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Guo L, Hu C, Yao M, Han G. Mechanism of sorafenib resistance associated with ferroptosis in HCC. Front Pharmacol 2023; 14:1207496. [PMID: 37351514 PMCID: PMC10282186 DOI: 10.3389/fphar.2023.1207496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/26/2023] [Indexed: 06/24/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most familiar primary hepatic malignancy with a poor prognosis. The incidence of HCC and the associated deaths have risen in recent decades. Sorafenib is the first drug to be approved by the Food and Drug Administration (FDA) for routine use in the first-line therapy of patients with advanced HCC. However, only about 30% of patients with HCC will be benefited from sorafenib therapy, and drug resistance typically develops within 6 months. In recent years, the mechanisms of resistance to sorafenib have gained the attention of a growing number of researchers. A promising field of current studies is ferroptosis, which is a novel form of cell death differing from apoptosis, necroptosis, and autophagy. This process is dependent on the accumulation of intracellular iron and reactive oxygen species (ROS). Furthermore, the increase in intracellular iron levels and ROS can be significantly observed in cells resistant to sorafenib. This article reviews the mechanisms of resistance to sorafenib that are related to ferroptosis, evaluates the relationship between ferroptosis and sorafenib resistance, and explores new therapeutic approaches capable of reversing sorafenib resistance in HCC through the modulation of ferroptosis.
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2
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Behera R, Sharma V, Grewal AK, Kumar A, Arora B, Najda A, Albadrani GM, Altyar AE, Abdel-Daim MM, Singh TG. Mechanistic correlation between mitochondrial permeability transition pores and mitochondrial ATP dependent potassium channels in ischemia reperfusion. Biomed Pharmacother 2023; 162:114599. [PMID: 37004326 DOI: 10.1016/j.biopha.2023.114599] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023] Open
Abstract
Mitochondrial dysfunction is one of the fundamental causes of ischemia reperfusion (I/R) damage. I/R refers to the paradoxical progression of cellular dysfunction and death that occurs when blood flow is restored to previously ischemic tissues. I/R causes a significant rise in mitochondrial permeability resulting in the opening of mitochondrial permeability transition pores (MPTP). The MPTP are broad, nonspecific channels present in the inner mitochondrial membrane (IMM), and are known to mediate the deadly permeability alterations that trigger mitochondrial driven cell death. Protection from reperfusion injury occurs when long-term ischemia is accompanied by short-term ischemic episodes or inhibition of MPTP from opening via mitochondrial ATP dependent potassium (mitoKATP) channels. These channels located in the IMM, play an essential role in ischemia preconditioning (PC) and protect against cell death by blocking MPTP opening. This review primarily focuses on the interaction between the MPTP and mitoKATP along with their role in the I/R injury. This article also describes the molecular composition of the MPTP and mitoKATP in order to promote future knowledge and treatment of diverse I/R injuries in various organs.
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Chen T, Zhang S, Zhou D, Lu P, Mo X, Tamrakar R, Yang X. Screening of co-pathogenic genes of non-alcoholic fatty liver disease and hepatocellular carcinoma. Front Oncol 2022; 12:911808. [PMID: 36033523 PMCID: PMC9410624 DOI: 10.3389/fonc.2022.911808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is a risk factor for hepatocellular carcinoma (HCC). However, its carcinogenic mechanism is still unclear, looking for both diseases’ transcriptome levels, the same changes as we are looking for NAFLD may provide a potential mechanism of action of HCC. Thus, our study aimed to discover the coexisting pathogenic genes of NAFLD and HCC. Methods We performed a variance analysis with public data for both diseases. At the same time, weighted gene correlation network analysis (WGCNA) was used to find highly correlated gene modules in both diseases. The darkturquoise gene module was found to be highly correlated with both diseases. Based on the diagnosis related module genes and the differential genes of the two diseases, we constructed diagnostic and prognostic models by logistic regression, univariate Cox regression, and LASSO regression. Public datasets verified the results. Meanwhile, we built a competing endogenous RNA (ceRNA) network based on the model genes and explored the related pathways and immune correlation involved in the two diseases by using Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and gene set enrichment analyses. Immunohistochemistry was used to verify the different expression of ABCC5 and TUBG1 among the normal liver, NAFLD, and HCC tissues. Sodium palmitate/sodium oleate was used to establish high-fat cell models, and Real Time Quantitative Polymerase Chain Reaction (RT-qPCR) was used to verify the messenger RNA (mRNA) expression of ABCC5 in lipidization cells. Results A total of 26 upregulated genes and 87 downregulated genes were found using limma package identification analysis. According to WGCNA, the darkturquoise gene module was highly correlated with the prognosis of both diseases. The coexisting genes acquired by the two groups were only three central genes, that is, ABCC5, DHODH and TUBG1. The results indicated that the diagnostic and prognostic models constructed by ABCC5 and TUBG1 genes had high accuracy in both diseases. The results of immunohistochemistry showed that ABCC5 and TUBG1 were significantly overexpressed in NAFLD and HCC tissues compared with normal liver tissues. The Oil Red O staining and triglyceride identified the successful construction of HepG2 and LO2 high-fat models using PA/OA. The results of RT-qPCR showed that the lipidization of LO2 and HepG2 increased the mRNA expression of ABCC5. Conclusions The gene model constructed by ABCC5 and TUBG1 has high sensibility and veracity in the diagnosis of NAFLD as well as the diagnosis and prognosis of HCC. ABCC5 and TUBG1 may play an important role in the development of NAFLD to HCC. In addition, lipidization could upregulate the mRNA expression of ABCC5 in HCC.
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Affiliation(s)
- Ting Chen
- Department of Endocrinology, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Siwen Zhang
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, China
- *Correspondence: Xi Yang, ; Siwen Zhang,
| | - Dongmei Zhou
- Department of Endocrinology, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Peipei Lu
- Department of Geriatric Endocrinology and Metabolism, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Xianglai Mo
- Department of Geriatric Endocrinology and Metabolism, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Rashi Tamrakar
- Department of Endocrinology, First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - Xi Yang
- Department of Geriatric Endocrinology and Metabolism, First Affiliated Hospital, Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, First Affiliated Hospital, Guangxi Medical University, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
- *Correspondence: Xi Yang, ; Siwen Zhang,
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Li Y, Liao Z, Wei X, Xiao X, Hu J. Epifriedelanol enhances adriamycin-induced cytotoxicity towards K562/ADM cells by down regulating of P-gp and MRP2. Xenobiotica 2022; 52:389-396. [PMID: 35582915 DOI: 10.1080/00498254.2022.2079441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
1. Multidrug resistance (MDR) is a critical issue during chemotherapy of cancers. Epifriedelanol (Epi) is the effective compounds from the Root Bark of Ulmus davidiana. This study aims to investigate the effect of Epi on MDR and its potential mechanism in the adriamycin (Adr)-resistant K562/ADM cells.2. The effect of Epi on MDR, P-glycoprotein (P-gp) and multidrug resistance-associated proteins (MRPs) were investigated in the adriamycin (Adr)-resistant K562/ADM cells. In addition, the alterations of nuclear receptor pregnane X receptor (PXR) and constitutive androstane receptor (CAR) mRNA expression levels in K562/ADM cells after Epi treatment were also examined.3. Epi significantly enhanced Adr-induced cytotoxicity towards K562/ADM cells. Combination of Epi and Adr can significantly reduce the 50% inhibitory concentration (IC50) of K562/ADM cells to Adr. The reversal fold was 1.83 and 3.64 after treated with Epi at 10 and 20 μM, respectively. The intracellular accumulation of Adr was significant increased after exposure to Epi at 5-20 μM compared with the control group. Furthermore, Epi treatment significantly decreased the mRNA and protein expression of P-gp and MRP2 in K562/ADM cells.4. The present study demonstrated that Epi could enhance Adr-induced cytotoxicity towards K562/ADM cells accompanied by the down-regulation of P-gp and MRP2.
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Affiliation(s)
- Yuhua Li
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zhengzheng Liao
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Xiaohua Wei
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Xiong Xiao
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jinfang Hu
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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5
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MRP5 and MRP9 play a concerted role in male reproduction and mitochondrial function. Proc Natl Acad Sci U S A 2022; 119:2111617119. [PMID: 35121660 PMCID: PMC8832985 DOI: 10.1073/pnas.2111617119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2021] [Indexed: 12/17/2022] Open
Abstract
Multidrug Resistance Proteins (MRPs) are typically implicated in cancer biology. Here, we show that MRP9 and MRP5 localize to mitochondrial-associated membranes and play a concerted role in maintaining mitochondrial homeostasis and male reproductive fitness. Our work fills in significant gaps in our understanding of MRP9 and MRP5 with wider implications in male fertility. It is plausible that variants in these transporters are associated with male reproductive dysfunction. Multidrug Resistance Proteins (MRPs) are transporters that play critical roles in cancer even though the physiological substrates of these enigmatic transporters are poorly elucidated. In Caenorhabditis elegans, MRP5/ABCC5 is an essential heme exporter because mrp-5 mutants are unviable due to their inability to export heme from the intestine to extraintestinal tissues. Heme supplementation restores viability of these mutants but fails to restore male reproductive deficits. Correspondingly, cell biological studies show that MRP5 regulates heme levels in the mammalian secretory pathway even though MRP5 knockout (KO) mice do not show reproductive phenotypes. The closest homolog of MRP5 is MRP9/ABCC12, which is absent in C. elegans, raising the possibility that MRP9 may genetically compensate for MRP5. Here, we show that MRP5 and MRP9 double KO (DKO) mice are viable but reveal significant male reproductive deficits. Although MRP9 is highly expressed in sperm, MRP9 KO mice show reproductive phenotypes only when MRP5 is absent. Both ABCC transporters localize to mitochondrial-associated membranes, dynamic scaffolds that associate the mitochondria and endoplasmic reticulum. Consequently, DKO mice reveal abnormal sperm mitochondria with reduced mitochondrial membrane potential and fertilization rates. Metabolomics show striking differences in metabolite profiles in the DKO testes, and RNA sequencing shows significant alterations in genes related to mitochondrial function and retinoic acid metabolism. Targeted functional metabolomics reveal lower retinoic acid levels in the DKO testes and higher levels of triglycerides in the mitochondria. These findings establish a model in which MRP5 and MRP9 play a concerted role in regulating male reproductive functions and mitochondrial sufficiency.
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Chen L, Yang Z, Cao Y, Hu Y, Bao W, Wu D, Hu L, Xie J, Yu H. Pan-cancer analysis and single-cell analysis revealed the role of ABCC5 transporter in hepatocellular carcinoma. Channels (Austin) 2021; 15:541-554. [PMID: 34494510 PMCID: PMC8437464 DOI: 10.1080/19336950.2021.1968592] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common subtype of liver cancer. Many patients with hepatocellular carcinoma are diagnosed at an advanced stage because the early symptoms are not obvious. For advanced hepatocellular carcinoma, immunotherapy and targeted therapy seem to be a promising direction. Finding a new prognostic marker for hepatocellular carcinoma and exploring its role in the immune microenvironment is of great value. ABCC transporters have previously been associated with drug resistance in hepatocellular tumors, but the exact mechanism remains unclear. Here, we conducted a study on ABCC5 in HCC and found that the expression of ABCC5 was up-regulated in HCC and was associated with poor prognosis. Further exploration revealed that ABCC5 was associated with immune infiltration of hepatocellular carcinoma. Single-cell analysis revealed a potential relationship between ABCC5 and immune cell differentiation. Therefore, it is significant to continue to explore the role of ABCC5 in hepatocellular carcinoma.
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Affiliation(s)
- Liang Chen
- Department of General Surgery, Fuyang Hospital Affiliated to Anhui Medical University, Fuyang, China
| | - Zhonghua Yang
- Department of General Surgery, Fuyang Hospital Affiliated to Anhui Medical University, Fuyang, China
| | - Yuan Cao
- Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yiming Hu
- College of Pharmacy, Jiangsu Ocean University, Lianyungang, China
| | - Wei Bao
- Urology Department, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dan Wu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Li Hu
- Department of Medicine, Kangda College of Nanjing Medical University, Lianyungang, China
| | - Jiaheng Xie
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hongzhu Yu
- Department of General Surgery, Fuyang Hospital Affiliated to Anhui Medical University, Fuyang, China
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Zolotarev KV, Mikhailov AN, Mikhailova MV, Nakhod KV, Nakhod VI, Bodoev NV, Zhdanov DD. Tissue-Specific Expression of Genes Involved in Cellular Transportation in Common Carp (Cyprinus carpio) Exposed to Cadmium. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:978-982. [PMID: 34021770 DOI: 10.1007/s00128-021-03270-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Juvenile common carp were treated with Cd2+ at a sublethal concentration for Cyprinidae (6.4 mg/L). The expression of N-methyl-D-aspartate receptor subunit genes (NR2A, NR2B) and ATP-binding cassette subfamily C member 1 gene (ABCC1) was compared between treated and untreated fish. In addition, cadmium accumulation in the fish tissues was assessed. NR2A was 18.9-fold upregulated by Cd2+ in the eyes (choroid + retina), which accumulated Cd, and was not upregulated in brain, which didn't accumulate Cd. This may have been caused by the blocking of calcium channels by Cd2+, which has a very similar ionic radius to that of Ca2+. ABCC1 was 2.6-fold upregulated in gills and was not upregulated in liver; both tissues accumulated high levels of Cd. This difference may have been caused by the accumulation of predominantly previously inactivated Cd in liver or by some difference in the mechanisms of self-detoxification from Cd2+ in fish gills and liver.
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Affiliation(s)
| | - Anton N Mikhailov
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow, 119121, Russia
| | - Marina V Mikhailova
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow, 119121, Russia
| | - Kirill V Nakhod
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow, 119121, Russia
| | - Valeriya I Nakhod
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow, 119121, Russia
| | - Nikolay V Bodoev
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow, 119121, Russia
| | - Dmitry D Zhdanov
- Institute of Biomedical Chemistry, 10 Pogodinskaya Street, Moscow, 119121, Russia
- Рeoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow, 117198, Russia
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8
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Qutub RM, Al-Ghafari AB, Al Doghaither HA, Omar UM, Ghulam JM. Increased expressions of cellular ATP-binding cassette transporters may be a promising diagnostic marker for colorectal cancer. Saudi Med J 2021; 41:834-840. [PMID: 32789424 PMCID: PMC7502964 DOI: 10.15537/smj.2020.8.25187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES To measure the blood expression levels of related drug-resistant ATP-binding cassette (ABC) transporters in colorectal cancer (CRC) patients and to assess these examined transporters for whether they present signi cant expression in connection with the tumor appearance of CRC. METHODS In this case-control study, the messenger ribonucleic acids were isolated from the blood of 62 CRC patients who were recruited from King Abdulaziz University Hospital Oncology Clinic and 46 controls from King Fahad General Hospital Blood Bank (Jeddah, Saudi Arabia) from September 2016 to March 2017. The Biomedical Ethics Unit at King Abdulaziz University, Jeddah, Saudi Arabia approved this study. The expressions of ABC transporters were measured using quantitative polymerase chain reaction. GraphPad Prism 5 and REST 2009 Software were used to correlate the expressions with clinicopathological independent stages and body mass index. A p-value of less than 0.05 was considered significant. RESULTS The results showed that the 3 ABC transporters, particularly ABCC1 (p less than 0.0001), were highly expressed in the blood of CRC patients compared with controls. However, none of the 3 transporters was related to the progression of CRC, age, gender, or body mass index. CONCLUSION The expressions of ABC transporters were found to be significantly higher in CRC patients, and they may act as diagnostic markers and should potentially be tested for their contribution to drug sensitivity in CRC patients.
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Affiliation(s)
- Renad M Qutub
- Biochemistry Department, Faculty of Science, King Fahad Medical Research Centre, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia. E-mail.
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Lu X, Long Y, Li X, Zhang L, Li Q, Wen H, Zhong S, Cui Z. Generation of Knockout and Transgenic Zebrafish to Characterize Abcc4 Functions in Detoxification and Efflux of Lead. Int J Mol Sci 2021; 22:ijms22042054. [PMID: 33669601 PMCID: PMC7923114 DOI: 10.3390/ijms22042054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/13/2021] [Accepted: 02/14/2021] [Indexed: 12/25/2022] Open
Abstract
Lead (Pb) is one of the major heavy metals that are toxic to vertebrates and usually considered as environmental pollutants. ABCC4/MRP4 is an organic anion transporter that mediates cellular efflux of a wide range of exogenous and endogenous compounds such as cyclic nucleotides and anti-cancer drugs; however, it remains unclear whether ABCC4 and its orthologs function in the detoxification and excretion of toxic lead. In this study, we found that the transcriptional and translational expression of zebrafish abcc4 was significantly induced under lead exposure in developing zebrafish embryos and adult tissues. Overexpression of zebrafish Abcc4 markedly decreased the cytotoxicity and accumulation of lead in pig renal proximal tubule cell line (LLC-PK1 cells). To further understand the functions of zebrafish Abcc4 in lead detoxification, the clustered regularly interspaced palindromic repeats (CRISPR)/Cas9 system was used to create an abcc4−/− mutant zebrafish line. In comparison with the wild-type (WT) zebrafish, the abcc4−/− mutants showed a higher death rate and lead accumulation upon exposure to lead. Furthermore, a stable abcc4-transgenic zebrafish line was successfully generated, which exerted stronger ability to detoxify and excrete lead than WT zebrafish. These findings indicate that zebrafish Abcc4 plays a crucial role in lead detoxification and cellular efflux and could be used as a potential biomarker to monitor lead contamination in a water environment.
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Affiliation(s)
- Xing Lu
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (X.L.); (H.W.)
- Department of Genetics, Wuhan University, Wuhan 430071, China; (X.L.); (L.Z.)
| | - Yong Long
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.L.); (Q.L.)
| | - Xixi Li
- Department of Genetics, Wuhan University, Wuhan 430071, China; (X.L.); (L.Z.)
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.L.); (Q.L.)
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Lang Zhang
- Department of Genetics, Wuhan University, Wuhan 430071, China; (X.L.); (L.Z.)
| | - Qing Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.L.); (Q.L.)
| | - Hua Wen
- Key Laboratory of Freshwater Biodiversity Conservation, Ministry of Agriculture and Rural Affairs, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; (X.L.); (H.W.)
| | - Shan Zhong
- Department of Genetics, Wuhan University, Wuhan 430071, China; (X.L.); (L.Z.)
- Hubei Provincial Key Laboratory of Allergy and Immunology, Wuhan 430071, China
- Correspondence: (S.Z.); (Z.C.); Tel.: +86-27-68759702 (S.Z.); +86-27-68780090 (Z.C.)
| | - Zongbin Cui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.L.); (Q.L.)
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
- Correspondence: (S.Z.); (Z.C.); Tel.: +86-27-68759702 (S.Z.); +86-27-68780090 (Z.C.)
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Cetin R, Quandt E, Kaulich M. Functional Genomics Approaches to Elucidate Vulnerabilities of Intrinsic and Acquired Chemotherapy Resistance. Cells 2021; 10:cells10020260. [PMID: 33525637 PMCID: PMC7912423 DOI: 10.3390/cells10020260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
Drug resistance is a commonly unavoidable consequence of cancer treatment that results in therapy failure and disease relapse. Intrinsic (pre-existing) or acquired resistance mechanisms can be drug-specific or be applicable to multiple drugs, resulting in multidrug resistance. The presence of drug resistance is, however, tightly coupled to changes in cellular homeostasis, which can lead to resistance-coupled vulnerabilities. Unbiased gene perturbations through RNAi and CRISPR technologies are invaluable tools to establish genotype-to-phenotype relationships at the genome scale. Moreover, their application to cancer cell lines can uncover new vulnerabilities that are associated with resistance mechanisms. Here, we discuss targeted and unbiased RNAi and CRISPR efforts in the discovery of drug resistance mechanisms by focusing on first-in-line chemotherapy and their enforced vulnerabilities, and we present a view forward on which measures should be taken to accelerate their clinical translation.
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Affiliation(s)
- Ronay Cetin
- Institute of Biochemistry II, Goethe University Frankfurt-Medical Faculty, University Hospital, 60590 Frankfurt am Main, Germany;
| | - Eva Quandt
- Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, 08195 Barcelona, Spain;
| | - Manuel Kaulich
- Institute of Biochemistry II, Goethe University Frankfurt-Medical Faculty, University Hospital, 60590 Frankfurt am Main, Germany;
- Frankfurt Cancer Institute, 60596 Frankfurt am Main, Germany
- Cardio-Pulmonary Institute, 60590 Frankfurt am Main, Germany
- Correspondence: ; Tel.: +49-(0)-69-6301-5450
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11
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Doğanlar O, Doğanlar ZB, Kurtdere AK, Chasan T, Ok ES. Chronic exposure of human glioblastoma tumors to low concentrations of a pesticide mixture induced multidrug resistance against chemotherapy agents. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110940. [PMID: 32800223 DOI: 10.1016/j.ecoenv.2020.110940] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/20/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
Recent evidence indicates that chronic, low-dose exposure to mixtures of pesticides can cause adverse responses in a variety of cells, tissues and organs, although interactions between pesticides circulating in the blood and cancer cells remain largely unexplored. The aim of this study was to investigate the potential of a mixture of four pesticides to induce multidrug resistance against the chemotherapeutic agents cisplatin, 5-fluorouracil and temozolomide in the human U87 glioblastoma cell line, and to explore the molecular mechanisms underlying this resistance. We found that the repeated administration of the pesticide mixture (containing the insecticides chlorpyrifos-ethyl and deltamethrin, the fungicide metiram, and the herbicide glyphosate) induced a strong drug resistance in U87 cells. The resistance was durable and transferred to subsequent cell generations. In addition, we detected a significant over-expression of the ATP-binding cassette (ABC) membrane transporters P-gp/ABCB1 and BRCP/ABCG2 as well as a glutathione-S-transferase (GST)/M1-type cellular detoxification function, known to have important roles in multidrug resistance, thus providing molecular support for the acquired multidrug resistance phenotype and shedding light on the mechanism of resistance. We further determined that there was lower mortality in the resistant brain tumor cells and that the mitochondrial apoptosis pathway was activated at a lower rate after chemotherapy compared to non-resistant control cells. In addition, multidrug-resistant cells were found to have both higher motility and wound-healing properties, suggesting a greater metastatic potential. Our results suggest that the investigation of P-gp, BRCP and GST/M1 multidrug resistance gene expression and/or protein levels in biopsy specimens of brain tumor patients who were at risk of pesticide exposure could be beneficial in determining chemotherapy dose and prolonging patient survival.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B
- ATP Binding Cassette Transporter, Subfamily B, Member 1
- ATP Binding Cassette Transporter, Subfamily G, Member 2
- ATP-Binding Cassette Transporters/genetics
- Antineoplastic Agents/pharmacology
- Cell Line, Tumor
- Cisplatin
- Drug Resistance, Multiple/drug effects
- Drug Resistance, Multiple/genetics
- Drug Resistance, Neoplasm/drug effects
- Drug Resistance, Neoplasm/genetics
- Glioblastoma/genetics
- Glioblastoma/pathology
- Humans
- Multidrug Resistance-Associated Proteins/genetics
- Multidrug Resistance-Associated Proteins/metabolism
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Neoplasm Proteins/pharmacology
- Pesticides/toxicity
- Toxicity Tests, Chronic
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Affiliation(s)
- Oğuzhan Doğanlar
- Department of Medical Biology, Faculty of Medicine, Trakya University, 22030 Edirne, Turkey.
| | - Zeynep Banu Doğanlar
- Department of Medical Biology, Faculty of Medicine, Trakya University, 22030 Edirne, Turkey
| | - Ayşe Kardelen Kurtdere
- Department of Medical Biology, Faculty of Medicine, Trakya University, 22030 Edirne, Turkey
| | - Tourkian Chasan
- Department of Medical Biology, Faculty of Medicine, Trakya University, 22030 Edirne, Turkey
| | - Esma Seben Ok
- Department of Medical Biology, Faculty of Medicine, Trakya University, 22030 Edirne, Turkey
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12
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Yang D, Huang WY, Li YQ, Chen SY, Su SY, Gao Y, Meng XL, Wang P. Acute and subchronic toxicity studies of rhein in immature and d-galactose-induced aged mice and its potential hepatotoxicity mechanisms. Drug Chem Toxicol 2020; 45:1119-1130. [DOI: 10.1080/01480545.2020.1809670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Dong Yang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Wan-Yi Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yan-Qiao Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Shi-Yu Chen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Si-Yu Su
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yue Gao
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Xian-Li Meng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Ping Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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Alonso-Trujillo M, Muñiz-González AB, Martínez-Guitarte JL. Endosulfan exposure alters transcription of genes involved in the detoxification and stress responses in Physella acuta. Sci Rep 2020; 10:7847. [PMID: 32398709 PMCID: PMC7217849 DOI: 10.1038/s41598-020-64554-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/20/2020] [Indexed: 12/11/2022] Open
Abstract
Endosulfan is a persistent pesticide that has been in use for more than five decades. During this time, it has contaminated soil, air, and water reservoirs worldwide. It is extremely toxic and harmful to beneficial non-target invertebrates, aquatic life, and even humans upon consumption, which is one of the many dangers of this pesticide since it biomagnifies in the food chain. The effects of three endosulfan concentrations (1, 10, and 100 µg/L) on the freshwater snail Physella acuta, an invasive cosmopolitan species, were examined over a week-long exposure period. Alterations in the expression of ten genes related to stress and xenobiotic detoxification were measured against the endogenous controls rpL10 and GAPDH by Real-Time polymerase chain reaction. Four genes are described here for the first time in this species, namely Hsp60, Grp78, GSTk1, and GSTm1. The rest of genes were Hsp90, sHsp16.6, cyp2u1, cyp3a7, cyp4f22, and MRP1. cyp2u1, sHsp16.6, and Grp78 expression were all altered by endosulfan. These results suggest a low pesticide concentration activates the acute response in P. acuta by affecting detoxification and stress responses and alter endoplasmic reticulum function and lipid metabolism. Furthermore, the newly identified genes extend the number of processes and cellular locations that can be analyzed in this organism.
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Affiliation(s)
- María Alonso-Trujillo
- Grupo de Biología y Toxicología Ambiental. Facultad de Ciencias. Universidad Nacional de Educación a Distancia, UNED. Senda del Rey 9, 28040, Madrid, Spain
| | - Ana-Belén Muñiz-González
- Grupo de Biología y Toxicología Ambiental. Facultad de Ciencias. Universidad Nacional de Educación a Distancia, UNED. Senda del Rey 9, 28040, Madrid, Spain
| | - José-Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental. Facultad de Ciencias. Universidad Nacional de Educación a Distancia, UNED. Senda del Rey 9, 28040, Madrid, Spain.
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Liu DM, Yang D, Zhou CY, Wu JS, Zhang GL, Wang P, Wang F, Meng XL. Aloe-emodin induces hepatotoxicity by the inhibition of multidrug resistance protein 2. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 68:153148. [PMID: 32028185 DOI: 10.1016/j.phymed.2019.153148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 12/05/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Aloe-emodin (AE) is among the primary bioactive anthraquinones present in traditional Chinese medicinal plants such as Rheum palmatum L. Multidrug resistance protein 2 (ABCC2/ MRP2) is an important efflux transporter of substances associated with cellular oxidative stress. However, the effects of traditional Chinese medicine on this protein remain unclear. PURPOSE The aim of this research is to study the role of ABCC2 in AE-induced hepatotoxicity. METHODS The expression of ABCC2 protein and mRNA levels were analyzed by Western-Blotting and qRT-PCR, respectively. The intracellular oxidative stress caused by AE was evaluated by quantifying the levels of intracellular reactive oxygen species, malondialdehyde, glutathione reduced and oxidized glutathione. The levels of adenosine triphosphate, mitochondrial membrane potential and mitochondrial DNA were explored to evaluate the effects of AE on mitochondrial function. The effects of AE on cell apoptosis and cell cycle were detected by flow cytometry. To further clarify the key role of ABCC2 in AE induced cytotoxicity, we used pCI-neo-ABCC2 plasmid to over express ABCC2 protein, and small interfering RNA was used to knockdown ABCC2 in HepG2 cells. Additionally, we investigated the impact of AE on ABCC2 degradation pathway and the hepatotoxic effects of AE in mice. RESULTS AE was found to inhibit ABCC2 transport activity, downregulate ABCC2 expression and altered intracellular redox balance. Induction of oxidative stress resulted in depletion of intracellular glutathione reduced, mitochondria dysfunction and activation of apoptosis. ABCC2 overexpression significantly reduced AE-induced intracellular oxidative stress and cell death, which was enhanced by ABCC2 knockdown. Furthermore, AE was observed to promote ABCC2 degradation through induction of autophagy and hepatotoxicity was induced in mice by promoting ABCC2 degradation. CONCLUSIONS The inhibition of ABCC2 is a novel effect of AE that triggers oxidative stress and apoptosis. These findings are helpful in understanding the toxicological effects of AE-containing medicinal plants.
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Affiliation(s)
- De-Ming Liu
- College Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610037, China; Department of Dermatology, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400011, China
| | - Dong Yang
- College Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610037, China
| | - Chun-Yan Zhou
- Department of Dermatology, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400011, China
| | - Jia-Si Wu
- College Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610037, China
| | - Guo-Lin Zhang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Ping Wang
- College Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610037, China
| | - Fei Wang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Xian-Li Meng
- College Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610037, China.
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15
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Gomez-Zepeda D, Taghi M, Scherrmann JM, Decleves X, Menet MC. ABC Transporters at the Blood-Brain Interfaces, Their Study Models, and Drug Delivery Implications in Gliomas. Pharmaceutics 2019; 12:pharmaceutics12010020. [PMID: 31878061 PMCID: PMC7022905 DOI: 10.3390/pharmaceutics12010020] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 12/22/2022] Open
Abstract
Drug delivery into the brain is regulated by the blood-brain interfaces. The blood-brain barrier (BBB), the blood-cerebrospinal fluid barrier (BCSFB), and the blood-arachnoid barrier (BAB) regulate the exchange of substances between the blood and brain parenchyma. These selective barriers present a high impermeability to most substances, with the selective transport of nutrients and transporters preventing the entry and accumulation of possibly toxic molecules, comprising many therapeutic drugs. Transporters of the ATP-binding cassette (ABC) superfamily have an important role in drug delivery, because they extrude a broad molecular diversity of xenobiotics, including several anticancer drugs, preventing their entry into the brain. Gliomas are the most common primary tumors diagnosed in adults, which are often characterized by a poor prognosis, notably in the case of high-grade gliomas. Therapeutic treatments frequently fail due to the difficulty of delivering drugs through the brain barriers, adding to diverse mechanisms developed by the cancer, including the overexpression or expression de novo of ABC transporters in tumoral cells and/or in the endothelial cells forming the blood-brain tumor barrier (BBTB). Many models have been developed to study the phenotype, molecular characteristics, and function of the blood-brain interfaces as well as to evaluate drug permeability into the brain. These include in vitro, in vivo, and in silico models, which together can help us to better understand their implication in drug resistance and to develop new therapeutics or delivery strategies to improve the treatment of pathologies of the central nervous system (CNS). In this review, we present the principal characteristics of the blood-brain interfaces; then, we focus on the ABC transporters present on them and their implication in drug delivery; next, we present some of the most important models used for the study of drug transport; finally, we summarize the implication of ABC transporters in glioma and the BBTB in drug resistance and the strategies to improve the delivery of CNS anticancer drugs.
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Affiliation(s)
- David Gomez-Zepeda
- Inserm, UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, 75006 Paris, France; (M.T.); (J.-M.S.); (X.D.)
- Sorbonne Paris Cité, Université Paris Descartes, 75006 Paris, France
- Sorbonne Paris Cité, Université Paris Diderot, 75013 Paris, France
- Correspondence: (D.G.-Z.); (M.-C.M.)
| | - Méryam Taghi
- Inserm, UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, 75006 Paris, France; (M.T.); (J.-M.S.); (X.D.)
- Sorbonne Paris Cité, Université Paris Descartes, 75006 Paris, France
- Sorbonne Paris Cité, Université Paris Diderot, 75013 Paris, France
| | - Jean-Michel Scherrmann
- Inserm, UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, 75006 Paris, France; (M.T.); (J.-M.S.); (X.D.)
- Sorbonne Paris Cité, Université Paris Descartes, 75006 Paris, France
- Sorbonne Paris Cité, Université Paris Diderot, 75013 Paris, France
| | - Xavier Decleves
- Inserm, UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, 75006 Paris, France; (M.T.); (J.-M.S.); (X.D.)
- Sorbonne Paris Cité, Université Paris Descartes, 75006 Paris, France
- Sorbonne Paris Cité, Université Paris Diderot, 75013 Paris, France
- UF Biologie du médicament et toxicologie, Hôpital Cochin, AP HP, 75006 Paris, France
| | - Marie-Claude Menet
- Inserm, UMR-S 1144, Optimisation Thérapeutique en Neuropsychopharmacologie, 75006 Paris, France; (M.T.); (J.-M.S.); (X.D.)
- Sorbonne Paris Cité, Université Paris Descartes, 75006 Paris, France
- Sorbonne Paris Cité, Université Paris Diderot, 75013 Paris, France
- UF Hormonologie adulte, Hôpital Cochin, AP HP, 75006 Paris, France
- Correspondence: (D.G.-Z.); (M.-C.M.)
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16
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Galdiero E, Carotenuto R, Siciliano A, Libralato G, Race M, Lofrano G, Fabbricino M, Guida M. Cerium and erbium effects on Daphnia magna generations: A multiple endpoints approach. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 254:112985. [PMID: 31394345 DOI: 10.1016/j.envpol.2019.112985] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/10/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Cerium (Ce, CeCl3) and Erbium (Er, ErCl3) are increasingly used in many electronic devices facilitating the alteration of their biogeochemical cycles (e.g. e-waste). Previous surveys stated that their environmental concentrations due to natural or anthropogenic events can reach up to 161 μg/L in ore mine effluent for Ce with a mean water concentration of 0.79 μg/L, and 11.9 μg/L for Er in ore mine effluents with a mean water concentration of 0.004 μg/L. Their potential effects onto aquatic organisms are still relatively unexplored. In this study, long-term multigenerational effects on Daphnia magna were assessed using various exposure times (3, 7, 14, and 21 days) in three generations (F0, F1 and F2). Each generation was exposed to environmental concentrations of Ce and Er (0.54 and 0.43 μg/L, respectively - mean values) and effects included organisms' size, parental reproduction, and survival, determination of reactive oxygen species (ROS), enzymatic activity (superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST)), gene expression of ATP-binding cassette (ABC) transporter, and uptake. Results evidenced that chronic multi-generational exposure of daphnids to Ce and Er reduced survival, growth and reproduction, decreasing ROS, SOD and CAT from F0 to F2. Ce reduced the number of generated offsprings after each generation, while Er delayed the time of offsprings emergence, but not their number. ROS, SOD, CAT and GST evidenced that Er is slightly more toxic than Ce. Up- and downregulation of genes was limited, but Ce and Er activated the ABC transporters. Uptake of Ce and Er decreased through exposure time and generations.
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Affiliation(s)
- E Galdiero
- Department of Biology, University of Naples Federico II, via Cinthia, 80126 Naples, Italy.
| | - R Carotenuto
- Department of Biology, University of Naples Federico II, via Cinthia, 80126 Naples, Italy.
| | - A Siciliano
- Department of Biology, University of Naples Federico II, via Cinthia, 80126 Naples, Italy.
| | - G Libralato
- Department of Biology, University of Naples Federico II, via Cinthia, 80126 Naples, Italy.
| | - M Race
- Department of Civil and Mechanical Engineering, Università di Cassino e del Lazio Meridionale, Cassino, Italy.
| | - G Lofrano
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), University of Naples Federico II, via Cinthia, 80126 Naples, Italy; Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - M Fabbricino
- University of Naples Federico II, Department of Civil, Architectural and Environmental Engineering, Via Claudio 21, 80125 Napoli, Italy.
| | - M Guida
- Department of Biology, University of Naples Federico II, via Cinthia, 80126 Naples, Italy.
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Tinker A, Aziz Q, Li Y, Specterman M. ATP‐Sensitive Potassium Channels and Their Physiological and Pathophysiological Roles. Compr Physiol 2018; 8:1463-1511. [DOI: 10.1002/cphy.c170048] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Xi Y, Ma Z, Zhang H, Yuan M, Wang L. Effects of Clostridium difficile toxin A on K562/A02 cell proliferation, apoptosis and multi-drug resistance. Oncol Lett 2018; 15:4215-4220. [PMID: 29545897 PMCID: PMC5841023 DOI: 10.3892/ol.2018.7921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/24/2018] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study was to investigate the cytotoxic effect and multi-drug resistance (MDR) of Clostridium difficile toxin A (TcdA) on K562/A02 cells, and understand its underlying molecular pathways. K562/A02 cells were treated with TcdA at different concentrations for 24, 48 and 72 h, and the inhibition effect and drug resistance of TcdA on K562/A02 cell proliferation was assessed by methyl thiazolyl tetrazolium colorimetric assay. Furthermore, cell cycle-apoptosis was analyzed by flow cytometry, P-glycoprotein (P-gp) expression was determined by western blot analysis and caspase-3 activity was measured using a caspase-3 activity kit. TcdA inhibited K562/A02 cell proliferation in a time- and dose-dependent manner. The inhibition rate of K562/A02 cells reached 8.76±0.76, 28.55±0.43, 47.89±0.27, 58.08±0.06 and 57.70±0.79% following treatment with 50, 100, 200, 400 and 800 ng/ml TcdA, respectively, for 24 h. K562/A02 cells in the G0/G1 phase increased and cells in the S phase decreased following treatment with TcdA (P<0.05), and the apoptotic rates in the 200 and 400 ng/ml concentration groups were 14.05 and 22.89%, respectively. In addition, TcdA (50 ng/ml) significantly inhibited the proliferation of K562/A02 cells and reduced the half maximal inhibitory concentration of these drugs in combination with chemotherapy drugs. The reversal folds were 3.09, 2.89 and 2.79, respectively. Furthermore, TcdA treatment was associated with the upregulation of P-gp in K562/A02 cells, and caspase-3 activity was observed to increase in K562/A02 cells following TcdA treatment, when compared with untreated controls (P<0.05). These findings suggested that TcdA may be able to inhibit K562/A02 cell growth, induce cell apoptosis by decreasing P-gp levels and caspase-3 activation, and partially reverse MDR. Further studies are required to evaluate the potential of TcdA as a candidate for the chemotherapy of hematologic malignancies.
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Affiliation(s)
- Yaming Xi
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhuanzhen Ma
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Hao Zhang
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Maowen Yuan
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Lina Wang
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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19
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Nakagawa H, Toyoda Y, Albrecht T, Tsukamoto M, Praetorius M, Ishikawa T, Kamiya K, Kusunoki T, Ikeda K, Sertel S. Are human ATP-binding cassette transporter C11 and earwax associated with the incidence of cholesteatoma? Med Hypotheses 2018; 114:19-22. [PMID: 29602456 DOI: 10.1016/j.mehy.2018.02.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/18/2017] [Accepted: 02/23/2018] [Indexed: 01/17/2023]
Abstract
Cholesteatoma is an ear disease based on a locally destructive noncancerous conglomerate of epidermis and keratin debris. Abnormal growth of stratified keratinized squamous epithelium in the temporal bone causes destruction of the outer and middle ear, potentially leading to hearing impairment, facial palsy, vertigo, lateral sinus thrombosis, and intracranial complications. Although cholesteatoma is effectively treated by surgical resection (mastoidectomy), the lack of effective and nonsurgical therapies potentially results in fatal consequences, establishing the need for a comprehensive investigation of cholesteatoma pathogenesis. Although its etiology is still being debated, interestingly, we found that the trend associated with the 538G allele frequency of the adenosine triphosphate-binding cassette transporter C11 (ABCC11) gene, the determinant of wet-type earwax, and ethnic groups was similar to that between the incidence of cholesteatoma and ethnic groups (countries). The incidences of cholesteatoma in Europe (Denmark, Finland, and Scotland) are higher than in East Asia (Japan), and the frequencies of the ABCC11 538G allele in African, American, and European (Finland and Scotland) populations are higher than those in East Asian populations (Japan). Additionally, a single-nucleotide polymorphism in the ABCC11 gene (rs17822931, 538G > A; Gly180Arg) is closely related to earwax morphotypes. While earwax is often beneficial to ear health, it is sometimes harmful in cases where it causes hearing impairment. Based on independent findings of associations between ABCC11 and the physiological environment of the auditory canal, we hypothesize a possible link between ABCC11, earwax, and the incidence of cholesteatoma.
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Affiliation(s)
- Hiroshi Nakagawa
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan; Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
| | - Yu Toyoda
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tobias Albrecht
- Department of Otorhinolaryngology, Head & Neck Surgery, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - Megumi Tsukamoto
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
| | - Mark Praetorius
- Department of Otorhinolaryngology, Head & Neck Surgery, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | | | - Kazusaku Kamiya
- Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Takeshi Kusunoki
- Department of Otorhinolaryngology, Juntendo University of Medicine, Shizuoka Hospital, 1129 Nagaoka Izunokuni-shi, Shizuoka 410-2295, Japan
| | - Katsuhisa Ikeda
- Department of Otorhinolaryngology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Serkan Sertel
- Department of Otorhinolaryngology, Head & Neck Surgery, University of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany; HNO Praxis Prof. Sertel, Rottstraße 39, 67061 Ludwigshafen am Rhein, Germany.
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Abstract
Humans swallow a great variety and often large amounts of chemicals as nutrients, incidental food additives and contaminants, drugs, and inhaled particles and chemicals, thus exposing the gastrointestinal tract to many potentially toxic substances. It serves as a barrier in many cases to protect other components of the body from such substances and infections. Fortunately, the gastrointestinal tract is remarkably robust and generally is able to withstand multiple daily assaults by the chemicals to which it is exposed. Some chemicals, however, can affect one or more aspects of the gastrointestinal tract to produce abnormal events that reflect toxicity. It is the purpose of this chapter to evaluate the mechanisms by which toxic chemicals produce their deleterious effects and to determine the consequences of the toxicity on integrity of gastrointestinal structure and function. Probably because of the intrinsic ability of the gastrointestinal tract to resist toxic chemicals, there is a paucity of data regarding gastrointestinal toxicology. It is therefore necessary in many cases to extrapolate toxic mechanisms from infectious processes, inflammatory conditions, ischemia, and other insults in addition to more conventional chemical sources of toxicity.
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Spontaneous Production of Glutathione-Conjugated Forms of 1,2-Dichloropropane: Comparative Study on Metabolic Activation Processes of Dihaloalkanes Associated with Occupational Cholangiocarcinoma. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9736836. [PMID: 28555163 PMCID: PMC5438856 DOI: 10.1155/2017/9736836] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/17/2017] [Accepted: 03/20/2017] [Indexed: 12/18/2022]
Abstract
Recently, epidemiological studies revealed a positive relationship between an outbreak of occupational cholangiocarcinoma and exposure to organic solvents containing 1,2-dichloropropane (1,2-DCP). In 1,2-DCP-administered animal models, we previously found biliary excretion of potentially oncogenic metabolites consisting of glutathione- (GSH-) conjugated forms of 1,2-DCP (GS-DCPs); however, the GS-DCP production pathway remains unknown. To enhance the understanding of 1,2-DCP-related risks to human health, we examined the reactivity of GSH with 1,2-DCP in vitro and compared it to that with dichloromethane (DCM), the other putative substance responsible for occupational cholangiocarcinoma. Our results showed that 1,2-DCP was spontaneously conjugated with GSH, whereas this spontaneous reaction was hardly detected between DCM and GSH. Further analysis revealed that glutathione S-transferase theta 1 (GSTT1) exhibited less effect on the 1,2-DCP reaction as compared with that observed for DCM. Although GSTT1-mediated bioactivation of dihaloalkanes could be a plausible explanation for the production of reactive metabolites related to carcinogenesis based on previous studies, this catalytic pathway might not mainly contribute to 1,2-DCP-related occupational cholangiocarcinoma. Considering the higher catalytic activity of GSTT1 on DCM as compared with that on 1,2-DCP, our findings suggested differences in the activation processes associated with 1,2-DCP and DCM metabolism.
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De novo transcriptome analysis of the excretory tubules of Carausius morosus (Phasmatodea) and possible functions of the midgut 'appendices'. PLoS One 2017; 12:e0174984. [PMID: 28384348 PMCID: PMC5383107 DOI: 10.1371/journal.pone.0174984] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 03/18/2017] [Indexed: 01/10/2023] Open
Abstract
The Malpighian tubules are the insect excretory organs, responsible for ion and water homeostasis and elimination of nitrogenous wastes. Post-genomic assays suggest they also metabolize and detoxify xenobiotic compounds and have antimicrobial properties. The Phasmatodea have an additional, unique set of excretory organs referred to predominantly as midgut appendices. Their function and how it compares to phasmid and other insect Malpighian tubules is unknown. Hypotheses include carbonic anhydrase activity, calcium and metal cation sequestration, and xenobiotic transport. This work presents the first comparative transcriptomic analysis of the Phasmatodean excretory organs, using the model insect Carausius morosus. I produced de novo transcriptomes of the midgut appendices, midgut wall, and Malpighian tubules, and looked for differentially expressed genes associated with putative organ functions. The appendices differentially and highly express lipid transport and metabolism proteins, and the biomineralization gene otopetrin. The Malpighian tubules differentially and highly express acid phosphatases and multiple transporter types, while appendices express fat-soluble vitamin and peptide transporters. Many defense proteins such as multidrug resistance proteins, ABC transporters, cytochrome P450's, and glutathione-S-transferases were differentially expressed in specific excretory organs. I hypothesize that the appendices and Malpighian tubules both have defensive / xenobiotic metabolism functions, but each likely target different substrates. Phasmid Malpighian tubules excrete as in other insects, while the appendices may predominantly regulate amino acids, fats, and fat-soluble compounds. Lipid metabolism in insects is poorly understood, and the Phasmatodea may thus serve as a model for studying this further.
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Tenofovir Disoproxil Fumarate Is a New Substrate of ATP-Binding Cassette Subfamily C Member 11. Antimicrob Agents Chemother 2017; 61:AAC.01725-16. [PMID: 28167562 DOI: 10.1128/aac.01725-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 01/27/2017] [Indexed: 01/03/2023] Open
Abstract
Tenofovir disoproxil fumarate (TDF), a nucleotide reverse transcriptase inhibitor, after conversion to tenofovir (TFV), is mainly eliminated by glomerular filtration and active tubular secretion. The major adverse effect of tenofovir is nephrotoxicity; however, the exact mechanism remains poorly understood. In this study, the ATP-binding cassette subfamily C member 11 (ABCC11; multidrug resistance protein 8 [MRP8]) transporter, which is abundant in proximal tubular cells, was demonstrated to act as an efflux transporter of tenofovir. Real-time PCR (RT-PCR) and indirect immunofluorescence assays were used to determine MRP8 overexpression in a continuous cell line. Tenofovir accumulations were assessed by cytotoxicity, cellular transport, and vesicular uptake assays. Substrate specificity was confirmed using MK-571, an MRP-specific inhibitor, and methotrexate, which served as a known substrate. Intracellular and intravesicular concentrations of tenofovir were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The 50% cytotoxic concentration (CC50) of TDF in MRP8-overexpressing cells was 4.78 times higher than that of parental cells. Transport assays also showed that the intracellular accumulation of tenofovir in MRP8-overexpressing cells was 55 times lower than that in parental cells and was partly reversed by MK-571. Similarly, an "inside-out" vesicular uptake assay, using Sf9 inverted membrane vesicles to allow measuring of accumulation of the substrates into the vesicles, demonstrated a higher intravesicular concentration of tenofovir in MRP8-overexpressing vesicles than in Sf9 insect control vesicles. These effects were effectively reversed by increasing concentrations of the specific inhibitor MK-571. In conclusion, tenofovir is a new substrate of the MRP8 transporter. An alteration in the activity of this efflux pump may increase the intracellular accumulation of tenofovir in proximal renal tubular cells.
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Yonemura Y, Endo Y, Canbay E, Liu Y, Ishibashi H, Mizumoto A, Hirano M, Imazato Y, Takao N, Ichinose M, Noguchi K, Li Y, Wakama S, Yamada K, Hatano K, Shintani H, Yoshitake H, Ogura SI. Photodynamic Detection of Peritoneal Metastases Using 5-Aminolevulinic Acid (ALA). Cancers (Basel) 2017; 9:cancers9030023. [PMID: 28257041 PMCID: PMC5366818 DOI: 10.3390/cancers9030023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 02/08/2017] [Accepted: 02/16/2017] [Indexed: 12/14/2022] Open
Abstract
In the past, peritoneal metastasis (PM) was considered as a terminal stage of cancer. From the early 1990s, however, a new comprehensive treatment consisting of cytoreductive surgery and perioperative chemotherapy has been established to improve long-term survival for selected patients with PM. Among prognostic indicators after the treatment, completeness of cytoreduction is the most independent predictors of survival. However, peritoneal recurrence is a main cause of recurrence, even after complete cytoreduction. As a cause of peritoneal recurrence, small PM may be overlooked at the time of cytoreductive surgery (CRS), therefore, development of a new method to detect small PM is desired. Recently, photodynamic diagnosis (PDD) was developed for detection of PM. The objectives of this review were to evaluate whether PDD using 5-aminolevulinic acid (ALA) could improve detection of small PM.
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Affiliation(s)
- Yutaka Yonemura
- NPO Organization to support Peritoneal Surface Malignancy Treatment, 510 Fukushima-Cho, Shimogyou-Ku, Kyoto 600-8189, Japan.
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Yoshio Endo
- Central Research Resource Center, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Emel Canbay
- NPO HIPEC Istanbul, Guzelbahce Sokak No:15 Nisantasi, Istanbul 34367, Turkey.
| | - Yang Liu
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
| | - Haruaki Ishibashi
- NPO Organization to support Peritoneal Surface Malignancy Treatment, 510 Fukushima-Cho, Shimogyou-Ku, Kyoto 600-8189, Japan
| | - Akiyoshi Mizumoto
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Masamitu Hirano
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Yuuki Imazato
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Nobuyuki Takao
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Masumi Ichinose
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Kousuke Noguchi
- Department of General Surgery, Kusatsu General Hospital, 1660 Yabase, Kusatsu City, Shiga 525-8585, Japan.
| | - Yan Li
- Department of Peritoneal Surface Oncology, Beijing Shijitan Hospital of Capital Medical University, Beijing 100038, China.
| | - Satoshi Wakama
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
| | - Kazuhiro Yamada
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
| | - Koutarou Hatano
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
| | - Hiroshi Shintani
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
| | - Hiroyuki Yoshitake
- Peritoneal Surface Malignancy Center, Kishiwada Tokushukai Hospital, 4-27-1 Kamori-Cho, Kishiwada City, Osaka 596-8522, Japan.
| | - Shun-Ichiro Ogura
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259 Nagatsu-Cho, Midori-ku, Yokohama 226-8501, Japan.
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Toyoda Y, Takada T, Gomi T, Nakagawa H, Ishikawa T, Suzuki H. Clinical and Molecular Evidence of ABCC11 Protein Expression in Axillary Apocrine Glands of Patients with Axillary Osmidrosis. Int J Mol Sci 2017; 18:ijms18020417. [PMID: 28212277 PMCID: PMC5343951 DOI: 10.3390/ijms18020417] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 01/18/2017] [Accepted: 02/13/2017] [Indexed: 01/15/2023] Open
Abstract
Accumulating evidence suggests that the risk of axillary osmidrosis is governed by a non-synonymous single nucleotide polymorphism (SNP) 538G>A in human ATP-binding cassette C11 (ABCC11) gene. However, little data are available for the expression of ABCC11 protein in human axillary apocrine glands that produce apocrine sweat—a source of odor from the armpits. To determine the effect of the non-synonymous SNP ABCC11 538G>A (G180R) on the ABCC11 in vivo, we generated transiently ABCC11-expressing transgenic mice with adenovirus vector, and examined the protein levels of each ABCC11 in the mice with immunoblotting using an anti-ABCC11 antibody we have generated in the present study. Furthermore, we examined the expression of ABCC11 protein in human axillary apocrine glands extracted from axillary osmidrosis patients carrying each ABCC11 genotype: 538GG, GA, and AA. Analyses of transiently ABCC11-expressing transgenic mice showed that ABCC11 538G>A diminishes the ABCC11 protein levels in vivo. Consistently, ABCC11 protein was detected in the human axillary apocrine glands of the 538GG homozygote or 538GA heterozygote, not in the 538AA homozygote. These findings would contribute to a better understanding of the molecular basis of axillary osmidrosis.
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Affiliation(s)
- Yu Toyoda
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
| | - Tappei Takada
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
| | - Tsuneaki Gomi
- Gomi Clinic, 1-10-12, Hyakunin-cho, Shinjyuku-ku, Tokyo 169-0073, Japan.
| | - Hiroshi Nakagawa
- Department of Applied Biological Chemistry, Graduate School of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan.
| | - Toshihisa Ishikawa
- RIKEN Center for Life Science Technology, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.
| | - Hiroshi Suzuki
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
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Miyata H, Takada T, Toyoda Y, Matsuo H, Ichida K, Suzuki H. Identification of Febuxostat as a New Strong ABCG2 Inhibitor: Potential Applications and Risks in Clinical Situations. Front Pharmacol 2016; 7:518. [PMID: 28082903 PMCID: PMC5187494 DOI: 10.3389/fphar.2016.00518] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 12/14/2016] [Indexed: 01/01/2023] Open
Abstract
ATP-binding cassette transporter G2 (ABCG2) is a plasma membrane protein that regulates the pharmacokinetics of a variety of drugs and serum uric acid (SUA) levels in humans. Despite the pharmacological and physiological importance of this transporter, there is no clinically available drug that modulates ABCG2 function. Therefore, to identify such drugs, we investigated the effect of drugs that affect SUA levels on ABCG2 function. This strategy was based on the hypothesis that the changes of SUA levels might caused by interaction with ABCG2 since it is a physiologically important urate transporter. The results of the in vitro screening showed that 10 of 25 drugs investigated strongly inhibited the urate transport activity of ABCG2. Moreover, febuxostat was revealed to be the most promising candidate of all the potential ABCG2 inhibitors based on its potent inhibition at clinical concentrations; the half-maximal inhibitory concentration of febuxostat was lower than its maximum plasma unbound concentrations reported. Indeed, our in vivo study demonstrated that orally administered febuxostat inhibited the intestinal Abcg2 and, thereby, increased the intestinal absorption of an ABCG2 substrate sulfasalazine in wild-type mice, but not in Abcg2 knockout mice. These results suggest that febuxostat might inhibit human ABCG2 at a clinical dose. Furthermore, the results of this study lead to a proposed new application of febuxostat for enhancing the bioavailability of ABCG2 substrate drugs, named febuxostat-boosted therapy, and also imply the potential risk of adverse effects by drug-drug interactions that could occur between febuxostat and ABCG2 substrate drugs.
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Affiliation(s)
- Hiroshi Miyata
- Department of Pharmacy, The University of Tokyo Hospital, Faculty of Medicine, The University of Tokyo Tokyo, Japan
| | - Tappei Takada
- Department of Pharmacy, The University of Tokyo Hospital, Faculty of Medicine, The University of Tokyo Tokyo, Japan
| | - Yu Toyoda
- Department of Pharmacy, The University of Tokyo Hospital, Faculty of Medicine, The University of Tokyo Tokyo, Japan
| | - Hirotaka Matsuo
- Department of Integrative Physiology and Bio-Nano Medicine, National Defense Medical College Tokorozawa, Japan
| | - Kimiyoshi Ichida
- Department of Pathophysiology, Tokyo University of Pharmacy and Life Sciences Tokyo, Japan
| | - Hiroshi Suzuki
- Department of Pharmacy, The University of Tokyo Hospital, Faculty of Medicine, The University of Tokyo Tokyo, Japan
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Toyoda Y, Takada T, Miyata H, Ishikawa T, Suzuki H. Regulation of the Axillary Osmidrosis-Associated ABCC11 Protein Stability by N-Linked Glycosylation: Effect of Glucose Condition. PLoS One 2016; 11:e0157172. [PMID: 27281343 PMCID: PMC4900533 DOI: 10.1371/journal.pone.0157172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 05/25/2016] [Indexed: 01/09/2023] Open
Abstract
ATP-binding cassette C11 (ABCC11) is a plasma membrane protein involved in the transport of a variety of lipophilic anions. ABCC11 wild-type is responsible for the high-secretion phenotypes in human apocrine glands, such as that of wet-type ear wax, and the risk of axillary osmidrosis. We have previously reported that mature ABCC11 is a glycoprotein containing two N-linked glycans at Asn838 and Asn844. However, little is known about the role of N-linked glycosylation in the regulation of ABCC11 protein. In the current study, we investigated the effects of N-linked glycosylation on the protein level and localization of ABCC11 using polarized Madin-Darby canine kidney II cells. When the N-linked glycosylation in ABCC11-expressing cells was chemically inhibited by tunicamycin treatment, the maturation of ABCC11 was suppressed and its protein level was significantly decreased. Immunoblotting analyses demonstrated that the protein level of the N-linked glycosylation-deficient mutant (N838Q and N844Q: Q838/844) was about half of the ABCC11 wild-type level. Further biochemical studies with the Q838/844 mutant showed that this glycosylation-deficient ABCC11 was degraded faster than wild-type probably due to the enhancement of the MG132-sensitive protein degradation pathway. Moreover, the incubation of ABCC11 wild-type-expressing cells in a low-glucose condition decreased mature, glycosylated ABCC11, compared with the high-glucose condition. On the other hand, the protein level of the Q838/844 mutant was not affected by glucose condition. These results suggest that N-linked glycosylation is important for the protein stability of ABCC11, and physiological alteration in glucose may affect the ABCC11 protein level and ABCC11-related phenotypes in humans, such as axillary osmidrosis.
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Affiliation(s)
- Yu Toyoda
- Department of Pharmacy, The University of Tokyo Hospital, Tokyo, Japan
- * E-mail:
| | - Tappei Takada
- Department of Pharmacy, The University of Tokyo Hospital, Tokyo, Japan
| | - Hiroshi Miyata
- Department of Pharmacy, The University of Tokyo Hospital, Tokyo, Japan
| | | | - Hiroshi Suzuki
- Department of Pharmacy, The University of Tokyo Hospital, Tokyo, Japan
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Toyoda Y, Takada T, Suzuki H. Halogenated hydrocarbon solvent-related cholangiocarcinoma risk: biliary excretion of glutathione conjugates of 1,2-dichloropropane evidenced by untargeted metabolomics analysis. Sci Rep 2016; 6:24586. [PMID: 27087417 PMCID: PMC5263858 DOI: 10.1038/srep24586] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/30/2016] [Indexed: 12/15/2022] Open
Abstract
Recently, the International Agency for Research on Cancer issued a warning about the carcinogenicity of 1,2-dichloropropane (1,2-DCP) to humans based on an epidemiological study suggesting a relationship between the incidence of cholangiocarcinoma and occupational exposure to halogenated hydrocarbon solvent comprised mostly of 1,2-DCP. Although this dihaloalkane has been used in various industrial fields, there has been no biological evidence explaining the cholangiocarcinoma latency, as well as little understanding of general cholangiocarcinoma risk. In the present study, we explored the biliary excretion of 1,2-DCP metabolites by an untargeted metabolomics approach and the related molecular mechanism with in vitro and in vivo experiments. We hypothesized that the biliary excretion of carcinogens derived from 1,2-DCP contribute to the increased cholangiocarcinoma risk. We found that 1,2-DCP was conjugated with glutathione in the liver, and that the glutathione-conjugated forms of 1,2-DCP, including a potential carcinogen that contains a chloride atom, were excreted into bile by the bile canalicular membrane transporter, ABCC2. These results may reflect a risk in the backfiring of biliary excretion as a connatural detoxification systems for xenobiotics. Our findings would contribute to uncover the latent mechanism by which the chronic exposure to 1,2-DCP increases cholangiocarcinoma risk and future understanding of cholangiocarcinoma biology.
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Affiliation(s)
- Yu Toyoda
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tappei Takada
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Hiroshi Suzuki
- Department of Pharmacy, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
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Zhang G, Zhu J, Zhou Y, Wei Y, Xi L, Qin H, Rao Z, Han M, Ma Y, Wu X. Hesperidin Alleviates Oxidative Stress and Upregulates the Multidrug Resistance Protein 2 in Isoniazid and Rifampicin-Induced Liver Injury in Rats. J Biochem Mol Toxicol 2016; 30:342-9. [PMID: 27017938 DOI: 10.1002/jbt.21799] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/03/2016] [Accepted: 02/17/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Guoqiang Zhang
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Junfang Zhu
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
- Department of Core laboratory; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Yan Zhou
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Yuhui Wei
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Lili Xi
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Hongyan Qin
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Zhi Rao
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Miao Han
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
- College of Pharmaceutical Science; Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Yanrong Ma
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Xin'an Wu
- Department of Pharmacy; The First Hospital of Lanzhou University; Lanzhou 730000 People's Republic of China
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Diagnosis of Human Axillary Osmidrosis by Genotyping of the Human ABCC11 Gene: Clinical Practice and Basic Scientific Evidence. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7670483. [PMID: 27057547 PMCID: PMC4781944 DOI: 10.1155/2016/7670483] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 01/25/2016] [Accepted: 01/28/2016] [Indexed: 01/09/2023]
Abstract
The importance of personalized medicine and healthcare is becoming increasingly recognized. Genetic polymorphisms associated with potential risks of various human genetic diseases as well as drug-induced adverse reactions have recently been well studied, and their underlying molecular mechanisms are being uncovered by functional genomics as well as genome-wide association studies. Knowledge of certain genetic polymorphisms is clinically important for our understanding of interindividual differences in drug response and/or disease risk. As such evidence accumulates, new clinical applications and practices are needed. In this context, the development of new technologies for simple, fast, accurate, and cost-effective genotyping is imperative. Here, we describe a simple isothermal genotyping method capable of detecting single nucleotide polymorphisms (SNPs) in the human ATP-binding cassette (ABC) transporter ABCC11 gene and its application to the clinical diagnosis of axillary osmidrosis. We have recently reported that axillary osmidrosis is linked with one SNP 538G>A in the ABCC11 gene. Our molecular biological and biochemical studies have revealed that this SNP greatly affects the protein expression level and the function of ABCC11. In this review, we highlight the clinical relevance and importance of this diagnostic strategy in axillary osmidrosis therapy.
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Taneja I, Raju KSR, Wahajuddin M. Dietary Isoflavones as Modulators of Drug Metabolizing Enzymes and Transporters: Effect on Prescription Medicines. Crit Rev Food Sci Nutr 2015; 56 Suppl 1:S95-S109. [DOI: 10.1080/10408398.2015.1045968] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Efectos de los inductores antiepilépticos en la neuropsicofarmacología: una cuestión ignorada. Parte II: cuestiones farmacológicas y comprensión adicional. REVISTA DE PSIQUIATRIA Y SALUD MENTAL 2015; 8:167-88. [DOI: 10.1016/j.rpsm.2014.10.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 10/23/2014] [Indexed: 12/19/2022]
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Abstract
Primary brain tumors occur in around 250,000 people per year globally. Survival rates in primary brain tumors depend on the type of tumor, patient's age, the extent of surgical tumor removal, and other factors. Photodynamic diagnosis (PDD) is a practical tool currently used in surgical operation of aggressive brain tumors, such as glioblastoma and meningiomas, whereas clinical application of photodynamic therapy (PDT) to brain tumor therapy has just recently started. Both PDD and PDT are achieved by a photon-induced physicochemical reaction, which is induced by the excitation of porphyrins exposed to light. In fluorescence-guided gross-total resection, PDD can be achieved by the administration of 5-aminolevulinic acid (5-ALA) as the precursor of protoporphyrin IX (PpIX). Exogenously administered ALA induces biosynthesis and accumulation of PpIX, a natural photosensitizer, in cancer cells. However, ATP-binding cassette transporter ABCG2 plays a critical role in regulating the cellular accumulation of porphyrins in cancer cells and thereby its expression and function can affect the efficacy of PDD and PDT. In response to the photoreaction of porphyrins leading to oxidative stress, the nuclear factor erythroid-derived 2-related transcription factor can transcriptionally upregulate ABCG2, which may reduce the efficacy of PDD and PDT. On the other hand, certain protein kinase inhibitors potentially enhance the efficacy of PDD and PDT by blocking ABCG2-mediated porphyrin efflux from cancer cells. In this context, it is of great interest to develop ABCG2 inhibitors that can be applied to PDD or PDT for the therapy of brain tumor and other tumors.
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Lu X, Long Y, Lin L, Sun R, Zhong S, Cui Z. Characterization of zebrafish Abcc4 as an efflux transporter of organochlorine pesticides. PLoS One 2014; 9:e111664. [PMID: 25478949 PMCID: PMC4257548 DOI: 10.1371/journal.pone.0111664] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 09/29/2014] [Indexed: 11/18/2022] Open
Abstract
DDT and lindane are highly toxic organochlorine pesticides and posing adverse effects on the environment and public health due to their frequent usage in developing countries. ABCC4/MRP4 is an organic anion transporter that mediates cellular efflux of a wide range of exogenous and endogenous compounds such as cyclic nucleotides and anti-cancer drugs; however, it remains unclear whether ABCC4 and its orthologs function in the detoxification of organochlorine pesticides. Here, we demonstrated the roles of zebrafish Abcc4 in cellular efflux of DDT and lindane. Zebrafish abcc4 was maternally expressed in the oocytes and its transcripts were detected in the lens, pancreas, gills, liver, intestine and bladder of developing embryos and in adult tissues examined. DDT and lindane were able to induce the expression of abcc4 gene and overexpression of Abcc4 significantly decreased the cytotoxicity and accumulation of DDT and lindane in LLC-PK1 cells and developing embryos. In contrast, overexpression of an Abcc4-G1188D mutant abolished its transporter function without effects on its substrate binding activity, and sensitized LLC-PK1 cells and developing embryos to toxic pesticides. Moreover, glutathione (GSH) was involved in the efflux of cellular pesticides and ATPase activity in developing embryos can be induced by DDT or lindane. Thus, zebrafish Abcc4 plays crucial roles in cellular efflux of organochlorine pesticides and can be used a potential molecular marker for the monitor of DDT and lindane contamination in the aquatic environment.
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Affiliation(s)
- Xing Lu
- Department of Genetics, School of Basic Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Yong Long
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Li Lin
- Department of Genetics, School of Basic Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Rongze Sun
- Department of Genetics, School of Basic Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Shan Zhong
- Department of Genetics, School of Basic Medical Science, Wuhan University, Wuhan, Hubei, China
- * E-mail: (SZ); (ZC)
| | - Zongbin Cui
- The Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, China
- * E-mail: (SZ); (ZC)
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Huang H, Lu-Bo Y, Haddad GG. A Drosophila ABC transporter regulates lifespan. PLoS Genet 2014; 10:e1004844. [PMID: 25474322 PMCID: PMC4256198 DOI: 10.1371/journal.pgen.1004844] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 10/23/2014] [Indexed: 01/08/2023] Open
Abstract
MRP4 (multidrug resistance-associated protein 4) is a member of the MRP/ABCC subfamily of ATP-binding cassette (ABC) transporters that are essential for many cellular processes requiring the transport of substrates across cell membranes. Although MRP4 has been implicated as a detoxification protein by transport of structurally diverse endogenous and xenobiotic compounds, including antivirus and anticancer drugs, that usually induce oxidative stress in cells, its in vivo biological function remains unknown. In this study, we investigate the biological functions of a Drosophila homolog of human MRP4, dMRP4. We show that dMRP4 expression is elevated in response to oxidative stress (paraquat, hydrogen peroxide and hyperoxia) in Drosophila. Flies lacking dMRP4 have a shortened lifespan under both oxidative and normal conditions. Overexpression of dMRP4, on the other hand, is sufficient to increase oxidative stress resistance and extend lifespan. By genetic manipulations, we demonstrate that dMRP4 is required for JNK (c-Jun NH2-terminal kinase) activation during paraquat challenge and for basal transcription of some JNK target genes under normal condition. We show that impaired JNK signaling is an important cause for major defects associated with dMRP4 mutations, suggesting that dMRP4 regulates lifespan by modulating the expression of a set of genes related to both oxidative resistance and aging, at least in part, through JNK signaling. The drug transporters are often known for their ability to transport different physiological-related compounds across cell membranes. Although the abnormal up-regulation of some these transporters is believed to be the common cause of the clinic problem called drug resistance, the biological functions of these transporters remain largely unknown. Here we show that a Drosophila homolog of the mammalian drug transporter plays a role in lifespan regulation. Mutations of this gene increase the sensitivity to oxidative stress and reduce lifespan, while overexpression of this gene increases resistance to oxidative stress and extends lifespan. By molecular and genetic analyses, we have linked functions of this gene to a key signaling transduction pathway that has been known to be important in lifespan regulation.
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Affiliation(s)
- He Huang
- Department of Pediatrics (Division of Respiratory Medicine), University of California San Diego, La Jolla, California, United States of America
| | - Ying Lu-Bo
- Department of Pediatrics (Division of Respiratory Medicine), University of California San Diego, La Jolla, California, United States of America
| | - Gabriel G. Haddad
- Department of Pediatrics (Division of Respiratory Medicine), University of California San Diego, La Jolla, California, United States of America
- Rady Children's Hospital San Diego, San Diego, California, United States of America
- * E-mail:
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Hull JJ, Chaney K, Geib SM, Fabrick JA, Brent CS, Walsh D, Lavine LC. Transcriptome-based identification of ABC transporters in the western tarnished plant bug Lygus hesperus. PLoS One 2014; 9:e113046. [PMID: 25401762 PMCID: PMC4234516 DOI: 10.1371/journal.pone.0113046] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 10/18/2014] [Indexed: 12/11/2022] Open
Abstract
ATP-binding cassette (ABC) transporters are a large superfamily of proteins that mediate diverse physiological functions by coupling ATP hydrolysis with substrate transport across lipid membranes. In insects, these proteins play roles in metabolism, development, eye pigmentation, and xenobiotic clearance. While ABC transporters have been extensively studied in vertebrates, less is known concerning this superfamily in insects, particularly hemipteran pests. We used RNA-Seq transcriptome sequencing to identify 65 putative ABC transporter sequences (including 36 full-length sequences) from the eight ABC subfamilies in the western tarnished plant bug (Lygus hesperus), a polyphagous agricultural pest. Phylogenetic analyses revealed clear orthologous relationships with ABC transporters linked to insecticide/xenobiotic clearance and indicated lineage specific expansion of the L. hesperus ABCG and ABCH subfamilies. The transcriptional profile of 13 LhABCs representative of the ABCA, ABCB, ABCC, ABCG, and ABCH subfamilies was examined across L. hesperus development and within sex-specific adult tissues. All of the transcripts were amplified from both reproductively immature and mature adults and all but LhABCA8 were expressed to some degree in eggs. Expression of LhABCA8 was spatially localized to the testis and temporally timed with male reproductive development, suggesting a potential role in sexual maturation and/or spermatozoa protection. Elevated expression of LhABCC5 in Malpighian tubules suggests a possible role in xenobiotic clearance. Our results provide the first transcriptome-wide analysis of ABC transporters in an agriculturally important hemipteran pest and, because ABC transporters are known to be important mediators of insecticidal resistance, will provide the basis for future biochemical and toxicological studies on the role of this protein family in insecticide resistance in Lygus species.
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Affiliation(s)
- J. Joe Hull
- USDA-ARS, Arid Land Agricultural Research Center, Maricopa, Arizona, United States of America
- * E-mail:
| | - Kendrick Chaney
- USDA-ARS, Arid Land Agricultural Research Center, Maricopa, Arizona, United States of America
| | - Scott M. Geib
- USDA-ARS, Daniel K. Inouye Pacific Basin Agricultural Research Center, Hilo, Hawaii, United States of America
| | - Jeffrey A. Fabrick
- USDA-ARS, Arid Land Agricultural Research Center, Maricopa, Arizona, United States of America
| | - Colin S. Brent
- USDA-ARS, Arid Land Agricultural Research Center, Maricopa, Arizona, United States of America
| | - Douglas Walsh
- Dept. of Entomology, Washington State University, Pullman, Washington, United States of America
| | - Laura Corley Lavine
- Dept. of Entomology, Washington State University, Pullman, Washington, United States of America
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37
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Zeng F, Ju RJ, Li XT, Lu WL. Advances in investigations on the mechanism of cancer multidrug resistance and the liposomes-based treatment strategy. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2014. [DOI: 10.1007/s40005-014-0154-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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38
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Tinker A, Aziz Q, Thomas A. The role of ATP-sensitive potassium channels in cellular function and protection in the cardiovascular system. Br J Pharmacol 2014; 171:12-23. [PMID: 24102106 DOI: 10.1111/bph.12407] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 07/30/2013] [Accepted: 08/26/2013] [Indexed: 12/14/2022] Open
Abstract
ATP-sensitive potassium channels (K(ATP)) are widely distributed and present in a number of tissues including muscle, pancreatic beta cells and the brain. Their activity is regulated by adenine nucleotides, characteristically being activated by falling ATP and rising ADP levels. Thus, they link cellular metabolism with membrane excitability. Recent studies using genetically modified mice and genomic studies in patients have implicated K(ATP) channels in a number of physiological and pathological processes. In this review, we focus on their role in cellular function and protection particularly in the cardiovascular system.
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Affiliation(s)
- Andrew Tinker
- William Harvey Heart Centre, Barts and The London School of Medicine and Dentistry, London, UK
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39
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Matsumoto H, Tsuchiya T, Yoshiura KI, Hayashi T, Hidaka S, Nanashima A, Nagayasu T. ABCC11/MRP8 Expression in the Gastrointestinal Tract and a Novel Role for Pepsinogen Secretion. Acta Histochem Cytochem 2014; 47:85-94. [PMID: 25320405 PMCID: PMC4164699 DOI: 10.1267/ahc.13040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 04/02/2014] [Indexed: 01/21/2023] Open
Abstract
ATP-binding cassette (ABC) transporters are involved in chemotherapy resistance. Multidrug-resistance protein 8 (ABCC11/MRP8) is also involved in 5-fluorouracil (5-FU) metabolism. 5-FU and its derivatives are widely used in the treatment of gastrointestinal tract cancers, but little is known about the contribution of ABCC11/MRP8 to gastrointestinal tract and related cancers. Here, we report our investigation of ABCC11/MRP8 expression in normal and cancerous gastrointestinal tract tissues and reveal its novel role in the gastric mucosa. In tissue microarray and surgically resected cancer specimens, immunohistochemical (IHC) staining revealed significantly reduced expression of ABCC11/MRP8 in gastrointestinal tract cancers compared with other cancers. In contrast, strong ABCC11/MRP8 expression was observed in normal gastric mucosa. Additional immunofluorescence assays revealed co-localization of ABCC11/MRP8 and pepsinogen I in normal gastric chief cells. Quantitative PCR and Western blot analysis also revealed significant expression of ABCC11/MRP8 in fundic mucosa where the chief cells are mainly located. Furthermore, the ABCC11 mRNA-suppressed NCI-N87 gastric cancer cell line failed to secret pepsinogen I extracellularly. Thus, low expression of ABCC11/MRP8 is consistent with chemotherapeutic regimens using 5-FU and its derivatives in gastrointestinal tract cancers. Our results indicated a novel function of ABCC11/MRP8 in the regulation of pepsinogen I secretion in the normal gastric chief cells.
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Affiliation(s)
- Hirofumi Matsumoto
- Division of Surgical Oncology, Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences
| | - Tomoshi Tsuchiya
- Division of Surgical Oncology, Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences
| | - Koh-ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences
| | | | - Shigekazu Hidaka
- Division of Surgical Oncology, Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences
| | - Atsushi Nanashima
- Division of Surgical Oncology, Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences
| | - Takeshi Nagayasu
- Division of Surgical Oncology, Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences
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40
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Panzarini E, Dini L. Nanomaterial-induced autophagy: a new reversal MDR tool in cancer therapy? Mol Pharm 2014; 11:2527-38. [PMID: 24921216 DOI: 10.1021/mp500066v] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Most of the therapeutic strategies to counteract cancer imply killing of malignant cells. The most exploited cell death mechanism in cancer therapies is apoptosis, but recently, a lot of papers report that other mechanisms, mainly autophagy, could represent a new line of attack in the fight against cancer. One of the limitations for the effectiveness of the approved clinical treatments is the phenomenon of multidrug resistance (MDR) which enables the cancer cells to develop resistance to therapy, especially for chemotherapy. The MDR mechanisms include (a) decreased uptake of drug, (b) reduced intracellular drug concentration by efflux pumps, (c) altered cell cycle checkpoints, (d) altered drug targets, (e) increased metabolism of drugs, (f) induced emergency response genes to impair apoptotic pathway, and (g) altered drug detoxification. Great efforts have been made to reverse MDR. Currently, autophagy and nanosized drug delivery systems (DDSs) belonging to nanomaterials (NMs) provide alternative strategies to circumvent MDR. Nanosized DDSs are very promising tools to accumulate chemotherapeutics at targeting sites and control temporal and spatial drug release into tumor cells. On the other hand, autophagy could overrule drug resistance upon its activation by ensuring cell death via switching its prosurvival role to a prodeath one or by mediating the occurrence of cell death, i.e., apoptosis or necrosis. Likewise, the autophagy inhibition could counteract MDR by sensitizing the cells to anticancer molecules, i.e., Src family tyrosine kinase (SFK) inhibitors or 5-fluorouracil. Noteworthy, autophagy has been recently indicated to be a common cellular response to NMs, corroborating the fascinating idea of the exploitation of NM-induced autophagy in nanomedicine therapy. This review focuses on recently published literature about the relationship between MDR reversal and NMs or autophagy pointing to hypothesize a pivotal role of autophagy modulation induced by NMs in counteracting MDR.
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Affiliation(s)
- Elisa Panzarini
- Department of Biological and Environmental Science and Technology (Di.S.Te.B.A.), University of Salento , 73100 Lecce, Italy
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41
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Korolnek T, Zhang J, Beardsley S, Scheffer GL, Hamza I. Control of metazoan heme homeostasis by a conserved multidrug resistance protein. Cell Metab 2014; 19:1008-19. [PMID: 24836561 PMCID: PMC4052561 DOI: 10.1016/j.cmet.2014.03.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 01/23/2014] [Accepted: 03/25/2014] [Indexed: 01/30/2023]
Abstract
Several lines of evidence predict that specific pathways must exist in metazoans for the escorted movement of heme, an essential but cytotoxic iron-containing organic ring, within and between cells and tissues, but these pathways remain obscure. In Caenorhabditis elegans, embryonic development is inextricably dependent on both maternally derived heme and environmentally acquired heme. Here, we show that the multidrug resistance protein MRP-5/ABCC5 likely acts as a heme exporter, and targeted depletion of mrp-5 in the intestine causes embryonic lethality. Transient knockdown of mrp5 in zebrafish leads to morphological defects and failure to hemoglobinize red blood cells. MRP5 resides on the plasma membrane and endosomal compartments and regulates export of cytosolic heme. Together, our genetic studies in worms, yeast, zebrafish, and mammalian cells identify a conserved, physiological role for a multidrug resistance protein in regulating systemic heme homeostasis. We envision other MRP family members may play similar unanticipated physiological roles in animal development.
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Affiliation(s)
- Tamara Korolnek
- Department of Animal and Avian Sciences and Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA
| | - Jianbing Zhang
- Department of Animal and Avian Sciences and Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA
| | - Simon Beardsley
- Department of Animal and Avian Sciences and Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA
| | - George L Scheffer
- Department of Pathology, VU University Medical Center, 1007 MB Amsterdam, the Netherlands
| | - Iqbal Hamza
- Department of Animal and Avian Sciences and Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA.
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42
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Abstract
Multidrug resistance presents one of the most important causes of cancer treatment failure. Numerous in vitro and in vivo data have made it clear that multidrug resistance is frequently caused by enhanced expression of ATP-binding cassette (ABC) transporters. ABC transporters are membrane-bound proteins involved in cellular defense mechanisms, namely, in outward transport of xenobiotics and physiological substrates. Their function thus prevents toxicity as carcinogenesis on one hand but may contribute to the resistance of tumor cells to a number of drugs including chemotherapeutics on the other. Within 48 members of the human ABC superfamily there are several multidrug resistance-associated transporters. Due to the well documented susceptibility of numerous drugs to efflux via ABC transporters it is highly desirable to assess the status of ABC transporters for individualization of treatment by their substrates. The multidrug resistance associated protein 1 (MRP1) encoded by ABCC1 gene is one of the most studied ABC transporters. Despite the fact that its structure and functions have already been explored in detail, there are significant gaps in knowledge which preclude clinical applications. Tissue-specific patterns of expression and broad genetic variability make ABCC1/MRP1 an optimal candidate for use as a marker or member of multi-marker panel for prediction of chemotherapy resistance. The purpose of this review was to summarize investigations about associations of gene and protein expression and genetic variability with prognosis and therapy outcome of major cancers. Major advances in the knowledge have been identified and future research directions are highlighted.
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Affiliation(s)
- Tereza Kunická
- Department of Toxicogenomics, National Institute of Public Health , Prague , Czech Republic
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43
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Cancer multidrug resistance: mechanisms involved and strategies for circumvention using a drug delivery system. Arch Pharm Res 2013; 37:4-15. [DOI: 10.1007/s12272-013-0276-2] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 10/22/2013] [Indexed: 11/27/2022]
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44
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Palmer AM, Alavijeh MS. Overview of experimental models of the blood-brain barrier in CNS drug discovery. ACTA ACUST UNITED AC 2013; 62:7.15.1-7.15.30. [PMID: 24510719 DOI: 10.1002/0471141755.ph0715s62] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The blood-brain barrier (BBB) is a physical and metabolic entity that isolates the brain from the systemic circulation. The barrier consists of tight junctions between endothelial cells that contain egress transporters and catabolic enzymes. To cross the BBB, a drug must possess the appropriate physicochemical properties to achieve a sufficient time-concentration profile in brain interstitial fluid (ISF). In this overview, we review techniques to measure BBB permeation, which is evidenced by the free concentration of compound in brain ISF over time. We consider a number of measurement techniques, including in vivo microdialysis and brain receptor occupancy following perfusion. Consideration is also given to the endothelial and nonendothelial cell systems used to assess both the BBB permeation of a test compound and its interactions with egress transporters, and computer models employed for predicting passive permeation and the probability of interactions with BBB transporters.
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45
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Ishikawa T, Kajimoto Y, Sun W, Nakagawa H, Inoue Y, Ikegami Y, Miyatake SI, Kuroiwa T. Role of Nrf2 in Cancer Photodynamic Therapy: Regulation of Human ABC Transporter ABCG2. J Pharm Sci 2013; 102:3058-69. [DOI: 10.1002/jps.23563] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 04/02/2013] [Accepted: 04/03/2013] [Indexed: 12/30/2022]
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46
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Tsui LC, Dorfman R. The cystic fibrosis gene: a molecular genetic perspective. Cold Spring Harb Perspect Med 2013; 3:a009472. [PMID: 23378595 DOI: 10.1101/cshperspect.a009472] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The positional cloning of the gene responsible for cystic fibrosis (CF) was the important first step in understanding the basic defect and pathophysiology of the disease. This study aims to provide a historical account of key developments as well as factors that contributed to the cystic fibrosis transmembrane conductance regulator (CFTR) gene identification work. A redefined gene structure based on the full sequence of the gene derived from the Human Genome Project is presented, along with brief reviews of the transcription regulatory sequences for the CFTR gene, the role of mRNA splicing in gene regulation and CF disease, and, various related sequences in the human genome and other species. Because CF mutations and genotype-phenotype correlations are covered by our colleagues (Ferec C, Cutting GR. 2012. Assessing the disease-liability of mutations in CFTR. Cold Spring Harb Perspect Med doi: 10.1101/cshperspect.a009480), we only attempt to provide an introduction of the CF mutation database here for reference purposes.
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Affiliation(s)
- Lap-Chee Tsui
- The University of Hong Kong, Hong Kong, Special Administrative Region, China.
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47
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Ishikawa T, Toyoda Y, Yoshiura KI, Niikawa N. Pharmacogenetics of human ABC transporter ABCC11: new insights into apocrine gland growth and metabolite secretion. Front Genet 2013; 3:306. [PMID: 23316210 PMCID: PMC3539816 DOI: 10.3389/fgene.2012.00306] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 12/11/2012] [Indexed: 11/13/2022] Open
Abstract
Cell secretion is an important physiological process that ensures smooth metabolic activities and tissue repair as well as growth and immunological functions in the body. Apocrine secretion occurs when the secretory process is accomplished with a partial loss of cell cytoplasm. The secretory materials are contained within secretory vesicles and are released during secretion as cytoplasmic fragments into the glandular lumen or interstitial space. The recent finding that the non-synonymous single nucleotide polymorphisms (SNP) 538G > A (rs17822931; Gly180Arg) in the ABCC11 gene determines the type of earwax in humans has shed light on the novel function of this ABC (ATP-binding cassette) transporter in apocrine glands. The wild-type (Gly180) of ABCC11 is associated with wet-type earwax, axillary osmidrosis, and colostrum secretion from the mammary gland as well as the potential risk of mastopathy. Furthermore, the SNP (538G > A) in the ABCC11 gene is suggested to be a clinical biomarker for the prediction of chemotherapeutic efficacy. The aim of this review article is to provide an overview on the discovery and characterization of genetic polymorphisms in the human ABCC11 gene and to explain the impact of ABCC11 538G > A on the apocrine phenotype as well as the anthropological aspect of this SNP in the ABCC11 gene and patients’ response to nucleoside-based chemotherapy.
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Affiliation(s)
- Toshihisa Ishikawa
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology Yokohama, Japan ; Omics Science Center, RIKEN Yokohama Institute Yokohama, Japan
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48
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Chu X, Bleasby K, Evers R. Species differences in drug transporters and implications for translating preclinical findings to humans. Expert Opin Drug Metab Toxicol 2012; 9:237-52. [DOI: 10.1517/17425255.2013.741589] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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49
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Couto MR, Gonçalves P, Catarino T, Araújo JR, Correia-Branco A, Martel F. The effect of oxidative stress upon the intestinal uptake of folic acid: in vitro studies with Caco-2 cells. Cell Biol Toxicol 2012; 28:369-81. [PMID: 22956110 DOI: 10.1007/s10565-012-9228-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 07/18/2012] [Indexed: 10/27/2022]
Abstract
Folic acid (FA) is a vitamin essential for normal cellular functions, growth, and development. Because humans cannot synthesize this micronutrient, it must be obtained from dietary sources through intestinal absorption. The intestinal tract is a major target for oxidative stress. Our aim was to investigate the effect of oxidative stress upon the uptake of FA by Caco-2 cells. Oxidative stress was induced by exposure of the cells to tert-butyl hydroperoxide (TBH) for 1 h. TBH (3,000 μM) induced an increase in biomarkers of oxidative stress, while maintaining cell viability and proliferation. In relation to the apical uptake of (3)H-FA, TBH (3,000 μM) reduced the cellular accumulation of (3)H-FA (10 nM), although the characteristics (kinetics, pH dependence, and inhibitory profile) of (3)H-FA uptake were not changed. This effect was associated with a decrease in the mRNA steady-state levels of proton-coupled folate transporter and folate receptor alpha and of the efflux transporter multidrug resistance protein 2. Moreover, TBH (3,000 μM) did not affect the noncarrier-mediated apical uptake of (3)H-FA. Finally, the effect of TBH upon (3)H-FA apical uptake was not dependent on protein kinase A, protein kinase C, mitogen-activated protein kinases, phosphoinositide 3-kinase, nuclear factor kappa B, and protein tyrosine kinases, but was completely prevented by dietary polyphenols (resveratrol, quercetin, and EGCG). These results suggest that oxidative stress at the intestinal level may result in a reduction in the intestinal absorption of dietary FA and that polyphenolic dietary components may offer protection against oxidative stress-induced inhibition of intestinal FA absorption.
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Affiliation(s)
- Mafalda R Couto
- Department of Biochemistry (U38-FCT), Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319, Porto, Portugal
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50
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Sivils JC, Ancrum TM, Bain LJ. LOSS of Mrp1 alters detoxification enzyme expression in a tissue- and hormonal-status-specific manner. J Appl Toxicol 2012; 33:766-73. [PMID: 22522787 DOI: 10.1002/jat.2727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 12/29/2011] [Accepted: 12/29/2011] [Indexed: 12/24/2022]
Abstract
The multidrug resistance-associated protein1 (MRP1/ABCC1) is a member of the ABCC transporter subfamily that mediates the efflux of pharmaceuticals, xenobiotics and steroid hormones, typically as glutathione, glucuronide or sulfate conjugates. Since loss of one transporter can be compensated by increasing the expression of other transporters and conjugation enzymes, we sought to examine compensatory changes in phase I, II and III enzyme expression in extrahepatic tissues, including the kidney, lungs and small intestine of intact or castrated Mrp1(-/-) male mice. In the kidney, the expression of several P450s, sulfotransferase 1a1 (Sult), glucuronosyltransferases (Ugt) and Mrps2-4, were significantly changed owing to castration alone. The only time genotype mattered was between the castrated FVB and Mrp1 knockout mice. In contrast, expression of the Ugts, Sult 1a1 and Mrp3 in the lungs was significantly downregulated in the Mrp1 knockout mice, so based exclusively on genotype. In the small intestine, there were interactions between steroid hormone levels and genotype, as the expression differences were only found in mice lacking Mrp1, and were changed between intact and castrated animals. The mechanism behind this pattern of expression may be to due to Nrf2 regulation, as its expression mirrors that of the phase II and phase III enzymes. These results indicate that compensatory responses owing to the loss of Mrp1 vary dramatically, depending on the particular tissue. This information will aid in the understanding of how drug uptake, disposition and elimination can be influenced by both hormone status and the presence and magnitude of transporter expression.
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Affiliation(s)
- Jeffrey C Sivils
- Department of Biological Sciences, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79910, USA
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