CN: 32-1845/R
ISSN: 2095-6975
Cite this paper:
LIU Zhen-Zhen, WENG Hong-Bo, ZHANG Li-Jie, PAN Ling-Yu, SUN Wei, CHEN Hai-Xia, CHEN Mei-Yu, ZENG Tao, ZHANG Yun-Yi, CHEN Dao-Feng, LI Hong. Bupleurum polysaccharides ameliorated renal injury in diabetic mice associated with suppression of HMGB1-TLR4 signaling[J]. Chinese Journal of Natural Medicines, 2019, 17(9): 641-649

Bupleurum polysaccharides ameliorated renal injury in diabetic mice associated with suppression of HMGB1-TLR4 signaling

LIU Zhen-Zhen1, WENG Hong-Bo1, ZHANG Li-Jie1, PAN Ling-Yu1, SUN Wei1, CHEN Hai-Xia1, CHEN Mei-Yu1, ZENG Tao3, ZHANG Yun-Yi1, CHEN Dao-Feng2, LI Hong1
1 Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai 201203, China;
2 Department of Pharmacognosy, School of Pharmacy, Fudan University, Shanghai 201203, China;
3 Clinical trial institution, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 201203, China
Bupleurum polysaccharides (BPs) is isolated from Bupleurum smithii var. parvifolium, a key traditional Chinese medicine. The study was to investigate the effects of BPs on diabetic kidney injury. After two intraperitoneal injections of streptozotozin (STZ) 100 mg·kg-1, renal injury in diabetic mice was induced and BPs was orally administrated at dosages of 30 and 60 mg·kg-1·d-1. The STZ injected mice developed renal function damage, renal inflammation and fibrosis known as diabetic kidney disease (DKD). BPs significantly reduced serum creatinine level and urinary albumin excretion rate, with the attenuated swelling of kidneys. BPs treatment obviously alleviated the pathological damage of renal tissue. The progression of renal injury in BPs treated mice was inhibited with less expression of type IV collagen (Col IV), fibronectin (FN) and α-smooth muscle actin (α-SMA). The inhibition of inflammation in kidney was associated with the reduced level of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6). BPs administration suppressed the over-expression of toll like receptor 4 (TLR4) and high-mobility group box 1 (HMGB1) with lowered activity of nuclear factor kappa B (NF-κB) in renal tissue of diabetic mice. Oral administration of BPs effectively prevented the development of renal injury in diabetic mice. This study suggested that the protection provided by BPs might affect through the interruption of HMGB1-TLR4 pathway, leading to the inhibition of renal inflammation and fibrotic process.
Key words:    Renal injury    Bupleurum    High-mobility group box    Toll-like receptor 4    Inflammation    Renal fibrosis    Polysaccharides   
Received: 2019-01-14   Revised:
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Articles by LIU Zhen-Zhen
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Articles by ZHANG Li-Jie
Articles by PAN Ling-Yu
Articles by SUN Wei
Articles by CHEN Hai-Xia
Articles by CHEN Mei-Yu
Articles by ZENG Tao
Articles by ZHANG Yun-Yi
Articles by CHEN Dao-Feng
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