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1.天津医科大学 研究生院,天津 300070
2.天津红日药业股份有限公司,天津 301700
3.天津市医药科学研究所,天津 300020
肖懿,在读硕士,从事重症急性胰腺炎药理学研究,Tel:022-58077666,E-mail:1341820944@qq.com
刘洪斌,博士,研究员,从事中西医结合治疗肝胆胰疾病的药理学研究,Tel:022-58077666,E-mail:jtss@sina.com
收稿日期:2021-12-02,
网络出版日期:2022-02-11,
纸质出版日期:2022-04-05
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肖懿,冯志乔,张桂贤等.血必净注射液调节线粒体N-甲酰肽/NLRP3炎症通路对重症急性胰腺炎大鼠模型的治疗机制[J].中国实验方剂学杂志,2022,28(07):88-94.
XIAO Yi,FENG Zhi-qiao,ZHANG Gui-xian,et al.Xuebijing Injection Regulates Mitochondrial N-formyl Peptides/NLRP3 Inflammatory Pathway to Treat Severe Acute Pancreatitis in Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(07):88-94.
肖懿,冯志乔,张桂贤等.血必净注射液调节线粒体N-甲酰肽/NLRP3炎症通路对重症急性胰腺炎大鼠模型的治疗机制[J].中国实验方剂学杂志,2022,28(07):88-94. DOI: 10.13422/j.cnki.syfjx.20220738.
XIAO Yi,FENG Zhi-qiao,ZHANG Gui-xian,et al.Xuebijing Injection Regulates Mitochondrial N-formyl Peptides/NLRP3 Inflammatory Pathway to Treat Severe Acute Pancreatitis in Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(07):88-94. DOI: 10.13422/j.cnki.syfjx.20220738.
目的
2
探讨血必净注射液(XBJ)对牛磺胆酸钠(Na-Tc)诱导重症急性胰腺炎(SAP)大鼠模型的治疗作用。
方法
2
将40只大鼠随机均分为5组,分别为假手术组、SAP模型组、XBJ低、中、高剂量组(4、8、12 mL·kg·d
-1
)。以胆胰管内逆行注射Na-Tc(1 mL·kg
-1
)制备SAP模型,XBJ在造模前3 d和造模后0.5 h进行腹腔注射给药。测量大鼠腹水量和胰腺组织湿质量比;采用苏木素-伊红(HE)染色观察胰腺组织病理变化;采用免疫组化检测胰腺组织甲酰肽受体1(FPR1)和核苷酸结合寡聚化结构域样受体3(NLRP3)的蛋白表达水平;采用蛋白免疫印迹法(Western blot)检测大鼠血浆中NADH-泛素氧化还原酶链1~6(MT-ND1、MT-ND2、MT-ND3、MT-ND4、MT-ND5、MT-ND6)的表达情况。
结果
2
与假手术组比较,SAP模型组腹水量和胰腺湿质量比明显增加(
P
<
0.05),胰腺组织病变严重,病理总评分明显上升(
P
<
0.05),胰腺组织FPR1和NLRP3表达明显增多(
P
<
0.05),血浆中MT-ND2表达明显降低(
P
<
0.05),MT-ND1、MT-ND3和MT-ND6均明显增加(
P
<
0.05),MT-ND4和MT-ND5无明显变化;与SAP模型组比较,XBJ各剂量治疗组大鼠腹水量和胰腺湿质量比显著减少(
P
<
0.01),胰腺病变均有不同程度地改善,且胰腺组织FPR1和NLRP3表达均显著降低(
P
<
0.01),血浆中MT-ND1、MT-ND3和MT-ND6表达均显著下降(
P
<
0.01),MT-ND4表达下降,其中XBJ高剂量组尤甚(
P
<
0.01),MT-ND5表达差异无统计学意义。
结论
2
血必净注射液可有效治疗大鼠SAP,其机制可能与拮抗部分线粒体
N
-甲酰肽和FPR1/NLRP3介导的过度炎症反应相关。
Objective
2
To investigate the therapeutic effect of Xuebijing injection (XBJ) on sodium taurocholate (Na-Tc)-induced severe acute pancreatitis (SAP) in rats.
Method
2
Forty rats were randomly assigned into 5 groups: sham operation group, SAP model group, and low-, medium-, and high-dose (4, 8, 12 mL·kg·d
-1
, respectively) XBJ groups. SAP model was established by retrograde injection of Na-Tc (1 mL·kg
-1
) into the biliary and pancreatic ducts. XBJ was injected intraperitoneally 3 days before and 0.5 h after modeling. The ascitic fluid volume and the pancreas weight-to-body weight ratio were measured. The pathological changes of pancreatic tissue were observed via hematoxylin-eosin (HE) staining. The protein levels of formyl peptide receptor 1 (FPR1) and nucleotide-binding oligomerization domain-like receptor 3 (NLRP3) in pancreatic tissue were detected by immunohistochemistry. Western blot was employed to determine the expression levels of NADH-ubiquinone oxidoreductase chains 1-6 (MT-ND1, MT-ND2, MT-ND3, MT-ND4, MT-ND5, and MT-ND6) in rat plasma.
Result
2
Compared with sham operation group, the SAP model group showcased increased ascitic fluid volume and pancreas weight-to-body weight ratio (
P
<
0.05), serious lesions in pancreatic tissue, increased total pathological score (
P
<
0.05), and up-regulated protein levels of FPR1 and NLRP3 in pancreatic tissue (
P
<
0.05). The model group had lower MT-ND2 level (
P
<
0.05) and higher MT-ND1, MT-ND3, and MT-ND6 levels in plasma (
P
<
0.05) than the sham operation group, while MT-ND4 and MT-ND5 had no significant differences between the two groups. Compared with SAP model group, the XBJ treatment decreased ascitic fluid volume and pancreas weight-to-body weight ratio (
P
<
0.01), ameliorated pancreatic lesions, and down-regulated the protein levels of FPR1 and NLRP3 in pancreatic tissue (
P
<
0.01). The treatments, especially high-dose XBJ (
P
<
0.01), down-regulated the expression of MT-ND1 (
P
<
0.01), MT-ND3 (
P
<
0.01), MT-ND6 (
P
<
0.01), and MT-ND4 and did not change that of MT-ND5.
Conclusion
2
XBJ may antagonize partial mitochondrial
N
-formyl peptides and excessive inflammatory response mediated by FPR1/NLRP3 to treat SAP in rats.
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