School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, PR China.
College of Life Science, Shandong Agricultural University, Taian, 271018, PR China.
Food Funct. 2022 Oct 31;13(21):11125-11141. doi: 10.1039/d2fo01349e.
Liver fibrosis is a serious global public health problem, owing to a lack of effective treatment. polysaccharides (CP), isolated from , possess multiple biological activities. In our work, water-soluble polysaccharides (CPa) from CP were obtained by column chromatography. We attempted to investigate the anti-liver fibrosis ability of CPa and the underlying mechanisms of its activity against liver fibrosis and , as well as its structure. results showed that CPa reduced the release of inflammatory factors and apoptosis by modulating the TLR4/MyD88/NF-κB, Bcl-2/Bax and caspase family signaling pathways, thereby attenuating serum enzymes, ROS, α-SMA, collagen III, TGFβ1, p-Smad3, and collagen volume fraction, and increasing the defense capacity of the antioxidant defense system in tetrachloride (CCl)-induced liver fibrosis mice. The result was used to verify that, , CPa regulated the TLR4/MyD88/NF-κB, Bcl-2/Bax and caspase family signaling pathways to prevent the activation of HSCs and accelerate HSCs apoptosis in activated LX-2 cells. Thus, CPa could attenuate liver fibrosis by mediating inflammation and apoptosis. Meantime, the structural analysis showed that CPa is a polysaccharide with α- and β-configurations including Fuc, Man, Gal and Glc with a of 524 kDa. These findings indicate that CPa could be developed into functional foods and drugs against liver fibrosis.
肝纤维化是一个严重的全球性公共卫生问题,由于缺乏有效的治疗方法。从 中分离得到的多糖(CP)具有多种生物活性。在我们的工作中,通过柱层析从 CP 中获得了水溶性多糖(CPa)。我们试图研究 CPa 的抗肝纤维化能力及其对肝纤维化的作用机制,以及其结构。结果表明,CPa 通过调节 TLR4/MyD88/NF-κB、Bcl-2/Bax 和半胱天冬酶家族信号通路,降低炎症因子和细胞凋亡的释放,从而减轻血清酶、ROS、α-SMA、胶原 III、TGFβ1、p-Smad3 和胶原容积分数,增强四氯化碳(CCl)诱导的肝纤维化小鼠的抗氧化防御系统的防御能力。结果用于验证 CPa 通过调节 TLR4/MyD88/NF-κB、Bcl-2/Bax 和半胱天冬酶家族信号通路来防止活化的 HSCs 激活,并加速活化的 LX-2 细胞中 HSCs 的凋亡。因此,CPa 可以通过介导炎症和凋亡来减轻肝纤维化。同时,结构分析表明,CPa 是一种具有α-和β构型的多糖,包括 Fuc、Man、Gal 和 Glc,分子量为 524 kDa。这些发现表明,CPa 可以开发成对抗肝纤维化的功能性食品和药物。