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Aşır F, Erdemci F, Çankırı Z, Korak T, Başaran SÖ, Kaplan Ö, Yükselmiş Ö, Dönmezdil N, Ayaz H, Kaplan Ş, Tunik S. Zonisamide Ameliorated the Apoptosis and Inflammation in Cerebellar Tissue of Induced Alcohol Addiction Animal Model. Life (Basel) 2024; 14:795. [PMID: 39063550 PMCID: PMC11278003 DOI: 10.3390/life14070795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 07/28/2024] Open
Abstract
This study investigated the effects of zonisamide treatment on cerebellar tissues in an experimental alcohol addiction (AA) model and its potential mechanisms of action, particularly regarding apoptotic protease activating factor-1 (APAF-1) and tumor necrosis factor-alpha (TNF-α) expression. Thirty rats were divided into three groups: sham, ethanol (EtOH), and EtOH + zonisamide. AA was induced by administering 6 cc of EtOH orally every 8 h for 4 days. Zonisamide (100 mg/kg) was given to rats once daily before EtOH administration. Motor defects were evaluated using an open field maze. Serum TNF-α levels were measured from blood samples. Cerebellar sections were processed for histological examination and immunostained for APAF-1 and TNF-α. Protein interaction networks were constructed using Cytoscape, and functional annotations were performed with ShinyGO (version 0.80) software. The traveled area in the EtOH group was significantly reduced compared to the sham group (p = 0.0005). Rats in the EtOH + zonisamide group covered a larger area, with zonisamide treatment significantly improving locomotor ability compared to the EtOH group (p = 0.0463). Serum TNF-α levels were significantly elevated in the EtOH group compared to the sham group (p < 0.0001) and were significantly decreased in the EtOH + zonisamide group compared to the EtOH group (p = 0.0309). Regular cerebellar histological layers were observed in the sham group, while EtOH induction caused loss of cerebellar tissue integrity, neuronal degeneration, vascular dilatation and congestion, reduced myelin density, and neuropils in the EtOH group. Zonisamide treatment improved these pathologies, enhancing myelination and neuropil formation. Negative APAF-1 and TNF-α expressions were observed across cerebellar layers in the sham group. Due to EtOH toxicity, APAF-1 and TNF-α expression were upregulated in the EtOH group compared to the sham group (p < 0.001 for both). Zonisamide treatment downregulated these protein expressions in the EtOH + zonisamide group compared to the EtOH group (p < 0.001 and p = 0.0087, respectively). APAF-1 was primarily associated with AA through antifolate resistance, endopeptidases, and the interleukin-1 pathway, while TNF-α was predominantly enriched in infections and choline-binding, indicating zonisamide's impact on immune and inflammatory pathways. In conclusion, zonisamide treatment significantly mitigated ethanol-induced cerebellar damage and inflammation in an AA model. Zonisamide improved locomotor function and reduced serum TNF-α levels, as well as APAF-1 and TNF-α expression in cerebellar tissues. These findings suggest that zonisamide exerts its protective effects by modulating immune and inflammatory pathways, thereby preserving cerebellar integrity and function.
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Affiliation(s)
- Fırat Aşır
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Fikri Erdemci
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Zuhal Çankırı
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Tuğcan Korak
- Department of Medical Biology, Medical Faculty, Kocaeli University, 41001 Kocaeli, Turkey
| | - Süreyya Özdemir Başaran
- Department of Andrology, Gazi Yasargil Education and Research Hospital, Health Sciences University, 21090 Diyarbakir, Turkey
| | - Özge Kaplan
- Department of Andrology, Gazi Yasargil Education and Research Hospital, Health Sciences University, 21090 Diyarbakir, Turkey
| | - Özkan Yükselmiş
- Division of Physical Medicine and Rehabilitation, Diyarbakır Dağ Kapı State Hospital, 21100 Diyarbakır, Turkey
| | - Nilüfer Dönmezdil
- Department of Audiology, Faculty of Health Sciences, Mardin Artuklu University, 47200 Mardin, Turkey
| | - Hayat Ayaz
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Şehmus Kaplan
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Selçuk Tunik
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
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Mouche A, Baron J, Toquet C, Le Corvec T, Maurel B, Benichou A, Mougin J. Homemade pericardial bifurcated graft for Q fever-infected abdominal aortic aneurysm open repair: a case report. Front Cardiovasc Med 2024; 11:1418949. [PMID: 38863900 PMCID: PMC11165120 DOI: 10.3389/fcvm.2024.1418949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/08/2024] [Indexed: 06/13/2024] Open
Abstract
Q fever is a zoonotic infection caused by Coxiella burnetii. In rare cases, it can lead to vascular complications, including infected aneurysms. Successful treatment involves surgery and antibiotics, but there is no established consensus or clear recommendation for the choice of material graft. We report a case of abdominal aortic aneurysm infected by C. burnetii treated by open surgery with complete resection of the aneurysm and homemade bovine pericardial bifurcated graft reconstruction and long-term antibiotherapy using doxycycline. One year postoperatively, the patient had no sign of persistent infection or vascular complication. Moreover, C. burnetii immunoglobulins titers decreased 6 months postoperatively.
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Affiliation(s)
- A. Mouche
- Vascular Surgery, Hospital G&R Laennec—CHU Nantes, St Herblain, France
| | - J. Baron
- Pathology Department, CHU Nantes, Nantes University, Nantes, France
| | - C. Toquet
- Pathology Department, CHU Nantes, Nantes University, Nantes, France
- L'Institut du Thorax, University of Nantes, CHU Nantes, CNRS, INSERM, Nantes, France
| | - T. Le Corvec
- Vascular Surgery, Hospital G&R Laennec—CHU Nantes, St Herblain, France
| | - B. Maurel
- Vascular Surgery, Hospital G&R Laennec—CHU Nantes, St Herblain, France
| | - A. Benichou
- Vascular Medicine, Hospital G&R Laennec—CHU NANTES, St Herblain, France
| | - J. Mougin
- Vascular Surgery, Hospital G&R Laennec—CHU Nantes, St Herblain, France
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Lu HJ, Guo D, Wei QQ. Potential of Neuroinflammation-Modulating Strategies in Tuberculous Meningitis: Targeting Microglia. Aging Dis 2024; 15:1255-1276. [PMID: 37196131 PMCID: PMC11081169 DOI: 10.14336/ad.2023.0311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/11/2023] [Indexed: 05/19/2023] Open
Abstract
Tuberculous meningitis (TBM) is the most severe complication of tuberculosis (TB) and is associated with high rates of disability and mortality. Mycobacterium tuberculosis (M. tb), the infectious agent of TB, disseminates from the respiratory epithelium, breaks through the blood-brain barrier, and establishes a primary infection in the meninges. Microglia are the core of the immune network in the central nervous system (CNS) and interact with glial cells and neurons to fight against harmful pathogens and maintain homeostasis in the brain through pleiotropic functions. However, M. tb directly infects microglia and resides in them as the primary host for bacillus infections. Largely, microglial activation slows disease progression. The non-productive inflammatory response that initiates the secretion of pro-inflammatory cytokines and chemokines may be neurotoxic and aggravate tissue injuries based on damages caused by M. tb. Host-directed therapy (HDT) is an emerging strategy for modulating host immune responses against diverse diseases. Recent studies have shown that HDT can control neuroinflammation in TBM and act as an adjunct therapy to antibiotic treatment. In this review, we discuss the diverse roles of microglia in TBM and potential host-directed TB therapies that target microglia to treat TBM. We also discuss the limitations of applying each HDT and suggest a course of action for the near future.
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Affiliation(s)
- Huan-Jun Lu
- Institute of Special Environmental Medicine, Nantong University, Jiangsu, China
| | - Daji Guo
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qian-Qi Wei
- Department of Infectious Diseases, General Hospital of Tibet Military Command, Xizang, China
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Wallings R, McFarland K, Staley H, Neighbarger N, Schaake S, Brueggemann N, Zittel S, Usnich T, Klein C, Sammler E, Tansey MG. The R1441C-LRRK2 mutation induces myeloid immune cell exhaustion in an age- and sex-dependent manner. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.12.562063. [PMID: 37905053 PMCID: PMC10614788 DOI: 10.1101/2023.10.12.562063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Considering age is the greatest risk factor for many neurodegenerative diseases, aging, in particular aging of the immune system, is the most underappreciated and understudied contributing factor in the neurodegeneration field. Genetic variation around the LRRK2 gene affects risk of both familial and sporadic Parkinson's disease (PD). The leucine-rich repeat kinase 2 (LRRK2) protein has been implicated in peripheral immune signaling, however, the effects of an aging immune system on LRRK2 function have been neglected to be considered. We demonstrate here that the R1441C mutation induces a hyper-responsive phenotype in macrophages from young female mice, characterized by increased effector functions, including stimulation-dependent antigen presentation, cytokine release, phagocytosis, and lysosomal function. This is followed by age-acquired immune cell exhaustion in a Lrrk2-kinase-dependent manner. Immune-exhausted macrophages exhibit suppressed antigen presentation and hypophagocytosis, which is also demonstrated in myeloid cells from R1441C and Y1699C-PD patients. Our novel findings that LRRK2 mutations confer immunological advantage at a young age but may predispose the carrier to age-acquired immune exhaustion have significant implications for LRRK2 biology and therapeutic development. Indeed, LRRK2 has become an appealing target in PD, but our findings suggest that more research is required to understand the cell-type specific consequences and optimal timing of LRRK2-targeting therapeutics.
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Céspedes N, Fellows AM, Donnelly EL, Kaylor HL, Coles TA, Wild R, Dobson M, Schauer J, Van de Water J, Luckhart S. Basophil-Derived IL-4 and IL-13 Protect Intestinal Barrier Integrity and Control Bacterial Translocation during Malaria. Immunohorizons 2024; 8:371-383. [PMID: 38780542 DOI: 10.4049/immunohorizons.2300084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 04/29/2024] [Indexed: 05/25/2024] Open
Abstract
Our previous work demonstrated that basophils regulate a suite of malaria phenotypes, including intestinal mastocytosis and permeability, the immune response to infection, gametocytemia, and parasite transmission to the malaria mosquito Anopheles stephensi. Given that activated basophils are primary sources of the regulatory cytokines IL-4 and IL-13, we sought to examine the contributions of these mediators to basophil-dependent phenotypes in malaria. We generated mice with basophils depleted for IL-4 and IL-13 (baso IL-4/IL-13 (-)) and genotype controls (baso IL-4/IL-13 (+)) by crossing mcpt8-Cre and Il4/Il13fl/fl mice and infected them with Plasmodium yoelii yoelii 17XNL. Conditional deletion was associated with ileal mastocytosis and mast cell (MC) activation, increased intestinal permeability, and increased bacterial 16S levels in blood, but it had no effect on neutrophil activation, parasitemia, or transmission to A. stephensi. Increased intestinal permeability in baso IL-4/IL-13 (-) mice was correlated with elevated plasma eotaxin (CCL11), a potent eosinophil chemoattractant, and increased ileal MCs, proinflammatory IL-17A, and the chemokines MIP-1α (CCL3) and MIP-1β (CCL4). Blood bacterial 16S copies were positively but weakly correlated with plasma proinflammatory cytokines IFN-γ and IL-12p40, suggesting that baso IL-4/IL-13 (-) mice failed to control bacterial translocation into the blood during malaria infection. These observations suggest that basophil-derived IL-4 and IL-13 do not contribute to basophil-dependent regulation of parasite transmission, but these cytokines do orchestrate protection of intestinal barrier integrity after P. yoelii infection. Specifically, basophil-dependent IL-4/IL-13 control MC activation and prevent infection-induced intestinal barrier damage and bacteremia, perhaps via regulation of eosinophils, macrophages, and Th17-mediated inflammation.
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Affiliation(s)
- Nora Céspedes
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID
| | - Abigail M Fellows
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID
| | - Erinn L Donnelly
- Department of Biological Sciences, University of Idaho, Moscow, ID
| | - Hannah L Kaylor
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID
| | - Taylor A Coles
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID
| | - Ryan Wild
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID
| | - Megan Dobson
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID
| | - Joseph Schauer
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA
| | - Judy Van de Water
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, CA
| | - Shirley Luckhart
- Department of Biological Sciences, University of Idaho, Moscow, ID
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Song Y, Yang P, Guo W, Lu P, Huang C, Cai Z, Jiang X, Yang G, Du Y, Zhao F. Supramolecular Hydrogel Dexamethasone-Diclofenac for the Treatment of Rheumatoid Arthritis. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:645. [PMID: 38607179 PMCID: PMC11013297 DOI: 10.3390/nano14070645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/03/2024] [Accepted: 04/06/2024] [Indexed: 04/13/2024]
Abstract
Rheumatoid arthritis (RA) severely affects patients' quality of life and is commonly treated with glucocorticosteroids injections, like dexamethasone, which may have side effects. This study aimed to create a novel low dose of twin-drug hydrogel containing dexamethasone and diclofenac and explore its potential as a drug delivery system for an enhanced anti-inflammatory effect. Its characterization involved rheology, transmission electron microscope (TEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). Furthermore, the hydrogel demonstrated thixotropic properties. The hydrogel exhibited no cytotoxicity against RAW 264.7 macrophages. Furthermore, the hydrogel demonstrated a significant anti-inflammatory efficacy by effectively downregulating the levels of NO, TNF-α, and IL-6 in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages. The co-delivery approach, when intra-articularly injected in adjuvant-induced arthritis (AIA) rats, significantly alleviated chronic inflammation leading to reduced synovitis, delayed bone erosion onset, and the downregulation of inflammatory cytokines. The biocompatibility and adverse effect evaluation indicated good biological safety. Furthermore, the hydrogel demonstrated efficacy in reducing NF-κB nuclear translocation in LPS-induced RAW 264.7 macrophages and inhibited p-NF-kB, COX-2, and iNOS expression both in RAW 264.7 macrophages and the joints of AIA rats. In conclusion, the findings indicate that the hydrogel possesses potent anti-inflammatory activity, which effectively addresses the limitations associated with free forms. It presents a promising therapeutic strategy for the management of RA.
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Affiliation(s)
- Yanqin Song
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
- Yantai Center for Food and Drug Control, Yantai 264005, China
| | - Pufan Yang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Wen Guo
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Panpan Lu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Congying Huang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Zhiruo Cai
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Xin Jiang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Gangqiang Yang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Yuan Du
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
| | - Feng Zhao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education of China, School of Pharmacy, Yantai University, Yantai 264005, China; (Y.S.); (P.Y.); (W.G.); (P.L.); (C.H.); (Z.C.); (X.J.); (G.Y.)
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Rodriguez-Sevilla JJ, Colla S. T-cell dysfunctions in myelodysplastic syndromes. Blood 2024; 143:1329-1343. [PMID: 38237139 DOI: 10.1182/blood.2023023166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/22/2023] [Accepted: 01/12/2024] [Indexed: 03/25/2024] Open
Abstract
ABSTRACT Escape from immune surveillance is a hallmark of cancer. Immune deregulation caused by intrinsic and extrinsic cellular factors, such as altered T-cell functions, leads to immune exhaustion, loss of immune surveillance, and clonal proliferation of tumoral cells. The T-cell immune system contributes to the pathogenesis, maintenance, and progression of myelodysplastic syndrome (MDS). Here, we comprehensively reviewed our current biological knowledge of the T-cell compartment in MDS and recent advances in the development of immunotherapeutic strategies, such as immune checkpoint inhibitors and T-cell- and antibody-based adoptive therapies that hold promise to improve the outcome of patients with MDS.
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Affiliation(s)
| | - Simona Colla
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
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Singh PR, Dadireddy V, Udupa S, Kalladi SM, Shee S, Khosla S, Rajmani RS, Singh A, Ramakumar S, Nagaraja V. The Mycobacterium tuberculosis methyltransferase Rv2067c manipulates host epigenetic programming to promote its own survival. Nat Commun 2023; 14:8497. [PMID: 38129415 PMCID: PMC10739865 DOI: 10.1038/s41467-023-43940-6] [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: 04/28/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Mycobacterium tuberculosis has evolved several mechanisms to counter host defense arsenals for its proliferation. Here we report that M. tuberculosis employs a multi-pronged approach to modify host epigenetic machinery for its survival. It secretes methyltransferase (MTase) Rv2067c into macrophages, trimethylating histone H3K79 in a non-nucleosomal context. Rv2067c downregulates host MTase DOT1L, decreasing DOT1L-mediated nucleosomally added H3K79me3 mark on pro-inflammatory response genes. Consequent inhibition of caspase-8-dependent apoptosis and enhancement of RIPK3-mediated necrosis results in increased pathogenesis. In parallel, Rv2067c enhances the expression of SESTRIN3, NLRC3, and TMTC1, enabling the pathogen to overcome host inflammatory and oxidative responses. We provide the structural basis for differential methylation of H3K79 by Rv2067c and DOT1L. The structures of Rv2067c and DOT1L explain how their action on H3K79 is spatially and temporally separated, enabling Rv2067c to effectively intercept the host epigenetic circuit and downstream signaling.
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Affiliation(s)
- Prakruti R Singh
- Department of Microbiology & Cell Biology, Indian Institute of Science (IISc), Bengaluru, India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, India
| | | | - Shubha Udupa
- Department of Microbiology & Cell Biology, Indian Institute of Science (IISc), Bengaluru, India
| | - Shashwath Malli Kalladi
- Department of Microbiology & Cell Biology, Indian Institute of Science (IISc), Bengaluru, India
| | - Somnath Shee
- Centre for Infectious Disease Research (CIDR), Department of Microbiology and Cell Biology, Indian Institute of Science (IISc), Bengaluru, India
| | - Sanjeev Khosla
- Council of Scientific and Industrial Research-Institute of Microbial Technology, Chandigarh (CSIR -IMTech), Chandigarh, India
| | - Raju S Rajmani
- Centre for Infectious Disease Research (CIDR), Department of Microbiology and Cell Biology, Indian Institute of Science (IISc), Bengaluru, India
| | - Amit Singh
- Centre for Infectious Disease Research (CIDR), Department of Microbiology and Cell Biology, Indian Institute of Science (IISc), Bengaluru, India
| | | | - Valakunja Nagaraja
- Department of Microbiology & Cell Biology, Indian Institute of Science (IISc), Bengaluru, India.
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, India.
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Wallings RL, Mark JR, Staley HA, Gillett DA, Neighbarger N, Kordasiewicz H, Hirst WD, Tansey MG. ASO-mediated knockdown or kinase inhibition of G2019S-Lrrk2 modulates lysosomal tubule-associated antigen presentation in macrophages. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102064. [PMID: 38028198 PMCID: PMC10661462 DOI: 10.1016/j.omtn.2023.102064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Genetic variation around the LRRK2 gene affects risk for both familial and sporadic Parkinson's disease (PD). LRRK2 levels have become an appealing target for potential PD therapeutics with LRRK2 antisense oligonucleotides (ASOs) now moving toward clinical trials. However, LRRK2 has been suggested to play a fundamental role in peripheral immunity, and it is currently unknown if targeting increased LRRK2 levels in peripheral immune cells will be beneficial or deleterious. Here it was observed that G2019S macrophages exhibited increased stimulation-dependent lysosomal tubule formation (LTF) and MHC-II trafficking from the perinuclear lysosome to the plasma membrane in an mTOR-dependent manner with concomitant increases in pro-inflammatory cytokine release. Both ASO-mediated knockdown of mutant Lrrk2 and LRRK2 kinase inhibition ameliorated this phenotype and decreased these immune responses in control cells. Given the critical role of antigen presentation, lysosomal function, and cytokine release in macrophages, it is likely LRRK2-targeting therapies with systemic activity may have therapeutic value with regard to mutant LRRK2, but deleterious effects on the peripheral immune system, such as altered pathogen control in these cells, should be considered when reducing levels of non-mutant LRRK2.
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Affiliation(s)
- Rebecca L. Wallings
- Department of Neuroscience, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Center for Translational Research in Neurodegenerative Disease, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
| | - Julian R. Mark
- Department of Neuroscience, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Center for Translational Research in Neurodegenerative Disease, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
| | - Hannah A. Staley
- Department of Neuroscience, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Center for Translational Research in Neurodegenerative Disease, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
| | - Drew A. Gillett
- Department of Neuroscience, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Center for Translational Research in Neurodegenerative Disease, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
| | - Noelle Neighbarger
- Department of Neuroscience, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Center for Translational Research in Neurodegenerative Disease, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
| | - Holly Kordasiewicz
- Neurology, Ionis Pharmaceuticals, 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Warren D. Hirst
- Neurodegenerative Diseases Research Unit, Biogen, 115 Broadway, Cambridge, MA 02142, USA
| | - Malú Gámez Tansey
- Department of Neuroscience, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Center for Translational Research in Neurodegenerative Disease, University of Florida, College of Medicine, McKnight Brain Institute, Gainesville, FL 32610, USA
- Department of Neurology and Fixel Institute for Neurological Diseases, University of Florida Health, Gainesville, FL 32608, USA
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Martin MD, Skon-Hegg C, Kim CY, Xu J, Kucaba TA, Swanson W, Pierson MJ, Williams JW, Badovinac VP, Shen SS, Ingersoll MA, Griffith TS. CD115 + monocytes protect microbially experienced mice against E. coli-induced sepsis. Cell Rep 2023; 42:113345. [PMID: 38111515 PMCID: PMC10727454 DOI: 10.1016/j.celrep.2023.113345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023] Open
Abstract
Uropathogenic E. coli (UPEC) is a primary organism responsible for urinary tract infections and a common cause of sepsis. Microbially experienced laboratory mice, generated by cohousing with pet store mice, exhibit increased morbidity and mortality to polymicrobial sepsis or lipopolysaccharide challenge. By contrast, cohoused mice display significant resistance, compared with specific pathogen-free mice, to a monomicrobial sepsis model using UPEC. CD115+ monocytes mediate protection in the cohoused mice, as depletion of these cells leads to increased mortality and UPEC pathogen burden. Further study of the cohoused mice reveals increased TNF-α production by monocytes, a skewing toward Ly6ChiCD115+ "classical" monocytes, and enhanced egress of Ly6ChiCD115+ monocytes from the bone marrow. Analysis of cohoused bone marrow also finds increased frequency and number of myeloid multipotent progenitor cells. These results show that a history of microbial exposure impacts innate immunity in mice, which can have important implications for the preclinical study of sepsis.
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Affiliation(s)
- Matthew D. Martin
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- These authors contributed equally
| | - Cara Skon-Hegg
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- These authors contributed equally
| | - Caleb Y. Kim
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455, USA
| | - Julie Xu
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Tamara A. Kucaba
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Whitney Swanson
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mark J. Pierson
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Jesse W. Williams
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Vladimir P. Badovinac
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA 52242, USA
| | - Steven S. Shen
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Molly A. Ingersoll
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR 8104, 75014 Paris, France
- Mucosal Inflammation and Immunity, Department of Immunology, Institut Pasteur, Inserm U1223, 75015 Paris, France
| | - Thomas S. Griffith
- Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA
- Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
- Lead contact
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11
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Makabenta JMV, Nabawy A, Chattopadhyay AN, Park J, Li CH, Goswami R, Luther DC, Huang R, Hassan MA, Rotello VM. Antimicrobial-loaded biodegradable nanoemulsions for efficient clearance of intracellular pathogens in bacterial peritonitis. Biomaterials 2023; 302:122344. [PMID: 37857021 PMCID: PMC10872928 DOI: 10.1016/j.biomaterials.2023.122344] [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: 04/17/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
Intracellular pathogenic bacteria use immune cells as hosts for bacterial replication and reinfection, leading to challenging systemic infections including peritonitis. The spread of multidrug-resistant (MDR) bacteria and the added barrier presented by host cell internalization limit the efficacy of standard antibiotic therapies for treating intracellular infections. We present a non-antibiotic strategy to treat intracellular infections. Antimicrobial phytochemicals were stabilized and delivered by polymer-stabilized biodegradable nanoemulsions (BNEs). BNEs were fabricated using different phytochemicals, with eugenol-loaded BNEs (E-BNEs) affording the best combination of antimicrobial efficacy, macrophage accumulation, and biocompatibility. The positively-charged polymer groups of the E-BNEs bind to the cell surface of macrophages, facilitating the entry of eugenol that then kills the intracellular bacteria without harming the host cells. Confocal imaging and flow cytometry confirmed that this entry occurred mainly via cholesterol-dependent membrane fusion. As eugenol co-localized and interacted with intracellular bacteria, antibacterial efficacy was maintained. E-BNEs reversed the immunosuppressive effects of MRSA on macrophages. Notably, E-BNEs did not elicit resistance selection after multiple exposures of MRSA to sub-therapeutic doses. The E-BNEs were highly effective against a murine model of MRSA-induced peritonitis with better bacterial clearance (99 % bacteria reduction) compared to clinically-employed treatment with vancomycin. Overall, these findings demonstrate the potential of E-BNEs in treating peritonitis and other refractory intracellular infections.
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Affiliation(s)
- Jessa Marie V Makabenta
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Ahmed Nabawy
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Aritra Nath Chattopadhyay
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Jungmi Park
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Cheng-Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Ritabrita Goswami
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - David C Luther
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Rui Huang
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Muhammad Aamir Hassan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA, 01003, United States.
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12
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Wallings RL, Mark JR, Staley HA, Gillett DA, Neighbarger N, Kordasiewicz H, Hirst WD, Tansey MG. Totally tubular: ASO-mediated knock-down of G2019S -Lrrk2 modulates lysosomal tubule-associated antigen presentation in macrophages. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.14.549028. [PMID: 37503274 PMCID: PMC10370014 DOI: 10.1101/2023.07.14.549028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Genetic variation around the LRRK2 gene affects risk of both familial and sporadic Parkinson's disease (PD). LRRK2 levels have become an appealing target for potential PD-therapeutics with LRRK2 antisense oligonucleotides (ASOs) now in clinical trials. However, LRRK2 has been suggested to play a fundamental role in peripheral immunity, and it is currently unknown if targeting increased LRRK2 levels in peripheral immune cells will be beneficial or deleterious. Furthermore, the precise role of LRRK2 in immune cells is currently unknown, although it has been suggested that LRRK2-mediated lysosomal function may be crucial to immune responses. Here, it was observed that G2019S macrophages exhibited increased stimulation-dependent lysosomal tubule formation (LTF) and MHC-II trafficking from the perinuclear lysosome to the plasma membrane in an mTOR dependent manner with concomitant increases in pro-inflammatory cytokine release. Both ASO-mediated knock down of mutant Lrrk 2 and LRRK2 kinase inhibition ameliorated this phenotype and decreased these immune responses in control cells. Given the critical role of antigen presentation, lysosomal function, and cytokine release in macrophages, it is likely LRRK2-targetting therapies may have therapeutic value with regards to mutant LRRK2 but deleterious effects on the peripheral immune system, such as altered pathogen control and infection resolution.
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13
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Mao LR, Du JP, Wang XC, Xu LF, Zhang YP, Sun QS, Shi ZL, Xing YR, Su YX, Wang SJ, Wang J, Ma JL, Zhang JY. Long-Term Immunogenicity and In Vitro Prophylactic Protective Efficacy of M. tuberculosis Fusion Protein DR2 Combined with Liposomal Adjuvant DIMQ as a Boosting Vaccine for BCG. ACS Infect Dis 2023; 9:593-608. [PMID: 36808986 DOI: 10.1021/acsinfecdis.2c00570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The resuscitation of dormant Mycobacterium tuberculosis is an important cause of adult tuberculosis (TB) transmission. According to the interaction mechanism between M. tuberculosis and the host, the latency antigen Rv0572c and region of difference 9 (RD9) antigen Rv3621c were selected in this study to prepare the fusion protein DR2. Stimulating clinically diagnosed active tuberculosis infections (i.e., TB patients), latent tuberculosis infections, and healthy controls confirmed that T lymphocytes could recognize DR2 protein in the peripheral blood of TB-infected individuals more than subcomponent protein. The DR2 protein was then emulsified in the liposome adjuvant dimethyl dioctadecyl ammonium bromide, and imiquimod (DIMQ) was administered to C57BL/6 mice immunized with Bacillus Calmette-Guérin (BCG) vaccine to evaluate their immunogenicity. Studies have shown that DR2/DIMQ, a booster vaccine for BCG primary immunization, can elicit robust CD4+ Th1 cell immune response and predominant IFN-γ+ CD4+ effector memory T cells (TEM) subsets. Furthermore, the serum antibody level and the expression of related cytokines increased significantly with the extension of immunization time, with IL2+, CD4+, or CD8+ central memory T cells (TCM) subsets predominant in the long term. This immunization strategy showed matched prophylactic protective efficacy by performing in vitro challenge experiment. This result provides robust evidence that the novel subunit vaccine prepared by fusion protein DR2 combined with liposomal adjuvant DIMQ is a promising TB vaccine candidate for further preclinical trials as a booster vaccine for BCG.
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Affiliation(s)
- Li-Rong Mao
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan 232001, China
| | - Jian-Peng Du
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan 232001, China
| | - Xiao-Chun Wang
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan 232001, China
| | - Li-Fa Xu
- Department of Immunology, School of Medicine, Anhui University of Science and Technology, Huainan 232001, China
| | - Yan-Peng Zhang
- Department of Cosmetology, School of Medicine, Huainan Union University, Huainan 232038, China
| | - Qi-Shan Sun
- Department of Clinical Laboratory, Huainan Chaoyang Hospital, Huainan 232007, China
| | - Zi-Lun Shi
- Department of Clinical Laboratory, Affiliated Cancer Hospital, Anhui University of Science and Technology, Huainan 232035, China
| | - Ying-Ru Xing
- Department of Clinical Laboratory, Anhui Zhongke Gengjiu Hospital, Hefei 230000, China
| | - Yi-Xin Su
- Department of Clinical Laboratory, Affiliated Cancer Hospital, Anhui University of Science and Technology, Huainan 232035, China
| | - Sheng-Jian Wang
- Department of Clinical Laboratory, Huainan Chaoyang Hospital, Huainan 232007, China
| | - Jian Wang
- Department of Pathogen Biology, School of Medicine, Anhui University of Science and Technology, Huainan 232001, China
| | - Ji-Lei Ma
- Department of Clinical Laboratory, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - Jing-Yan Zhang
- Department of Clinical Laboratory, Affiliated Heping Hospital, Changzhi Medical College, Changzhi 046000, China
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14
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Adnan M, Siddiqui AJ, Noumi E, Hannachi S, Ashraf SA, Awadelkareem AM, Snoussi M, Badraoui R, Bardakci F, Sachidanandan M, Patel M, Patel M. Integrating Network Pharmacology Approaches to Decipher the Multi-Target Pharmacological Mechanism of Microbial Biosurfactants as Novel Green Antimicrobials against Listeriosis. Antibiotics (Basel) 2022; 12:antibiotics12010005. [PMID: 36671206 PMCID: PMC9854906 DOI: 10.3390/antibiotics12010005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Listeria monocytogenes (L. monocytogenes) is a serious food-borne pathogen that can cause listeriosis, an illness caused by eating food contaminated with this pathogen. Currently, the treatment or prevention of listeriosis is a global challenge due to the resistance of bacteria against multiple commonly used antibiotics, thus necessitating the development of novel green antimicrobials. Scientists are increasingly interested in microbial surfactants, commonly known as "biosurfactants", due to their antimicrobial properties and eco-friendly nature, which make them an ideal candidate to combat a variety of bacterial infections. Therefore, the present study was designed to use a network pharmacology approach to uncover the active biosurfactants and their potential targets, as well as the signaling pathway(s) involved in listeriosis treatment. In the framework of this study, 15 biosurfactants were screened out for subsequent studies. Among 546 putative targets of biosurfactants and 244 targets of disease, 37 targets were identified as potential targets for treatment of L. monocytogenes infection, and these 37 targets were significantly enriched in a Gene Ontology (GO) analysis, which aims to identify those biological processes, cellular locations, and molecular functions that are impacted in the condition studied. The obtained results revealed several important biological processes, such as positive regulation of MAP kinase activity, protein kinase B signaling, ERK1 and ERK2 cascade, ERBB signaling pathway, positive regulation of protein serine/threonine kinase activity, and regulation of caveolin-mediated endocytosis. Several important KEGG pathways, such as the ERBBB signaling pathway, TH17 cell differentiation, HIF-1 signaling pathway, Yersinia infection, Shigellosis, and C-type lectin receptor signaling pathways, were identified. The protein-protein interaction analysis yielded 10 core targets (IL2, MAPK1, EGFR, PTPRC, TNF, ITGB1, IL1B, ERBB2, SRC, and mTOR). Molecular docking was used in the latter part of the study to verify the effectiveness of the active biosurfactants against the potential targets. Lastly, we found that a few highly active biosurfactants, namely lichenysin, iturin, surfactin, rhamnolipid, subtilisin, and polymyxin, had high binding affinities towards IL2, MAPK1, EGFR, PTPRC, TNF, ITGB1, IL1B, ERBB2, SRC, and mTOR, which may act as potential therapeutic targets for listeriosis. Overall, based on the integrated network pharmacology and docking analysis, we found that biosurfactants possess promising anti-listeriosis properties and explored the pharmacological mechanisms behind their effect, laying the groundwork for further research and development.
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Affiliation(s)
- Mohd Adnan
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Arif Jamal Siddiqui
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Emira Noumi
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Sami Hannachi
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Syed Amir Ashraf
- Department of Clinical Nutrition, College of Applied Medial Sciences, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Amir Mahgoub Awadelkareem
- Department of Clinical Nutrition, College of Applied Medial Sciences, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Mejdi Snoussi
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Riadh Badraoui
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
- Section of Histology-Cytology, Medicine Faculty of Tunis, University of Tunis El Manar, La Rabta 1007, Tunis, Tunisia
| | - Fevzi Bardakci
- Department of Biology, College of Science, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Manojkumar Sachidanandan
- Department of Oral Radiology, College of Dentistry, University of Hail, Hail P.O. Box 2440, Saudi Arabia
| | - Mirav Patel
- Department of Biotechnology, Parul Institute of Applied Sciences and Centre of Research for Development, Parul University, Vadodara 391760, India
| | - Mitesh Patel
- Department of Biotechnology, Parul Institute of Applied Sciences and Centre of Research for Development, Parul University, Vadodara 391760, India
- Correspondence:
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15
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Cavagnero KJ, Gallo RL. Essential immune functions of fibroblasts in innate host defense. Front Immunol 2022; 13:1058862. [PMID: 36591258 PMCID: PMC9797514 DOI: 10.3389/fimmu.2022.1058862] [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: 09/30/2022] [Accepted: 11/09/2022] [Indexed: 12/23/2022] Open
Abstract
The term fibroblast has been used generally to describe spindle-shaped stromal cells of mesenchymal origin that produce extracellular matrix, establish tissue structure, and form scar. Current evidence has found that cells with this morphology are highly heterogeneous with some fibroblastic cells actively participating in both innate and adaptive immune defense. Detailed analysis of barrier tissues such as skin, gut, and lung now show that some fibroblasts directly sense pathogens and other danger signals to elicit host defense functions including antimicrobial activity, leukocyte recruitment, and production of cytokines and lipid mediators relevant to inflammation and immunosuppression. This review will synthesize current literature focused on the innate immune functions performed by fibroblasts at barrier tissues to highlight the previously unappreciated importance of these cells in immunity.
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Affiliation(s)
| | - Richard L. Gallo
- Department of Dermatology, University of California, San Diego, La Jolla, CA, United States
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16
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Donnelly EL, Céspedes N, Hansten G, Wagers D, Briggs AM, Lowder C, Schauer J, Garrison SM, Haapanen L, Van de Water J, Luckhart S. Basophil Depletion Alters Host Immunity, Intestinal Permeability, and Mammalian Host-to-Mosquito Transmission in Malaria. Immunohorizons 2022; 6:581-599. [PMID: 35970557 PMCID: PMC9977168 DOI: 10.4049/immunohorizons.2200055] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 07/18/2022] [Indexed: 02/03/2023] Open
Abstract
Malaria-induced bacteremia has been shown to result from intestinal mast cell (MC) activation. The appearance of MCs in the ileum and increased intestinal permeability to enteric bacteria are preceded by an early Th2-biased host immune response to infection, characterized by the appearance of IL-4, IL-10, mast cell protease (Mcpt)1 and Mcpt4, and increased circulating basophils and eosinophils. Given the functional similarities of basophils and MCs in the context of allergic inflammation and the capacity of basophils to produce large amounts of IL-4, we sought to define the role of basophils in increased intestinal permeability, in MC influx, and in the development of bacteremia in the context of malaria. Upon infection with nonlethal Plasmodium yoelii yoelii 17XNL, Basoph8 × ROSA-DTα mice or baso (-) mice that lack basophils exhibited increased intestinal permeability and increased ileal MC numbers, without any increase in bacterial 16S ribosomal DNA copy numbers in the blood, relative to baso (+) mice. Analysis of cytokines, chemokines, and MC-associated factors in the ileum revealed significantly increased TNF-α and IL-13 at day 6 postinfection in baso (-) mice compared with baso (+) mice. Moreover, network analysis of significantly correlated host immune factors revealed profound differences between baso (-) and baso (+) mice following infection in both systemic and ileal responses to parasites and translocated bacteria. Finally, basophil depletion was associated with significantly increased gametocytemia and parasite transmission to Anopheles mosquitoes, suggesting that basophils play a previously undescribed role in controlling gametocytemia and, in turn, mammalian host-to-mosquito parasite transmission.
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Affiliation(s)
- Erinn L Donnelly
- Department of Biological Sciences, University of Idaho, Moscow, ID
| | - Nora Céspedes
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Gretchen Hansten
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Delaney Wagers
- Department of Biological Sciences, University of Idaho, Moscow, ID
| | - Anna M Briggs
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Casey Lowder
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Joseph Schauer
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA
| | - Sarah M Garrison
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
| | - Lori Haapanen
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA
| | - Judy Van de Water
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA
| | - Shirley Luckhart
- Department of Biological Sciences, University of Idaho, Moscow, ID; .,Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID; and
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17
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Song J, Chao J, Hu X, Wen X, Ding C, Li D, Zhang D, Han S, Yu X, Yan B, Jin Z, Song Y, Gonzales J, Via LE, Zhang L, Wang D. E3 Ligase FBXW7 Facilitates Mycobacterium Immune Evasion by Modulating TNF-α Expression. Front Cell Infect Microbiol 2022; 12:851197. [PMID: 35651754 PMCID: PMC9149249 DOI: 10.3389/fcimb.2022.851197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 03/24/2022] [Indexed: 11/26/2022] Open
Abstract
Tumor necrosis factor alpha (TNF-α) is a crucial factor in the control of Mycobacterium tuberculosis (Mtb) infection. Pathogenic mycobacteria can inhibit and/or regulate host cell TNF-α production in a variety of ways to evade antituberculosis (anti-TB) immunity as well as facilitate immune escape. However, the mechanisms by which TNF-α expression in host cells is modulated to the benefit of mycobacteria is still an interesting topic and needs further study. Here, we report that macrophages infected with Mycobacterium marinum (Mm)—a close relative of Mtb—upregulated the expression of E3 ubiquitin ligase FBXW7. Specific silencing FBXW7 with small interfering RNA (siRNA) significantly elevates TNF-α expression and eventually promotes the elimination of intracellular bacteria. In turn, overexpression of FBXW7 in Raw264.7 macrophages markedly decreased TNF-α production. Furthermore, partial inhibition of FBXW7 in an Mm-infected murine model significantly reduced TNF-α tissue content, alleviated tissue damage as well as reduced the bacterial load of mouse tails. Finally, FBXW7 could decrease TNF-α in a K63-linked ubiquitin signaling dependent manner. Taken together, our study uncovered a previously unknown role of FBXW7 in regulating TNF-α dynamics during mycobacterial infection, which provides new insights into understanding the role of FBXW7 in anti-tuberculosis immunity and its related clinical significance.
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Affiliation(s)
- Jingrui Song
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Jin Chao
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Xiaohong Hu
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Department of Tuberculosis, The Third People’s Hospital of Yichang, Yichang, China
| | - Xin Wen
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Cairong Ding
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Dan Li
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Department of Tuberculosis, The Third People’s Hospital of Yichang, Yichang, China
| | - Ding Zhang
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
- Department of Pathology, Yichang Central People’s Hospital, Yichang, China
| | - Shanshan Han
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Xiang Yu
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Bo Yan
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Zhu Jin
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Department of Tuberculosis, The Third People’s Hospital of Yichang, Yichang, China
| | - Yinhong Song
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
| | - Jacqueline Gonzales
- Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, and Tuberculosis Imaging Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Laura E. Via
- Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, and Tuberculosis Imaging Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Lu Zhang
- Engineering Research Center of Gene Technology, Ministry of Education, Department of Microbiology, School of Life Science, Fudan University, Shanghai, China
- *Correspondence: Lu Zhang, ; Decheng Wang,
| | - Decheng Wang
- Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang, China
- Institute of Infection and Inflammation, China Three Gorges University, Yichang, China
- Medical College, China Three Gorges University, Yichang, China
- *Correspondence: Lu Zhang, ; Decheng Wang,
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18
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Liang Y, Fisher J, Gonzales C, Trent B, Card G, Sun J, Tumanov AV, Soong L. Distinct Role of TNFR1 and TNFR2 in Protective Immunity Against Orientia tsutsugamushi Infection in Mice. Front Immunol 2022; 13:867924. [PMID: 35479068 PMCID: PMC9035742 DOI: 10.3389/fimmu.2022.867924] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/21/2022] [Indexed: 02/05/2023] Open
Abstract
Infection with Orientia tsutsugamushi, an obligate intracellular bacterium, can cause mild or severe scrub typhus. Some patients develop acute lung injury, multi-organ failure, and fatal infection; however, little is known regarding key immune mediators that mediate infection control or disease pathogenesis. Using murine models of scrub typhus, we demonstrated in this study the requirement of TNF-TNFR signaling in protective immunity against this infection. Mice lacking both TNF receptors (TNFR1 and TNFR2) were highly susceptible to O. tsutsugamushi infection, displaying significantly increased tissue bacterial burdens and succumbing to infection by day 9, while most wild-type mice survived through day 20. This increased susceptibility correlated with poor activation of cellular immunity in inflamed tissues. Flow cytometry of lung- and spleen-derived cells revealed profound deficiencies in total numbers and activation status of NK cells, neutrophils, and macrophages, as well as CD4 and CD8 T cells. To define the role of individual receptors in O. tsutsugamushi infection, we used mice lacking either TNFR1 or TNFR2. While deficiency in either receptor alone was sufficient to increase host susceptibility to the infection, TNFR1 and TNFR2 played a distinct role in cellular responses. TNF signaling through TNFR1 promoted inflammatory responses and effector T cell expansion, while TNFR2 signaling was associated with anti-inflammatory action and tissue homeostasis. Moreover, TNFRs played an intrinsic role in CD8+ T cell activation, revealing an indispensable role of TNF in protective immunity against O. tsutsugamushi infection.
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Affiliation(s)
- Yuejin Liang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States
| | - James Fisher
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
| | - Casey Gonzales
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Brandon Trent
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Galen Card
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Jiaren Sun
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States
- Department of Pathology, University of Texas Medical Branch, Galveston, 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
| | - Lynn Soong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
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Bharti R, Roy T, Verma S, Reddy DS, Shafi H, Verma K, Raman SK, Pal S, Azmi L, Singh AK, Ray L, Mugale MN, Misra A. Transient, inhaled gene therapy with gamma interferon mitigates pathology induced by host response in a mouse model of tuberculosis. Tuberculosis (Edinb) 2022; 134:102198. [DOI: 10.1016/j.tube.2022.102198] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/10/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022]
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Chanyalew M, Abebe M, Endale B, Girma S, Tasew G, van Zandbergen G, Ritter U, Gadisa E, Aseffa A, Laskay T. Enhanced production of pro-inflammatory cytokines and chemokines in Ethiopian cutaneous leishmaniasis upon exposure to Leishmania aethiopica. Cytokine 2020; 145:155289. [PMID: 32951968 DOI: 10.1016/j.cyto.2020.155289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/02/2020] [Accepted: 09/06/2020] [Indexed: 11/18/2022]
Abstract
The clinical course and outcome of cutaneous leishmaniasis (CL) vary due to the infecting Leishmania species and host genetic makeup that result in different immune responses against the parasites. The host immune response to Leishmania aethiopica (L.aethiopica), the causative agent of CL in Ethiopia, is poorly understood. To contribute to the understanding of the protective immune response in CL due to L.aethiopica, we characterized the cytokine response to L. aethiopica in patients with the localized form of CL (LCL) and age-and sex-matched apparently healthy controls. By applying a whole blood based in vitro culture we found enhanced release of TNF, IL-6, MCP-1 or CCL2, IP-10 or CXCL10, MIP-1β or CCL4 and IL-8 or CXCL8- but not of IL-10CL patients in response to L. aethiopica compared to the controls. No difference was observed between LCL cases and controls in the secretion of these cytokines and chemokines in whole blood cultures treated with the TLR-ligands LPS, MALP-2 or polyI: C. The observed increased secretion of the pro-inflammatory cytokines/chemokines reflects an enhanced response against the parasites by LCL patients as compared to healthy controls rather than a generally enhanced ability of blood leukocytes from LCL patients to respond to microbial constituents. Our findings suggest that the enhanced production of pro-inflammatory cytokines/chemokines is associated with localized cutaneous leishmaniasis caused by L.aethiopica.
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Affiliation(s)
- Menberework Chanyalew
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia.
| | - Markos Abebe
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia
| | - Birtukan Endale
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia
| | - Selfu Girma
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia
| | - Geremew Tasew
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia; Leishmaniasis Research Laboratory, Ethiopia Public Health Institute, P.O. Box 1242, Addis Ababa, Ethiopia
| | - Ger van Zandbergen
- Division of Immunology, Paul-Ehrlich-Institute, Federal Institute for Vaccines and Biomedicines, Langen D-63225, Germany.
| | - Uwe Ritter
- Regensburg Center for Interventional Immunology (RCI), Institute of Immunology, University Medical Center Regensburg, University of Regensburg, D-93053 Regensburg, Germany.
| | - Endalamaw Gadisa
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia
| | - Abraham Aseffa
- Research and Innovation Division, Armauer Hansen Research Institute, P.O. Box 1005, Addis Ababa, Ethiopia
| | - Tamás Laskay
- Department of Infectious Diseases and Microbiology, University of Lübeck, D-23560 Lübeck, Germany.
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