Abstract:
:Background: Obesity is a condition with a complex pathophysiology characterized by both chronic low-grade inflammation and changes in the gut microbial ecosystem. These alterations can affect the metabolism of tryptophan (TRP), an essential amino acid and precursor of serotonin (5-HT), kynurenine (KYN), and indoles. This study aimed to investigate alterations in KYN and microbiota-mediated indole routes of TRP metabolism in obese subjects relatively to non-obese controls and to determine their relationship with systemic inflammation. Methods: Eighty-five obese adults (avg. BMI = 40.48) and 42 non-obese control individuals (avg. BMI = 24.03) were recruited. Plasma levels of TRP catabolites were assessed using Ultra High Performance Liquid Chromatography-ElectroSpray-Ionization-Tandem Mass Spectrometry. High-sensitive C-reactive protein (hsCRP) and high-sensitive interleukin 6 (hsIL-6) were measured in the serum as markers of systemic inflammation using enzyme-linked immunosorbent assay. Results: Both KYN and microbiota-mediated indole routes of TRP metabolism were altered in obese subjects, as reflected in higher KYN/TRP ratio and lower 5-HT and indoles levels, relatively to non-obese controls. HsIL-6 and hsCRP were increased in obesity and were overall associated with TRP metabolic pathways alterations. Conclusion: These results indicate for the first time that KYN and indole TRP metabolic pathways are concomitantly altered in obese subjects and highlight their respective associations with obesity-related systemic inflammation.
journal_name
Front Immunoljournal_title
Frontiers in immunologyauthors
Cussotto S,Delgado I,Anesi A,Dexpert S,Aubert A,Beau C,Forestier D,Ledaguenel P,Magne E,Mattivi F,Capuron Ldoi
10.3389/fimmu.2020.00557subject
Has Abstractpub_date
2020-04-15 00:00:00pages
557issn
1664-3224journal_volume
11pub_type
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
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journal_title:Frontiers in immunology
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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pub_type: 杂志文章,已发布勘误
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.02101
更新日期:2018-09-12 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2017.00639
更新日期:2017-06-19 00:00:00
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journal_title:Frontiers in immunology
pub_type:
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abstract::Adoptive cell transfer therapy is currently one of the most promising approaches for cancer treatment. This therapy has some limitations, however, such as the dispersion of in vivo-administered cells, causing only a small proportion to reach the tumor. Nanotechnological approaches could offer a solution for this drawb...
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journal_title:Frontiers in immunology
pub_type: 杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
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journal_title:Frontiers in immunology
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.02722
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.01499
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journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.00467
更新日期:2020-03-17 00:00:00
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更新日期:2020-10-05 00:00:00
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journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2016.00656
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