Scholarlink

<p>Plant-derived exosome-like nanoparticles (PELNs) offer both prophylactic and therapeutic potential for ulcerative colitis (UC). Following the successful isolation of <i>Sargassum fusiforme</i>-derived exosome-like nanoparticles (SELNs), this study investigated the protective efficacy of SELNs in mitigating <i>Citrobacter rodentium</i>-induced colitis. SELNs administration exhibited prolonged gut retention and colon-targeting efficacy and significantly alleviated colitis symptoms, including body weight loss, colonic shortening, and histological damage, while promoting tight junction and MUC2 protein expression. SELNs suppressed the TLR4/MyD88/NF-κB cascade, a key inflammatory pathway, resulting in downregulated pro-inflammatory cytokines (TNF-α, IL-6, IL-1β) and upregulated anti-inflammatory cytokines (IL-10, IL-22), coupled with iNOS abrogation. Furthermore, SELNs modulated the gut microbiota compositon, especially increasing the abundance of <i>Muribaculum intestinale</i>, and promoted the production of short-chain fatty acids (SCFAs). Collectively, these findings suggest that SELNs possess significant promise as a functional food ingredient for colitis through intestinal homeostasis modulation and inflammatory pathway regulation. Given their natural source and potent anti‑inflammatory effects, SELNs hold good potential for commercialization as a novel nutraceutical for inflammatory bowel disease intervention.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sargassum fusiforme-derived Exosome-like Nanoparticles Suppress TLR4/MyD88/NF-κB Pathway to Alleviate Colitis via Modulating Gut Microbiota

  • 期刊论文

  • 发表日期：

    2026年1月12日

查看全文
  • Hong Chang,
  • Xinru Wang,
  • Donglin Sui,
  • Yi Liu,
  • Xiaodong Xia,
  • Ningbo Qin

摘要

Plant-derived exosome-like nanoparticles (PELNs) offer both prophylactic and therapeutic potential for ulcerative colitis (UC). Following the successful isolation of Sargassum fusiforme-derived exosome-like nanoparticles (SELNs), this study investigated the protective efficacy of SELNs in mitigating Citrobacter rodentium-induced colitis. SELNs administration exhibited prolonged gut retention and colon-targeting efficacy and significantly alleviated colitis symptoms, including body weight loss, colonic shortening, and histological damage, while promoting tight junction and MUC2 protein expression. SELNs suppressed the TLR4/MyD88/NF-κB cascade, a key inflammatory pathway, resulting in downregulated pro-inflammatory cytokines (TNF-α, IL-6, IL-1β) and upregulated anti-inflammatory cytokines (IL-10, IL-22), coupled with iNOS abrogation. Furthermore, SELNs modulated the gut microbiota compositon, especially increasing the abundance of Muribaculum intestinale, and promoted the production of short-chain fatty acids (SCFAs). Collectively, these findings suggest that SELNs possess significant promise as a functional food ingredient for colitis through intestinal homeostasis modulation and inflammatory pathway regulation. Given their natural source and potent anti‑inflammatory effects, SELNs hold good potential for commercialization as a novel nutraceutical for inflammatory bowel disease intervention.