Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab

B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can...
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Gespeichert in:

Autor*in:	Christine Kowalczyk-Quintas [verfasserIn] Dehlia Chevalley [verfasserIn] Laure Willen [verfasserIn] Camilla Jandus [verfasserIn] Michele Vigolo [verfasserIn] Pascal Schneider [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	BAFF BLyS furin protein shedding complement antibody-dependent cell death

Übergeordnetes Werk:	In: Frontiers in Immunology - Frontiers Media S.A., 2011, 9(2018)
Übergeordnetes Werk:	volume:9 ; year:2018

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fimmu.2018.02698

Katalog-ID:	DOAJ011135131

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520			\|a B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin.
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allfields	10.3389/fimmu.2018.02698 doi (DE-627)DOAJ011135131 (DE-599)DOAJ80cc5a7e5b49445989c3e9d8ea76946f DE-627 ger DE-627 rakwb eng RC581-607 Christine Kowalczyk-Quintas verfasserin aut Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin. BAFF BLyS furin protein shedding complement antibody-dependent cell death Immunologic diseases. Allergy Dehlia Chevalley verfasserin aut Laure Willen verfasserin aut Camilla Jandus verfasserin aut Michele Vigolo verfasserin aut Pascal Schneider verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 9(2018) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:9 year:2018 https://doi.org/10.3389/fimmu.2018.02698 kostenfrei https://doaj.org/article/80cc5a7e5b49445989c3e9d8ea76946f kostenfrei https://www.frontiersin.org/article/10.3389/fimmu.2018.02698/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 9 2018
spelling	10.3389/fimmu.2018.02698 doi (DE-627)DOAJ011135131 (DE-599)DOAJ80cc5a7e5b49445989c3e9d8ea76946f DE-627 ger DE-627 rakwb eng RC581-607 Christine Kowalczyk-Quintas verfasserin aut Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin. BAFF BLyS furin protein shedding complement antibody-dependent cell death Immunologic diseases. Allergy Dehlia Chevalley verfasserin aut Laure Willen verfasserin aut Camilla Jandus verfasserin aut Michele Vigolo verfasserin aut Pascal Schneider verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 9(2018) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:9 year:2018 https://doi.org/10.3389/fimmu.2018.02698 kostenfrei https://doaj.org/article/80cc5a7e5b49445989c3e9d8ea76946f kostenfrei https://www.frontiersin.org/article/10.3389/fimmu.2018.02698/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 9 2018
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allfieldsGer	10.3389/fimmu.2018.02698 doi (DE-627)DOAJ011135131 (DE-599)DOAJ80cc5a7e5b49445989c3e9d8ea76946f DE-627 ger DE-627 rakwb eng RC581-607 Christine Kowalczyk-Quintas verfasserin aut Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin. BAFF BLyS furin protein shedding complement antibody-dependent cell death Immunologic diseases. Allergy Dehlia Chevalley verfasserin aut Laure Willen verfasserin aut Camilla Jandus verfasserin aut Michele Vigolo verfasserin aut Pascal Schneider verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 9(2018) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:9 year:2018 https://doi.org/10.3389/fimmu.2018.02698 kostenfrei https://doaj.org/article/80cc5a7e5b49445989c3e9d8ea76946f kostenfrei https://www.frontiersin.org/article/10.3389/fimmu.2018.02698/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 9 2018
allfieldsSound	10.3389/fimmu.2018.02698 doi (DE-627)DOAJ011135131 (DE-599)DOAJ80cc5a7e5b49445989c3e9d8ea76946f DE-627 ger DE-627 rakwb eng RC581-607 Christine Kowalczyk-Quintas verfasserin aut Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin. BAFF BLyS furin protein shedding complement antibody-dependent cell death Immunologic diseases. Allergy Dehlia Chevalley verfasserin aut Laure Willen verfasserin aut Camilla Jandus verfasserin aut Michele Vigolo verfasserin aut Pascal Schneider verfasserin aut In Frontiers in Immunology Frontiers Media S.A., 2011 9(2018) (DE-627)657998354 (DE-600)2606827-8 16643224 nnns volume:9 year:2018 https://doi.org/10.3389/fimmu.2018.02698 kostenfrei https://doaj.org/article/80cc5a7e5b49445989c3e9d8ea76946f kostenfrei https://www.frontiersin.org/article/10.3389/fimmu.2018.02698/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 9 2018
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authorswithroles_txt_mv	Christine Kowalczyk-Quintas @@aut@@ Dehlia Chevalley @@aut@@ Laure Willen @@aut@@ Camilla Jandus @@aut@@ Michele Vigolo @@aut@@ Pascal Schneider @@aut@@
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callnumber-first	R - Medicine
author	Christine Kowalczyk-Quintas
spellingShingle	Christine Kowalczyk-Quintas misc RC581-607 misc BAFF misc BLyS misc furin misc protein shedding misc complement misc antibody-dependent cell death misc Immunologic diseases. Allergy Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab
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topic_title	RC581-607 Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab BAFF BLyS furin protein shedding complement antibody-dependent cell death
topic	misc RC581-607 misc BAFF misc BLyS misc furin misc protein shedding misc complement misc antibody-dependent cell death misc Immunologic diseases. Allergy
topic_unstemmed	misc RC581-607 misc BAFF misc BLyS misc furin misc protein shedding misc complement misc antibody-dependent cell death misc Immunologic diseases. Allergy
topic_browse	misc RC581-607 misc BAFF misc BLyS misc furin misc protein shedding misc complement misc antibody-dependent cell death misc Immunologic diseases. Allergy
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title	Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab
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title_full	Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab
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title_sort	inhibition of membrane-bound baff by the anti-baff antibody belimumab
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title_auth	Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab
abstract	B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin.
abstractGer	B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin.
abstract_unstemmed	B cell activating factor of the TNF family (BAFF, also known as BLyS), a cytokine that regulates homeostasis of peripheral B cells, is elevated in the circulation of patients with autoimmune diseases such as systemic lupus erythematosus (SLE). BAFF is synthetized as a membrane-bound protein that can be processed to a soluble form after cleavage at a furin consensus sequence, a site that in principle can be recognized by any of the several proteases of the pro-protein convertase family. Belimumab is a human antibody approved for the treatment of SLE, often cited as specific for the soluble form of BAFF. Here we show in different experimental systems, including in a monocytic cell line (U937) that naturally expresses BAFF, that belimumab binds to membrane-bound BAFF with similar EC50 as the positive control atacicept, which is a decoy receptor for both BAFF and the related cytokine APRIL (a proliferation inducing ligand). In U937 cells, binding of both reagents was only detectable in furin-deficient U937 cells, showing that furin is the main BAFF processing protease in these cells. In CHO cells expressing membrane-bound BAFF lacking the stalk region, belimumab inhibited the activity of membrane-bound BAFF less efficiently than atacicept, while in furin-deficient U937 cells, belimumab inhibited membrane-bound BAFF and residual soluble BAFF as efficiently as atacicept. These reagents did not activate complement or antibody-dependent cell cytotoxicity upon binding to membrane-bound BAFF in vitro. In conclusion, our data show that belimumab can inhibit membrane-bound BAFF, and that BAFF in U937 cells is processed by furin.
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title_short	Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab
url	https://doi.org/10.3389/fimmu.2018.02698 https://doaj.org/article/80cc5a7e5b49445989c3e9d8ea76946f https://www.frontiersin.org/article/10.3389/fimmu.2018.02698/full https://doaj.org/toc/1664-3224
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Inhibition of Membrane-Bound BAFF by the Anti-BAFF Antibody Belimumab

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