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Published in: Current Allergy and Asthma Reports 1/2010

Open Access 01-01-2010

Chronic Helminth Infections Protect Against Allergic Diseases by Active Regulatory Processes

Authors: Hermelijn H. Smits, Bart Everts, Franca C. Hartgers, Maria Yazdanbakhsh

Published in: Current Allergy and Asthma Reports | Issue 1/2010

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Abstract

Developed countries are suffering from an epidemic rise in immunologic disorders, such as allergy-related diseases and certain autoimmunities. Several studies have demonstrated a negative association between helminth infections and inflammatory diseases (eg, allergy), providing a strong case for the involvement of helminth infections in this respect. However, some studies point in the opposite direction. The discrepancy may be explained by differences in frequency, dose, time, and type of helminth. In this review, new studies are discussed that may support the concept that chronic helminth infections in particular—but not acute infections—are associated with the expression of regulatory networks necessary for downmodulating allergic immune responses to harmless antigens. Furthermore, different components of regulatory networks are highlighted, such as the role of regulatory T and B cells, modulation of dendritic cells, early innate signals from structural cells (eg, epithelial cells), and their individual contributions to protection against allergic diseases. It is of great interest to define and characterize specific helminth molecules that have profound immunomodulatory capacities as targets for therapeutic application in the treatment or prophylaxis of allergic manifestations.
Literature
1.
go back to reference Patel SP, Jarvelin MR, Little MP: Systematic review of worldwide variations of the prevalence of wheezing symptoms in children. Environ Health 2008, 7:57.CrossRefPubMed Patel SP, Jarvelin MR, Little MP: Systematic review of worldwide variations of the prevalence of wheezing symptoms in children. Environ Health 2008, 7:57.CrossRefPubMed
2.
go back to reference Weinstock JV, Elliott DE: Helminths and the IBD hygiene hypothesis. Inflamm Bowel Dis 2009, 15:128–133.CrossRefPubMed Weinstock JV, Elliott DE: Helminths and the IBD hygiene hypothesis. Inflamm Bowel Dis 2009, 15:128–133.CrossRefPubMed
3.
go back to reference Schaub B, Lauener R, von Mutius E: The many faces of the hygiene hypothesis. J Allergy Clin Immunol 2006, 117:969–977.CrossRefPubMed Schaub B, Lauener R, von Mutius E: The many faces of the hygiene hypothesis. J Allergy Clin Immunol 2006, 117:969–977.CrossRefPubMed
4.
go back to reference Leonardi-Bee J, Pritchard D, Britton J: Asthma and current intestinal parasite infection: systematic review and meta-analysis. Am J Respir Crit Care Med 2006, 174:514–523.CrossRefPubMed Leonardi-Bee J, Pritchard D, Britton J: Asthma and current intestinal parasite infection: systematic review and meta-analysis. Am J Respir Crit Care Med 2006, 174:514–523.CrossRefPubMed
5.
go back to reference Cooper PJ: Interactions between helminth parasites and allergy. Curr Opin Allergy Clin Immunol 2009, 9:29–37.CrossRefPubMed Cooper PJ: Interactions between helminth parasites and allergy. Curr Opin Allergy Clin Immunol 2009, 9:29–37.CrossRefPubMed
6.
go back to reference Cooper PJ, Barreto ML, Rodrigues LC: Human allergy and geohelminth infections: a review of the literature and a proposed conceptual model to guide the investigation of possible causal associations. Br Med Bull 2006, 79–80:203–218.CrossRefPubMed Cooper PJ, Barreto ML, Rodrigues LC: Human allergy and geohelminth infections: a review of the literature and a proposed conceptual model to guide the investigation of possible causal associations. Br Med Bull 2006, 79–80:203–218.CrossRefPubMed
7.
go back to reference Rodrigues LC, Newcombe PJ, Cunha SS, et al.: Early infection with Trichuris trichiura and allergen skin test reactivity in later childhood. Clin Exp Allergy 2008, 38:1769–1777.PubMed Rodrigues LC, Newcombe PJ, Cunha SS, et al.: Early infection with Trichuris trichiura and allergen skin test reactivity in later childhood. Clin Exp Allergy 2008, 38:1769–1777.PubMed
8.
go back to reference Guadalupe I, Mitre E, Benitez S, et al.: Evidence for in utero sensitization to Ascaris lumbricoides in newborns of mothers with ascariasis. J Infect Dis 2009, 199:1846–1850.CrossRefPubMed Guadalupe I, Mitre E, Benitez S, et al.: Evidence for in utero sensitization to Ascaris lumbricoides in newborns of mothers with ascariasis. J Infect Dis 2009, 199:1846–1850.CrossRefPubMed
9.
go back to reference Djuardi Y, Wibowo H, Supali T, et al.: Determinants of the relationship between cytokine production in pregnant women and their infants. PLoS One 2009, 4:e7711.CrossRefPubMed Djuardi Y, Wibowo H, Supali T, et al.: Determinants of the relationship between cytokine production in pregnant women and their infants. PLoS One 2009, 4:e7711.CrossRefPubMed
10.
go back to reference Smits HH, Yazdanbakhsh M: Chronic helminth infections modulate allergen-specific immune responses: protection against development of allergic disorders? Ann Med 2007, 39:428–439.CrossRefPubMed Smits HH, Yazdanbakhsh M: Chronic helminth infections modulate allergen-specific immune responses: protection against development of allergic disorders? Ann Med 2007, 39:428–439.CrossRefPubMed
11.
go back to reference Hartgers FC, Obeng BB, Kruize YC, et al.: Lower expression of TLR2 and SOCS-3 is associated with Schistosoma haematobium infection and with lower risk for allergic reactivity in children living in a rural area in Ghana. PLoS Negl Trop Dis 2008, 2:e227.CrossRefPubMed Hartgers FC, Obeng BB, Kruize YC, et al.: Lower expression of TLR2 and SOCS-3 is associated with Schistosoma haematobium infection and with lower risk for allergic reactivity in children living in a rural area in Ghana. PLoS Negl Trop Dis 2008, 2:e227.CrossRefPubMed
12.
go back to reference Obeng BB, Hartgers F, Boakye D, Yazdanbakhsh M: Out of Africa: what can be learned from the studies of allergic disorders in Africa and Africans? Curr Opin Allergy Clin Immunol 2008, 8:391–397.CrossRefPubMed Obeng BB, Hartgers F, Boakye D, Yazdanbakhsh M: Out of Africa: what can be learned from the studies of allergic disorders in Africa and Africans? Curr Opin Allergy Clin Immunol 2008, 8:391–397.CrossRefPubMed
13.
go back to reference Palmer LJ, Celedon JC, Weiss ST, et al.: Ascaris lumbricoides infection is associated with increased risk of childhood asthma and atopy in rural China. Am J Respir Crit Care Med 2002, 165:1489–1493.CrossRefPubMed Palmer LJ, Celedon JC, Weiss ST, et al.: Ascaris lumbricoides infection is associated with increased risk of childhood asthma and atopy in rural China. Am J Respir Crit Care Med 2002, 165:1489–1493.CrossRefPubMed
14.
go back to reference Obihara CC, Beyers N, Gie RP, et al.: Respiratory atopic disease, Ascaris-immunoglobulin E and tuberculin testing in urban South African children. Clin Exp Allergy 2006, 36:640–648.CrossRefPubMed Obihara CC, Beyers N, Gie RP, et al.: Respiratory atopic disease, Ascaris-immunoglobulin E and tuberculin testing in urban South African children. Clin Exp Allergy 2006, 36:640–648.CrossRefPubMed
15.
go back to reference Moller M, Gravenor MB, Roberts SE, et al.: Genetic haplotypes of Th-2 immune signalling link allergy to enhanced protection to parasitic worms. Hum Mol Genet 2007, 16:1828–1836.CrossRefPubMed Moller M, Gravenor MB, Roberts SE, et al.: Genetic haplotypes of Th-2 immune signalling link allergy to enhanced protection to parasitic worms. Hum Mol Genet 2007, 16:1828–1836.CrossRefPubMed
16.
go back to reference Flohr C, Quinnell RJ, Britton J: Do helminth parasites protect against atopy and allergic disease? Clin Exp Allergy 2009, 39:20–32.CrossRefPubMed Flohr C, Quinnell RJ, Britton J: Do helminth parasites protect against atopy and allergic disease? Clin Exp Allergy 2009, 39:20–32.CrossRefPubMed
17.
go back to reference Medeiros M Jr, Figueiredo JP, Almeida MC, et al.: Schistosoma mansoni infection is associated with a reduced course of asthma. J Allergy Clin Immunol 2003, 111:947–951.CrossRefPubMed Medeiros M Jr, Figueiredo JP, Almeida MC, et al.: Schistosoma mansoni infection is associated with a reduced course of asthma. J Allergy Clin Immunol 2003, 111:947–951.CrossRefPubMed
18.
go back to reference Buijs J, Borsboom G, Renting M, et al.: Relationship between allergic manifestations and Toxocara seropositivity: a cross-sectional study among elementary school children. Eur Respir J 1997, 10:1467–1475.CrossRefPubMed Buijs J, Borsboom G, Renting M, et al.: Relationship between allergic manifestations and Toxocara seropositivity: a cross-sectional study among elementary school children. Eur Respir J 1997, 10:1467–1475.CrossRefPubMed
19.
go back to reference Gonzalez-Quintela A, Gude F, Campos J, et al.: Toxocara infection seroprevalence and its relationship with atopic features in a general adult population. Int Arch Allergy Immunol 2006, 139:317–324.CrossRefPubMed Gonzalez-Quintela A, Gude F, Campos J, et al.: Toxocara infection seroprevalence and its relationship with atopic features in a general adult population. Int Arch Allergy Immunol 2006, 139:317–324.CrossRefPubMed
20.
go back to reference Cooper PJ, Chico ME, Vaca MG, et al.: Effect of albendazole treatments on the prevalence of atopy in children living in communities endemic for geohelminth parasites: a cluster-randomised trial. Lancet 2006, 367:1598–1603.CrossRefPubMed Cooper PJ, Chico ME, Vaca MG, et al.: Effect of albendazole treatments on the prevalence of atopy in children living in communities endemic for geohelminth parasites: a cluster-randomised trial. Lancet 2006, 367:1598–1603.CrossRefPubMed
21.
go back to reference Lynch NR, Hagel I, Perez M, et al.: Effect of anthelmintic treatment on the allergic reactivity of children in a tropical slum. J Allergy Clin Immunol 1993, 92:404–411.CrossRefPubMed Lynch NR, Hagel I, Perez M, et al.: Effect of anthelmintic treatment on the allergic reactivity of children in a tropical slum. J Allergy Clin Immunol 1993, 92:404–411.CrossRefPubMed
22.
go back to reference van den Biggelaar AH, Rodrigues LC, van Ree R, et al.: Long-term treatment of intestinal helminths increases mite skin-test reactivity in Gabonese schoolchildren. J Infect Dis 2004, 189:892–900.CrossRefPubMed van den Biggelaar AH, Rodrigues LC, van Ree R, et al.: Long-term treatment of intestinal helminths increases mite skin-test reactivity in Gabonese schoolchildren. J Infect Dis 2004, 189:892–900.CrossRefPubMed
23.
go back to reference Flohr C, Tuyen LN, Quinnell RJ, et al.: Reduced helminth burden increases allergen skin sensitization but not clinical allergy: a randomized, double-blind, placebo-controlled trial in Vietnam. Clin Exp Allergy 2009, 40(1):131–142. Flohr C, Tuyen LN, Quinnell RJ, et al.: Reduced helminth burden increases allergen skin sensitization but not clinical allergy: a randomized, double-blind, placebo-controlled trial in Vietnam. Clin Exp Allergy 2009, 40(1):131–142.
24.
go back to reference Maizels RM, Yazdanbakhsh M: T-cell regulation in helminth parasite infections: implications for inflammatory diseases. Chem Immunol Allergy 2008, 94:112–123.CrossRefPubMed Maizels RM, Yazdanbakhsh M: T-cell regulation in helminth parasite infections: implications for inflammatory diseases. Chem Immunol Allergy 2008, 94:112–123.CrossRefPubMed
25.
go back to reference van Riet E, Retra K, Adegnika AA, et al.: Cellular and humoral responses to tetanus vaccination in Gabonese children. Vaccine 2008, 26:3690–3695.CrossRefPubMed van Riet E, Retra K, Adegnika AA, et al.: Cellular and humoral responses to tetanus vaccination in Gabonese children. Vaccine 2008, 26:3690–3695.CrossRefPubMed
26.
go back to reference van Riet E, Adegnika AA, Retra K, et al.: Cellular and humoral responses to influenza in Gabonese children living in rural and semi-urban areas. J Infect Dis 2007, 196:1671–1678.CrossRefPubMed van Riet E, Adegnika AA, Retra K, et al.: Cellular and humoral responses to influenza in Gabonese children living in rural and semi-urban areas. J Infect Dis 2007, 196:1671–1678.CrossRefPubMed
27.
go back to reference Elias D, Britton S, Aseffa A, et al.: Poor immunogenicity of BCG in helminth infected population is associated with increased in vitro TGF-beta production. Vaccine 2008, 26:3897–3902.CrossRefPubMed Elias D, Britton S, Aseffa A, et al.: Poor immunogenicity of BCG in helminth infected population is associated with increased in vitro TGF-beta production. Vaccine 2008, 26:3897–3902.CrossRefPubMed
28.
go back to reference Hartgers FC, Yazdanbakhsh M: Co-infection of helminths and malaria: modulation of the immune responses to malaria. Parasite Immunol 2006, 28:497–506.CrossRefPubMed Hartgers FC, Yazdanbakhsh M: Co-infection of helminths and malaria: modulation of the immune responses to malaria. Parasite Immunol 2006, 28:497–506.CrossRefPubMed
29.
go back to reference Hartgers FC, Obeng BB, Kruize YC, et al.: Responses to malarial antigens are altered in helminth-infected children. J Infect Dis 2009, 199:1528–1535.CrossRefPubMed Hartgers FC, Obeng BB, Kruize YC, et al.: Responses to malarial antigens are altered in helminth-infected children. J Infect Dis 2009, 199:1528–1535.CrossRefPubMed
30.
go back to reference Wilson MS, Taylor MD, Balic A, et al.: Suppression of allergic airway inflammation by helminth-induced regulatory T cells. J Exp Med 2005, 202:1199–1212.CrossRefPubMed Wilson MS, Taylor MD, Balic A, et al.: Suppression of allergic airway inflammation by helminth-induced regulatory T cells. J Exp Med 2005, 202:1199–1212.CrossRefPubMed
31.
go back to reference Kitagaki K, Businga TR, Racila D, et al.: Intestinal helminths protect in a murine model of asthma. J Immunol 2006, 177:1628–1635.PubMed Kitagaki K, Businga TR, Racila D, et al.: Intestinal helminths protect in a murine model of asthma. J Immunol 2006, 177:1628–1635.PubMed
32.
go back to reference Hartmann S, Schnoeller C, Dahten A, et al.: Gastrointestinal nematode infection interferes with experimental allergic airway inflammation but not atopic dermatitis. Clin Exp Allergy 2009, 39(10):585–596. Hartmann S, Schnoeller C, Dahten A, et al.: Gastrointestinal nematode infection interferes with experimental allergic airway inflammation but not atopic dermatitis. Clin Exp Allergy 2009, 39(10):585–596.
33.
go back to reference Bashir ME, Andersen P, Fuss IJ, et al.: An enteric helminth infection protects against an allergic response to dietary antigen. J Immunol 2002, 169:3284–3292.PubMed Bashir ME, Andersen P, Fuss IJ, et al.: An enteric helminth infection protects against an allergic response to dietary antigen. J Immunol 2002, 169:3284–3292.PubMed
34.
go back to reference McConchie BW, Norris HH, Bundoc VG, et al.: Ascaris suum-derived products suppress mucosal allergic inflammation in an interleukin-10-independent manner via interference with dendritic cell function. Infect Immun 2006, 74:6632–6641.CrossRefPubMed McConchie BW, Norris HH, Bundoc VG, et al.: Ascaris suum-derived products suppress mucosal allergic inflammation in an interleukin-10-independent manner via interference with dendritic cell function. Infect Immun 2006, 74:6632–6641.CrossRefPubMed
35.
go back to reference Araujo CA, Perini A, Martins MA, et al.: PAS-1, a protein from Ascaris suum, modulates allergic inflammation via IL-10 and IFN-gamma, but not IL-12. Cytokine 2008, 44:335–341.CrossRefPubMed Araujo CA, Perini A, Martins MA, et al.: PAS-1, a protein from Ascaris suum, modulates allergic inflammation via IL-10 and IFN-gamma, but not IL-12. Cytokine 2008, 44:335–341.CrossRefPubMed
36.
go back to reference Wohlleben G, Trujillo C, Muller J, et al.: Helminth infection modulates the development of allergen-induced airway inflammation. Int Immunol 2004, 16:585–596.CrossRefPubMed Wohlleben G, Trujillo C, Muller J, et al.: Helminth infection modulates the development of allergen-induced airway inflammation. Int Immunol 2004, 16:585–596.CrossRefPubMed
37.
go back to reference Smits HH, Hammad H, van Nimwegen M, et al.: Protective effect of Schistosoma mansoni infection on allergic airway inflammation depends on the intensity and chronicity of infection. J Allergy Clin Immunol 2007, 120:932–940.CrossRefPubMed Smits HH, Hammad H, van Nimwegen M, et al.: Protective effect of Schistosoma mansoni infection on allergic airway inflammation depends on the intensity and chronicity of infection. J Allergy Clin Immunol 2007, 120:932–940.CrossRefPubMed
38.
go back to reference Mangan NE, van Rooijen N, McKenzie AN, Fallon PG: Helminth-modified pulmonary immune response protects mice from allergen-induced airway hyperresponsiveness. J Immunol 2006, 176:138–147.PubMed Mangan NE, van Rooijen N, McKenzie AN, Fallon PG: Helminth-modified pulmonary immune response protects mice from allergen-induced airway hyperresponsiveness. J Immunol 2006, 176:138–147.PubMed
39.
go back to reference Pacifico LG, Marinho FA, Fonseca CT, et al.: Schistosoma mansoni antigens modulate experimental allergic asthma in a murine model: a major role for CD4+ CD25+ FoxP3+ T cells independent of interleukin-10. Infect Immun 2009, 77:98–107.CrossRefPubMed Pacifico LG, Marinho FA, Fonseca CT, et al.: Schistosoma mansoni antigens modulate experimental allergic asthma in a murine model: a major role for CD4+ CD25+ FoxP3+ T cells independent of interleukin-10. Infect Immun 2009, 77:98–107.CrossRefPubMed
40.
go back to reference Enobe CS, Araujo CA, Perini A, et al.: Early stages of Ascaris suum induce airway inflammation and hyperreactivity in a mouse model. Parasite Immunol 2006, 28:453–461.CrossRefPubMed Enobe CS, Araujo CA, Perini A, et al.: Early stages of Ascaris suum induce airway inflammation and hyperreactivity in a mouse model. Parasite Immunol 2006, 28:453–461.CrossRefPubMed
41.
go back to reference Pinelli E, Brandes S, Dormans J, et al.: Infection with the roundworm Toxocara canis leads to exacerbation of experimental allergic airway inflammation. Clin Exp Allergy 2008, 38:649–658.CrossRefPubMed Pinelli E, Brandes S, Dormans J, et al.: Infection with the roundworm Toxocara canis leads to exacerbation of experimental allergic airway inflammation. Clin Exp Allergy 2008, 38:649–658.CrossRefPubMed
42.
go back to reference Strait RT, Morris SC, Smiley K, et al.: IL-4 exacerbates anaphylaxis. J Immunol 2003, 170:3835–3842.PubMed Strait RT, Morris SC, Smiley K, et al.: IL-4 exacerbates anaphylaxis. J Immunol 2003, 170:3835–3842.PubMed
43.
go back to reference Kreider T, Anthony RM, Urban JF Jr, Gause WC: Alternatively activated macrophages in helminth infections. Curr Opin Immunol 2007, 19:448–453.CrossRefPubMed Kreider T, Anthony RM, Urban JF Jr, Gause WC: Alternatively activated macrophages in helminth infections. Curr Opin Immunol 2007, 19:448–453.CrossRefPubMed
44.
45.
go back to reference Hartl D, Koller B, Mehlhorn AT, et al.: Quantitative and functional impairment of pulmonary CD4+CD25hi regulatory T cells in pediatric asthma. J Allergy Clin Immunol 2007, 119:1258–1266.CrossRefPubMed Hartl D, Koller B, Mehlhorn AT, et al.: Quantitative and functional impairment of pulmonary CD4+CD25hi regulatory T cells in pediatric asthma. J Allergy Clin Immunol 2007, 119:1258–1266.CrossRefPubMed
46.
go back to reference Akdis M: Immune tolerance in allergy. Curr Opin Immunol 2009, 21(6):700–707. Akdis M: Immune tolerance in allergy. Curr Opin Immunol 2009, 21(6):700–707.
47.
go back to reference Maizels RM, Yazdanbakhsh M: Immune regulation by helminth parasites: cellular and molecular mechanisms. Nat Rev Immunol 2003, 3:733–744.CrossRefPubMed Maizels RM, Yazdanbakhsh M: Immune regulation by helminth parasites: cellular and molecular mechanisms. Nat Rev Immunol 2003, 3:733–744.CrossRefPubMed
48.
go back to reference Fallon PG, Mangan NE: Suppression of Th2-type allergic reactions by helminth infection. Nat Rev Immunol 2007, 7:220–230.CrossRefPubMed Fallon PG, Mangan NE: Suppression of Th2-type allergic reactions by helminth infection. Nat Rev Immunol 2007, 7:220–230.CrossRefPubMed
49.
go back to reference Satoguina J, Mempel M, Larbi J, et al.: Antigen-specific T regulatory-1 cells are associated with immunosuppression in a chronic helminth infection (onchocerciasis). Microbes Infect 2002, 4:1291–1300.CrossRefPubMed Satoguina J, Mempel M, Larbi J, et al.: Antigen-specific T regulatory-1 cells are associated with immunosuppression in a chronic helminth infection (onchocerciasis). Microbes Infect 2002, 4:1291–1300.CrossRefPubMed
50.
go back to reference Doetze A, Satoguina J, Burchard G, et al.: Antigen-specific cellular hyporesponsiveness in a chronic human helminth infection is mediated by T(h)3/T(r)1-type cytokines IL-10 and transforming growth factor-beta but not by a T(h)1 to T(h)2 shift. Int Immunol 2000, 12:623–630.CrossRefPubMed Doetze A, Satoguina J, Burchard G, et al.: Antigen-specific cellular hyporesponsiveness in a chronic human helminth infection is mediated by T(h)3/T(r)1-type cytokines IL-10 and transforming growth factor-beta but not by a T(h)1 to T(h)2 shift. Int Immunol 2000, 12:623–630.CrossRefPubMed
51.
go back to reference Babu S, Blauvelt CP, Kumaraswami V, Nutman TB: Regulatory networks induced by live parasites impair both Th1 and Th2 pathways in patent lymphatic filariasis: implications for parasite persistence. J Immunol 2006, 176:3248–3256.PubMed Babu S, Blauvelt CP, Kumaraswami V, Nutman TB: Regulatory networks induced by live parasites impair both Th1 and Th2 pathways in patent lymphatic filariasis: implications for parasite persistence. J Immunol 2006, 176:3248–3256.PubMed
52.
go back to reference Watanabe K, Mwinzi PN, Black CL, et al.: T regulatory cell levels decrease in people infected with Schistosoma mansoni on effective treatment. Am J Trop Med Hyg 2007, 77:676–682.PubMed Watanabe K, Mwinzi PN, Black CL, et al.: T regulatory cell levels decrease in people infected with Schistosoma mansoni on effective treatment. Am J Trop Med Hyg 2007, 77:676–682.PubMed
53.
go back to reference Wammes LJ, Hamid F, Wiria AE, et al.: Regulatory T cells in human geohelminth infection suppress immune responses to BCG and Plasmodium falciparum. Eur J Immunol 2010, 40(2):1–6. Wammes LJ, Hamid F, Wiria AE, et al.: Regulatory T cells in human geohelminth infection suppress immune responses to BCG and Plasmodium falciparum. Eur J Immunol 2010, 40(2):1–6.
54.
go back to reference Baumgart M, Tompkins F, Leng J, Hesse M: Naturally occurring CD4+Foxp3+ regulatory T cells are an essential, IL-10-independent part of the immunoregulatory network in Schistosoma mansoni egg-induced inflammation. J Immunol 2006, 176:5374–5387.PubMed Baumgart M, Tompkins F, Leng J, Hesse M: Naturally occurring CD4+Foxp3+ regulatory T cells are an essential, IL-10-independent part of the immunoregulatory network in Schistosoma mansoni egg-induced inflammation. J Immunol 2006, 176:5374–5387.PubMed
55.
go back to reference Huehn J, Siegmund K, Lehmann JC, et al.: Developmental stage, phenotype, and migration distinguish naive- and effector/memory-like CD4+ regulatory T cells. J Exp Med 2004, 199:303–313.CrossRefPubMed Huehn J, Siegmund K, Lehmann JC, et al.: Developmental stage, phenotype, and migration distinguish naive- and effector/memory-like CD4+ regulatory T cells. J Exp Med 2004, 199:303–313.CrossRefPubMed
56.
go back to reference McKee AS, Pearce EJ: CD25+CD4+ cells contribute to Th2 polarization during helminth infection by suppressing Th1 response development. J Immunol 2004, 173:1224–1231.PubMed McKee AS, Pearce EJ: CD25+CD4+ cells contribute to Th2 polarization during helminth infection by suppressing Th1 response development. J Immunol 2004, 173:1224–1231.PubMed
57.
go back to reference Taylor JJ, Mohrs M, Pearce EJ: Regulatory T cell responses develop in parallel to Th responses and control the magnitude and phenotype of the Th effector population. J Immunol 2006, 176:5839–5847.PubMed Taylor JJ, Mohrs M, Pearce EJ: Regulatory T cell responses develop in parallel to Th responses and control the magnitude and phenotype of the Th effector population. J Immunol 2006, 176:5839–5847.PubMed
58.
go back to reference Hesse M, Piccirillo CA, Belkaid Y, et al.: The pathogenesis of schistosomiasis is controlled by cooperating IL-10-producing innate effector and regulatory T cells. J Immunol 2004, 172:3157–3166.PubMed Hesse M, Piccirillo CA, Belkaid Y, et al.: The pathogenesis of schistosomiasis is controlled by cooperating IL-10-producing innate effector and regulatory T cells. J Immunol 2004, 172:3157–3166.PubMed
59.
go back to reference Sadler CH, Rutitzky LI, Stadecker MJ, Wilson RA: IL-10 is crucial for the transition from acute to chronic disease state during infection of mice with Schistosoma mansoni. Eur J Immunol 2003, 33:880–888.CrossRefPubMed Sadler CH, Rutitzky LI, Stadecker MJ, Wilson RA: IL-10 is crucial for the transition from acute to chronic disease state during infection of mice with Schistosoma mansoni. Eur J Immunol 2003, 33:880–888.CrossRefPubMed
60.
go back to reference Fillatreau S, Gray D, Anderton SM: Not always the bad guys: B cells as regulators of autoimmune pathology. Nat Rev Immunol 2008, 8:391–397.CrossRefPubMed Fillatreau S, Gray D, Anderton SM: Not always the bad guys: B cells as regulators of autoimmune pathology. Nat Rev Immunol 2008, 8:391–397.CrossRefPubMed
61.
go back to reference Lund FE: Cytokine-producing B lymphocytes-key regulators of immunity. Curr Opin Immunol 2008, 20:332–338.CrossRefPubMed Lund FE: Cytokine-producing B lymphocytes-key regulators of immunity. Curr Opin Immunol 2008, 20:332–338.CrossRefPubMed
62.
go back to reference Velupillai P, Secor WE, Horauf AM, Harn DA: B-1 cell (CD5+B220+) outgrowth in murine schistosomiasis is genetically restricted and is largely due to activation by polylactosamine sugars. J Immunol 1997, 158:338–344.PubMed Velupillai P, Secor WE, Horauf AM, Harn DA: B-1 cell (CD5+B220+) outgrowth in murine schistosomiasis is genetically restricted and is largely due to activation by polylactosamine sugars. J Immunol 1997, 158:338–344.PubMed
63.
go back to reference Mangan NE, Fallon RE, Smith P, et al.: Helminth infection protects mice from anaphylaxis via IL-10-producing B cells. J Immunol 2004, 173:6346–6356.PubMed Mangan NE, Fallon RE, Smith P, et al.: Helminth infection protects mice from anaphylaxis via IL-10-producing B cells. J Immunol 2004, 173:6346–6356.PubMed
64.
go back to reference Jankovic D, Cheever AW, Kullberg MC, et al.: CD4+ T cell-mediated granulomatous pathology in schistosomiasis is downregulated by a B cell-dependent mechanism requiring Fc receptor signaling. J Exp Med 1998, 187:619–629.CrossRefPubMed Jankovic D, Cheever AW, Kullberg MC, et al.: CD4+ T cell-mediated granulomatous pathology in schistosomiasis is downregulated by a B cell-dependent mechanism requiring Fc receptor signaling. J Exp Med 1998, 187:619–629.CrossRefPubMed
65.
go back to reference Gillan V, Lawrence RA, Devaney E: B cells play a regulatory role in mice infected with the L3 of Brugia pahangi. Int Immunol 2005, 17:373–382.CrossRefPubMed Gillan V, Lawrence RA, Devaney E: B cells play a regulatory role in mice infected with the L3 of Brugia pahangi. Int Immunol 2005, 17:373–382.CrossRefPubMed
66.
go back to reference Correale J, Farez M, Razzitte G: Helminth infections associated with multiple sclerosis induce regulatory B cells. Ann Neurol 2008, 64:187–199.CrossRefPubMed Correale J, Farez M, Razzitte G: Helminth infections associated with multiple sclerosis induce regulatory B cells. Ann Neurol 2008, 64:187–199.CrossRefPubMed
67.
go back to reference Singh A, Carson WF, Secor ER Jr, et al.: Regulatory role of B cells in a murine model of allergic airway disease. J Immunol 2008, 180:7318–7326.PubMed Singh A, Carson WF, Secor ER Jr, et al.: Regulatory role of B cells in a murine model of allergic airway disease. J Immunol 2008, 180:7318–7326.PubMed
68.
go back to reference Wilson MS, Taylor MD, Balic A, et al.: Helminth-induced CD19+CD23hi B cells modulate experimental allergic and autoimmune inflammation. Eur J Immunol 2010 (in press). Wilson MS, Taylor MD, Balic A, et al.: Helminth-induced CD19+CD23hi B cells modulate experimental allergic and autoimmune inflammation. Eur J Immunol 2010 (in press).
69.
go back to reference Joffre O, Nolte MA, Sporri R, Reis e Sousa C: Inflammatory signals in dendritic cell activation and the induction of adaptive immunity. Immunol Rev 2009, 227:234–247.CrossRefPubMed Joffre O, Nolte MA, Sporri R, Reis e Sousa C: Inflammatory signals in dendritic cell activation and the induction of adaptive immunity. Immunol Rev 2009, 227:234–247.CrossRefPubMed
70.
go back to reference Everts B, Perona-Wright G, Smits HH, et al.: Omega-1, a glycoprotein secreted by Schistosoma mansoni eggs, drives Th2 responses. J Exp Med 2009, 206:1673–1680.CrossRefPubMed Everts B, Perona-Wright G, Smits HH, et al.: Omega-1, a glycoprotein secreted by Schistosoma mansoni eggs, drives Th2 responses. J Exp Med 2009, 206:1673–1680.CrossRefPubMed
71.
go back to reference Steinfelder S, Andersen JF, Cannons JL, et al.: The major component in schistosome eggs responsible for conditioning dendritic cells for Th2 polarization is a T2 ribonuclease (omega-1). J Exp Med 2009, 206:1681–1690.CrossRefPubMed Steinfelder S, Andersen JF, Cannons JL, et al.: The major component in schistosome eggs responsible for conditioning dendritic cells for Th2 polarization is a T2 ribonuclease (omega-1). J Exp Med 2009, 206:1681–1690.CrossRefPubMed
72.
go back to reference Goodridge HS, McGuiness S, Houston KM, et al.: Phosphorylcholine mimics the effects of ES-62 on macrophages and dendritic cells. Parasite Immunol 2007, 29:127–137.CrossRefPubMed Goodridge HS, McGuiness S, Houston KM, et al.: Phosphorylcholine mimics the effects of ES-62 on macrophages and dendritic cells. Parasite Immunol 2007, 29:127–137.CrossRefPubMed
73.
go back to reference Thomas PG, Carter MR, Atochina O, et al.: Maturation of dendritic cell 2 phenotype by a helminth glycan uses a Toll-like receptor 4-dependent mechanism. J Immunol 2003, 171:5837–5841.PubMed Thomas PG, Carter MR, Atochina O, et al.: Maturation of dendritic cell 2 phenotype by a helminth glycan uses a Toll-like receptor 4-dependent mechanism. J Immunol 2003, 171:5837–5841.PubMed
74.
go back to reference van Liempt E, van Vliet SJ, Engering A, et al.: Schistosoma mansoni soluble egg antigens are internalized by human dendritic cells through multiple C-type lectins and suppress TLR-induced dendritic cell activation. Mol Immunol 2007, 44:2605–2615.CrossRefPubMed van Liempt E, van Vliet SJ, Engering A, et al.: Schistosoma mansoni soluble egg antigens are internalized by human dendritic cells through multiple C-type lectins and suppress TLR-induced dendritic cell activation. Mol Immunol 2007, 44:2605–2615.CrossRefPubMed
75.
go back to reference van Riet E, Everts B, Retra K, et al.: Combined TLR2 and TLR4 ligation in the context of bacterial or helminth extracts in human monocyte derived dendritic cells: molecular correlates for Th1/Th2 polarization. BMC Immunol 2009, 10:9.CrossRefPubMed van Riet E, Everts B, Retra K, et al.: Combined TLR2 and TLR4 ligation in the context of bacterial or helminth extracts in human monocyte derived dendritic cells: molecular correlates for Th1/Th2 polarization. BMC Immunol 2009, 10:9.CrossRefPubMed
76.
go back to reference Kane CM, Jung E, Pearce EJ: Schistosoma mansoni egg antigen-mediated modulation of Toll-like receptor (TLR)-induced activation occurs independently of TLR2, TLR4, and MyD88. Infect Immun 2008, 76:5754–5759.CrossRefPubMed Kane CM, Jung E, Pearce EJ: Schistosoma mansoni egg antigen-mediated modulation of Toll-like receptor (TLR)-induced activation occurs independently of TLR2, TLR4, and MyD88. Infect Immun 2008, 76:5754–5759.CrossRefPubMed
77.
go back to reference van der Kleij D, Latz E, Brouwers JF, et al.: A novel host-parasite lipid cross-talk. Schistosomal lyso-phosphatidylserine activates Toll-like receptor 2 and affects immune polarization. J Biol Chem 2002, 277:48122–48129.CrossRefPubMed van der Kleij D, Latz E, Brouwers JF, et al.: A novel host-parasite lipid cross-talk. Schistosomal lyso-phosphatidylserine activates Toll-like receptor 2 and affects immune polarization. J Biol Chem 2002, 277:48122–48129.CrossRefPubMed
78.
go back to reference Wang X, Zhou S, Chi Y, et al.: CD4(+)CD25(+) Treg induction by an HSP60-derived peptide SJMHE1 from Schistosoma japonicum is TLR2 dependent. Eur J Immunol 2009, 39:3052–3065.CrossRefPubMed Wang X, Zhou S, Chi Y, et al.: CD4(+)CD25(+) Treg induction by an HSP60-derived peptide SJMHE1 from Schistosoma japonicum is TLR2 dependent. Eur J Immunol 2009, 39:3052–3065.CrossRefPubMed
79.
go back to reference Layland LE, Rad R, Wagner H, da Costa CU: Immunopathology in schistosomiasis is controlled by antigen-specific regulatory T cells primed in the presence of TLR2. Eur J Immunol 2007, 37:2174–2184.CrossRefPubMed Layland LE, Rad R, Wagner H, da Costa CU: Immunopathology in schistosomiasis is controlled by antigen-specific regulatory T cells primed in the presence of TLR2. Eur J Immunol 2007, 37:2174–2184.CrossRefPubMed
80.
go back to reference Sutmuller RP, den Brok MH, Kramer M, et al.: Toll-like receptor 2 controls expansion and function of regulatory T cells. J Clin Invest 2006, 116:485–494.CrossRefPubMed Sutmuller RP, den Brok MH, Kramer M, et al.: Toll-like receptor 2 controls expansion and function of regulatory T cells. J Clin Invest 2006, 116:485–494.CrossRefPubMed
81.
go back to reference Liu H, Komai-Koma M, Xu D, Liew FY: Toll-like receptor 2 signaling modulates the functions of CD4+ CD25+ regulatory T cells. Proc Natl Acad Sci U S A 2006, 103:7048–7053.CrossRefPubMed Liu H, Komai-Koma M, Xu D, Liew FY: Toll-like receptor 2 signaling modulates the functions of CD4+ CD25+ regulatory T cells. Proc Natl Acad Sci U S A 2006, 103:7048–7053.CrossRefPubMed
82.
go back to reference van Die I, van Vliet SJ, Nyame AK, et al.: The dendritic cell-specific C-type lectin DC-SIGN is a receptor for Schistosoma mansoni egg antigens and recognizes the glycan antigen Lewis x. Glycobiology 2003, 13:471–478.CrossRefPubMed van Die I, van Vliet SJ, Nyame AK, et al.: The dendritic cell-specific C-type lectin DC-SIGN is a receptor for Schistosoma mansoni egg antigens and recognizes the glycan antigen Lewis x. Glycobiology 2003, 13:471–478.CrossRefPubMed
83.
go back to reference Okano M, Satoskar AR, Nishizaki K, et al.: Induction of Th2 responses and IgE is largely due to carbohydrates functioning as adjuvants on Schistosoma mansoni egg antigens. J Immunol 1999, 163:6712–6717.PubMed Okano M, Satoskar AR, Nishizaki K, et al.: Induction of Th2 responses and IgE is largely due to carbohydrates functioning as adjuvants on Schistosoma mansoni egg antigens. J Immunol 1999, 163:6712–6717.PubMed
84.
go back to reference Okano M, Satoskar AR, Nishizaki K, Harn DA Jr: Lacto-N-fucopentaose III found on Schistosoma mansoni egg antigens functions as adjuvant for proteins by inducing Th2-type response. J Immunol 2001, 167:442–450.PubMed Okano M, Satoskar AR, Nishizaki K, Harn DA Jr: Lacto-N-fucopentaose III found on Schistosoma mansoni egg antigens functions as adjuvant for proteins by inducing Th2-type response. J Immunol 2001, 167:442–450.PubMed
85.
go back to reference Schabussova I, Amer H, van Die I, et al.: O-methylated glycans from Toxocara are specific targets for antibody binding in human and animal infections. Int J Parasitol 2007, 37:97–109.CrossRefPubMed Schabussova I, Amer H, van Die I, et al.: O-methylated glycans from Toxocara are specific targets for antibody binding in human and animal infections. Int J Parasitol 2007, 37:97–109.CrossRefPubMed
86.
go back to reference Tawill S, Le Goff L, Ali F, et al.: Both free-living and parasitic nematodes induce a characteristic Th2 response that is dependent on the presence of intact glycans. Infect Immun 2004, 72:398–407.CrossRefPubMed Tawill S, Le Goff L, Ali F, et al.: Both free-living and parasitic nematodes induce a characteristic Th2 response that is dependent on the presence of intact glycans. Infect Immun 2004, 72:398–407.CrossRefPubMed
87.
go back to reference Silva SR, Jacysyn JF, Macedo MS, Faquim-Mauro EL: Immunosuppressive components of Ascaris suum down-regulate expression of costimulatory molecules and function of antigen-presenting cells via an IL-10-mediated mechanism. Eur J Immunol 2006, 36:3227–3237.CrossRefPubMed Silva SR, Jacysyn JF, Macedo MS, Faquim-Mauro EL: Immunosuppressive components of Ascaris suum down-regulate expression of costimulatory molecules and function of antigen-presenting cells via an IL-10-mediated mechanism. Eur J Immunol 2006, 36:3227–3237.CrossRefPubMed
88.
go back to reference Perona-Wright G, Jenkins SJ, MacDonald AS: Dendritic cell activation and function in response to Schistosoma mansoni. Int J Parasitol 2006, 36:711–721.CrossRefPubMed Perona-Wright G, Jenkins SJ, MacDonald AS: Dendritic cell activation and function in response to Schistosoma mansoni. Int J Parasitol 2006, 36:711–721.CrossRefPubMed
89.
go back to reference Carvalho L, Sun J, Kane C, et al.: Review series on helminths, immune modulation and the hygiene hypothesis: mechanisms underlying helminth modulation of dendritic cell function. Immunology 2009, 126:28–34.CrossRefPubMed Carvalho L, Sun J, Kane C, et al.: Review series on helminths, immune modulation and the hygiene hypothesis: mechanisms underlying helminth modulation of dendritic cell function. Immunology 2009, 126:28–34.CrossRefPubMed
90.
go back to reference Geijtenbeek TB, Gringhuis SI: Signalling through C-type lectin receptors: shaping immune responses. Nat Rev Immunol 2009, 9:465–479.CrossRefPubMed Geijtenbeek TB, Gringhuis SI: Signalling through C-type lectin receptors: shaping immune responses. Nat Rev Immunol 2009, 9:465–479.CrossRefPubMed
91.
go back to reference Ferret-Bernard S, Curwen RS, Mountford AP: Proteomic profiling reveals that Th2-inducing dendritic cells stimulated with helminth antigens have a ‘limited maturation’ phenotype. Proteomics 2008, 8:980–993.CrossRefPubMed Ferret-Bernard S, Curwen RS, Mountford AP: Proteomic profiling reveals that Th2-inducing dendritic cells stimulated with helminth antigens have a ‘limited maturation’ phenotype. Proteomics 2008, 8:980–993.CrossRefPubMed
92.
go back to reference Saenz SA, Taylor BC, Artis D: Welcome to the neighborhood: epithelial cell-derived cytokines license innate and adaptive immune responses at mucosal sites. Immunol Rev 2008, 226:172–190.CrossRefPubMed Saenz SA, Taylor BC, Artis D: Welcome to the neighborhood: epithelial cell-derived cytokines license innate and adaptive immune responses at mucosal sites. Immunol Rev 2008, 226:172–190.CrossRefPubMed
93.
go back to reference Barrett NA, Austen KF: Innate cells and T helper 2 cell immunity in airway inflammation. Immunity 2009, 31:425–437.CrossRefPubMed Barrett NA, Austen KF: Innate cells and T helper 2 cell immunity in airway inflammation. Immunity 2009, 31:425–437.CrossRefPubMed
94.
go back to reference Rochman Y, Leonard WJ: Thymic stromal lymphopoietin: a new cytokine in asthma. Curr Opin Pharmacol 2008, 8:249–254.CrossRefPubMed Rochman Y, Leonard WJ: Thymic stromal lymphopoietin: a new cytokine in asthma. Curr Opin Pharmacol 2008, 8:249–254.CrossRefPubMed
95.
go back to reference Zaph C, Troy AE, Taylor BC, et al.: Epithelial-cell-intrinsic IKK-beta expression regulates intestinal immune homeostasis. Nature 2007, 446:552–556.CrossRefPubMed Zaph C, Troy AE, Taylor BC, et al.: Epithelial-cell-intrinsic IKK-beta expression regulates intestinal immune homeostasis. Nature 2007, 446:552–556.CrossRefPubMed
96.
go back to reference Massacand JC, Stettler RC, Meier R, et al.: Helminth products bypass the need for TSLP in Th2 immune responses by directly modulating dendritic cell function. Proc Natl Acad Sci U S A 2009, 106:13968–13973.CrossRefPubMed Massacand JC, Stettler RC, Meier R, et al.: Helminth products bypass the need for TSLP in Th2 immune responses by directly modulating dendritic cell function. Proc Natl Acad Sci U S A 2009, 106:13968–13973.CrossRefPubMed
97.
go back to reference Ramalingam TR, Pesce JT, Mentink-Kane MM, et al.: Regulation of helminth-induced Th2 responses by thymic stromal lymphopoietin. J Immunol 2009, 182:6452–6459.CrossRefPubMed Ramalingam TR, Pesce JT, Mentink-Kane MM, et al.: Regulation of helminth-induced Th2 responses by thymic stromal lymphopoietin. J Immunol 2009, 182:6452–6459.CrossRefPubMed
98.
go back to reference Owyang AM, Zaph C, Wilson EH, et al.: Interleukin 25 regulates type 2 cytokine-dependent immunity and limits chronic inflammation in the gastrointestinal tract. J Exp Med 2006, 203:843–849.CrossRefPubMed Owyang AM, Zaph C, Wilson EH, et al.: Interleukin 25 regulates type 2 cytokine-dependent immunity and limits chronic inflammation in the gastrointestinal tract. J Exp Med 2006, 203:843–849.CrossRefPubMed
99.
go back to reference Fallon PG, Ballantyne SJ, Mangan NE, et al.: Identification of an interleukin (IL)-25-dependent cell population that provides IL-4, IL-5, and IL-13 at the onset of helminth expulsion. J Exp Med 2006, 203:1105–1116.CrossRefPubMed Fallon PG, Ballantyne SJ, Mangan NE, et al.: Identification of an interleukin (IL)-25-dependent cell population that provides IL-4, IL-5, and IL-13 at the onset of helminth expulsion. J Exp Med 2006, 203:1105–1116.CrossRefPubMed
100.
go back to reference Humphreys NE, Xu D, Hepworth MR, et al.: IL-33, a potent inducer of adaptive immunity to intestinal nematodes. J Immunol 2008, 180:2443–2449.PubMed Humphreys NE, Xu D, Hepworth MR, et al.: IL-33, a potent inducer of adaptive immunity to intestinal nematodes. J Immunol 2008, 180:2443–2449.PubMed
101.
go back to reference Iliev ID, Mileti E, Matteoli G, et al.: Intestinal epithelial cells promote colitis-protective regulatory T-cell differentiation through dendritic cell conditioning. Mucosal Immunol 2009, 2:340–350.CrossRefPubMed Iliev ID, Mileti E, Matteoli G, et al.: Intestinal epithelial cells promote colitis-protective regulatory T-cell differentiation through dendritic cell conditioning. Mucosal Immunol 2009, 2:340–350.CrossRefPubMed
102.
go back to reference Ward C, Eger K, Diboll J, et al.: Bronchial epithelial cells cultured from clinically stable lung allograft patients promote the development of macrophages from monocytes rather than dendritic cells. Thorax 2009, 64:430–435.CrossRefPubMed Ward C, Eger K, Diboll J, et al.: Bronchial epithelial cells cultured from clinically stable lung allograft patients promote the development of macrophages from monocytes rather than dendritic cells. Thorax 2009, 64:430–435.CrossRefPubMed
103.
go back to reference Mayer AK, Bartz H, Fey F, et al.: Airway epithelial cells modify immune responses by inducing an anti-inflammatory microenvironment. Eur J Immunol 2008, 38:1689–1699.CrossRefPubMed Mayer AK, Bartz H, Fey F, et al.: Airway epithelial cells modify immune responses by inducing an anti-inflammatory microenvironment. Eur J Immunol 2008, 38:1689–1699.CrossRefPubMed
104.
go back to reference Wells JM, Loonen LM, Karczewski JM: The role of innate signaling in the homeostasis of tolerance and immunity in the intestine. Int J Med Microbiol 2010, 300(1):41–48. Wells JM, Loonen LM, Karczewski JM: The role of innate signaling in the homeostasis of tolerance and immunity in the intestine. Int J Med Microbiol 2010, 300(1):41–48.
105.
go back to reference Mendez-Samperio P, Trejo A, Perez A: Mycobacterium bovis Bacillus Calmette-Guerin (BCG) stimulates IL-10 production via the PI3K/Akt and p38 MAPK pathways in human lung epithelial cells. Cell Immunol 2008, 251:37–42.CrossRefPubMed Mendez-Samperio P, Trejo A, Perez A: Mycobacterium bovis Bacillus Calmette-Guerin (BCG) stimulates IL-10 production via the PI3K/Akt and p38 MAPK pathways in human lung epithelial cells. Cell Immunol 2008, 251:37–42.CrossRefPubMed
106.
go back to reference Pichavant M, Taront S, Jeannin P, et al.: Impact of bronchial epithelium on dendritic cell migration and function: modulation by the bacterial motif KpOmpA. J Immunol 2006, 177:5912–5919.PubMed Pichavant M, Taront S, Jeannin P, et al.: Impact of bronchial epithelium on dendritic cell migration and function: modulation by the bacterial motif KpOmpA. J Immunol 2006, 177:5912–5919.PubMed
Metadata
Title
Chronic Helminth Infections Protect Against Allergic Diseases by Active Regulatory Processes
Authors
Hermelijn H. Smits
Bart Everts
Franca C. Hartgers
Maria Yazdanbakhsh
Publication date
01-01-2010
Publisher
Current Science Inc.
Published in
Current Allergy and Asthma Reports / Issue 1/2010
Print ISSN: 1529-7322
Electronic ISSN: 1534-6315
DOI
https://doi.org/10.1007/s11882-009-0085-3

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