The effect of edible bird's nests on the expression of MHC-II and costimulatory molecules of C57BL/6 mouse splenocytes

Bibliographic Details
Title: The effect of edible bird's nests on the expression of MHC-II and costimulatory molecules of C57BL/6 mouse splenocytes
Authors: Theerawat Dobutr, Nisachon Jangpromma, Rina Patramanon, Jureerut Daduang, Sompong Klaynongsruang, Saowanee Poopornchai, Tomio Yabe, Sakda Daduang
Source: Biochemistry and Biophysics Reports, Vol 35, Iss , Pp 101534- (2023)
Publisher Information: Elsevier, 2023.
Publication Year: 2023
Collection: LCC:Biology (General)
LCC:Biochemistry
Subject Terms: Edible bird's nest, MHC-II, Costimulatory molecules, Splenocytes, Biology (General), QH301-705.5, Biochemistry, QD415-436
More Details: The glutinous nest that builds by the saliva secretion of swiftlet is recognizable as an edible bird's nest (EBN). It enriched a medicinal value and was regarded as supplementary food that exerts various beneficial health effects, especially immune boosters. This study's objective was to determine the impact of EBN on the expression of MHC-II and costimulatory molecules (CD86 and CD80) related to the initiation of T-cell activation. Both rEBN and pEBN samples were prepared with simulated gastrointestinal digestion for enhancing the bioaccessibility of bioactive compounds. Our result showed that digested EBN samples slightly influence the upregulation of MHC-II, CD86, and CD80 in gene expression of LPS-stimulated Raw 264.7 cells. The concern of endotoxin contamination in EBN samples, which may cause a false-positive result, was measured by quantitative PCR. We found that the inflammatory genes (IL-1β and TNF-α) were not induced by EBN treatments. Moreover, cell surface protein expression in splenocytes treated with EBN was assessed using flow cytometric analysis. Digested EBN samples demonstrated their capacity to promote the elevation of MHC-II, CD86, and CD80 cell surface protein expression. Finally, the digested-EBN-treated splenocytes only exhibited a specific response in the T-cells population. Thus, EBN is a source of the bioactive compound that has been proposed to exert a role in the stimulation of both MHC-II and costimulatory molecules for TCR/pMHC-II interaction leading to T-cell activation.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2405-5808
Relation: http://www.sciencedirect.com/science/article/pii/S2405580823001152; https://doaj.org/toc/2405-5808
DOI: 10.1016/j.bbrep.2023.101534
Access URL: https://doaj.org/article/06009f96a90842c785a2331171f8d160
Accession Number: edsdoj.06009f96a90842c785a2331171f8d160
Database: Directory of Open Access Journals
More Details
ISSN:24055808
DOI:10.1016/j.bbrep.2023.101534
Published in:Biochemistry and Biophysics Reports
Language:English