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Immunomodulatory effect of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in allergic conditions in vitro and in vivo

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Abstract

We found that strawberry extract suppressed immunoglobulin (Ig) E production in vitro and in vivo, and identified glyceraldehyde-3-phosphate dehydrogenase (GAPDH) as one of the IgE suppressor in the extract. We report here the effect of GAPDH on various Ig productions in vitro and in vivo. GAPDH suppressed IgE and enhanced IgA, IgG and IgM productions in ovalbumin (OVA)-stimulated human peripheral blood mononuclear cells. Oral administration of GAPDH at 10 mg/kg/day to OVA-induced allergy model mice tended to decrease total IgE level and increase total IgA and IgG levels in sera, and also decreased OVA-specific IgE and IgG levels. It is known that the increase of total IgA as well as the decrease of total and specific IgE is important for alleviating allergic symptoms. In addition, GAPDH accelerated IgA production and increased some cytokine secretions such as IL-4, TGF-β1 and IFN-γ in the OVA-immunized mice spleen lymphocytes. These cytokines involved in the class-switching, IgA enhancement, and IgE suppression, respectively, supporting above results. Our study suggests a possibility that oral administration of GAPDH may induce the immunomodulation in allergic responses.

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Abbreviations

EGCG:

(−)-Epigallocatechin-3-O-gallete

DHA:

Docosahexaenoic acid

ELISA:

Enzyme-linked immunosorbent assay

EPA:

Eicosapentaenoic acid

FBS:

Fetal bovine serum

GAPDH:

Glyceraldehyde-3-phosphate dehydrogenase

HRP:

Horseradish peroxidase

IFN:

Interferon

Ig:

Immunoglobulin

IL:

Interleukin

i.p.:

Intraperitoneal

IVI:

In vitro immunization

MDP:

Muramyl dipeptide

NAD:

Nicotinamide adenine dinucleotide

PBMC:

Peripheral blood mononuclear cell

PBS:

Phosphate buffered saline

SD:

Standard deviation

SPF:

Specific pathogen free

Th:

Helper T

TGF:

Tumor growth factor

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Acknowledgment

This work was supported in part by a Grant-in-Aid for JSPS Fellows (26-1351).

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Correspondence to Yuichi Inoue.

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The authors declare no conflict of interest.

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Iwamoto, A., Inoue, Y., Tachibana, H. et al. Immunomodulatory effect of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in allergic conditions in vitro and in vivo. Cytotechnology 73, 333–342 (2021). https://doi.org/10.1007/s10616-020-00438-z

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  • DOI: https://doi.org/10.1007/s10616-020-00438-z

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