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Nasimi Shad A, Akhlaghipour I, Alshakarchi HI, Saburi E, Moghbeli M. Role of microRNA-363 during tumor progression and invasion. J Physiol Biochem 2024:10.1007/s13105-024-01022-1. [PMID: 38691273 DOI: 10.1007/s13105-024-01022-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/05/2024] [Indexed: 05/03/2024]
Abstract
Recent progresses in diagnostic and therapeutic methods have significantly improved prognosis in cancer patients. However, cancer is still considered as one of the main causes of human deaths in the world. Late diagnosis in advanced tumor stages can reduce the effectiveness of treatment methods and increase mortality rate of cancer patients. Therefore, investigating the molecular mechanisms of tumor progression can help to introduce the early diagnostic markers in these patients. MicroRNA (miRNAs) has an important role in regulation of pathophysiological cellular processes. Due to their high stability in body fluids, they are always used as the non-invasive markers in cancer patients. Since, miR-363 deregulation has been reported in a wide range of cancers, we discussed the role of miR-363 during tumor progression and metastasis. It has been reported that miR-363 has mainly a tumor suppressor function through the regulation of transcription factors, apoptosis, cell cycle, and structural proteins. MiR-363 also affected the tumor progression via regulation of various signaling pathways such as WNT, MAPK, TGF-β, NOTCH, and PI3K/AKT. Therefore, miR-363 can be introduced as a probable therapeutic target as well as a non-invasive diagnostic marker in cancer patients.
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Affiliation(s)
- Arya Nasimi Shad
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Iman Akhlaghipour
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hawraa Ibrahim Alshakarchi
- Al-Zahra Center for Medical and Pharmaceutical Research Sciences (ZCMRS), Al-Zahraa University for Women, Karbala, Iraq
| | - Ehsan Saburi
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Lagunas-Rangel FA, Liu W, Schiöth HB. Interaction between environmental pollutants and cancer drug efficacy: Bisphenol A, Bisphenol A diglycidyl ether and Perfluorooctanoic acid reduce vincristine cytotoxicity in acute lymphoblastic leukemia cells. J Appl Toxicol 2023; 43:458-469. [PMID: 36181250 DOI: 10.1002/jat.4398] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/15/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022]
Abstract
Every day, we are exposed to many environmental pollutants that can enter our body through different routes and cause adverse effects on our health. Epidemiological studies suggest that these pollutants are responsible for approximately nine million deaths per year. Acute lymphoblastic leukemia (ALL) represents one of the major cancers affecting children, and although substantial progress has been made in its treatment, relapses are frequent after initial treatment and are now one of the leading causes of cancer-related death in pediatric patients. Currently, relatively little attention is paid to pollutant exposure during drug treatment and this is not taken into account for dose setting or regulatory purposes. In this work, we investigated how bisphenol A (BPA), its derivative bisphenol A diglycidyl ether (BADGE), and perfluorooctanoic acid (PFOA) alter vincristine treatment in ALL when administered before or together with the drug. We found that these three pollutants at nanomolar concentrations, lower than those established by current regulations, can reduce the cytotoxic effects of vincristine on ALL cells. Interestingly, we found that this is only achieved when exposure to pollutants occurs prior to administration of the chemotherapeutic drug. Moreover, we found that this effect could be mediated by activation of the PI3K/AKT pathway and stabilization of microtubules. This work strengthens the idea of starting to take into account exposure to pollutants to improve the efficacy of chemotherapy treatments.
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Affiliation(s)
| | - Wen Liu
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
| | - Helgi B Schiöth
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
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Rickard BP, Tan X, Fenton SE, Rizvi I. Select Per- and Polyfluoroalkyl Substances (PFAS) Induce Resistance to Carboplatin in Ovarian Cancer Cell Lines. Int J Mol Sci 2022; 23:5176. [PMID: 35563566 PMCID: PMC9104343 DOI: 10.3390/ijms23095176] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/15/2022] [Accepted: 05/03/2022] [Indexed: 02/01/2023] Open
Abstract
Per- and polyfluoroalkyl substances (PFAS) are ubiquitous environmental contaminants associated with adverse reproductive outcomes including reproductive cancers in women. PFAS can alter normal ovarian function, but the effects of PFAS on ovarian cancer progression and therapy response remain understudied. Ovarian cancer is the most lethal gynecologic malignancy, and a major barrier to effective treatment is resistance to platinum-based chemotherapy. Platinum resistance may arise from exposure to external stimuli such as environmental contaminants. This study evaluated PFAS and PFAS mixture exposures to two human ovarian cancer cell lines to evaluate the ability of PFAS exposure to affect survival fraction following treatment with carboplatin. This is the first study to demonstrate that, at sub-cytotoxic concentrations, select PFAS and PFAS mixtures increased survival fraction in ovarian cancer cells following carboplatin treatment, indicative of platinum resistance. A concomitant increase in mitochondrial membrane potential, measured by the JC-1 fluorescent probe, was observed in PFAS-exposed and PFAS + carboplatin-treated cells, suggesting a potential role for altered mitochondrial function that requires further investigation.
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Affiliation(s)
- Brittany P. Rickard
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (B.P.R.); (S.E.F.)
| | - Xianming Tan
- Department of Biostatistics, University of North Carolina School of Public Health, Chapel Hill, NC 27599, USA;
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Suzanne E. Fenton
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (B.P.R.); (S.E.F.)
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
| | - Imran Rizvi
- Curriculum in Toxicology & Environmental Medicine, University of North Carolina School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; (B.P.R.); (S.E.F.)
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
- Center for Environmental Health and Susceptibility, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA; North Carolina State University, Raleigh, NC 27606, USA
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Lagunas-Rangel FA, Liu W, Schiöth HB. Can Exposure to Environmental Pollutants Be Associated with Less Effective Chemotherapy in Cancer Patients? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042064. [PMID: 35206262 PMCID: PMC8871977 DOI: 10.3390/ijerph19042064] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 02/05/2023]
Abstract
Since environmental pollutants are ubiquitous and many of them are resistant to degradation, we are exposed to many of them on a daily basis. Notably, these pollutants can have harmful effects on our health and be linked to the development of disease. Epidemiological evidence together with a better understanding of the mechanisms that link toxic substances with the development of diseases, suggest that exposure to some environmental pollutants can lead to an increased risk of developing cancer. Furthermore, several studies have raised the role of low-dose exposure to environmental pollutants in cancer progression. However, little is known about how these compounds influence the treatments given to cancer patients. In this work, we present a series of evidences suggesting that environmental pollutants such as bisphenol A (BPA), benzo[a]pyrene (BaP), persistent organic pollutants (POPs), aluminum chloride (AlCl3), and airborne particulate matter may reduce the efficacy of some common chemotherapeutic drugs used in different types of cancer. We discuss the potential underlying molecular mechanisms that lead to the generation of this chemoresistance, such as apoptosis evasion, DNA damage repair, activation of pro-cancer signaling pathways, drug efflux and action of antioxidant enzymes, among others.
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Affiliation(s)
- Francisco Alejandro Lagunas-Rangel
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, BMC Box 593, Husargatan 3, 75124 Uppsala, Sweden;
- Correspondence: (F.A.L.-R.); (H.B.S.)
| | - Wen Liu
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, BMC Box 593, Husargatan 3, 75124 Uppsala, Sweden;
| | - Helgi B. Schiöth
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, BMC Box 593, Husargatan 3, 75124 Uppsala, Sweden;
- Institute of Translational Medicine and Biotechnology, I. M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya Str. Moscow, 119991 Moscow, Russia
- Correspondence: (F.A.L.-R.); (H.B.S.)
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Yang A, Sun Z, Liu R, Liu X, Zhang Y, Zhou Y, Qiu Y, Zhang X. Transferrin-Conjugated Erianin-Loaded Liposomes Suppress the Growth of Liver Cancer by Modulating Oxidative Stress. Front Oncol 2021; 11:727605. [PMID: 34513705 PMCID: PMC8427311 DOI: 10.3389/fonc.2021.727605] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 08/06/2021] [Indexed: 12/14/2022] Open
Abstract
Background Liver cancer is one of the most malignant human cancers, with few treatments and a poor prognosis. Erianin (ERN) is a natural compound with multiple pharmacological activities that has been reported to have numerous excellent effects against liver cancer in experimental systems. However, its application in vivo has been limited due to its poor aqueous solubility and numerous off-target effects. This study aimed to improve the therapeutic efficacy of ERN by developing novel ERN-loaded tumor-targeting nanoparticles. Results In this study, ERN was loaded into liposomes by ethanol injection (LP-ERN), and the resulting LP-ERN nanoparticles were treated with transferrin to form Tf-LP-ERN to improve the solubility and enhance the tumor-targeting of ERN. LP-ERN and Tf-LP-ERN nanoparticles had smooth surfaces and a uniform particle size, with particle diameters of 62.60 nm and 88.63 nm, respectively. In HepG2 and SMMC-7721 cells, Tf-LP-ERN induced apoptosis, decreased mitochondrial membrane potentials and increased ERN uptake more effectively than free ERN and LP-ERN. In xenotransplanted mice, Tf-LP-ERN inhibited tumor growth, but had a minimal effect on body weight and organ morphology. In addition, Tf-LP-ERN nanoparticles targeted tumors more effectively than free ERN and LP-ERN nanoparticles, and in tumor tissues Tf-LP-ERN nanoparticles promoted the cleavage PARP-1, caspase-3 and caspase-9, increased the expression levels of Bax, Bad, PUMA, and reduced the expression level of Bcl-2. Moreover, in the spleen of heterotopic tumor model BALB/c mice, ERN, LP-ERN and Tf-LP-ERN nanoparticles increased the expression levels of Nrf2, HO-1, SOD-1 and SOD-2, but reduced the expression levels of P-IKKα+β and P-NF-κB, with Tf-LP-ERN nanoparticles being most effective in this regard. Tf-LP-ERN nanoparticles also regulated the expression levels of TNF-α, IL-10 and CCL11 in serum. Conclusion Tf-LP-ERN nanoparticles exhibited excellent anti-liver cancer activity in vivo and in vitro by inducing cellular apoptosis, exhibiting immunoregulatory actions, and targeting tumor tissues, and did so more effectively than free ERN and LP-ERN nanoparticles. These results suggest that the clinical utility of a Tf-conjugated LP ERN-delivery system for the treatment of liver cancer warrants exploration.
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Affiliation(s)
- Anhui Yang
- School of Life Sciences, Jilin University, Changchun, China
| | - Zhen Sun
- School of Life Sciences, Jilin University, Changchun, China
| | - Rui Liu
- School of Life Sciences, Jilin University, Changchun, China
| | - Xin Liu
- School of Life Sciences, Jilin University, Changchun, China
| | - Yue Zhang
- School of Life Sciences, Jilin University, Changchun, China
| | - Yulin Zhou
- School of Life Sciences, Jilin University, Changchun, China
| | - Ye Qiu
- Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Xinrui Zhang
- School of Life Sciences, Jilin University, Changchun, China.,Department of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
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Yang A, Sun Z, Liu R, Liu X, Zhang Y, Zhou Y, Qiu Y, Zhang X. Transferrin-Conjugated Erianin-Loaded Liposomes Suppress the Growth of Liver Cancer by Modulating Oxidative Stress. Front Oncol 2021. [DOI: 10.3389/fonc.2021.727605
expr 862146617 + 836050171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
BackgroundLiver cancer is one of the most malignant human cancers, with few treatments and a poor prognosis. Erianin (ERN) is a natural compound with multiple pharmacological activities that has been reported to have numerous excellent effects against liver cancer in experimental systems. However, its application in vivo has been limited due to its poor aqueous solubility and numerous off-target effects. This study aimed to improve the therapeutic efficacy of ERN by developing novel ERN-loaded tumor-targeting nanoparticles.ResultsIn this study, ERN was loaded into liposomes by ethanol injection (LP-ERN), and the resulting LP-ERN nanoparticles were treated with transferrin to form Tf-LP-ERN to improve the solubility and enhance the tumor-targeting of ERN. LP-ERN and Tf-LP-ERN nanoparticles had smooth surfaces and a uniform particle size, with particle diameters of 62.60 nm and 88.63 nm, respectively. In HepG2 and SMMC-7721 cells, Tf-LP-ERN induced apoptosis, decreased mitochondrial membrane potentials and increased ERN uptake more effectively than free ERN and LP-ERN. In xenotransplanted mice, Tf-LP-ERN inhibited tumor growth, but had a minimal effect on body weight and organ morphology. In addition, Tf-LP-ERN nanoparticles targeted tumors more effectively than free ERN and LP-ERN nanoparticles, and in tumor tissues Tf-LP-ERN nanoparticles promoted the cleavage PARP-1, caspase-3 and caspase-9, increased the expression levels of Bax, Bad, PUMA, and reduced the expression level of Bcl-2. Moreover, in the spleen of heterotopic tumor model BALB/c mice, ERN, LP-ERN and Tf-LP-ERN nanoparticles increased the expression levels of Nrf2, HO-1, SOD-1 and SOD-2, but reduced the expression levels of P-IKKα+β and P-NF-κB, with Tf-LP-ERN nanoparticles being most effective in this regard. Tf-LP-ERN nanoparticles also regulated the expression levels of TNF-α, IL-10 and CCL11 in serum.ConclusionTf-LP-ERN nanoparticles exhibited excellent anti-liver cancer activity in vivo and in vitro by inducing cellular apoptosis, exhibiting immunoregulatory actions, and targeting tumor tissues, and did so more effectively than free ERN and LP-ERN nanoparticles. These results suggest that the clinical utility of a Tf-conjugated LP ERN-delivery system for the treatment of liver cancer warrants exploration.
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7
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Schrenk D, Bignami M, Bodin L, Chipman JK, del Mazo J, Grasl‐Kraupp B, Hogstrand C, Hoogenboom L(R, Leblanc J, Nebbia CS, Nielsen E, Ntzani E, Petersen A, Sand S, Schwerdtle T, Wallace H, Benford D, Fürst P, Rose M, Ioannidou S, Nikolič M, Bordajandi LR, Vleminckx C. Update of the risk assessment of hexabromocyclododecanes (HBCDDs) in food. EFSA J 2021; 19:e06421. [PMID: 33732387 PMCID: PMC7938899 DOI: 10.2903/j.efsa.2021.6421] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The European Commission asked EFSA to update its 2011 risk assessment on hexabromocyclododecanes (HBCDDs) in food. HBCDDs, predominantly mixtures of the stereoisomers α-, β- and γ-HBCDD, were widely used additive flame retardants. Concern has been raised because of the occurrence of HBCDDs in the environment, food and in humans. Main targets for toxicity are neurodevelopment, the liver, thyroid hormone homeostasis and the reproductive and immune systems. The CONTAM Panel concluded that the neurodevelopmental effects on behaviour in mice can be considered the critical effects. Based on effects on spontaneous behaviour in mice, the Panel identified a lowest observed adverse effect level (LOAEL) of 0.9 mg/kg body weight (bw) as the Reference Point, corresponding to a body burden of 0.75 mg/kg bw. The chronic intake that would lead to the same body burden in humans was calculated to be 2.35 μg/kg bw per day. The derivation of a health-based guidance value (HBGV) was not considered appropriate. Instead, the margin of exposure (MOE) approach was applied to assess possible health concerns. Over 6,000 analytical results for HBCDDs in food were used to estimate the exposure across dietary surveys and age groups of the European population. The most important contributors to the chronic dietary LB exposure to HBCDDs were fish meat, eggs, livestock meat and poultry. The CONTAM Panel concluded that the resulting MOE values support the conclusion that current dietary exposure to HBCDDs across European countries does not raise a health concern. An exception is breastfed infants with high milk consumption, for which the lowest MOE values may raise a health concern.
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8
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Bertucci JI, Malala Irugal Bandaralage S, Hecker M. Assessing the cytotoxic effect of hexabromocyclododecane (HBCD) on liver tissue cultures from fathead minnow (Pimephales promelas). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 225:105523. [PMID: 32531534 DOI: 10.1016/j.aquatox.2020.105523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/08/2020] [Accepted: 05/23/2020] [Indexed: 06/11/2023]
Abstract
Hexabromocyclododecane (HBCD) is a ubiquitous environmental contaminant of current concern despite its global ban in 2013 due to its characteristics as a persistent organic pollutant. While the toxicity of HBDC in vertebrates has been extensively studied, the specific molecular mechanisms underlying its toxicity in fish are not fully understood to date. Therefore, the aim of this work was to determine the in vitro cytotoxicity of HBCD in the fathead minnow (Pimephales promelas) using liver explants, and to investigate the molecular mechanisms underlying these effects. Explants were incubated with nine different concentrations of HBCD (0.00032, 0.0016, 0.008, 0.04, 0.2, 1, 5, 25 and 125 mg HBCD/L) for 6 and 24 h, and cytotoxicity was tested by using the Lactate Dehydrogenase (LDH) assay. The expression of genes with a key role in the regulation of apoptosis, oxidative stress, cryoprotective responses to reactive oxygen species (ROS), and xenobiotic metabolism was also measured in liver explants after exposure to 0.00032, 0.0016, 0.008, 0.2, and 25 mg HBCD/L. After 6 h, a concentration-dependent significant increase in cytotoxicity was found between 0.008 and 1 mg/L HBCD, followed by a decrease between 1 and 25 mg/L. Cytotoxicity reached 100 % at a concentration of 125 mg/L HBCD. After 24 h, HBCD showed a biphasic response with a concentration-dependent decrease in cytotoxicity between 0.0016 and 1 mg/L that returned to baseline levels at 5 mg/L. Then, cytotoxicity increased at concentrations greater than 5 mg/L to reach a maximum value at 125 mg/L. Changes in the expression of genes related to apoptosis (apoEn, apoIn, caspase2, caspase9 and bax) were also time- and concentration-dependent. Genes related to antioxidant responses such as gst and catalase were generally decreased after 6 h of incubation and increased after 24 h. The same pattern was observed for cyp1a and cyp3a, both related to xenobiotic metabolism. The expression of genes related to cryoprotective responses anti ROS (akt and pi3k) decreased at almost all HBCD concentrations tested after 6 h but remained unaltered after 24 h. Overall, we demonstrated that the cytotoxic effect of HBCD in fathead minnow liver explant was not proportional to its concentration in the culture media. Cytotoxicity was highly dynamic and did not follow a typical concentration-response pattern, complicating its toxicological characterization.
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Affiliation(s)
- J I Bertucci
- Toxicology Centre, University of Saskatchewan. Saskatoon, Saskatchewan, Canada
| | | | - M Hecker
- Toxicology Centre, University of Saskatchewan. Saskatoon, Saskatchewan, Canada; School of the Environment and Sustainability, University of Saskatchewan. Saskatoon, Saskatchewan, Canada.
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Oncogenic Potential of Bisphenol A and Common Environmental Contaminants in Human Mammary Epithelial Cells. Int J Mol Sci 2020; 21:ijms21103735. [PMID: 32466334 PMCID: PMC7279350 DOI: 10.3390/ijms21103735] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/16/2020] [Accepted: 05/19/2020] [Indexed: 12/24/2022] Open
Abstract
There is an ample epidemiological evidence to support the role of environmental contaminants such as bisphenol A (BPA) in breast cancer development but the molecular mechanisms of their action are still not fully understood. Therefore, we sought to analyze the effects of three common contaminants (BPA; 4-tert-octylphenol, OP; hexabromocyclododecane, HBCD) on mammary epithelial cell (HME1) and MCF7 breast cancer cell line. We also supplied some data on methoxychlor, MXC; 4-nonylphenol, NP; and 2-amino-1-methyl-6-phenylimidazo [4–b] pyridine, PhIP. We focused on testing the prolonged (two months) exposure to low nano-molar concentrations (0.0015–0.0048 nM) presumed to be oncogenic and found that they induced DNA damage (evidenced by upregulation of pH2A.X, pCHK1, pCHK2, p-P53) and disrupted the cell cycle. Some agents induced epigenetic (methylation) changes of tumor suppressor genes TIMP3, CHFR, ESR1, IGSF4, CDH13, and GSTP1. Obviously, the accumulation of these molecular alterations is an essential base for cancer development. Consistent with this, we observed that these agents increased cellular invasiveness through collagen. Cellular abilities to form colonies in soft agar were increased for MCF7. Toxic agents induced phosphorylation of protein kinase such as EGFR, CREB, STAT6, c-Jun, STAT3, HSP6, HSP27, AMPKα1, FAK, p53, GSK-3α/β, and P70S6 in HME1. Most of these proteins are involved in potential oncogenic pathways. Overall, these data clarify the molecular alterations that can be induced by some common environmental contaminants in mammary epithelial cells which could be a foundation to understand environmental carcinogenesis.
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Wang X, Chen Z, Fan X, Li W, Qu J, Dong C, Wang Z, Ji Z, Li Y. Inhibition of DNM1L and mitochondrial fission attenuates inflammatory response in fibroblast-like synoviocytes of rheumatoid arthritis. J Cell Mol Med 2019; 24:1516-1528. [PMID: 31755231 PMCID: PMC6991664 DOI: 10.1111/jcmm.14837] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/12/2019] [Accepted: 11/08/2019] [Indexed: 12/29/2022] Open
Abstract
Mitochondrial fission and fusion are important for mitochondrial function, and dynamin 1-like protein (DNM1L) is a key regulator of mitochondrial fission. We investigated the effect of mitochondrial fission on mitochondrial function and inflammation in fibroblast-like synoviocytes (FLSs) during rheumatoid arthritis (RA). DNM1L expression was determined in synovial tissues (STs) from RA and non-RA patients. FLSs were isolated from STs and treated with a DNM1L inhibitor (mdivi-1, mitochondrial division inhibitor 1) or transfected with DNM1L-specific siRNA. Mitochondrial morphology, DNM1L expression, cell viability, mitochondrial membrane potential, reactive oxygen species (ROS), apoptosis, inflammatory cytokine expression and autophagy were examined. The impact of mdivi-1 treatment on development and severity of collagen-induced arthritis (CIA) was determined in mice. Up-regulated DNM1L expression was associated with reduced mitochondrial length in STs from patients with RA and increased RA severity. Inhibition of DNM1L in FLSs triggered mitochondrial depolarization, mitochondrial elongation, decreased cell viability, production of ROS, IL-8 and COX-2, and increased apoptosis. DNM1L deficiency inhibited IL-1β-mediated AKT/IKK activation, NF-κBp65 nuclear translocation and LC3B-related autophagy, but enhanced NFKBIA expression. Treatment of CIA mice with mdivi-1 decreased disease severity by modulating inflammatory cytokine and ROS production. Our major results are that up-regulated DNM1L and mitochondrial fission promoted survival, LC3B-related autophagy and ROS production in FLSs, factors that lead to inflammation by regulating AKT/IKK/NFKBIA/NF-κB signalling. Thus, inhibition of DNM1L may be a new strategy for treatment of RA.
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Affiliation(s)
- Xiaoyan Wang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhufeng Chen
- Department of Orthopaedics, Tangdu Hospital, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Xuemei Fan
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Li
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiaqi Qu
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chuan Dong
- Department of Orthopaedics, Tangdu Hospital, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Zhixue Wang
- Department of Orthopaedics, Tangdu Hospital, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Zhenwei Ji
- Department of Orthopaedics, Tangdu Hospital, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Yang Li
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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11
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Liang W, Zhang Y, Song L, Li Z. 2,3'4,4',5-Pentachlorobiphenyl induces hepatocellular carcinoma cell proliferation through pyruvate kinase M2-dependent glycolysis. Toxicol Lett 2019; 313:108-119. [PMID: 31251971 DOI: 10.1016/j.toxlet.2019.06.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 05/24/2019] [Accepted: 06/21/2019] [Indexed: 02/06/2023]
Abstract
Polychlorinated biphenyls (PCBs) are classic persistent organic pollutants (POPs) and are associated with the progression of many cancers, including liver cancer. The present study investigated the effect of 2,3'4,4',5-pentachlorobiphenyl (PCB118) on hepatocellular carcinoma cell proliferation and its underlying mechanisms. The results indicated that PCB118 exposure promotes the proliferation and glycolysis of hepatocellular carcinoma SMMC-7721 cells. Moreover, PCB118 exposure increased the expression level of pyruvate kinase M2 (PKM2) and its nuclear translocation, whereas treatment with PKM2 shRNA suppressed the induction of cell proliferation and glycolysis by PCB118. PCB118 stimulated reactive oxygen species (ROS) production by activating nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. Treatment with the antioxidants N-acetyl-L-cysteine (NAC) and superoxide dismutase (SOD) prevented PCB118-induced effects on PKM2, cell proliferation and glycolysis. Furthermore, we found that PCB118 activated NADPH oxidase through the aryl hydrocarbon receptor (AhR) in SMMC-7721 cells. Consistently, treatment with AhR shRNA suppressed PCB118-induced effects on PKM2, cell proliferation and glycolysis. Overall, these results indicated that PCB118 promotes HCC cell proliferation via PKM2-dependent upregulation of glycolysis, which is mediated by AhR/NADPH oxidase-induced ROS production.
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Affiliation(s)
- Wenli Liang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Yuting Zhang
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
| | - Li Song
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China.
| | - Zhuoyu Li
- Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Shanxi University, Taiyuan 030006, China
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Chai Z, Yin X, Chen J, Shi J, Sun J, Liu C, Liu F, Cheng S. MicroRNA-101 modulates cisplatin chemoresistance in liver cancer cells via the DNA-PKcs signaling pathway. Oncol Lett 2019; 18:3655-3663. [PMID: 31516578 PMCID: PMC6733017 DOI: 10.3892/ol.2019.10674] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Accepted: 06/05/2019] [Indexed: 12/27/2022] Open
Abstract
Due to the high incidence of liver cancer, chemoradiotherapy and prognosis of liver cancer are a primary focus of medical research. microRNAs (miRNAs/miRs) serve crucial roles in resistance to chemotherapy and radiotherapy. The aim of the present study was to investigate the effects of miR-101 on the chemotherapeutic efficacy of cisplatin (CDDP) in liver cancer. First, human liver cancer cells (HepG2) were transfected with a miR-101 mimic or miR-101 inhibitor to bidirectionally regulate the expression of miR-101. Cell proliferation, apoptosis, intracellular reactive oxygen species and comet assay results indicated that the upregulation of miR-101 sensitized HepG2 cells to CDDP, and downregulation of miR-101 reduced chemosensitivity. A xenograft mouse model further confirmed that miR-101 overexpression increased CDDP sensitivity in liver cancer. Luciferase reporter and western blotting assays demonstrated that transfection of the miR-101 mimic markedly reduced activity of the DNA-dependent protein kinase catalytic subunit/protein kinase B/mammalian target of rapamycin (DNA-PKcs/Akt/mTOR) pathway and increased expression of apoptotic protein caspase 3, which is induced by CDDP treatment. By contrast, miR-101 inhibitors partially reversed these changes. Moreover, the miR-101 mimic suppressed activity of the nuclear factor-κB (NF-κB) pathway, leading to increased susceptibility of HepG2 cells to chemotherapeutic agents. In conclusion, miR-101 overexpression augmented cytotoxicity and reduced chemoresistance to CDDP in HepG2 cells, and this was associated with negative regulation of DNA-PKcs/Akt/NF-κB signaling.
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Affiliation(s)
- Zongtao Chai
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Xiaolan Yin
- Precision Medical Center, Shanghai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Jin Chen
- Precision Medical Center, Shanghai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Jie Shi
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Juxian Sun
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Chang Liu
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Feng Liu
- Precision Medical Center, Shanghai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Shuqun Cheng
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200433, P.R. China
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13
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Zhang P, Li C, Jin F, Su H, Shao H, Jin M, Wang S, She Y, Zheng L, Wang J, Yuan Y. Tracking Changes of Hexabromocyclododecanes during the Refining Process in Peanut, Corn, and Soybean Oils. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:9880-9886. [PMID: 29058427 DOI: 10.1021/acs.jafc.7b03606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Hexabromocyclododecanes (HBCDs) are harmful compounds, which could be taken up by plants and occur in vegetable oils. In this study, we systematically tracked the changes of HBCDs during different refining processes in peanut, corn, and soybean oils in China. The refining processes were efficient at removing the concentrations of total HBCDs (∑HBCDs), although the levels did increase for peanut and corn oils during the neutralization and bleaching steps. Quite significant reductions in the ∑HBCD concentrations were observed for soybean oils (71-100%) through refining. α-HBCD and ∑HBCD levels were significantly and positively correlated with the peroxidation value (PV), suggesting that PV might be an indicator reflecting the changes of α-HBCD and ∑HBCDs during the oil-refining processes. HBCD intakes from vegetable oils represented a low concern for public health. The results might be helpful for quality and process control with a view to minimize the levels of HBCDs in vegetable oils.
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Affiliation(s)
- Peng Zhang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Chunmei Li
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Fen Jin
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Hang Su
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Hua Shao
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Maojun Jin
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Shanshan Wang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Yongxin She
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Lufei Zheng
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Jing Wang
- Key Laboratory of Agro-product Quality and Safety, Institute of Quality Standards and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences , Beijing 100081, People's Republic of China
| | - Yuwei Yuan
- Key Laboratory for Pesticide Residue Detection, Ministry of Agriculture, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences , Hangzhou, Zhejiang 310021, People's Republic of China
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Aroclor1254 disrupts the blood-testis barrier by promoting endocytosis and degradation of junction proteins via p38 MAPK pathway. Cell Death Dis 2017; 8:e2823. [PMID: 28542131 PMCID: PMC5520738 DOI: 10.1038/cddis.2017.224] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 04/09/2017] [Accepted: 04/12/2017] [Indexed: 12/24/2022]
Abstract
The blood–testis barrier (BTB) constituted by coexisting junction apparatus between Sertoli cells (SCs) plays an important role in spermatogenesis, which is a known target of various environmental toxicants. The commercial polychlorinated biphenyls mixture, Aroclor1254, has been shown to impair male reproduction by decreasing sperm count and affecting SC metabolism. This study was designed to investigate the effects of Aroclor1254 on the BTB integrity and elucidate the underlying mechanisms. We found that Aroclor1254 treatment in rats (1 or 3 mg/kg per day for 21 consecutive days) and in primary cultured SCs (5 or 10 μg/ml for 48 h) could induce BTB disruption via p38 MAPK pathway, concurrently with increments in junction proteins (JAM-A, N-cadherin, and β-catenin) endocytosis, and occludin ubiquitination. Either inhibition of caveolin-dependent membrane protein internalization by cholesterol oxidase or silencing E3 ubiquitine ligase Itch by small interfering RNA could partially counteract the effects of Aroclor1254 on the barrier function of cultured SCs. These results demonstrate that Aroclor1254 disrupts the BTB function by promoting the caveolin-dependent endocytosis and ubiquitine–proteasome degradation of junction proteins through the p38 MAPK pathway, which might be the potential reasons for its negative effects on spermatogenesis and male reproduction.
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15
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Zhao M, Yu S, Zhang M. Differential expression of multidrug resistance‑related proteins in adriamycin‑resistant (pumc‑91/ADM) and parental (pumc‑91) human bladder cancer cell lines. Mol Med Rep 2016; 14:4741-4746. [PMID: 27748815 DOI: 10.3892/mmr.2016.5806] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 08/16/2016] [Indexed: 11/05/2022] Open
Abstract
Multidrug resistance (MDR) is the major obstacle to bladder cancer chemotherapy. Several mechanisms have been implicated in the development of MDR, including extrusion of the drug by cell membrane pumps, associated with P‑glycoprotein (P‑gp) and multidrug resistance‑associated protein (MRP); increased DNA damage repair, associated with topoisomerase II (Topo II); suppression of drug‑induced apoptosis, associated with p53; and regulation of cancer cell growth, associated with vascular endothelial growth factor (VEGF). In the present study, the expression levels of these five markers were detected in an adriamycin (ADM)‑resistant human bladder cancer cell line (pumc‑91/ADM) and its parental cell line (pumc‑91), in order to determine which marker is more important, or whether all of them participate in drug resistance. The expression levels of P‑gp, MRP, Topo II, VEGF and p53 were measured in the two cell lines by reverse transcription‑quantitative polymerase chain reaction, western blotting and immunohistochemistry. A significant increase in P‑gp, MRP and VEGF, and a decrease in Topo II mRNA expression were detected in the pumc‑91/ADM drug‑resistant cell line compared with the pumc‑91 cell line; however, no difference in p53 mRNA expression was detected between the cells. In pumc‑91/ADM cells, the protein expression levels of P‑gp and MRP were upregulated, whereas Topo II was significantly decreased. However, no marked differences in p53 or VEGF expression were detected between the two cell lines at the protein level. The cytoplasmic and cell membrane localization of P‑gp and MRP, the cytoplasmic localization of VEGF, and the nuclear localization of p53 and Topo II were confirmed in the two cell lines. The present study detected increased P‑gp and MRP, and reduced Topo II expression in pumc‑91/ADM cells compared with pumc‑91 cells; however, no difference was detected in p53 and VEGF expression between the cell lines. In conclusion, a significant upregulation of MRP and downregulation of Topo II were detected in the ADM‑resistant human bladder cancer cell line (pumc‑91/ADM) compared with in the parental cell line (pumc‑91).
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Affiliation(s)
- Man Zhao
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Shuliang Yu
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, P.R. China
| | - Man Zhang
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, P.R. China
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16
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Huang Q, Zhan L, Cao H, Li J, Lyu Y, Guo X, Zhang J, Ji L, Ren T, An J, Liu B, Nie Y, Xing J. Increased mitochondrial fission promotes autophagy and hepatocellular carcinoma cell survival through the ROS-modulated coordinated regulation of the NFKB and TP53 pathways. Autophagy 2016; 12:999-1014. [PMID: 27124102 PMCID: PMC4922447 DOI: 10.1080/15548627.2016.1166318] [Citation(s) in RCA: 247] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Mitochondrial morphology is dynamically remodeled by fusion and fission in cells, and dysregulation of this process is closely implicated in tumorigenesis. However, the mechanism by which mitochondrial dynamics influence cancer cell survival is considerably less clear, especially in hepatocellular carcinoma (HCC). In this study, we systematically investigated the alteration of mitochondrial dynamics and its functional role in the regulation of autophagy and HCC cell survival. Furthermore, the underlying molecular mechanisms and therapeutic application were explored in depth. Mitochondrial fission was frequently upregulated in HCC tissues mainly due to an elevated expression ratio of DNM1L to MFN1, which significantly contributed to poor prognosis of HCC patients. Increased mitochondrial fission by forced expression of DNM1L or knockdown of MFN1 promoted the survival of HCC cells both in vitro and in vivo mainly by facilitating autophagy and inhibiting mitochondria-dependent apoptosis. We further demonstrated that the survival-promoting role of increased mitochondrial fission was mediated via elevated ROS production and subsequent activation of AKT, which facilitated MDM2-mediated TP53 degradation, and NFKBIA- and IKK-mediated transcriptional activity of NFKB in HCC cells. Also, a crosstalk between TP53 and NFKB pathways was involved in the regulation of mitochondrial fission-mediated cell survival. Moreover, treatment with mitochondrial division inhibitor-1 significantly suppressed tumor growth in an in vivo xenograft nude mice model. Our findings demonstrate that increased mitochondrial fission plays a critical role in regulation of HCC cell survival, which provides a strong evidence for this process as drug target in HCC treatment.
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Affiliation(s)
- Qichao Huang
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Lei Zhan
- b Department of Gastroenterology , Second Affiliated Hospital of Harbin Medical University , Harbin , China
| | - Haiyan Cao
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Jibin Li
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Yinghua Lyu
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Xu Guo
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Jing Zhang
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Lele Ji
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Tingting Ren
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
| | - Jiaze An
- c Department of Hepatobiliary Surgery , Xijing Hospital, Fourth Military Medical University , Xi'an , China
| | - Bingrong Liu
- b Department of Gastroenterology , Second Affiliated Hospital of Harbin Medical University , Harbin , China
| | - Yongzhan Nie
- d State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University , Xi'an , China
| | - Jinliang Xing
- a State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University , Xi'an , China
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17
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Influence of hexabromocyclododecane and 4-nonylphenol on the regulation of cell growth, apoptosis and migration in prostatic cancer cells. Toxicol In Vitro 2016; 32:240-7. [DOI: 10.1016/j.tiv.2016.01.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 01/07/2016] [Accepted: 01/15/2016] [Indexed: 01/13/2023]
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18
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Wang F, Zhang H, Geng N, Zhang B, Ren X, Chen J. New Insights into the Cytotoxic Mechanism of Hexabromocyclododecane from a Metabolomic Approach. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:3145-3153. [PMID: 26876804 DOI: 10.1021/acs.est.5b03678] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The toxic effects of hexabromocyclododecane (HBCD) are complex, and the underlying toxicological mechanisms are still not completely understood. In this study, a pseudotargeted metabolomic approach based on the UHPLC/Q-Trap MS system was developed to assess the HBCD-intervention-related metabolic alteration in HepG2 cells. In addition, some physiologic indicators and relevant enzyme activities were measured. HBCD exposure obviously impaired metabolic homeostasis and induced oxidative stress, even at an environmentally relevant dose (0.05 mg/L). Metabolic profiling and multivariate analysis indicated that the main metabolic pathways perturbed by HBCD included amino acid metabolism, protein biosynthesis, fatty acid metabolism, and phospholipid metabolism. HBCD suppressed the cell uptake of amino acids, mainly through inhibition of the activity of membrane transport protein Na(+)/K(+)-ATPase. HBCD down-regulated glycolysis and β-oxidation of long-chain fatty acids, causing a large decrease of ATP production. As a result, the across-membrane transport of amino acids was further inhibited. Meanwhile, HBCD induced a significant increase of total phospholipids, mainly through the remodeling of phospholipids from the increased free fatty acids. The obtained metabolomic results also provided some new evidence and clues regarding the toxicological mechanisms of HBCD that contribute to obesity, diabetes, nervous system damage, and developmental disorders.
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Affiliation(s)
- Feidi Wang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haijun Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | - Ningbo Geng
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baoqin Zhang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | - Xiaoqian Ren
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiping Chen
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
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19
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Using digital gene expression profile to detect representational difference of Chlamys farreri genes after laboratory exposure to persistent organic pollutants. Genes Genomics 2015. [DOI: 10.1007/s13258-015-0360-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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20
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Ding K, Fan L, Chen S, Wang Y, Yu H, Sun Y, Yu J, Wang L, Liu X, Liu Y. Overexpression of osteopontin promotes resistance to cisplatin treatment in HCC. Oncol Rep 2015; 34:3297-303. [PMID: 26397192 DOI: 10.3892/or.2015.4306] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 07/13/2015] [Indexed: 11/06/2022] Open
Abstract
Osteopontin (OPN) is a multi-functional cytokine involved in cell survival, migration and adhesion. Increasing evidence has elucidated its role in tumorigenesis, progression and metastasis. However, the role of OPN in chemoresistance of human hepatocellular carcinoma (HCC) has not yet been clarified. In the present study, we examined the expression of OPN in human HCC samples before and after cisplatin-treatment, the results showed that OPN was significantly increased in cisplatin-resistant specimens. We then studied the effect of cisplatin on OPN expression in HCC cells, after exposure to cisplatin, the expression of OPN in HCC cells was elevated compared to control cells. We also found that PI3K/AKT signaling pathway was also activated by cisplatin and this effect was induced by the OPN pathway. To study the effect of OPN on chemoresistance, HCC cells were treated with cisplatin along with OPN. Incubation with OPN enchanced the chemoresistance of HCC cells to cisplatin. In contrast, blockage of OPN pathway promoted the chemosensitivity of HCC cells to cisplatin. Our results suggest that OPN enhanced chemoresistance of cisplatin in HCC cells by activating PI3K/AKT signaling pathway, blocking the OPN pathway might be a novel way to overcome the disease.
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Affiliation(s)
- Kun Ding
- Department of Liver Diseases, Jinan Infectious Disease Hospital, Shandong University School of Medicine, Jian, Shandong 250000, P.R. China
| | - Lu Fan
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Shijun Chen
- Department of Liver Diseases, Jinan Infectious Disease Hospital, Shandong University School of Medicine, Jian, Shandong 250000, P.R. China
| | - Yanna Wang
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Haifeng Yu
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Yanni Sun
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Jiguang Yu
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Li Wang
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Xiangzhong Liu
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
| | - Youde Liu
- Yantai Infectious Disease Hospital, Yantai, Shandong 264001, P.R. China
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21
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Ou Y, Zhai D, Wu N, Li X. Downregulation of miR-363 increases drug resistance in cisplatin-treated HepG2 by dysregulating Mcl-1. Gene 2015; 572:116-122. [PMID: 26143754 DOI: 10.1016/j.gene.2015.07.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 05/05/2015] [Accepted: 07/01/2015] [Indexed: 12/21/2022]
Abstract
Systemic therapy with cytotoxic agents provides marginal benefit in hepatocellular carcinoma (HCC) treatment especially for patients with advanced HCC. Cisplatin is one of the most active cytotoxic agents for HCC treatment. However, acquisition of cisplatin resistance is common, and one important underlying mechanism of such resistance is apoptosis-resistance. In this study, we found that miR-363 levels were significantly decreased in HCC patients treated with cisplatin-based chemotherapy. MiR-363 levels were also lower in cisplatin-resistant HepG2 (HepG2-R) cells than in HepG2 cells. Exogenous miR-363 significantly overcame cisplatin resistance in HepG2-R cells, whereas miR-363 knockdown increased the cell viability during cisplatin treatment. We further demonstrated that miR-363 directly targeted to Mcl-1 3'-UTR (3'-Untranslated Regions). Downregulation of miR-363 resulted in upregulation of Mcl-1 which is a key member of anti-apoptotic Bcl-2 family and increased drug resistance. We finally demonstrated that miR-363 decreased cisplatin resistance of HCC cell, partly by targeting Mcl-1. These data suggest that the combination of miR-363 and cisplatin may represent a novel approach in treatment for HCC, thus offering a new target for chemotherapy of HCC.
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Affiliation(s)
- Yangyang Ou
- Xiangya Hospital of Central-South University, Changsha, Hunan 410008, PR China
| | - Denggao Zhai
- Xiangya Hospital of Central-South University, Changsha, Hunan 410008, PR China
| | - Nan Wu
- Xiangya Hospital of Central-South University, Changsha, Hunan 410008, PR China
| | - Xiaoli Li
- Xiangya Hospital of Central-South University, Changsha, Hunan 410008, PR China.
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22
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Fritsch EB, Stegeman JJ, Goldstone JV, Nacci DE, Champlin D, Jayaraman S, Connon RE, Pessah IN. Expression and function of ryanodine receptor related pathways in PCB tolerant Atlantic killifish (Fundulus heteroclitus) from New Bedford Harbor, MA, USA. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 159:156-66. [PMID: 25546006 PMCID: PMC4300256 DOI: 10.1016/j.aquatox.2014.12.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/14/2014] [Accepted: 12/17/2014] [Indexed: 05/12/2023]
Abstract
Atlantic killifish (Fundulus heteroclitus) thrive in New Bedford Harbor (NBH), MA, highly contaminated with polychlorinated biphenyls (PCBs). Resident killifish have evolved tolerance to dioxin-like (DL) PCBs, whose toxic effects through the aryl hydrocarbon receptor (AhR) are well studied. In NBH, non-dioxin like PCBs (NDL PCBs), which lack activity toward the AhR, vastly exceed levels of DL congeners yet how killifish counter NDL toxic effects has not been explored. In mammals and fish, NDL PCBs are potent activators of ryanodine receptors (RyR), Ca(2+) release channels necessary for a vast array of physiological processes. In the current study we compared the expression and function of RyR related pathways in NBH killifish with killifish from the reference site at Scorton Creek (SC, MA). Relative to the SC fish, adults from NBH displayed increased levels of skeletal muscle RyR1 protein, and increased levels of FK506-binding protein 12 kDa (FKBP12) an accessory protein essential for NDL PCB-triggered changes in RyR channel function. In accordance with increased RyR1 levels, NBH killifish displayed increased maximal ligand binding, increased maximal response to Ca(2+) activation and increased maximal response to activation by the NDL PCB congener PCB 95. Compared to SC, NBH embryos and larvae had increased levels of mtor and ryr2 transcripts at multiple stages of development, and generations, while levels of serca2 were decreased at 9 days post-fertilization in the F1 and F2 generations. These findings suggest that there are compensatory and heritable changes in RyR mediated Ca(2+) signaling proteins or potential signaling partners in NBH killifish.
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Affiliation(s)
- Erika B Fritsch
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA.
| | - John J Stegeman
- Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Jared V Goldstone
- Department of Biology, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Diane E Nacci
- Atlantic Ecology Division, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Denise Champlin
- Atlantic Ecology Division, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Saro Jayaraman
- Atlantic Ecology Division, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Richard E Connon
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, CA, USA
| | - Isaac N Pessah
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California Davis, Davis, CA, USA; The Medical Investigations of Neurodevelopmental Disorders (MIND) Institute, University of California Davis Medical Center, Sacramento, USA
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23
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Yufang Z, Cen C, Xiu W, Panpan G, Xinyu Z, Zhiqiang Y, Jing A. HBCD and PCBs enhance the cell migration and invasion of HepG2 via the PI3 K/Akt pathway. Toxicol Res (Camb) 2015. [DOI: 10.1039/c4tx00108g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Exposure to hexabromocyclododecane (HBCD) and polychlorinated biphenyls (PCBs) has been proved to result in diversified toxicity, including cancerogenesis.
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Affiliation(s)
- Zhong Yufang
- Institute of Environmental Pollution and Health
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Chen Cen
- Institute of Environmental Pollution and Health
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Wang Xiu
- Institute of Environmental Pollution and Health
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Guo Panpan
- Institute of Environmental Pollution and Health
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Zhang Xinyu
- Institute of Environmental Pollution and Health
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yu Zhiqiang
- State Key Laboratory of Organic Geochemistry
- Guangzhou Institute of Geochemistry
- Chinese Academy of Sciences
- Guangzhou 510640
- P. R. China
| | - An Jing
- Institute of Environmental Pollution and Health
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
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