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Longan Polysaccharide as Adjuvant for Cyclophosphamide-Induced Side Effects in Murine Model

文献类型: 外文期刊

作者: Bai, Yajuan 1 ; Fan, Bei 1 ; Wang, Fengzhong 1 ; Zhang, Mingwei 4 ;

作者机构: 1.Chinese Acad Agr Sci CAAS, Inst Food Sci & Technol, Beijing 100193, Peoples R China

2.Chinese Acad Agr Sci, Natl Nanfan Res Inst Sanya, Sanya 572024, Peoples R China

3.Chinese Acad Agr Sci CAAS, Inst Western Agr, Changji 831100, Peoples R China

4.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou 510610, Peoples R China

关键词: longan polysaccharide; immunoregulation; antioxidant; cyclophosphamide; murine model; in vitro intestinal inflammation model

期刊名称:FOODS ( 影响因子:5.1; 五年影响因子:5.6 )

ISSN:

年卷期: 2025 年 14 卷 16 期

页码:

收录情况: SCI

摘要: Identifying effective adjuvants to prevent and alleviate the adverse effects of chemotherapy remains a critical challenge in cancer therapy. This study investigated the protective effects of longan polysaccharide (LP) against cyclophosphamide-induced immunosuppression and oxidative stress in mice. Our findings revealed that LP administration significantly improved systemic immune function, as evidenced by marked increases in serum immunoglobulin levels (IgG2a: 1.82-fold, IgG2b: 1.46-fold, IgM: 1.26-fold, and IgG1: 1.22-fold) and key cytokines (IL-10: 1.53-fold, IL-12: 1.22-fold, and IFN-gamma: 1.20-fold), accompanied by substantial reductions in pro-inflammatory mediators (TGF-beta 1: 28.72% decrease and IL-21: 36.28% decrease). Concurrently, LP restored oxidative balance by increasing SOD, GSH, and NO levels in multiple organs (liver, kidneys, and small intestine) and serum. Mechanistic studies using an in vitro Caco-2/RAW264.7 coculture system revealed that four purified LP fractions (LPIa-LPIVa) effectively suppressed NF-kappa B pathway activation through downregulation of TLR4 expression, reduction of the p-I kappa B-alpha/I kappa B-alpha ratio, and inhibition of nuclear NF-kappa B translocation. These molecular effects correlated with decreased production of inflammatory mediators (TNF-alpha, IL-6, IL-8, iNOS, and NO). Collectively, these findings provide compelling evidence that LP possesses dual immunomodulatory and antioxidant capabilities, highlighting its potential as a natural adjuvant for alleviating chemotherapy-induced side effects.

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