An antitumor arabinan from Glehnia littoralis activates immunity and inhibits angiogenesis

Copyright © 2024 Elsevier B.V. All rights reserved..

Glehnia littoralis is an edible plant with significant medicinal value. To further elucidate the potential functional components for developing antitumor agents or functional foods, the polysaccharides in this plant were investigated, and a homogeneous polysaccharide, GLP90-2, was obtained through extraction and ethanol precipitation. By employing methylation, GC-MS, FT-IR, and NMR analysis, GLP90-2 was identified as an arabinan having a molecular weight of 7.76 × 103 g/mol and consisting of three types of residues: α-l-Araf-(1→, →5)-α-l-Araf-(1→, and →3,5)-α-l-Araf-(1→. The subsequent functional analysis revealed that GLP90-2 suppressed tumor development and metastasis in a zebrafish model. Mechanistic studies have shown that GLP90-2 promoted the maturation of DC2.4 cells and macrophages and enhanced the expression of immune-related cytokines, which may be attributed to the interaction between GLP90-2 and TLR-4. Additionally, GLP90-2 exhibited a strong interaction with PD-1, contributing to the activation of immunity. Furthermore, GLP90-2 suppressed angiogenesis in the transgenic zebrafish model, and this impact may be ascribed to the modulation of the VEGF/VEGFR-2 signaling pathway. All the results indicate that GLP90-2 demonstrates a strong tumor immunotherapy effect in vivo and has high potential for development.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:263

Enthalten in:

International journal of biological macromolecules - 263(2024), Pt 2 vom: 25. März, Seite 130242

Sprache:

Englisch

Beteiligte Personen:

Liu, Wenhui [VerfasserIn]
Li, Kexin [VerfasserIn]
Zhang, Han [VerfasserIn]
Li, Yeling [VerfasserIn]
Lin, Zhen [VerfasserIn]
Xu, Jing [VerfasserIn]
Guo, Yuanqiang [VerfasserIn]

Links:

Volltext

Themen:

11078-27-6
Antitumor immunity
Araban
Journal Article
Molecular interactions
PD-1
Polysaccharide
Polysaccharides
VEGF

Anmerkungen:

Date Completed 27.03.2024

Date Revised 27.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijbiomac.2024.130242

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368590380