201
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Heylen M, Ruyssers NE, Gielis EM, Vanhomwegen E, Pelckmans PA, Moreels TG, De Man JG, De Winter BY. Of worms, mice and man: an overview of experimental and clinical helminth-based therapy for inflammatory bowel disease. Pharmacol Ther 2014; 143:153-67. [PMID: 24603369 DOI: 10.1016/j.pharmthera.2014.02.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 12/17/2022]
Abstract
The incidence of inflammatory and autoimmune disorders is highest in well-developed countries which is directly related to their higher hygienic standards: it is suggested that the lack of exposure to helminths contributes to the susceptibility for immune-related diseases. Epidemiological, experimental and clinical data support the idea that helminths provide protection against immune-mediated diseases such as inflammatory bowel disease (IBD). The most likely mechanism for the suppression of immune responses by helminths is the release of helminth-derived immunomodulatory molecules. This article reviews the experimental and clinical studies investigating the therapeutic potential of helminth-based therapy in IBD and also focuses on the current knowledge of its immunomodulatory mechanisms of action highlighting innate as well as adaptive immune mechanisms. Identifying the mechanisms by which these helminths and helminth-derived molecules modulate the immune system will help in creating novel drugs for the treatment of IBD and other disorders that result from an overactive immune response.
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Affiliation(s)
- Marthe Heylen
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium
| | - Nathalie E Ruyssers
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium
| | - Els M Gielis
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium
| | - Els Vanhomwegen
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium
| | - Paul A Pelckmans
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium; Antwerp University Hospital, Division of Gastroenterology & Hepatology, Antwerp, Belgium
| | - Tom G Moreels
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium; Antwerp University Hospital, Division of Gastroenterology & Hepatology, Antwerp, Belgium
| | - Joris G De Man
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium
| | - Benedicte Y De Winter
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, Antwerp, Belgium.
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202
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Smith KM, Gautschi JT, Freitag M. Decoding the cryptic genomes of fungi: the promise of novel antibiotics. Future Microbiol 2014; 9:265-8. [DOI: 10.2217/fmb.14.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Kristina M Smith
- Programs in Biology & Chemistry, Oregon State University-Cascades, 2600 Northwest College Way, Bend, OR 97701, USA
- Department of Biochemistry & Biophysics, 2011 ALS Bldg., Oregon State University, Corvallis, OR 97331, USA
| | - Jeffrey T Gautschi
- Programs in Biology & Chemistry, Oregon State University-Cascades, 2600 Northwest College Way, Bend, OR 97701, USA
- Department of Chemistry, Gilbert Hall, Oregon State University, Corvallis, OR 97331, USA
| | - Michael Freitag
- Department of Biochemistry & Biophysics, 2011 ALS Bldg., Oregon State University, Corvallis, OR 97331, USA
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203
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Abdoli A, Pirestani M. Are pregnant women with chronic helminth infections more susceptible to congenital infections? Front Immunol 2014; 5:53. [PMID: 24575099 PMCID: PMC3921675 DOI: 10.3389/fimmu.2014.00053] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 01/29/2014] [Indexed: 11/13/2022] Open
Affiliation(s)
- Amir Abdoli
- Department of Parasitology, Faculty of Medical Sciences, Kashan University of Medical Science , Kashan , Iran ; Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University , Tehran , Iran
| | - Majid Pirestani
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University , Tehran , Iran
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204
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Ashenafi S, Aderaye G, Bekele A, Zewdie M, Aseffa G, Hoang ATN, Carow B, Habtamu M, Wijkander M, Rottenberg M, Aseffa A, Andersson J, Svensson M, Brighenti S. Progression of clinical tuberculosis is associated with a Th2 immune response signature in combination with elevated levels of SOCS3. Clin Immunol 2014; 151:84-99. [PMID: 24584041 DOI: 10.1016/j.clim.2014.01.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/08/2014] [Accepted: 01/30/2014] [Indexed: 02/06/2023]
Abstract
In this study, we explored the local cytokine/chemokine profiles in patients with active pulmonary or pleural tuberculosis (TB) using multiplex protein analysis of bronchoalveolar lavage and pleural fluid samples. Despite increased pro-inflammation compared to the uninfected controls; there was no up-regulation of IFN-γ or the T cell chemoattractant CCL5 in the lung of patients with pulmonary TB. Instead, elevated levels of IL-4 and CCL4 were associated with high mycobacteria-specific IgG titres as well as SOCS3 (suppressors of cytokine signaling) mRNA and progression of moderate-to-severe disease. Contrary, IL-4, CCL4 and SOCS3 remained low in patients with extrapulmonary pleural TB, while IFN-γ, CCL5 and SOCS1 were up-regulated. Both SOCS molecules were induced in human macrophages infected with Mycobacterium tuberculosis in vitro. The Th2 immune response signature found in patients with progressive pulmonary TB could result from inappropriate cytokine/chemokine responses and excessive SOCS3 expression that may represent potential targets for clinical TB management.
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Affiliation(s)
- Senait Ashenafi
- Karolinska Institutet, Center for Infectious Medicine (CIM), F59, Department of Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden; Black Lion University Hospital and Addis Ababa University, Department of Pathology, Faculty of Medicine, Addis Ababa, Ethiopia
| | - Getachew Aderaye
- Black Lion University Hospital and Addis Ababa University, Department of Internal Medicine, Faculty of Medicine, Addis Ababa, Ethiopia
| | - Amsalu Bekele
- Black Lion University Hospital and Addis Ababa University, Department of Internal Medicine, Faculty of Medicine, Addis Ababa, Ethiopia
| | - Martha Zewdie
- Armauer Hansen Research Institute (AHRI), Addis Ababa, Ethiopia
| | - Getachew Aseffa
- Black Lion University Hospital and Addis Ababa University, Department of Radiology, Faculty of Medicine, Addis Ababa, Ethiopia
| | - Anh Thu Nguyen Hoang
- Karolinska Institutet, Center for Infectious Medicine (CIM), F59, Department of Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Berit Carow
- Karolinska Institutet, Department of Microbiology, Tumor and Cell Biology (MTC), Stockholm, Sweden
| | - Meseret Habtamu
- Armauer Hansen Research Institute (AHRI), Addis Ababa, Ethiopia
| | - Maria Wijkander
- Karolinska Institutet, Center for Infectious Medicine (CIM), F59, Department of Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Martin Rottenberg
- Karolinska Institutet, Department of Microbiology, Tumor and Cell Biology (MTC), Stockholm, Sweden
| | - Abraham Aseffa
- Armauer Hansen Research Institute (AHRI), Addis Ababa, Ethiopia
| | - Jan Andersson
- Karolinska Institutet, Center for Infectious Medicine (CIM), F59, Department of Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden; Karolinska University Hospital Huddinge, Department of Medicine, Division of Infectious Diseases, Stockholm, Sweden
| | - Mattias Svensson
- Karolinska Institutet, Center for Infectious Medicine (CIM), F59, Department of Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Susanna Brighenti
- Karolinska Institutet, Center for Infectious Medicine (CIM), F59, Department of Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden.
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205
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Sriram U, Xu J, Chain RW, Varghese L, Chakhtoura M, Bennett HL, Zoltick PW, Gallucci S. IL-4 suppresses the responses to TLR7 and TLR9 stimulation and increases the permissiveness to retroviral infection of murine conventional dendritic cells. PLoS One 2014; 9:e87668. [PMID: 24489947 PMCID: PMC3906189 DOI: 10.1371/journal.pone.0087668] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 12/28/2013] [Indexed: 12/11/2022] Open
Abstract
Th2-inducing pathological conditions such as parasitic diseases increase susceptibility to viral infections through yet unclear mechanisms. We have previously reported that IL-4, a pivotal Th2 cytokine, suppresses the response of murine bone-marrow-derived conventional dendritic cells (cDCs) and splenic DCs to Type I interferons (IFNs). Here, we analyzed cDC responses to TLR7 and TLR9 ligands, R848 and CpGs, respectively. We found that IL-4 suppressed the gene expression of IFNβ and IFN-responsive genes (IRGs) upon TLR7 and TLR9 stimulation. IL-4 also inhibited IFN-dependent MHC Class I expression and amplification of IFN signaling pathways triggered upon TLR stimulation, as indicated by the suppression of IRF7 and STAT2. Moreover, IL-4 suppressed TLR7- and TLR9-induced cDC production of pro-inflammatory cytokines such as TNFα, IL-12p70 and IL-6 by inhibiting IFN-dependent and NFκB-dependent responses. IL-4 similarly suppressed TLR responses in splenic DCs. IL-4 inhibition of IRGs and pro-inflammatory cytokine production upon TLR7 and TLR9 stimulation was STAT6-dependent, since DCs from STAT6-KO mice were resistant to the IL-4 suppression. Analysis of SOCS molecules (SOCS1, −2 and −3) showed that IL-4 induces SOCS1 and SOCS2 in a STAT6 dependent manner and suggest that IL-4 suppression could be mediated by SOCS molecules, in particular SOCS2. IL-4 also decreased the IFN response and increased permissiveness to viral infection of cDCs exposed to a HIV-based lentivirus. Our results indicate that IL-4 modulates and counteracts pro-inflammatory stimulation induced by TLR7 and TLR9 and it may negatively affect responses against viruses and intracellular parasites.
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Affiliation(s)
- Uma Sriram
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Temple University, School of Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail: (US); (SG)
| | - Jun Xu
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Temple University, School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Robert W. Chain
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Temple University, School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Linda Varghese
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Temple University, School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Marita Chakhtoura
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Temple University, School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Heather L. Bennett
- Joseph Stokes, Jr. Research Institute, Division of Rheumatology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Philip W. Zoltick
- Department of Surgery, The Children's Center for Fetal Research, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Stefania Gallucci
- Laboratory of Dendritic Cell Biology, Department of Microbiology and Immunology, Temple University, School of Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail: (US); (SG)
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