| Autor: |
Chong Wang, Juan Zhong, Li Wang, Linglin Fu |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Journal of Functional Foods, Vol 121, Iss , Pp 106421- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1756-4646 |
| DOI: |
10.1016/j.jff.2024.106421 |
| Popis: |
Specific algal polysaccharides exhibit significant anti-allergic activity. B cell class switch recombination (CSR) is a crucial step in food allergies, however, the role of polysaccharides in regulating CSR remains unclear. To investigate the regulation of B cell CSR by algal polysaccharides, an in vitro IgE-type CSR cell model was used to screen for active algal polysaccharides, and four active polysaccharides were identified. In a food allergy mouse model, Undaria pinnatifida polysaccharides (UPP) and phosphoryl oligosaccharides (POS) suppressed allergic responses and reduced the proliferation of IgE+ B cells. Transcriptome sequencing of B cells identified LCN2 as a potential target of POS, and inhibition of LCN2 blocked the activity of POS on CSR. These findings demonstrated the efficacy of POS in regulating B cell CSR and alleviating allergic responses and revealed the underlying mechanisms. This work provided data and theoretical support for the development of polysaccharide-based functional foods for individuals with allergies. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect