Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice

An animal model of myasthenia gravis (MG), termed experimental autoimmune MG (EAMG), is an important tool for investigations of disease mechanisms and/or methods of treatment for this disease. EAMG can be induced in C57BL/6 (B6, H-2b) mice by 2–3 times injections at 4 weeks intervals with Torpedo ca...

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Main Authors: Takahiro Maruta, Minako Oshima, Dennis R. Mosier, M. Zouhair Atassi
Format: Article
Language:English
Published: Taylor & Francis Group 2017-07-01
Series:Autoimmunity
Subjects:
Online Access:http://dx.doi.org/10.1080/08916934.2017.1329831
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author Takahiro Maruta
Minako Oshima
Dennis R. Mosier
M. Zouhair Atassi
author_facet Takahiro Maruta
Minako Oshima
Dennis R. Mosier
M. Zouhair Atassi
author_sort Takahiro Maruta
collection DOAJ
description An animal model of myasthenia gravis (MG), termed experimental autoimmune MG (EAMG), is an important tool for investigations of disease mechanisms and/or methods of treatment for this disease. EAMG can be induced in C57BL/6 (B6, H-2b) mice by 2–3 times injections at 4 weeks intervals with Torpedo californica (t) acetylcholine receptor (AChR) in complete Freund’s adjuvant (CFA). However, the protocol especially with a two-injection schedule occasionally produces a poor incidence of EAMG. We have investigated the efficacy of the additional adjuvant, inactive organisms of Bordetella pertussis (iBP), on the induction with a two-injection schedule. In a group immunized with tAChR in CFA + iBP, 76% of mice developed EAMG (average grade in exercise test, 1.02). Whereas, 46% of mice were found EAMG-positive (average grade, 0.73) in a group injected with tAChR/CFA alone. Thus, the combined use of CFA and iBP significantly increased both the occurrence and severity of clinical MG in the immunized mice. This was accompanied by higher antibody (Ab) and T-cell responses to tAChR. The effect on disease occurrence of the iBP use in a three-injection protocol was also described.
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spelling doaj.art-adb5286298e94ad894c5caa60470338f2023-09-15T10:01:07ZengTaylor & Francis GroupAutoimmunity0891-69341607-842X2017-07-0150529330510.1080/08916934.2017.13298311329831Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 miceTakahiro Maruta0Minako Oshima1Dennis R. Mosier2M. Zouhair Atassi3Baylor College of MedicineBaylor College of MedicineBaylor College of MedicineBaylor College of MedicineAn animal model of myasthenia gravis (MG), termed experimental autoimmune MG (EAMG), is an important tool for investigations of disease mechanisms and/or methods of treatment for this disease. EAMG can be induced in C57BL/6 (B6, H-2b) mice by 2–3 times injections at 4 weeks intervals with Torpedo californica (t) acetylcholine receptor (AChR) in complete Freund’s adjuvant (CFA). However, the protocol especially with a two-injection schedule occasionally produces a poor incidence of EAMG. We have investigated the efficacy of the additional adjuvant, inactive organisms of Bordetella pertussis (iBP), on the induction with a two-injection schedule. In a group immunized with tAChR in CFA + iBP, 76% of mice developed EAMG (average grade in exercise test, 1.02). Whereas, 46% of mice were found EAMG-positive (average grade, 0.73) in a group injected with tAChR/CFA alone. Thus, the combined use of CFA and iBP significantly increased both the occurrence and severity of clinical MG in the immunized mice. This was accompanied by higher antibody (Ab) and T-cell responses to tAChR. The effect on disease occurrence of the iBP use in a three-injection protocol was also described.http://dx.doi.org/10.1080/08916934.2017.1329831acetylcholine receptorexperimental autoimmune myasthenia gravist cellantibodyinactive organisms of bordetella pertussis
spellingShingle Takahiro Maruta
Minako Oshima
Dennis R. Mosier
M. Zouhair Atassi
Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice
Autoimmunity
acetylcholine receptor
experimental autoimmune myasthenia gravis
t cell
antibody
inactive organisms of bordetella pertussis
title Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice
title_full Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice
title_fullStr Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice
title_full_unstemmed Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice
title_short Injection of inactive Bordetella pertussis and complete Freund’s adjuvant with Torpedo californica AChR increases the occurrence of experimental autoimmune myasthenia gravis in C57BL/6 mice
title_sort injection of inactive bordetella pertussis and complete freund s adjuvant with torpedo californica achr increases the occurrence of experimental autoimmune myasthenia gravis in c57bl 6 mice
topic acetylcholine receptor
experimental autoimmune myasthenia gravis
t cell
antibody
inactive organisms of bordetella pertussis
url http://dx.doi.org/10.1080/08916934.2017.1329831
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