Effects of Mahuang Lianqiao Chixiaodou Decoction Regulating C3a/C3aR Signaling Pathway on Inflammatory Response of IgA Nephropathy Rats
10.19879/j.cnki.1005-5304.202412085
- VernacularTitle:麻黄连翘赤小豆汤调控C3a/C3aR信号通路对IgA肾病大鼠炎症反应的影响
- Author:
Ting SONG
1
;
Guangyu SHENG
1
;
Yaheng ZHANG
1
;
Wei RUAN
1
;
Xuejun YANG
1
Author Information
1. 上海中医药大学附属曙光医院,上海中医药大学中医肾病研究所,上海中医药大学肝肾疾病病证教育部重点实验室,上海市中医临床重点实验室,上海 201203
- Publication Type:Journal Article
- Keywords:
IgA nephropathy;
Mahuang Lianqiao Chixiaodou Decoction;
inflammatory response;
complement activation;
C3a/C3aR signaling pathway;
rats
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2025;32(9):76-82
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effects of Mahuang Lianqiao Chixiaodu Decoction on IgA nephropathy model rats and its mechanism based on C3a/C3aR signaling pathway.Methods Nine rats were randomly selected from 30 male Wistar rats as control group(9 rats),the remaining 21 rats were prepared IgA nephropathy models using the bovine serum albumin-lipopolysaccharide-carbon tetrachloride complex immunization method.Finally 18 successfully modeled rats were randomly divided into model group,Chinese medicine group and Western medicine group,Chinese medicine group was treated with Mahuang Lianqiao Chixiaodou Decoction suspension by gavage,the Western medicine group was treated with losartan suspension by gavage,the control group and model group were treated with normal saline by gavage.The intervention lasted for 4 weeks.HE,PAS and Masson staining were used to observe the morphology of renal tissue,the expression of IgA in glomerular mesangial area was detected by immunofluorescence,the contents of IL-6,TNF-α and C3a in renal tissue were detected by ELISA,the protein expressions of C3/C3b/C3c,C3aR,CFB,TLR4 and NF-κBp65 in renal tissue were detected by Western blot,the positive expressions of C3,C3aR and CFB in renal tissue were detected by immunohistochemistry.Results Compared with the control group,the model group showed compensatory expansion of large glomeruli,proliferation of mesangial cells,expansion of mesangial matrix,and strong positive IgA immune complex deposition in mesangial area(P<0.01),the contents of IL-6,TNF-α and C3a in renal tissue significantly increased(P<0.01),the expressions of C3/C3b/C3c,C3aR,CFB,TLR4 and NF-κBp65 protein in renal tissue increased(P<0.05),the positive expressions of C3,C3aR and CFB in renal tissue significantly increased(P<0.01).Compared with the model group,the pathological damage of Chinese medicine group and Western medicine group was alleviated,the deposition of IgA immune complex was significantly reduced(P<0.01),the contents of IL-6 and TNF-α in renal tissue significantly decreased(P<0.01,P<0.05),and the expressions of C3/C3b/C3c,C3aR,CFB,TLR4 and NF-κBp65 protein in renal tissue decreased(P<0.01,P<0.05),the positive expressions of C3,C3aR and CFB in renal tissues decreased(P<0.01).Conclusion Mahuang Lianqiao Chixiaodou Decoction can inhibit the inflammatory response and improve renal pathological damage in IgA nephropathy rats,and the mechanism may be related to the inhibition of alternative pathway complement activation and the regulation of C3a/C3aR and TLR4/NF-κB signaling pathways.
