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De Bortoli CP, Polanczyk RA, Crickmore N. Throwing Brazilian strains into the melting pot of P. xylostella resistance to Bacillus thuringiensis. J Invertebr Pathol 2024; 204:108101. [PMID: 38574951 DOI: 10.1016/j.jip.2024.108101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
The resistance of pest insects to biopesticides based on the bacterium Bacillus thuringiensis (Bt) is normally associated with changes to the receptors involved in the mechanism of action of the pesticidal proteins produced by Bt. In some strains of Plutella xylostella (the diamondback moth) resistance has evolved through a signalling mechanism in which the genes encoding the receptor proteins are downregulated whereas in others it has been linked to structural changes in the receptors themselves. One such well characterized mutation is in the ABCC2 gene indicating that changes to this protein can result in resistance. However other studies have found that knocking out this protein does not result in a significant level of resistance. In this study we wanted to test the hypothesis that constitutive receptor downregulation is the major cause of Bt resistance in P. xylostella and that mutations in the now poorly expressed receptor genes may not contribute significantly to the phenotype. To that end we investigated the expression of a receptor (ABCC2) and the major regulator of the signalling pathway (MAP4K4) in two resistant and four susceptible strains. No correlation was found between expression levels and susceptibility; however, a frameshift mutation was identified in the ABCC2 receptor in a newly characterized resistant strain.
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Affiliation(s)
- Caroline Placidi De Bortoli
- School of Life Sciences, University of Sussex, Brighton, UK; Faculty of Agricultural and Veterinary Sciences, Paulista State University "Júlio de Mesquita Filho", Jaboticabal Campus, SP, Brazil
| | - Ricardo Antonio Polanczyk
- Faculty of Agricultural and Veterinary Sciences, Paulista State University "Júlio de Mesquita Filho", Jaboticabal Campus, SP, Brazil
| | - Neil Crickmore
- School of Life Sciences, University of Sussex, Brighton, UK.
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2
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Choong CL, Islahudin F, Wong HS, Yahya R, Mohd Tahir NA, Makmor-Bakry M. The Impact of ABCC2 -24C>T Gene Polymorphism on Graft Survival in Kidney Transplant Recipients. J Pers Med 2024; 14:440. [PMID: 38673067 PMCID: PMC11050844 DOI: 10.3390/jpm14040440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
Personalized medicine in kidney transplantation has the potential to improve outcomes and reduce complications. The aim of this study was to investigate the influence of single nucleotide polymorphisms in genes encoding metabolizing enzymes (CYP3A5) and transporters (ABCC2) on clinical outcomes (acute graft failure and/or acute tubular necrosis (ATN)) in kidney transplant recipients (KTR). This was a multicenter, retrospective cohort study where adult KTR who had undergone kidney transplantation between 2020 and 2021 and received tacrolimus-mycophenolate treatment were enrolled in the study. DNA was extracted from collected blood samples using a commercially available kit. CYP3A5*3, ABCC2 -24C>T and ABCC2 3972C>T SNP were determined by polymerase chain reaction. Of the total 39 patients included, nine (23.1%) KTR had an incidence of acute graft failure and/or ATN. A multiple logistic regression showed wildtype ABCC2 -24C>T C allele had a higher risk of developing acute graft rejection and/or ATN compared to the variant allele carriers (adjusted Odd Ratios [aOR]: 27.675, p = 0.038). Recipients who had delayed graft function (aOR: 49.214, p = 0.012) and a history of CMV infection (aOR: 18.097, p = 0.009) were at 49.2 and 18.1-times increased risk for acute graft failure and/or ATN, respectively. The large aOR was inevitable due to the small sample size and required cautious interpretation. This is the first study to determine the effect of the ABCC2 -24C>T genetic polymorphism on clinical outcomes in Malaysian KTR and forms the basis for further work on ABCC2 -24C>T effects in long-term KTR.
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Affiliation(s)
- Chiau Ling Choong
- Center of Quality Medicine Management, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (C.L.C.); (N.A.M.T.); (M.M.-B.)
| | - Farida Islahudin
- Center of Quality Medicine Management, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (C.L.C.); (N.A.M.T.); (M.M.-B.)
| | - Hin-Seng Wong
- Department of Nephrology, Selayang Hospital, Ministry of Health Malaysia, Batu Caves 68100, Malaysia;
- Sunway Medical Centre, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya 46150, Malaysia
| | - Rosnawati Yahya
- Department of Nephrology, Kuala Lumpur Hospital, Ministry of Health Malaysia, Kuala Lumpur 50586, Malaysia;
| | - Nor Asyikin Mohd Tahir
- Center of Quality Medicine Management, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (C.L.C.); (N.A.M.T.); (M.M.-B.)
| | - Mohd Makmor-Bakry
- Center of Quality Medicine Management, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia; (C.L.C.); (N.A.M.T.); (M.M.-B.)
- Faculty of Pharmacy, Universitas Airlangga, Surabaya 60115, Indonesia
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3
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Rigalli JP, Gagliardi A, Diester K, Bajraktari-Sylejmani G, Blank A, Burhenne J, Lenard A, Werntz L, Huppertz A, Münch L, Wendt JM, Sauter M, Haefeli WE, Weiss J. Extracellular Vesicles as Surrogates for the Regulation of the Drug Transporters ABCC2 (MRP2) and ABCG2 (BCRP). Int J Mol Sci 2024; 25:4118. [PMID: 38612927 PMCID: PMC11012658 DOI: 10.3390/ijms25074118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Drug efflux transporters of the ATP-binding-cassette superfamily play a major role in the availability and concentration of drugs at their site of action. ABCC2 (MRP2) and ABCG2 (BCRP) are among the most important drug transporters that determine the pharmacokinetics of many drugs and whose overexpression is associated with cancer chemoresistance. ABCC2 and ABCG2 expression is frequently altered during treatment, thus influencing efficacy and toxicity. Currently, there are no routine approaches available to closely monitor transporter expression. Here, we developed and validated a UPLC-MS/MS method to quantify ABCC2 and ABCG2 in extracellular vesicles (EVs) from cell culture and plasma. In this way, an association between ABCC2 protein levels and transporter activity in HepG2 cells treated with rifampicin and hypericin and their derived EVs was observed. Although ABCG2 was detected in MCF7 cell-derived EVs, the transporter levels in the vesicles did not reflect the expression in the cells. An analysis of plasma EVs from healthy volunteers confirmed, for the first time at the protein level, the presence of both transporters in more than half of the samples. Our findings support the potential of analyzing ABC transporters, and especially ABCC2, in EVs to estimate the transporter expression in HepG2 cells.
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Affiliation(s)
- Juan Pablo Rigalli
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Anna Gagliardi
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Klara Diester
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Gzona Bajraktari-Sylejmani
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Antje Blank
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Jürgen Burhenne
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Alexander Lenard
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Lars Werntz
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Andrea Huppertz
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
- MVZ Diaverum Remscheid, Rosenhügelstraße 4a, 42859 Remscheid, Germany
| | - Lena Münch
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Janica Margrit Wendt
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Max Sauter
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Walter Emil Haefeli
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
| | - Johanna Weiss
- Department of Clinical Pharmacology and Pharmacoepidemiology, Medical Faculty Heidelberg, Heidelberg University Hospital, Heidelberg University, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany (W.E.H.); (J.W.)
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Castillo VF, Trpkov K, Van der Kwast T, Rotondo F, Hamdani M, Saleeb R. Papillary renal neoplasm with reverse polarity is biologically and clinically distinct from eosinophilic papillary renal cell carcinoma. Pathol Int 2024; 74:222-226. [PMID: 38456605 DOI: 10.1111/pin.13417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/09/2024]
Abstract
Papillary renal neoplasm with reverse polarity (PRNRP) is a recently described indolent entity with distinct features and its recognition from other oncocytic/eosinophilic papillary renal cell carcinoma (ePRCC) has important prognostic implications. ABCC2, a renal drug transporter, is overexpressed in aggressive PRCCs. In this study, we compared the clinicopathological parameters and the biological ABCC2 expression between PRNRP and ePRCC. PRNRP (n = 8) and ePRCC (n = 21) cases were selected from resection specimens and corresponding clinicopathological data were collected. ABCC2 immunohistochemical (IHC) staining was performed and ABCC2 staining patterns were classified as negative, cytoplasmic, and brush-border. RNA in-situ hybridization (ISH) was used to assess ABCC2 transcript levels. All eight PRNRP cases had weak cytoplasmic ABCC2 IHC reactivity; however, they showed no detectable ABCC2 transcripts on RNA ISH. In comparison, 76% (16/21) of ePRCCs showed ABCC2 IHC brush-border expression and significantly higher ABCC2 RNA ISH transcript levels (p < 0.001). Additionally, the ePRCC group showed a significantly larger tumor size (p = 0.004), higher WHO/ISUP grade (p < 0.001), and stage (p = 0.044). None of the PRNRP cases showed disease progression, while 9.5% (2/21) ePRCCs had disease progression. PRNRP is clinically and biologically distinct from ePRCC. Hence, it is crucial to differentiate between these two entities, particularly in needle core biopsies.
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Affiliation(s)
- Vincent Francis Castillo
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Kiril Trpkov
- Department of Pathology and Laboratory Medicine, Alberta Precision Laboratories and University of Calgary, Calgary, Alberta, Canada
| | - Theodorus Van der Kwast
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Division of Pathology, University Health Network, Toronto, Ontario, Canada
| | - Fabio Rotondo
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Malek Hamdani
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, Ontario, Canada
| | - Rola Saleeb
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, Ontario, Canada
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Wang L, Xu M, He L, Wei W, Xu D, Cong S, Liu K, Wan P. Mutation in Pg ABCC2 confers low-level resistance to Cry1Ac in pink bollworm. Pest Manag Sci 2024. [PMID: 38380740 DOI: 10.1002/ps.8036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND With the increasing incidence of pest resistance to transgenic crops producing Bacillus thuringiensis (Bt) proteins in the field, elucidating the molecular basis of resistance is important for monitoring, delaying and countering pest resistance. Previous work revealed that mutation or down-regulated expression of the cadherin gene (PgCad1) is associated with pink bollworm (Pectinophora gossypiella) resistance to Cry1Ac, and 20 mutant PgCad1 alleles (r1-r20) were characterized. Here, we tested the hypothesis that the ABC transporter PgABCC2 is a functional receptor for the Bt toxin Cry1Ac and that a mutation is associated with resistance. RESULTS We identified and characterized the first resistance allele (rC2 ) of PgABCC2 in the laboratory-selected Cry1Ac-resistant strain AQ-C2 of pink bollworm. The rC2 allele had a one-base deletion in exon20, resulting in a frameshift and the introduction of a premature stop codon. This resulting PgABCC2 protein had a truncated C-terminus, including the loss of the NBD2 domain. AQ-C2 exhibited 20.2-fold greater resistance to Cry1Ac than the susceptible strain, and its inheritance of Cry1Ac resistance was recessive and genetically linked to PgABCC2. When produced in cultured insect cells, recombinant wild-type and rC2 mutant PgABCC2 proteins localized within the cell plasma membrane, although substantial cytoplasmic retention was also observed for the mutant protein, while the mutant PgABCC2 caused a 13.9-fold decrease in Cry1Ac toxicity versus the wild-type PgABCC2. CONCLUSIONS PgABCC2 is a functional receptor of Cry1Ac and the loss of its carboxyl terminus (including its NBD2 domain) confers low-level resistance to Cry1Ac in both larvae and in cultured cells. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Ling Wang
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Min Xu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Lu He
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Wei Wei
- Applied Biotechnology Center, Wuhan University of Bioengineering, Wuhan, China
| | - Dong Xu
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Shengbo Cong
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Kaiyu Liu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Peng Wan
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, China
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Wang S, Li Z, Gao Z, Zhang M, Rao F, Lu J, Xu H, Xie Z, Ding X. Integrative analysis of rs717620 polymorphism in therapeutic response to anti-seizure medications. Heliyon 2024; 10:e23942. [PMID: 38192780 PMCID: PMC10772244 DOI: 10.1016/j.heliyon.2023.e23942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 11/03/2023] [Accepted: 12/15/2023] [Indexed: 01/10/2024] Open
Abstract
Background Previous studies have shown that the rs717620 polymorphism in ABCC2, the gene encoding multidrug resistance protein 2, influences the therapeutic response to anti-seizure medications (ASMs). However, this result is not consistent, and the mechanism by which rs717620 influences ASM responses is unclear. Aims The present study evaluated the association between rs717620 genotype and ASM efficacy, and examined the potential mechanisms. Main methods: We conducted a literature search of five electronic databases, Embase, Medline, Web of Science, China National Knowledge Infrastructure, and Wanfang, to identify relevant studies on response to ASM therapy among rs717620 genotypes. Expression quantitative trait loci analysis and drug-gene interaction analysis were also performed to assess the underlying mechanisms. Key findings The pooled results for 18 studies revealed a significant association between rs717620 genotype and ASM resistance under the recessive model (TT vs. CT + CC: OR = 1.68, 95 % CI = 1.27-2.21, I2 = 3.1 %). A significant association was also found in the Asian population under the recessive model (TT vs. CT + CC: OR = 1.70, 95 % CI = 1.26-2.29, I2 = 29.3 %). Further analysis revealed that rs717620 regulates the expression of ABCC2 in human brain, while drug-gene interaction analysis suggested that ABCC2 interacts with oxcarbazepine and carbamazepine. Significance The rs717620 polymorphism influences ASM therapeutic responses by altering brain expression levels of ABCC2.
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Affiliation(s)
- Shitao Wang
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Zongyou Li
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Zhibo Gao
- Department of neurosurgery, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Mengen Zhang
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Feng Rao
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Jinghong Lu
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Hui Xu
- Department of Neurology, Affiliated Fuyang People's Hospital of Anhui Medical University, Fuyang 236000, Anhui, China
| | - Zhenrong Xie
- The Medical Biobank, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - XiangQian Ding
- Department of neurosurgery, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
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Castillo VF, Masoomian M, Trpkov K, Downes M, Brimo F, van der Kwast T, Yousef GM, Zakhary A, Rotondo F, Saad G, Nguyen VN, Kidanewold W, Streutker C, Rowsell C, Hamdani M, Saleeb RM. ABCC2 brush-border expression predicts outcome in papillary renal cell carcinoma: a multi-institutional study of 254 cases. Histopathology 2023; 83:949-958. [PMID: 37680023 DOI: 10.1111/his.15042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/18/2023] [Accepted: 08/18/2023] [Indexed: 09/09/2023]
Abstract
AIMS Papillary renal cell carcinoma (PRCC) histologic subtyping is no longer recommended in the 2022 WHO classification. Currently, WHO/ISUP nucleolar grade is the only accepted prognostic histologic parameter for PRCC. ABCC2, a renal drug transporter, has been shown to significantly predict outcomes in PRCC. In this study we evaluated the prognostic significance of ABCC2 IHC staining patterns in a large, multi-institutional PRCC cohort and assessed the association of these patterns with ABCC2 mRNA expression. METHODS AND RESULTS We assessed 254 PRCCs for ABCC2 IHC reactivity patterns that were stratified into negative, cytoplasmic, brush-border <50%, and brush-border ≥50%. RNA in situ hybridization (ISH) was used to determine the transcript level of each group. Survival analysis was performed with SPSS and GraphPad software. RNA-ISH showed that the ABCC2 group with any brush-border staining was associated with a significant increase in the transcript level, when compared to the negative/cytoplasmic group (P = 0.034). Both ABCC2 groups with brush-border <50% (P = 0.024) and brush-border ≥50% (P < 0.001) were also associated with worse disease-free survival (DFS) in univariate analysis. Multivariate analysis showed that only ABCC2 IHC brush-border (<50% and ≥50%) reactivity groups (P = 0.037 and P = 0.003, respectively), and high-stage disease (P < 0.001) had a DFS of prognostic significance. In addition, ABCC2 brush-border showed significantly worse DFS in pT1a (P = 0.014), pT1 (P = 0.013), ≤4 cm tumour (P = 0.041) and high stage (P = 0.014) groups, while a similar analysis with high WHO/ISUP grade in these groups was not significant. CONCLUSION ABCC2 IHC brush-border expression in PRCC correlates with significantly higher gene expression and also independently predicts survival outcomes.
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Affiliation(s)
- Vincent Francis Castillo
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Mehdi Masoomian
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
| | - Kiril Trpkov
- Department of Pathology and Laboratory Medicine, Alberta Precision Laboratories and University of Calgary, Calgary, AB, Canada
| | - Michelle Downes
- Anatomic Pathology, Precision Diagnostics & Therapeutics Program, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Fadi Brimo
- Department of Pathology, McGill University Health Center, Montreal, QC, Canada
| | - Theodorus van der Kwast
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Division of Pathology, University Health Network, Toronto, ON, Canada
| | - George M Yousef
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Division of Pathology, University Health Network, Toronto, ON, Canada
| | - Abraam Zakhary
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Fabio Rotondo
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
| | - Gina Saad
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Vy-Nhan Nguyen
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Wondwossen Kidanewold
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
| | - Catherine Streutker
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
| | - Corwyn Rowsell
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
| | - Malek Hamdani
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
| | - Rola M Saleeb
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
- Department of Laboratory Medicine, Unity Health Toronto, Toronto, ON, Canada
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8
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Muita BK, Baxter SW. Temporal Exposure to Bt Insecticide Causes Oxidative Stress in Larval Midgut Tissue. Toxins (Basel) 2023; 15:toxins15050323. [PMID: 37235357 DOI: 10.3390/toxins15050323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/28/2023] Open
Abstract
Bacillus thuringiensis (Bt) three-domain Cry toxins are highly successful biological pesticides; however, the mechanism through which they cause death to targeted larval midgut cells is not fully understood. Herein, we challenged transgenic Bt-susceptible Drosophila melanogaster larvae with moderate doses of activated Cry1Ac toxin and assessed the midgut tissues after one, three, and five hours using transmission electron microscopy and transcriptome sequencing. Larvae treated with Cry1Ac showed dramatic changes to their midgut morphology, including shortened microvilli, enlarged vacuoles, thickened peritrophic membranes, and swelling of the basal labyrinth, suggesting water influx. Transcriptome analysis showed that innate immune responses were repressed, genes involved with cell death pathways were largely unchanged, and mitochondria-related genes were strongly upregulated following toxin exposure. Defective mitochondria produced after toxin exposure were likely to contribute to significant levels of oxidative stress, which represent a common physiological response to a range of toxic chemicals. Significant reductions in both mitochondrial aconitase activity and ATP levels in the midgut tissue supported a rapid increase in reactive oxygen species (ROS) following exposure to Cry1Ac. Overall, these findings support the role of water influx, midgut cell swelling, and ROS activity in response to moderate concentrations of Cry1Ac.
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Affiliation(s)
- Biko K Muita
- School of Biological Sciences, University of Adelaide, Adelaide 5005, Australia
| | - Simon W Baxter
- School of BioSciences, University of Melbourne, Melbourne 3010, Australia
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Li Q, Liu XL, Jiang N, Li QY, Song YX, Ke XX, Han H, Luo Q, Guo Q, Luo XY, Chen C. A new prognostic model for RHOV, ABCC2, and CYP4B1 to predict the prognosis and association with immune infiltration of lung adenocarcinoma. J Thorac Dis 2023; 15:1919-1934. [PMID: 37197482 PMCID: PMC10183535 DOI: 10.21037/jtd-23-265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/17/2023] [Indexed: 05/19/2023]
Abstract
Background Lymph node metastasis is one of the important factors affecting the prognosis of lung adenocarcinoma (LUAD) patients. The key molecules in lymph node metastasis have not yet been fully revealed. Therefore, we aimed to construct a prognostic model based on lymph node metastasis-related genes to evaluate the prognosis of LUAD patients. Methods The differentially expressed genes (DEGs) in the process of LUAD metastasis were identified in The Cancer Genome Atlas (TCGA) database, and the biological roles of the DEGs were depicted using Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and a protein-protein interaction (PPI) network. Survival analysis and Cox regression analysis were used to identify the genes related to the prognosis of patients with LUAD, and a nomogram and a prognostic model were constructed. The potential prognostic value, immune escape, and regulatory mechanisms of the prognostic model in LUAD progression were explored through survival analysis and gene set enrichment analysis (GSEA). Results A total of 75 genes were upregulated, and 138 genes were downregulated in tissues of lymph node metastasis. The expression levels of STC1, CYP17A1, RHOV, GUCA2B, TM4SF20, DEFB1, CRHR2, ABCC2, CYP4B1, KRT16, and NTS were revealed as risk factors for a poor prognosis in LUAD patients. High-risk LUAD patients had a poor prognosis in the prognostic model based on RHOV, ABCC2, and CYP4B1. The clinical stage and the risk score were found to be independent risk factors for a poor prognosis in LUAD patients, and the risk score was associated with the tumor purity, T cell, natural killer (NK) cell, and other immune cells. The prognostic model might affect the progression of LUAD using DNA replication, the cell cycle, P53, and other signaling pathways. Conclusions Lymph node metastasis-related genes RHOV, ABCC2, and CYP4B1 are associated with a poor prognosis in LUAD. A prognostic model based on RHOV, ABCC2, and CYP4B1 might predict the prognosis of LUAD patients and be associated with immune infiltration.
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Affiliation(s)
- Qiao Li
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xiao-Li Liu
- Department of Ultrasound, The People’s Hospital of Jianyang City, Jianyang, China
| | - Ni Jiang
- Department of Obstetrics and Gynecology, Women and Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Qian-Yun Li
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China
| | - Yong-Xiang Song
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xi-Xian Ke
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Hao Han
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Qian Luo
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Qiang Guo
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiang-Yu Luo
- Department of Cardiothoracic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Cheng Chen
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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10
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Xiong L, Liu Z, Li J, Yao S, Li Z, Chen X, Shen L, Zhang Z, Li Y, Hou Q, Zhang Y, You M, Yuchi Z, You S. Analysis of the Effect of Plutella xylostella Polycalin and ABCC2 Transporter on Cry1Ac Susceptibility by CRISPR/Cas9-Mediated Knockout. Toxins (Basel) 2023; 15:toxins15040273. [PMID: 37104211 PMCID: PMC10145054 DOI: 10.3390/toxins15040273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/28/2023] Open
Abstract
Many insects, including the Plutella xylostella (L.), have developed varying degrees of resistance to many insecticides, including Bacillus thuringiensis (Bt) toxins, the bioinsecticides derived from Bt. The polycalin protein is one of the potential receptors for Bt toxins, and previous studies have confirmed that the Cry1Ac toxin can bind to the polycalin protein of P. xylostella, but whether polycalin is associated with the resistance of Bt toxins remains controversial. In this study, we compared the midgut of larvae from Cry1Ac-susceptible and -resistant strains, and found that the expression of the Pxpolycalin gene was largely reduced in the midgut of the resistant strains. Moreover, the spatial and temporal expression patterns of Pxpolycalin showed that it was mainly expressed in the larval stage and midgut tissue. However, genetic linkage experiments showed that the Pxpolycalin gene and its transcript level were not linked to Cry1Ac resistance, whereas both the PxABCC2 gene and its transcript levels were linked to Cry1Ac resistance. The larvae fed on a diet containing the Cry1Ac toxin showed no significant change in the expression of the Pxpolycalin gene in a short term. Furthermore, the knockout of polycalin and ATP-binding cassette transporter subfamily C2 (ABCC2) genes separately by CRISPR/Cas9 technology resulted in resistance to decreased susceptibility to Cry1Ac toxin. Our results provide new insights into the potential role of polycalin and ABCC2 proteins in Cry1Ac resistance and the mechanism underlying the resistance of insects to Bt toxins.
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Affiliation(s)
- Lei Xiong
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Zhaoxia Liu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China
| | - Jingge Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Shuyuan Yao
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Zeyun Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Xuanhao Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Lingling Shen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Zhen Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Yongbin Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Qing Hou
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Yuhang Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Minsheng You
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
| | - Zhiguang Yuchi
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Shijun You
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou 350002, China
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Vitale G, Mattiaccio A, Conti A, Berardi S, Vero V, Turco L, Seri M, Morelli MC. Molecular and Clinical Links between Drug-Induced Cholestasis and Familial Intrahepatic Cholestasis. Int J Mol Sci 2023; 24:ijms24065823. [PMID: 36982896 PMCID: PMC10057459 DOI: 10.3390/ijms24065823] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/11/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Idiosyncratic Drug-Induced Liver Injury (iDILI) represents an actual health challenge, accounting for more than 40% of hepatitis cases in adults over 50 years and more than 50% of acute fulminant hepatic failure cases. In addition, approximately 30% of iDILI are cholestatic (drug-induced cholestasis (DIC)). The liver's metabolism and clearance of lipophilic drugs depend on their emission into the bile. Therefore, many medications cause cholestasis through their interaction with hepatic transporters. The main canalicular efflux transport proteins include: 1. the bile salt export pump (BSEP) protein (ABCB11); 2. the multidrug resistance protein-2 (MRP2, ABCC2) regulating the bile salts' independent flow by excretion of glutathione; 3. the multidrug resistance-1 protein (MDR1, ABCB1) that transports organic cations; 4. the multidrug resistance-3 protein (MDR3, ABCB4). Two of the most known proteins involved in bile acids' (BAs) metabolism and transport are BSEP and MDR3. BSEP inhibition by drugs leads to reduced BAs' secretion and their retention within hepatocytes, exiting in cholestasis, while mutations in the ABCB4 gene expose the biliary epithelium to the injurious detergent actions of BAs, thus increasing susceptibility to DIC. Herein, we review the leading molecular pathways behind the DIC, the links with the other clinical forms of familial intrahepatic cholestasis, and, finally, the main cholestasis-inducing drugs.
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Affiliation(s)
- Giovanni Vitale
- Internal Medicine Unit for the Treatment of Severe Organ Failure, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), 20246 Hamburg, Germany
| | - Alessandro Mattiaccio
- U.O. Genetica Medica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - Amalia Conti
- U.O. Genetica Medica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Sonia Berardi
- Internal Medicine Unit for the Treatment of Severe Organ Failure, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), 20246 Hamburg, Germany
| | - Vittoria Vero
- Internal Medicine Unit for the Treatment of Severe Organ Failure, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), 20246 Hamburg, Germany
| | - Laura Turco
- Internal Medicine Unit for the Treatment of Severe Organ Failure, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), 20246 Hamburg, Germany
| | - Marco Seri
- U.O. Genetica Medica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - Maria Cristina Morelli
- Internal Medicine Unit for the Treatment of Severe Organ Failure, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), 20246 Hamburg, Germany
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12
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Anees Siddiqui H, Asif M, Zahra Naqvi R, Shehzad A, Sarwar M, Amin I, Mansoor S. Development of modified Cry1Ac for the control of resistant insect pest of cotton, Pectinophora gossypiella. Gene 2023; 856:147113. [PMID: 36543309 DOI: 10.1016/j.gene.2022.147113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/19/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Cotton has been one of the most important cash crops in Pakistan, but its production is adversely affected by biotic and abiotic stresses. Insect pests such as pink bollworm present a colossal vulnerability to such a financially important commodity. Bt toxins have been widely used to safeguard agricultural plants against notorious insect pests such as cotton bollworm and pink bollworm, and they have proven to be effective in reducing chewing insect pests. However, its efficacy has been challenged due to the development of resistance in insect pests against Bt toxins such as Cry1Ac and this poses a significant risk to the long-term adoption of these Bt crops. Resistance in insect pests against Bt toxin Cry1Ac is developed due to the mutations in the midgut receptors such as cadherin. In this study first 56 amino acids which also includes helix alpha-1 portion from N-terminus of the Cry1Ac were removed and the gene was commercially synthesized following codon optimization. Modified Cry1Ac was used to develop transgenic plants of Nicotiana tabacum and insect bioassays were conducted to check the efficacy of Cry1Ac through leaf bioassays. Cry1Ac, a modified Bt toxin, was produced pET-28a (+), and diet bioassays were performed using purified protein at various doses against Pectinophora gossypiella. Based on the insect mortality and LC50, the Cry1AcM3 form of the modified toxins was shown to be more potent than the other modified versions (Cry1AcM1, Cry1AcM2), with more than 80 % mortality against resistant pink bollworm at 1.25 g/mL and an LC50 of 0.48. The results suggest that modified toxin cry1Ac may be useful in controlling population of pink bollworm resistant against cry1Ac.
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Affiliation(s)
- Hamid Anees Siddiqui
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan; Department of Biotechnology, University of Sialkot, Sialkot, Pakistan
| | - Muhammad Asif
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan
| | - Rubab Zahra Naqvi
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan
| | - Aamir Shehzad
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan
| | - Muhammad Sarwar
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan
| | - Imran Amin
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan
| | - Shahid Mansoor
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Punjab, Pakistan.
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Liu T, Zhao J, Feng JY, Lu Y, Sheps JA, Wang RX, Han J, Ling V, Wang JS. Neonatal Dubin-Johnson Syndrome and its Differentiation from Biliary Atresia. J Clin Transl Hepatol 2023; 11:163-173. [PMID: 36406324 PMCID: PMC9647112 DOI: 10.14218/jcth.2021.00460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/18/2022] [Accepted: 02/22/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND AND AIMS The aim was to determine if liver biochemistry indices can be used as biomarkers to help differentiate patients with neonatal Dubin-Johnson syndrome (nDJS) from those with biliary atresia (BA). METHODS Patients with genetically-confirmed nDJS or cholangiographically confirmed BA were retrospectively enrolled and randomly assigned to discovery or verification cohorts. Their liver chemistries, measured during the neonatal period, were compared. Predictive values were calculated by receiver operating characteristic curve analysis. RESULTS A cohort of 53 nDJS patients was recruited, of whom 13 presented with acholic stools, and 14 underwent diagnostic cholangiography or needle liver biopsy to differentiate from BA. Thirty-five patients in the cohort, with complete biochemical information measured during the neonatal period, were compared with 133 infants with cholangiographically confirmed BA. Total and direct bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bile acids, alkaline phosphatase, and gamma-glutamyl transferase were significantly lower in nDJS than in BA. In the discovery cohort, the areas under the curve for ALT and AST were 0.908 and 0.943, respectively. In the validation cohort, 13/15 patients in the nDJS group were classified as nDJS, and 10/53 in the BA control group were positive (p<0.00001) with an ALT biomarker cutoff value of 75 IU/L. Thirteen of 15 patients were classified as nDJS and none were classified positive in the BA group (13/15 vs. 0/53, p<0.00001) with an AST cutoff of 87 IU/L. CONCLUSIONS Having assembled and investigated the largest cohort of nDJS patients reported to date, we found that nDJS patients could be distinguished from BA patients using the serum AST level as a biomarker. The finding may be clinically useful to spare cholestatic nDJS patients unnecessary invasive procedures.
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Affiliation(s)
- Teng Liu
- The Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University, Shanghai, China
- Correspondence to: Teng Liu and Jian-She Wang, The Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University, NO. 399 Wanyuan Road, Minhang District, Shanghai 201102, China. ORCID: https://orcid.org/0000-0002-0858-2151 (TL), https://orcid.org/0000-0003-0823-586X (JSW). Tel: +86-21-64931171, E-mail: (TL), (JSW)
| | - Jing Zhao
- The Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University, Shanghai, China
| | - Jia-Yan Feng
- The Department of Pathology, Children’s Hospital of Fudan University, Shanghai, China
| | - Yi Lu
- The Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University, Shanghai, China
| | | | - Ren-Xue Wang
- BC Cancer Agency, Vancouver, British Columbia, V5Z 1L3, Canada
| | - Jun Han
- University of Victoria-Genome BC Proteomics Center, University of Victoria, Victoria, British Columbia, V8Z 7X8, Canada
| | - Victor Ling
- BC Cancer Agency, Vancouver, British Columbia, V5Z 1L3, Canada
| | - Jian-She Wang
- The Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Birth Defects, Shanghai, China
- Correspondence to: Teng Liu and Jian-She Wang, The Center for Pediatric Liver Diseases, Children’s Hospital of Fudan University, NO. 399 Wanyuan Road, Minhang District, Shanghai 201102, China. ORCID: https://orcid.org/0000-0002-0858-2151 (TL), https://orcid.org/0000-0003-0823-586X (JSW). Tel: +86-21-64931171, E-mail: (TL), (JSW)
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14
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Park J, Lee KW, Oh SC, Park MY, Lee JM, Hong SY, Hong SK, Choi Y, Yi NJ, Suh KS. Impact of single-nucleotide polymorphisms on tacrolimus pharmacokinetics in liver transplant patients after switching to once-daily dosing. Hepatol Int 2023; 17:262-70. [PMID: 35972639 DOI: 10.1007/s12072-022-10401-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/27/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND The effects of multidrug resistance-1 (MDR1), ABCC2, and P450 oxidoreductase (POR)*28 gene polymorphisms on tacrolimus metabolism following a switch to once-daily dosing have not been elucidated. We investigated the effects of recipient and donor CYP3A5, MDR1, ABCC2, and POR*28 polymorphisms on tacrolimus pharmacokinetics following a switch to once-daily tacrolimus dosing. METHODS Eighty-seven liver transplant recipients who were switched from twice- to once-daily tacrolimus dosing following living-donor liver transplantation and 81 matched donors were genotyped for CYP3A5, MDR1 (1236C>T, 2677G>T/A, and 3435C>T), ABCC2 (-24C>T, 1249G>A, and 3972C>T), and POR*28. Tacrolimus dose-adjusted trough levels (C0/dose) before and after the switch were determined and calculated based on past medical records. Recipients were divided into two groups, one group constituted of 38 patients with a C0/dose decrease of less than 30% following conversion (group 1) and the other constituted of 49 patients with a C0/dose decrease of ≥ 30% (group 2). RESULTS CYP3A5 *1/*3 and *3/*3 were more frequent in recipients in group 1 (60.5% vs. 36.8%), while CYP3A5 *1/*1 was more frequent in group 2 (59.2% vs. 32.7%) (p = 0.016). The proportions of donor ABCC2 1249G>A genotypes AA and AG were higher in group 2 than in group 1 (20.4% vs. 5.3%; p = 0.042). CONCLUSION Recipient CYP3A5 polymorphism and donor ABCC2 1249G>A polymorphism affected tacrolimus pharmacokinetics following the switch to once-daily dosing. Dose adjustment to maintain therapeutic tacrolimus levels following the switch to once-daily dosing should be considered based on polymorphisms in both the recipient and donor.
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15
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Zhao T, Shen H, Zhang HL, Feng J, Liu SM, Wang TT, Li HJ, Yu LH. Association of CYP2C19, CYP3A4 and ABCC2 polymorphisms and voriconazole plasma concentrations in Uygur pediatric patients. Pharmacogenomics 2023; 24:141-151. [PMID: 36718992 DOI: 10.2217/pgs-2022-0159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Aim: To evaluate the association between CYP2C19, CYP3A4 and ABCC2 polymorphisms and voriconazole plasma concentrations in Uygur pediatric patients with allogeneic hematopoietic stem cell transplantation. Materials & methods: High performance liquid chromatography-mass spectrometry was employed to monitor voriconazole concentrations. First-generation sequencing was performed to detect gene polymorphisms. Results: Voriconazole concentrations of normal metabolizers were significantly higher than those of intermediate (p < 0.05) and ultrafast (p < 0.001) metabolizers. Patients with ABCC2 GG and GA genotypes exhibited significantly lower voriconazole concentrations compared with patients with the AA genotype (p < 0.05). Conclusion: These results demonstrate a significant association between voriconazole concentrations and the CYP2C19 phenotype in Uygur pediatric patients with allogeneic hematopoietic stem cell transplantation.
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Affiliation(s)
- Ting Zhao
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Hao Shen
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Hui-Lan Zhang
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Jie Feng
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Si-Ming Liu
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Ting-Ting Wang
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Hong-Jian Li
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
| | - Lu-Hai Yu
- Department of Pharmacy, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China.,Institute of Clinical Pharmacy of Xinjiang Uygur Autonomous Region, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Province, 830001, China
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16
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Abstract
The coordinated movement of organic anions (e.g., drugs, metabolites, signaling molecules, nutrients, antioxidants, gut microbiome products) between tissues and body fluids depends, in large part, on organic anion transporters (OATs) [solute carrier 22 (SLC22)], organic anion transporting polypeptides (OATPs) [solute carrier organic (SLCO)], and multidrug resistance proteins (MRPs) [ATP-binding cassette, subfamily C (ABCC)]. Depending on the range of substrates, transporters in these families can be considered multispecific, oligospecific, or (relatively) monospecific. Systems biology analyses of these transporters in the context of expression patterns reveal they are hubs in networks involved in interorgan and interorganismal communication. The remote sensing and signaling theory explains how the coordinated functions of drug transporters, drug-metabolizing enzymes, and regulatory proteins play a role in optimizing systemic and local levels of important endogenous small molecules. We focus on the role of OATs, OATPs, and MRPs in endogenous metabolism and how their substrates (e.g., bile acids, short chain fatty acids, urate, uremic toxins) mediate interorgan and interorganismal communication and help maintain and restore homeostasis in healthy and disease states.
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Affiliation(s)
- Sanjay K Nigam
- Department of Pediatrics and Medicine (Nephrology), University of California San Diego, La Jolla, California, USA;
| | - Jeffry C Granados
- Department of Bioengineering, University of California San Diego, La Jolla, California, USA
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17
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Chandra F, Tania TF, Nurcahyanti ADR. Bixin and Fuxoxanthin Alone and in Combination with Cisplatin Regulate ABCC1 and ABCC2 Transcription in A549 Lung Cancer Cells. J Pharm Bioallied Sci 2023; 15:15-20. [PMID: 37313537 PMCID: PMC10259734 DOI: 10.4103/jpbs.jpbs_50_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/04/2023] [Accepted: 02/16/2023] [Indexed: 06/15/2023] Open
Abstract
Background The ATP-Binding Cassette (ABC) transporter has long been studied to confer drug resistance in human tumors and play important role in metabolic processes and cellular signaling. The overexpression of ABCB1, ABCC1, ABCC2, ABCC3, and ABCG2 leads to decreased sensitivity of lung cancer to cisplatin. At the transcription level, the expression of ABC transporters is highly regulated and requires the complex interplay of factors involved in differentiation and development, cell survival and apoptosis upon intrinsic and environmental stress. The p53 regulation of drug-resistance genes is also complex yet not well understood. Previously, we demonstrated the synergistic interaction between bixin or fucoxanthin with cisplatin in A549 lung cancer cells. Objectives Current study aims to identify whether carotenoids enhancing therapeutic effect of Cisplatin due to the ability to reverse drug resistance associated proteins, such as ABC transporter and regulating the tumor suppressor corresponding gene, p53. Methods Real-Time Quantitative-Polymerase Chain Reaction (RT-qPCR) was performed to estimate the expression level of ABCC1 and ABCC2, and p53 of A549 cell lines in response to carotenoids alone and in combination with cisplatin. Results and Conclusion The administration of bixin or fucoxanthin decreases the expression of ABCC1 and ABCC2. Both carotenoids, either alone or in combination with cisplatin, upregulated p53 gene expression indicating the mechanism of proliferation inhibition and apoptosis occurs via the p53 caspase-independent pathway.
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Affiliation(s)
- Ferdy Chandra
- Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Teresa F. Tania
- Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Agustina D. R. Nurcahyanti
- Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
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Kim JH, Kang MW, Kim S, Han JW, Jang JW, Choi JY, Yoon SK, Sung PS. Genotype-Phenotype Association in ABCC2 Exon 18 Missense Mutation Leading to Dubin-Johnson Syndrome: A Case Report. Int J Mol Sci 2022; 23:ijms232416168. [PMID: 36555809 PMCID: PMC9781201 DOI: 10.3390/ijms232416168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
We report a case of a patient with Dubin-Johnson syndrome confirmed by a genetic study. A 50-year-old woman who had symptoms of intermittent right upper quadrant abdominal pain was diagnosed with calculous cholecystitis at another institute and was presented to our hospital for a cholecystectomy. She had no history of liver disease, and her physical examination was normal. Abdominal computed tomography showed a gallbladder stone with chronic cholecystitis. During a laparoscopic cholecystectomy for cholecystitis, a smooth, black-colored liver was noted, and a liver biopsy was performed. The biopsy specimen showed coarse, dark brown granules in centrilobular hepatocytes via hematoxylin and eosin staining. We performed a genetic study using the blood samples of the patient. In the adenosine triphosphate-binding cassette subfamily C member 2 (ABCC2) mutation study, a missense mutation in exon 18 was noted. Based on the black-colored liver without nodularity, conjugated hyperbilirubinemia, the liver biopsy results of the coarse pigment in centrilobular hepatocytes, and the ABCC2 mutation, Dubin-Johnson syndrome was diagnosed. The patient was managed with conservative care using hepatotonics. One month after follow-up, total bilirubin and direct bilirubin remained in a similar range. Another follow-up was planned a month later, and the patient maintained her use of hepatotonics.
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Affiliation(s)
- Ji-Hoon Kim
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Min-Woo Kang
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sangmi Kim
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Ji Won Han
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jeong Won Jang
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jong Young Choi
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seung Kew Yoon
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Pil Soo Sung
- The Catholic University Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Correspondence: ; Tel.: +82-2258-7534; Fax: +82-2-3481-4025
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Tomášová A, Tichá A, Dusilová Sulková S, Šafránek R, Moučka P, Chmelařová M, Baranová I, Párová H, Nývltová Z, Štochlová K, Palička V, Pavlíková L, Zadák Z, Hyšpler R. The Relationship of Uremic Toxin Indoxyl Sulfate and Intestinal Elimination Mechanisms in Hemodialysis Patients. Kidney Blood Press Res 2022; 48:28-34. [PMID: 36423594 DOI: 10.1159/000528130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/13/2022] [Indexed: 12/23/2023] Open
Abstract
INTRODUCTION High indoxyl sulfate (IS) concentration is a serious problem for patients with CKD increasing the risk of cardiovascular diseases and CKD progression. Thus, the methods of decreasing the toxin concentrations are highly desired. The study aimed to discover the role of selected intestine-related factors on IS concentration. METHODS We evaluated the impact of ABCG2 and ABCC2 polymorphisms influencing activity and protein intake by normalized protein catabolic rate. Additionally, we examined the relation of IS and uric acid (UA) that can share common elimination transporters. A monocentric, prospective, open cohort pilot study was performed on 108 patients undergoing dialysis treatment. RESULTS The positive effect of residual diuresis on the reduction of IS levels was confirmed (p = 0.005). Also, an increase in IS depending on the dietary protein intake was confirmed (p = 0.040). No significant correlation between ABC gene polymorphisms was observed either, suggesting the negligible role of ABCG2 and ABCC2 in the elimination of IS in small bowel. The significant difference was observed for UA where ABCG2 421C>A (rs72552713) gene polymorphism was higher (505.3 μmol/L) in comparison with a wild-type genotype (360.5 μmol/L). CONCLUSION No evidence of bowel elimination pathway via ABCC2 and ABCG2 transporters was found in renal replacement therapy patients.
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Affiliation(s)
- Adéla Tomášová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Alena Tichá
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Sylvie Dusilová Sulková
- Department of Nephrology, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Roman Šafránek
- Department of Nephrology, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Petr Moučka
- Department of Nephrology, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Marcela Chmelařová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Ivana Baranová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Helena Párová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Zora Nývltová
- Vyzkumny ustav organickych syntez a.s. (VUOS - Analytika), Rybitvi, Czechia
| | - Karolína Štochlová
- Vyzkumny ustav organickych syntez a.s. (VUOS - Analytika), Rybitvi, Czechia
| | - Vladimír Palička
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Ladislava Pavlíková
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Zdeněk Zadák
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
| | - Radomír Hyšpler
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Kralove, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czechia
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Tilen R, Paioni P, Goetschi AN, Goers R, Seibert I, Müller D, Bielicki JA, Berger C, Krämer SD, Meyer zu Schwabedissen HE. Pharmacogenetic Analysis of Voriconazole Treatment in Children. Pharmaceutics 2022; 14:pharmaceutics14061289. [PMID: 35745860 PMCID: PMC9227859 DOI: 10.3390/pharmaceutics14061289] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 11/16/2022] Open
Abstract
Voriconazole is among the first-line antifungal drugs to treat invasive fungal infections in children and known for its pronounced inter- and intraindividual pharmacokinetic variability. Polymorphisms in genes involved in the metabolism and transport of voriconazole are thought to influence serum concentrations and eventually the therapeutic outcome. To investigate the impact of these genetic variants and other covariates on voriconazole trough concentrations, we performed a retrospective data analysis, where we used medication data from 36 children suffering from invasive fungal infections treated with voriconazole. Data were extracted from clinical information systems with the new infrastructure SwissPKcdw, and linear mixed effects modelling was performed using R. Samples from 23 children were available for DNA extraction, from which 12 selected polymorphism were genotyped by real-time PCR. 192 (49.1%) of 391 trough serum concentrations measured were outside the recommended range. Voriconazole trough concentrations were influenced by polymorphisms within the metabolizing enzymes CYP2C19 and CYP3A4, and within the drug transporters ABCC2 and ABCG2, as well as by the co-medications ciprofloxacin, levetiracetam, and propranolol. In order to prescribe an optimal drug dosage, pre-emptive pharmacogenetic testing and careful consideration of co-medications in addition to therapeutic drug monitoring might improve voriconazole treatment outcome of children with invasive fungal infections.
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Affiliation(s)
- Romy Tilen
- Division of Infectious Diseases and Hospital Epidemiology, University Children’s Hospital Zurich, Steinwiesstrasse 75, 8032 Zurich, Switzerland; (P.P.); (C.B.)
- Biopharmacy, Department of Pharmaceutical Sciences, University Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland; (R.G.); (I.S.)
- Correspondence: (R.T.); (H.E.M.z.S.)
| | - Paolo Paioni
- Division of Infectious Diseases and Hospital Epidemiology, University Children’s Hospital Zurich, Steinwiesstrasse 75, 8032 Zurich, Switzerland; (P.P.); (C.B.)
| | - Aljoscha N. Goetschi
- Biopharmacy, Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland; (A.N.G.); (S.D.K.)
| | - Roland Goers
- Biopharmacy, Department of Pharmaceutical Sciences, University Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland; (R.G.); (I.S.)
| | - Isabell Seibert
- Biopharmacy, Department of Pharmaceutical Sciences, University Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland; (R.G.); (I.S.)
| | - Daniel Müller
- Institute of Clinical Chemistry, University Hospital Zurich, Rämistr. 100, 8091 Zurich, Switzerland;
| | - Julia A. Bielicki
- Paediatric Research Centre, University Children’s Hospital Basel, Basel, Spitalstrasse 33, 4056 Basel, Switzerland;
| | - Christoph Berger
- Division of Infectious Diseases and Hospital Epidemiology, University Children’s Hospital Zurich, Steinwiesstrasse 75, 8032 Zurich, Switzerland; (P.P.); (C.B.)
| | - Stefanie D. Krämer
- Biopharmacy, Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland; (A.N.G.); (S.D.K.)
| | - Henriette E. Meyer zu Schwabedissen
- Biopharmacy, Department of Pharmaceutical Sciences, University Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland; (R.G.); (I.S.)
- Correspondence: (R.T.); (H.E.M.z.S.)
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Wang X, Yi XL, Hou CX, Wang XY, Sun X, Zhang ZJ, Qin S, Li MW. Map-based cloning and functional analysis revealed ABCC2 is responsible for Cry1Ac toxin resistance in Bombyx mori. Arch Insect Biochem Physiol 2022; 110:e21886. [PMID: 35307854 DOI: 10.1002/arch.21886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/22/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
Bt toxins are parasporal crystals produced by Bacillus thuringiensis (Bt). They have specific killing activity against various insects and have been widely used to control agricultural pests. However, their widespread use has developed the resistance of many target insects. To maintain the sustainable use of Bt products, the resistance mechanism of insects to Bt toxins must be fully clarified. In this study, Bt-resistant and Bt-susceptible silkworm strains were used to construct genetic populations, and the genetic pattern of silkworm resistance to Cry1Ac toxin was determined. Sequence-tagged site molecular marker technology was used to finely map the resistance gene and to draw a molecular genetic linkage map, and the two closest markers were T1590 and T1581, indicating the resistance gene located in the 155 kb genetic region. After analyzing the sequence of the predicted gene in the genetic region, an ATP binding cassette transporter (ABCC2) was identified as the candidate gene. Molecular modeling and protein-protein docking result showed that a tyrosine insertion in the mutant ABCC2 might be responsible for the interaction between Cry1Ac and ABCC2. Moreover, CRISPR/Cas9-mediated genome editing technology was used to knockout ABCC2 gene. The homozygous mutant ABCC2 silkworm was resistant to Cry1Ac toxin, which indicated ABCC2 is the key gene that controls silkworm resistance to Cry1Ac toxin. The results have laid the foundation for elucidating the molecular resistance mechanism of silkworms to Cry1Ac toxin and could provide a theoretical basis for the biological control of lepidopteran pests.
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Affiliation(s)
- Xin Wang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Xiao-Li Yi
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Cheng-Xiang Hou
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, China
| | - Xue-Yang Wang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, China
| | - Xia Sun
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, China
| | - Zhong-Jie Zhang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
| | - Sheng Qin
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, China
| | - Mu-Wang Li
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, China
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22
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Wang W, Lokman NA, Noye TM, Macpherson AM, Oehler MK, Ricciardelli C. ABCA1 is associated with the development of acquired chemotherapy resistance and predicts poor ovarian cancer outcome. Cancer Drug Resist 2022; 4:485-502. [PMID: 35582032 PMCID: PMC9019266 DOI: 10.20517/cdr.2020.107] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/26/2021] [Accepted: 02/04/2021] [Indexed: 12/17/2022]
Abstract
Aim: This study investigated the ATP binding cassette (ABC) transporter (ABCA1, ABCB1, ABCB3, ABCC2 and ABCG2) expression in high grade serous ovarian cancer (HGSOC) tissues, cell lines and primary cells to determine their potential relationship with acquired chemotherapy resistance and patient outcome. Methods: ABC transporter mRNA and protein expression (ABCA1, ABCB1, ABCB3, ABCC2 and ABCG2) was assessed in publicly available datasets and in a tissue microarray (TMA) cohort of HGSOC at diagnosis, respectively. ABC transporter mRNA expression was also assessed in chemosensitive ovarian cancer cell lines (OVCAR-5 and CaOV3) versus matching cell lines with acquired carboplatin resistance and in primary HGSOC cells from patients with chemosensitive disease at diagnosis (n = 10) as well as patients with acquired chemotherapy resistance at relapse (n = 6). The effects of the ABCA1 inhibitor apabetalone in carboplatin-sensitive and -resistant cell lines were also investigated. Results: High ABCA1 mRNA and protein expression was found to be significantly associated with poor patient outcome. ABCA1 mRNA and protein levels were significantly increased in ovarian cancer cell lines (OVCAR-5 CBPR and CaOV3 CBPR) with acquired carboplatin resistance. ABCA1 mRNA was significantly increased in primary HGSOC cells obtained from patients with acquired chemotherapy resistance. Apabetalone treatment reduced ABCA1 protein expression and increased the sensitivity of both parental and carboplatin-resistant ovarian cancer cells to carboplatin. Conclusion: These results suggest that inhibiting ABCA1 transporter may be useful in overcoming acquired chemotherapy resistance and improving outcome for patients with HGSOC.
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Affiliation(s)
- Wanqi Wang
- Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia
| | - Noor A Lokman
- Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia
| | - Tannith M Noye
- Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia
| | - Anne M Macpherson
- Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia
| | - Martin K Oehler
- Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia.,Department of Gynaecological Oncology, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
| | - Carmela Ricciardelli
- Adelaide Medical School, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia
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Sharma P, Sharma S. In silico screening and analysis of single-nucleotide polymorphic variants of the ABCC2 gene affecting Dubin-Johnson syndrome. Arab J Gastroenterol 2022; 23:172-187. [PMID: 35477852 DOI: 10.1016/j.ajg.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 11/17/2021] [Accepted: 03/23/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND STUDY AIMS Dubin-Johnson syndrome (DJS) is a benevolent genetic disorder of the liver with autosomal inheritance. It is a rare disorder characterized by an increase in conjugated bilirubin and anomaly in coproporphyrin clearance. DJS is caused by deleterious mutations in the ABCC2 gene. A polymorphism in the ABCC2 gene causes malfunctions in its ability to regulate the efflux of different organic anions, such as bilirubin, from hepatocytes to the canaliculi. Multidrug resistance protein 2 (MRP2) encoded by the ABCC2 gene is one of the main regulators of the export of bilirubin to respective sites. ABCC2 gene mutations have widely drawn attention in the pathology of DJS in various populations. PATIENTS AND METHODS The ABCC2 gene was subjected to the National Center for Biotechnology Information (NCBI) database in 2020, and non-synonymous single-nucleotide polymorphisms (nsSNPs) and variants in untranslated regions were studied using different computational servers. SIFT, Protein variation effect analyzer, and PolyPhen-2 were used to retrieve the damaging Single-nucleotide polymorphisms (SNPs); PhD-SNP, SNPs&GO, and Protein Analysis Through Evolutionary Relationships were used to predict the association of nsSNPs with DJS; Mutation3D illustrated the location of variants in the protein; SNAP2, MutPred2, ELASPIC, and HOPE were used to predict the structural and functional effects of these mutations on MRP2; and I-mutant 3.0 and MuPro were used to determine the effects of polymorphism on the function of MRP2. RESULTS In this study, 18,947 SNPs were screened from the NCBI database, followed by a series of refinement of variants using online available servers. We concluded that 41 ABCC2 gene variants are vital etiological candidates for DJS in humans. These 41 variants had highly damaging effects on the MRP2 protein, which may lead to deficient transportation capacity, thereby affecting the efflux of bilirubin across the canalicular membrane. CONCLUSION In silico tools are an alternative approach for predicting the target SNPs. Hence, previously unreported variants can be considered strong etiological candidates for diseases related to MRP2.
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Affiliation(s)
- Parul Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, India
| | - Siddharth Sharma
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, India.
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Fujita K, Motoyama S, Sato Y, Wakita A, Nagaki Y, Minamiya Y, Miura M. Association between ABCC2 polymorphism and hematological toxicity in patients with esophageal cancer receiving platinum plus 5-fluorouracil therapy. Esophagus 2022; 19:146-52. [PMID: 34347217 DOI: 10.1007/s10388-021-00865-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/28/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Platinum agents are taken up into cells by copper transporter (CTR) 1 (gene code: SLC31A1) and are excreted from cells by copper-transporting P-type adenosine triphosphatase (ATP7B) and multidrug resistance-associated protein (MRP) 2 (gene code: ABCC2). In addition, glutathione S transferase (GST) P1 is involved in the metabolism of platinum agents. The present study aimed to determine whether the rate of grade 3-4 hematological toxicity associated with platinum plus 5-fluorouracil (5-FU) therapy in 239 patients with esophageal cancer was affected by the SLC31A1 rs10981694A>C and rs12686377G>T, ATP7B rs9535828A>G, GSTP1 rs1695A>G, and ABCC2 -24C>T polymorphisms. METHODS Chemotherapy consisted of protracted infusion of 5-FU (800 mg/m2/day) on days 1-5 and cisplatin or nedaplatin (80 mg/m2/day) on day 1. RESULTS A total of 82 of 239 patients developed grade 3-4 hematological toxicity after chemotherapy. Univariate analysis showed that ABCC2 -24C/T + T/T genotypes (P = 0.038), radiation therapy (P = 0.013), baseline white blood cell count < 6000/μL (P = 0.003), and baseline neutrophil count < 3900/μL (P = 0.021) were statistically significant predictors of grade 3-4 hematological toxicity. Multivariate analysis revealed that ABCC2 -24C/T + T/T genotypes (P = 0.036), radiation therapy (P = 0.005), and baseline white blood cell count < 6000/μL (P < 0.001) were significant risk factors. CONCLUSIONS We determined that ABCC2 -24C>T is significantly associated with grade 3-4 hematological toxicity after platinum plus 5-FU therapy. These findings might contribute to improved treatment strategies for patients with esophageal cancer.
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Yao X, Liu C, Duan Y, An S, Wei J, Liang G. ABCC2 is a functional receptor of Bacillus thuringiensis Cry1Ca in Spodoptera litura. Int J Biol Macromol 2022; 194:9-16. [PMID: 34861271 DOI: 10.1016/j.ijbiomac.2021.11.174] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 12/12/2022]
Abstract
Spodoptera litura is a serious polyphagous pest in the whole world, which has developed resistance to most conventional insecticides and even some Bacillus thuringiensis (Bt) toxins. Cry1Ca has excellent insecticide activity against S. litura with potential application to control S. litura and delay the development of insect resistance. However, the mode of action of Cry1Ca in S. litura is poorly understood. Here, Cry1Ca-binding proteins were identified from S. litura by using pull down assays and liquid chromatography-tandem mass spectrometry (LC-MS/MS). The results indicated that aminopeptidase-N (APN), ATP binding cassette subfamily C member 2 (ABCC2), polycalin, actin and V-type proton ATPase subunit A may bind with Cry1Ca. Further study confirmed that ABCC2 fragment expressed in vitro can bind to Cry1Ca as demonstrated by Ligand blot and homologous competition experiments. The over-expression of endogenous SlABCC2 in Sf9 cells increased Cry1Ca cytotoxicity. Correspondingly, the vivo loss of function analyses by SlABCC2 small interfering RNAs (siRNAs) in S. litura larvae decreased the toxicity of Cry1Ca to larvae. Altogether, these results show that ABCC2 of S. litura is a functional receptor that is involved in the action mode of Cry1Ca.
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Affiliation(s)
- Xue Yao
- State key Laboratory of Wheat and Maize Crop Science/College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Chen Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, PR China
| | - Yunpeng Duan
- State key Laboratory of Wheat and Maize Crop Science/College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Shiheng An
- State key Laboratory of Wheat and Maize Crop Science/College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Jizhen Wei
- State key Laboratory of Wheat and Maize Crop Science/College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China.
| | - Gemei Liang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100193, PR China.
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Li X, Tan XY, Cui XJ, Yang M, Chen C, Chen XY. Pharmacokinetics of Tenofovir Alafenamide Fumarate and Tenofovir in the Chinese People: Effects of Non-Genetic Factors and Genetic Variations. Pharmgenomics Pers Med 2021; 14:1315-1329. [PMID: 34703277 PMCID: PMC8525415 DOI: 10.2147/pgpm.s329690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/28/2021] [Indexed: 01/05/2023]
Abstract
Background Tenofovir alafenamide fumarate (TAF) was approved for HBV treatment in China in 2018. Despite higher antiviral efficacy and less impact on renal function and bone mineral density, the pharmacokinetic profiles of TAF are highly variable. The objectives of this study were to investigate the pharmacokinetics of TAF in the Chinese population and explore the associations between TAF and genetic polymorphisms and non-genetic factors. Patients and Methods A total of 64 healthy Chinese subjects aged 18~65 years old were planned to enroll. According to the dietary intake status, the subjects were divided into two groups (n = 32 per group). The concentrations of TAF and tenofovir were measured by HPLC-MS/MS, and the single-nucleotide polymorphisms were analyzed by MALDI-TOF MS. Results All the enrolled participants (18–35 years) completed the clinical trial study. Similar to the results reported in other ethnic populations, the pharmacokinetic profiles of TAF and tenofovir were highly variable in the Chinese people, and the HFHC diet can significantly increase the systemic exposure of TAF. We determined both HFHC diet and rs7311358 (SLCO1B3) genotypes were independently associated with TAF AUC0-t, while HFHC diet, age and rs3740066 (ABCC2) variants were predictive of t1/2 of tenofovir (P < 0.05). The subjects with the AA genotype in rs7311358 had significantly higher TAF AUC0-t values (1.15 times) than those with a G allele, and the t1/2 of tenofovir in the rs3740066 TT genotype group was 1.23 times longer than that of CC genotype group. Furthermore, there was a trend of higher TAF AUC and shorter tenofovir t1/2 for the rs2032582 (ABCB1) T allele and rs3742106 (ABCC4) CC variant, respectively, although not statistically significant in the multiple linear regression analysis. Conclusion This study provided new evidence to suggest a critical link between both genetic and non-genetic factors and TAF pharmacokinetics in the Chinese people.
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Affiliation(s)
- Xue Li
- Phase I Clinical Research Laboratory of Shanghai LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Xin-Yi Tan
- Department of Rheumatology of Shanghai LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Xue-Jun Cui
- Institute of Spinal Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Ming Yang
- Phase I Clinical Research Laboratory of Shanghai LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Chao Chen
- Phase I Clinical Research Laboratory of Shanghai LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Xiao-Yun Chen
- Department of Rheumatology of Shanghai LongHua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
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Fricke-Galindo I, Jung-Cook H, Martínez-Juárez IE, Monroy-Jaramillo N, Ortega-Vázquez A, Rojas-Tomé IS, Dorado P, Peñas-Lledó E, Llerena A, López-López M. Relevance of NR1I2 variants on carbamazepine therapy in Mexican Mestizos with epilepsy at a tertiary-care hospital. Pharmacogenomics 2021; 22:983-996. [PMID: 34612084 DOI: 10.2217/pgs-2021-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: We evaluated the potential influence of genetic (CYP3A5, EPHX1, NR1I2, HNF4A, ABCC2, RALBP1, SCN1A, SCN2A and GABRA1) and nongenetic factors on carbamazepine (CBZ) response, adverse drug reactions and CBZ plasma concentrations in 126 Mexican Mestizos (MM) with epilepsy. Subjects & methods: Patients were genotyped for 27 variants using TaqMan® assays. Results: CBZ response was associated with NR1I2 variants and lamotrigine cotreatment. CBZ-induced adverse drug reactions were related to antiepileptic polytherapy and SCN1A rs2298771/rs3812718 haplotype. CBZ plasma concentrations were influenced by NR1I2-rs2276707 and -rs3814058, and by phenytoin cotreatment. CBZ daily dose was also influenced by NR1I2-rs3814055 and EPHX1-rs1051740. Conclusion: Interindividual variability in CBZ treatment was partly explained by NR1I2, EPHX1 and SCN1A variants, as well as antiepileptic cotreatment in MM with epilepsy.
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Affiliation(s)
- Ingrid Fricke-Galindo
- Metropolitan Autonomous University, Campus Xochimilco, Calzada del Hueso 1100, Villa Quietud, 04960, Coyoacán, Mexico City, Mexico
| | - Helgi Jung-Cook
- National Institute of Neurology & Neurosurgery, Manuel Velasco Suárez, Insurgentes Sur 3877, La Fama, 14269, Tlalpan, Mexico City, Mexico.,National Autonomous University of Mexico, Mexico City, Mexico, Av. Universidad 3000, C.U., 04510, Coyoacán, Mexico City, Mexico
| | - Iris E Martínez-Juárez
- National Institute of Neurology & Neurosurgery, Manuel Velasco Suárez, Insurgentes Sur 3877, La Fama, 14269, Tlalpan, Mexico City, Mexico
| | - Nancy Monroy-Jaramillo
- National Institute of Neurology & Neurosurgery, Manuel Velasco Suárez, Insurgentes Sur 3877, La Fama, 14269, Tlalpan, Mexico City, Mexico
| | - Alberto Ortega-Vázquez
- Metropolitan Autonomous University, Campus Xochimilco, Calzada del Hueso 1100, Villa Quietud, 04960, Coyoacán, Mexico City, Mexico
| | - Irma S Rojas-Tomé
- National Institute of Neurology & Neurosurgery, Manuel Velasco Suárez, Insurgentes Sur 3877, La Fama, 14269, Tlalpan, Mexico City, Mexico
| | - Pedro Dorado
- Biosanitary Research Institute, INUBE Extremadura University, Avda. de Elvas, Badajoz, 06006, Spain.,Department of Medical-Surgery Therapeutics, University of Extremadura, Avda. Virgen del Puerto, Plasencia, 10600, Spain
| | - Eva Peñas-Lledó
- Biosanitary Research Institute, INUBE Extremadura University, Avda. de Elvas, Badajoz, 06006, Spain.,Faculty of Medicine, University of Extremadura, Av. de Elvas, s/n, Badajoz, 06006, Spain
| | - Adrián Llerena
- Biosanitary Research Institute, INUBE Extremadura University, Avda. de Elvas, Badajoz, 06006, Spain.,Faculty of Medicine, University of Extremadura, Av. de Elvas, s/n, Badajoz, 06006, Spain.,CICAB Clinical Research Center, Extremadura University Hospital, Campus Universitario, Av. de Elvas, s/n, Badajoz, 06080, Spain
| | - Marisol López-López
- Metropolitan Autonomous University, Campus Xochimilco, Calzada del Hueso 1100, Villa Quietud, 04960, Coyoacán, Mexico City, Mexico
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Perera OP, Little NS, Abdelgaffar H, Jurat-Fuentes JL, Reddy GVP. Genetic Knockouts Indicate That the ABCC2 Protein in the Bollworm Helicoverpa zea Is Not a Major Receptor for the Cry1Ac Insecticidal Protein. Genes (Basel) 2021; 12:1522. [PMID: 34680917 DOI: 10.3390/genes12101522] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 11/17/2022] Open
Abstract
Members of the insect ATP binding cassette transporter subfamily C2 (ABCC2) in several moth species are known as receptors for the Cry1Ac insecticidal protein from Bacillus thuringiensis (Bt). Mutations that abolish the functional domains of ABCC2 are known to cause resistance to Cry1Ac, although the reported levels of resistance vary widely depending on insect species. In this study, the function of the ABCC2 gene as a putative Cry1Ac receptor in Helicoverpa zea, a major pest of over 300 crops, was evaluated using CRISPR/Cas9 to progressively eliminate different functional ABCC2 domains. Results from bioassays with edited insect lines support that mutations in ABCC2 were associated with Cry1Ac resistance ratios (RR) ranging from 7.3- to 39.8-fold. No significant differences in susceptibility to Cry1Ac were detected between H. zea with partial or complete ABCC2 knockout, although the highest levels of tolerance were observed when knocking out half of ABCC2. Based on >500–1000-fold RRs reported in similar studies for closely related moth species, the low RRs observed in H. zea knockouts support that ABCC2 is not a major Cry1Ac receptor in this insect.
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Liu Y, Jin M, Wang L, Wang H, Xia Z, Yang Y, Bravo A, Soberón M, Xiao Y, Liu K. Sf ABCC2 transporter extracellular loops 2 and 4 are responsible for the Cry1Fa insecticidal specificity against Spodoptera frugiperda. Insect Biochem Mol Biol 2021; 135:103608. [PMID: 34119653 DOI: 10.1016/j.ibmb.2021.103608] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/28/2021] [Accepted: 06/06/2021] [Indexed: 06/12/2023]
Abstract
Bacillus thuringiensis (Bt) bacteria produce Cry toxins that kill insect pests. Insect specificity of Cry toxins relies on their binding to larval gut membrane proteins such as cadherin and ATP-binding cassette (ABC) transporter proteins. Mutations in ABC transporters have been implicated in high levels of resistance to Cry toxins in multiple pests. Spodoptera frugiperda is an insect pest susceptible to Cry1Fa and Cry1Ab toxins while Mythimna separata is tolerant to Cry1Fa and less susceptible to Cry1Ab. Here, we analyzed the potential role of ABCC2 in determining the susceptibility of S. frugiperda to Cry1Fa and Cry1Ab, by expressing SfABCC2 or MsABCC2 in Hi5 insect cell line and by the systematic replacements of extracellular loops (ECLs) between these two proteins. Expression of SfABCC2 in Hi5 conferred susceptibility to both Cry1Fa and Cry1Ab, in contrast to the expression of MsABCC2 that mediated low toxicity to Cry1Ab and no toxicity to Cry1Fa in agreement with their larvicidal toxicities. The SfABCC2 and MsABCC2 amino acid sequences showed differential residues among ECL1, ECL2, ECL4 and ECL6 loops, while ECL3 and ECL5 share the same primary sequence. The exchange of ECLs between SfABCC2 and MsABCC2 demonstrated that ECL4 and ECL2 contribute to Cry1Fa toxicity, where ECL4 plays a major role. The medium region (named M2) of ECL4 was identified as the most important region of SfABCC2 involved in Cry1Fa toxicity as shown by point mutations in this region. These findings will be helpful to understand the mechanisms of action of Bt toxins in S. frugiperda.
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Affiliation(s)
- Yuanyuan Liu
- Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan, 430079, PR China
| | - Minghui Jin
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Ling Wang
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertility, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Haixia Wang
- Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan, 430079, PR China
| | - Zhichao Xia
- Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan, 430079, PR China
| | - Yongbo Yang
- Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan, 430079, PR China
| | - Alejandra Bravo
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Apdo. Postal 510-3, Cuernavaca, 62250, Morelos, Mexico
| | - Mario Soberón
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Apdo. Postal 510-3, Cuernavaca, 62250, Morelos, Mexico
| | - Yutao Xiao
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China.
| | - Kaiyu Liu
- Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan, 430079, PR China.
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30
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Duran G, Cruz R, Aguín S, Barros F, Giráldez JM, Bernárdez B, Zarra I, López-López R, Carracedo Á, Lamas MJ. Predictive value of ERCC2, ABCC2 and MMP2 of response and long-term survival in locally advanced head and neck cancer patients treated with chemoradiotherapy. Cancer Chemother Pharmacol 2021. [PMID: 34309735 DOI: 10.1007/s00280-021-04330-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/10/2021] [Indexed: 12/19/2022]
Abstract
PURPOSE Genetic variants in genes involved in the distribution, metabolism, accumulation or repair of lesions are likely to influence the response of drugs used in the treatment of Head and Neck Cancer (HNC). We examine the effect of 36 SNPs on clinical outcomes in patients with locally advanced HNC who were receiving platinum-based chemoradiotherapy (CRT). METHODS These SNPs were genotyped in 110 patients using the iPLEX Gold assay on the MassARRAY method in blood DNA samples and used Kaplan-Meier and Cox regression analyses to compare genotype groups with the survival. RESULTS Two SNPs, rs717620 (ABCC2) and rs12934241 (MMP2) were strongly associated with overall survival (OS) and disease-free survival (DFS). At a median follow-up of 64.4 months, the allele A of rs717620 (ABCC2) had an increased risk of disease progression {hazard ratio [HR] = 1.79, p = 0.0018} and death (HR = 2.0, p = 0.00027). ABCC2 was associated with OS after a Bonferroni adjustment for multiple testing. The MMP2 rs12934241-T allele was associated with an increased risk of worse OS and DFS (p = 0.0098 and p = 0.0015, respectively). One SNP of ABCB1 and three SNPs located in the ERCC2 gene showed an association with response in the subgroup of HNC patients treated with definitive CRT. CONCLUSIONS Our findings highlight the potential usefulness of SNPs in different genes involved in drug metabolism and repair DNA to predict the response and survival to CRT. ABCC2 is a potential predictor of OS in patients with HNC.
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Zhao Q, Cui Y, Zeng C, Ren X, Yu K, Lin S, Zhao Z, Mei S. Association between SNPs and hepatotoxicity in patients with primary central nervous system lymphoma on high-dose methotrexate therapy. J Pharm Pharmacol 2021; 73:1480-1490. [PMID: 34254644 DOI: 10.1093/jpp/rgab099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 06/10/2021] [Indexed: 11/12/2022]
Abstract
OBJECTIVES This study aims to evaluate the association between polymorphisms of methotrexate pathway genes and high-dose methotrexate-related hepatotoxicity in Chinese patients with primary central nervous system lymphoma. METHODS Sixty-five patients in 411 treatment courses were enrolled and their toxicities were evaluated. The association between 30 candidate SNPs from 20 methotrexate pathway genes and high-dose methotrexate-related hepatotoxicity was analysed by PLINK and logistic regression. KEY FINDINGS TYMS 6 bp DI + II (rs151264360; OR, 0.41; 95% CI, 0.25-0.66; P = 0.00029), MTHFD1 1958 GA + AA (rs2236225; OR, 0.55; 95% CI, 0.33-0.91; P = 0.020) and CCND1 870 GA + GG (rs9344; OR, 0.42; 95% CI, 0.24-0.73; P = 0.0024) had less risk of hepatotoxicity compared with their homozygotes (DD, GG and AA, respectively), while ABCC2 intron 29 GA + GG (rs3740065; OR, 3.14; 95% CI, 1.89-5.20; P = 0.00001) was more prevalent in patients with hepatotoxicity than TT. CONCLUSIONS TYMS 6 bp DI + II, MTHFD1 1958 GA + AA, CCND1 870 GA + GG genotypes were associated with a lower probability of hepatotoxicity in patients with primary central nervous system lymphoma on high-dose methotrexate therapy, and ABCC2 intron 29 GA + GG was correlated with increased risk of hepatotoxicity.
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Affiliation(s)
- Qing Zhao
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China.,Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Yong Cui
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Chun Zeng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Xiaohui Ren
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Kefu Yu
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Song Lin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China
| | - Zhigang Zhao
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China.,Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
| | - Shenghui Mei
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing, P.R. China.,Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, P.R. China
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Schlum K, Lamour K, Tandy P, Emrich SJ, de Bortoli CP, Rao T, Viteri Dillon DM, Linares-Ramirez AM, Jurat-Fuentes JL. Genetic Screening to Identify Candidate Resistance Alleles to Cry1F Corn in Fall Armyworm Using Targeted Sequencing. Insects 2021; 12:insects12070618. [PMID: 34357278 PMCID: PMC8303720 DOI: 10.3390/insects12070618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary Monitoring of resistance alleles is critical to the sustainability of transgenic crops producing insecticidal Cry proteins. Highly sensitive and cost-effective DNA-based methods are needed to improve current bioassay-based resistance screening. Our goal was to evaluate the use of targeted sequencing in detecting known and novel candidate resistance alleles to Cry proteins. As a model, we used field-collected fall armyworm (Spodoptera frugiperda) from Puerto Rico, the first location reporting continued practical field-evolved S. frugiperda resistance to corn producing the Cry1F insecticidal protein, and sequenced the SfABCC2 gene previously identified as critical to Cry1F toxicity. Targeted sequencing of SfABCC2 detected a previously reported Cry1F resistance allele and mutations originally identified in populations from Brazil. Importantly, targeted sequencing also identified nonsynonymous and frameshift mutations as novel candidate resistance alleles. These results advocate for the use of targeted sequencing in screening for resistance alleles to Cry proteins and support potential gene flow, including resistance alleles, between S. frugiperda from Brazil and the Caribbean. Abstract Evolution of practical resistance is the main threat to the sustainability of transgenic crops producing insecticidal proteins from Bacillus thuringiensis (Bt crops). Monitoring of resistance to Cry and Vip3A proteins produced by Bt crops is critical to mitigate the development of resistance. Currently, Cry/Vip3A resistance allele monitoring is based on bioassays with larvae from inbreeding field-collected moths. As an alternative, DNA-based monitoring tools should increase sensitivity and reduce overall costs compared to bioassay-based screening methods. Here, we evaluated targeted sequencing as a method allowing detection of known and novel candidate resistance alleles to Cry proteins. As a model, we sequenced a Cry1F receptor gene (SfABCC2) in fall armyworm (Spodoptera frugiperda) moths from Puerto Rico, a location reporting continued practical field resistance to Cry1F-producing corn. Targeted sequencing detected a previously reported Cry1F resistance allele (SfABCC2mut), in addition to a resistance allele originally described in S. frugiperda populations from Brazil. Moreover, targeted sequencing detected mutations in SfABCC2 as novel candidate resistance alleles. These results support further development of targeted sequencing for monitoring resistance to Bt crops and provide unexpected evidence for common resistance alleles in S. frugiperda from Brazil and Puerto Rico.
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Affiliation(s)
- Katrina Schlum
- Genome Science and Technology Graduate Program, University of Tennessee, Knoxville, TN 37996, USA; (K.S.); (K.L.); (S.J.E.)
| | - Kurt Lamour
- Genome Science and Technology Graduate Program, University of Tennessee, Knoxville, TN 37996, USA; (K.S.); (K.L.); (S.J.E.)
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA; (P.T.); (C.P.d.B.); (T.R.)
| | - Peter Tandy
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA; (P.T.); (C.P.d.B.); (T.R.)
| | - Scott J. Emrich
- Genome Science and Technology Graduate Program, University of Tennessee, Knoxville, TN 37996, USA; (K.S.); (K.L.); (S.J.E.)
- Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN 37996, USA
| | - Caroline Placidi de Bortoli
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA; (P.T.); (C.P.d.B.); (T.R.)
| | - Tejas Rao
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA; (P.T.); (C.P.d.B.); (T.R.)
| | - Diego M. Viteri Dillon
- Isabela Research Substation, Department of Agro-Environmental Sciences, University of Puerto Rico, Isabela, PR 00662, USA;
| | - Angela M. Linares-Ramirez
- Lajas Research Substation, Department of Agro-Environmental Sciences, University of Puerto Rico, Lajas, PR 00667, USA;
| | - Juan Luis Jurat-Fuentes
- Genome Science and Technology Graduate Program, University of Tennessee, Knoxville, TN 37996, USA; (K.S.); (K.L.); (S.J.E.)
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA; (P.T.); (C.P.d.B.); (T.R.)
- Correspondence: ; Tel.: +1-(865)-974-5931
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Martin M, Boaventura D, Nauen R. Evaluation of Reference Genes and Expression Level of Genes Potentially Involved in the Mode of Action of Cry1Ac and Cry1F in a Susceptible Reference Strain of Chrysodeixis includens. Insects 2021; 12:598. [PMID: 34209276 DOI: 10.3390/insects12070598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary Soybean looper (a moth species) is a major pest of soybean plants in the American continent and its larvae need to be kept under economic damage thresholds to guarantee sustainable yields. Soybean looper control relies mostly on the use of insecticides and genetically modified crops expressing Bacillus thuringiensis (Bt) insecticidal proteins. Due to the high selection pressure exerted by these control measures, resistance has developed to different insecticides and Bt proteins. Here, we tested the basal sensitivity of a soybean looper laboratory reference strain against two insecticidal proteins and determined the level of expression of potential receptors of these proteins across all (six) larval stages. Furthermore, we identified stable reference genes across all larval stages to normalize gene expression data obtained by quantitative polymerase chain reaction (qPCR). The results presented in this communication are useful to support future studies on insecticide and insecticidal protein resistance in soybean looper. Abstract Soybean looper (SBL), Chrysodeixis includens (Walker), is one of the major lepidopteran pests of soybean in the American continent. SBL control relies mostly on the use of insecticides and genetically modified crops expressing Bacillus thuringiensis (Bt) insecticidal Cry proteins. Due to the high selection pressure exerted by these control measures, resistance has developed to different insecticides and Bt proteins. Nevertheless, studies on the mechanistic background are still scarce. Here, the susceptibility of the laboratory SBL-Benzon strain to the Bt proteins Cry1Ac and Cry1F was determined in diet overlay assays and revealed a greater activity of Cry1Ac than Cry1F, thus confirming results obtained for other sensitive SBL strains. A reference gene study across larval stages with four candidate genes revealed that RPL10 and EF1 were the most stable genes for normalization of gene expression data obtained by RT-qPCR. Finally, the basal expression levels of eight potential Bt protein receptor genes in six larval instars were analyzed, including ATP-binding cassette (ABC) transporters, alkaline phosphatase, aminopeptidases, and cadherin. The results presented here provide fundamental knowledge to support future SBL resistance studies.
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Wang L, Zeng G, Li J, Luo J, Li H, Zhang Z. Association of polymorphism of CYP3A4, ABCB1, ABCC2, ABCG2, NFKB1, POR, and PXR with the concentration of cyclosporin A in allogeneic haematopoietic stem cell transplantation recipients. Xenobiotica 2021; 51:852-858. [PMID: 33974505 DOI: 10.1080/00498254.2021.1928791] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Cyclosporin a (CsA) was characterized by a narrow therapeutic window and high interindividual pharmacokinetic variability. In this study, we aimed to identify the association of CYP3A4, ABCB1, ABCC2, ABCG2, NFKB1, POR, and PXR polymorphisms with CsA concentrations in patients with allogeneic haematopoietic cell transplantation (allo-HSCT) based on the route of administration.A total of 40 allo-HSCT recipients receiving CsA were genotyped for CYP3A4, ABCB1, ABCC2, ABCG2, NFKB1, POR, and PXR polymorphisms. The correlation between polymorphisms and CsA concentration was analysed.The CsA dose-adjusted trough concentration (Cssmin/D) of oral or intravenous administration was significantly different (p < 0.001). For CsA Cssmin/D of intravenous administration, CYP3A4 rs2246709 (p = 0.015), ABCC2 rs717620 (p = 0.024), ABCG2 rs2231142 (p = 0.042), PXR rs3732359 (p = 0.008), PXR rs3814058 (p = 0.028) and PXR rs6785049 (p < 0.001) had a significant effect on CsA Cssmin/D. For CsA Cssmin/D of oral administration, ABCC2 rs717620 (p = 0.009) and ABCG2 rs2231142 (p = 0.011) had a significant effect on CsA Cssmin/D.These results illustrated that the CYP3A4, ABCC2, ABCG2, and PXR genotypes were closely correlated with CsA Cssmin/D, suggesting these SNPs were suitable for determining the appropriate dose of CsA.
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Affiliation(s)
- Linlin Wang
- Department of Pharmacy, Xiangya Hospital, Central South University, Hunan, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Guangting Zeng
- Department of Pharmacy, Xiangya Hospital, Central South University, Hunan, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Jianqiang Li
- Department of Pharmacy, Xiangya Hospital, Central South University, Hunan, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Jia Luo
- Department of Pharmacy, Xiangya Hospital, Central South University, Hunan, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Huilan Li
- Department of Pharmacy, Xiangya Hospital, Central South University, Hunan, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Zanling Zhang
- Department of Pharmacy, Xiangya Hospital, Central South University, Hunan, Changsha, China.,Institute for Rational and Safe Medication Practices, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, Changsha, China
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Yainna S, Nègre N, Silvie PJ, Brévault T, Tay WT, Gordon K, dAlençon E, Walsh T, Nam K. Geographic Monitoring of Insecticide Resistance Mutations in Native and Invasive Populations of the Fall Armyworm. Insects 2021; 12:468. [PMID: 34070167 DOI: 10.3390/insects12050468] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/18/2022]
Abstract
Simple Summary The moth fall armyworm (Spodoptera frugiperda) is a major agricultural pest insect damaging a wide range of crops, especially corn. Field evolved resistance against Bacillus thuringiensis (Bt) toxins and synthetic insecticides has been repeatedly reported. While the fall armyworm is native to the Americas, its biological invasion was first reported from West Africa in 2016. Since then, this pest has been detected across sub-Saharan and North Africa, Asia, and Oceania. Here, we examine the geographical distribution of mutations causing resistance against Bt or synthetic insecticides to test if the invasion was accompanied by the spread of resistance mutations using 177 individuals collected from 12 geographic populations including North and South America, West and East Africa, India, and China. We observed that Bt resistance mutations generated in Puerto Rico or Brazil were found only from their native populations, while invasive populations had higher copy numbers of cytochrome P450 genes and higher proportions of resistance mutations at AChE, which are known to cause resistance against synthetic insecticides. This result explains the susceptibility to Bt insecticides and the resistance against synthetic insecticides in invasive Chinese populations. This information will be helpful in investigating the cause and consequence associated with insecticide resistance. Abstract Field evolved resistance to insecticides is one of the main challenges in pest control. The fall armyworm (FAW) is a lepidopteran pest species causing severe crop losses, especially corn. While native to the Americas, the presence of FAW was confirmed in West Africa in 2016. Since then, the FAW has been detected in over 70 countries covering sub-Saharan Africa, the Middle East, North Africa, South Asia, Southeast Asia, and Oceania. In this study, we tested whether this invasion was accompanied by the spread of resistance mutations from native to invasive areas. We observed that mutations causing Bt resistance at ABCC2 genes were observed only in native populations where the mutations were initially reported. Invasive populations were found to have higher gene numbers of cytochrome P450 genes than native populations and a higher proportion of multiple resistance mutations at acetylcholinesterase genes, supporting strong selective pressure for resistance against synthetic insecticides. This result explains the susceptibility to Bt insecticides and resistance to various synthetic insecticides in Chinese populations. These results highlight the necessity of regular and standardized monitoring of insecticide resistance in invasive populations using both genomic approaches and bioassay experiments.
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Chan KL, Varughese N, Jones PM, Zwick DL, Rajaram V, Lee M, Ramirez CM. A Case of Dubin-Johnson Syndrome Presenting as Neonatal Cholestasis With Paucity of Interlobular Bile Ducts. Pediatr Dev Pathol 2021; 24:154-158. [PMID: 33470920 DOI: 10.1177/1093526620980577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dubin-Johnson syndrome (DJS) is a rare autosomal recessive disorder that typically manifests in young adulthood as jaundice with conjugated hyperbilirubinemia. We report a case presenting as neonatal cholestasis with the unexpected histologic finding of paucity of interlobular bile ducts, a feature that is not typically seen in DJS. The diagnosis was confirmed by absent canalicular multidrug-resistance-associated protein 2 (MRP2) immunohistochemical staining on liver biopsy tissue and molecular genetic testing that demonstrated heterozygous mutations in the ATP-Binding Cassette Subfamily C Member 2 (ABCC2) gene, including a novel missense mutation. This report describes a case of DJS with atypical clinicopathologic findings and suggests that DJS should be considered in patients with neonatal cholestasis and bile duct paucity.
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Affiliation(s)
- Kara L Chan
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Natasha Varughese
- Department of Pediatrics, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Patricia M Jones
- Department of Pathology, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - David L Zwick
- Department of Pathology, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Veena Rajaram
- Department of Pathology, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Michael Lee
- Department of Pediatrics, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
| | - Charina M Ramirez
- Department of Pediatrics, UT Southwestern Medical Center/Children's Medical Center, Dallas, Texas
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Ben Saad A, Bruneau A, Mareux E, Lapalus M, Delaunay JL, Gonzales E, Jacquemin E, Aït-Slimane T, Falguières T. Molecular Regulation of Canalicular ABC Transporters. Int J Mol Sci 2021; 22:2113. [PMID: 33672718 DOI: 10.3390/ijms22042113] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/15/2021] [Accepted: 02/18/2021] [Indexed: 12/17/2022] Open
Abstract
The ATP-binding cassette (ABC) transporters expressed at the canalicular membrane of hepatocytes mediate the secretion of several compounds into the bile canaliculi and therefore play a key role in bile secretion. Among these transporters, ABCB11 secretes bile acids, ABCB4 translocates phosphatidylcholine and ABCG5/G8 is responsible for cholesterol secretion, while ABCB1 and ABCC2 transport a variety of drugs and other compounds. The dysfunction of these transporters leads to severe, rare, evolutionary biliary diseases. The development of new therapies for patients with these diseases requires a deep understanding of the biology of these transporters. In this review, we report the current knowledge regarding the regulation of canalicular ABC transporters' folding, trafficking, membrane stability and function, and we highlight the role of molecular partners in these regulating mechanisms.
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Guidony NS, Scaini JLR, Oliveira MWB, Machado KS, Bastos C, Escarrone AL, Souza MM. ABC proteins activity and cytotoxicity in zebrafish hepatocytes exposed to triclosan. Environ Pollut 2021; 271:116368. [PMID: 33383428 DOI: 10.1016/j.envpol.2020.116368] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/05/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
Chemicals such as triclosan are a concern because of their presence on daily products (soap, deodorant, hand sanitizers …), consequently this compound has an ubiquitous presence in the environment. Little is known about the effect of this bactericide on aquatic life. The aim of this study is to analyze triclosan exposure (24 h) to an in vitro model, zebrafish hepatocytes cell line (ZF-L), if it can be cytotoxic (mitochondrial activity, membrane stability and apoptosis) and if can activate ATP-binding cassette (ABC) proteins (activity, expression and protein/compound affinity). Triclosan was cytotoxic to hepatocytes when exposed to concentrations (1-4 mg/L). The results showed impaired mitochondria function, as well, plasma membrane rupture and an increase of apoptotic cells. We observed an ABC proteins activity inhibition in cells exposed to 0.5 and 1 mg/L. When ABCBs and ABCC2 proteins expression were analyzed, there was an increase of protein expression in both ABC proteins families on cells exposed to 1 mg/L of triclosan. On molecular docking results, triclosan and the fluorescent used as substrate (rhodamine) presented high affinity with all ABC proteins family tested, showing a greater affinity with ABCC2. In conclusion, this study showed that triclosan can be cytotoxic to ZF-L. Molecular docking indicated high affinity between triclosan and the tested pumps.
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Affiliation(s)
- Nicole Soares Guidony
- Programa de Pós-Graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil.
| | - João Luís Rheingantz Scaini
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil; Laboratório de Biologia Computacional, Centro de Ciências Computacionais Universidade Federal do Rio Grande, Avenida Itália, Km 8, 96203-900, Rio Grande, RS, Brazil
| | - Matheus William Bandeira Oliveira
- Laboratório de Biologia Computacional, Centro de Ciências Computacionais Universidade Federal do Rio Grande, Avenida Itália, Km 8, 96203-900, Rio Grande, RS, Brazil
| | - Karina Santos Machado
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil; Laboratório de Biologia Computacional, Centro de Ciências Computacionais Universidade Federal do Rio Grande, Avenida Itália, Km 8, 96203-900, Rio Grande, RS, Brazil
| | - Cláudio Bastos
- Programa de Pós-Graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil
| | - Ana Laura Escarrone
- Programa de Pós-Graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil
| | - Marta Marques Souza
- Programa de Pós-Graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Av Itália km 8, 96203-900, Rio Grande, RS, Brazil
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Zhao S, Jiang D, Wang F, Yang Y, Tabashnik BE, Wu Y. Independent and Synergistic Effects of Knocking out Two ABC Transporter Genes on Resistance to Bacillus thuringiensis Toxins Cry1Ac and Cry1Fa in Diamondback Moth. Toxins (Basel) 2020; 13:9. [PMID: 33374143 DOI: 10.3390/toxins13010009] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/14/2022] Open
Abstract
Insecticidal proteins from Bacillus thuringiensis (Bt) are used widely in sprays and transgenic crops to control insect pests. However, evolution of resistance by pests can reduce the efficacy of Bt toxins. Here we analyzed resistance to Bt toxins Cry1Ac and Cry1Fa in the diamondback moth (Plutella xylostella), one of the world's most destructive pests of vegetable crops. We used CRISPR/Cas9 gene editing to create strains with knockouts of the ATP-binding cassette (ABC) transporter genes PxABCC2, PxABCC3, or both. Bioassay results show that knocking out either gene alone caused at most 2.9-fold resistance but knocking out both caused >10,320-fold resistance to Cry1Ac and 380-fold resistance to Cry1Fa. Cry1Ac resistance in the double knockout strain was recessive and genetically linked with the PxABCC2/PxABCC3 loci. The results provide insight into the mechanism of cross-resistance to Cry1Fa in diamondback moth. They also confirm previous work with this pest showing that mutations disrupting both genes cause higher resistance to Cry1Ac than mutations affecting either PxABCC2 or PxABCC3 alone. Together with previous work, the results here highlight the value of using single and multiple gene knockouts to better understand the independent and synergistic effects of putative Bt toxin receptors on resistance to Bt toxins.
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Chen Y, Zhou H, Yang S, Su D. Increased ABCC2 expression predicts cisplatin resistance in non-small cell lung cancer. Cell Biochem Funct 2020; 39:277-286. [PMID: 32815556 PMCID: PMC7983913 DOI: 10.1002/cbf.3577] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/26/2020] [Accepted: 07/05/2020] [Indexed: 12/23/2022]
Abstract
Long-term use of platinum-based drugs can cause non-small cell lung cancer (NSCLC) to develop extremely strong drug resistance. Increasing the drug dosage does not have better treatment effects and could lead to serious complications. High levels of drug resistance are considered to be characteristic of human tumours and are usually mediated by genes related to multidrug resistance. Multidrug resistance-associated protein 2 (ABCC2), an ATP-binding cassette multidrug resistance transporter, was found to be overexpressed in various human cancers. In this study, we found that ABCC2 was also upregulated in cisplatin (DDP)-resistant A549 cells (A549/DDP). Functional studies demonstrated that ABCC2 knockdown reversed DDP resistance and promoted G1 phase arrest in A549/DDP cells, and PARP and caspase-3 were activated in A549/DDP cells following ABCC2 knockdown. In vivo, ABCC2 knockdown enhanced the cytotoxicity of DDP to subcutaneous A549 tumours. Together, these results suggest that ABCC2 may be a potential therapeutic strategy for overcoming DDP resistance in NSCLC patients. SIGNIFICANCE OF THE STUDY: In this study, we investigated the role of ABCC2 in cisplatin resistance of NSCLC cells. Our data show that ABCC2 expression was associated with resistance to cisplatin and that knockdown ABCC2 could reverse cisplatin resistance in NSCLC cells. Taken together, our study suggests that reducing the expression of ABCC2 could become an important strategy for enhancing the sensitivity of NSCLC cells to cisplatin.
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Affiliation(s)
- Yun Chen
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Hongying Zhou
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Sifu Yang
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Dan Su
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
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Kim KY, Kim TH, Seong MW, Park SS, Moon JS, Ko JS. Mutation spectrum and biochemical features in infants with neonatal Dubin-Johnson syndrome. BMC Pediatr 2020; 20:369. [PMID: 32758197 PMCID: PMC7404915 DOI: 10.1186/s12887-020-02260-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 07/27/2020] [Indexed: 01/06/2023] Open
Abstract
Background Dubin-Johnson syndrome (DJS) is an autosomal recessive disorder presenting as isolated direct hyperbilirubinemia.DJS is rarely diagnosed in the neonatal period. The purpose of this study was to clarify the clinical features of neonatal DJS and to analyze the genetic mutation of adenosine triphosphate-binding cassette subfamily C member 2 (ABCC2). Methods From 2013 to 2018, 135 infants with neonatal cholestasis at Seoul National University Hospital were enrolled. Genetic analysis was performed by neonatal cholestasis gene panel. To clarify the characteristics of neonatal DJS, the clinical and laboratory results of 6 DJS infants and 129 infants with neonatal cholestasis from other causes were compared. Results A total of 8 different ABCC2 variants were identified among the 12 alleles of DJS. The most common variant was p.Arg768Trp (33.4%), followed by p.Arg100Ter (16.8%). Three novel variants were identified (p.Gly693Glu, p.Thr394Arg, and p.Asn718Ser). Aspartate transaminase (AST) and alanine transaminase (ALT) levels were significantly lower in infants with DJS than in infants with neonatal cholestasis from other causes. Direct bilirubin and total bilirubin were significantly higher in the infants with DJS. Conclusions We found three novel variants in 6 Korean infants with DJS. When AST and ALT levels are normal in infants with neonatal cholestasis, genetic analysis of ABCC2 permits an accurate diagnosis.
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Affiliation(s)
- Kwang Yeon Kim
- Department of Pediatrics, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, 110-769, Seoul, Korea
| | - Tae Hyeong Kim
- Department of Pediatrics, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, 110-769, Seoul, Korea
| | - Moon-Woo Seong
- Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Sup Park
- Laboratory Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jin Soo Moon
- Department of Pediatrics, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, 110-769, Seoul, Korea
| | - Jae Sung Ko
- Department of Pediatrics, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-Gu, 110-769, Seoul, Korea.
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Wang X, Li M, Peng L, Tang N. SOD2 promotes the expression of ABCC2 through lncRNA CLCA3p and improves the detoxification capability of liver cells. Toxicol Lett 2020; 327:9-18. [PMID: 32201199 DOI: 10.1016/j.toxlet.2020.03.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 12/17/2022]
Abstract
Superoxide dismutase 2 (SOD2) is a key enzyme for scavenging reactive oxygen species produced by mitochondria, which plays an important role in maintaining cellular homeostasis. However, its effects on the detoxification capability of liver cells have not been reported. In this study, we found that change in SOD2 expression affects the proliferation of liver cells. Genome-wide microarray analysis showed that SOD2 positively regulates the drug transporter ABCC2, and co-expression analysis suggested that lncRNA CLCA3P participates in the process. Further experiments showed that SOD2 can promote the expression of CLCA3P, which increases the transcription of ABCC2 by interacting with the transcription factor IRF1. By increasing ABCC2 expression SOD2 facilitates drugs efflux of liver cells and thus promotes their survival under a drug-toxic environment. This study elucidates the improvement of the detoxification of liver cells by a regulatory axis, SOD2-CLCA3P-IRF1-ABCC2, and provides novel insight into the modification of human liver cells that can be applied to bioartificial liver system or the study of SOD2 in drug metabolism.
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Affiliation(s)
- Xiaoqian Wang
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Man Li
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Lirong Peng
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Nanhong Tang
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, China; Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Research Center for Molecular Medicine, Fujian Medical University, Fuzhou, China.
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Huang J, Xu Y, Zuo Y, Yang Y, Tabashnik BE, Wu Y. Evaluation of five candidate receptors for three Bt toxins in the beet armyworm using CRISPR-mediated gene knockouts. Insect Biochem Mol Biol 2020; 121:103361. [PMID: 32199887 DOI: 10.1016/j.ibmb.2020.103361] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/06/2020] [Accepted: 03/15/2020] [Indexed: 05/29/2023]
Abstract
Insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) can provide safe and effective control of some major pests, but evolution of resistance by pests diminishes these benefits. Better understanding of the genetics and mechanisms of resistance is urgently needed to improve methods for monitoring, managing, and countering pest resistance to Bt toxins. Here we used CRISPR-mediated knockouts to evaluate the role of five genes encoding candidate Bt toxin receptors in Spodoptera exigua (beet armyworm), a devastating pest of vegetable, field and flower crops. We compared susceptibility to Bt toxins Cry1Ac, Cry1Fa, and Cry1Ca between the parent susceptible strain and each of five strains homozygous for the knockout of one of the candidate genes (SeAPN1, SeCad1, SeABCC1, SeABCC2 or SeABCC3). The results from the 15 pairwise comparisons reveal that SeABCC2 has a major role and SeCad1 a minor role in mediating toxicity of Cry1Ac and Cry1Fa. SeABCC2 also has a minor role in toxicity of Cry1Ca. In addition, the results imply little or no role for the other three candidate receptors in toxicity of Cry1Ac or Cry1Fa; or for the four candidate receptors other than SeABCC2 in toxicity of Cry1Ca.
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Affiliation(s)
- Jianlei Huang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yanjun Xu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yayun Zuo
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yihua Yang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Bruce E Tabashnik
- Department of Entomology, University of Arizona, Tucson, AZ, 85721, USA.
| | - Yidong Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
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Xun T, Lin Z, Zhan X, Song S, Mo L, Feng H, Yang Q, Guo D, Yang X. Advanced oxidation protein products upregulate efflux transporter expression and activity through activation of the Nrf-2-mediated signaling pathway in vitro and in vivo. Eur J Pharm Sci 2020; 149:105342. [PMID: 32315774 DOI: 10.1016/j.ejps.2020.105342] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 04/05/2020] [Accepted: 04/05/2020] [Indexed: 12/18/2022]
Abstract
Clinical and benchtop studies suggest that chronic kidney disease (CKD) alters both renal and nonrenal clearance of drugs. Although studies have documented that the accumulating uremic toxins in the body under CKD conditions are humoral factors that alter the expression and/or activity of drug transporters, the specific process is poorly understood. In this study, we found that advanced oxidation protein products (AOPPs), which are a modified protein uremic toxin, could upregulate efflux transporters, including P-glycoprotein (ABCB1), multi-drug resistance-associated protein 2 (ABCC2) and breast cancer resistance protein (ABCG2) expression in CKD rat models and in HepG2 cells. Our research shows that renal function decline was associated with the accumulation of AOPPs in serum and the upregulation of efflux transporters in the liver in two rat models of CKD. In HepG2 cells, AOPPs significantly increased the expression of efflux transporters in a dose- and time-dependent manner and upregulated the mRNA expression, protein expression and activity of efflux transporters, but bovine serum albumin (BSA), a synthetic precursor of AOPPs, had no effect. This effect correlated with AOPPs activation of the nuclear factor E2-related factor 2 (Nrf-2)-mediated signaling pathway. Further investigation of the regulation of Nrf-2 by AOPPs revealed that ML385 and siNrf-2 abolished the upregulatory effects of AOPPs. These findings suggest that AOPPs upregulate ABCB1, ABCG2 and ABCC2 through Nrf-2 signaling pathways. Protein uremic toxins, such as AOPPs, may modify the nonrenal clearance of drugs in patients with CKD through effects on drug transporters.
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Affiliation(s)
- Tianrong Xun
- Department of Pharmacy, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhufen Lin
- Department of Pharmacy, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China
| | - Xia Zhan
- Department of Pharmacy, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Shaolian Song
- Department of Pharmacy, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China
| | - Liqian Mo
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Haixing Feng
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qin Yang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Dan Guo
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Xixiao Yang
- Department of Pharmacy, Shenzhen Hospital, Southern Medical University, Shenzhen 518100, China; School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Wang X, Xu Y, Huang J, Jin W, Yang Y, Wu Y. CRISPR-Mediated Knockout of the ABCC2 Gene in Ostrinia furnacalis Confers High-Level Resistance to the Bacillus thuringiensis Cry1Fa Toxin. Toxins (Basel) 2020; 12:toxins12040246. [PMID: 32290427 PMCID: PMC7232378 DOI: 10.3390/toxins12040246] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 12/28/2022] Open
Abstract
The adoption of transgenic crops expressing Bacillus thuringiensis (Bt) insecticidal crystalline (Cry) proteins has reduced insecticide application, increased yields, and contributed to food safety worldwide. However, the efficacy of transgenic Bt crops is put at risk by the adaptive resistance evolution of target pests. Previous studies indicate that resistance to Bacillus thuringiensis Cry1A and Cry1F toxins was genetically linked with mutations of ATP-binding cassette (ABC) transporter subfamily C gene ABCC2 in at least seven lepidopteran insects. Several strains selected in the laboratory of the Asian corn borer, Ostrinia furnacalis, a destructive pest of corn in Asian Western Pacific countries, developed high levels of resistance to Cry1A and Cry1F toxins. The causality between the O. furnacalisABCC2 (OfABCC2) gene and resistance to Cry1A and Cry1F toxins remains unknown. Here, we successfully generated a homozygous strain (OfC2-KO) of O. furnacalis with an 8-bp deletion mutation of ABCC2 by the CRISPR/Cas9 approach. The 8-bp deletion mutation results in a frame shift in the open reading frame of transcripts, which produced a predicted protein truncated in the TM4-TM5 loop region. The knockout strain OfC2-KO showed much more than a 300-fold resistance to Cry1Fa, and low levels of resistance to Cry1Ab and Cry1Ac (<10-fold), but no significant effects on the toxicities of Cry1Aa and two chemical insecticides (abamectin and chlorantraniliprole), compared to the background NJ-S strain. Furthermore, we found that the Cry1Fa resistance was autosomal, recessive, and significantly linked with the 8-bp deletion mutation of OfABCC2 in the OfC2-KO strain. In conclusion, in vivo functional investigation demonstrates the causality of the OfABCC2 truncating mutation with high-level resistance to the Cry1Fa toxin in O. furnacalis. Our results suggest that the OfABCC2 protein might be a functional receptor for Cry1Fa and reinforces the association of this gene to the mode of action of the Cry1Fa toxin.
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Affiliation(s)
| | | | | | | | | | - Yidong Wu
- Correspondence: ; Tel.: +86-25-8439-6062
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Razali RH, Noorizhab MNF, Jamari H, James RJ, Teh KH, Ibrahim HM, Teh LK, Salleh MZ. Association of ABCC2 with levels and toxicity of methotrexate in Malaysian Childhood Acute Lymphoblastic Leukemia (ALL). Pediatr Hematol Oncol 2020; 37:185-197. [PMID: 31870219 DOI: 10.1080/08880018.2019.1705949] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Studies had shown that genetic polymorphism plays a significant role in the pharmacokinetics and pharmacodynamics variation of high dose methotrexate (MTX), 5000 mg/m2 regimen. The objective of this study was to investigate the genetic variations associated with the serum level and toxicity of MTX in Malaysian children with acute lymphoblastic leukemia (ALL). Thirty-eight patients were genotyped for rs717620 (ABCC2), rs4948496 (ARID5B), rs1801133 (MTHFR) and rs4149056 (SLCO1B1). Serum levels of MTX at 48 h post 24 h of intravenous infusion were analyzed by high-performance liquid chromatography-mass spectrometry. The ABCC2 genotype was significantly associated with the serum levels of MTX at 48 h after treatment (p = 0.017). Patients with CT and TT of rs717620 (ABCC2) and TC and CC of rs4948496 (ARID5B) were significantly associated with leukopenia grade I-IV (Fisher Exact Test; p = 0.03 and 0.02, respectively). The three most common MTX related toxicities were leukopenia (60.5%), increased alanine aminotransferase enzyme (47.4%), and thrombocytopenia (47.4%). Our results demonstrate that by prescreening of patients for ABCC2 and ARID5B associated with the serum levels and adverse effects of MTX would identify patients at risk and therefore help a pediatric oncologist to personalize chemotherapy drugs for precision health.
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Affiliation(s)
- Rizal Husaini Razali
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Selangor, Malaysia.,Faculty of Pharmacy Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Selangor, Malaysia.,Pharmaceutical Services Programme, Ministry of Health, Petaling Jaya, Malaysia
| | - Mohd Nur Fakhruzzaman Noorizhab
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Selangor, Malaysia.,Faculty of Pharmacy Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Selangor, Malaysia
| | - Hisyam Jamari
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Selangor, Malaysia
| | - Richard Johari James
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Selangor, Malaysia.,Faculty of Pharmacy Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Selangor, Malaysia
| | - Kok Hoi Teh
- Paediatric Haematology and Oncology Unit, Women & Children's Hospital, Kuala Lumpur, Ministry of Health Malaysia
| | - Hishamshah Mohd Ibrahim
- Paediatric Haematology and Oncology Unit, Women & Children's Hospital, Kuala Lumpur, Ministry of Health Malaysia
| | - Lay Kek Teh
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Selangor, Malaysia.,Faculty of Pharmacy Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Selangor, Malaysia
| | - Mohd Zaki Salleh
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Selangor, Malaysia.,Faculty of Pharmacy Universiti Teknologi MARA Cawangan Selangor, Kampus Puncak Alam, Selangor, Malaysia
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Järvinen E, Kidron H, Finel M. Human efflux transport of testosterone, epitestosterone and other androgen glucuronides. J Steroid Biochem Mol Biol 2020; 197:105518. [PMID: 31704245 DOI: 10.1016/j.jsbmb.2019.105518] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 01/01/2023]
Abstract
Several drug-metabolizing enzymes are known to control androgen homeostasis in humans. UDP-glucuronosyltransferases convert androgens to glucuronide conjugates in the liver and intestine, which enables subsequent elimination of these conjugated androgens via urine. The most important androgen is testosterone, while others are the testosterone metabolites androsterone and etiocholanolone, and the testosterone precursor dehydroepiandrosterone. Epitestosterone is another endogenous androgen, which is included as a crucial marker in urine doping tests. Since glucuronide conjugates are hydrophilic, efflux transporters mediate their excretion from tissues. In this study, we employed the membrane vesicle assay to identify the efflux transporters for glucuronides of androsterone, dehydroepiandrosterone, epitestosterone, etiocholanolone and testosterone. The human hepatic and intestinal transporters MRP2 (ABCC2), MRP3 (ABCC3), MRP4 (ABCC4), BCRP (ABCG2) and MDR1 (ABCB1) were studied in vitro. Of these transporters, only MRP2 and MRP3 transported the androgen glucuronides investigated. In kinetic analyses, MRP3 transported glucuronides of androsterone, epitestosterone and etiocholanolone at low Km values, between 0.4 and 4 μM, while the Km values for glucuronides of testosterone and dehydroepiandrosterone were 14 and 51 μM, respectively. MRP2 transported the glucuronides at lower affinity, as indicated by Km values over 100 μM. Interestingly, the MRP2-mediated transport of androsterone and epitestosterone glucuronides was best described by sigmoidal kinetics. The inability of BCRP to transport any of the androgen glucuronides investigated is drastically different from its highly active transport of several estrogen conjugates. Our results explain the transporter-mediated disposition of androgen glucuronides in humans, and shed light on differences between the human efflux transporters MRP2, MRP3, MRP4, BCRP and MDR1.
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Affiliation(s)
- Erkka Järvinen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Finland.
| | - Heidi Kidron
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Finland
| | - Moshe Finel
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Finland
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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 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Lian G, Yuan J, Gao Y. In vitro Transport Ability of ABCC2 (G1249A) Polymorphic Variant Towards Anticancer Drugs. Onco Targets Ther 2020; 13:1413-1419. [PMID: 32110040 PMCID: PMC7035141 DOI: 10.2147/ott.s207613] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/01/2019] [Indexed: 11/23/2022] Open
Abstract
Objective Multidrug resistance-associated protein 2 (MRP2), encoded by ABCC2 gene, is involved in the efflux of certain anticancer drugs. Here we observed whether the ABCC2 (G1249A) polymorphism impacts the transport abilities of MRP2-dependent paclitaxel, docetaxel, and doxorubicin in recombinant LLC-PK1 cell lines. Methods LLC-PK1 cell lines transfected with ABCC21249G wild-type and ABCC21249A variant alleles were used to evaluate the sensitivity, intracellular accumulation, and transmembrane transport of paclitaxel, docetaxel, and doxorubicin. Results The recombinant ABCC21249A variant cell line showed higher IC50 values for paclitaxel and doxorubicin than ABCC21249G wild-type cell system (p<0.01). Intracellular accumulations of paclitaxel and doxorubicin in cells transfected with ABCC21249A variant allele were significantly decreased compared to cells transfected with ABCC21249G wild-type allele (p<0.01). The efflux ratios of paclitaxel and doxorubicin across ABCC21249A cell line were significantly increased compared with ABCC21249G cell system (p<0.01). However, ABCC2 (G1249A) polymorphism had no effect on the transport activity of MRP2-mediated docetaxel. Conclusion Our results indicate that ABCC2 (G1249A) polymorphism affects the transport activities of MRP2-dependent paclitaxel and doxorubicin, resulting in greater efflux of these anticancer drugs.
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Affiliation(s)
- Guo Lian
- Department of Pharmacy, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441021, People's Republic of China
| | - Jia Yuan
- Department of Oncology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Ats and Science, Xiangyang, Hubei 441021, People's Republic of China
| | - Yuan Gao
- Department of Pharmacy, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441021, People's Republic of China
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Le MT, Phan TV, Tran-Nguyen VK, Tran TD, Thai KM. Prediction model of human ABCC2/MRP2 efflux pump inhibitors: a QSAR study. Mol Divers 2021; 25:741-51. [PMID: 32048150 DOI: 10.1007/s11030-020-10047-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 02/03/2020] [Indexed: 10/25/2022]
Abstract
The overexpression of ABCC2/MRP2, an ATP-binding cassette transporter, contributes to multidrug resistance in cancer cells. In this study, a quantitative structure-activity relationship (QSAR) analysis on ABCC2 inhibitors has been carried out, aiming to establish a computational prediction model for ABCC2 modulators. Seven classification models and two regression models were built by SONNIA 4.2, and two other regression models were built by MOE 2008.10 based on a data set comprising 372 compounds collected from 16 relevant publications. The CPG-C iABCC2 model for classifying ABCC2 inhibitors has total accuracy of 0.88 and Matthews correlation coefficient MCC = 0.75. The CPG-C iEG model for classifying ABCC2 inhibitors (substrate EG: β-estradiol 17-β-D-glucuronide) has total accuracy of 0.91 and MCC = 0.82. The regression model PLS EG-IC50 for predicting ABCC2 inhibitors (substrate EG) gave root-mean-square error RMSE = 0.26, Q2 = 0.73 and [Formula: see text]. The regression model PLS CDCF-IC50 for predicting ABCC2 inhibitors [substrate CDCF: 5(6)-carboxy-2',7'-dichlorofluorescein] gave RMSE = 0.31, Q2 = 0.74 and [Formula: see text]. Four 2D-QSAR models were applied to 1661 compounds, with results indicating 369 compounds having the ability to reverse the efflux of both EG and CDCF by ABCC2, 152 among them having IC50 < 100 µM.
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