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Zhang Q, Chang X, Wang H, Liu Y, Wang X, Wu M, Zhan H, Li S, Sun Y. TGF-β1 mediated Smad signaling pathway and EMT in hepatic fibrosis induced by Nano NiO in vivo and in vitro. ENVIRONMENTAL TOXICOLOGY 2020; 35:419-429. [PMID: 31737983 DOI: 10.1002/tox.22878] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/20/2019] [Accepted: 10/26/2019] [Indexed: 06/10/2023]
Abstract
Nickel oxide nanoparticles (Nano NiO) bears hepatotoxicity, while whether it leads to liver fibrosis remains unclear. The aim of this study was to establish the Nano NiO-induced hepatic fibrosis model in vivo and investigate the roles of transforming growth factor β1 (TGF-β1) in Smad pathway activation, epithelial-mesenchymal transition (EMT) occurrence, and extracellular matrix (ECM) deposition in vitro. Male Wistar rats were exposed to 0.015, 0.06, and 0.24 mg/kg Nano NiO by intratracheal instilling twice a week for 9 weeks. HepG2 cells were treated with 100 μg/mL Nano NiO and TGF-β1 inhibitor (SB431542) to explore the mechanism of collagen formation. Results of Masson staining as well as the elevated levels of type I collagen (Col-I) and Col-III suggested that Nano NiO resulted in hepatic fibrosis in rats. Furthermore, Nano NiO increased the protein expression of TGF-β1, p-Smad2, p-Smad3, alpha-smooth muscle actin (α-SMA), matrix metalloproteinase9 (MMP9), and tissue inhibitors of metalloproteinase1 (TIMP1), while decreased the protein content of E-cadherin and Smad7 in rat liver and HepG2 cells. Most importantly, Nano NiO-triggered the abnormal expression of the abovementioned proteins were all alleviated by co-treatment with SB431542, implying that TGF-β1-mediated Smad pathway, EMT and MMP9/TIMP1 imbalance were involved in overproduction of collagen in HepG2 cells. In conclusion, these findings indicated that Nano NiO induced hepatic fibrosis via TGF-β1-mediated Smad pathway activation, EMT occurrence, and ECM deposition.
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Affiliation(s)
- Qiong Zhang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Xuhong Chang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Haibing Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Yunlan Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Xiaoxia Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Minmin Wu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Haibing Zhan
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Sheng Li
- Department occupational disease control, Lanzhou Municipal Center for Disease Control, Lanzhou, China
| | - Yingbiao Sun
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
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Li Q, Liang X, Yang Y, Zeng X, Zhong X, Huang C. Panax notoginseng saponins ameliorate cisplatin-induced mitochondrial injury via the HIF-1α/mitochondria/ROS pathway. FEBS Open Bio 2019; 10:118-126. [PMID: 31715069 PMCID: PMC6943232 DOI: 10.1002/2211-5463.12760] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/26/2019] [Accepted: 11/12/2019] [Indexed: 01/15/2023] Open
Abstract
Cisplatin is a major antineoplastic drug that is used to treat solid tumors, but its use is restricted by its nephrotoxicity. Such cisplatin‐induced nephrotoxicity (CIN) is believed to occur primarily through mitochondrial damage and reactive oxygen species (ROS) generation. Our previous studies have indicated that Panax notoginseng saponins (PNSs) mitigate CIN by enhancing hypoxia‐inducible factor 1α (HIF‐1α)‐induced mitochondrial autophagy. In this study, the role of the HIF‐1α/mitochondria/ROS pathway in PNSs protection against CIN was investigated using a rat model. A CIN model was generated by giving rats intraperitoneal injections with cisplatin (a single dose) and then treating them with or without 2‐methoxyestradiol (HIF‐1α inhibitor) and PNSs. We then measured ROS levels, superoxide dismutase, glutathione, catalase malondialdehyde and nitric oxide (to evaluate oxidative stress) and ATP, mitochondrial membrane potential and mitochondrial permeability transition pore opening (to evaluate mitochondrial function) in kidneys at different time points. We observed that PNSs remarkably reduced the levels of ROS, malondialdehyde and nitric oxide, as well as the opening of mitochondrial permeability transition pore, which is increased by cisplatin and further increased by HIF‐1α inhibition. In addition, PNSs increased the levels of superoxide dismutase, catalase and glutathione, as well as ATP and mitochondrial membrane potential in renal tissues; these are all reduced by cisplatin and further reduced by HIF‐1α inhibition. In conclusion, we demonstrate here that PNSs protects against mitochondrial damage induced by cisplatin through HIF‐1α/mitochondria/ROS.
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Affiliation(s)
- Qingqing Li
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xueyan Liang
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yufang Yang
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xian Zeng
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaobin Zhong
- Regenerative Medicine Research Center of Guangxi Medical University, Nanning, China
| | - Chun Huang
- Department of Pharmacy, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Huang Q, Zhang X, Bai F, Nie J, Wen S, Wei Y, Wei J, Huang R, He M, Lu Z, Lin X. Methyl helicterte ameliorates liver fibrosis by regulating miR-21-mediated ERK and TGF-β1/Smads pathways. Int Immunopharmacol 2018; 66:41-51. [PMID: 30419452 DOI: 10.1016/j.intimp.2018.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/26/2018] [Accepted: 11/05/2018] [Indexed: 12/28/2022]
Abstract
Methyl helicterate (MH) has been reported to have protective effects against CCl4-induced hepatic injury and fibrosis in rats, but its protective mechanism, especially on hepatic stallete cells (HSCs), remains unclear. Recently, our pilot experiment showed that MH could inhibit miR-21 expression in HSC-T6 cells, suggesting that miR-21 may be one of the targets of MH to intervene liver fibrosis. To verify the hypothesis, the present study would focus on the regulatory effect of MH on the miR-21-mediated ERK and TGF-β1/Smads pathways. Briefly, rats were intraperitoneally injected with 0.5 ml porcine serum (PS) twice a week for 24 weeks to induce liver fibrosis, and meanwhile, the rats were treated with MH from weeks 16 to 24. In vitro experiment, miR-21 expression in HSC-T6 cells was up- or down-regulated using lentiviral transfection assay. Collagen accumulation, inflammatory cytokines, cell apoptosis, miR-21 expression, and activation of the ERK and TGF-β1/smad2/3 pathways were then assessed. The results showed that MH treatment markedly alleviated PS-induced liver injury, as evidenced by the attenuation of histopathological changes and the decrease in serum alanine and aspartate aminotransferases activity. MH significantly decreased the content of inflammatory cytokines and recruited the anti-oxidative defense system. Moreover, MH treatment significantly decreased miR-21 expression and inhibited the activation of the ERK and TGF-β1/smad2/3 pathways in liver tissues. In vitro experiments showed that MH strongly inhibited HSC-T6 cell activation and reduced collagen accumulation. Interestingly, miR-21 overexpression significantly promoted HSC-T6 cell proliferation, reduced HSC apoptosis, and increased collagenation, while these abnormal changes induced by miR-21overexpression were significantly reversed by MH treatment. Furthermore, miR-21 overexpression notably activated the ERK and TGF-β1/Smads pathways via repressing SPRY2 and Smad7 expression respectively, however, these effects were largely abolished by MH treatment. In conclusion, our study demonstrates that MH significantly alleviates PS-induced liver injury and fibrosis by inhibiting miR-21-mediated ERK and TGF-β1/Smads pathways.
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Affiliation(s)
- Quanfang Huang
- The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | | | - Facheng Bai
- Guangxi Medical University, Nanning 530021, China
| | - Jinlan Nie
- Guangxi Medical University, Nanning 530021, China
| | - Shujuan Wen
- Guangxi Medical University, Nanning 530021, China
| | - Yuanyuan Wei
- Guangxi Medical University, Nanning 530021, China
| | - Jinbin Wei
- Guangxi Medical University, Nanning 530021, China
| | - Renbin Huang
- Guangxi Medical University, Nanning 530021, China
| | - Min He
- Guangxi Medical University, Nanning 530021, China
| | - Zhongpeng Lu
- Department of Biochemistry, University of Arkansas Medical School, 4301 W. Markham, Little Rock, AR 72205-7199, USA
| | - Xing Lin
- Guangxi Medical University, Nanning 530021, China.
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Huang Q, Wei J, Wei L, Zhang X, Bai F, Wen S, Wei Y, Tan S, Lu Z, Lin X. Retracted
: Role of RKIP in human hepatic stellate cell proliferation, invasion, and metastasis. J Cell Biochem 2018; 120:6168-6177. [DOI: 10.1002/jcb.27904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 09/25/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Quanfang Huang
- Department of Pharmacy, The First Affiliated Hospital of Guangxi University of Chinese Medicine Nanning Guangxi China
| | - Jinbin Wei
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Ling Wei
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Xiaolin Zhang
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Facheng Bai
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Shujuan Wen
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Yuanyuan Wei
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Shimei Tan
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
| | - Zhongpeng Lu
- Department of Pharmacy, The First Affiliated Hospital of Guangxi University of Chinese Medicine Nanning Guangxi China
- Pharmaceutical College, University of Arkansas Medical School Little Rock Arkansas
| | - Xing Lin
- Life Sciences Institute and Pharmaceutical College, Guangxi Medical University Nanning Guangxi China
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RKIP: A Key Regulator in Tumor Metastasis Initiation and Resistance to Apoptosis: Therapeutic Targeting and Impact. Cancers (Basel) 2018; 10:cancers10090287. [PMID: 30149591 PMCID: PMC6162400 DOI: 10.3390/cancers10090287] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/12/2018] [Accepted: 08/18/2018] [Indexed: 02/07/2023] Open
Abstract
RAF-kinase inhibitor protein (RKIP) is a well-established tumor suppressor that is frequently downregulated in a plethora of solid and hematological malignancies. RKIP exerts antimetastatic and pro-apoptotic properties in cancer cells, via modulation of signaling pathways and gene products involved in tumor survival and spread. Here we review the contribution of RKIP in the regulation of early metastatic steps such as epithelial–mesenchymal transition (EMT), migration, and invasion, as well as in tumor sensitivity to conventional therapeutics and immuno-mediated cytotoxicity. We further provide updated justification for targeting RKIP as a strategy to overcome tumor chemo/immuno-resistance and suppress metastasis, through the use of agents able to modulate RKIP expression in cancer cells.
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Lappas M. RKIP is decreased in laboring myometrium and modulates inflammation-induced pro-labor mediators. Reproduction 2017; 153:545-553. [PMID: 28280133 DOI: 10.1530/rep-17-0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/06/2017] [Accepted: 02/13/2017] [Indexed: 11/08/2022]
Abstract
Nuclear factor-kappa B (NF-κB)-induced inflammation plays a central role in the terminal process of human labor and delivery. Our previous studies show that IL1B induces NF-κB signaling through extracellular signal-regulated kinase (ERK; official gene symbol MAPK1), whereas TNF induces NF-κB-driven transcription of pro-labor mediators via an MAPK1-independent mechanism. Raf kinase inhibitor protein (RKIP) negatively regulates inflammation by inhibiting NF-κB activation directly or indirectly by inhibiting MAPK1. The role of RKIP in the processes of human labor and delivery is not known. The present study was performed to investigate the expression of RKIP in laboring and non-laboring human myometrium and determine the effect of siRNA knockdown of RKIP (siRKIP) on pro-labor mediators in human myometrial primary cells. Term labor was associated with a decrease in RKIP expression. Furthermore, RKIP expression was decreased in myometrial cells treated with IL1B and TNF, two likely factors contributing to preterm birth. The effect of siRKIP in primary myometrial cells was a significant augmentation of IL1B- and TNF-induced CXCL1 and CXCL8 mRNA abundance and secretion; PTGS2 mRNA levels and prostaglandin PGF2α release and MMP9 mRNA abundance and pro-MMP9 secretion. There was no effect of siRKIP on MAPK1 activation. On the other hand, RKIP knockdown was associated with increased activation of NF-κB RELA in the presence of IL1B and TNF. In conclusion, in human primary myometrial cells, RKIP negatively regulates IL1B- and TNF-induced expression and or secretion of pro-inflammatory and pro-labor mediators by inhibiting NF-κB RELA activation.
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Affiliation(s)
- Martha Lappas
- Mercy Perinatal Research CentreMercy Hospital for Women, Heidelberg, Victoria, Australia and Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne,Victoria, Australia
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