Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis
BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be i...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
María Teresa Martín Monreal [verfasserIn] Amanda Kvist-Hansen [verfasserIn] Laura Massarenti [verfasserIn] Rudi Steffensen [verfasserIn] Nikolai Loft [verfasserIn] Peter Riis Hansen [verfasserIn] Niels Ødum [verfasserIn] Lone Skov [verfasserIn] Claus H. Nielsen [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Übergeordnetes Werk: |
In: Frontiers in Immunology - Frontiers Media S.A., 2011, 14(2023) |
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| Übergeordnetes Werk: |
volume:14 ; year:2023 |
| Links: |
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| DOI / URN: |
10.3389/fimmu.2023.1247592 |
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| Katalog-ID: |
DOAJ099065045 |
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| 100 | 0 | |a María Teresa Martín Monreal |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis |
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| 520 | |a BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. | ||
| 650 | 4 | |a psoriasis | |
| 650 | 4 | |a autoimmunity | |
| 650 | 4 | |a anti-microbial peptides | |
| 650 | 4 | |a citrullination | |
| 650 | 4 | |a IFN-γ | |
| 650 | 4 | |a neutrophil extracellular traps | |
| 653 | 0 | |a Immunologic diseases. Allergy | |
| 700 | 0 | |a Amanda Kvist-Hansen |e verfasserin |4 aut | |
| 700 | 0 | |a Laura Massarenti |e verfasserin |4 aut | |
| 700 | 0 | |a Laura Massarenti |e verfasserin |4 aut | |
| 700 | 0 | |a Rudi Steffensen |e verfasserin |4 aut | |
| 700 | 0 | |a Nikolai Loft |e verfasserin |4 aut | |
| 700 | 0 | |a Peter Riis Hansen |e verfasserin |4 aut | |
| 700 | 0 | |a Peter Riis Hansen |e verfasserin |4 aut | |
| 700 | 0 | |a Niels Ødum |e verfasserin |4 aut | |
| 700 | 0 | |a Lone Skov |e verfasserin |4 aut | |
| 700 | 0 | |a Lone Skov |e verfasserin |4 aut | |
| 700 | 0 | |a Claus H. Nielsen |e verfasserin |4 aut | |
| 700 | 0 | |a Claus H. Nielsen |e verfasserin |4 aut | |
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10.3389/fimmu.2023.1247592 doi (DE-627)DOAJ099065045 (DE-599)DOAJ8ae8f3edf3324d2b916fbbb6528134cd DE-627 ger DE-627 rakwb eng RC581-607 María Teresa Martín Monreal verfasserin aut Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. psoriasis autoimmunity anti-microbial peptides citrullination IFN-γ neutrophil extracellular traps Immunologic diseases. Allergy Amanda Kvist-Hansen verfasserin aut Laura Massarenti verfasserin aut Laura Massarenti verfasserin aut Rudi Steffensen verfasserin aut Nikolai Loft verfasserin aut Peter Riis Hansen verfasserin aut Peter Riis Hansen verfasserin aut Niels Ødum verfasserin aut Lone Skov verfasserin aut Lone Skov verfasserin aut Claus H. Nielsen verfasserin aut Claus H. Nielsen verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 14(2023) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:14 year:2023 https://doi.org/10.3389/fimmu.2023.1247592 kostenfrei https://doaj.org/article/8ae8f3edf3324d2b916fbbb6528134cd kostenfrei https://www.frontiersin.org/articles/10.3389/fimmu.2023.1247592/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 |
| spelling |
10.3389/fimmu.2023.1247592 doi (DE-627)DOAJ099065045 (DE-599)DOAJ8ae8f3edf3324d2b916fbbb6528134cd DE-627 ger DE-627 rakwb eng RC581-607 María Teresa Martín Monreal verfasserin aut Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. psoriasis autoimmunity anti-microbial peptides citrullination IFN-γ neutrophil extracellular traps Immunologic diseases. Allergy Amanda Kvist-Hansen verfasserin aut Laura Massarenti verfasserin aut Laura Massarenti verfasserin aut Rudi Steffensen verfasserin aut Nikolai Loft verfasserin aut Peter Riis Hansen verfasserin aut Peter Riis Hansen verfasserin aut Niels Ødum verfasserin aut Lone Skov verfasserin aut Lone Skov verfasserin aut Claus H. Nielsen verfasserin aut Claus H. Nielsen verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 14(2023) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:14 year:2023 https://doi.org/10.3389/fimmu.2023.1247592 kostenfrei https://doaj.org/article/8ae8f3edf3324d2b916fbbb6528134cd kostenfrei https://www.frontiersin.org/articles/10.3389/fimmu.2023.1247592/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 |
| allfields_unstemmed |
10.3389/fimmu.2023.1247592 doi (DE-627)DOAJ099065045 (DE-599)DOAJ8ae8f3edf3324d2b916fbbb6528134cd DE-627 ger DE-627 rakwb eng RC581-607 María Teresa Martín Monreal verfasserin aut Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. psoriasis autoimmunity anti-microbial peptides citrullination IFN-γ neutrophil extracellular traps Immunologic diseases. Allergy Amanda Kvist-Hansen verfasserin aut Laura Massarenti verfasserin aut Laura Massarenti verfasserin aut Rudi Steffensen verfasserin aut Nikolai Loft verfasserin aut Peter Riis Hansen verfasserin aut Peter Riis Hansen verfasserin aut Niels Ødum verfasserin aut Lone Skov verfasserin aut Lone Skov verfasserin aut Claus H. Nielsen verfasserin aut Claus H. Nielsen verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 14(2023) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:14 year:2023 https://doi.org/10.3389/fimmu.2023.1247592 kostenfrei https://doaj.org/article/8ae8f3edf3324d2b916fbbb6528134cd kostenfrei https://www.frontiersin.org/articles/10.3389/fimmu.2023.1247592/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 |
| allfieldsGer |
10.3389/fimmu.2023.1247592 doi (DE-627)DOAJ099065045 (DE-599)DOAJ8ae8f3edf3324d2b916fbbb6528134cd DE-627 ger DE-627 rakwb eng RC581-607 María Teresa Martín Monreal verfasserin aut Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. psoriasis autoimmunity anti-microbial peptides citrullination IFN-γ neutrophil extracellular traps Immunologic diseases. Allergy Amanda Kvist-Hansen verfasserin aut Laura Massarenti verfasserin aut Laura Massarenti verfasserin aut Rudi Steffensen verfasserin aut Nikolai Loft verfasserin aut Peter Riis Hansen verfasserin aut Peter Riis Hansen verfasserin aut Niels Ødum verfasserin aut Lone Skov verfasserin aut Lone Skov verfasserin aut Claus H. Nielsen verfasserin aut Claus H. Nielsen verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 14(2023) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:14 year:2023 https://doi.org/10.3389/fimmu.2023.1247592 kostenfrei https://doaj.org/article/8ae8f3edf3324d2b916fbbb6528134cd kostenfrei https://www.frontiersin.org/articles/10.3389/fimmu.2023.1247592/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 |
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10.3389/fimmu.2023.1247592 doi (DE-627)DOAJ099065045 (DE-599)DOAJ8ae8f3edf3324d2b916fbbb6528134cd DE-627 ger DE-627 rakwb eng RC581-607 María Teresa Martín Monreal verfasserin aut Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. psoriasis autoimmunity anti-microbial peptides citrullination IFN-γ neutrophil extracellular traps Immunologic diseases. Allergy Amanda Kvist-Hansen verfasserin aut Laura Massarenti verfasserin aut Laura Massarenti verfasserin aut Rudi Steffensen verfasserin aut Nikolai Loft verfasserin aut Peter Riis Hansen verfasserin aut Peter Riis Hansen verfasserin aut Niels Ødum verfasserin aut Lone Skov verfasserin aut Lone Skov verfasserin aut Claus H. Nielsen verfasserin aut Claus H. Nielsen verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 14(2023) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:14 year:2023 https://doi.org/10.3389/fimmu.2023.1247592 kostenfrei https://doaj.org/article/8ae8f3edf3324d2b916fbbb6528134cd kostenfrei https://www.frontiersin.org/articles/10.3389/fimmu.2023.1247592/full kostenfrei https://doaj.org/toc/1664-3224 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2023 |
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María Teresa Martín Monreal @@aut@@ Amanda Kvist-Hansen @@aut@@ Laura Massarenti @@aut@@ Rudi Steffensen @@aut@@ Nikolai Loft @@aut@@ Peter Riis Hansen @@aut@@ Niels Ødum @@aut@@ Lone Skov @@aut@@ Claus H. Nielsen @@aut@@ |
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It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. 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10.3389/fimmu.2023.1247592 |
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verfasserin |
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characterization of circulating extracellular traps and immune responses to citrullinated ll37 in psoriasis |
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RC581-607 |
| title_auth |
Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis |
| abstract |
BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. |
| abstractGer |
BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. |
| abstract_unstemmed |
BackgroundThe DNA-binding peptide LL37 is a suspected autoantigen in psoriasis. It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. The high-responders were those that had circulating NETs in combination with an earlier age of onset of the disease.ConclusionCitrullinated but not native LL37 elicits IFN-γ-responses by T cells and B cells from psoriasis patients, particularly those with circulating NETs and early disease onset, suggesting a role of citLL37 as an autoantigen in this subgroup of patients. |
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GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 |
| title_short |
Characterization of circulating extracellular traps and immune responses to citrullinated LL37 in psoriasis |
| url |
https://doi.org/10.3389/fimmu.2023.1247592 https://doaj.org/article/8ae8f3edf3324d2b916fbbb6528134cd https://www.frontiersin.org/articles/10.3389/fimmu.2023.1247592/full https://doaj.org/toc/1664-3224 |
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Amanda Kvist-Hansen Laura Massarenti Rudi Steffensen Nikolai Loft Peter Riis Hansen Niels Ødum Lone Skov Claus H. Nielsen |
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Amanda Kvist-Hansen Laura Massarenti Rudi Steffensen Nikolai Loft Peter Riis Hansen Niels Ødum Lone Skov Claus H. Nielsen |
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2024-07-03T20:49:13.032Z |
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It can be found in neutrophil extracellular traps (NETs) which have been suggested to play a role in the pathogenesis of the disease. Citrullination, the conversion of peptidyl-arginine into peptidyl-citrulline, can be implicated in the formation of NETs. We hypothesized that citrullination increases LL37 immunogenicity and that NETs are a source of LL37.ObjectivesWe aimed to characterize cytokine responses of B cells and T cells to native and citrullinated LL37 (citLL37) and determine the prevalence and composition of circulating NETs in patients with psoriasis and healthy blood donors (HDs).MethodsMononuclear cells (MNCs) and serum were isolated from 20 HDs and 20 patients with psoriasis. The MNCs were stimulated with native LL37 and citLL37 and the proportion of cytokine-positive B cells and T cells was determined by flow cytometry. Circulating antibodies against native LL37 and citLL37 as well as circulating NETs were measured by ELISA, as was the content of LL37, citLL37, and IgG in the NETs.ResultsCitLL37, but not native LL37, induced IFN-γ-production by T cells and B cells from psoriasis patients, as well as IL-10-production by the patients’ CD4+ T cells. Serum from 40% of patients and 55% of HDs contained circulating NETs, of which 63% and 27%, respectively, contained LL37. Only two patients had NETs containing citLL37 and IgG antibodies were found in NETs from three patients and one HD. Post-hoc analysis of the cytokines produced by B cells and T cells after stimulation with citLL37 revealed two clusters of patients consisting of 10 high-responders and 9 low-responders. 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