The underappreciated diversity of bile acid modifications.
Cell
; 187(7): 1801-1818.e20, 2024 Mar 28.
Article
en En
| MEDLINE
| ID: mdl-38471500
ABSTRACT
The repertoire of modifications to bile acids and related steroidal lipids by host and microbial metabolism remains incompletely characterized. To address this knowledge gap, we created a reusable resource of tandem mass spectrometry (MS/MS) spectra by filtering 1.2 billion publicly available MS/MS spectra for bile-acid-selective ion patterns. Thousands of modifications are distributed throughout animal and human bodies as well as microbial cultures. We employed this MS/MS library to identify polyamine bile amidates, prevalent in carnivores. They are present in humans, and their levels alter with a diet change from a Mediterranean to a typical American diet. This work highlights the existence of many more bile acid modifications than previously recognized and the value of leveraging public large-scale untargeted metabolomics data to discover metabolites. The availability of a modification-centric bile acid MS/MS library will inform future studies investigating bile acid roles in health and disease.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Ácidos y Sales Biliares
/
Espectrometría de Masas en Tándem
/
Metabolómica
/
Microbioma Gastrointestinal
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Cell
Año:
2024
Tipo del documento:
Article
País de afiliación:
Estados Unidos