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Liu F, Wang Y, Bello BK, Fan H, Liu G, Zhang X, Zhang T, Dong Z, Feng X, Chen Y, Teng D, Dong J. Protective effects of scutellarin on acute alcohol gastric injury. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01131-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Tichati L, Trea F, Ouali K. Potential Role of Selenium Against Hepatotoxicity Induced by 2,4-Dichlorophenoxyacetic Acid in Albino Wistar Rats. Biol Trace Elem Res 2020; 194:228-236. [PMID: 31190189 DOI: 10.1007/s12011-019-01773-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 06/05/2019] [Indexed: 01/18/2023]
Abstract
The present study aims to investigate the hepatoprotective effects of selenium on toxicity induced by 'Désormone Lourd' based on 2,4-dichlorophenoxyacetic acid in Wistar rats. Male Wistar rats were divided into four groups and were treated orally. The (C) group was used as a control, while the test groups were treated with Se (0.2 mg/kg b.w.), 2,4-D (5 mg/kg b.w.) or both (2,4-D + Se) for 4 weeks. Our results showed that chronic treatment with 2,4-D resulted in hepatotoxicity, as revealed by an increase in liver function markers Aminotransferases (ALT, AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH) and total bilirubin (TB), along with reduced total protein content and albumin. An overall pro-oxidant effect was associated with a decrease in the reduced glutathione (GSH) content and the enzymatic activity of glutathione-S-transferase (GST), catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx), and an increase in malondialdehyde (MDA) and protein carbonyl levels (PCO). Microscopic observation of liver in 2,4-D-treated rats reveals lesions, which results in perivascular inflammatory infiltration around the vessel, sinusoidal dilatation and vacuolization of hepatocytes. However, selenium supplementation in 2,4-D-treated rats elicited a reduction in the toxic effects of the pesticide by improving the studied parameters, which was confirmed by the histological study of the liver. Selenium appears to have a promising prophylactic effect through its effective anti-radical action against the hepatotoxic effects of 2,4-D.
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Affiliation(s)
- Lazhari Tichati
- Laboratory of Environmental Biosurveillance (LBSE), Department of Biology, Faculty of Sciences, Badji Mokhtar University, BP 12 Sidi Amar, 23000, Annaba, Algeria
| | - Fouzia Trea
- Laboratory of Environmental Biosurveillance (LBSE), Department of Biology, Faculty of Sciences, Badji Mokhtar University, BP 12 Sidi Amar, 23000, Annaba, Algeria
| | - Kheireddine Ouali
- Laboratory of Environmental Biosurveillance (LBSE), Department of Biology, Faculty of Sciences, Badji Mokhtar University, BP 12 Sidi Amar, 23000, Annaba, Algeria.
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Lv WL, Liu Q, An JH, Song XY. Scutellarin inhibits hypoxia-induced epithelial-mesenchymal transition in bladder cancer cells. J Cell Physiol 2019; 234:23169-23175. [PMID: 31127618 DOI: 10.1002/jcp.28883] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 04/24/2019] [Accepted: 04/30/2019] [Indexed: 12/17/2022]
Abstract
Scutellarin, an active component of flavonoid, displays a variety of physiological actions and has been applied for the treatment of diverse diseases including hypertension and cerebral infarction as well as cerebral thrombosis. In recent time, Scutellarin has been demonstrated to possess the anticancer activity. But the biological significance of Scutellarin in bladder cancer (BC) remains to be elucidated. In the current study, we explored the specific effect of Scutellarin on BC progression. We found that Scutellarin inhibited hypoxia-induced BC cell migration and invasion in vitro as well as suppressed hypoxia-induced BC metastasis in vivo. Moreover, Scutellarin significantly reversed hypoxia-promoted epithelial-mesenchymal transition (EMT) in BC cells and the PI3K/Akt and MAPK pathways were implicated in the suppressive effect. Taken together, we suggested the potential value of Scutellarin as a novel anticancer agent for BC treatment.
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Affiliation(s)
- Wei-Ling Lv
- Department of Pharmacy, Huaihe Hospital of Henan University, Kaifeng, China
| | - Qian Liu
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng, China
| | - Ji-Hong An
- Department of Pharmacy, Huaihe Hospital of Henan University, Kaifeng, China
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Deng W, Han W, Fan T, Wang X, Cheng Z, Wan B, Chen J. Scutellarin inhibits human renal cancer cell proliferation and migration via upregulation of PTEN. Biomed Pharmacother 2018; 107:1505-1513. [PMID: 30257368 DOI: 10.1016/j.biopha.2018.08.127] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/18/2018] [Accepted: 08/24/2018] [Indexed: 10/28/2022] Open
Abstract
BACKGROUND Scutellarin is a naturally flavone glycoside that has been shown to exhibit anti-proliferative and anti-apoptotic activities among various human malignancies. However, the anti-cancer effect of Scutellarin in Renal cell carcinoma (RCC) and the underlying mechanism remains unclear. METHODS AND MATERIALS RCC cell lines ACHN and 786-O were treated with different concentrations (0-210 μM) of Scutellarin in vitro. Cell viability and proliferation were investigated by MTT and colony formation assays. Cell invasion and migration were detected by Transwell assays. Cell apoptosis and cell cycle distribution was measured by flow cytometry. Western blot was used to investigate the expression levels of crucial proteins. Xenograft tumor model was established to evaluate tumor growth in vivo. RESULTS Scutellarin significantly inhibited RCC cell proliferation in a dose- and time- dependent manner. Treatment of RCC cells with Scutellarin (30, 60, and 90 μM) markedly induced apoptosis and cell cycle arrested at G0/G1 phase in a concentration-dependent characteristic. Cell invasion and migration capacities of RCC cells were also dose-dependently suppressed by Scutellarin treatment. Western blot assays revealed that the crucial proteins including cyclin D1, CDK2, Bcl2, MMP-2, and MMP-9 were significantly reduced while Bax, cleaved caspase 3 and p21 were increased by Scutellarin in RCC cells. In vivo assay indicated that Scutellarin possessed anti-cancer effect on xenograft without triggering toxic effect. Mechanically, Scutellarin dramatically increased the protein level of phosphatase and tensin homologue (PTEN) and inhibited the activity of P13K/AKT/mTOR signaling. Ectopic expression of PTEN enhanced the inhibitory effect of Scutellarin on RCC proliferation while knockdown of PTEN abrogated it through regulating its downstream P13K/AKT/mTOR signaling pathway. CONCLUSION Scutellarin inhibited RCC cell proliferation and invasion partially by enhancing the expression of PTEN through inhibition of P13K/AKT/mTOR pathway, suggesting that Scutellarin might serve as a potential therapeutic agent in RCC treatment.
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Affiliation(s)
- Wenting Deng
- College of Pharmacy, Xi'an Medical University, No. 1 Xinwang Road of Weiyang District, 710021, Xi'an, Shaanxi, China.
| | - Wei Han
- Department of Medical Equipment, Shaanxi Provincial People's Hospital, No. 256 Youyi West Road, 710068, Xi'an, Shaanxi, China
| | - Tao Fan
- College of Pharmacy, Xi'an Medical University, No. 1 Xinwang Road of Weiyang District, 710021, Xi'an, Shaanxi, China
| | - Xiaoku Wang
- College of Pharmacy, Xi'an Medical University, No. 1 Xinwang Road of Weiyang District, 710021, Xi'an, Shaanxi, China
| | - Zhao Cheng
- College of Pharmacy, Xi'an Medical University, No. 1 Xinwang Road of Weiyang District, 710021, Xi'an, Shaanxi, China
| | - Bo Wan
- College of Pharmacy, Xi'an Medical University, No. 1 Xinwang Road of Weiyang District, 710021, Xi'an, Shaanxi, China
| | - Jinlian Chen
- College of Pharmacy, Xi'an Medical University, No. 1 Xinwang Road of Weiyang District, 710021, Xi'an, Shaanxi, China
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Ke Y, Bao T, Wu X, Tang H, Wang Y, Ge J, Fu B, Meng X, Chen L, Zhang C, Tan Y, Chen H, Guo Z, Ni F, Lei X, Shi Z, Wei D, Wang L. Scutellarin suppresses migration and invasion of human hepatocellular carcinoma by inhibiting the STAT3/Girdin/Akt activity. Biochem Biophys Res Commun 2016; 483:509-515. [PMID: 27998773 DOI: 10.1016/j.bbrc.2016.12.114] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 12/17/2016] [Indexed: 12/15/2022]
Abstract
Scutellarin is an active flavone from Erigeron breviscapine (vant) Hand Mass. This study aimed to investigate the potential role of scutellarin in migration and invasion of human hepatocellular carcinoma (HCC) cells and its possible mechanism. In comparison with the vehicle-treated controls, treatment with scutellarin (50 mg/kg/day) for 35 days significantly mitigated the lung and intrahepatic metastasis of HCC tumors in vivo. Scutellarin treatment significantly reduced HepG2 cell viability in a dose-dependent manner, and inhibited migration and invasion of HCC cells in vitro. Scutellarin treatment significantly reduced STAT3 and Girders of actin filaments (Girdin) expression, STAT3 and Akt phosphorylation in HCC cells. Introduction of STAT3 overexpression restored the scutellarin-downregulated Girdin expression, Akt activation, migration and invasion of HCC cells. Furthermore, induction of Girdin overexpression completely abrogated the inhibition of scutellarin on the Akt phosphorylation, migration and invasion of HCC cells. Scutellarin can inhibit HCC cell metastasis in vivo, and migration and invasion in vitro by down-regulating the STAT3/Girdin/Akt signaling.
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Affiliation(s)
- Yang Ke
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Tianhao Bao
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China; Mental Health Center, Kunming Medical University, Kunming, China
| | - Xuesong Wu
- Department of Gastroenterological Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Haoran Tang
- Department of Gastroenterological Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yan Wang
- Department of Pathology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jiayun Ge
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Bimang Fu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xu Meng
- Intensive Care Unit, The First Hospital of Kunming, Kunming, China
| | - Li Chen
- Department of Pediatric Surgery, The Kunming Children's Hospital, Kunming, China
| | - Cheng Zhang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuqi Tan
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Haotian Chen
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhitang Guo
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Fan Ni
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xuefen Lei
- Department of Oncology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Zhitian Shi
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Dong Wei
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lin Wang
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
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Niu C, Sheng Y, Yang R, Lu B, Bai Q, Ji L, Wang Z. Scutellarin protects against the liver injury induced by diosbulbin B in mice and its mechanism. JOURNAL OF ETHNOPHARMACOLOGY 2015; 164:301-308. [PMID: 25701748 DOI: 10.1016/j.jep.2015.02.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 02/04/2015] [Accepted: 02/10/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diosbulbin B (DB) is the main hepatotoxic compound distributed in Dioscorea bulbifera L., which is widely used for the treatment of cancer and thyroid disorders in Asia. Scutellarin (SC) is the main compound in medicinal herb Scutellaria barbata D. Don, which is usually combined with Dioscorea bulbifera used for cancer therapy in clinic. AIM OF THE STUDY This study aims to investigate the protection of SC against the liver injury induced by DB and its engaged mechanism. In addition, the anti-tumor effect of DB and SC is further observed in vivo. MATERIALS AND METHODS The protection of SC against DB-induced liver injury was evaluated by detecting serum alanine/aspartate aminotransferases (ALT/AST) and alkaline phosphatase (ALP) activities, and further liver histological observation. The inflammatory response was assessed by detecting liver myeloperoxidase (MPO) activity, and serum levels of tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), and interferon-γ (IFN-γ). Western-blot analysis was used to detect the protein expression. The oxidative liver injury was evaluated by detecting liver malondialdehyde (MDA) and glutathione (GSH) contents, and glutathione peroxidase (GPx) enzymatic activity. In vivo anti-tumor activity was analyzed in S180 tumor-bearing mice. RESULTS SC significantly decreased the increased serum ALT/AST, and ALP activities induced by DB. Liver histological observation evidenced the protection of SC against DB-induced liver injury. SC obviously reduced the increased liver MPO activity and the number of MPO-positive staining cells induced by DB. SC also reversed the decreased expression of inhibitor of κB (IκB) and the translocation of nuclear factor κB (NF-κB) p65 from cytoplasm to nucleus induced by DB. In addition, SC significantly abrogated the increased serum levels of TNF-α, IL-6, and IFN-γ induced by DB. SC decreased the increased liver MDA content induced by DB significantly, and it also increased liver GSH level. The decreased GPx protein expression and its enzymatic activity induced by DB were both obviously reversed after SC treatment. The results in S180 tumor-bearing mice showed that SC combined with DB significantly inhibited tumor growth in vivo. CONCLUSIONS Our results demonstrate that SC prevents DB-induced liver injury by attenuating NF-κB-mediated hepatic inflammation and ameliorating liver oxidative stress injury. Meanwhile, DB plus SC has significant anti-tumor activity in vivo. This study indicates the potential combination of DB with SC for the treatment of cancer in clinic.
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Affiliation(s)
- Chengwei Niu
- The Shanghai Key Laboratory for Complex Prescription, The MOE Key Laboratory for Standardization of Chinese Medicines, and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Yuchen Sheng
- Center for Drug Safety Evaluation and Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Rui Yang
- Center for Drug Safety Evaluation and Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Bin Lu
- The Shanghai Key Laboratory for Complex Prescription, The MOE Key Laboratory for Standardization of Chinese Medicines, and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Qingyun Bai
- The Shanghai Key Laboratory for Complex Prescription, The MOE Key Laboratory for Standardization of Chinese Medicines, and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Lili Ji
- The Shanghai Key Laboratory for Complex Prescription, The MOE Key Laboratory for Standardization of Chinese Medicines, and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China.
| | - Zhengtao Wang
- The Shanghai Key Laboratory for Complex Prescription, The MOE Key Laboratory for Standardization of Chinese Medicines, and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
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Mossa ATH, Heikal TM, Mohafrash SMM. Lipid peroxidation and oxidative stress in rat erythrocytes induced by aspirin and diazinon: the protective role of selenium. Asian Pac J Trop Biomed 2014. [DOI: 10.12980/apjtb.4.2014apjtb-2013-0038] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Liver damage associated with exposure to aspirin and diazinon in male rats and the ameliorative effect of selenium. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.biomag.2014.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Liu Y, Li BH, Sun XM, Lin AH, Wang DB. Effect of selenium on the interaction between daunorubicin and cardiac myosin. Biol Trace Elem Res 2012; 147:240-5. [PMID: 22190261 DOI: 10.1007/s12011-011-9302-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 11/24/2011] [Indexed: 10/14/2022]
Abstract
The interactions between selenium (sodium selenite), anthracycline antibiotics daunorubicin (DNR), and major contractile protein cardiac myosin (CM) were investigated. The results showed that the binding force between selenium and CM was 100 times stronger than that of DNR and CM. There was no marked influence on fluorescence intensity of DNR-CM at selenium concentrations of up to 20 μM. The co-administration of selenium (0.5-10.0 μg Se/ml) together with DNR resulted in a significant reduction in mice cardiotoxicity. However, selenium at the dose of 50.0 or 100.0 μg Se/ml afforded no obvious protection. The data indicate that selenium in the form of sodium selenite at appropriate dosage (<10.0 μg Se/ml) diminish the cardiac toxicity of DNR, potentially allowing the use of DNR at higher dosages in clinical cancer chemotherapy.
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Affiliation(s)
- Yang Liu
- School of Life Science, Wuchang University of Technology, Wuhan, Hubei Province, People's Republic of China.
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Sakr SAR, Mahran HAH, Nofal AE. Effect of selenium on carbimazole-induced testicular damage and oxidative stress in albino rats. J Trace Elem Med Biol 2011; 25:59-66. [PMID: 20832273 DOI: 10.1016/j.jtemb.2010.07.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Revised: 06/01/2010] [Accepted: 07/23/2010] [Indexed: 10/19/2022]
Abstract
Carbimazole is an antithyroid drug used in treatment of hyperthyroidism. The present investigation studied the effect of carbimazole on testicular activity in albino rats and the ameliorative role of selenium. Treating rats with carbimazole (1.35 mg/kg b.w) daily for 8 weeks caused reduction in the body and testes weight. Moreover, the diameters of the seminiferous tubules and heights of their germinal epithelium were significantly reduced. Testes of treated rats showed many histological alterations included congestion of blood vessels, hemorrhage, degeneration of interstitial tissue and degeneration of spermatogenic cells with apoptosis and necrosis. Histochemical results revealed reduction in polysaccharides, total proteins and nucleic acids contents in testicular tissue. In addition, the level of testosterone, luteinizing hormone (LH), T(3), T(4) and thyroid stimulating hormone (TSH) was significantly decreased in sera of treated animals. Moreover, a high lipid peroxidation with a decrease in the enzymatic antioxidant status, superoxide dismutase (SOD) and catalase (CAT) was recorded in testes homogenate. Treating animals with carbimazole and selenium showed an improvement in the histological structure as well as histochemical components of the testis with an increase in the number of spermatogenic cells. There was an increase in testosterone, LH, T(3), T(4) and TSH levels. Moreover, administration of selenium led to decrease in malondialdehyde and increase in catalase and superoxide dismutase activities. It is suggested that the curative effect of selenium against testicular damage induced by carbimazole may be due to its antioxidant properties.
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Tan ZH, Yu LH, Wei HL, Liu GT. Scutellarin protects against lipopolysaccharide-induced acute lung injury via inhibition of NF-kappaB activation in mice. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:175-84. [PMID: 20390762 DOI: 10.1080/10286020903347906] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
This paper investigates the effect of natural scutellarin on acute lung injury (ALI) induced by Escherichia coli endotoxin lipopolysaccharide (LPS) in mice and its mechanism of action. Mouse ALI was induced by the injection of LPS (15 mg/kg) via the tail vein, and mice were intraperitoneally injected with 50 and 25 mg/kg of scutellarin before the LPS injection. The lung index, serum NO2(-)/NO3(-), and tumor necrosis factor-alpha (TNF-alpha) levels were determined using kits. The lung lesions were examined by light microscope. The mRNA levels of TNF-alpha, inducible nitric oxide synthase (iNOS), and FasL in pulmonary tissues were detected by RT-PCR. c-Fos, c-Jun, IkappaB, and iNOS proteins were detected by the western blotting method. Pretreatment with 25 and 50 mg/kg of scutellarin significantly reduced lung injury induced by LPS, which expressed in the decrease in lung morphological lesions, serum NO2(-)/NO3(-), TNF-alpha levels, lactate dehydrogenase release, and total protein in the lavage fluid of bronchoalveolar of the lung. The mRNA level of TNF-alpha, iNOS, the protein content of c-Fos, iNOS, and the activation of NF-kappaB in pulmonary tissues were all inhibited, while the lung glutathione level increased. In conclusion, scutellarin has protective action against LPS-induced lung damage in mice, and its underlying mechanism might be the inhibition of IkappaB alpha degradation and the expression of TNF-alpha mRNA.
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Affiliation(s)
- Zheng-Huai Tan
- Department of Pharmacology, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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Tan ZH, Yu LH, Wei HL, Liu GT. The protective action of scutellarin against immunological liver injury induced by concanavalin A and its effect on pro-inflammatory cytokines in mice. J Pharm Pharmacol 2010; 59:115-21. [PMID: 17227628 DOI: 10.1211/jpp.59.1.0015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Scutellarin is a natural compound from a Chinese herb. The purpose of this paper was to study the protective effect of scutellarin on concanavalin A (Con A)-induced immunological liver injury and its effect on liver nuclear factor κB (NF-κB), tumor necrosis factor α (TNF-α), interferon γ (IFN-γ), and inducible nitric oxide synthase (iNOS) expression in mice. Mouse liver injury was produced by injection of Con A 25 mg kg−1 via the tail vein. Scutellarin 50 or 100 mg kg−1 was peritoneally administered to mice 9 or 1 h before injection of Con A. The levels of serum alanine aminotransferase (ALT) and asparatate aminotransferase (AST), NO2−/NO3− and TNF-α were determined with biochemical kits, and ELISA using Quantikine Mouse TNF-α kit according the manufacturer's instructions. Liver lesions were examined by light microscope. The expression of TNF-α, IFN-γ, iNOS and Fas mRNA in the livers was detected by RT-PCR; and the expression of c-Fos, c-Jun, iNOS and IκB proteins was measured by Western Blotting. As a result, pretreatment with scutellarin 100 mg kg−1 significantly decreased the serum ALT, AST, NO2−/NO3−and TNF-α levels, and also reduced liver lesions induced by Con A. Scutellarin 100 mg kg−1 down-regulated expression of TNF-α and iNOS mRNA, and c-Fos, c-Jun and iNOS protein, while scutellarin enhanced the degradation of IκBα in the livers of mice injected with Con A. The results suggest that scutellarin has a protective action against Con A-induced liver injury in mice, and its active mechanism may be related to the inhibition of the NF-κB-TNF-α-iNOS transduction pathway.
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Affiliation(s)
- Zheng Huai Tan
- Department of Pharmacology, Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, China
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