Liensinine attenuates inflammation and oxidative stress in spleen tissue in an LPS-induced mouse sepsis model

J Zhejiang Univ Sci B. 2023 Feb 15;24(2):185-190. doi: 10.1631/jzus.B2200340.
[Article in English, Chinese]

Abstract

Sepsis is a complex syndrome caused by multiple pathogens and involves multiple organ failure, particularly spleen dysfunction. In 2017, the worldwide incidence was 48.9 million sepsis cases and 11 million sepsis-related deaths were reported (Rudd et al., 2020). Inflammation, oxidative stress, and apoptosis are the most common pathologies seen in sepsis. Liensinine (LIE) is a bisbenzylisoquinoline-type alkaloid extracted from the seed embryo of Nelumbo nucifera. Lotus seed hearts have high content of LIE which mainly has antihypertensive and antiarrhythmic pharmacological effects. It can exert anti-carcinogenic activity by regulating cell, inflammation, and apoptosis signaling pathways (Manogaran et al., 2019). However, its protective effect from sepsis-induced spleen damage is unknown. In this research, we established a mouse sepsis model induced by lipopolysaccharide (LPS) and investigated the protective effects of LIE on sepsis spleen injury in terms of inflammatory response, oxidative stress, and apoptosis.

本研究基于脂多糖(LPS)诱导的小鼠脓毒症模型,探讨莲心碱(LIE)对脓毒症中脾损伤的潜在保护作用。脓毒症常伴有炎症、氧化应激和细胞凋亡,并将导致身体器官功能障碍,对脾脏损伤尤甚。将30只小鼠随机分为5组(n=6):对照组、LPS (10 mg/kg)、LIE(10 mg/kg)+LPS、LIE (20 mg/kg)+LPS和LIE (40 mg/kg)+LPS。脾脏损伤通过苏木精–伊红染色(H&E)确定;采用定量聚合酶链反应(qPCR)检测脾脏组织中肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、IL-10、IL-1β和一氧化氮合酶(iNOS)的转录水平。同时对包括丙二醛(MDA)、过氧化氢酶(CAT)、超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)在内的氧化应激指标进行测定;采用TUNEL法检测细胞凋亡水平。结果显示,LIE可减轻脾脏组织病理学损伤并抑制细胞凋亡,显著降低促炎因子TNF-α、IL-6、IL-1β和iNOS的转录水平,并增加抗炎因子IL-10的表达。此外,LIE预处理后可降低MDA脂质过氧化指标,增强CAT、SOD和GSH-Px的抗氧化活性。综上所述,LIE具有潜在的抗氧化和抗炎能力,可减轻脾脏在脓毒症中的损伤。.

本研究基于脂多糖(LPS)诱导的小鼠脓毒症模型,探讨莲心碱(LIE)对脓毒症中脾损伤的潜在保护作用。脓毒症常伴有炎症、氧化应激和细胞凋亡,并将导致身体器官功能障碍,对脾脏损伤尤甚。将30只小鼠随机分为5组(n=6):对照组、LPS (10 mg/kg)、LIE(10 mg/kg)+LPS、LIE (20 mg/kg)+LPS和LIE (40 mg/kg)+LPS。脾脏损伤通过苏木精–伊红染色(H&E)确定;采用定量聚合酶链反应(qPCR)检测脾脏组织中肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、IL-10、IL-1β和一氧化氮合酶(iNOS)的转录水平。同时对包括丙二醛(MDA)、过氧化氢酶(CAT)、超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-Px)在内的氧化应激指标进行测定;采用TUNEL法检测细胞凋亡水平。结果显示,LIE可减轻脾脏组织病理学损伤并抑制细胞凋亡,显著降低促炎因子TNF-α、IL-6、IL-1β和iNOS的转录水平,并增加抗炎因子IL-10的表达。此外,LIE预处理后可降低MDA脂质过氧化指标,增强CAT、SOD和GSH-Px的抗氧化活性。综上所述,LIE具有潜在的抗氧化和抗炎能力,可减轻脾脏在脓毒症中的损伤。

MeSH terms

  • Animals
  • Apoptosis
  • Inflammation
  • Lipopolysaccharides* / pharmacology
  • Mice
  • Oxidative Stress
  • Sepsis*
  • Spleen

Substances

  • liensinine
  • Lipopolysaccharides