic factors, stress responsive hormones, cytokines, and neurotrophic factors.
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Affiliation(s)
- Clara Rossetti
- Center for Psychiatric Neuroscience, Lausanne University Hospital Lausanne, Switzerland
| | - Olivier Halfon
- Division of Child and Adolescent Psychiatry, Department of Psychiatry, Lausanne University Hospital Lausanne, Switzerland
| | - Benjamin Boutrel
- Center for Psychiatric Neuroscience, Lausanne University Hospital Lausanne, Switzerland ; Division of Child and Adolescent Psychiatry, Department of Psychiatry, Lausanne University Hospital Lausanne, Switzerland
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49
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Schmidt SV, Schultze JL. New Insights into IDO Biology in Bacterial and Viral Infections. Front Immunol 2014; 5:384. [PMID: 25157255 PMCID: PMC4128074 DOI: 10.3389/fimmu.2014.00384] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 07/28/2014] [Indexed: 12/24/2022] Open
Abstract
Initially, indoleamine-2,3-dioxygenase (IDO) has been introduced as a bactericidal effector mechanism and has been linked to T-cell immunosuppression and tolerance. In recent years, evidence has been accumulated that IDO also plays an important role during viral infections including HIV, influenza, and hepatitis B and C. Moreover, novel aspects about the role of IDO in bacterial infections and sepsis have been revealed. Here, we review these recent findings highlighting the central role of IDO and tryptophan metabolism in many major human infections. Moreover, we also shed light on issues concerning human-specific and mouse-specific host–pathogen interactions that need to be considered when studying the biology of IDO in the context of infections.
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Affiliation(s)
- Susanne V Schmidt
- Genomics and Immunoregulation, LIMES-Institute, University of Bonn , Bonn , Germany
| | - Joachim L Schultze
- Genomics and Immunoregulation, LIMES-Institute, University of Bonn , Bonn , Germany
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50
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Dussurget O, Bierne H, Cossart P. The bacterial pathogen Listeria monocytogenes and the interferon family: type I, type II and type III interferons. Front Cell Infect Microbiol 2014; 4:50. [PMID: 24809023 PMCID: PMC4009421 DOI: 10.3389/fcimb.2014.00050] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 04/04/2014] [Indexed: 12/14/2022] Open
Abstract
Interferons (IFNs) are secreted proteins of the cytokine family that regulate innate and adaptive immune responses to infection. Although the importance of IFNs in the antiviral response has long been appreciated, their role in bacterial infections is more complex and is currently a major focus of investigation. This review summarizes our current knowledge of the role of these cytokines in host defense against the bacterial pathogen Listeria monocytogenes and highlights recent discoveries on the molecular mechanisms evolved by this intracellular bacterium to subvert IFN responses.
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Affiliation(s)
- Olivier Dussurget
- Unité des Interactions Bactéries-Cellules, Institut PasteurParis, France
- Inserm, U604Paris, France
- INRA, USC2020Paris, France
- University of Paris Diderot, Sorbonne Paris CitéParis, France
| | - Hélène Bierne
- Unité des Interactions Bactéries-Cellules, Institut PasteurParis, France
- Inserm, U604Paris, France
- INRA, USC2020Paris, France
| | - Pascale Cossart
- Unité des Interactions Bactéries-Cellules, Institut PasteurParis, France
- Inserm, U604Paris, France
- INRA, USC2020Paris, France
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