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Peng H, You L, Yang C, Wang K, Liu M, Yin D, Xu Y, Dong X, Yin X, Ni J. Ginsenoside Rb1 Attenuates Triptolide-Induced Cytotoxicity in HL-7702 Cells via the Activation of Keap1/Nrf2/ARE Pathway. Front Pharmacol 2022; 12:723784. [PMID: 35046796 PMCID: PMC8762226 DOI: 10.3389/fphar.2021.723784] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 12/06/2021] [Indexed: 12/19/2022] Open
Abstract
Triptolide (TP) is the major bioactive compound extracted from Tripterygium wilfordii Hook F. It exerts anti-inflammatory, antirheumatic, antineoplastic, and neuroprotective effects. However, the severe hepatotoxicity induced by TP limits its clinical application. Ginsenoside Rb1 has been reported to possess potential hepatoprotective effects, but its mechanism has not been fully investigated. This study was aimed at investigating the effect of ginsenoside Rb1 against TP-induced cytotoxicity in HL-7702 cells, as well as the underlying mechanism. The results revealed that ginsenoside Rb1 effectively reversed TP-induced cytotoxicity in HL-7702 cells. Apoptosis induced by TP was suppressed by ginsenoside Rb1 via inhibition of death receptor-mediated apoptotic pathway and mitochondrial-dependent apoptotic pathway. Pretreatment with ginsenoside Rb1 significantly reduced Bax/Bcl-2 ratio and down-regulated the expression of Fas, cleaved poly ADP-ribose polymerase (PARP), cleaved caspase-3, and -9. Furthermore, ginsenoside Rb1 reversed TP-induced cell cycle arrest in HL-7702 cells at S and G2/M phase, via upregulation of the expressions of cyclin-dependent kinase 2 (CDK2), cyclin E, cyclin A, and downregulation of the expressions of p53, p21, and p-p53. Ginsenoside Rb1 increased glutathione (GSH) and superoxide dismutase (SOD) levels, but decreased the reactive oxygen species (ROS) and malondialdehyde (MDA) levels. Pretreatment with ginsenoside Rb1 enhanced the expression levels of nuclear factor-erythroid 2-related factor 2 (Nrf2), total Nrf2, NAD(P)H: quinone oxidoreductases-1 (NQO-1), heme oxygenase-1 (HO-1), and Kelch-like ECH-associated protein 1 (Keap1)/Nrf2 complex. Therefore, ginsenoside Rb1 effectively alleviates TP-induced cytotoxicity in HL-7702 cells through activation of the Keap1/Nrf2/ARE antioxidant pathway.
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Affiliation(s)
- Hulinyue Peng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Longtai You
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Chunjing Yang
- Department of Pharmacy, Beijing Shijitan Hospital Affiliated to Capital University of Medical Sciences, Beijing, China
| | - Kaixin Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Manting Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Dongge Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yuchen Xu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoxv Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xingbin Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jian Ni
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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Wang Q, Shi Y, Chen W, Yang M, Yi C. Synthesis of fluorescent nanoprobe with simultaneous response to intracellular pH and Zn 2+ for tumor cell distinguishment. Mikrochim Acta 2021; 188:9. [PMID: 33389210 DOI: 10.1007/s00604-020-04682-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 12/03/2020] [Indexed: 12/19/2022]
Abstract
A novel dual-functional nanoprobe was designed and synthesized by facile assembly of quinoline derivative (PEIQ) and meso-tetra (4-carboxyphenyl) porphine (TCPP) via electrostatic interaction for simultaneous sensing of fluorescence of Zn2+ and pH. Under the single-wavelength excitation at 400 nm, this nanoprobe not only exhibits "OFF-ON" green fluorescence at 512 nm by specific PEIQ-Zn2+ chelation, but also presents red fluorescence enhancement at 654 nm by H+-triggered TCPP release. The nanoprobe demonstrated excellent sensing performance with a good linear range (Zn2+, 1-40 μM; pH, 5.0-8.0), low detection limit (Zn2+, 0.88 μM), and simultaneous response towards Zn2+ and pH in pure aqueous solution within 2 min. More importantly, this dual-functional nanoprobe demonstrates the capability of discerning cancerous cells from normal cells, as evidenced by the fact that cancerous HepG2 cells in tumor microenvironment exhibit substantially higher red fluorescence and significantly lower green fluorescence than normal HL-7702 cells. The simultaneous, real-time fluorescence imaging of multiple analytes in a living system could be significant for cell analysis and tracking, cancer diagnosis, and even fluorescence-guided surgery of tumors.
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Affiliation(s)
- Qin Wang
- Key Laboratory of Sensing Technology and Biomedical Instruments (Guangdong Province), School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen, 518107, People's Republic of China.,State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Yupeng Shi
- Department of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Wandi Chen
- Key Laboratory of Sensing Technology and Biomedical Instruments (Guangdong Province), School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen, 518107, People's Republic of China
| | - Mo Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China
| | - Changqing Yi
- Key Laboratory of Sensing Technology and Biomedical Instruments (Guangdong Province), School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen, 518107, People's Republic of China.
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Yang J, Guo W, Wang J, Yang X, Zhang Z, Zhao Z. T-2 Toxin-Induced Oxidative Stress Leads to Imbalance of Mitochondrial Fission and Fusion to Activate Cellular Apoptosis in the Human Liver 7702 Cell Line. Toxins (Basel) 2020; 12:E43. [PMID: 31936883 DOI: 10.3390/toxins12010043] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 12/15/2022] Open
Abstract
T-2 toxin, as a highly toxic mycotoxin to humans and animals, induces oxidative stress and apoptosis in various cells and tissues. Apoptosis and mitochondrial fusion/fission are two tightly interconnected processes that are crucial for maintaining physiological homeostasis. However, the role of mitochondrial fusion/fission in apoptosis of T-2 toxin remains unknown. Hence, we aimed to explore the putative role of mitochondrial fusion/fission on T-2 toxin induced apoptosis in normal human liver (HL-7702) cells. T-2 toxin treatment (0, 0.1, 1.0, or 10 μg/L) for 24 h caused decreased cell viability and ATP concentration and increased production of (ROS), as seen by a loss of mitochondrial membrane potential (∆Ψm) and increase in mitochondrial fragmentation. Subsequently, the mitochondrial dynamic imbalance was activated, evidenced by a dose-dependent decrease and increase in the protein expression of mitochondrial fusion (OPA1, Mfn1, and Mfn2) and fission (Drp1 and Fis1), respectively. Furthermore, the T-2 toxin promoted the release of cytochrome c from mitochondria to cytoplasm and induced cell apoptosis triggered by upregulation of Bax and Bax/Bcl-2 ratios, and further activated the caspase pathways. Taken together, these results indicate that altered mitochondrial dynamics induced by oxidative stress with T-2 toxin exposure likely contribute to mitochondrial injury and HL-7702 cell apoptosis.
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Chen G, Leng X, Luo J, You L, Qu C, Dong X, Huang H, Yin X, Ni J. In Vitro Toxicity Study of a Porous Iron(III) Metal‒Organic Framework. Molecules 2019; 24:E1211. [PMID: 30925694 PMCID: PMC6480057 DOI: 10.3390/molecules24071211] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 03/22/2019] [Accepted: 03/27/2019] [Indexed: 01/08/2023] Open
Abstract
A MIL series metal‒organic framework (MOF), MIL-100(Fe), was successfully synthesized at the nanoscale and fully characterized by TEM, TGA, XRD, FTIR, DLS, and BET. A toxicological assessment was performed using two different cell lines: human normal liver cells (HL-7702) and hepatocellular carcinoma (HepG2). In vitro cytotoxicity of MIL-100(Fe) was evaluated by the MTT assay, LDH releasing rate assay, DAPI staining, and annexin V/PI double staining assay. The safe dose of MIL-100(Fe) was 80 μg/mL. It exhibited good biocompatibility, low cytotoxicity, and high cell survival rate (HL-7702 cells' viability >85.97%, HepG2 cells' viability >91.20%). Therefore, MIL-100(Fe) has a potential application as a drug carrier.
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Affiliation(s)
- Gongsen Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Xin Leng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Juyuan Luo
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Longtai You
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Changhai Qu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Xiaoxv Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Hongliang Huang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Xingbin Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Jian Ni
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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Peng R, Zhang Y, Zhao GX, Li J, Shen XZ, Wang JY, Sun JY. Differential regulation of the expression of aquaporins 3 and 9 by Auphen and dbcAMP in the SMMC-7721 hepatocellular carcinoma cell line. Biotech Histochem 2016; 91:333-41. [PMID: 27058469 DOI: 10.3109/10520295.2016.1168525] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aquaglycero-aquaporins (agAQPs) are the structural foundation of rapid water transport and they appear to participate in cancer proliferation and malignancy. AQP3 expression is increased and AQP9 expression is decreased in hepatocellular carcinoma (HCC) compared to normal liver, which suggests their possible use as targets for cancer treatment. AQP-based modifiers, such as Auphen and dibutyryladenosine 3', 5'-cyclic monophosphate (dbcAMP), might be used to treat several diseases and as chemical tools for assessing the functions of AQPs in biological systems. We investigated the effects of both Auphen on AQP3 and dbcAMP on AQP9 in SMMC-7721 cells. We used western blotting, real-time quantitative polymerase chain reaction (qPCR) and immunohistochemistry to evaluate changes in AQP3 and AQP9 expression in SMMC-7721 cells after culturing with Auphen and dbcAMP, respectively. We also determined the proliferation of SMMC-7721 cells. We found that compared to HL-7702 (L02) liver cells, Auphen increased AQP3 expression in tumor cells, whereas dbcAMP decreased expression of AQP9 in these cells. Also, high concentrations of Auphen and dbcAMP inhibited proliferation of SMMC-7721 cells in vitro. Auphen and dbcAMP may inhibit HCC development and could be considered targets for HCC diagnosis and therapy.
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Affiliation(s)
- R Peng
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - Y Zhang
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - G X Zhao
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Li
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - X Z Shen
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Y Wang
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Y Sun
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
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KoraMagazi A, Wang D, Yousef B, Guerram M, Yu F. Rhein triggers apoptosis via induction of endoplasmic reticulum stress, caspase-4 and intracellular calcium in primary human hepatic HL-7702 cells. Biochem Biophys Res Commun 2016; 473:230-236. [PMID: 27003256 DOI: 10.1016/j.bbrc.2016.03.084] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/18/2016] [Indexed: 12/31/2022]
Abstract
Rhein is an active component of rhubarb; a traditional Chinese medicine reported to induce apoptosis and cause liver toxicity. However, rhein's apoptotic-inducing effects, as well as its molecular mechanisms of action on hepatic cells need to be further explored. In the present study, rhein was found to trigger apoptosis in primary human hepatic HL-7702 cells as showed by annexin V/PI double staining assay and nuclear morphological changes demonstrated by Hoechst 33258 staining. Moreover, it was observed that the mechanism implicated in rhein-induced apoptosis was caspase-dependent, presumably via ER-stress associated pathways, as illustrated by up-regulation of glucose-regulated protein 78 (GRP 78), PKR-like ER kinase (PERK), C-Jun N-terminal kinase (JNK) and CCAAT/enhancer-binding protein homologous protein (CHOP). Meanwhile, caspase-4 as a hallmark of ER-stress, was also showed to be activated following by caspase-3 activation. Furthermore, rhein also promoted intracellular elevation of calcium that contributed in apoptosis induction. Interestingly, pre-treatment with calpain inhibitor I reduced the effects of rhein on apoptosis induction and JNK activation. These data suggested that rhein-induced apoptosis through ER-stress and elevated intracellular calcium level in HL-7702 cells.
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Affiliation(s)
- Arouna KoraMagazi
- Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Dandan Wang
- Department of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Bashir Yousef
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Mounia Guerram
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Feng Yu
- Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, China; Department of Pharmacology, China Pharmaceutical University, Nanjing, Jiangsu, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, China Pharmaceutical University, Nanjing, Jiangsu, China.
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Bi S, Yang N, Yang M, He X, Chen L, Zhu Z, Gao Y, Du Z. Fabrication of polystyrene microscale porous substrate and its effects on HL-7702 cells behaviors. J Biomed Mater Res A 2013; 102:1518-26. [PMID: 23666881 DOI: 10.1002/jbm.a.34794] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 04/12/2013] [Accepted: 05/02/2013] [Indexed: 01/22/2023]
Abstract
A novel polystyrene (PS) substrate with microscale porous structure was facilely fabricated by crystalline-controlled casting method using mixed solvent [N,N-dimethylformamide and ethyl alcohol (v/v)] based on the nonsolvent induced phase separation process. The substrate surfaces exhibited a bi-continuous microscale porous morphology with high porosity, large pore size and pore-pore connection structure. Moreover, behaviors of the normal human liver cell line (HL-7702) seeded on this substrate surface were carefully investigated. The results indicated that the cell adhesion, spread and cell-cell connection on the surface with subcellular pore size (∼ 10 μm) were similar to the cells proliferated on the flat PS surface. However, the number of HL-7702 cells proliferated on the PS microscale porous surface was higher than cells on the conventional PS flat surface, suggesting that the pore-pore structure was conducive to HL-7702 cell proliferation. Furthermore, hematoxylin and eosin staining and micronucleus test were performed. The results showed that fewer damages for nuclear and cytoplasm and less cell genotoxicity were caused by the microscale porous structure within the scope of pore size (∼ 10 μm) than that of the flat surface.
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Affiliation(s)
- Sixin Bi
- Tianjin Key Laboratory of Fiber Modification and Functional Fiber, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin, 300387, China
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Zhang ZY, Zhang ZM, Pan LJ. Construction of human STIM1 eukaryotic expression vector and its expression in HL-7702 cells. Shijie Huaren Xiaohua Zazhi 2009; 17:1489-1492. [DOI: 10.11569/wcjd.v17.i15.1489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To construct eukaryotic expression vector of human stromal interaction molecular 1 (STIM1) gene and to observe its expression in human liver cell line (HL-7702).
METHODS: Total RNA was extracted from HL-7702 cells and the coding sequence of STIM1 gene was amplified using RT-PCR. After purification, the fragment and eukaryotic expression vector pGM-T plasmid were ligated. The recombinant plasmid was verified by agarose gel electrophoresis and sequencing. Expression of STIM1 gene and growth of transfected HL-7702 cells were evaluated by electrophoresis and Western blot, respectively.
RESULTS: The length of specific fragment amplified by PCR was 342 bp, the recombinant plasmid pGM-T-STIM1 showed two correct bands by digestion using restriction endonuclease EcoR, and sequencing results were as expected, suggesting that STIM1 gene had been cloned into pGM-T vector. Results of agarose gel electrophoresis and Western blot revealed that with the transfection, the expression level of STIM1 gene and protein were all elevated in HL-7702 cells.
CONCLUSION: The recombinant eukaryotic expression vector pGM-T-STIM1 was successfully constructed and stably expressed in HL-7702 cells. It is meaningful for the research of cytoplasm calcium concentration regulation and secretion function in human liver cells.
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