Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells

Background: Recent metabolomics studies have found circulatory metabolism alterations in patients with asthma, indicating that altered metabolites played a significant role in asthma. However, the regulatory mechanisms in asthma, especially in young chronic persistent asthma remain underexplored. Me...

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Autores principales:	Bo Zhou, Gulinigaer Tuerhong Jiang, Hui Liu, Manyun Guo, Junhui Liu, Jianqing She
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	chronic persistent asthma human airway epithelial cells arginine metabolism L-citrulline Nutrition. Foods and food supply TX341-641
Acceso en línea:	https://doaj.org/article/979eb8c185aa4c52bddc4821570b6867
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spelling	oai:doaj.org-article:979eb8c185aa4c52bddc4821570b68672021-11-25T18:36:53ZDysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells10.3390/nu131141162072-6643https://doaj.org/article/979eb8c185aa4c52bddc4821570b68672021-11-01T00:00:00Zhttps://www.mdpi.com/2072-6643/13/11/4116https://doaj.org/toc/2072-6643Background: Recent metabolomics studies have found circulatory metabolism alterations in patients with asthma, indicating that altered metabolites played a significant role in asthma. However, the regulatory mechanisms in asthma, especially in young chronic persistent asthma remain underexplored. Methods: In this study, a prospective cohort of 162 patients diagnosed of asthma admitted to the First Affiliated Hospital of Xi’an Jiaotong University from January 2018 to December 2019 was used to perform a nested case-control study. Among them, we included 30 patients with chronic persistent asthma between 20 to 35 years old; 30 health control with evenly distributed age and sex were then recruited. Nontargeted metabolomics was applied to identify serum metabolic profiles and altered metabolic pathways. Results: In vitro, human bronchial epithelial cells (HBECs) line BEAS-2B with the addition of L-citrulline and/or asymmetric dimethylarginine (ADMA) model was utilized and the concentrations of nitric oxide (NO) metabolites were tested to evaluate the therapeutic potential of L-citrulline. The young patients with chronic persistent asthma displayed dysregulated serum metabolic profiles, especially enriched in arginine metabolism. The ratio of L-citrulline to ornithine is associated with blood eosinophil count. In vitro, adding L-citrulline could reverse ADMA-mediated reduction of NOx at lower L-arginine concentration (25 μM), but was ineffective in the higher L-arginine concentration (100 μM) media. Conclusions: The arginine metabolism balance is of vital importance during the pathogenesis and progression of chronic asthma. L-citrulline could be a powerful approach to restore airway NO production, potentially exhibiting therapeutic benefits among young patients with chronic asthma.Bo ZhouGulinigaer Tuerhong JiangHui LiuManyun GuoJunhui LiuJianqing SheMDPI AGarticlechronic persistent asthmahuman airway epithelial cellsarginine metabolismL-citrullineNutrition. Foods and food supplyTX341-641ENNutrients, Vol 13, Iss 4116, p 4116 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	chronic persistent asthma human airway epithelial cells arginine metabolism L-citrulline Nutrition. Foods and food supply TX341-641
spellingShingle	chronic persistent asthma human airway epithelial cells arginine metabolism L-citrulline Nutrition. Foods and food supply TX341-641 Bo Zhou Gulinigaer Tuerhong Jiang Hui Liu Manyun Guo Junhui Liu Jianqing She Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells
description	Background: Recent metabolomics studies have found circulatory metabolism alterations in patients with asthma, indicating that altered metabolites played a significant role in asthma. However, the regulatory mechanisms in asthma, especially in young chronic persistent asthma remain underexplored. Methods: In this study, a prospective cohort of 162 patients diagnosed of asthma admitted to the First Affiliated Hospital of Xi’an Jiaotong University from January 2018 to December 2019 was used to perform a nested case-control study. Among them, we included 30 patients with chronic persistent asthma between 20 to 35 years old; 30 health control with evenly distributed age and sex were then recruited. Nontargeted metabolomics was applied to identify serum metabolic profiles and altered metabolic pathways. Results: In vitro, human bronchial epithelial cells (HBECs) line BEAS-2B with the addition of L-citrulline and/or asymmetric dimethylarginine (ADMA) model was utilized and the concentrations of nitric oxide (NO) metabolites were tested to evaluate the therapeutic potential of L-citrulline. The young patients with chronic persistent asthma displayed dysregulated serum metabolic profiles, especially enriched in arginine metabolism. The ratio of L-citrulline to ornithine is associated with blood eosinophil count. In vitro, adding L-citrulline could reverse ADMA-mediated reduction of NOx at lower L-arginine concentration (25 μM), but was ineffective in the higher L-arginine concentration (100 μM) media. Conclusions: The arginine metabolism balance is of vital importance during the pathogenesis and progression of chronic asthma. L-citrulline could be a powerful approach to restore airway NO production, potentially exhibiting therapeutic benefits among young patients with chronic asthma.
format	article
author	Bo Zhou Gulinigaer Tuerhong Jiang Hui Liu Manyun Guo Junhui Liu Jianqing She
author_facet	Bo Zhou Gulinigaer Tuerhong Jiang Hui Liu Manyun Guo Junhui Liu Jianqing She
author_sort	Bo Zhou
title	Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells
title_short	Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells
title_full	Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells
title_fullStr	Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells
title_full_unstemmed	Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells
title_sort	dysregulated arginine metabolism in young patients with chronic persistent asthma and in human bronchial epithelial cells
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/979eb8c185aa4c52bddc4821570b6867
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Dysregulated Arginine Metabolism in Young Patients with Chronic Persistent Asthma and in Human Bronchial Epithelial Cells

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