In silico and functional analyses of immunomodulatory peptides encrypted in the human gut metaproteome

Autor: Noelia Cambeiro-Pérez, Claudio Hidalgo-Cantabrana, Marco Antonio Moro-García, Aitor Blanco-Míguez, Florentino Fdez-Riverola, Sabino Riestra, Anália Lourenço, Rebeca Alonso-Arias, Abelardo Margolles, Elena Martínez-Carballo, Borja Sánchez
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Functional Foods, Vol 70, Iss , Pp 103969- (2020)
Druh dokumentu: article
ISSN: 1756-4646
DOI: 10.1016/j.jff.2020.103969
Popis: This work supports the massive presence of potential immunomodulatory peptides in the human gut metaproteome. These peptides were identified through the MAHMI database as potentially anti-inflammatory, and sixteen of them synthesized for characterize their mechanism of action. From them, peptide HM14 was encrypted in an extracellular protein produced by Bifidobacterium longum, a common member of the human microbiota, and displayed the highest anti-inflammatory capability. Molecular mechanism of action of HM14 pointed to a specific interaction between this immunomodulatory peptide and antigen presenting cells, which resulted in a higher formation of iTreg cells. Moreover, HM14 was effective in decreasing pro-inflammatory parameters in PBMCs isolated from a cohort of Crohn’s patients. Finally, non-targeted metabolomics confirmed the ability of HM14 to modulate the metabolic activity of PBMCs to fulfil its energy and biosynthetic requirements. Overall, our combined in silico/multiomics approach supports the human gut metaproteome as a source for immunomodulatory peptides.
Databáze: Directory of Open Access Journals