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Riffard C, Letaïef L, Azar S, Casrouge A, Brunet I, Teillaud JL, Dieu-Nosjean MC. Absence of sympathetic innervation hampers the generation of tertiary lymphoid structures upon acute lung inflammation. Sci Rep 2024; 14:11749. [PMID: 38782985 PMCID: PMC11116507 DOI: 10.1038/s41598-024-62673-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 05/20/2024] [Indexed: 05/25/2024] Open
Abstract
Tertiary lymphoid structures (TLS) are lymphoid organs present in inflammatory non-lymphoid tissues. Studies have linked TLS to favorable outcomes for patients with cancers or infectious diseases, but the mechanisms underlying their formation are not fully understood. In particular, secondary lymphoid organs innervation raises the question of sympathetic nerve fibers involvement in TLS organogenesis. We established a model of pulmonary inflammation based on 5 daily intranasal instillations of lipopolysaccharide (LPS) in immunocompetent mice. In this setting, lung lymphoid aggregates formed transiently, evolving toward mature TLS and disappearing when inflammation resolved. Sympathetic nerve fibers were then depleted using 6-hydroxydopamine. TLS quantification by immunohistochemistry showed a decrease in LPS-induced TLS number and surface in denervated mouse lungs. Although a reduction in alveolar space was observed, it did not impair overall pulmonary content of transcripts encoding TNF-α, IL-1β and IFN-γ inflammation molecules whose expression was induced by LPS instillations. Immunofluorescence analysis of immune infiltrates in lungs of LPS-treated mice showed a drop in the proportion of CD23+ naive cells among CD19+ B220+ B cells in denervated mice whereas the proportion of other cell subsets remained unchanged. These data support the existence of neuroimmune crosstalk impacting lung TLS neogenesis and local naive B cell pool.
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Affiliation(s)
- Clémence Riffard
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France.
- Inserm U1135, 75013, Paris, France.
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France.
| | - Laïla Letaïef
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France
- Inserm U1135, 75013, Paris, France
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France
| | - Safa Azar
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS UMR7241, Inserm U1050, 75231, Cedex Paris, France
- Université Paris Sciences and Lettres, 75231, Cedex Paris, France
| | - Armanda Casrouge
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France
- Inserm U1135, 75013, Paris, France
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France
| | - Isabelle Brunet
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS UMR7241, Inserm U1050, 75231, Cedex Paris, France
- Université Paris Sciences and Lettres, 75231, Cedex Paris, France
| | - Jean-Luc Teillaud
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France.
- Inserm U1135, 75013, Paris, France.
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France.
| | - Marie-Caroline Dieu-Nosjean
- Faculté de Santé Sorbonne Université, Sorbonne Université UMRS1135, 75013, Paris, France.
- Inserm U1135, 75013, Paris, France.
- Laboratory "Immune Microenvironment and Immunotherapy", Centre of Immunology and Microbial Infections, CIMI Paris, 75013, Paris, France.
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2
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Vicente-Gil S, Nuñez-Ortiz N, Morel E, Serra CR, Docando F, Díaz-Rosales P, Tafalla C. Immunomodulatory properties of Bacillus subtilis extracellular vesicles on rainbow trout intestinal cells and splenic leukocytes. Front Immunol 2024; 15:1394501. [PMID: 38774883 PMCID: PMC11106384 DOI: 10.3389/fimmu.2024.1394501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/22/2024] [Indexed: 05/24/2024] Open
Abstract
Extracellular vesicles (EVs) are cell-derived membrane-surrounded vesicles that carry bioactive molecules. Among EVs, outer membrane vesicles (OMVs), specifically produced by Gram-negative bacteria, have been extensively characterized and their potential as vaccines, adjuvants or immunotherapeutic agents, broadly explored in mammals. Nonetheless, Gram-positive bacteria can also produce bilayered spherical structures from 20 to 400 nm involved in pathogenesis, antibiotic resistance, nutrient uptake and nucleic acid transfer. However, information regarding their immunomodulatory potential is very scarce, both in mammals and fish. In the current study, we have produced EVs from the Gram-positive probiotic Bacillus subtilis and evaluated their immunomodulatory capacities using a rainbow trout intestinal epithelial cell line (RTgutGC) and splenic leukocytes. B. subtilis EVs significantly up-regulated the transcription of several pro-inflammatory and antimicrobial genes in both RTgutGC cells and splenocytes, while also up-regulating many genes associated with B cell differentiation in the later. In concordance, B. subtilis EVs increased the number of IgM-secreting cells in splenocyte cultures, while at the same time increased the MHC II surface levels and antigen-processing capacities of splenic IgM+ B cells. Interestingly, some of these experiments were repeated comparing the effects of B. subtilis EVs to EVs obtained from another Bacillus species, Bacillus megaterium, identifying important differences. The data presented provides evidence of the immunomodulatory capacities of Gram-positive EVs, pointing to the potential of B. subtilis EVs as adjuvants or immunostimulants for aquaculture.
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Affiliation(s)
- Samuel Vicente-Gil
- Fish Immunology and Pathology Group, Animal Health Research Centre (CISA-INIA-CSIC), Madrid, Spain
| | - Noelia Nuñez-Ortiz
- Fish Immunology and Pathology Group, Animal Health Research Centre (CISA-INIA-CSIC), Madrid, Spain
| | - Esther Morel
- Fish Immunology and Pathology Group, Animal Health Research Centre (CISA-INIA-CSIC), Madrid, Spain
| | - Cláudia R. Serra
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Matosinhos, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Félix Docando
- Fish Immunology and Pathology Group, Animal Health Research Centre (CISA-INIA-CSIC), Madrid, Spain
| | - Patricia Díaz-Rosales
- Fish Immunology and Pathology Group, Animal Health Research Centre (CISA-INIA-CSIC), Madrid, Spain
| | - Carolina Tafalla
- Fish Immunology and Pathology Group, Animal Health Research Centre (CISA-INIA-CSIC), Madrid, Spain
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3
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Vasconcelos-Fontes L, Vieira RC, He M, Ferreira-Reis R, Jurberg AD, Arêas Mendes-da-Cruz D, Andersson J, Cotta-de-Almeida V, Westerberg LS. Controlled WASp activity regulates the proliferative response for Treg cell differentiation in the thymus. Eur J Immunol 2024; 54:e2350450. [PMID: 38356202 DOI: 10.1002/eji.202350450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/16/2024]
Abstract
The Wiskott-Aldrich syndrome protein (WASp) regulates actin cytoskeletal dynamics and function of hematopoietic cells. Mutations in the WAS gene lead to two different syndromes; Wiskott-Aldrich syndrome (WAS) caused by loss-of-function mutations, and X-linked neutropenia (XLN) caused by gain-of-function mutations. We previously showed that WASp-deficient mice have a decreased number of regulatory T (Treg) cells in the thymus and the periphery. We here evaluated the impact of WASp mutations on Treg cells in the thymus of WAS and XLN mouse models. Using in vitro Treg differentiation assays, WAS CD4 single-positive thymocytes have decreased differentiation to Treg cells, despite normal early signaling upon IL-2 and TGF-β stimulation. They failed to proliferate and express CD25 at high levels, leading to poor survival and a lower number of Foxp3+ Treg cells. Conversely, XLN CD4 single-positive thymocytes efficiently differentiate into Foxp3+ Treg cells following a high proliferative response to IL-2 and TGF-β, associated with high CD25 expression when compared with WT cells. Altogether, these results show that specific mutations of WASp affect Treg cell development differently, demonstrating a critical role of WASp activity in supporting Treg cell development and expansion.
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Affiliation(s)
- Larissa Vasconcelos-Fontes
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - Rhaissa C Vieira
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Minghui He
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Rafaella Ferreira-Reis
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- Rio de Janeiro Research Network on Neuroinflammation (RENEURIN), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - Arnon Dias Jurberg
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- Rio de Janeiro Research Network on Neuroinflammation (RENEURIN), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - Daniella Arêas Mendes-da-Cruz
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- Rio de Janeiro Research Network on Neuroinflammation (RENEURIN), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - John Andersson
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden
| | - Vinicius Cotta-de-Almeida
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
- Rio de Janeiro Research Network on Neuroinflammation (RENEURIN), Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | - Lisa S Westerberg
- Department of Microbiology Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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Alugupalli KR. Monophosphoryl Lipid A-based Adjuvant to Promote the Immunogenicity of Multivalent Meningococcal Polysaccharide Conjugate Vaccines. Immunohorizons 2024; 8:317-325. [PMID: 38625118 PMCID: PMC11066721 DOI: 10.4049/immunohorizons.2400013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/01/2024] [Indexed: 04/17/2024] Open
Abstract
Activation of the adaptive immune system requires the engagement of costimulatory pathways in addition to B and T cell Ag receptor signaling, and adjuvants play a central role in this process. Many Gram-negative bacterial polysaccharide vaccines, including the tetravalent meningococcal conjugate vaccines (MCV4) and typhoid Vi polysaccharide vaccines, do not incorporate adjuvants. The immunogenicity of typhoid vaccines is due to the presence of associated TLR4 ligands in these vaccines. Because the immunogenicity of MCV4 is poor and requires boosters, I hypothesized that TLR4 ligands are absent in MCV4 and that incorporation of a TLR4 ligand-based adjuvant would improve their immunogenicity. Consistent with this hypothesis, two Food and Drug Administration-approved MCV4 vaccines, MENVEO and MenQuadfi, lack TLR4 ligands. Admixing monophosphoryl lipid A, a TLR4 ligand-based adjuvant formulation named "Turbo" with MCV4 induced significantly improved IgM and IgG responses to all four meningococcal serogroup polysaccharides in adult and aged mice after a single immunization. Furthermore, in infant mice, a single booster was sufficient to promote a robust IgG response and 100% seroconversion when MCV4 was adjuvanted with Turbo. Turbo upregulated the expression of the costimulatory molecules CD40 and CD86 on B cells, and Turbo-driven adjuvanticity is lost in mice deficient in CD40 and CD86. These data suggest that Turbo induces the required costimulatory molecules for its adjuvant activity and that incorporation of Turbo could make bacterial polysaccharide vaccines more immunogenic, minimize booster requirements, and be cost-effective, particularly for those individuals in low- and middle-income and disease-endemic countries.
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Affiliation(s)
- Kishore R. Alugupalli
- Department of Microbiology and Immunology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA; and TurboVax Inc., Philadelphia, PA
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Carey A, Nguyen K, Kandikonda P, Kruglov V, Bradley C, Dahlquist KJV, Cholensky S, Swanson W, Badovinac VP, Griffith TS, Camell CD. Age-associated accumulation of B cells promotes macrophage inflammation and inhibits lipolysis in adipose tissue during sepsis. Cell Rep 2024; 43:113967. [PMID: 38492219 PMCID: PMC11014686 DOI: 10.1016/j.celrep.2024.113967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/14/2024] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Non-canonical lipolysis induced by inflammatory cytokines or Toll-like receptor ligands is required for the regulation of inflammation during endotoxemia and sepsis. Canonical lipolysis induced by catecholamines declines during aging due to factors including an expansion of lymphocytes, pro-inflammatory macrophage polarization, and an increase in chronic low-grade inflammation; however, the extent to which the non-canonical pathway of lipolysis is active and impacted by immune cells during aging remains unclear. Therefore, we aimed to define the extent to which immune cells from old mice influence non-canonical lipolysis during sepsis. We identified age-associated impairments of non-canonical lipolysis and an accumulation of dysfunctional B1 B cells in the visceral white adipose tissue (vWAT) of old mice. Lifelong deficiency of B cells results in restored non-canonical lipolysis and reductions in pro-inflammatory macrophage populations. Our study suggests that targeting the B cell-macrophage signaling axis may resolve metabolic dysfunction in aged vWAT and attenuate septic severity in older individuals.
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Affiliation(s)
- Anna Carey
- Molecular Pharmacology and Therapeutics Graduate Program, Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA; Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Katie Nguyen
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Pranathi Kandikonda
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Victor Kruglov
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Claire Bradley
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Korbyn J V Dahlquist
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Stephanie Cholensky
- Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Whitney Swanson
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA
| | | | - Thomas S Griffith
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Urology, University of Minnesota, Minneapolis, MN 55455, USA; Minneapolis VA Health Care System, Minneapolis, MN 55417, USA
| | - Christina D Camell
- Molecular Pharmacology and Therapeutics Graduate Program, Department of Pharmacology, University of Minnesota, Minneapolis, MN 55455, USA; Institute on the Biology of Aging and Metabolism, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA.
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Bryson A, Gonzalez G, Al-Atoom N, Nashar N, Smith JR, Nashar T. Extracellular vesicles are conduits for E. coli heat-labile enterotoxin (LT) and the B-subunits of LT and cholera toxin in immune cell-to-cell communication. Microb Pathog 2023; 177:106038. [PMID: 36841487 PMCID: PMC10065948 DOI: 10.1016/j.micpath.2023.106038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/04/2023] [Accepted: 02/20/2023] [Indexed: 02/26/2023]
Abstract
Several pathogens excrete their toxins either directly into the host or through extracellular vesicles. Enterotoxigenic E. coli is capable of secreting heat-labile toxin LT in extracellular vesicles (EVs) which are delivered to mammalian cells. LT and its B-subunit, LTB, and their structurally and functionally related toxin from Vibrio cholerae, CT and CTB, are potent immunogens and adjuvants. However, despite their reported remarkable effects on immune cells, the mechanisms by which they mediate their immunological properties are still unclear. We show that B cells incubated with LT or LTB secreted EVs in the cell culture medium. However, compared to unstimulated cells, EVs and their internal protein content were significantly reduced in recipient B cells. Analysis of protein markers of the vesicles secreted by B cells were found to be enriched in exosomes of endosomal origin. B cells incubated with FITC-CTB secreted CTB in EVs which were taken up by recipient B and T cells. FITC-CTB transfected into exosomes from mouse dendritic cells were also taken up by recipient B cells. Moreover, B cells incubated with FITC-CTB secreted CTB in EVs which increased the number of recipient B cells expressing higher levels of CD25 and CD86. These results suggest that EVs from B cells are conduits for the enterotoxins, and play an important role in the enterotoxins immune cell-to-cell communication. This is the first report which looked at EVs as a mean to deliver these proteins from and to immune cells.
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Affiliation(s)
- Andreya Bryson
- Tuskegee University, College of Veterinary Medicine, Department of Pathobiology, Tuskegee, AL, AL 36088, USA
| | - Gabrielle Gonzalez
- Tuskegee University, College of Veterinary Medicine, Department of Pathobiology, Tuskegee, AL, AL 36088, USA
| | - Nadia Al-Atoom
- Tuskegee University, College of Veterinary Medicine, Department of Pathobiology, Tuskegee, AL, AL 36088, USA
| | - Nijad Nashar
- The University at Buffalo, School of Pharmacy and Pharmaceutical Sciences, Buffalo, NY, 14215, USA
| | - Ja R'eika Smith
- Tuskegee University, College of Veterinary Medicine, Department of Pathobiology, Tuskegee, AL, AL 36088, USA
| | - Toufic Nashar
- Tuskegee University, College of Veterinary Medicine, Department of Pathobiology, Tuskegee, AL, AL 36088, USA.
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Zegallai HM, Abu-El-Rub E, Mejia EM, Sparagna GC, Cole LK, Marshall AJ, Hatch GM. Tafazzin deficiency attenuates anti-cluster of differentiation 40 and interleukin-4 activation of mouse B lymphocytes. Cell Tissue Res 2022; 390:429-439. [PMID: 36129532 DOI: 10.1007/s00441-022-03692-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 09/14/2022] [Indexed: 12/14/2022]
Abstract
Barth syndrome (BTHS) is a rare X-linked genetic disease caused by mutations in TAFAZZIN. The tafazzin (Taz) protein is a cardiolipin remodeling enzyme required for maintaining mitochondrial function. Patients with BTHS exhibit impaired mitochondrial respiratory chain and metabolic function and are susceptible to serious infections. B lymphocytes (B cells) play a vital role in humoral immunity required to eradicate circulating antigens from pathogens. Intact mitochondrial respiration is required for proper B-cell function. We investigated whether Taz deficiency in mouse B cells altered their response to activation by anti-cluster of differentiation 40 (anti-CD40) + interleukin-4 (IL-4). B cells were isolated from 3-4-month-old wild type (WT) or tafazzin knockdown (TazKD) mice and were stimulated with anti-CD40 + IL-4 for 24 h and cellular bioenergetics, surface marker expression, proliferation, antibody production, and proteasome and immunoproteasome activities determined. TazKD B cells exhibited reduced mRNA expression of Taz, lowered levels of cardiolipin, and impairment in both oxidative phosphorylation and glycolysis compared to WT B cells. In addition, anti-CD40 + IL-4 stimulated TazKD B cells expressed lower levels of the immunogenic surface markers, cluster of differentiation 86 (CD86) and cluster of differentiation 69 (CD69), exhibited a lower proliferation rate, reduced production of immunoglobulin M and immunoglobulin G, and reduced proteasome and immunoproteasome proteolytic activities compared to WT B cells stimulated with anti-CD40 + IL-4. The results indicate that Taz is required to support T-cell-dependent signaling activation of mouse B cells.
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Affiliation(s)
- Hana M Zegallai
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme, Department of Pharmacology & Therapeutics, Rady Faculty of Health Sciences, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Canada
| | - Ejlal Abu-El-Rub
- Physiology and Pathophysiology, Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid, Jordan
- Physiology and Pathophysiology, Rady Faculty of Health Sciences, Regenerative Medicine, University of Manitoba, Winnipeg, Canada
| | - Edgard M Mejia
- Department of Immunology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Genevieve C Sparagna
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Center, Aurora, Denver CO, USA
| | - Laura K Cole
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme, Department of Pharmacology & Therapeutics, Rady Faculty of Health Sciences, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Canada
| | - Aaron J Marshall
- Department of Immunology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Grant M Hatch
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme, Department of Pharmacology & Therapeutics, Rady Faculty of Health Sciences, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Canada.
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8
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Huang Y, Shin JE, Xu AM, Yao C, Joung S, Wu M, Zhang R, Shin B, Foley J, Mahov SB, Modes ME, Ebinger JE, Driver M, Braun JG, Jefferies CA, Parimon T, Hayes C, Sobhani K, Merchant A, Gharib SA, Jordan SC, Cheng S, Goodridge HS, Chen P. Evidence of premature lymphocyte aging in people with low anti-spike antibody levels after BNT162b2 vaccination. iScience 2022; 25:105209. [PMID: 36188190 PMCID: PMC9510055 DOI: 10.1016/j.isci.2022.105209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/22/2022] [Accepted: 09/22/2022] [Indexed: 11/26/2022] Open
Abstract
SARS-CoV-2 vaccines have unquestionably blunted the overall impact of the COVID-19 pandemic, but host factors such as age, sex, obesity, and other co-morbidities can affect vaccine efficacy. We identified individuals in a relatively healthy population of healthcare workers (CORALE study cohort) who had unexpectedly low peak anti-spike receptor binding domain (S-RBD) antibody levels after receiving the BNT162b2 vaccine. Compared to matched controls, "low responders" had fewer spike-specific antibody-producing B cells after the second and third/booster doses. Moreover, their spike-specific T cell receptor (TCR) repertoire had less depth and their CD4+ and CD8+T cell responses to spike peptide stimulation were less robust. Single cell transcriptomic evaluation of peripheral blood mononuclear cells revealed activation of aging pathways in low responder B and CD4+T cells that could underlie their attenuated anti-S-RBD antibody production. Premature lymphocyte aging may therefore contribute to a less effective humoral response and could reduce vaccination efficacy.
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Affiliation(s)
- Yapei Huang
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Juliana E. Shin
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Alexander M. Xu
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Division of Hematology and Cellular Therapy, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Changfu Yao
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Sandy Joung
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Min Wu
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Ruan Zhang
- Comprehensive Transplant Center, Transplant Immunology Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Bongha Shin
- Comprehensive Transplant Center, Transplant Immunology Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Joslyn Foley
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Division of Hematology and Cellular Therapy, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Simeon B. Mahov
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Division of Hematology and Cellular Therapy, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Matthew E. Modes
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Joseph E. Ebinger
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Matthew Driver
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jonathan G. Braun
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Caroline A. Jefferies
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Department of Medicine, Division of Rheumatology, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Tanyalak Parimon
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Chelsea Hayes
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Kimia Sobhani
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Akil Merchant
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Division of Hematology and Cellular Therapy, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Sina A. Gharib
- Computational Medicine Core at Center for Lung Biology, Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, WA 98109, USA
| | - Stanley C. Jordan
- Comprehensive Transplant Center, Transplant Immunology Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Susan Cheng
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Helen S. Goodridge
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
- Research Division of Immunology in the Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Peter Chen
- Women’s Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
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9
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Plantone D, Pardini M, Locci S, Nobili F, De Stefano N. B Lymphocytes in Alzheimer's Disease-A Comprehensive Review. J Alzheimers Dis 2022; 88:1241-1262. [PMID: 35754274 DOI: 10.3233/jad-220261] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Alzheimer's disease (AD) represents the most common type of neurodegenerative dementia and is characterized by extracellular amyloid-β (Aβ) deposition, pathologic intracellular tau protein tangles, and neuronal loss. Increasing evidence has been accumulating over the past years, supporting a pivotal role of inflammation in the pathogenesis of AD. Microglia, monocytes, astrocytes, and neurons have been shown to play a major role in AD-associated inflammation. However recent studies showed that the role of both T and B lymphocytes may be important. In particular, B lymphocytes are the cornerstone of humoral immunity, they constitute a heterogenous population of immune cells, being their mature subsets significantly impacted by the inflammatory milieu. The role of B lymphocytes on AD pathogenesis is gaining interest for several reasons. Indeed, the majority of elderly people develop the process of "inflammaging", which is characterized by increased blood levels of proinflammatory molecules associated with an elevated susceptibility to chronic diseases. Epitope-specific alteration pattern of naturally occurring antibodies targeting the amino-terminus and the mid-domain of Aβ in both plasma and cerebrospinal fluid has been described in AD patients. Moreover, a possible therapeutic role of B lymphocytes depletion was recently demonstrated in murine AD models. Interestingly, active immunization against Aβ and tau, one of the main therapeutic strategies under investigation, depend on B lymphocytes. Finally. several molecules being tested in AD clinical trials can modify the homeostasis of B cells. This review summarizes the evidence supporting the role of B lymphocytes in AD from the pathogenesis to the possible therapeutic implications.
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Affiliation(s)
- Domenico Plantone
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Matteo Pardini
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genova, Italy.,Ospedale Policlinico San Martino, IRCCS, Genoa, Italy
| | - Sara Locci
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | - Flavio Nobili
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genova, Italy.,Ospedale Policlinico San Martino, IRCCS, Genoa, Italy
| | - Nicola De Stefano
- Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
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10
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Raczkowski HL, Xu LS, Wang WC, Dekoter RP. The E26 Transformation-Specific Family Transcription Factor Spi-C Is Dynamically Regulated by External Signals in B Cells. Immunohorizons 2022; 6:104-115. [PMID: 38285436 DOI: 10.4049/immunohorizons.2100111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 12/31/2021] [Indexed: 01/30/2024] Open
Abstract
Spi-C is an E26 transformation-specific transcription factor closely related to PU.1 and Spi-B. Spi-C has lineage-instructive functions important in B cell development, Ab-generating responses, and red pulp macrophage generation. This research examined the regulation of Spi-C expression in mouse B cells. To determine the mechanism of Spic regulation, we identified the Spic promoter and upstream regulatory elements. The Spic promoter had unidirectional activity that was reduced by mutation of an NF-κB binding site. Reverse transcription-quantitative PCR analysis revealed that Spic expression was reduced in B cells following treatment with cytokines BAFF + IL-4 + IL-5, anti-IgM Ab, or LPS. Cytochalasin treatment partially prevented downregulation of Spic. Unstimulated B cells upregulated Spic on culture. Spic was repressed by an upstream regulatory region interacting with the heme-binding regulator Bach2. Taken together, these data indicate that Spi-C is dynamically regulated by external signals in B cells and provide insight into the mechanism of regulation.
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Affiliation(s)
- Hannah L Raczkowski
- Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
- Division of Genetics and Development, Children's Health Research Institute, Lawson Health Research Institute, London, Ontario, Canada
| | - Li S Xu
- Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
- Division of Genetics and Development, Children's Health Research Institute, Lawson Health Research Institute, London, Ontario, Canada
| | - Wei Cen Wang
- Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
- Division of Genetics and Development, Children's Health Research Institute, Lawson Health Research Institute, London, Ontario, Canada
| | - Rodney P Dekoter
- Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
- Division of Genetics and Development, Children's Health Research Institute, Lawson Health Research Institute, London, Ontario, Canada
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11
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Canine peripheral blood mononuclear cell-derived B lymphocytes pretreated with lipopolysaccharide enhance the immunomodulatory effect through macrophage polarization. PLoS One 2021; 16:e0256651. [PMID: 34807933 PMCID: PMC8608335 DOI: 10.1371/journal.pone.0256651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 08/11/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Preconditioning with lipopolysaccharide (LPS) is used to improve the secretion of anti-inflammatory agents in B cells. However, there are only a few studies on canine B cells. OBJECTIVE This study aimed to evaluate the immune regulatory capacity of canine peripheral blood mononuclear cell-derived B cells pretreated with LPS. METHODS Canine B cells were isolated from canine peripheral blood mononuclear cells, which were obtained from three healthy canine donors. The B cells were preconditioned with LPS, and then cell viability and the expression of the regulatory B cell marker were assessed. Finally, RNA extraction and immunofluorescence analysis were performed. RESULTS LPS primed B cells expressed the interleukin (IL)-10 surface marker and immunoregulatory gene expression, such as IL-10, programmed death-ligand 1, and transforming growth factor beta. Macrophages in the inflammatory condition cocultured with primed B cells were found to have significantly down-regulated pro-inflammatory cytokine, such as tumor necrosis factor-α, and up-regulated anti-inflammatory cytokines such as IL-10. Additionally, it was revealed that co-culture with primed B cells re-polarized M1 macrophages to M2 macrophages. CONCLUSIONS This study revealed that LPS-primed B cells have an anti-inflammatory effect and can re-polarize macrophages, suggesting the possibility of using LPS-primed B cells as a therapeutic agent for its anti-inflammatory effects and immune modulation.
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12
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Lymphoma-Associated Biomarkers Are Increased in Current Smokers in Twin Pairs Discordant for Smoking. Cancers (Basel) 2021; 13:cancers13215395. [PMID: 34771561 PMCID: PMC8582438 DOI: 10.3390/cancers13215395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Smoking is associated with a moderate increased risk of Hodgkin and follicular lymphoma. To help understand why, we examined lymphoma-related biomarker levels among 134 smoking and non-smoking twins (67 pairs) ascertained from the Finnish Twin Cohort. We validated self-reported smoking history by measuring serum cotinine, a metabolite of nicotine, from previously collected frozen serum samples. In total, 27 immune biomarkers were assayed using the Luminex Multiplex platform (R & D Systems). We found that four immune response biomarkers were higher and one was lower among smoking compared to non-smoking twins. The strongest association was observed for CCL17/TARC, a biomarker elevated in Hodgkin lymphoma patients. Immune biomarker levels were similar in former smokers and non-smokers. Current smoking may increase levels of immune proteins that could partially explain the association between smoking and risk of certain lymphomas. Abstract Smoking is associated with a moderate increased risk of Hodgkin and follicular lymphoma. To understand why, we examined lymphoma-related biomarker levels among 134 smoking and non-smoking twins (67 pairs) ascertained from the Finnish Twin Cohort. Previously collected frozen serum samples were tested for cotinine to validate self-reported smoking history. In total, 27 immune biomarkers were assayed using the Luminex Multiplex platform (R & D Systems). Current and non-current smokers were defined by a serum cotinine concentration of >3.08 ng/mL and ≤3.08 ng/mL, respectively. Associations between biomarkers and smoking were assessed using linear mixed models to estimate beta coefficients and standard errors, adjusting for age, sex and twin pair as a random effect. There were 55 never smokers, 43 current smokers and 36 former smokers. CCL17/TARC, sgp130, haptoglobin, B-cell activating factor (BAFF) and monocyte chemoattractant protein-1 (MCP1) were significantly (p < 0.05) associated with current smoking and correlated with increasing cotinine concentrations (Ptrend < 0.05). The strongest association was observed for CCL17/TARC (Ptrend = 0.0001). Immune biomarker levels were similar in former and never smokers. Current smoking is associated with increased levels of lymphoma-associated biomarkers, suggesting a possible mechanism for the link between smoking and risk of these two B-cell lymphomas.
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Busse M, Plenagl S, Campe NKJ, Müller AJ, Tedford K, Schumacher A, Zenclussen AC. Maternal B Cell-Intrinsic MyD88 Signaling Mediates LPS-Driven Intrauterine Fetal Death. Cells 2021; 10:2693. [PMID: 34685673 PMCID: PMC8534512 DOI: 10.3390/cells10102693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022] Open
Abstract
Immunological networks balance tolerance towards paternal alloantigens during pregnancy with normal immune response to pathogens. Subclinical infections can impact this balance and lead to preterm birth or even intrauterine fetal death (IUFD). We recently showed that loss of maternal B cells renders murine fetuses susceptible to IUFD after LPS exposure. Since the signaling pathway involved in this B-cell mediated response remains unclear, we aimed to understand the participation of MyD88 in this response using B-cell-specific MyD88-deficient (BMyD88-/-) mice. B cells isolated from wild-type (WT), BMyD88-/-, CD19-/- and MyD88-/- dams on gestational day (gd) 10 responded differently to LPS concerning cytokine secretion. In vivo LPS challenge on gd 10 provoked IUFD in CD19-/- mothers with functional MyD88, while fetuses from BMyD88-/- and MyD88-/- mice were protected. These outcomes were associated with altered cytokine levels in the maternal serum and changes in CD4+ T-cell responses. Overall, the loss of MyD88 signaling in maternal B cells prevents the activation of cytokine release that leads to IUFD. Thus, while MyD88 signaling in maternal B cells protects the mother from infection, it ultimately kills the fetus. Understanding the cellular mechanisms underlying infection-driven pregnancy complications is the first step to designing powerful therapeutic strategies in the future.
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Affiliation(s)
- Mandy Busse
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, 39108 Magdeburg, Germany; (M.B.); (S.P.); (N.K.J.C.)
| | - Susanne Plenagl
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, 39108 Magdeburg, Germany; (M.B.); (S.P.); (N.K.J.C.)
| | - Norina Kim Jutta Campe
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, 39108 Magdeburg, Germany; (M.B.); (S.P.); (N.K.J.C.)
| | - Andreas J. Müller
- Institute for Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany;
- Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Kerry Tedford
- Institute of Biochemistry and Cell Biology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany;
| | - Anne Schumacher
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany;
- Saxonian Incubator for Translation Research, Leipzig University, 04103 Leipzig, Germany
| | - Ana Claudia Zenclussen
- Department of Environmental Immunology, Helmholtz Centre for Environmental Research-UFZ, 04318 Leipzig, Germany;
- Saxonian Incubator for Translation Research, Leipzig University, 04103 Leipzig, Germany
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14
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Maleki M, Salouti M. Immunization effect of lipopolysaccharide antigen in conjugation with PLGA nanoparticles as a nanovaccine against Brucella melitensis infection. Biologicals 2021; 72:10-17. [PMID: 34167853 DOI: 10.1016/j.biologicals.2021.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 06/09/2021] [Accepted: 06/14/2021] [Indexed: 11/29/2022] Open
Abstract
Brucella is an infectious disease with difficult treatment faced with drug resistance and recurrence of infection. Despite advances in the development of effective vaccines against brucellosis infections, there is still a need for more effective vaccine against brucellosis. In this study, we developed a nanovaccine for delivery of lipopolysaccharide Brucella melitensis antigen to the immune system using PLGA nanoparticles to prevent Brucella infection, which is associated with the stimulation of both humoral and cellular immune systems. In particular, we determined the rate of produced immunoglobulines and their functional effectiveness on the immune system by carring out opsonophagocytosis and challenge tests. According to the results, it was determined that PLGA improve the delivery of LPS antigen to the immune system to enhance the production of immunoglobulins levels and their efficiency to remove Brucella bacteria.
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Affiliation(s)
- Masoud Maleki
- Dept. of Microbiology, Faculty of Sciences, Zanjan Branch, Islamic Azad University, Zanjan, Iran.
| | - Mojtaba Salouti
- Nanobiotechnology Research Center, Zanjan Branch, Islamic Azad University, Zanjan, Iran.
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15
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Kim KJ, Paik HD, Kim JY. Immune-Enhancing Effects of Lactobacillus plantarum 200655 Isolated from Korean Kimchi in a Cyclophosphamide-Induced Immunocompromised Mouse Model. J Microbiol Biotechnol 2021; 31:726-732. [PMID: 33820888 PMCID: PMC9705930 DOI: 10.4014/jmb.2103.03028] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/15/2022]
Abstract
In this study, we evaluated the immune-enhancing activity of kimchi-derived Lactobacillus plantarum 200655 on immune suppression by cyclophosphamide (CP) in ICR mice. Animals were fed distilled water or 1×109 colony-forming unit/kg B.W. 200655 or Lactobacillus rhamnosus GG as a positive control for 14 days. An in vivo model of immunosuppression was induced using CP 150 and 100 mg/kg B.W. at 7 and 10 days, respectively. Body weight, spleen index, spleen weight, and gene expression were measured to estimate the immune-enhancing effects. The dead 200655 (D-200655) group showed an increased spleen weight compared to the sham control (SC) group. Similarly, the spleen index was significantly higher than that in the CP-treated group. The live 200655 (L-200655) group showed an increased mRNA expression of tumor necrosis factor-alpha (TNF-α) and interleukin (IL)-6 in splenocytes. Also, the iNOS and COX-2 mRNA expression was upregulated in the L-200655 group compared to the CP-only (SC) group. The phosphorylation of ERK and MAPK was also upmodulated in the L-200655 group. These results indicate that L. plantarum 200655 ameliorated CP-induced immune suppression, suggesting that L. plantarum 200655 may have the potential to enhance the immune system.
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Affiliation(s)
- Kyeong Jin Kim
- Department of Nano Bio engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea
| | - Ji Yeon Kim
- Department of Nano Bio engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea,Department of Food Science and Technology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea,Corresponding author Phone: +82-2-970-6740 E-mail:
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16
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Common pathogen-associated molecular patterns induce the hyper-activation of NLRP3 inflammasome in circulating B lymphocytes of HIV-infected individuals. AIDS 2021; 35:899-910. [PMID: 33821820 DOI: 10.1097/qad.0000000000002833] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Despite the antiretroviral treatment, people with HIV (PWH) still experience systemic chronic inflammation and immune-senescence, which represent risk factors for severe comorbidities and inefficient response to pathogens and vaccines. Given the dysregulation of NLRP3 inflammasome in PWH and the recently demonstrated role played by NLRP3 in B lymphocytes, we hypothesized that NLRP3 dysregulation in B cells can contribute to chronic inflammation and humoral dysfunction in PWH. DESIGN NLRP3 inflammasome activation was evaluated in B lymphocytes and correlated with antibodies production and immunization response in PWH. METHODS NLRP3 inflammasome activation was compared in B lymphocytes isolated from PWH and healthy donors, in resting and stimulated conditions. Functional polymorphic variants in NLRP3 and IL1B genes were analysed in a cohort of PWH submitted to anti-HBV vaccine to assess the effect of NLRP3 inflammasome on humoral response. RESULTS The NLRP3 inflammasome activation in response to common PAMPs (LPS, ß-glucan) resulted higher in B lymphocytes of PWH than in HD. CpG-induced IgM secretion was also increased in B cells of PWH. NLRP3, but not IL1B, gain-of-function polymorphism associated to anti-HBs levels. CONCLUSION These data reveal the dysregulation of NLRP3 inflammasome in B lymphocytes of PWH. Differently from myeloid compartment, which present an exhausted NLRP3 inflammasome, the complex appears to be hyper-activated in B cells of PWH, likely contributing to chronic inflammation and affecting humoral response.
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17
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Friedrich B, Auger JP, Dutz S, Cicha I, Schreiber E, Band J, Boccacccini AR, Krönke G, Alexiou C, Tietze R. Hydroxyapatite-Coated SPIONs and Their Influence on Cytokine Release. Int J Mol Sci 2021; 22:ijms22084143. [PMID: 33923700 PMCID: PMC8072956 DOI: 10.3390/ijms22084143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/06/2021] [Accepted: 04/14/2021] [Indexed: 12/30/2022] Open
Abstract
Hydroxyapatite- or calcium phosphate-coated iron oxide nanoparticles have a high potential for use in many biomedical applications. In this study, a co-precipitation method for the synthesis of hydroxyapatite-coated nanoparticles (SPIONHAp), was used. The produced nanoparticles have been characterized by dynamic light scattering, X-ray diffraction, vibrating sample magnetometry, Fourier transform infrared spectrometry, atomic emission spectroscopy, scanning electron microscopy, transmission electron microscopy, selected area diffraction, and energy-dispersive X-ray spectroscopy. The results showed a successful synthesis of 190 nm sized particles and their stable coating, resulting in SPIONHAp. Potential cytotoxic effects of SPIONHAp on EL4, THP-1, and Jurkat cells were tested, showing only a minor effect on cell viability at the highest tested concentration (400 µg Fe/mL). The results further showed that hydroxyapatite-coated SPIONs can induce minor TNF-α and IL-6 release by murine macrophages at a concentration of 100 µg Fe/mL. To investigate if and how such particles interact with other substances that modulate the immune response, SPIONHAp-treated macrophages were incubated with LPS (lipopolysaccharides) and dexamethasone. We found that cytokine release in response to these potent pro- and anti-inflammatory agents was modulated in the presence of SPIONHAp. Knowledge of this behavior is important for the management of inflammatory processes following in vivo applications of this type of SPIONs.
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Affiliation(s)
- Bernhard Friedrich
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, Universitätsklinikum Erlangen, 91054 Erlangen, Germany; (B.F.); (I.C.); (E.S.); (J.B.); (C.A.)
| | - Jean-Philippe Auger
- Department of Internal Medicine 3—Rheumatology and Immunology, Universitätsklinikum Erlangen and Friedrich-Alexander University Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (J.-P.A.); (G.K.)
| | - Silvio Dutz
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, 98693 Ilmenau, Germany;
| | - Iwona Cicha
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, Universitätsklinikum Erlangen, 91054 Erlangen, Germany; (B.F.); (I.C.); (E.S.); (J.B.); (C.A.)
| | - Eveline Schreiber
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, Universitätsklinikum Erlangen, 91054 Erlangen, Germany; (B.F.); (I.C.); (E.S.); (J.B.); (C.A.)
| | - Julia Band
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, Universitätsklinikum Erlangen, 91054 Erlangen, Germany; (B.F.); (I.C.); (E.S.); (J.B.); (C.A.)
| | - Aldo R. Boccacccini
- Institute of Biomaterials, Department of Materials Science and Engineering, FAU, 91058 Erlangen, Germany;
| | - Gerhard Krönke
- Department of Internal Medicine 3—Rheumatology and Immunology, Universitätsklinikum Erlangen and Friedrich-Alexander University Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (J.-P.A.); (G.K.)
| | - Christoph Alexiou
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, Universitätsklinikum Erlangen, 91054 Erlangen, Germany; (B.F.); (I.C.); (E.S.); (J.B.); (C.A.)
| | - Rainer Tietze
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-Professorship, Universitätsklinikum Erlangen, 91054 Erlangen, Germany; (B.F.); (I.C.); (E.S.); (J.B.); (C.A.)
- Correspondence:
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18
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Nguyen TM, Mandiki SNM, Salomon JMAJ, Baruti JB, Thi NTT, Nguyen TH, Nhu TQ, Kestemont P. Pro- and anti-inflammatory responses of common carp Cyprinus carpio head kidney leukocytes to E.coli LPS as modified by different dietary plant oils. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 114:103828. [PMID: 32798494 DOI: 10.1016/j.dci.2020.103828] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/06/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
Dietary lipids could modify fatty acid (FA) composition in fish tissues. Long chain polyunsaturated fatty acids (LC-PUFAs) such as arachidonic acid (ARA), eicosapentaneoic acid (EPA) and docosahexaenoic acid (DHA) are able to modulate the immune status in fish through an inflammatory process but their availability may be limited when fish are exclusively fed plant oils. This study was conducted to evaluate how to maximise the utilisation of dietary plant oil for an efficient inflammatory response in common carp head kidney leukocytes (HKLs) exposed to a gram-negative bacterial endotoxin, Escherichia coli lipopolysaccharides (LPS). HKLs were isolated from fish fed cod liver oil (CLO), linseed oil (LO), sesame oil (SO) a blend of SO and LO (SLO, v:v 1:1), and these plant oil diets supplemented with DHA (SO + DHA, SOD) or ARA (LO + ARA, LOA) for 6 weeks. Cells were then exposed to LPS at a dose of 10 μg/mL for 4 and 24 h. Peroxidase activity, total Ig, and NO levels were measured in the culture medium, while cells were used for expression analyses of candidate genes in pattern recognition (tlr-4), eicosanoid metabolism (pge2, 5-lox), pro-inflammatory (il-1, il-6, il-8, tnf-α, nf-kb, inos, cxc), anti-inflammatory (il-10, nf-kbi, tgf-β1) responses, and cytoprotective (gpx-1, prdx-3) processes. Results showed that LPS induced significantly inflammatory responses, evidenced by a high level of almost all the targeted humoral immune parameters and/or gene expression. Expression of inflammatory cytokines and other inflammatory mediators was upregulated after 4 h-LPS exposure and reverted to basal levels after 24 h. HKLs from fish fed SLO, LOA, or SOD diet exhibited a more efficient regulation of acute inflammatory processes than those fed CLO diet. The results indicate that the immune competence of fish fed plant oil mixture was comparable to the one of fish fed fish oil diet. Moreover, the supplementation of ARA or DHA induced similar immunomodulation in common carp.
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Affiliation(s)
- Thi Mai Nguyen
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium; Faculty of Fisheries, Vietnam National University of Agriculture, Hanoi, Viet Nam.
| | - Syaghalirwa N M Mandiki
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium
| | - Jean M A J Salomon
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium
| | - Joel Bondekwe Baruti
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium
| | - Nang Thu Tran Thi
- Faculty of Fisheries, Vietnam National University of Agriculture, Hanoi, Viet Nam
| | - Thu Hang Nguyen
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium; Pharmacology Department, Hanoi University of Pharmacy, Hanoi, Viet Nam
| | - Truong Quynh Nhu
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium; College of Aquaculture and Fisheries, Cantho University, Campus II, Cantho City, Viet Nam
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology (URBE), Institute of Life, Earth and Environment (ILEE), University of Namur, Namur, Belgium.
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19
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Increased Expression of TLR4 in Circulating CD4+T Cells in Patients with Allergic Conjunctivitis and In Vitro Attenuation of Th2 Inflammatory Response by Alpha-MSH. Int J Mol Sci 2020; 21:ijms21217861. [PMID: 33114004 PMCID: PMC7672642 DOI: 10.3390/ijms21217861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/17/2020] [Accepted: 10/21/2020] [Indexed: 12/24/2022] Open
Abstract
Ocular allergic diseases are frequently seen in ophthalmological clinical practice. Immunological damage is mediated by a local Th2 inflammatory microenvironment, accompanied by changes in circulating cell subsets, with more effector cells and fewer T regulatory cells (Tregs). This study aimed to evaluate the involvement of toll-like receptor 4 (TLR4) and α-melanocyte stimulating hormone (α-MSH) in the immune regulation associated with perennial allergic conjunctivitis (PAC). We performed an Ag-specific stimulation during 72 h of culturing with or without lipopolysaccharide (LPS) or α-MSH in peripheral blood mononuclear cells (PBMC), analyzing the cell subsets and cytokines induced by the stimuli. We also determined α-MSH in tear samples from healthy donors (HD) or PAC patients. Our findings demonstrate an immunological dysregulation characterized by an increased frequency of CD4+TLR4+ in the PBMC of patients with PAC, compared to HD. Most of these CD4+TLR4+ cells were also CD25+, and when α-MSH was added to the culture, the percentage of CD4+CD25+FoxP3+ increased significantly, while the percentage of CD69+ cells and cytokines IL-4 and IL-6 were significantly decreased. In tears, we found an increased concentration of α-MSH in PAC patients, compared with HD. These findings indicate a novel mechanism involved in controlling ocular allergic diseases, in which α-MSH diminishes the concentration of IL-6 and IL-4, restoring the frequency of Tregs and down-regulating CD4 activation. Moreover, we demonstrated the involvement of CD4+TLR4+ cells as an effector cell subset in ocular allergy.
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Brooks D, Barr LC, Wiscombe S, McAuley DF, Simpson AJ, Rostron AJ. Human lipopolysaccharide models provide mechanistic and therapeutic insights into systemic and pulmonary inflammation. Eur Respir J 2020; 56:13993003.01298-2019. [PMID: 32299854 DOI: 10.1183/13993003.01298-2019] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 03/18/2020] [Indexed: 02/07/2023]
Abstract
Inflammation is a key feature in the pathogenesis of sepsis and acute respiratory distress syndrome (ARDS). Sepsis and ARDS continue to be associated with high mortality. A key contributory factor is the rudimentary understanding of the early events in pulmonary and systemic inflammation in humans, which are difficult to study in clinical practice, as they precede the patient's presentation to medical services. Lipopolysaccharide (LPS), a constituent of the outer membrane of Gram-negative bacteria, is a trigger of inflammation and the dysregulated host response in sepsis. Human LPS models deliver a small quantity of LPS to healthy volunteers, triggering an inflammatory response and providing a window to study early inflammation in humans. This allows biological/mechanistic insights to be made and new therapeutic strategies to be tested in a controlled, reproducible environment from a defined point in time. We review the use of human LPS models, focussing on the underlying mechanistic insights that have been gained by studying the response to intravenous and pulmonary LPS challenge. We discuss variables that may influence the response to LPS before considering factors that should be considered when designing future human LPS studies.
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Affiliation(s)
- Daniel Brooks
- Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - Laura C Barr
- Dept of Respiratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Sarah Wiscombe
- Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - Daniel F McAuley
- School of Medicine, Dentistry and Biomedical Sciences, Institute for Health Sciences, Wellcome-Wolfson Institute for Experimental Medicine, Belfast, UK
| | - A John Simpson
- Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - Anthony J Rostron
- Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
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21
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Bursley JK, Rockwell CE. Nrf2-dependent and -independent effects of tBHQ in activated murine B cells. Food Chem Toxicol 2020; 145:111595. [PMID: 32702509 DOI: 10.1016/j.fct.2020.111595] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 12/30/2022]
Abstract
Nrf2 is a transcription factor that regulates cytoprotective cellular responses to oxidative and electrophilic stress. Nrf2 is potently activated by the synthetic food additive, tert-butylhydroquinone (tBHQ), which is widely used as a preservative in oils and processed foods. Previously published studies have established that tBHQ has numerous effects on T cell function. The purpose of this study was to determine the effect of tBHQ on B cell function and the role of Nrf2 in these effects. Specifically, we investigated T cell-independent B cell activation, differentiation, and IgM antibody production. Murine wild-type and Nrf2-null splenocytes were isolated, treated with tBHQ (0.25-2.5 μm), and activated by lipopolysaccharide (LPS), a T cell-independent B cell activator. Our findings indicate that tBHQ significantly enhanced IgM production in activated wild-type, but not Nrf2-null, B cells, suggesting this effect is Nrf2-dependent. In contrast, tBHQ significantly decreased the induction of CD69, CD25, CD22, and CD138 in both wild-type and Nrf2-null splenocytes. These findings indicate that the tBHQ-mediated increase in IgM is Nrf2-dependent, whereas the inhibition of CD69, CD25, CD22 and CD138 is Nrf2-independent. Overall, this study demonstrates that in addition to its effects on T cells, tBHQ also has potent effects on T cell-independent B cell function.
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Affiliation(s)
- Jenna K Bursley
- Department of Pharmacology & Toxicology, Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA
| | - Cheryl E Rockwell
- Department of Pharmacology & Toxicology, Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA.
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Lin TL, Shu CC, Chen YM, Lu JJ, Wu TS, Lai WF, Tzeng CM, Lai HC, Lu CC. Like Cures Like: Pharmacological Activity of Anti-Inflammatory Lipopolysaccharides From Gut Microbiome. Front Pharmacol 2020; 11:554. [PMID: 32425790 PMCID: PMC7212368 DOI: 10.3389/fphar.2020.00554] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022] Open
Abstract
Gut microbiome maintains local gut integrity and systemic host homeostasis, where optimal control of intestinal lipopolysaccharides (LPS) activity may play an important role. LPS mainly produced from gut microbiota are a group of lipid-polysaccharide chemical complexes existing in the outer membrane of Gram-negative bacteria. Traditionally, LPS mostly produced from Proteobacteria are well known for their ability in inducing strong inflammatory responses (proinflammatory LPS, abbreviated as P-LPS), leading to septic shock or even death in animals and humans. Although the basic structures and chemical properties of P-LPS derived from different bacterial species generally show similarity, subtle and differential immune activation activities are observed. On the other hand, frequently ignored, a group of LPS molecules mainly produced by certain microbiota bacteria such as Bacteroidetes show blunt or even antagonistic activity in initiating pro-inflammatory responses (anti-inflammatory LPS, abbreviated as A-LPS). In this review, besides the immune activation properties of P-LPS, we also focus on the description of anti-inflammatory effects of A-LPS, and their potential antagonistic mechanism. We address the possibility of using native or engineered A-LPS for immune modulation in prevention or even treatment of P-LPS induced chronic inflammation related diseases. Understanding the exquisite interactive relationship between structure-activity correlation of P- and A-LPS not only contributes to molecular understanding of immunomodulation and homeostasis, but also re-animates the development of novel LPS-based pharmacological strategy for prevention and therapy of chronic inflammation related diseases.
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Affiliation(s)
- Tzu-Lung Lin
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Microbiota Research Center and Emerging Viral Infections Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Chin-Chung Shu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Young-Mao Chen
- Bachelor Degree Program in Marine Biotechnology, College of Life Sciences, National Taiwan Ocean University, Keelung, Taiwan
| | - Jang-Jih Lu
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ting-Shu Wu
- Division of Infectious Diseases, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wei-Fan Lai
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chi-Meng Tzeng
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Hsin-Chih Lai
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Microbiota Research Center and Emerging Viral Infections Research Center, Chang Gung University, Taoyuan, Taiwan.,Central Research Laboratory, Xiamen Chang Gung Allergology Consortium, Xiamen Chang Gung Hospital, Xiamen, China.,Research Center for Chinese Herbal Medicine and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Chia-Chen Lu
- Department of Chest Medicine, Internal Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan.,Department of Respiratory Therapy, Fu Jen Catholic University, New Taipei City, Taiwan
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23
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Gao X, Wang H, Chen Z, Zhou P, Yu D. An optimized method to differentiate mouse follicular helper T cells in vitro. Cell Mol Immunol 2019; 17:779-781. [PMID: 31754234 DOI: 10.1038/s41423-019-0329-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 10/29/2019] [Indexed: 01/10/2023] Open
Affiliation(s)
- Xin Gao
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Hao Wang
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Zhian Chen
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Pengcheng Zhou
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Di Yu
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia. .,China-Australia Centre for Personalized Immunology, Shanghai Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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24
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Yang Q, Huang M, Cai X, Jia L, Wang S. Investigation on activation in RAW264.7 macrophage cells and protection in cyclophosphamide-treated mice of Pseudostellaria heterophylla protein hydrolysate. Food Chem Toxicol 2019; 134:110816. [PMID: 31518602 DOI: 10.1016/j.fct.2019.110816] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/02/2019] [Accepted: 09/09/2019] [Indexed: 01/07/2023]
Abstract
Our previous study has demonstrated that Pseudostellaria heterophylla protein hydrolysate (PPH) has immunomodulatory activity on murine spleen lymphocytes. The aim of this study was to investigate the excitation of PPH in RAW264.7 macrophage cells and the protective effect in cyclophosphamide (CTX)-treated mice. The results showed PPH of 50 μg/mL could stimulate macrophages resulting in significant promotions of nitric oxide (NO) production, endocytosis and reactive oxygen species formation. Meanwhile, enzyme-linked immunosorbent assay (ELISA) revealed that the levels of tumor necrosis factor-α and interleukin-10 were significantly upregulated by PPH. Furthermore, 50 mg/kg per day PPH restored the T lymphocyte proliferation and natural killer cell activity, and increased NO production and pinocytosis of peritoneal macrophages in CTX-treated mice. These findings indicate PPH plays a crucial role in RAW264.7 macrophage cells activation and in the protection against immunosuppression in CTX-treated mice and could be used as a potential immunostimulant agent.
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Affiliation(s)
- Qian Yang
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China; College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Muchen Huang
- College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Xixi Cai
- College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Lee Jia
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Shaoyun Wang
- College of Biological Science and Technology, Fuzhou University, Fuzhou, Fujian, 350108, China.
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Hay AN, Potter A, Kasmark L, Zhu J, Leeth CM. RAPID COMMUNICATION: TLR4 expressed but with reduced functionality on equine B lymphocytes. J Anim Sci 2019; 97:2175-2180. [PMID: 30901382 DOI: 10.1093/jas/skz074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 02/18/2019] [Indexed: 11/14/2022] Open
Abstract
Varying susceptibility exists among mammalian species to the development of potentially fatal endotoxemia due to gram-negative bacteria molecular component, lipopolysaccharide (LPS). Toll-like receptor 4 (TLR4) is responsible for LPS-associated immune response and is expressed on numerous immune cells including B lymphocytes. TLR4 is expressed in a functional form on mouse B lymphocytes, a species much less susceptible to endotoxemia compared with humans who are highly sensitive to endotoxin. Humans possess B lymphocytes that are not responsive to LPS. Likewise, horses are highly susceptible to endotoxemia but the expression and function of TLR4 on horse B lymphocytes is not known. Colic, the major cause of mortality in horses, is often complicated by resultant endotoxemia. The objective of this study was to determine the expression and function of TLR4 on equine B lymphocytes. Lymphocytes were isolated from peripheral blood mononuclear cells that were collected from six horses, and the expression and function of TLR4 was analyzed for each horse. Flow cytometry results indicate TLR4 is expressed on horse B lymphocytes but stimulation with LPS did not alter this expression (P = 0.99) compared with unstimulated B lymphocytes after 24 h. After 72 h of in vitro LPS stimulation, analysis of cell proliferation dye by flow cytometry demonstrated that equine B lymphocytes did not proliferate, while mouse B lymphocytes predictably did. Furthermore, the total number of LPS stimulated equine B lymphocytes did not significantly differ from unstimulated cells after 72 h of culture (P = 0.92). Horse lymphocytes exhibited no significant differences in the measured TLR4 signaling pathway genes (TLR4, IL-10, IL-6, IFNβ, and TNFα) when expression was compared with LPS stimulated vs. unstimulated cells. In conclusion, while TLR4 is expressed on horse B lymphocytes, it appears minimally responsive to LPS in vitro, similar to results seen in human B lymphocytes. While further studies are still needed, our work reveals a potential link between B lymphocyte TLR4 expression and endotoxin sensitivity.
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Affiliation(s)
- Alayna N Hay
- Virginia Tech University, Animal and Poultry Science Department, Blacksburg, VA
| | - Ashley Potter
- Virginia Tech University, Animal and Poultry Science Department, Blacksburg, VA
| | - Leah Kasmark
- Virginia Tech University, Animal and Poultry Science Department, Blacksburg, VA
| | - Jing Zhu
- Virginia Tech University, Animal and Poultry Science Department, Blacksburg, VA
| | - Caroline M Leeth
- Virginia Tech University, Animal and Poultry Science Department, Blacksburg, VA
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Ginsenoside compound-K inhibits the activity of B cells through inducing IgD-B cell receptor endocytosis in mice with collagen-induced arthritis. Inflammopharmacology 2019; 27:845-856. [DOI: 10.1007/s10787-019-00608-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 05/25/2019] [Indexed: 01/06/2023]
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27
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Jędrzejewski T, Piotrowski J, Pawlikowska M, Wrotek S, Kozak W. Extract from Coriolus versicolor fungus partially prevents endotoxin tolerance development by maintaining febrile response and increasing IL-6 generation. J Therm Biol 2019; 83:69-79. [PMID: 31331527 DOI: 10.1016/j.jtherbio.2019.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 11/25/2022]
Abstract
Endotoxin tolerance is defined as a reduced endotoxin-induced fever following repeated injections of lipopolysaccharide (LPS). Clinical examples of endotoxin tolerance include sepsis or cystic fibrosis. This state is characterized by inhibition of pro-inflammatory cytokines production and decrease in nuclear factor-kappa B (NF-κB) activation. Extract from Coriolus versicolor (CV) fungus is classified as a biological response modifier, which exhibits various biological activities, including immunopotentiating properties. The aim of study was to examine the effect of CV extract injection on body core temperature of Wistar rats during LPS-induced endotoxin tolerance. Body temperature was measured using biotelemetry. CV extract was injected intraperitoneally (100 mg kg-1) 2 h prior to the first LPS peritoneal administration (50 μg/kg). Endotoxin tolerance was induced by three consecutive daily injections of LPS at the same dose. We also investigated the influence of CV extract pre-injection on the properties of peripheral blood mononuclear cells (PBMCs) isolated from LPS-treated rats in response to LPS stimulation ex vivo. PBMCs were isolated 2 h after the first LPS injection. After 24 h pre-incubation, the cells were stimulated with LPS (1 μg ml-1) for 4 h. Our results revealed that CV extract partially prevents endotoxin tolerance through maintaining febrile response in rats following consecutive exposure to LPS. This state was accompanied by the ability of PBMCs isolated from rats injected with CV extract and LPS to release larger amounts of interleukin 6 and greater NF-κB activation in response to LPS stimulation ex vivo compared with the cells derived from rats injected only with LPS. Data also showed that CV extract augmented mitogenic effect of LPS on PBMCs and caused increase in reactive oxygen species generation. We concluded that CV extract, by a modifying effect on body temperature during endotoxin tolerance, can be consider as the immunostimulating agent, which prevents the non-specific refractoriness described in patients with sepsis or ischemia.
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Affiliation(s)
- Tomasz Jędrzejewski
- Department of Immunology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, 1 Lwowska Street, Torun, 87-100, Poland.
| | - Jakub Piotrowski
- Department of Immunology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, 1 Lwowska Street, Torun, 87-100, Poland.
| | - Małgorzata Pawlikowska
- Department of Immunology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, 1 Lwowska Street, Torun, 87-100, Poland.
| | - Sylwia Wrotek
- Department of Immunology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, 1 Lwowska Street, Torun, 87-100, Poland.
| | - Wieslaw Kozak
- Department of Immunology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, 1 Lwowska Street, Torun, 87-100, Poland.
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28
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Moore DK, Motaung B, du Plessis N, Shabangu AN, Loxton AG. Isolation of B-cells using Miltenyi MACS bead isolation kits. PLoS One 2019; 14:e0213832. [PMID: 30893384 PMCID: PMC6426237 DOI: 10.1371/journal.pone.0213832] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 03/03/2019] [Indexed: 12/12/2022] Open
Abstract
This article describes the procedures used to isolate pure B-cell populations from whole blood using various Miltenyi magnetic-activated cell sorting (MACS) bead Isolation kits. Such populations are vital for studies investigating the functional capacity of B-cells, as the presence of other cell types may have indirect effects on B-cell function through cell-cell interactions or by secretion of several soluble molecules. B-cells can be isolated by two main approaches: 1) Negative selection—in which B-cells remain “untouched” in their native state; this is advantageous as it is likely that B-cells remain functionally unaltered by this process. 2) Positive selection–in which B-cells are labelled and actively removed from the sample. We used three Negative B-cell isolation kits as well as the Positive B-cell isolation kit from Miltenyi and compared the purity of each of the resulting B-cells fractions. Contamination of isolated B-cell fractions with platelets was the conclusive finding for all of the isolation techniques tested. These results illustrate the inefficiency of current available MACS B-cell isolation kits to produce pure B-cell populations, from which concrete findings can be made. As such we suggest cell sorting as the preferred method for isolating pure B-cells to be used for downstream functional assays.
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Affiliation(s)
- Dannielle K. Moore
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Centre for Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Bongani Motaung
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Centre for Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Nelita du Plessis
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Centre for Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Ayanda N. Shabangu
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Centre for Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - André G. Loxton
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Centre for Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- * E-mail:
| | - SU-IRG Consortium
- DST-NRF Centre of Excellence for Biomedical Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- South African Medical Research Council Centre for Tuberculosis Research; Stellenbosch University, Cape Town, South Africa
- Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Peñaranda MMD, Jensen I, Tollersrud LG, Bruun JA, Jørgensen JB. Profiling the Atlantic Salmon IgM + B Cell Surface Proteome: Novel Information on Teleost Fish B Cell Protein Repertoire and Identification of Potential B Cell Markers. Front Immunol 2019; 10:37. [PMID: 30761128 PMCID: PMC6362898 DOI: 10.3389/fimmu.2019.00037] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/08/2019] [Indexed: 01/04/2023] Open
Abstract
Fish immunology research is at a pivotal point with the increasing availability of functional immunoassays and major advances in omics approaches. However, studies on fish B cells and their distinct subsets remain a challenge due to the limited availability of differentially expressed surface markers. To address this constraint, cell surface proteome of Atlantic salmon IgM+ B cells were analyzed by mass spectrometry and compared to surface proteins detected from two adherent salmon head kidney cell lines, ASK and SSP-9. Out of 21 cluster of differentiation (CD) molecules identified on salmon IgM+ B cells, CD22 and CD79A were shortlisted as potential markers based on the reported B cell-specific surface expression of their mammalian homologs. Subsequent RT-qPCR analyses of flow cytometry-sorted subpopulations from head kidney leukocytes confirmed that both cd22 and cd79a genes were highly expressed in IgM+ lymphoid cells but were observed in barely detectable levels in IgM- non-lymphoid suspension and adherent cells. Similarly, significantly high cd22 and cd79a mRNA levels were observed in IgM+ or IgT+ lymphoid cells from the spleen and peritoneal cavity, but not in their corresponding IgM- IgT- non-lymphoid fractions. This suggests that the B cell restrictive expression of CD22 and CD79A extend down to the transcription level, which was consistent across different lymphoid compartments and immunoglobulin isotypes, thus strongly supporting the potential of CD22 and CD79A as pan-B cell markers for salmon. In addition, this study provides novel information on the salmon B cell surface protein repertoire, as well as insights on B cell evolution. Further investigation of the identified salmon CD molecules, including development of immunological tools for detection, will help advance our understanding of the dynamics of salmon B cell responses such as during infection, vaccination, or immunostimulation.
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Affiliation(s)
- Ma Michelle D Peñaranda
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, Tromsø, Norway
| | - Ingvill Jensen
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, Tromsø, Norway
| | - Linn G Tollersrud
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, Tromsø, Norway
| | - Jack-Ansgar Bruun
- Tromsø University Proteomics Platform, Institute of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway
| | - Jorunn B Jørgensen
- The Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, Tromsø, Norway
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30
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Chen XX, Tang L, Han ZH, Wang WJ, Meng JG. Coculture with bone marrow‑derived mesenchymal stem cells attenuates inflammation and apoptosis in lipopolysaccharide‑stimulated alveolar epithelial cells via enhanced secretion of keratinocyte growth factor and angiopoietin‑1 modulating the Toll‑like receptor‑4 signal pathway. Mol Med Rep 2019; 19:1891-1902. [PMID: 30628710 DOI: 10.3892/mmr.2019.9836] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 12/11/2018] [Indexed: 11/06/2022] Open
Abstract
Acute lung injury (ALI) is a common, costly and potentially lethal disease with characteristics of alveolar‑capillary membrane disruption, pulmonary edema and impaired gas exchange due to increased apoptosis and pulmonary inflammation. There is no effective and specific therapy for ALI; however, mesenchymal stem cells (MSCs) have been demonstrated to be a potential option. Lipopolysaccharide (LPS) is a highly proinflammatory molecule that is used to mimic an in vivo inflammatory and damaged state in vitro. The present study investigated the effect of bone marrow‑derived MSCs on an LPS‑induced alveolar epithelial cell (A549 cell line) injury and its underlying mechanisms by a Transwell system. It was identified that a high LPS concentration caused a decrease in cell viability, increases in apoptosis, inflammatory cytokine release and NF‑κB activity, disruption of the caspase‑3/Bcl‑2 ratio, upregulation of Toll‑like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88) and toll‑interleukin‑1 receptor domain‑containing adaptor inducing interferon (TRIF) expression, and facilitation of TLR4/MyD88 and TLR4/TRIF complex formation in A549 cells. Coculture with MSCs attenuated all of these activities induced by LPS in A549 cells. In addition, an increased level of keratinocyte growth factor (KGF) and angiopoietin‑1 (ANGPT1) secretion from MSCs was observed under inflammatory stimulation. KGF and/or ANGPT1 neutralizing antibodies diminished the beneficial effect of MSC conditioned medium. These data suggest that MSCs alleviate inflammatory damage and cellular apoptosis induced by LPS in A549 cells by modulating TLR4 signals. These changes may be partly associated with an increased secretion of KGF and ANGPT1 from MSCs under inflammatory conditions. These data provide the basis for development of MSC‑based therapies for ALI.
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Affiliation(s)
- Xu-Xin Chen
- Department of Respiratory Medicine, Navy General Hospital of The People's Liberation Army, Beijing 100037, P.R. China
| | - Lu Tang
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan 430100, P.R. China
| | - Zhi-Hai Han
- Department of Respiratory Medicine, Navy General Hospital of The People's Liberation Army, Beijing 100037, P.R. China
| | - Wen-Jing Wang
- Cardiothoracic Surgery Intensive Care Unit, Anqing Municipal Hospital, Anqing, Anhui 246003, P.R. China
| | - Ji-Guang Meng
- Department of Respiratory Medicine, Navy General Hospital of The People's Liberation Army, Beijing 100037, P.R. China
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Morris G, Berk M, Maes M, Puri BK. Could Alzheimer's Disease Originate in the Periphery and If So How So? Mol Neurobiol 2019; 56:406-434. [PMID: 29705945 PMCID: PMC6372984 DOI: 10.1007/s12035-018-1092-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 04/17/2018] [Indexed: 12/11/2022]
Abstract
The classical amyloid cascade model for Alzheimer's disease (AD) has been challenged by several findings. Here, an alternative molecular neurobiological model is proposed. It is shown that the presence of the APOE ε4 allele, altered miRNA expression and epigenetic dysregulation in the promoter region and exon 1 of TREM2, as well as ANK1 hypermethylation and altered levels of histone post-translational methylation leading to increased transcription of TNFA, could variously explain increased levels of peripheral and central inflammation found in AD. In particular, as a result of increased activity of triggering receptor expressed on myeloid cells 2 (TREM-2), the presence of the apolipoprotein E4 (ApoE4) isoform, and changes in ANK1 expression, with subsequent changes in miR-486 leading to altered levels of protein kinase B (Akt), mechanistic (previously mammalian) target of rapamycin (mTOR) and signal transducer and activator of transcription 3 (STAT3), all of which play major roles in microglial activation, proliferation and survival, there is activation of microglia, leading to the subsequent (further) production of cytokines, chemokines, nitric oxide, prostaglandins, reactive oxygen species, inducible nitric oxide synthase and cyclooxygenase-2, and other mediators of inflammation and neurotoxicity. These changes are associated with the development of amyloid and tau pathology, mitochondrial dysfunction (including impaired activity of the electron transport chain, depleted basal mitochondrial potential and oxidative damage to key tricarboxylic acid enzymes), synaptic dysfunction, altered glycogen synthase kinase-3 (GSK-3) activity, mTOR activation, impairment of autophagy, compromised ubiquitin-proteasome system, iron dyshomeostasis, changes in APP translation, amyloid plaque formation, tau hyperphosphorylation and neurofibrillary tangle formation.
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Affiliation(s)
- Gerwyn Morris
- IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, P.O. Box 291, Geelong, Victoria, Australia
| | - Michael Berk
- IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, P.O. Box 291, Geelong, Victoria, Australia
- Department of Psychiatry, Level 1 North, Main Block, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
- Florey Institute for Neuroscience and Mental Health, Kenneth Myer Building, University of Melbourne, 30 Royal Parade, Parkville, Victoria, Australia
- Orygen, The National Centre of Excellence in Youth Mental Health, 35 Poplar Rd, Parkville, Victoria, Australia
| | - Michael Maes
- IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, P.O. Box 291, Geelong, Victoria, Australia
- Department of Psychiatry, Chulalongkorn University, Bangkok, Thailand
| | - Basant K Puri
- Department of Medicine, Hammersmith Hospital, Imperial College London, London, UK.
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Xu Z, Zhou X, Li H, Chen Q, Chen G. Identification of the key genes and long non‑coding RNAs in ankylosing spondylitis using RNA sequencing. Int J Mol Med 2018; 43:1179-1192. [PMID: 30592273 PMCID: PMC6365023 DOI: 10.3892/ijmm.2018.4038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 12/07/2018] [Indexed: 12/13/2022] Open
Abstract
Ankylosing spondylitis (AS) is an insidious and debilitating form of arthritis that involves the axial skeleton, and its etiology and pathogenesis remain unclear. In the present study, three patients with AS and three normal controls from our hospital were enrolled. RNA sequencing and bioinformatics analysis were performed in order to identify the differentially expressed (DE) mRNAs (DEmRNAs) and DE long non‑coding RNAs (DElncRNAs) between the patients with AS and normal controls. Construction of an AS‑specific protein‑protein interaction network, a weighted DElncRNA‑DEmRNA co‑expression network and functional annotation of the DEmRNAs co‑expressed with DElncRNAs was performed. Nearby cis‑targeted DEmRNAs or DElncRNAs were identified by searching for DEmRNAs that were transcribed within 100‑kb up‑ or downstream of DElncRNAs. Based on the Gene Expression Omnibus datasets GSE25101 and GSE73754, the expression of selected DEmRNAs and DElncRNAs were verified using published RNA sequencing data from blood samples, and receiver operating characteristic analysis of selected DEmRNAs was performed. Compared with the normal controls, 1,072 DEmRNAs and 372 DElncRNAs in the patients with AS were identified. Caspase recruitment domain family member 11 and DNA methyltransferase 1 have great diagnostic value for AS. MSTRG.8559 and LINC00987 were also identified as two hub DElncRNAs. The T‑cell receptor signaling pathway was a significantly enriched pathway of the DEmRNAs co‑expressed with DElncRNAs in patients with AS. In conclusion, the present study identified the key DEmRNAs and DElncRNAs in AS, which provides novel information for understanding the pathogenesis of AS and developing potential biomarkers for AS.
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Affiliation(s)
- Zhengkuan Xu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Xiaopeng Zhou
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Hao Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Qixin Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
| | - Gang Chen
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
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Lin P, Ding B, Wu Y, Dong K, Li Q. Mitogen-stimulated cell proliferation and cytokine production in major depressive disorder patients. BMC Psychiatry 2018; 18:330. [PMID: 30314474 PMCID: PMC6186084 DOI: 10.1186/s12888-018-1906-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 09/24/2018] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is related to human's immune status, and immunological indicators such as mitogen stimulated cell proliferation and cytokines may become candidate biomarkers for disease diagnosis. METHODS One hundred diagnosed major depressive disorder subjects and 100 health controls were enrolled in this study. Phytohaemagglutinin and lipopolysaccharide stimulated cell proliferations and cytokine concentrations were detected in peripheral blood mononuclear cells from both groups. The corresponding stimulated responses were conducted and confirmed in chronic unpredictable mild stress (CUMS) mice. RESULTS Compared to the people in control group, there were lower cell proliferations and lower TNF-α produced in lipopolysaccharide stimulated peripheral blood mononuclear cells in depression patients, lower IL-2 and IL-10 produced in phytohaemagglutinin stimulated peripheral blood mononuclear cells in depression patients, higher IL-6, IL-10 and lower IL-2 secretions were detected in peripheral plasma in depression patients. In CUMS mice we found lower splenocyte proliferations, lower IL-1α productions and higher IL-6 secretions in lipopolysaccharide stimulated splenocytes. It seems lipopolysaccharide stimulated cell proliferation activities were inhibited in depressive states. CONCLUSIONS Lower lipopolysaccharide stimulated cell proliferation and phytohaemagglutinin stimulated or plasma cytokine IL-2 decreases should be potential monitoring indices in the depressive state assessment for major depressive disorder patients.
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Affiliation(s)
- Ping Lin
- 0000 0004 0368 8293grid.16821.3cDepartment of Medical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030 China ,0000 0004 0368 8293grid.16821.3cDepartment of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Bingyu Ding
- 0000 0004 0368 8293grid.16821.3cDepartment of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Yunqiang Wu
- 0000 0004 0368 8293grid.16821.3cDepartment of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Ke Dong
- 0000 0004 0368 8293grid.16821.3cDepartment of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025 China
| | - Qingtian Li
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Delahaye LB, Bloomer RJ, Butawan MB, Wyman JM, Hill JL, Lee HW, Liu AC, McAllan L, Han JC, van der Merwe M. Time-restricted feeding of a high-fat diet in male C57BL/6 mice reduces adiposity but does not protect against increased systemic inflammation. Appl Physiol Nutr Metab 2018; 43:1033-1042. [PMID: 29717885 DOI: 10.1139/apnm-2017-0706] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2023]
Abstract
Time-restricted feeding (TRF) limits the duration of food availability without altering diet composition and can combat obesity in humans and mice. For this study we evaluated the effect of timing of food access during a TRF protocol on weight gain, adiposity, and inflammation. Young male C57BL/6 mice were placed on a high-fat (HF) diet (45% fat) for 8 weeks. Food access was unrestricted (HF) or restricted to 6 h per day, either for the first half (HF-early) or the second half (HF-late) of the active phase to resemble a window of time for food consumption early or late in the day in a human population. Weight, obesity-associated parameters, and inflammation were measured. TRF reduced weight gain over the 8-week period in mice consuming the same high-fat diet. Consistent with decreased weight gain in the TRF groups, body fat percentage, liver triglycerides, and plasma leptin and cholesterol levels were reduced. Adipose tissue inflammation, measured by CD11b+F4/80+ macrophage infiltration, was reduced in both TRF groups, but systemic tumor necrosis factor-α was increased in all groups consuming the high-fat diet. The HF-late group gained more weight than the HF-early group and had increased insulin resistance, while the HF-early group was protected. Therefore, a TRF protocol is beneficial for weight management when a high-fat diet is consumed, with food consumption earlier in the day showing greater health benefits. However, increased inflammatory markers in the TRF groups suggest that diet components can still increase inflammation even in the absence of overt obesity.
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Affiliation(s)
- Laura B Delahaye
- a School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Richard J Bloomer
- a School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Matthew B Butawan
- a School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Jacqueline M Wyman
- a School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Jessica L Hill
- a School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Harold W Lee
- a School of Health Studies, University of Memphis, Memphis, TN 38152, USA
| | - Andrew C Liu
- b Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA
| | - Liam McAllan
- c Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA
| | - Joan C Han
- c Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN 38103, USA
- d Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
- e Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN 38103, USA
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Broad application and optimization of a single wash-step for integrated endotoxin depletion during protein purification. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1091:101-107. [DOI: 10.1016/j.jchromb.2018.05.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 05/05/2018] [Accepted: 05/19/2018] [Indexed: 11/18/2022]
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Adamo L, Staloch LJ, Rocha-Resende C, Matkovich SJ, Jiang W, Bajpai G, Weinheimer CJ, Kovacs A, Schilling JD, Barger PM, Bhattacharya D, Mann DL. Modulation of subsets of cardiac B lymphocytes improves cardiac function after acute injury. JCI Insight 2018; 3:120137. [PMID: 29875326 DOI: 10.1172/jci.insight.120137] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/24/2018] [Indexed: 12/11/2022] Open
Abstract
Despite the long-standing recognition that the immune response to acute myocardial injury contributes to adverse left ventricular (LV) remodeling, it has not been possible to effectively target this clinically. Using 2 different in vivo models of acute myocardial injury, we show that pirfenidone confers beneficial effects in the murine heart through an unexpected mechanism that depends on cardiac B lymphocytes. Naive hearts contained a large population of CD19+CD11b-CD23-CD21-IgD+IgMlo lymphocytes, and 2 smaller populations of CD19+CD11b+ B1a and B1b cells. In response to tissue injury, there was an increase in neutrophils, monocytes, macrophages, as well as an increase in CD19+ CD11b- B lymphocytes. Treatment with pirfenidone had no effect on the number of neutrophils, monocytes, or macrophages, but decreased CD19+CD11b- lymphocytes. B cell depletion abrogated the beneficial effects of pirfenidone. In vitro studies demonstrated that stimulation with lipopolysaccharide and extracts from necrotic cells activated CD19+ lymphocytes through a TIRAP-dependent pathway. Treatment with pirfenidone attenuated this activation of B cells. These findings reveal a previously unappreciated complexity of myocardial B lymphocytes within the inflammatory infiltrate triggered by cardiac injury and suggest that pirfenidone exerts beneficial effects in the heart through a unique mechanism that involves modulation of cardiac B lymphocytes.
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Affiliation(s)
- Luigi Adamo
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Lora J Staloch
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Cibele Rocha-Resende
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Scot J Matkovich
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Wenlong Jiang
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Geetika Bajpai
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Carla J Weinheimer
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Attila Kovacs
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Joel D Schilling
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Philip M Barger
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | | | - Douglas L Mann
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
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LPS-mediated cell surface expression of CD74 promotes the proliferation of B cells in response to MIF. Cell Signal 2018; 46:32-42. [DOI: 10.1016/j.cellsig.2018.02.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/16/2018] [Accepted: 02/18/2018] [Indexed: 01/21/2023]
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38
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Farokhi A, Heederik D, Smit LAM. Respiratory health effects of exposure to low levels of airborne endotoxin - a systematic review. Environ Health 2018; 17:14. [PMID: 29422043 PMCID: PMC5806377 DOI: 10.1186/s12940-018-0360-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/30/2018] [Indexed: 05/20/2023]
Abstract
BACKGROUND Elevated endotoxin levels have been measured in ambient air around livestock farms, which is a cause of concern for neighbouring residents. There is clear evidence that occupational exposure to high concentrations of airborne endotoxin causes respiratory inflammation, respiratory symptoms and lung function decline. However, health effects of exposure to low levels of endotoxin are less well described. The aim of this systematic review is to summarize published associations between exposure to relatively low levels of airborne endotoxin and respiratory health endpoints. METHODS Studies investigating respiratory effects of measured or modelled exposure to low levels of airborne endotoxin (average < 100 EU/m3) were eligible for inclusion. In total, 1362 articles were identified through a Pubmed database search, of which 31 articles were included in this review. Studies were included up to February 2017. Overview tables and forest plots were created, and study quality was assessed. RESULTS Twenty-two included studies had a cross-sectional design, others were designed as longitudinal observational (n = 7) or experimental (n = 2) studies. Most studies (n = 23) were conducted in an occupational setting, some involved domestic or experimental exposure. Several studies reported statistically significant effects of exposure to low levels of endotoxin on respiratory symptoms and lung function. However, considerable heterogeneity existed in the outcomes of the included studies and no overall estimate could be provided by meta-analysis to quantify the possible relationship. Instead, a best evidence synthesis was performed among studies examining the exposure-response relationship between endotoxin and respiratory outcomes. Significant exposure-response relationships between endotoxin and symptoms and FEV1 were shown in several studies, with no conflicting findings in the studies included in the best evidence synthesis. Significantly different effects of endotoxin exposure were also seen in vulnerable subgroups (atopics and patients with broncho-obstructive disease) and smokers. CONCLUSIONS Respiratory health effects of exposure to low levels of airborne endotoxin (< 100 EU/m3) seem plausible. Future studies are needed to investigate ambient exposure to endotoxin and potential respiratory health effects, especially in vulnerable subgroups of the population.
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Affiliation(s)
- Azadèh Farokhi
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.178, 3508TD, Utrecht, The Netherlands
| | - Dick Heederik
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.178, 3508TD, Utrecht, The Netherlands
| | - Lidwien A M Smit
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.178, 3508TD, Utrecht, The Netherlands.
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Wang N, McKell M, Dang A, Yamani A, Waggoner L, Vanoni S, Noah T, Wu D, Kordowski A, Köhl J, Hoebe K, Divanovic S, Hogan SP. Lipopolysaccharide suppresses IgE-mast cell-mediated reactions. Clin Exp Allergy 2017; 47:1574-1585. [PMID: 28833704 PMCID: PMC5865592 DOI: 10.1111/cea.13013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 07/11/2017] [Accepted: 08/02/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Clinical and experimental analyses have identified a central role for IgE/FcεRI/mast cells in promoting IgE-mediated anaphylaxis. Recent data from human studies suggest that bacterial infections can alter susceptibility to anaphylaxis. OBJECTIVE We examined the effect of LPS exposure on the induction of IgE-mast cell (MC) mediated reactions in mice. METHODS C57BL/6 WT, tlr4-/- and IL10-/- mice were exposed to LPS, and serum cytokines (TNF and IL-10) were measured. Mice were subsequently treated with anti-IgE, and the symptoms of passive IgE-mediated anaphylaxis, MC activation, Ca2+ -mobilization and the expression of FcεRI on peritoneal MCs were quantitated. RESULTS We show that LPS exposure of C57BL/6 WT mice constraints IgE-MC-mediated reactions. LPS-induced suppression of IgE-MC-mediated responses was TLR-4-dependent and associated with increased systemic IL-10 levels, decreased surface expression of FcεRI on MCs and loss of sensitivity to IgE activation. Notably, LPS-induced desensitization of MCs was short term with MC sensitivity to IgE reconstituted within 48 hours, which was associated with recapitulation of FcεRI expression on the MCs. Mechanistic analyses revealed a requirement for IL-10 in LPS-mediated decrease in MC FcεRI surface expression. CONCLUSIONS & CLINICAL RELEVANCE Collectively, these studies suggest that LPS-induced IL-10 promotes the down-regulation of MC surface FcεRI expression and leads to desensitization of mice to IgE-mediated reactions. These studies indicate that targeting of the LPS-TLR-4-IL-10 pathway may be used as a therapeutic approach to prevent adverse IgE-mediated reactions.
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Affiliation(s)
- Nianrong Wang
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
- Chongqing Health Center for Women and Children, Yuzhong Qu, 400065 Chongqing Shi China
| | - Melanie McKell
- Immunobiology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Andrew Dang
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Amnah Yamani
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Lisa Waggoner
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Simone Vanoni
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Taeko Noah
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - David Wu
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Anna Kordowski
- Institute for Systemic Inflammation Research, University of Lübeck, 23562 Lübeck, Germany
| | - Jörg Köhl
- Immunobiology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
- Institute for Systemic Inflammation Research, University of Lübeck, 23562 Lübeck, Germany
| | - Kasper Hoebe
- Immunobiology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Senad Divanovic
- Immunobiology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
| | - Simon P. Hogan
- Division of Allergy and Immunology, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45229
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40
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Zhang H, Wu MY, Guo DJ, Wan CW, Chan SW. Gui-ling-gao inhibits Concanavalin A-induced inflammation by suppressing the expressions of iNOS and proinflammatory cytokines in mice isolated splenocytes. J Food Biochem 2017. [DOI: 10.1111/jfbc.12367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huan Zhang
- Food Safety and Technology Research Centre; The Hong Kong Polytechnic University; Hong Kong China
| | - Min-Yi Wu
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation); Shenzhen China
| | - De-Jian Guo
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation); Shenzhen China
| | - Chun-Wai Wan
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Shun-Wan Chan
- Food Safety and Technology Research Centre; The Hong Kong Polytechnic University; Hong Kong China
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation); Shenzhen China
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
- Department of Food and Health Sciences, Faculty of Science and Technology; Technological and Higher Education Institute of Hong Kong; Hong Kong China
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41
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Arranz E, Guri A, Fornari T, Mendiola J, Reglero G, Corredig M. In vitro uptake and immune functionality of digested Rosemary extract delivered through food grade vehicles. Food Res Int 2017; 97:71-77. [DOI: 10.1016/j.foodres.2017.03.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/14/2017] [Accepted: 03/19/2017] [Indexed: 01/22/2023]
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42
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Talamini L, Violatto MB, Cai Q, Monopoli MP, Kantner K, Krpetić Ž, Perez-Potti A, Cookman J, Garry D, P Silveira C, Boselli L, Pelaz B, Serchi T, Cambier S, Gutleb AC, Feliu N, Yan Y, Salmona M, Parak WJ, Dawson KA, Bigini P. Influence of Size and Shape on the Anatomical Distribution of Endotoxin-Free Gold Nanoparticles. ACS NANO 2017; 11:5519-5529. [PMID: 28558193 DOI: 10.1021/acsnano.7b00497] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The transport and the delivery of drugs through nanocarriers is a great challenge of pharmacology. Since the production of liposomes to reduce the toxicity of doxorubicin in patients, a plethora of nanomaterials have been produced and characterized. Although it is widely known that elementary properties of nanomaterials influence their in vivo kinetics, such interaction is often poorly investigated in many preclinical studies. The present study aims to evaluate the actual effect of size and shape on the biodistribution of a set of gold nanoparticles (GNPs) after intravenous administration in mice. To this goal, quantitative data achieved by inductively coupled plasma mass spectrometry and observational results emerging from histochemistry (autometallography and enhanced dark-field hyperspectral microscopy) were combined. Since the immune system plays a role in bionano-interaction we used healthy immune-competent mice. To keep the immune surveillance on the physiological levels we synthesized endotoxin-free GNPs to be tested in specific pathogen-free animals. Our study mainly reveals that (a) the size and the shape greatly influence the kinetics of accumulation and excretion of GNPs in filter organs; (b) spherical and star-like GNPs showed the same percentage of accumulation, but a different localization in liver; (c) only star-like GNPs are able to accumulate in lung; (d) changes in the geometry did not improve the passage of the blood brain barrier. Overall, this study can be considered as a reliable starting point to drive the synthesis and the functionalization of potential candidates for theranostic purposes in many fields of research.
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Affiliation(s)
- Laura Talamini
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
| | - Martina B Violatto
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
| | - Qi Cai
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Marco P Monopoli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
- RCSI Pharmaceutical and Medical Chemistry, Royal College of Surgeons in Ireland , St. Stephen's Green, Dublin, Dublin 2, Ireland
| | - Karsten Kantner
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
| | - Željka Krpetić
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
- School of Environment and Life Sciences, University of Salford Manchester , Salford, M5 4WT, United Kingdom
| | - André Perez-Potti
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Jennifer Cookman
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - David Garry
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Camila P Silveira
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Luca Boselli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Beatriz Pelaz
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
| | - Tommaso Serchi
- Environmental Health group, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) , L-4362, Luxembourg
| | - Sébastien Cambier
- Environmental Health group, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) , L-4362, Luxembourg
| | - Arno C Gutleb
- Environmental Health group, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST) , L-4362, Luxembourg
| | - Neus Feliu
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
- Department of Laboratory Medicine (LABMED), Karolinska Institutet , Stockholm, 171 77, Sweden
- Medcom Advance S.A., Barcelona, 08840, Spain
| | - Yan Yan
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Mario Salmona
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
| | - Wolfgang J Parak
- Fachbereich Physik, Philipps University of Marburg , Marburg, 35037, Germany
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin , Dublin, Dublin 4, Ireland
| | - Paolo Bigini
- IRCCS- Istituto di Ricerche Farmacologiche Mario , Negri, Milan, 20156, Italy
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43
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Zhu X, Badawi M, Pomeroy S, Sutaria DS, Xie Z, Baek A, Jiang J, Elgamal OA, Mo X, Perle KL, Chalmers J, Schmittgen TD, Phelps MA. Comprehensive toxicity and immunogenicity studies reveal minimal effects in mice following sustained dosing of extracellular vesicles derived from HEK293T cells. J Extracell Vesicles 2017; 6:1324730. [PMID: 28717420 PMCID: PMC5505007 DOI: 10.1080/20013078.2017.1324730] [Citation(s) in RCA: 348] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) are under evaluation as therapeutics or as vehicles for drug delivery. Preclinical studies of EVs often use mice or other animal models to assess efficacy and disposition. However, as most EVs under evaluation are derived from human cells, they may elicit immune responses which may contribute to toxicities or enhanced EV clearance. Furthermore, EVs from different cell sources or EVs comprising various cargo may differ with respect to immunogenicity or toxicity. To assess EV-induced immune response and toxicity, we dosed C57BL/6 mice with EVs intravenously and intraperitoneally for 3 weeks. EVs were harvested from wild type or engineered HEK293T cells which were modified to produce EVs loaded with miR-199a-3p and chimeric proteins. Blood was collected to assess hematology, blood chemistry, and immune markers. Spleen cells were immunophenotyped, and tissues were harvested for gross necropsy and histopathological examination. No signs of toxicity were observed, and minimal evidence of changes in immune markers were noted in mice dosed with engineered, but not with wild type EVs. This study provides a framework for assessment of immunogenicity and toxicity that will be required as EVs from varying cell sources are tested within numerous animal models and eventually in humans.
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Affiliation(s)
- Xiaohua Zhu
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Mohamed Badawi
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Steven Pomeroy
- College of Pharmacy, University of Florida, Gainesville, FL, USA
| | | | - Zhiliang Xie
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Alice Baek
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Jinmai Jiang
- College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Ola A Elgamal
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Xiaokui Mo
- Department of Biostatistics, The Ohio State University, Columbus, OH, USA
| | - Krista La Perle
- College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Jeffrey Chalmers
- College of Engineering, The Ohio State University, Columbus, OH, USA
| | | | - Mitch A Phelps
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
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44
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Swanson-Mungerson M, Incrocci R, Subramaniam V, Williams P, Hall ML, Mayer AMS. Effects of cyanobacteria Oscillatoria sp. lipopolysaccharide on B cell activation and Toll-like receptor 4 signaling. Toxicol Lett 2017; 275:101-107. [PMID: 28499610 DOI: 10.1016/j.toxlet.2017.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 04/10/2017] [Accepted: 05/07/2017] [Indexed: 12/21/2022]
Abstract
Cyanobacteria ("blue-green algae"), such as Oscillatoria sp., are a ubiquitous group of bacteria found in freshwater systems worldwide that are linked to illness and in some cases, death among humans and animals. Exposure to cyanobacteria occurs via ingestion of contaminated water or food-products. Exposure of the gut to these bacteria also exposes their toxins, such as lipopolysaccharide (LPS), to B cells in the gut associated lymphoid tissue. However, the effect of Oscillatoria sp. LPS on B cell activation is unknown. To test the hypothesis that Oscillatoria sp. LPS exposure to murine B cells would result in B cell activation, murine B cells were incubated in the absence or presence of Oscillatoria sp. LPS or E. coli LPS as a positive control. The data indicate that Oscillatoria sp. LPS induces B cells to proliferate, upregulate MHC II and CD86, enhance antigen uptake and induce IgM production at low levels. Additional studies demonstrate that this low level of stimulation may be due to incomplete TLR4 signaling induced by Oscillatoria sp. LPS, since IRF-3 is not induced in B cells after stimulation with Oscillatoria sp. LPS. These findings have important implications for the mechanisms of toxicity of cyanobacteria in both humans and animals.
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Affiliation(s)
- Michelle Swanson-Mungerson
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, United States.
| | - Ryan Incrocci
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, United States
| | - Vijay Subramaniam
- Department of Biomedical Sciences, College of Health Sciences, Midwestern University, 555 31st Street, Downers Grove, IL 60515, United States
| | - Philip Williams
- Department of Chemistry, University of Hawaii-Manoa, 2545 McCarthy Mall, Honolulu, HI 96822, United States
| | - Mary L Hall
- Department of Pharmacology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31stStreet, Downers Grove, IL 60515, United States
| | - Alejandro M S Mayer
- Department of Pharmacology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31stStreet, Downers Grove, IL 60515, United States
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45
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Mohammed Ali HH, Drela N. Role of thymic B cells in the development of thymus-derived regulatory T cell in vitro. Immunol Lett 2017; 185:56-63. [DOI: 10.1016/j.imlet.2017.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/08/2017] [Indexed: 12/24/2022]
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46
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Liu Z, Hu Y, Yu P, Lin M, Huang G, Kawai T, Taubman M, Wang Z, Xiaozhe H. Toll-like receptor agonists Porphyromonas gingivalis LPS and CpG differentially regulate IL-10 competency and frequencies of mouse B10 cells. J Appl Oral Sci 2017; 25:90-100. [PMID: 28198981 PMCID: PMC5289405 DOI: 10.1590/1678-77572016-0277] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/20/2016] [Indexed: 02/08/2023] Open
Abstract
IL-10 expressing regulatory B cells (B10) play a key role in immune system balance by limiting excessive inflammatory responses. Effects of toll-like receptor signaling and co-stimulatory molecules on B10 activity during innate and adaptive immune responses are not fully understood.
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Affiliation(s)
- Zhiqiang Liu
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States.,Capital Medical University, Beijing ChaoYang Hospital, Department of Stomatology, Beijing, China
| | - Yang Hu
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States
| | - Pei Yu
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States.,Sichuan University, West China School of Stomatology, State Key Laboratory of Oral Diseases, Chengdu, Sichuan, China
| | - Mei Lin
- Capital Medical University, Beijing ChaoYang Hospital, Department of Stomatology, Beijing, China
| | - Grace Huang
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States
| | - Toshihisa Kawai
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States
| | - Martin Taubman
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States
| | - Zuomin Wang
- Capital Medical University, Beijing ChaoYang Hospital, Department of Stomatology, Beijing, China
| | - Han Xiaozhe
- The Forsyth Institute, Department of Immunology and Infectious Diseases, Cambridge, Massachusetts, United States
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47
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Lacasta D, Figueras L, Bueso J, De las Heras M, Ramos J, Ferrer L, González J, Ruíz de Arcaute M, Ortín A, Marteles D, Navarro T, Fernández A. Experimental infection with Salmonella enterica subsp. diarizonae serotype 61:k:1,5,(7) in sheep: Study of cell mediated immune response. Small Rumin Res 2017. [DOI: 10.1016/j.smallrumres.2017.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Kumar S, Adhikari A. Dose-dependent immunomodulating effects of endotoxin in allergic airway inflammation. Innate Immun 2017; 23:249-257. [PMID: 28142300 DOI: 10.1177/1753425917690443] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
How very high exposure levels to endotoxin in a farming environment provide protection against respiratory allergic symptoms and low-to-moderate levels of endotoxin in urban homes promote allergic response is unclear. Dose-specific bacterial endotoxin or LPS-induced tolerance mechanisms can affect lung inflammations, coupled with the Th2 immune responses. Here, we explored the effects of intranasal exposure of LPS at two different doses (based on occupational exposures during handling of agricultural wastes) in OVA-sensitized allergic wild type (WT) and TLR4-KO mice, particularly, with respect to Th2 cytokines and Tregs level. Low-dose LPS (100 ng) exposure prohibited airway tolerance and failed to generate T-cell-dependent protection against lung inflammations in allergic mice. Furthermore, low Tregs at the inflammatory site and induced Th2 cytokines, as well as IL-6 and IL-25, suggested that low-dose LPS might be associated with the suppression of tolerance mechanisms. In contrast, high-dose LPS (20 µg) favored the suppression of Th2 cytokines, IL-6 and IL-25, but failed to induce Th1 cytokines (e.g. IFN-γ). Our results suggest that low-dose LPS can enhance airway allergic inflammation through failing of antigen-dependent immune regulatory homeostasis. The exposure levels of LPS can determine the generation of inflammatory responses in airway allergy.
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Affiliation(s)
- Sudhir Kumar
- 1 Department of Environmental Health, University of Cincinnati, Cincinnati, OH, USA.,2 Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Atin Adhikari
- 3 Department of Epidemiology & Environmental Health Sciences, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, USA
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49
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Lee DI, Jang SK, Park DW, Kim ST, Park JS, Jo BR, Park JY, Park HY, Joo SS. Diarylheptanoid Hirsutenone Attenuates Osteoclastogenesis by Suppressing IFNγ and NF-κB Signaling in Th1 and Preosteoclastic Cells. Biol Pharm Bull 2017; 40:630-637. [DOI: 10.1248/bpb.b16-00876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Do Ik Lee
- College of Pharmacy, Chung-Ang University
| | - Su Kil Jang
- College of Life Science, Gangneung-Wonju National University
| | - Da Woon Park
- College of Life Science, Gangneung-Wonju National University
| | - Seung Tae Kim
- College of Life Science, Gangneung-Wonju National University
| | - Jun Sub Park
- College of Life Science, Gangneung-Wonju National University
| | - Bo Ram Jo
- College of Life Science, Gangneung-Wonju National University
| | - Jung Youl Park
- Industry-Academic Cooperation Foundation, Hanbat National University
| | | | - Seong Soo Joo
- College of Life Science, Gangneung-Wonju National University
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50
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Sandeep A, Reddy BS, Hyder I, Kumar HMS. Synthesis of a new class of glycolipids and the evaluation of their immunogenicity using murine splenocytes. J Carbohydr Chem 2016. [DOI: 10.1080/07328303.2016.1238480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- A. Sandeep
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Bonam Srinivasa Reddy
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR–Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Irfan Hyder
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR–Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Halmuthur M. Sampath Kumar
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- Academy of Scientific and Innovative Research, CSIR–Indian Institute of Chemical Technology, Hyderabad 500007, India
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