γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation

Previous research reported litchi thaumatin-like protein (LcTLP) could lead to inflammation, which is a factor causing the adverse reactions after excessive intake of litchi. As a main amino acid in litchi pulp, γ-aminobutyric acid (GABA) was found with anti-inflammatory effect. Therefore, this stud...

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Main Authors: Yao Wang, Dongwei Wang, Kai Wang, Min Zhao, Cizhou Li, Yu Wang, Xuwei Liu, Lei Zhao, Zhuoyan Hu
Format: Article
Language:English
Published: Tsinghua University Press 2024-09-01
Series:Food Science and Human Wellness
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Online Access:https://www.sciopen.com/article/10.26599/FSHW.2022.9250251
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author Yao Wang
Dongwei Wang
Kai Wang
Min Zhao
Cizhou Li
Yu Wang
Xuwei Liu
Lei Zhao
Zhuoyan Hu
author_facet Yao Wang
Dongwei Wang
Kai Wang
Min Zhao
Cizhou Li
Yu Wang
Xuwei Liu
Lei Zhao
Zhuoyan Hu
author_sort Yao Wang
collection DOAJ
description Previous research reported litchi thaumatin-like protein (LcTLP) could lead to inflammation, which is a factor causing the adverse reactions after excessive intake of litchi. As a main amino acid in litchi pulp, γ-aminobutyric acid (GABA) was found with anti-inflammatory effect. Therefore, this study aimed to investigate the effects of GABA on LcTLP-induced inflammation through RAW264.7 macrophages and C57BL mice models. In vitro study showed GABA could effectively regulate the level of inflammatory cytokines (interleukin (IL)-1β, IL-6, IL-10, and prostaglandin E2) and Ca2+ in cells, and inhibit the phosphorylation of p65, I κB, p38, c-Jun N-terminal kinase (JNK) and extracellular signal-regulated kinase (ERK). These results indicate GABA alleviated inflammation through nuclear factor-κB and mitogen-activated protein kinase pathway signaling pathways. In vivo experiment was performed to verify the anti -inflammatory effect of GABA, and the results demonstrated that GABA reduced the inflammation and oxidative stress in the liver of LcTLP-treated mice, as it down-regulated the pro- inflammatory cytokines, malondialdehyde, aspartate transferase, and alanine transaminase. The relative expression of phosphorylated p38, JNK and ERK in mice liver with GABA treatment were reduced to 65%, 39% and 80% of the control group, respectively. Furthermore, GABA treatment enriched probiotic bacteria and decreased pathogenic bacteria in mice gut, which reveals GABA could effectively reduce the translocation of gut microbiota.
format Article
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institution DOAJ
issn 2097-0765
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publishDate 2024-09-01
publisher Tsinghua University Press
record_format Article
series Food Science and Human Wellness
spelling doaj-art-167cc36a85e24413ac01afa6770c8fe32025-08-20T02:45:03ZengTsinghua University PressFood Science and Human Wellness2097-07652213-45302024-09-011353043305310.26599/FSHW.2022.9250251γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocationYao Wang0Dongwei Wang1Kai Wang2Min Zhao3Cizhou Li4Yu Wang5Xuwei Liu6Lei Zhao7Zhuoyan Hu8Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, ChinaGuangzhou Wanglaoji Lychee Industry Development Co., Ltd., Guangzhou 510623, ChinaGuangzhou Wanglaoji Lychee Industry Development Co., Ltd., Guangzhou 510623, ChinaGuangzhou Wanglaoji Lychee Industry Development Co., Ltd., Guangzhou 510623, ChinaGuangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, ChinaPrevious research reported litchi thaumatin-like protein (LcTLP) could lead to inflammation, which is a factor causing the adverse reactions after excessive intake of litchi. As a main amino acid in litchi pulp, γ-aminobutyric acid (GABA) was found with anti-inflammatory effect. Therefore, this study aimed to investigate the effects of GABA on LcTLP-induced inflammation through RAW264.7 macrophages and C57BL mice models. In vitro study showed GABA could effectively regulate the level of inflammatory cytokines (interleukin (IL)-1β, IL-6, IL-10, and prostaglandin E2) and Ca2+ in cells, and inhibit the phosphorylation of p65, I κB, p38, c-Jun N-terminal kinase (JNK) and extracellular signal-regulated kinase (ERK). These results indicate GABA alleviated inflammation through nuclear factor-κB and mitogen-activated protein kinase pathway signaling pathways. In vivo experiment was performed to verify the anti -inflammatory effect of GABA, and the results demonstrated that GABA reduced the inflammation and oxidative stress in the liver of LcTLP-treated mice, as it down-regulated the pro- inflammatory cytokines, malondialdehyde, aspartate transferase, and alanine transaminase. The relative expression of phosphorylated p38, JNK and ERK in mice liver with GABA treatment were reduced to 65%, 39% and 80% of the control group, respectively. Furthermore, GABA treatment enriched probiotic bacteria and decreased pathogenic bacteria in mice gut, which reveals GABA could effectively reduce the translocation of gut microbiota.https://www.sciopen.com/article/10.26599/FSHW.2022.9250251anti-inflammationgut microbiotalitchi thaumatin-like proteinmitogen-activated protein kinase pathwayγ-aminobutyric acid
spellingShingle Yao Wang
Dongwei Wang
Kai Wang
Min Zhao
Cizhou Li
Yu Wang
Xuwei Liu
Lei Zhao
Zhuoyan Hu
γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation
Food Science and Human Wellness
anti-inflammation
gut microbiota
litchi thaumatin-like protein
mitogen-activated protein kinase pathway
γ-aminobutyric acid
title γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation
title_full γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation
title_fullStr γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation
title_full_unstemmed γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation
title_short γ-Aminobutyric acid alleviates litchi thaumatin-like protein-induced inflammation and reduces gut microbial translocation
title_sort γ aminobutyric acid alleviates litchi thaumatin like protein induced inflammation and reduces gut microbial translocation
topic anti-inflammation
gut microbiota
litchi thaumatin-like protein
mitogen-activated protein kinase pathway
γ-aminobutyric acid
url https://www.sciopen.com/article/10.26599/FSHW.2022.9250251
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