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Yabaji SM, Zhernovkov V, Araveti PB, Lata S, Rukhlenko OS, Abdullatif SA, Alekseev Y, Ma Q, Dayama G, Lau NC, Bishai WR, Crossland NA, Campbell JD, Kholodenko BN, Gimelbrant AA, Kobzik L, Kramnik I. Myc Dysregulation in Activated Macrophages Initiates Iron-Mediated Lipid Peroxidation that Fuels Type I Interferon and Compromises TB Resistance. bioRxiv 2024:2024.03.05.583602. [PMID: 38496444 PMCID: PMC10942339 DOI: 10.1101/2024.03.05.583602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
A quarter of human population is infected with Mycobacterium tuberculosis, but less than 10% of those infected develop clinical, mostly pulmonary, TB. To dissect mechanisms of susceptibility in immunocompetent individuals, we developed a genetically defined sst1-susceptible mouse model that uniquely reproduces a defining feature of human TB: development of necrotic lung lesions after infection with virulent Mtb. In this study, we explored the connectivity of the sst1-regulated pathways during prolonged macrophage activation with TNF. We determined that the aberrant response of the sst1-susceptible macrophages to TNF was primarily driven by conflicting Myc and antioxidant response pathways that resulted in a coordinated failure to properly sequester intracellular iron and activate ferroptosis inhibitor enzymes. Consequently, iron-mediated lipid peroxidation fueled IFNβ superinduction and sustained the Type I Interferon (IFN-I) pathway hyperactivity that locked the sst1-susceptible macrophages in a state of unresolving stress and compromised their resistance to Mtb. The accumulation of the aberrantly activated, stressed, macrophages within granuloma microenvironment led to the local failure of anti-tuberculosis immunity and tissue necrosis. Our findings suggest a novel link between metabolic dysregulation in macrophages and susceptibility to TB, offering insights into potential therapeutic targets aimed at modulating macrophage function and improving TB control.
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Affiliation(s)
- Shivraj M. Yabaji
- The National Emerging Infectious Diseases Laboratory, Boston University, Boston, MA
| | - Vadim Zhernovkov
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
| | | | - Suruchi Lata
- The National Emerging Infectious Diseases Laboratory, Boston University, Boston, MA
| | - Oleksii S. Rukhlenko
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Salam Al Abdullatif
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA
| | - Yuriy Alekseev
- The Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118
| | - Qicheng Ma
- Department of Biochemistry, and Cell Biology and Genome Science Institute, Boston University Chobanian & Avedisian School of Medicine
| | - Gargi Dayama
- Department of Biochemistry, and Cell Biology and Genome Science Institute, Boston University Chobanian & Avedisian School of Medicine
| | - Nelson C. Lau
- The National Emerging Infectious Diseases Laboratory, Boston University, Boston, MA
- Department of Biochemistry, and Cell Biology and Genome Science Institute, Boston University Chobanian & Avedisian School of Medicine
| | - William R. Bishai
- Center for TB Research, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Nicholas A. Crossland
- The National Emerging Infectious Diseases Laboratory, Boston University, Boston, MA
- The Department of Pathology and Laboratory Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA 02118
| | - Joshua D. Campbell
- Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA
| | - Boris N. Kholodenko
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
- Conway Institute of Biomolecular & Biomedical Research, University College Dublin, Dublin 4, Ireland
- Department of Pharmacology, Yale University School of Medicine, New Haven CT, USA
| | | | | | - Igor Kramnik
- The National Emerging Infectious Diseases Laboratory, Boston University, Boston, MA
- Pulmonary Center, The Department of Medicine, Boston University Chobanian & Avedisian School of Medicine
- Dept. of Microbiology, Boston University Chobanian & Avedisian School of Medicine
- Lead contact
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Gregory DJ, Han F, Li P, Gritsenko M, Kyle J, Riley FE, Chavez D, Yotova V, Sindeaux RH, Hawash MBF, Xu F, Hung LY, Hayden DL, Tompkins RG, Lanford RE, Kobzik L, Hellman J, Jacobs JM, Barreiro LB, Xiao W, Warren HS. Multi-Omic blood analysis reveals differences in innate inflammatory sensitivity between species. medRxiv 2023:2023.11.30.23299243. [PMID: 38076828 PMCID: PMC10705660 DOI: 10.1101/2023.11.30.23299243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Vertebrates differ greatly in responses to pro-inflammatory agonists such as bacterial lipopolysaccharide (LPS), complicating use of animal models to study human sepsis or inflammatory disorders. We compared transcriptomes of resting and LPS-exposed blood from six LPS-sensitive species (rabbit, pig, sheep, cow, chimpanzee, human) and four LPS-resilient species (mice, rats, baboon, rhesus), as well as plasma proteomes and lipidomes. Unexpectedly, at baseline, sensitive species already had enhanced expression of LPS-responsive genes relative to resilient species. After LPS stimulation, maximally different genes in resilient species included genes that detoxify LPS, diminish bacterial growth, discriminate sepsis from SIRS, and play roles in autophagy and apoptosis. The findings reveal the molecular landscape of species differences in inflammation, and may inform better selection of species for pre-clinical models.
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Affiliation(s)
- David J. Gregory
- Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Feifei Han
- Harvard Medical School, Boston, MA, USA
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Peng Li
- Harvard Medical School, Boston, MA, USA
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Marina Gritsenko
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland WA, USA
| | - Jennifer Kyle
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland WA, USA
| | - Frank E. Riley
- Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA
| | - Deborah Chavez
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio TX, USA
| | - Vania Yotova
- Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
| | | | - Mohamed B. F. Hawash
- Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
- Department of Biochemistry, University of Montréal, Montréal, Québec, Canada
| | - Fengyun Xu
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, CA, USA
| | - Li-Yuan Hung
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Douglas L. Hayden
- Harvard Medical School, Boston, MA, USA
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ron G. Tompkins
- Harvard Medical School, Boston, MA, USA
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Robert E. Lanford
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio TX, USA
| | - Lester Kobzik
- Program in Molecular and Integrative Physiological Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Judith Hellman
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, CA, USA
| | - Jonathan M. Jacobs
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland WA, USA
| | - Luis B. Barreiro
- Centre Hospitalier Universitaire Sainte-Justine, Montréal, Québec, Canada
- Department of Biochemistry, University of Montréal, Montréal, Québec, Canada
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, IL, USA
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
- Committee on Genetics, Genomics, and Systems Biology, University of Chicago, Chicago, IL, USA
- Committee on Immunology, University of Chicago, Chicago, IL, USA
| | - Wenzhong Xiao
- Harvard Medical School, Boston, MA, USA
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - H. Shaw Warren
- Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Medicine, Massachusetts General Hospital, Boston, MA
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Bhattacharya J, Booy R, Casadevall A, Dela Cruz C, Fedson D, Garcia JGN, Grohmann G, Hung IFN, Jacobson J, Jennings LC, Kobzik L, Leligdowicz A, Liao JK, Martin JH, Musher DM, Serhan CN, Tashiro M. A practical treatment for COVID-19 and the next pandemic. Pharmacol Res Perspect 2022; 10:e00988. [PMID: 35837790 PMCID: PMC9284194 DOI: 10.1002/prp2.988] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/01/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
- Jahar Bhattacharya
- Department of Physiology & Cellular BiophysicsVagelos Columbia College of Physicians & SurgeonsNew YorkNew YorkUSA
| | - Robert Booy
- Department of Child and Adolescent HealthUniversity of Sydney Medical SchoolCamperdownNew South WalesAustralia
| | - Arturo Casadevall
- Department of Molecular Biology & ImmunologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Charles Dela Cruz
- Department of MedicineYale School of MedicineNew HavenConnecticutUSA
| | | | - Joe G. N. Garcia
- Department of MedicineUniversity of Arizona College of MedicineTucsonArizonaUSA
| | - Gary Grohmann
- Director of ImmunobiologyTherapeutic Goods AdministrationCanberraAustralia
| | - Ivan F. N. Hung
- Department of MedicineUniversity of Hong KongPokfulamHong Kong
| | - Jeffrey R. Jacobson
- Department of MedicineUniversity of Illinois College of Medicine‐ChicagoChicagoIllinoisUSA
| | - Lance C. Jennings
- Department of Pathology & Biomedical ScienceUniversity of OtagoDunedinNew Zealand
| | - Lester Kobzik
- Department of Environmental HealthHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
| | | | - James K. Liao
- Department of MedicineUniversity of Chicago Pritzker School of MedicineChicagoIllinoisUSA
| | - Jennifer H. Martin
- Discipline of Clinical PharmacologyUniversity of Newcastle School of Medicine and Public HealthCallaghanNew South WalesAustralia
| | | | - Charles N. Serhan
- Department of Anesthesiology, Perioperative & Pain MedicineMass General Brigham‐Harvard Medical SchoolBostonMassachusettsUSA
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Chenchik A, Makhanov M, Liu T, Kobzik L. Abstract 625: Immunophenotyping of TCR and BCR clonotypes. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
TCR and BCR repertoire profiling holds great potential for understanding disease mechanisms and for development of new therapeutics in infectious diseases, autoimmunity and in immuno-oncology. However, this potential could be greatly improved by combining information about receptor clonotypes with immunophenotypes of T and B cells. To facilitate these studies, we developed a novel technology for combined profiling of all human TCR and BCR variable regions and phenotypic characterization of immune cells. The developed TCR/BCR immunophenotyping method involves multiplex RT-PCR amplification and sequencing of CDR3 regions of TCR and BCR genes and a set of the most informative T- and B-cell phenotyping genes. Bioinformatic analysis of NGS data allows profiling of TCR/BCR clonotypes, and identification of major immune cell subtypes and their activation status. Data will be presented showing how combined TCR/BCR clonotype analysis combined with targeted expression profiling of immune cells can be applied for large-scale discovery of novel cell typing and activation biomarkers in several immune-responsive model systems. Preliminary studies indicate the assay has unparalleled throughput, sensitivity, and improved cost-effectiveness for high-throughput immunity biomarker discovery applications.
Citation Format: Alex Chenchik, Mikhail Makhanov, Tianbing Liu, Lester Kobzik. Immunophenotyping of TCR and BCR clonotypes [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 625.
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Joffre J, Wong E, Lawton S, Lloyd E, Nguyen N, Xu F, Sempio C, Kobzik L, Zlatanova I, Schumacher M, Klawitter J, Su H, Rabl K, Wilhelmsen K, Yeh CC, Hellman J. N-Oleoyl dopamine induces IL-10 via central nervous system TRPV1 and improves endotoxemia and sepsis outcomes. J Neuroinflammation 2022; 19:118. [PMID: 35610647 PMCID: PMC9131699 DOI: 10.1186/s12974-022-02485-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 05/15/2022] [Indexed: 11/23/2022] Open
Abstract
Background The transient receptor potential vanilloid 1 (TRPV1) participates in thermosensation and inflammatory pain, but its immunomodulatory mechanisms remain enigmatic. N-Oleoyl dopamine (OLDA), an endovanilloid and endocannabinoid, is a TRPV1 agonist that is produced in the central nervous system and the peripheral nervous system. We studied the anti-inflammatory effects and TRPV1-dependent mechanisms of OLDA in models of inflammation and sepsis. Methods Mice were challenged intratracheally or intravenously with LPS, or intratracheally with S. aureus to induce pneumonia and sepsis, and then were treated intravenously with OLDA. Endpoints included plasma cytokines, leukocyte activation marker expression, mouse sepsis scores, lung histopathology, and bacterial counts. The role of TRPV1 in the effects of OLDA was determined using Trpv1−/− mice, and mice with TRPV1 knockdown pan-neuronally, in peripheral nervous system neurons, or in myeloid cells. Circulating monocytes/macrophages were depleted using clodronate to determine their role in the anti-inflammatory effects of OLDA in endotoxemic mice. Levels of exogenous OLDA, and of endovanilloids and endocannabinoids, at baseline and in endotoxemic mice, were determined by LC–MS/MS. Results OLDA administration caused an early anti-inflammatory response in endotoxemic and septic mice with high serum levels of IL-10 and decreased levels of pro-inflammatory cytokines. OLDA also reduced lung injury and improved mouse sepsis scores. Blood and lung bacterial counts were comparable between OLDA- and carrier-treated mice with S. aureus pneumonia. OLDA’s effects were reversed in mice with pan-neuronal TRPV1 knockdown, but not with TRPV1 knockdown in peripheral nervous system neurons or myeloid cells. Depletion of monocytes/macrophages reversed the IL-10 upregulation by OLDA in endotoxemic mice. Brain and blood levels of endovanilloids and endocannabinoids were increased in endotoxemic mice. Conclusions OLDA has strong anti-inflammatory actions in mice with endotoxemia or S. aureus pneumonia. Prior studies focused on the role of peripheral nervous system TRPV1 in modulating inflammation and pneumonia. Our results suggest that TRPV1-expressing central nervous system neurons also regulate inflammatory responses to endotoxemia and infection. Our study reveals a neuro-immune reflex that during acute inflammation is engaged proximally by OLDA acting on neuronal TRPV1, and through a multicellular network that requires circulating monocytes/macrophages, leads to the systemic production of IL-10. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-022-02485-z.
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Affiliation(s)
- Jérémie Joffre
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Erika Wong
- Pediatric Critical Care Division UCSF Benioff Children's Hospitals, San Francisco, CA, 94158, USA
| | - Samira Lawton
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Elliot Lloyd
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Nina Nguyen
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Fengyun Xu
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Cristina Sempio
- Institute of Cognitive Science, CU Boulder, iC42 Integrated Solutions in Systems Biology, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Lester Kobzik
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA, 02115, USA
| | - Ivana Zlatanova
- Cardiovascular Research Institute, UCSF School of Medicine, San Francisco, CA, 94158, USA
| | - Mark Schumacher
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA.,Division of Pain Medicine, UCSF School of Medicine, San Francisco, CA, 94143, USA
| | - Jost Klawitter
- Institute of Cognitive Science, CU Boulder, iC42 Integrated Solutions in Systems Biology, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Hua Su
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Katalin Rabl
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Kevin Wilhelmsen
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Che-Chung Yeh
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA
| | - Judith Hellman
- Department of Anesthesia and Perioperative Care, UCSF School of Medicine, 500 Parnassus Ave, Box 0648, San Francisco, CA, 94143, USA.
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6
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Chenchik A, Makhanov M, Darst R, Liu T, Kobzik L. 69 Immunophenotyping of TCR and BCR clonotypes. J Immunother Cancer 2021. [DOI: 10.1136/jitc-2021-sitc2021.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BackgroundT-cell receptor (TCR) and B-cell receptor (BCR) repertoire profiling holds great potential for understanding disease mechanisms and for the development of new therapeutics in infectious diseases, autoimmunity and in immuno-oncology. However, this potential could be greatly improved by combining information about receptor clonotypes with immuno-phenotypes of T and B cells.MethodsTo facilitate these studies, we developed a novel technology for combined profiling of all human TCR and BCR variable regions and phenotypic characterization of immune cells in bulk and at the single-cell level in PBMC and immune cell fraction samples. The developed TCR/BCR Immunophenotyping method involves multiplex RT-PCR amplification and sequencing of CDR3 regions of TCR and BCR genes and a set of the most informative T- and B-cell phenotyping genes. Bioinformatics analysis of NGS data allows profiling of TCR/BCR clonotypes, and identification of major immune cell subtypes and their activation status.ResultsData will be presented showing how combined TCR/BCR clonotype analysis combined with targeted expression profiling of immune cells can be applied for large-scale discovery of novel cell typing and activation biomarkers in several immune-responsive model systems.ConclusionsPreliminary studies demonstrate the assay has unparalleled throughput, sensitivity, and improved cost-effectiveness for high-throughput immunity biomarker discovery applications.
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7
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Chatterjee S, Yabaji SM, Rukhlenko OS, Bhattacharya B, Waligurski E, Vallavoju N, Ray S, Kholodenko BN, Brown LE, Beeler AB, Ivanov AR, Kobzik L, Porco JA, Kramnik I. Channeling macrophage polarization by rocaglates increases macrophage resistance to Mycobacterium tuberculosis. iScience 2021; 24:102845. [PMID: 34381970 PMCID: PMC8333345 DOI: 10.1016/j.isci.2021.102845] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/22/2021] [Accepted: 07/09/2021] [Indexed: 12/12/2022] Open
Abstract
Macrophages contribute to host immunity and tissue homeostasis via alternative activation programs. M1-like macrophages control intracellular bacterial pathogens and tumor progression. In contrast, M2-like macrophages shape reparative microenvironments that can be conducive for pathogen survival or tumor growth. An imbalance of these macrophages phenotypes may perpetuate sites of chronic unresolved inflammation, such as infectious granulomas and solid tumors. We have found that plant-derived and synthetic rocaglates sensitize macrophages to low concentrations of the M1-inducing cytokine IFN-gamma and inhibit their responsiveness to IL-4, a prototypical activator of the M2-like phenotype. Treatment of primary macrophages with rocaglates enhanced phagosome-lysosome fusion and control of intracellular mycobacteria. Thus, rocaglates represent a novel class of immunomodulators that can direct macrophage polarization toward the M1-like phenotype in complex microenvironments associated with hypofunction of type 1 and/or hyperactivation of type 2 immunity, e.g., chronic bacterial infections, allergies, and, possibly, certain tumors.
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Affiliation(s)
- Sujoy Chatterjee
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
| | - Shivraj M. Yabaji
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
| | - Oleksii S. Rukhlenko
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
| | - Bidisha Bhattacharya
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
| | - Emily Waligurski
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
| | - Nandini Vallavoju
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Somak Ray
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA
| | - Boris N. Kholodenko
- Systems Biology Ireland, School of Medicine, University College Dublin, Dublin 4, Ireland
- Department of Pharmacology, Yale University School of Medicine, New Haven, USA
| | - Lauren E. Brown
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Aaron B. Beeler
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Alexander R. Ivanov
- Barnett Institute of Chemical and Biological Analysis, Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard School of Public Health, Boston, MA 02115, USA
| | - John A. Porco
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA 02215, USA
| | - Igor Kramnik
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA 02118, USA
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8
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Inde Z, Croker BA, Yapp C, Joshi GN, Spetz J, Fraser C, Qin X, Xu L, Deskin B, Ghelfi E, Webb G, Carlin AF, Zhu YP, Leibel SL, Garretson AF, Clark AE, Duran JM, Pretorius V, Crotty-Alexander LE, Li C, Lee JC, Sodhi C, Hackam DJ, Sun X, Hata AN, Kobzik L, Miller J, Park JA, Brownfield D, Jia H, Sarosiek KA. Age-dependent regulation of SARS-CoV-2 cell entry genes and cell death programs correlates with COVID-19 severity. Sci Adv 2021; 7:eabf8609. [PMID: 34407940 PMCID: PMC8373124 DOI: 10.1126/sciadv.abf8609] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 06/25/2021] [Indexed: 05/02/2023]
Abstract
Novel coronavirus disease 2019 (COVID-19) severity is highly variable, with pediatric patients typically experiencing less severe infection than adults and especially the elderly. The basis for this difference is unclear. We find that mRNA and protein expression of angiotensin-converting enzyme 2 (ACE2), the cell entry receptor for the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes COVID-19, increases with advancing age in distal lung epithelial cells. However, in humans, ACE2 expression exhibits high levels of intra- and interindividual heterogeneity. Further, cells infected with SARS-CoV-2 experience endoplasmic reticulum stress, triggering an unfolded protein response and caspase-mediated apoptosis, a natural host defense system that halts virion production. Apoptosis of infected cells can be selectively induced by treatment with apoptosis-modulating BH3 mimetic drugs. Notably, epithelial cells within young lungs and airways are more primed to undergo apoptosis than those in adults, which may naturally hinder virion production and support milder COVID-19 severity.
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Affiliation(s)
- Zintis Inde
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Ben A Croker
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Clarence Yapp
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
- Image and Data Analysis Core, Harvard Medical School, Boston, MA, USA
| | - Gaurav N Joshi
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
- Integrated Cellular Imaging Core, Emory University, Atlanta, GA, USA
| | - Johan Spetz
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Cameron Fraser
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Xingping Qin
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
| | - Le Xu
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Brian Deskin
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Elisa Ghelfi
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Gabrielle Webb
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Aaron F Carlin
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Yanfang Peipei Zhu
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Sandra L Leibel
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Aaron F Garretson
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Alex E Clark
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Jason M Duran
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Victor Pretorius
- Department of Surgery, University of California San Diego, La Jolla, CA, USA
| | | | - Chendi Li
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Jamie Casey Lee
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Chhinder Sodhi
- Department of Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - David J Hackam
- Department of Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - Xin Sun
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Aaron N Hata
- Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Lester Kobzik
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jeffrey Miller
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jin-Ah Park
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Douglas Brownfield
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Hongpeng Jia
- Department of Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - Kristopher A Sarosiek
- Molecular and Integrative Physiological Sciences Program, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA, USA
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9
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Bhattacharya B, Xiao S, Chatterjee S, Urbanowski M, Ordonez A, Ihms EA, Agrahari G, Lun S, Berland R, Pichugin A, Gao Y, Connor J, Ivanov AR, Yan BS, Kobzik L, Koo BB, Jain S, Bishai W, Kramnik I. The integrated stress response mediates necrosis in murine Mycobacterium tuberculosis granulomas. J Clin Invest 2021; 131:130319. [PMID: 33301427 PMCID: PMC7843230 DOI: 10.1172/jci130319] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 12/04/2020] [Indexed: 12/27/2022] Open
Abstract
The mechanism by which only some individuals infected with Mycobacterium tuberculosis develop necrotic granulomas with progressive disease while others form controlled granulomas that contain the infection remains poorly defined. Mice carrying the sst1-suscepible (sst1S) genotype develop necrotic inflammatory lung lesions, similar to human tuberculosis (TB) granulomas, which are linked to macrophage dysfunction, while their congenic counterpart (B6) mice do not. In this study we report that (a) sst1S macrophages developed aberrant, biphasic responses to TNF characterized by superinduction of stress and type I interferon pathways after prolonged TNF stimulation; (b) the late-stage TNF response was driven via a JNK/IFN-β/protein kinase R (PKR) circuit; and (c) induced the integrated stress response (ISR) via PKR-mediated eIF2α phosphorylation and the subsequent hyperinduction of ATF3 and ISR-target genes Chac1, Trib3, and Ddit4. The administration of ISRIB, a small-molecule inhibitor of the ISR, blocked the development of necrosis in lung granulomas of M. tuberculosis-infected sst1S mice and concomitantly reduced the bacterial burden. Hence, induction of the ISR and the locked-in state of escalating stress driven by the type I IFN pathway in sst1S macrophages play a causal role in the development of necrosis in TB granulomas. Interruption of the aberrant stress response with inhibitors such as ISRIB may offer novel host-directed therapy strategies.
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Affiliation(s)
- Bidisha Bhattacharya
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Shiqi Xiao
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sujoy Chatterjee
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Michael Urbanowski
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Alvaro Ordonez
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Elizabeth A. Ihms
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Garima Agrahari
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Shichun Lun
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Robert Berland
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Alexander Pichugin
- Department of Cellular Immunology, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Yuanwei Gao
- Department of Pharmacokinetics, Pharmacodynamics & Drug Metabolism (PPDM), Merck, West Point, Pennsylvania, USA
| | - John Connor
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Alexander R. Ivanov
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts, USA
| | - Bo-Shiun Yan
- Institute of Biochemistry and Molecular Biology, National Taiwan University Medical College, Zhongzheng District, Taipei City, Taiwan
| | - Lester Kobzik
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Bang-Bon Koo
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Sanjay Jain
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - William Bishai
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Igor Kramnik
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
- Department of Medicine, Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, USA
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10
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Inde Z, Yapp C, Joshi GN, Spetz J, Fraser C, Deskin B, Ghelfi E, Sodhi C, Hackam DJ, Kobzik L, Croker BA, Brownfield D, Jia H, Sarosiek KA. Age-dependent regulation of SARS-CoV-2 cell entry genes and cell death programs correlates with COVID-19 disease severity. bioRxiv 2020:2020.09.13.276923. [PMID: 32935109 PMCID: PMC7491524 DOI: 10.1101/2020.09.13.276923] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Angiotensin-converting enzyme 2 (ACE2) maintains cardiovascular and renal homeostasis but also serves as the entry receptor for the novel severe acute respiratory syndrome coronavirus (SARS-CoV-2), the causal agent of novel coronavirus disease 2019 (COVID-19). COVID-19 disease severity is typically lower in pediatric patients than adults (particularly the elderly), but higher rates of hospitalizations requiring intensive care are observed in infants than in older children - the reasons for these differences are unknown. ACE2 is expressed in several adult tissues and cells, including alveolar type 2 cells of the distal lung epithelium, but expression at other ages is largely unexplored. Here we show that ACE2 transcripts are expressed in the lung and trachea shortly after birth, downregulated during childhood, and again expressed at high levels in late adulthood. Notably, the repertoire of cells expressing ACE2 protein in the mouse lung and airways shifts during key phases of lung maturation. In particular, podoplanin-positive cells, which are likely alveolar type I cells responsible for gas exchange, express ACE2 only in advanced age. Similar patterns of expression were evident in analysis of human lung tissue from over 100 donors, along with extreme inter- and intra-individual heterogeneity in ACE2 protein expression in epithelial cells. Furthermore, we find that apoptosis, which is a natural host defense system against viral infection, is dynamically regulated during lung maturation, resulting in periods of heightened apoptotic priming and dependence on pro-survival BCL-2 family proteins including MCL-1. Infection of human lung cells with SARS-CoV-2 triggers an unfolded protein stress response and upregulation of the endogenous MCL-1 inhibitor Noxa; in young individuals, MCL-1 inhibition is sufficient to trigger apoptosis in lung epithelial cells and may thus limit virion production and inflammatory signaling. Overall, we identify strong and distinct correlates of COVID-19 disease severity across lifespan and advance our understanding of the regulation of ACE2 and cell death programs in the mammalian lung. Furthermore, our work provides the framework for translation of apoptosis modulating drugs as novel treatments for COVID-19.
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Affiliation(s)
- Zintis Inde
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
- John B. Little Center for Radiation Sciences, Harvard School of Public Health, Boston, MA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA
| | - Clarence Yapp
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA
- Image and Data Analysis Core, Harvard Medical School, Boston, MA
| | - Gaurav N. Joshi
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
- John B. Little Center for Radiation Sciences, Harvard School of Public Health, Boston, MA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA
- Integrated Cellular Imaging Core, Emory University, Atlanta, GA
| | - Johan Spetz
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
- John B. Little Center for Radiation Sciences, Harvard School of Public Health, Boston, MA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA
| | - Cameron Fraser
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
- John B. Little Center for Radiation Sciences, Harvard School of Public Health, Boston, MA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA
| | - Brian Deskin
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
| | - Elisa Ghelfi
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
| | - Chhinder Sodhi
- Department of Surgery, Johns Hopkins University, Baltimore, MD
| | - David J. Hackam
- Department of Surgery, Johns Hopkins University, Baltimore, MD
| | - Lester Kobzik
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
| | - Ben A. Croker
- Division of Allergy, Immunology and Rheumatology, University of California, San Diego, CA
| | - Douglas Brownfield
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
| | - Hongpeng Jia
- Department of Surgery, Johns Hopkins University, Baltimore, MD
| | - Kristopher A. Sarosiek
- Molecular and Integrative Physiological Sciences Program, Harvard School of Public Health, Boston, MA
- John B. Little Center for Radiation Sciences, Harvard School of Public Health, Boston, MA
- Harvard Program in Therapeutic Science, Harvard Medical School, Boston, MA
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11
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Chenchik A, Makhanov M, Darst R, Deng D, Tedesco D, Diehl P, Kobzik L. Abstract 5868: Cell barcoding, genetic screens and expression profiling at a single-cell level. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Novel single-cell methods for profiling clonal composition and phenotypes of genetically modified cancer cells may improve understanding of tumorigenesis and guide the development of new anti-cancer drugs. To facilitate these studies, we developed a panel of lentiviral barcoded sgRNA libraries to label and monitor cancer cells in time-course experiments in vitro and in mouse xenograft models. The sgRNA effectors and cellular barcodes are transcribed from lentiviral constructs and can be detected by NGS in a single-cell RNA expression profiling assay, allowing characterization of the subpopulation of cells descended from a single, barcoded knockout progenitor cell. To scale up genetic analysis, cell barcodes were incorporated in conjunction with sgRNA effector libraries to identify clonal phenotypic changes induced by specific genetic disruptions in progeny cells derived from a single progenitor cell. However, effective single-cell genetic screening designed for even only a few hundred genes requires expression profiling of one hundred thousand cells (or more) and is not practical using currently available instrumentation. Data will be presented showing how genetic screen technology combined with targeted RNA expression profiling of barcoded knockout cells can be applied for large-scale genetic screens and significantly improve phenotyping of distinct cell populations in several cancer model systems. Preliminary studies demonstrate the assay to have unparalleled throughput, sensitivity, and improved cost-effectiveness for high-throughput drug target discovery applications.
Citation Format: Alex Chenchik, Mikhail Makhanov, Russell Darst, Debbie Deng, Donato Tedesco, Paul Diehl, Lester Kobzik. Cell barcoding, genetic screens and expression profiling at a single-cell level [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5868.
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12
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Gregory DJ, DeLoid GM, Salmon SL, Metzger DW, Kramnik I, Kobzik L. SON DNA-binding protein mediates macrophage autophagy and responses to intracellular infection. FEBS Lett 2020; 594:2782-2799. [PMID: 32484234 DOI: 10.1002/1873-3468.13851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/11/2020] [Indexed: 12/09/2022]
Abstract
Intracellular pathogens affect diverse host cellular defence and metabolic pathways. Here, we used infection with Francisella tularensis to identify SON DNA-binding protein as a central determinant of macrophage activities. RNAi knockdown of SON increases survival of human macrophages following F. tularensis infection or inflammasome stimulation. SON is required for macrophage autophagy, interferon response factor 3 expression, type I interferon response and inflammasome-associated readouts. SON knockdown has gene- and stimulus-specific effects on inflammatory gene expression. SON is required for accurate splicing and expression of GBF1, a key mediator of cis-Golgi structure and function. Chemical GBF1 inhibition has similar effects to SON knockdown, suggesting that SON controls macrophage functions at least in part by controlling Golgi-associated processes.
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Affiliation(s)
- David J Gregory
- Molecular and Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Pediatric Infectious Disease, Massachusetts General Hospital, Boston, MA, USA
| | - Glen M DeLoid
- Molecular and Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Sharon L Salmon
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY, USA
| | - Dennis W Metzger
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY, USA
| | - Igor Kramnik
- Pulmonary Center, Department of Medicine, National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, MA, USA
| | - Lester Kobzik
- Molecular and Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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13
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Joffre J, Yeh CC, Wong E, Thete M, Xu F, Zlatanova I, Lloyd E, Kobzik L, Legrand M, Hellman J. Activation of CB 1R Promotes Lipopolysaccharide-Induced IL-10 Secretion by Monocytic Myeloid-Derived Suppressive Cells and Reduces Acute Inflammation and Organ Injury. J Immunol 2020; 204:3339-3350. [PMID: 32385136 DOI: 10.4049/jimmunol.2000213] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022]
Abstract
Cannabis sativa and its principal components, Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol, are increasingly being used to treat a variety of medical problems, including inflammatory conditions. Although studies suggest that the endocannabinoid system has immunomodulatory properties, there remains a paucity of information on the effects of cannabinoids on immunity and on outcomes of infection and injury. We investigated the effects and mechanism(s) of action of cannabinoid receptor agonists, including Δ9-THC, on inflammation and organ injury in endotoxemic mice. Administration of Δ9-THC caused a dramatic early upregulation of plasma IL-10 levels, reduced plasma IL-6 and CCL-2 levels, led to better clinical status, and attenuated organ injury in endotoxemic mice. The anti-inflammatory effects of Δ9-THC in endotoxemic mice were reversed by a cannabinoid receptor type 1 (CB1R) inverse agonist (SR141716), and by clodronate-induced myeloid-cell depletion, but not by genetic invalidation or blockade of other putative Δ9-THC receptors, including cannabinoid receptor type 2, TRPV1, GPR18, GPR55, and GPR119. Although Δ9-THC administration reduced the activation of several spleen immune cell subsets, the anti-inflammatory effects of Δ9-THC were preserved in splenectomized endotoxemic mice. Finally, using IL-10-GFP reporter mice, we showed that blood monocytic myeloid-derived suppressive cells mediate the Δ9-THC-induced early rise in circulating IL-10. These results indicate that Δ9-THC potently induces IL-10, while reducing proinflammatory cytokines, chemokines, and related organ injury in endotoxemic mice via the activation of CB1R. These data have implications for acute and chronic conditions that are driven by dysregulated inflammation, such as sepsis, and raise the possibility that CB1R-signaling may constitute a novel target for inflammatory disorders.
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Affiliation(s)
- Jérémie Joffre
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Che-Chung Yeh
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Erika Wong
- Pediatric Critical Care Division, UCSF Benioff Children's Hospital, San Francisco, CA 94158
| | - Mayuri Thete
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Fengyun Xu
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Ivana Zlatanova
- Cardiovascular Research Institute, University of California, San Francisco School of Medicine, San Francisco, CA 94158; and
| | - Elliot Lloyd
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Lester Kobzik
- Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115
| | - Matthieu Legrand
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143
| | - Judith Hellman
- Department of Anesthesia and Perioperative Care, University of California, San Francisco School of Medicine, San Francisco, CA 94143;
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14
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Yang Z, Bedugnis A, Levinson S, DiNubile M, Stossel T, Lu Q, Kobzik L. Delayed administration of recombinant plasma gelsolin improves survival in a murine model of severe influenza. F1000Res 2019; 8:1860. [PMID: 31824672 PMCID: PMC6894358 DOI: 10.12688/f1000research.21082.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/29/2019] [Indexed: 11/20/2022] Open
Abstract
Background: Host-derived inflammatory responses contribute to the morbidity and mortality of severe influenza, suggesting that immunomodulatory therapy may improve outcomes. The normally circulating protein, human plasma gelsolin, is available in recombinant form (rhu-pGSN) and has beneficial effects in a variety of pre-clinical models of inflammation and injury. Methods: We evaluated delayed therapy with subcutaneous rhu-pGSN initiated 3 to 6 days after intra-nasal viral challenge in a mouse model of influenza A/PR/8/34. Results: Rhu-pGSN administered starting on day 3 or day 6 increased survival (12-day survival: 62 % vs 39 %, pGSN vs vehicle; p < 0.00001, summary of 18 trials), reduced morbidity, and decreased pro-inflammatory gene expression. Conclusions: Rhu-pGSN improves outcomes in a highly lethal influenza model when given after a clinically relevant delay.
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Affiliation(s)
- Zhiping Yang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Alice Bedugnis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | | | - Mark DiNubile
- BioAegis Therapeutics, North Brunswick, NJ, 07960, USA
| | | | - Quan Lu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
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15
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Yang Z, Bedugnis A, Levinson S, DiNubile M, Stossel T, Lu Q, Kobzik L. Delayed administration of recombinant plasma gelsolin improves survival in a murine model of severe influenza. F1000Res 2019; 8:1860. [PMID: 31824672 PMCID: PMC6894358 DOI: 10.12688/f1000research.21082.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/19/2020] [Indexed: 12/16/2022] Open
Abstract
Background: Host-derived inflammatory responses contribute to the morbidity and mortality of severe influenza, suggesting that immunomodulatory therapy may improve outcomes. The normally circulating protein, human plasma gelsolin, is available in recombinant form (rhu-pGSN) and has beneficial effects in a variety of pre-clinical models of inflammation and injury. Methods: We evaluated delayed therapy with subcutaneous rhu-pGSN initiated 3 to 6 days after intra-nasal viral challenge in a mouse model of influenza A/PR/8/34. Results: Rhu-pGSN administered starting on day 3 or day 6 increased survival (12-day survival: 62 % vs 39 %, pGSN vs vehicle; p < 0.00001, summary of 18 trials), reduced morbidity, and decreased pro-inflammatory gene expression. Conclusions: Rhu-pGSN improves outcomes in a highly lethal influenza model when given after a clinically relevant delay.
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Affiliation(s)
- Zhiping Yang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Alice Bedugnis
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | | | - Mark DiNubile
- BioAegis Therapeutics, North Brunswick, NJ, 07960, USA
| | | | - Quan Lu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
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16
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Yang Z, Bedugnis A, Levinson S, Dinubile M, Stossel T, Lu Q, Kobzik L. Delayed Administration of Recombinant Plasma Gelsolin Improves Survival in a Murine Model of Penicillin-Susceptible and Penicillin-Resistant Pneumococcal Pneumonia. J Infect Dis 2019; 220:1498-1502. [PMID: 31287867 PMCID: PMC6761947 DOI: 10.1093/infdis/jiz353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 07/08/2019] [Indexed: 11/14/2022] Open
Abstract
Therapy to enhance host immune defenses may improve outcomes in serious infections, especially for antibiotic-resistant pathogens. Recombinant human plasma gelsolin (rhu-pGSN), a normally circulating protein, has beneficial effects in diverse preclinical models of inflammation and injury. We evaluated delayed therapy (24-48 hours after challenge) with rhu-pGSN in a mouse model of pneumococcal pneumonia. rhu-pGSN without antibiotics increased survival and reduced morbidity and weight loss after infection with either penicillin-susceptible or penicillin-resistant pneumococci (serotypes 3 and 14, respectively). rhu-pGSN improves outcomes in a highly lethal pneumococcal pneumonia model when given after a clinically relevant delay, even in the setting of antimicrobial resistance.
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Affiliation(s)
- Zhiping Yang
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Alice Bedugnis
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | | | | | | | - Quan Lu
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Lester Kobzik
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
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17
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Dela Cruz CS, Wunderink RG, Christiani DC, Cormier SA, Crothers K, Doerschuk CM, Evans SE, Goldstein DR, Khatri P, Kobzik L, Kolls JK, Levy BD, Metersky ML, Niederman MS, Nusrat R, Orihuela CJ, Peyrani P, Prince AS, Ramírez JA, Ridge KM, Sethi S, Suratt BT, Sznajder JI, Tsalik EL, Walkey AJ, Yende S, Aggarwal NR, Caler EV, Mizgerd JP. Future Research Directions in Pneumonia. NHLBI Working Group Report. Am J Respir Crit Care Med 2019; 198:256-263. [PMID: 29546996 DOI: 10.1164/rccm.201801-0139ws] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Pneumonia is a complex pulmonary disease in need of new clinical approaches. Although triggered by a pathogen, pneumonia often results from dysregulations of host defense that likely precede infection. The coordinated activities of immune resistance and tissue resilience then dictate whether and how pneumonia progresses or resolves. Inadequate or inappropriate host responses lead to more severe outcomes such as acute respiratory distress syndrome and to organ dysfunction beyond the lungs and over extended time frames after pathogen clearance, some of which increase the risk for subsequent pneumonia. Improved understanding of such host responses will guide the development of novel approaches for preventing and curing pneumonia and for mitigating the subsequent pulmonary and extrapulmonary complications of pneumonia. The NHLBI assembled a working group of extramural investigators to prioritize avenues of host-directed pneumonia research that should yield novel approaches for interrupting the cycle of unhealthy decline caused by pneumonia. This report summarizes the working group's specific recommendations in the areas of pneumonia susceptibility, host response, and consequences. Overarching goals include the development of more host-focused clinical approaches for preventing and treating pneumonia, the generation of predictive tools (for pneumonia occurrence, severity, and outcome), and the elucidation of mechanisms mediating immune resistance and tissue resilience in the lung. Specific areas of research are highlighted as especially promising for making advances against pneumonia.
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Affiliation(s)
- Charles S Dela Cruz
- 1 Pulmonary, Critical Care and Sleep Medicine, Center for Pulmonary Infection Research and Treatment, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Richard G Wunderink
- 2 Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - David C Christiani
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, and.,4 Pulmonary and Critical Care Division, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts
| | - Stephania A Cormier
- 5 Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana
| | - Kristina Crothers
- 6 Department of Medicine, University of Washington, Seattle, Washington
| | - Claire M Doerschuk
- 7 Marsico Lung Institute and.,8 Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Scott E Evans
- 9 Department of Pulmonary Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Daniel R Goldstein
- 10 Department of Internal Medicine.,11 Department of Microbiology and Immunology, and.,12 Institute of Gerontology, University of Michigan, Ann Arbor, Michigan
| | - Purvesh Khatri
- 13 Center for Biomedical Information Research, Stanford University, Stanford, California
| | - Lester Kobzik
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, and
| | - Jay K Kolls
- 14 Center for Translational Research in Infection and Inflammation, Tulane School of Medicine, New Orleans, Louisiana
| | - Bruce D Levy
- 15 Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Mark L Metersky
- 16 Division of Pulmonary, Critical Care and Sleep Medicine, University of Connecticut School of Medicine, Farmington, Connecticut
| | - Michael S Niederman
- 17 Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York
| | - Roomi Nusrat
- 18 Department of Medicine, Rutgers Robert Wood Johnson School of Medicine, New Brunswick, New Jersey
| | - Carlos J Orihuela
- 19 Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Paula Peyrani
- 20 Division of Infectious Diseases, Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Alice S Prince
- 21 Department of Pediatrics, Columbia University, New York, New York
| | - Julio A Ramírez
- 20 Division of Infectious Diseases, Department of Medicine, University of Louisville, Louisville, Kentucky
| | - Karen M Ridge
- 2 Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Sanjay Sethi
- 22 Pulmonary, Critical Care and Sleep Medicine, Jacobs School of Medicine, University at Buffalo, State University of New York, Buffalo, New York
| | - Benjamin T Suratt
- 23 Pulmonary and Critical Care Medicine, University of Vermont College of Medicine, Burlington, Vermont
| | - Jacob I Sznajder
- 2 Pulmonary and Critical Care, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Ephraim L Tsalik
- 24 Emergency Medicine Service, Durham Veterans Affairs Health Care System, Durham, North Carolina.,25 Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Allan J Walkey
- 26 Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
| | - Sachin Yende
- 27 Department of Critical Care Medicine, Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, University of Pittsburgh, Pittsburgh, Pennsylvania.,28 Center for Health Equity Research and Promotion, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania; and
| | - Neil R Aggarwal
- 29 Division of Lung Diseases, NHLBI, NIH, Bethesda, Maryland
| | | | - Joseph P Mizgerd
- 26 Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
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18
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Vaze N, Pyrgiotakis G, McDevitt J, Mena L, Melo A, Bedugnis A, Kobzik L, Eleftheriadou M, Demokritou P. Inactivation of common hospital acquired pathogens on surfaces and in air utilizing engineered water nanostructures (EWNS) based nano-sanitizers. Nanomedicine 2019; 18:234-242. [PMID: 30904585 PMCID: PMC6588479 DOI: 10.1016/j.nano.2019.03.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 02/15/2019] [Accepted: 03/06/2019] [Indexed: 01/22/2023]
Abstract
Infectious diseases represent a major public health challenge worldwide. There are various modes for the transmission of these diseases, with surface and airborne transmission being two of the most important ones. The inefficiencies of current intervention methods have resulted in the emergence of nosocomial infections. Here, we report the use of a nanotechnology based antimicrobial platform using Engineered Water Nanostructures (EWNS) generated using a combined electrospray and ionization of an aqueous suspension of various active ingredients (AIs). These EWNS based nano-sanitizers were tested in terms of their ability to efficiently deliver AI and inactivate Acinetobacter baumannii and influenza H1N1/PR/8 on both surfaces and air. Results indicate a significant reduction in the concertation of the pathogens, while the delivered to pathogen AI doses required for inactivation were miniscule (nanogram level), indicating the viability of such nano-carrier platform as an intervention technology against infectious microorganisms.
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Affiliation(s)
- Nachiket Vaze
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Georgios Pyrgiotakis
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - James McDevitt
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Lucas Mena
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Adler Melo
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Alice Bedugnis
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Lester Kobzik
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Mary Eleftheriadou
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA; School of Sciences, European University Cyprus, Nicosia, Cyprus
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard, T. H. Chan School of Public Health, Harvard University, Boston, MA, USA.
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19
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Liang X, Gupta K, Quintero JR, Cernadas M, Kobzik L, Christou H, Pier GB, Owen CA, Çataltepe S. Macrophage FABP4 is required for neutrophil recruitment and bacterial clearance in Pseudomonas aeruginosa pneumonia. FASEB J 2019; 33:3562-3574. [PMID: 30462529 PMCID: PMC6988858 DOI: 10.1096/fj.201802002r] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 10/15/2018] [Indexed: 01/29/2023]
Abstract
Fatty acid binding protein 4 (FABP4), an intracellular lipid chaperone and adipokine, is expressed by lung macrophages, but the function of macrophage-FABP4 remains elusive. We investigated the role of FABP4 in host defense in a murine model of Pseudomonas aeruginosa pneumonia. Compared with wild-type (WT) mice, FABP4-deficient (FABP4-/-) mice exhibited decreased bacterial clearance and increased mortality when challenged intranasally with P. aeruginosa. These findings in FABP4-/- mice were associated with a delayed neutrophil recruitment into the lungs and were followed by greater acute lung injury and inflammation. Among leukocytes, only macrophages expressed FABP4 in WT mice with P. aeruginosa pneumonia. Chimeric FABP4-/- mice with WT bone marrow were protected from increased mortality seen in chimeric WT mice with FABP4-/- bone marrow during P. aeruginosa pneumonia, thus confirming the role of macrophages as the main source of protective FABP4 against that infection. There was less production of C-X-C motif chemokine ligand 1 (CXCL1) in FABP4-/- alveolar macrophages and lower airway CXCL1 levels in FABP4-/- mice. Delivering recombinant CXCL1 to the airways protected FABP4-/- mice from increased susceptibility to P. aeruginosa pneumonia. Thus, macrophage-FABP4 has a novel role in pulmonary host defense against P. aeruginosa infection by facilitating crosstalk between macrophages and neutrophils via regulation of macrophage CXCL1 production.-Liang, X., Gupta, K., Rojas Quintero, J., Cernadas, M., Kobzik, L., Christou, H., Pier, G. B., Owen, C. A., Çataltepe, S. Macrophage FABP4 is required for neutrophil recruitment and bacterial clearance in Pseudomonas aeruginosa pneumonia.
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Affiliation(s)
- Xiaoliang Liang
- Department of Pediatric Newborn Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Kushagra Gupta
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Joselyn Rojas Quintero
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Manuela Cernadas
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Helen Christou
- Department of Pediatric Newborn Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gerald B. Pier
- Division of Infectious Diseases, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA; and
| | - Caroline A. Owen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
- The Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Sule Çataltepe
- Department of Pediatric Newborn Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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20
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Meyer KF, Verkaik-Schakel RN, Timens W, Kobzik L, Plösch T, Hylkema MN. The fetal programming effect of prenatal smoking on Igf1r and Igf1 methylation is organ- and sex-specific. Epigenetics 2018; 12:1076-1091. [PMID: 29160127 PMCID: PMC5810788 DOI: 10.1080/15592294.2017.1403691] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The impact of prenatal smoke exposure (PSE) on DNA methylation has been demonstrated in blood samples from children of smoking mothers, but evidence for sex-dependent smoke-induced effects is limited. As the identified differentially methylated genes can be associated with developmental processes, and insulin-like growth factors (IGFs) play a critical role in prenatal tissue growth, we hypothesized that PSE induces fetal programming of Igf1r and Igf1. Using a mouse model of smoking during pregnancy, we show that PSE alters promoter methylation of Igf1r and Igf1 and deregulates their gene expression in lung and liver of fetal (E17.5) and neonatal (D3) mouse offspring. By further comparing female versus male, lung versus liver, or fetal versus neonatal time point, our results demonstrate that CpG site-specific aberrant methylation patterns sex-dependently vary per organ and time point. Moreover, PSE reduces gene expression of Igf1r and Igf1, dependent on organ, sex, and offspring's age. Our results indicate that PSE may be a source of organ-specific rather than general systemic fetal programming. This is exemplified here by gene promoter methylation and mRNA levels of Igf1r and Igf1, together with a sex- and organ-specific naturally established correlation of both parameters that is affected by prenatal smoke exposure. Moreover, the comparison of fetuses with neonates suggests a CpG site-dependent reversibility/persistence of PSE-induced differential methylation patterns.
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Affiliation(s)
- Karolin F Meyer
- a Department of Pathology and Medical Biology , University of Groningen, University Medical Center Groningen , Hanzeplein 1, EA10, 9713 GZ , Groningen , The Netherlands.,b University of Groningen , University Medical Center Groningen , GRIAC Research Institute , Hanzeplein 1, EA10, 9713 GZ , Groningen , The Netherlands
| | - Rikst Nynke Verkaik-Schakel
- c Department of Obstetrics and Gynaecology , University of Groningen , University Medical Center Groningen , Hanzeplein 1, 9713 GZ , Groningen , The Netherlands
| | - Wim Timens
- a Department of Pathology and Medical Biology , University of Groningen, University Medical Center Groningen , Hanzeplein 1, EA10, 9713 GZ , Groningen , The Netherlands.,b University of Groningen , University Medical Center Groningen , GRIAC Research Institute , Hanzeplein 1, EA10, 9713 GZ , Groningen , The Netherlands
| | - Lester Kobzik
- d Molecular and Integrative Physiological Sciences Program, Department of Environmental Health , Harvard T. H. Chan School of Public Health , Building II Room 221, 655 Huntington Avenue, Boston , MA 02115 , USA
| | - Torsten Plösch
- c Department of Obstetrics and Gynaecology , University of Groningen , University Medical Center Groningen , Hanzeplein 1, 9713 GZ , Groningen , The Netherlands
| | - Machteld N Hylkema
- a Department of Pathology and Medical Biology , University of Groningen, University Medical Center Groningen , Hanzeplein 1, EA10, 9713 GZ , Groningen , The Netherlands.,b University of Groningen , University Medical Center Groningen , GRIAC Research Institute , Hanzeplein 1, EA10, 9713 GZ , Groningen , The Netherlands
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21
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Affiliation(s)
- Rose B Joachim
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
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22
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Shen H, Yang N, Truskinovsky A, Chen Y, Mussell AL, Nowak NJ, Kobzik L, Frangou C, Zhang J. Targeting TAZ-Driven Human Breast Cancer by Inhibiting a SKP2-p27 Signaling Axis. Mol Cancer Res 2018; 17:250-262. [PMID: 30237296 DOI: 10.1158/1541-7786.mcr-18-0332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/05/2018] [Accepted: 08/31/2018] [Indexed: 12/21/2022]
Abstract
Deregulated expression of the transcriptional coactivator with PDZ-binding motif (WWTR1/TAZ) is a common feature of basal-like breast cancer (BLBC). Yet, how oncogenic TAZ regulates cell-cycle progression and proliferation in breast cancer remains poorly understood, and whether TAZ is required for tumor maintenance has not been established. Here, using an integrative oncogenomic approach, TAZ-dependent cellular programs essential for tumor growth and progression were identified. Significantly, TAZ-driven tumor cells required sustained TAZ expression, given that its withdrawal impaired both genesis and maintenance of solid tumors. Moreover, temporal inhibition of TAZ diminished the metastatic burden in established macroscopic pulmonary metastases. Mechanistic investigation revealed that TAZ controls distinct gene profiles that determine cancer cell fate through cell-cycle networks, including a specific, causal role for S-phase kinase-associated protein 2 (SKP2) in mediating the neoplastic state. Together, this study elucidates the molecular events that underpin the role of TAZ in BLBC and link to SKP2, a convergent communication node for multiple cancer signaling pathways, as a key downstream effector molecule. IMPLICATIONS: Understanding the molecular role of TAZ and its link to SKP2, a signaling convergent point and key regulator in BLBC, represents an important step toward the identification of novel therapeutic targets for TAZ-dependent breast cancer.
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Affiliation(s)
- He Shen
- Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, New York
| | - Nuo Yang
- Department of Anesthesiology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, New York, New York
| | | | - Yanmin Chen
- Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, New York
| | - Ashley L Mussell
- Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, New York
| | - Norma J Nowak
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, New York, New York
| | - Lester Kobzik
- Harvard TH Chan School of Public Health, Molecular and Integrative Physiological Sciences, Boston, Massachusetts
| | - Costa Frangou
- Harvard TH Chan School of Public Health, Molecular and Integrative Physiological Sciences, Boston, Massachusetts.
| | - Jianmin Zhang
- Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, New York.
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23
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Joachim RB, Altschuler GM, Hutchinson JN, Wong HR, Hide WA, Kobzik L. The relative resistance of children to sepsis mortality: from pathways to drug candidates. Mol Syst Biol 2018; 14:e7998. [PMID: 29773677 PMCID: PMC5974511 DOI: 10.15252/msb.20177998] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Attempts to develop drugs that address sepsis based on leads developed in animal models have failed. We sought to identify leads based on human data by exploiting a natural experiment: the relative resistance of children to mortality from severe infections and sepsis. Using public datasets, we identified key differences in pathway activity (Pathprint) in blood transcriptome profiles of septic adults and children. To find drugs that could promote beneficial (child) pathways or inhibit harmful (adult) ones, we built an in silico pathway drug network (PDN) using expression correlation between drug, disease, and pathway gene signatures across 58,475 microarrays. Specific pathway clusters from children or adults were assessed for correlation with drug‐based signatures. Validation by literature curation and by direct testing in an endotoxemia model of murine sepsis of the most correlated drug candidates demonstrated that the Pathprint‐PDN methodology is more effective at generating positive drug leads than gene‐level methods (e.g., CMap). Pathway‐centric Pathprint‐PDN is a powerful new way to identify drug candidates for intervention against sepsis and provides direct insight into pathways that may determine survival.
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Affiliation(s)
- Rose B Joachim
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Gabriel M Altschuler
- Department of Neuroscience, Sheffield Institute for Translational Neurosciences, University of Sheffield, Sheffield, UK
| | - John N Hutchinson
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Hector R Wong
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Winston A Hide
- Department of Neuroscience, Sheffield Institute for Translational Neurosciences, University of Sheffield, Sheffield, UK .,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA .,Department of Pathology, Brigham & Women's Hospital, Boston, MA, USA
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24
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Wang L, Han R, Kobzik L, Hancock W. A Non-cuff Surgical Technique and Potent Peri-Transplant Immunomodulation Together Promote Long-term Survival of Murine Orthotopic Lung Allografts. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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25
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Petkovic D, Kobzik L, Re C. Machine learning and deep analytics for biocomputing: call for better explainability. Pac Symp Biocomput 2018; 23:623-627. [PMID: 29218921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The goals of this workshop are to discuss challenges in explainability of current Machine Leaning and Deep Analytics (MLDA) used in biocomputing and to start the discussion on ways to improve it. We define explainability in MLDA as easy to use information explaining why and how the MLDA approach made its decisions. We believe that much greater effort is needed to address the issue of MLDA explainability because of: 1) the ever increasing use and dependence on MLDA in biocomputing including the need for increased adoption by non-MLD experts; 2) the diversity, complexity and scale of biocomputing data and MLDA algorithms; 3) the emerging importance of MLDA-based decisions in patient care, in daily research, as well as in the development of new costly medical procedures and drugs. This workshop aims to: a) analyze and challenge the current level of explainability of MLDA methods and practices in biocomputing; b) explore benefits of improvements in this area; and c) provide useful and practical guidance to the biocomputing community on how to address these challenges and how to develop improvements. The workshop format is designed to encourage a lively discussion with panelists to first motivate and understand the problem and then to define next steps and solutions needed to improve MLDA explainability.
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Affiliation(s)
- Dragutin Petkovic
- Computer Science Department, San Francisco State University (SFSU), 1600 Holloway Ave, San Francisco, CA 94132, USA,
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26
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Gregory DJ, Kramnik I, Kobzik L. Protection of macrophages from intracellular pathogens by miR-182-5p mimic-a gene expression meta-analysis approach. FEBS J 2017; 285:244-260. [PMID: 29197182 DOI: 10.1111/febs.14348] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 09/29/2017] [Accepted: 11/28/2017] [Indexed: 12/25/2022]
Abstract
The goals of this study were to (a) define which host genes are of particular importance during the interactions between macrophages and intracellular pathogens, and (b) use this knowledge to gain fresh, experimental understanding of how macrophage activities may be manipulated during host defense. We designed an in silico method for meta-analysis of microarray gene expression data, and used this to combine data from 16 different studies of cells in the monocyte-macrophage lineage infected with seven different pathogens. Three thousand four hundred ninety-eight genes were identified, which we call the macrophage intracellular pathogen response (macIPR) gene set. As expected, the macIPR gene set showed a strong bias toward genes previously associated with the immune response. Predicted target sites for miR-182-5p (miR-182) were strongly over-represented among macIPR genes, indicating an unexpected role for miR-182-regulatable genes during intracellular pathogenesis. We therefore transfected primary human alveolar macrophage-like monocyte-derived macrophages from multiple different donors with synthetic miR-182, and found that miR-182 overexpression (a) increases proinflammatory gene induction during infection with Francisella tularensis live vaccine strain (LVS), (b) primes macrophages for increased autophagy, and (c) enhances macrophage control of both gram negative F. tularensisLVS and gram positive Bacillus anthracisANR-1 spores. These data therefore suggest a new application for miR-182 in promoting resistance to intracellular pathogens.
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Affiliation(s)
- David J Gregory
- Molecular and Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Igor Kramnik
- Pulmonary Center, Department of Medicine, National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, MA, USA
| | - Lester Kobzik
- Molecular and Physiological Sciences Program, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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27
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Abstract
Sepsis is a common and deadly syndrome in which a dysregulated host response to infection causes organ failure and death. The current lack of treatment options suggests that a new approach to studying sepsis is needed. Pre-pubertal children show a relative resistance to death from severe infections and sepsis. To explore this phenomenon experimentally, we used an endotoxemia model of sepsis in mice. Following intra-peritoneal injection of endotoxin, pre-pubertal mice showed greater survival than post-pubertal mice (76.3% vs. 28.6%), despite exhibiting a similar degree of inflammation after two hours. Age-associated differences in the inflammatory response only became evident at twenty hours, when post-pubertal mice showed prolonged elevation of serum cytokines and differential recruitment of peritoneal immune cells. Mechanistically, prevention of puberty by hormonal blockade or acceleration of puberty by oestrogen treatment led to increased or decreased survival from endotoxemia, respectively. Additionally, the adoptive transfer of pre-pubertal peritoneal cells improved the survival of post-pubertal recipient mice, while post-pubertal peritoneal cells or vehicle did not. These data establish a model for studying childhood resistance to mortality from endotoxemia, demonstrate that oestrogen is responsible for an increased susceptibility to mortality after puberty, and identify peritoneal cells as mediators of pre-pubertal resistance.
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Affiliation(s)
- Rose Joachim
- Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Freeman Suber
- Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Lester Kobzik
- Harvard T. H. Chan School of Public Health, Boston, MA, USA.
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28
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PrabhuDas MR, Baldwin CL, Bollyky PL, Bowdish DME, Drickamer K, Febbraio M, Herz J, Kobzik L, Krieger M, Loike J, McVicker B, Means TK, Moestrup SK, Post SR, Sawamura T, Silverstein S, Speth RC, Telfer JC, Thiele GM, Wang XY, Wright SD, El Khoury J. A Consensus Definitive Classification of Scavenger Receptors and Their Roles in Health and Disease. J Immunol 2017; 198:3775-3789. [PMID: 28483986 DOI: 10.4049/jimmunol.1700373] [Citation(s) in RCA: 214] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 03/13/2017] [Indexed: 02/07/2023]
Abstract
Scavenger receptors constitute a large family of proteins that are structurally diverse and participate in a wide range of biological functions. These receptors are expressed predominantly by myeloid cells and recognize a diverse variety of ligands including endogenous and modified host-derived molecules and microbial pathogens. There are currently eight classes of scavenger receptors, many of which have multiple names, leading to inconsistencies and confusion in the literature. To address this problem, a workshop was organized by the United States National Institute of Allergy and Infectious Diseases, National Institutes of Health, to help develop a clear definition of scavenger receptors and a standardized nomenclature based on that definition. Fifteen experts in the scavenger receptor field attended the workshop and, after extensive discussion, reached a consensus regarding the definition of scavenger receptors and a proposed scavenger receptor nomenclature. Scavenger receptors were defined as cell surface receptors that typically bind multiple ligands and promote the removal of nonself or altered-self targets. They often function by mechanisms that include endocytosis, phagocytosis, adhesion, and signaling that ultimately lead to the elimination of degraded or harmful substances. Based on this definition, nomenclature and classification of these receptors into 10 classes were proposed. This classification was discussed at three national meetings and input from participants at these meetings was requested. The following manuscript is a consensus statement that combines the recommendations of the initial workshop and incorporates the input received from the participants at the three national meetings.
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Affiliation(s)
- Mercy R PrabhuDas
- Division of Allergy, Immunology and Transplantation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852;
| | - Cynthia L Baldwin
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003.,Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA 01003
| | - Paul L Bollyky
- Department of Medicine, Stanford University, Stanford, CA 94305
| | - Dawn M E Bowdish
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, M.G. DeGroote Institute of Infectious Disease Research, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Kurt Drickamer
- Department of Life Sciences, Imperial College, London SW7 2AZ, United Kingdom
| | - Maria Febbraio
- Department of Dentistry, Katz Group Centre for Pharmacy and Health Research, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - Joachim Herz
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390.,Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390.,Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390.,Center for Translational Neurodegeneration Research, University of Texas Southwestern Medical Center, Dallas, TX 75390.,Peter O'Donnell Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Lester Kobzik
- Department of Environmental Health, Harvard School of Public Health, Boston, MA 02115
| | - Monty Krieger
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - John Loike
- Department of Physiology and Cellular Biophysics, Columbia University, New York, NY 10032
| | - Benita McVicker
- University of Nebraska Medical Center, Omaha VA Nebraska-Western Iowa Health Care System, Omaha, NE 68105
| | - Terry K Means
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129
| | - Soren K Moestrup
- Department of Biomedicine, University of Aarhus, 8000 Aarhus C, Denmark
| | - Steven R Post
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR 72205
| | - Tatsuya Sawamura
- Department of Physiology, Research Institute, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - Samuel Silverstein
- Department of Physiology and Cellular Biophysics, Columbia University, New York, NY 10032
| | - Robert C Speth
- Department of Pharmaceutical Sciences, Nova Southeastern University, Fort Lauderdale, FL 33328
| | - Janice C Telfer
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003
| | - Geoffrey M Thiele
- Division of Rheumatology, Department of Medicine, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68105
| | - Xiang-Yang Wang
- Department of Human and Molecular Genetics, Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, VA 23298
| | - Samuel D Wright
- Cardiovascular Therapeutics, CSL Behring, King of Prussia, PA 19406; and
| | - Joseph El Khoury
- Infectious Disease Division, Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129
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29
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Suber F, Kobzik L. Childhood tolerance of severe influenza: a mortality analysis in mice. Am J Physiol Lung Cell Mol Physiol 2017; 313:L1087-L1095. [PMID: 28882815 DOI: 10.1152/ajplung.00364.2017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 08/30/2017] [Accepted: 08/31/2017] [Indexed: 12/18/2022] Open
Abstract
During the 1918 influenza pandemic, children experienced substantially lower mortality than adults, a striking but unexplained finding. Whether this was due to enhanced resistance (reduced virus load) or better tolerance (reduced impact of infection) has not been defined. We found that prepubertal mice infected with H1N1 influenza virus also showed greater survival than infected pubertal mice, despite similar virus loads. Transcriptome profiling of infected lungs identified estrogen as a regulator of susceptibility in both sexes and also linked better survival to late expression of IL-1β. Blocking puberty with gonadectomy or a gonadotropin-releasing hormone antagonist improved survival. Estrogen or testosterone (which can be converted to estrogen) restored susceptibility of gonadectomized pubertal mice to influenza mortality, but dihydrotestosterone (which cannot be converted to estrogen) did not. Estrogen receptor blockade with fulvestrant in both male and female pubertal mice resulted in improved survival, even when given 3 days after infection. Moreover, late, but not early, IL-1β neutralization after infection was also protective. These findings indicate that pubertal increases in estrogen in both sexes are associated with increased mortality during influenza. This helps explain the reduced mortality of children seen with influenza in 1918 and might also be relevant to childhood tolerance to many other infectious diseases.
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Affiliation(s)
- Freeman Suber
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Lester Kobzik
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
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Meyer KFM, Krauss-Etschmann S, Verkaik-Schakel RN, Timens W, Kobzik L, Plösch T, Hylkema M. Pregnancy smoking: Tissue- and sex-specific drift of Igf1r and Igf1 methylation in mouse fetuses and neonates. Genes Environ 2017. [DOI: 10.1183/1393003.congress-2017.oa2947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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31
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Gamradt P, Xu Y, Gratz N, Duncan K, Kobzik L, Högler S, Kovarik P, Decker T, Jamieson AM. Correction: The Influence of Programmed Cell Death in Myeloid Cells on Host Resilience to Infection with Legionella pneumophila or Streptococcus pyogenes. PLoS Pathog 2017; 13:e1006591. [PMID: 28854275 PMCID: PMC5576669 DOI: 10.1371/journal.ppat.1006591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Affiliation(s)
- Sanjay Divakaran
- From the Departments of Medicine and Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston
| | - Paul Dellaripa
- From the Departments of Medicine and Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston
| | - Lester Kobzik
- From the Departments of Medicine and Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston
| | - Bruce Levy
- From the Departments of Medicine and Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston
| | - Joseph Loscalzo
- From the Departments of Medicine and Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston
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33
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Divakaran S, Vaidya A, Kobzik L, Dellaripa P. All That Wheezes.. N Engl J Med 2017; 377:e6. [PMID: 28745993 DOI: 10.1056/nejmimc1613182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Gregory DJ, Kobzik L, Yang Z, McGuire CC, Fedulov AV. Transgenerational transmission of asthma risk after exposure to environmental particles during pregnancy. Am J Physiol Lung Cell Mol Physiol 2017; 313:L395-L405. [PMID: 28495853 DOI: 10.1152/ajplung.00035.2017] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 04/11/2017] [Accepted: 05/03/2017] [Indexed: 01/23/2023] Open
Abstract
Exposure to environmental particles during pregnancy increases asthma susceptibility of the offspring. We tested the hypothesis that this transmission continues to F2 and F3 generations and occurs via epigenetic mechanisms. We compared allergic susceptibility of three generations of BALB/c offspring after a single maternal exposure during pregnancy to diesel exhaust particles or concentrated urban air particles. After pregnant dams received intranasal instillations of particle suspensions or control, their F1, F2, and F3 offspring were tested in a low-dose ovalbumin protocol for sensitivity to allergic asthma. We found that the elevated susceptibility after maternal exposure to particles during pregnancy persists into F2 and, with lesser magnitude, into F3 generations. This was evident from elevated eosinophil counts in bronchoalveolar lavage (BAL) fluid, histopathological changes of allergic airway disease, and increased BAL levels of IL-5 and IL-13. We have previously shown that dendritic cells (DCs) can mediate transmission of risk upon adoptive transfer. Therefore, we used an enhanced reduced representation bisulfite sequencing protocol to quantify DNA methylation in DCs from each generation. Distinct methylation changes were identified in F1, F2, and F3 DCs. The subset of altered loci shared across the three generations were not linked to known allergy genes or pathways but included a number of genes linked to chromatin modification, suggesting potential interaction with other epigenetic mechanisms (e.g., histone modifications). The data indicate that pregnancy airway exposure to diesel exhaust particles (DEP) triggers a transgenerationally transmitted asthma susceptibility and suggests a mechanistic role for epigenetic alterations in DCs in this process.
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Affiliation(s)
- David J Gregory
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and.,Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Lester Kobzik
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and
| | - Zhiping Yang
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and
| | - Connor C McGuire
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and.,Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Alexey V Fedulov
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and .,Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
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35
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Joachim RB, Suber F, Kobzik L. Characterizing childhood resistance to deadly immune dysfunction in severe infections. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.220.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Epidemiological data show that pre-pubertal children possess a relative resistance to death from severe infections—particularly those characterized by “cytokine storm” and profound immune dysfunction (e.g. the 1918 pandemic flu, measles, bacteremia). To assess the role that pubertal status may have on an animal’s ability to appropriately regulate inflammation, we employed an endotoxemia model of sterile sepsis in mice. Following acute endotoxin injection (i.p., 23 μg/g), pre-pubertal mice (PND 25) exhibited significantly better survival than post-pubertal mice (PND 35) over a 72-hour period (78 vs. 29%, p<0.0001, n>50). Serum endotoxin concentrations were similar in both age groups at 2 and 20hr time points, suggesting that the difference in mortality was not due to differential endotoxin absorption. Surprisingly, improved survival among pre-pubertal animals did not correlate with a decreased inflammatory response. At 2hr pre-pubertal mice had higher absolute white blood cell counts, elevated numbers of Ly6G+CD11B+ granulocytic cells in the peritoneal cavity, and increased levels of several pro-inflammatory cytokines, compared to post-pubertal animals. In contrast, by 20hr pre-pubertal mice showed significantly decreased expression of pro-inflammatory cytokines, and increased expression of the anti-inflammatory cytokine IL-10 (1100 ± 290 vs. 750 ± 225 pg/ml, p<0.001). Blockade of puberty with leuprolide substantially improved survival compared to age-matched post-pubertal mice (75 vs. 32%, p<0.0001, n>30), and treatment of pre-pubertal mice with estradiol increased subsequent mortality, suggesting a causal role for sex hormone(s) in the increased susceptibility of post-pubertal mice.
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36
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Wu M, Gibbons JG, DeLoid GM, Bedugnis AS, Thimmulappa RK, Biswal S, Kobzik L. Immunomodulators targeting MARCO expression improve resistance to postinfluenza bacterial pneumonia. Am J Physiol Lung Cell Mol Physiol 2017; 313:L138-L153. [PMID: 28408365 DOI: 10.1152/ajplung.00075.2017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 03/27/2017] [Accepted: 04/04/2017] [Indexed: 01/12/2023] Open
Abstract
Downregulation of the alveolar macrophage (AM) receptor with collagenous structure (MARCO) leads to susceptibility to postinfluenza bacterial pneumonia, a major cause of morbidity and mortality. We sought to determine whether immunomodulation of MARCO could improve host defense and resistance to secondary bacterial pneumonia. RNAseq analysis identified a striking increase in MARCO expression between days 9 and 11 after influenza infection and indicated important roles for Akt and Nrf2 in MARCO recovery. In vitro, primary human AM-like monocyte-derived macrophages (AM-MDMs) and THP-1 macrophages were treated with IFNγ to model influenza effects. Activators of Nrf2 (sulforaphane) or Akt (SC79) caused increased MARCO expression and a MARCO-dependent improvement in phagocytosis in IFNγ-treated cells and improved survival in mice with postinfluenza pneumococcal pneumonia. Transcription factor analysis also indicated a role for transcription factor E-box (TFEB) in MARCO recovery. Overexpression of TFEB in THP-1 cells led to marked increases in MARCO. The ability of Akt activation to increase MARCO expression in IFNγ-treated AM-MDMs was abrogated in TFEB-knockdown cells, indicating Akt increases MARCO expression through TFEB. Increasing MARCO expression by targeting Nrf2 signaling or the Akt-TFEB-MARCO pathway are promising strategies to improve bacterial clearance and survival in postinfluenza bacterial pneumonia.
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Affiliation(s)
- Muzo Wu
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - John G Gibbons
- Biology Department, Clark University, Worcester, Massachusetts; and
| | - Glen M DeLoid
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Alice S Bedugnis
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Rajesh K Thimmulappa
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Shyam Biswal
- Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Lester Kobzik
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts;
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37
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Ordija CM, Chiou TTY, Yang Z, Deloid GM, de Oliveira Valdo M, Wang Z, Bedugnis A, Noah TL, Jones S, Koziel H, Kobzik L. Free actin impairs macrophage bacterial defenses via scavenger receptor MARCO interaction with reversal by plasma gelsolin. Am J Physiol Lung Cell Mol Physiol 2017; 312:L1018-L1028. [PMID: 28385809 PMCID: PMC5495953 DOI: 10.1152/ajplung.00067.2017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 03/27/2017] [Accepted: 03/29/2017] [Indexed: 12/20/2022] Open
Abstract
Lung injury can release intracellular actin into the alveolar milieu and is also associated with increased susceptibility to secondary infections. We investigated the effect of free (extracellular) actin on lung macrophage host defense functions. Western blot analysis demonstrated free actin release into the lung lavage fluids of mouse models of ozone injury, influenza infection, and secondary pneumococcal pneumonia and in samples from patients following burn and inhalation injury. Using levels comparable with those observed in lung injury, we found that free actin markedly inhibited murine lung macrophage binding and uptake in vitro of S. pneumoniae, S. aureus, and E. coli, (e.g., S. pneumoniae, mean %inhibition, actin vs. vehicle: 85 ± 0.3 (SD); n = 22, P < .001). Similar effects were observed on the ability of primary human macrophages to bind and ingest fluorescent Saureus (~75% inhibition). Plasma gelsolin (pGSN), a protein that functions to bind and cleave actin, restored bacterial binding and uptake by both murine and human macrophages. Scavenger receptor inhibitors reduced binding of fluorescent actin by murine macrophages [fluorescence index (×10-3) after incubation with vehicle, actin, or actin + polyinosinic acid, respectively: 0.8 ± 0.7, 101.7 ± 50.7, or 52.7 ± 16.9; n = 5-6, P < 0.05]. In addition, actin binding was reduced in a MARCO/SR-AI/II-deficient cell line and by normal AMs obtained from MARCO-/- mice. After release from injured cells during lung injury, free actin likely contributes to impaired host defense by blocking scavenger receptor binding of bacteria. This mechanism for increased risk of secondary infections after lung injury or inflammation may represent another target for therapeutic intervention with pGSN.
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Affiliation(s)
- Christine M Ordija
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Terry Ting-Yu Chiou
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts.,Division of Nephrology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang-Gung University College of Medicine, Kaohsiung, Taiwan
| | - Zhiping Yang
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Glen M Deloid
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Melina de Oliveira Valdo
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Zhi Wang
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Alice Bedugnis
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Terry L Noah
- Department of Pediatrics, Pulmonology Division, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Samuel Jones
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - Henry Koziel
- Division of Pulmonary, Critical Care, and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Lester Kobzik
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts;
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38
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Meyer KF, Krauss-Etschmann S, Kooistra W, Reinders-Luinge M, Timens W, Kobzik L, Plösch T, Hylkema MN. Prenatal exposure to tobacco smoke sex dependently influences methylation and mRNA levels of the Igf axis in lungs of mouse offspring. Am J Physiol Lung Cell Mol Physiol 2017; 312:L542-L555. [PMID: 28130259 DOI: 10.1152/ajplung.00271.2016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 01/26/2017] [Accepted: 01/26/2017] [Indexed: 12/12/2022] Open
Abstract
Prenatal smoke exposure is a risk factor for abnormal lung development and increased sex-dependent susceptibility for asthma and chronic obstructive pulmonary disease (COPD). Birth cohort studies show genome-wide DNA methylation changes in children from smoking mothers, but evidence for sex-dependent smoke-induced effects is limited. The insulin-like growth factor (IGF) system plays an important role in lung development. We hypothesized that prenatal exposure to smoke induces lasting changes in promoter methylation patterns of Igf1 and Igf1r, thus influencing transcriptional activity and contributing to abnormal lung development. We measured and compared mRNA levels along with promoter methylation of Igf1 and Igf1r and their protein concentrations in lung tissue of 30-day-old mice that had been prenatally exposed to cigarette smoke (PSE) or filtered air (control). Body weight at 30 days after birth was measured as global indicator of normal development. Female PSE mice showed lower mRNA levels of Igf1 and its receptor (Igf1: P = 0.05; Igf1r: P = 0.03). Furthermore, CpG-site-specific methylation changes were detected in Igf1r in a sex-dependent manner and the body weight of female offspring was reduced after prenatal exposure to smoke, while protein concentrations were unaffected. Prenatal exposure to smoke induces a CpG-site-specific loss of Igf1r promoter methylation, which can be associated with body weight. These findings highlight the sex-dependent and potentially detrimental effects of in utero smoke exposure on DNA methylation and Igf1 and Igf1r mRNA levels. The observations support a role for Igf1 and Igf1r in abnormal development.
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Affiliation(s)
- K F Meyer
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, The Netherlands
- GRIAC Research Institute, University of Groningen, University Medical Center Groningen, The Netherlands
| | - S Krauss-Etschmann
- Priority Area Asthma and Allergy, Leibnitz Center for Medicine and Biosciences, Research Center Borstel and Christian Albrechts University Kiel, Germany
| | - W Kooistra
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, The Netherlands
- GRIAC Research Institute, University of Groningen, University Medical Center Groningen, The Netherlands
| | - M Reinders-Luinge
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, The Netherlands
- GRIAC Research Institute, University of Groningen, University Medical Center Groningen, The Netherlands
| | - W Timens
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, The Netherlands
- GRIAC Research Institute, University of Groningen, University Medical Center Groningen, The Netherlands
| | - L Kobzik
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and
| | - T Plösch
- Department of Obstetrics and Gynaecology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - M N Hylkema
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, The Netherlands;
- GRIAC Research Institute, University of Groningen, University Medical Center Groningen, The Netherlands
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Kobzik L. Searching for a Lifeline: Transcriptome Profiling Studies of Influenza Susceptibility and Resistance. J Innate Immun 2017; 9:232-242. [PMID: 28249256 DOI: 10.1159/000457902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 01/24/2017] [Indexed: 11/19/2022] Open
Abstract
Excess or dysregulated host inflammatory responses cause much of the morbidity and mortality caused by severe influenza. Given the limitations of vaccines and antiviral drugs, novel therapeutics to modulate host responses and improve outcomes in severe influenza are needed. One strategy is to learn from the direct comparison of high-survivor versus high-mortality animal models. This review surveys the results of lung transcriptome profiling studies in murine models that directly compare susceptible versus resistant hosts challenged with identical influenza infections. The potential contributions and limitations of these studies are discussed. To amplify their power, the studies are subjected to a meta-analysis, which helps identify frequently dysregulated pathways and potentially novel areas for investigation. Using connectivity map-based tools (LINCS), transcriptome signatures linked to susceptibility can identify candidate drugs that merit testing for in vivo efficacy.
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Affiliation(s)
- Lester Kobzik
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, and Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
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40
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Gamradt P, Xu Y, Gratz N, Duncan K, Kobzik L, Högler S, Kovarik P, Decker T, Jamieson AM. The Influence of Programmed Cell Death in Myeloid Cells on Host Resilience to Infection with Legionella pneumophila or Streptococcus pyogenes. PLoS Pathog 2016; 12:e1006032. [PMID: 27973535 PMCID: PMC5156374 DOI: 10.1371/journal.ppat.1006032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/29/2016] [Indexed: 12/21/2022] Open
Abstract
Pathogen clearance and host resilience/tolerance to infection are both important factors in surviving an infection. Cells of the myeloid lineage play important roles in both of these processes. Neutrophils, monocytes, macrophages, and dendritic cells all have important roles in initiation of the immune response and clearance of bacterial pathogens. If these cells are not properly regulated they can result in excessive inflammation and immunopathology leading to decreased host resilience. Programmed cell death (PCD) is one possible mechanism that myeloid cells may use to prevent excessive inflammation. Myeloid cell subsets play roles in tissue repair, immune response resolution, and maintenance of homeostasis, so excessive PCD may also influence host resilience in this way. In addition, myeloid cell death is one mechanism used to control pathogen replication and dissemination. Many of these functions for PCD have been well defined in vitro, but the role in vivo is less well understood. We created a mouse that constitutively expresses the pro-survival B-cell lymphoma (bcl)-2 protein in myeloid cells (CD68(bcl2tg), thus decreasing PCD specifically in myeloid cells. Using this mouse model we explored the impact that decreased cell death of these cells has on infection with two different bacterial pathogens, Legionella pneumophila and Streptococcus pyogenes. Both of these pathogens target multiple cell death pathways in myeloid cells, and the expression of bcl2 resulted in decreased PCD after infection. We examined both pathogen clearance and host resilience and found that myeloid cell death was crucial for host resilience. Surprisingly, the decreased myeloid PCD had minimal impact on pathogen clearance. These data indicate that the most important role of PCD during infection with these bacteria is to minimize inflammation and increase host resilience, not to aid in the clearance or prevent the spread of the pathogen.
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Affiliation(s)
- Pia Gamradt
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
- CIRI, International Center for Infectiology Research, Université de Lyon, Lyon, France
- Inserm U111, Lyon, France
- Ecole Normale Supérieure de Lyon, Lyon, France
- Université Lyon 1, Centre International de Recherche en Infectiologie, Lyon, France
- CNRS, UMR 5308, Lyon, France
| | - Yun Xu
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island, United States
| | - Nina Gratz
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | - Kellyanne Duncan
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island, United States
| | - Lester Kobzik
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States
| | - Sandra Högler
- Institute of Pathology and Forensic Veterinary Medicine, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Pavel Kovarik
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | - Thomas Decker
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
| | - Amanda M. Jamieson
- Max F. Perutz Laboratories, University of Vienna, Vienna, Austria
- Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island, United States
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41
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High M, Cho HY, Marzec J, Wiltshire T, Verhein KC, Caballero MT, Acosta PL, Ciencewicki J, McCaw ZR, Kobzik L, Miller-DeGraff L, Gladwell W, Peden DB, Serra ME, Shi M, Weinberg C, Suzuki O, Wang X, Bell DA, Polack FP, Kleeberger SR. Determinants of host susceptibility to murine respiratory syncytial virus (RSV) disease identify a role for the innate immunity scavenger receptor MARCO gene in human infants. EBioMedicine 2016; 11:73-84. [PMID: 27554839 PMCID: PMC5049919 DOI: 10.1016/j.ebiom.2016.08.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 08/02/2016] [Accepted: 08/05/2016] [Indexed: 11/29/2022] Open
Abstract
Background Respiratory syncytial virus (RSV) is the global leading cause of lower respiratory tract infection in infants. Nearly 30% of all infected infants develop severe disease including bronchiolitis, but susceptibility mechanisms remain unclear. Methods We infected a panel of 30 inbred strains of mice with RSV and measured changes in lung disease parameters 1 and 5 days post-infection and they were used in genome-wide association (GWA) studies to identify quantitative trait loci (QTL) and susceptibility gene candidates. Findings GWA identified QTLs for RSV disease phenotypes, and the innate immunity scavenger receptor Marco was a candidate susceptibility gene; targeted deletion of Marco worsened murine RSV disease. We characterized a human MARCO promoter SNP that caused loss of gene expression, increased in vitro cellular response to RSV infection, and associated with increased risk of disease severity in two independent populations of children infected with RSV. Interpretation Translational integration of a genetic animal model and in vitro human studies identified a role for MARCO in human RSV disease severity. Because no RSV vaccines are approved for clinical use, genetic studies have implications for diagnosing individuals who are at risk for severe RSV disease, and disease prevention strategies (e.g. RSV antibodies). In a panel of inbred strains of mice, RSV disease phenotypes were characterized that resemble those in human disease. We identified Marco as a susceptibility gene, and a human MARCO mutation increased risk of disease severity in children. These studies have implications for diagnosing individuals who are at risk for severe RSV disease and prevent disease.
RSV disease is the primary global cause for hospitalization one year after birth but the causes of differential RSV disease severity are not understood. We show that RSV disease phenotypes vary significantly between inbred strains of mice, and resemble those in human disease. We used genetic approaches to identify and validate the innate immunity gene Marco as a host susceptibility determinant for murine RSV disease. We then characterized a loss of function polymorphism in human MARCO that increases risk of severe RSV disease risk in infants. Results have important implications for identifying genetic risk factors for severe RSV disease.
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Affiliation(s)
- Monica High
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Hye-Youn Cho
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jacqui Marzec
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Tim Wiltshire
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Kirsten C Verhein
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | | - Patricio L Acosta
- Fundación INFANT, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Buenos Aires, Argentina
| | - Jonathan Ciencewicki
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Zackary R McCaw
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard University School of Public Health, Boston, MA, USA
| | - Laura Miller-DeGraff
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Wes Gladwell
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - David B Peden
- Center for Environmental Medicine, Asthma and Lung Biology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Min Shi
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Clarice Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Oscar Suzuki
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Xuting Wang
- Genome Integrity & Structural Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Douglas A Bell
- Genome Integrity & Structural Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Fernando P Polack
- Fundación INFANT, Buenos Aires, Argentina; Department of Pediatrics, Vanderbilt University, Nashville, TN, USA.
| | - Steven R Kleeberger
- Immunity, Inflammation, and Diseases Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
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Jiang Z, Lao T, Qiu W, Polverino F, Gupta K, Guo F, Mancini JD, Naing ZZC, Cho MH, Castaldi PJ, Sun Y, Yu J, Laucho-Contreras ME, Kobzik L, Raby BA, Choi AMK, Perrella MA, Owen CA, Silverman EK, Zhou X. A Chronic Obstructive Pulmonary Disease Susceptibility Gene, FAM13A, Regulates Protein Stability of β-Catenin. Am J Respir Crit Care Med 2016; 194:185-97. [PMID: 26862784 PMCID: PMC5003213 DOI: 10.1164/rccm.201505-0999oc] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 01/21/2016] [Indexed: 12/28/2022] Open
Abstract
RATIONALE A genetic locus within the FAM13A gene has been consistently associated with chronic obstructive pulmonary disease (COPD) in genome-wide association studies. However, the mechanisms by which FAM13A contributes to COPD susceptibility are unknown. OBJECTIVES To determine the biologic function of FAM13A in human COPD and murine COPD models and discover the molecular mechanism by which FAM13A influences COPD susceptibility. METHODS Fam13a null mice (Fam13a(-/-)) were generated and exposed to cigarette smoke. The lung inflammatory response and airspace size were assessed in Fam13a(-/-) and Fam13a(+/+) littermate control mice. Cellular localization of FAM13A protein and mRNA levels of FAM13A in COPD lungs were assessed using immunofluorescence, Western blotting, and reverse transcriptase-polymerase chain reaction, respectively. Immunoprecipitation followed by mass spectrometry identified cellular proteins that interact with FAM13A to reveal insights on FAM13A's function. MEASUREMENTS AND MAIN RESULTS In murine and human lungs, FAM13A is expressed in airway and alveolar type II epithelial cells and macrophages. Fam13a null mice (Fam13a(-/-)) were resistant to chronic cigarette smoke-induced emphysema compared with Fam13a(+/+) mice. In vitro, FAM13A interacts with protein phosphatase 2A and recruits protein phosphatase 2A with glycogen synthase kinase 3β and β-catenin, inducing β-catenin degradation. Fam13a(-/-) mice were also resistant to elastase-induced emphysema, and this resistance was reversed by coadministration of a β-catenin inhibitor, suggesting that FAM13A could increase the susceptibility of mice to emphysema development by inhibiting β-catenin signaling. Moreover, human COPD lungs had decreased protein levels of β-catenin and increased protein levels of FAM13A. CONCLUSIONS We show that FAM13A may influence COPD susceptibility by promoting β-catenin degradation.
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Affiliation(s)
- Zhiqiang Jiang
- Channing Division of Network Medicine, Department of Medicine
| | - Taotao Lao
- Channing Division of Network Medicine, Department of Medicine
| | - Weiliang Qiu
- Channing Division of Network Medicine, Department of Medicine
| | - Francesca Polverino
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
- The Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Kushagra Gupta
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Feng Guo
- Channing Division of Network Medicine, Department of Medicine
| | - John D. Mancini
- Channing Division of Network Medicine, Department of Medicine
| | | | - Michael H. Cho
- Channing Division of Network Medicine, Department of Medicine
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Peter J. Castaldi
- Channing Division of Network Medicine, Department of Medicine
- Division of General Internal Medicine, Department of Medicine, and
| | - Yang Sun
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Jane Yu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - Lester Kobzik
- Department of Pathology, Brigham and Women’s Hospital, Boston, Massachusetts; and
| | - Benjamin A. Raby
- Channing Division of Network Medicine, Department of Medicine
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | | | - Mark A. Perrella
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
- Pediatric Newborn Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Caroline A. Owen
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
- The Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Edwin K. Silverman
- Channing Division of Network Medicine, Department of Medicine
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
| | - Xiaobo Zhou
- Channing Division of Network Medicine, Department of Medicine
- Division of Pulmonary and Critical Care Medicine, Department of Medicine
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43
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Mayo L, Cunha APD, Madi A, Beynon V, Yang Z, Alvarez JI, Prat A, Sobel RA, Kobzik L, Lassmann H, Quintana FJ, Weiner HL. IL-10-dependent Tr1 cells attenuate astrocyte activation and ameliorate chronic central nervous system inflammation. Brain 2016; 139:1939-57. [PMID: 27246324 PMCID: PMC4939696 DOI: 10.1093/brain/aww113] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 03/21/2016] [Indexed: 01/09/2023] Open
Abstract
See Winger and Zamvil (doi:
10.1093/brain/aww121
) for a scientific commentary on this article.
The innate immune system plays a central role in the chronic central nervous system inflammation that drives neurological disability in progressive forms of multiple sclerosis, for which there are no effective treatments. The mucosal immune system is a unique tolerogenic organ that provides a physiological approach for the induction of regulatory T cells. Here we report that nasal administration of CD3-specific antibody ameliorates disease in a progressive animal model of multiple sclerosis. This effect is IL-10-dependent and is mediated by the induction of regulatory T cells that share a similar transcriptional profile to Tr1 regulatory cells and that suppress the astrocyte inflammatory transcriptional program. Treatment results in an attenuated inflammatory milieu in the central nervous system, decreased microglia activation, reduced recruitment of peripheral monocytes, stabilization of the blood–brain barrier and less neurodegeneration. These findings suggest a new therapeutic approach for the treatment of progressive forms of multiple sclerosis and potentially other types of chronic central nervous system inflammation.
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Affiliation(s)
- Lior Mayo
- 1 Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA 2 Cell Research and Immunology Department, Sagol School of Neuroscience, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 699788, Israel
| | - Andre Pires Da Cunha
- 1 Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Asaf Madi
- 3 Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Vanessa Beynon
- 1 Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Zhiping Yang
- 4 Environmental Health Department, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jorge I Alvarez
- 5 Neuroimmunology Research Lab, CRCHUM, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada 6 Pathobiology Department, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alexandre Prat
- 5 Neuroimmunology Research Lab, CRCHUM, Faculty of Medicine, Université de Montréal, Montréal, QC, Canada
| | | | - Lester Kobzik
- 4 Environmental Health Department, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Hans Lassmann
- 8 Center for Brain Research, Medical University of Vienna, Spitalgasse 4, A-1090 Wien, Austria
| | - Francisco J Quintana
- 1 Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Howard L Weiner
- 1 Ann Romney Center for Neurologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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Bhattacharya B, Chatterjee S, Devine WG, Kobzik L, Beeler AB, Porco JA, Kramnik I. Fine-tuning of macrophage activation using synthetic rocaglate derivatives. Sci Rep 2016; 6:24409. [PMID: 27086720 PMCID: PMC4834551 DOI: 10.1038/srep24409] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 03/29/2016] [Indexed: 12/25/2022] Open
Abstract
Drug-resistant bacteria represent a significant global threat. Given the dearth of new antibiotics, host-directed therapies (HDTs) are especially desirable. As IFN-gamma (IFNγ) plays a central role in host resistance to intracellular bacteria, including Mycobacterium tuberculosis, we searched for small molecules to augment the IFNγ response in macrophages. Using an interferon-inducible nuclear protein Ipr1 as a biomarker of macrophage activation, we performed a high-throughput screen and identified molecules that synergized with low concentration of IFNγ. Several active compounds belonged to the flavagline (rocaglate) family. In primary macrophages a subset of rocaglates 1) synergized with low concentrations of IFNγ in stimulating expression of a subset of IFN-inducible genes, including a key regulator of the IFNγ network, Irf1; 2) suppressed the expression of inducible nitric oxide synthase and type I IFN and 3) induced autophagy. These compounds may represent a basis for macrophage-directed therapies that fine-tune macrophage effector functions to combat intracellular pathogens and reduce inflammatory tissue damage. These therapies would be especially relevant to fighting drug-resistant pathogens, where improving host immunity may prove to be the ultimate resource.
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Affiliation(s)
- Bidisha Bhattacharya
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA, 02118, USA
| | - Sujoy Chatterjee
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA, 02118, USA
| | - William G Devine
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA, 02215, USA
| | - Lester Kobzik
- Department of Environmental Health, Harvard School of Public Health, Boston, MA, 02115, USA
| | - Aaron B Beeler
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA, 02215, USA
| | - John A Porco
- Department of Chemistry, Center for Molecular Discovery (BU-CMD), Boston University, Boston, MA, 02215, USA
| | - Igor Kramnik
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, National Emerging Infectious Diseases Laboratories (NEIDL), Boston University, Boston, MA, 02118, USA
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45
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DeLoid G, Casella B, Pirela S, Filoramo R, Pyrgiotakis G, Demokritou P, Kobzik L. Effects of engineered nanomaterial exposure on macrophage innate immune function. NanoImpact 2016; 2:70-81. [PMID: 29568809 PMCID: PMC5860825 DOI: 10.1016/j.impact.2016.07.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Increasing use of engineered nanomaterials (ENMs) means increased human exposures. Potential adverse effects include those on the immune system, ranging from direct toxicity to impairment of defenses against environmental pathogens and toxins. Effects on lung macrophages may be especially prominent, because they serve to clear foreign materials like ENMs and bacterial pathogens. We investigated the effects of 4 hour exposures over a range of concentrations, of a panel of industry-relevant ENMs, including SiO2, Fe2O3, ZnO, CeO2, TiO2, and an Ag/SiO2 composite, on human THP-1 macrophages. Effects on phagocytosis of latex beads, and phagocytosis and killing of Francisella tularensis (FT), as well as viability, oxidative stress and mitochondrial integrity, were measured by automated scanning confocal microscopy and image analysis. Results revealed some notable patterns: 1) Phagocytosis of unopsonized beads was increased, whereas that of opsonized beads was decreased, by all ENMs, with the exception of ZnO, which reduced both opsonized and unopsonized uptake; 2) Uptake of opsonized and unopsonized FT was either impaired or unaffected by all ENMs, with the exception of CeO2, which increased phagocytosis of unopsonized FT; 3) Macrophage killing of FT tended to improve with all ENMs; and 4) Viability was unaffected immediately following exposures with all ENMs tested, but was significantly decreased 24 hours after exposures to Ag/SiO2 and ZnO ENMs. The results reveal a complex landscape of ENM effects on macrophage host defenses, including both enhanced and reduced capacities, and underscore the importance of robust hazard assessment, including immunotoxicity assessment, of ENMs.
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Affiliation(s)
- Glen DeLoid
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
- corresponding author: Glen M. DeLoid,
| | - Beatriz Casella
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
- Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - Sandra Pirela
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
| | - Rose Filoramo
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
| | - Georgios Pyrgiotakis
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
| | - Lester Kobzik
- Center for Nanotechnology and Nanotoxicology, Department of Environmental Health, Harvard School of Public Health, Boston, MA, United States of America
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America
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46
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Pirela SV, Miousse IR, Lu X, Castranova V, Thomas T, Qian Y, Bello D, Kobzik L, Koturbash I, Demokritou P. Effects of Laser Printer-Emitted Engineered Nanoparticles on Cytotoxicity, Chemokine Expression, Reactive Oxygen Species, DNA Methylation, and DNA Damage: A Comprehensive in Vitro Analysis in Human Small Airway Epithelial Cells, Macrophages, and Lymphoblasts. Environ Health Perspect 2016; 124:210-9. [PMID: 26080392 PMCID: PMC4749083 DOI: 10.1289/ehp.1409582] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 06/12/2015] [Indexed: 05/20/2023]
Abstract
BACKGROUND Engineered nanomaterials (ENMs) incorporated into toner formulations of printing equipment become airborne during consumer use. Although information on the complex physicochemical and toxicological properties of both toner powders and printer-emitted particles (PEPs) continues to grow, most toxicological studies have not used the actual PEPs but rather have primarily used raw toner powders, which are not representative of current exposures experienced at the consumer level during printing. OBJECTIVES We assessed the biological responses of a panel of human cell lines to PEPs. METHODS Three physiologically relevant cell lines--small airway epithelial cells (SAECs), macrophages (THP-1 cells), and lymphoblasts (TK6 cells)--were exposed to PEPs at a wide range of doses (0.5-100 μg/mL) corresponding to human inhalation exposure durations at the consumer level of 8 hr or more. Following treatment, toxicological parameters reflecting distinct mechanisms were evaluated. RESULTS PEPs caused significant membrane integrity damage, an increase in reactive oxygen species (ROS) production, and an increase in pro-inflammatory cytokine release in different cell lines at doses equivalent to exposure durations from 7.8 to 1,500 hr. Furthermore, there were differences in methylation patterns that, although not statistically significant, demonstrate the potential effects of PEPs on the overall epigenome following exposure. CONCLUSIONS The in vitro findings obtained in this study suggest that laser printer-emitted engineered nanoparticles may be deleterious to lung cells and provide preliminary evidence of epigenetic modifications that might translate to pulmonary disorders.
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Affiliation(s)
- Sandra V. Pirela
- Department of Environmental Health, Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Isabelle R. Miousse
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Xiaoyan Lu
- Department of Environmental Health, Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Vincent Castranova
- Department of Pharmaceutical Sciences, West Virginia University, Morgantown, West Virginia, USA
| | - Treye Thomas
- Office of Hazard Identification and Reduction, U.S. Consumer Product Safety Commission, Rockville, Maryland, USA
| | - Yong Qian
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
| | - Dhimiter Bello
- Department of Environmental Health, Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
- Department of Work Environment, University of Massachusetts-Lowell, Lowell, Massachusetts, USA
| | - Lester Kobzik
- Department of Environmental Health, Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Igor Koturbash
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Philip Demokritou
- Department of Environmental Health, Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
- Address correspondence to P. Demokritou, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Room 1310B, Boston, MA 02115 USA. (617) 432-3481. E-mail:
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47
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Puchta A, Naidoo A, Verschoor CP, Loukov D, Thevaranjan N, Mandur TS, Nguyen PS, Jordana M, Loeb M, Xing Z, Kobzik L, Larché MJ, Bowdish DME. TNF Drives Monocyte Dysfunction with Age and Results in Impaired Anti-pneumococcal Immunity. PLoS Pathog 2016; 12:e1005368. [PMID: 26766566 PMCID: PMC4713203 DOI: 10.1371/journal.ppat.1005368] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 12/06/2015] [Indexed: 12/24/2022] Open
Abstract
Monocyte phenotype and output changes with age, but why this occurs and how it impacts anti-bacterial immunity are not clear. We found that, in both humans and mice, circulating monocyte phenotype and function was altered with age due to increasing levels of TNF in the circulation that occur as part of the aging process. Ly6C+ monocytes from old (18–22 mo) mice and CD14+CD16+ intermediate/inflammatory monocytes from older adults also contributed to this “age-associated inflammation” as they produced more of the inflammatory cytokines IL6 and TNF in the steady state and when stimulated with bacterial products. Using an aged mouse model of pneumococcal colonization we found that chronic exposure to TNF with age altered the maturity of circulating monocytes, as measured by F4/80 expression, and this decrease in monocyte maturation was directly linked to susceptibility to infection. Ly6C+ monocytes from old mice had higher levels of CCR2 expression, which promoted premature egress from the bone marrow when challenged with Streptococcus pneumoniae. Although Ly6C+ monocyte recruitment and TNF levels in the blood and nasopharnyx were higher in old mice during S. pneumoniae colonization, bacterial clearance was impaired. Counterintuitively, elevated TNF and excessive monocyte recruitment in old mice contributed to impaired anti-pneumococcal immunity since bacterial clearance was improved upon pharmacological reduction of TNF or Ly6C+ monocytes, which were the major producers of TNF. Thus, with age TNF impairs inflammatory monocyte development, function and promotes premature egress, which contribute to systemic inflammation and is ultimately detrimental to anti-pneumococcal immunity. As we age, levels of inflammatory cytokines in the blood and tissues increase. Although this appears to be an inevitable part of aging, it ultimately contributes to declining health. Epidemiological studies indicate that older adults with higher than age-average levels of inflammatory cytokines are at increased risk of acquiring, becoming hospitalized with and dying of Streptococcus pneumoniae pneumonia but how age-associated inflammation increased susceptibility to was not entirely clear. We demonstrate that the increase in the inflammatory cytokine TNF that occurs with age cause monocytes to leave the bone marrow prematurely and these immature monocytes produce more inflammatory cytokines when stimulated with bacterial products, thus further increasing levels of inflammatory cytokines in the blood. Furthermore, although old mice have higher levels of these inflammatory monocytes arriving at the site of S. pneumoniae, they are not able to clear the bacteria. By pharmacologically or genetically removing the inflammatory cytokine TNF or reducing the number of inflammatory monocytes we were able to restore antibacterial immunity in aged mice. Thus we demonstrate that monocytes are both influenced by and contributors to age-associated inflammation and that chronic exposure to age-associated inflammation increases susceptibility to S. pneumoniae due to altering monocyte maturity and function.
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Affiliation(s)
- Alicja Puchta
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Avee Naidoo
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Chris P. Verschoor
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Dessi Loukov
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Netusha Thevaranjan
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Talveer S. Mandur
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
| | - Phuong-son Nguyen
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Manel Jordana
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
| | - Mark Loeb
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
- Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada
| | - Zhou Xing
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
| | - Lester Kobzik
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | | | - Dawn M. E. Bowdish
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Canada
- * E-mail:
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Gregory DJ, Kobzik L. Influenza lung injury: mechanisms and therapeutic opportunities. Am J Physiol Lung Cell Mol Physiol 2015; 309:L1041-6. [PMID: 26408556 DOI: 10.1152/ajplung.00283.2015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 09/16/2015] [Indexed: 12/22/2022] Open
Abstract
In this Perspectives, we discuss some recent developments in the pathogenesis of acute lung injury following influenza infection, with an emphasis on promising therapeutic leads. Damage to the alveolar-capillary barrier has been quantified in mice, and agents have been identified that can help to preserve barrier integrity, such as vasculotide, angiopoietin-like 4 neutralization, and sphingosine 1-phosphate mimics. Results from studies using mesenchymal stem cells have been disappointing, despite promising data in other types of lung injury. The roles of fatty acid binding protein 5, prostaglandin E2, and the interplay between IFN-γ and STAT1 in epithelial signaling during infection have been addressed in vitro. Finally, we discuss the role of autophagy in inflammatory cytokine production and the viral life cycle and the opportunities this presents for intervention.
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Affiliation(s)
- David J Gregory
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T. H. Chan School of Public Health
| | - Lester Kobzik
- Molecular and Integrative Physiological Sciences Program, Department of Environmental Health, Harvard T. H. Chan School of Public Health
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49
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Murthy S, Larson-Casey JL, Ryan AJ, He C, Kobzik L, Carter AB. Alternative activation of macrophages and pulmonary fibrosis are modulated by scavenger receptor, macrophage receptor with collagenous structure. FASEB J 2015; 29:3527-36. [PMID: 25953850 PMCID: PMC4511206 DOI: 10.1096/fj.15-271304] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 04/27/2015] [Indexed: 01/04/2023]
Abstract
Alternative activation of alveolar macrophages is linked to fibrosis following exposure to asbestos. The scavenger receptor, macrophage receptor with collagenous structure (MARCO), provides innate immune defense against inhaled particles and pathogens; however, a receptor for asbestos has not been identified. We hypothesized that MARCO acts as an initial signaling receptor for asbestos, polarizes macrophages to a profibrotic M2 phenotype, and is required for the development of asbestos-induced fibrosis. Compared with normal subjects, alveolar macrophages isolated from patients with asbestosis express higher amounts of MARCO and have greater profibrotic polarization. Arginase 1 (40-fold) and IL-10 (265-fold) were higher in patients. In vivo, the genetic deletion of MARCO attenuated the profibrotic environment and pulmonary fibrosis in mice exposed to chrysotile. Moreover, alveolar macrophages from MARCO(-/-) mice polarize to an M1 phenotype, whereas wild-type mice have higher Ym1 (>3.0-fold) and nearly 7-fold more active TGF-β1 in bronchoalveolar lavage (BAL) fluid (BALF). Arg(432) and Arg(434) in domain V of MARCO are required for the polarization of macrophages to a profibrotic phenotype as mutation of these residues reduced FIZZ1 expression (17-fold) compared with cells expressing MARCO. These observations demonstrate that a macrophage membrane protein regulates the fibrotic response to lung injury and suggest a novel target for therapeutic intervention.
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Affiliation(s)
- Shubha Murthy
- *Department of Internal Medicine, Department of Radiation Oncology, and the Graduate Program in Free Radical and Radiation Biology, Carver College of Medicine, Iowa City, Iowa, USA; Harvard School of Public Health, Boston, Massachusetts, USA; Human Toxicology, College of Public Health, University of Iowa, Iowa City, Iowa, USA; Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA; and University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jennifer L Larson-Casey
- *Department of Internal Medicine, Department of Radiation Oncology, and the Graduate Program in Free Radical and Radiation Biology, Carver College of Medicine, Iowa City, Iowa, USA; Harvard School of Public Health, Boston, Massachusetts, USA; Human Toxicology, College of Public Health, University of Iowa, Iowa City, Iowa, USA; Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA; and University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Alan J Ryan
- *Department of Internal Medicine, Department of Radiation Oncology, and the Graduate Program in Free Radical and Radiation Biology, Carver College of Medicine, Iowa City, Iowa, USA; Harvard School of Public Health, Boston, Massachusetts, USA; Human Toxicology, College of Public Health, University of Iowa, Iowa City, Iowa, USA; Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA; and University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Chao He
- *Department of Internal Medicine, Department of Radiation Oncology, and the Graduate Program in Free Radical and Radiation Biology, Carver College of Medicine, Iowa City, Iowa, USA; Harvard School of Public Health, Boston, Massachusetts, USA; Human Toxicology, College of Public Health, University of Iowa, Iowa City, Iowa, USA; Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA; and University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Lester Kobzik
- *Department of Internal Medicine, Department of Radiation Oncology, and the Graduate Program in Free Radical and Radiation Biology, Carver College of Medicine, Iowa City, Iowa, USA; Harvard School of Public Health, Boston, Massachusetts, USA; Human Toxicology, College of Public Health, University of Iowa, Iowa City, Iowa, USA; Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA; and University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - A Brent Carter
- *Department of Internal Medicine, Department of Radiation Oncology, and the Graduate Program in Free Radical and Radiation Biology, Carver College of Medicine, Iowa City, Iowa, USA; Harvard School of Public Health, Boston, Massachusetts, USA; Human Toxicology, College of Public Health, University of Iowa, Iowa City, Iowa, USA; Iowa City Veterans Affairs Health Care System, Iowa City, Iowa, USA; and University of Alabama at Birmingham, Birmingham, Alabama, USA
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Yang Z, Chiou TTY, Stossel TP, Kobzik L. Plasma gelsolin improves lung host defense against pneumonia by enhancing macrophage NOS3 function. Am J Physiol Lung Cell Mol Physiol 2015; 309:L11-6. [PMID: 25957291 DOI: 10.1152/ajplung.00094.2015] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 05/07/2015] [Indexed: 11/22/2022] Open
Abstract
Plasma gelsolin (pGSN) functions as part of the "extracellular actin-scavenging system," but its potential to improve host defense against infection has not been studied. In a mouse model of primary pneumococcal pneumonia, recombinant human pGSN (rhu-pGSN) caused enhanced bacterial clearance, reduced acute inflammation, and improved survival. In vitro, rhu-pGSN rapidly improved lung macrophage uptake and killing of bacteria (Streptococcus pneumoniae, Escherichia coli, and Francisella tularensis). pGSN triggers activating phosphorylation (Ser(1177)) of macrophage nitric oxide synthase type III (NOS3), an enzyme with important bactericidal functions in lung macrophages. rhu-pGSN failed to enhance bacterial killing by NOS3(-/-) macrophages in vitro or bacterial clearance in NOS3(-/-) mice in vivo. Prophylaxis with immunomodulators may be especially relevant for patients at risk for secondary bacterial pneumonia, e.g., after influenza. Treatment of mice with pGSN challenged with pneumococci on postinfluenza day 7 (the peak of enhanced susceptibility to secondary infection) caused a ∼15-fold improvement in bacterial clearance, reduced acute neutrophilic inflammation, and markedly improved survival, even without antibiotic therapy. pGSN is a potential immunomodulator for improving lung host defense against primary and secondary bacterial pneumonia.
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Affiliation(s)
- Zhiping Yang
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Terry Ting-Yu Chiou
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts; Department of Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung City, Taiwan; and Chang-Gung University College of Medicine, Tao-Yuan City, Taiwan
| | - Thomas P Stossel
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Lester Kobzik
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts;
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