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Qin Y, Han S, Yu Y, Qi D, Ran M, Yang M, Liu Y, Li Y, Lu L, Liu Y, Li Y. Lenvatinib in hepatocellular carcinoma: Resistance mechanisms and strategies for improved efficacy. Liver Int 2024; 44:1808-1831. [PMID: 38700443 DOI: 10.1111/liv.15953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/10/2024] [Accepted: 04/15/2024] [Indexed: 05/05/2024]
Abstract
Hepatocellular carcinoma (HCC), one of the most prevalent and destructive causes of cancer-related deaths worldwide, approximately 70% of patients with HCC exhibit advanced disease at diagnosis, limiting the potential for radical treatment. For such patients, lenvatinib, a long-awaited alternative to sorafenib for first-line targeted therapy, has become a key treatment. Unfortunately, despite some progress, the prognosis for advanced HCC remains poor because of drug resistance development. However, the molecular mechanisms underlying lenvatinib resistance and ways to relief drug resistance in HCC are largely unknown and lack of systematic summary; thus, this review not only aims to explore factors contributing to lenvatinib resistance in HCC, but more importantly, summary potential methods to conquer or mitigate the resistance. The results suggest that abnormal activation of pathways, drug transport, epigenetics, tumour microenvironment, cancer stem cells, regulated cell death, epithelial-mesenchymal transition, and other mechanisms are involved in the development of lenvatinib resistance in HCC and subsequent HCC progression. To improve the therapeutic outcomes of lenvatinib, inhibiting acquired resistance, combined therapies, and nano-delivery carriers may be possible approaches.
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Affiliation(s)
- Yongqing Qin
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Shisong Han
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Yahan Yu
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Ding Qi
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Mengnan Ran
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
- School of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Mingqi Yang
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Yanyan Liu
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Yunyi Li
- Department of Nephrology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Ligong Lu
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Yu Liu
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
| | - Yong Li
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai Clinical Medical College of Jinan University (Zhuhai People's Hospital), Zhuhai, Guangdong, China
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Guo X, He K, Li M, Zhang Y, Jiang J, Qian L, Gao X, Zhang C, Liu S. Comparative transcriptome analysis of Fusarium graminearum challenged with distinct fungicides and functional analysis of FgICL gene. Genomics 2024; 116:110869. [PMID: 38797456 DOI: 10.1016/j.ygeno.2024.110869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/14/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Fusarium graminearum is an economically important phytopathogenic fungus. Chemical control remains the dominant approach to managing this plant pathogen. In the present study, we performed a comparative transcriptome analysis to understand the effects of four commercially used fungicides on F. graminearum. The results revealed a significant number of differentially expressed genes related to carbohydrate, amino acid, and lipid metabolism, particularly in the carbendazim and phenamacril groups. Central carbon pathways, including the TCA and glyoxylate cycles, were found to play crucial roles across all treatments except tebuconazole. Weighted gene co-expression network analysis reinforced the pivotal role of central carbon pathways based on identified hub genes. Additionally, critical candidates associated with ATP-binding cassette transporters, heat shock proteins, and chitin synthases were identified. The crucial functions of the isocitrate lyase in F. graminearum were also validated. Overall, the study provided comprehensive insights into the mechanisms of how F. graminearum responds to fungicide stress.
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Affiliation(s)
- Xuhao Guo
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Kai He
- National Animal Protozoa Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Mengyu Li
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Yuan Zhang
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Jia Jiang
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Le Qian
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Xuheng Gao
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China
| | - Chengqi Zhang
- College of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Shengming Liu
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China; Henan Engineering Technology Research Center of Green Plant Protection, Luoyang 471023, China.
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Winski CJ, Stuckey PV, Marrufo AM, Ross RL, Agyei G, Chapman S, Santiago-Tirado FH. Lack of an atypical PDR transporter generates an immunogenic Cryptococcus neoformans strain that drives a dysregulated and lethal immune response in murine lungs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.17.599354. [PMID: 38948814 PMCID: PMC11212882 DOI: 10.1101/2024.06.17.599354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Cryptococcus neoformans is an opportunistic fungal pathogen responsible for >150,000 deaths every year with a mortality rate as high as 81%. This high medical burden is due, in part, to an incomplete understanding of its pathogenesis. In a previous study, we identified a cryptococcal atypical pleiotropic drug resistance (PDR) transporter, PDR6, that regulated antifungal resistance and host interactions. Here, we follow-up on the role of PDR6 in cryptococcal virulence. In vivo, mice infected with the pdr6Δ strain display altered symptomatology and disease progression. Specifically, we observed a significant increase in the innate immune cell populations in the pdr6Δ-infected mice when compared to their WT-infected littermates. Furthermore, quantification of pulmonary cytokines/chemokines revealed a robust increase of pro-inflammatory cytokines in mice infected with the pdr6Δ mutant strain. Whereas antifungal treatment of pdr6Δ-infected animals did not affect survival, treatment with a corticosteroid significantly extended survival, highlighting the importance of a balanced/controlled host immune response. We determined that the hyper-inflammatory immune response occurs, in part, because the loss of the Pdr6 transporter indirectly alters the cryptococcal cell wall architecture and results in the increased exposure of chitin, β-glucan, and other cryptococcal-specific pathogen associated molecular patterns. Taken together, this study provides clinical insights regarding cryptococcal pathogenesis while also providing additional functions of PDR-type ATP-binding cassette (ABC) transporters in pathogenic fungi.
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Affiliation(s)
- Christopher J. Winski
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Peter V. Stuckey
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Armando M. Marrufo
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Robbi L. Ross
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
- Integrated Biomedical Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Georgina Agyei
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
| | - Sarah Chapman
- Integrated Imaging Facility, University of Notre Dame, Notre Dame, Indiana, USA
| | - Felipe H. Santiago-Tirado
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA
- Integrated Biomedical Sciences, University of Notre Dame, Notre Dame, Indiana, USA
- Eck Institute for Global Health, University of Notre Dame, Notre Dame, Indiana, USA
- Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana, USA
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4
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Zbieralski K, Staszewski J, Konczak J, Lazarewicz N, Nowicka-Kazmierczak M, Wawrzycka D, Maciaszczyk-Dziubinska E. Multilevel Regulation of Membrane Proteins in Response to Metal and Metalloid Stress: A Lesson from Yeast. Int J Mol Sci 2024; 25:4450. [PMID: 38674035 PMCID: PMC11050377 DOI: 10.3390/ijms25084450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/06/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
In the face of flourishing industrialization and global trade, heavy metal and metalloid contamination of the environment is a growing concern throughout the world. The widespread presence of highly toxic compounds of arsenic, antimony, and cadmium in nature poses a particular threat to human health. Prolonged exposure to these toxins has been associated with severe human diseases, including cancer, diabetes, and neurodegenerative disorders. These toxins are known to induce analogous cellular stresses, such as DNA damage, disturbance of redox homeostasis, and proteotoxicity. To overcome these threats and improve or devise treatment methods, it is crucial to understand the mechanisms of cellular detoxification in metal and metalloid stress. Membrane proteins are key cellular components involved in the uptake, vacuolar/lysosomal sequestration, and efflux of these compounds; thus, deciphering the multilevel regulation of these proteins is of the utmost importance. In this review, we summarize data on the mechanisms of arsenic, antimony, and cadmium detoxification in the context of membrane proteome. We used yeast Saccharomyces cerevisiae as a eukaryotic model to elucidate the complex mechanisms of the production, regulation, and degradation of selected membrane transporters under metal(loid)-induced stress conditions. Additionally, we present data on orthologues membrane proteins involved in metal(loid)-associated diseases in humans.
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Affiliation(s)
| | | | | | | | | | | | - Ewa Maciaszczyk-Dziubinska
- Department of Genetics and Cell Physiology, Faculty of Biological Sciences, University of Wroclaw, 50-328 Wroclaw, Poland; (K.Z.); (J.S.); (J.K.); (N.L.); (M.N.-K.); (D.W.)
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5
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Mitchell-White JI, Briggs DA, Mistry SJ, Mbiwan HA, Kellam B, Holliday ND, Briddon SJ, Kerr ID. A time-resolved Förster resonance energy transfer assay to investigate drug and inhibitor binding to ABCG2. Arch Biochem Biophys 2024; 753:109915. [PMID: 38307314 DOI: 10.1016/j.abb.2024.109915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/21/2023] [Accepted: 01/17/2024] [Indexed: 02/04/2024]
Abstract
The human ATP-binding cassette (ABC) transporter, ABCG2, is responsible for multidrug resistance in some tumours. Detailed knowledge of its activity is crucial for understanding drug transport and resistance in cancer, and has implications for wider pharmacokinetics. The binding of substrates and inhibitors is a key stage in the transport cycle of ABCG2. Here, we describe a novel binding assay using a high affinity fluorescent inhibitor based on Ko143 and time-resolved Förster resonance energy transfer (TR-FRET) to measure saturation binding to ABCG2. This binding is displaced by Ko143 and other known ABCG2 ligands, and is sensitive to the addition of AMP-PNP, a non-hydrolysable ATP analogue. This assay complements the arsenal of methods for determining drug:ABCG2 interactions and has the possibility of being adaptable for other multidrug pumps.
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Affiliation(s)
- James I Mitchell-White
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK; Centre of Membrane Proteins and Receptors, Universities of Birmingham and Nottingham, The Midlands, UK.
| | - Deborah A Briggs
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK
| | - Sarah J Mistry
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Hannah A Mbiwan
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK; School of Pharmacy, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Barrie Kellam
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Nicholas D Holliday
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK
| | - Stephen J Briddon
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK; Centre of Membrane Proteins and Receptors, Universities of Birmingham and Nottingham, The Midlands, UK
| | - Ian D Kerr
- School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK.
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Meagher RB, Lewis ZA, Ambati S, Lin X. DectiSomes: C-type lectin receptor-targeted liposomes as pan-antifungal drugs. Adv Drug Deliv Rev 2023; 196:114776. [PMID: 36934519 PMCID: PMC10133202 DOI: 10.1016/j.addr.2023.114776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/19/2023]
Abstract
Combatting the ever-increasing threat from invasive fungal pathogens faces numerous fundamental challenges, including constant human exposure to large reservoirs of species in the environment, the increasing population of immunocompromised or immunosuppressed individuals, the unsatisfactory efficacy of current antifungal drugs and their associated toxicity, and the scientific and economic barriers limiting a new antifungal pipeline. DectiSomes represent a new drug delivery platform that enhances antifungal efficacy for diverse fungal pathogens and reduces host toxicity for current and future antifungals. DectiSomes employ pathogen receptor proteins - C-type lectins - to target drug-loaded liposomes to conserved fungal cognate ligands and away from host cells. DectiSomes represent one leap forward for urgently needed effective pan-antifungal therapy. Herein, we discuss the problems of battling fungal diseases and the state of DectiSome development.
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Affiliation(s)
- Richard B Meagher
- Department of Genetics, University of Georgia, Athens, GA 30602, USA
| | - Zachary A Lewis
- Department of Genetics, University of Georgia, Athens, GA 30602, USA; Department of Microbiology, University of Georgia, Athens, GA 30602, USA
| | - Suresh Ambati
- Department of Genetics, University of Georgia, Athens, GA 30602, USA
| | - Xiaorong Lin
- Department of Microbiology, University of Georgia, Athens, GA 30602, USA.
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7
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Conformational space exploration of cryo-EM structures by variability refinement. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2023; 1865:184133. [PMID: 36738875 DOI: 10.1016/j.bbamem.2023.184133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 02/05/2023]
Abstract
Cryo-EM observation of biological samples enables visualization of sample heterogeneity, in the form of discrete states that are separable, or continuous heterogeneity as a result of local protein motion before flash freezing. Variability analysis of this continuous heterogeneity describes the variance between a particle stack and a volume, and results in a map series describing the various steps undertaken by the sample in the particle stack. While this observation is absolutely stunning, it is very hard to pinpoint structural details to elements of the maps. In order to bridge the gap between observation and explanation, we designed a tool that refines an ensemble of structures into all the maps from variability analysis. Using this bundle of structures, it is easy to spot variable parts of the structure, as well as the parts that are not moving. Comparison with molecular dynamics simulations highlights the fact that the movements follow the same directions, albeit with different amplitudes. Ligand can also be investigated using this method. Variability refinement is available in the Phenix software suite, accessible under the program name phenix.varref.
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8
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Pakuła K, Sequeiros-Borja C, Biała-Leonhard W, Pawela A, Banasiak J, Bailly A, Radom M, Geisler M, Brezovsky J, Jasiński M. Restriction of access to the central cavity is a major contributor to substrate selectivity in plant ABCG transporters. Cell Mol Life Sci 2023; 80:105. [PMID: 36952129 PMCID: PMC10036432 DOI: 10.1007/s00018-023-04751-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 03/24/2023]
Abstract
ABCG46 of the legume Medicago truncatula is an ABC-type transporter responsible for highly selective translocation of the phenylpropanoids, 4-coumarate, and liquiritigenin, over the plasma membrane. To investigate molecular determinants of the observed substrate selectivity, we applied a combination of phylogenetic and biochemical analyses, AlphaFold2 structure prediction, molecular dynamics simulations, and mutagenesis. We discovered an unusually narrow transient access path to the central cavity of MtABCG46 that constitutes an initial filter responsible for the selective translocation of phenylpropanoids through a lipid bilayer. Furthermore, we identified remote residue F562 as pivotal for maintaining the stability of this filter. The determination of individual amino acids that impact the selective transport of specialized metabolites may provide new opportunities associated with ABCGs being of interest, in many biological scenarios.
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Affiliation(s)
- Konrad Pakuła
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznan, Poland
| | - Carlos Sequeiros-Borja
- Laboratory of Biomolecular Interactions and Transport, Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland
- International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, 02-109, Warsaw, Poland
| | - Wanda Biała-Leonhard
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Aleksandra Pawela
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Joanna Banasiak
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Aurélien Bailly
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland
| | - Marcin Radom
- Department of Structural Bioinformatics, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z.Noskowskiego12/14, 61-704, Poznan, Poland
- Institute of Computing Science, Poznan University of Technology, Piotrowo 2, 60-965, Poznan, Poland
| | - Markus Geisler
- Department of Biology, University of Fribourg, Chem. du Musée 10, 1700, Fribourg, Switzerland
| | - Jan Brezovsky
- Laboratory of Biomolecular Interactions and Transport, Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland.
- International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, 02-109, Warsaw, Poland.
| | - Michał Jasiński
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland.
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Dojazd 11, 60-632, Poznan, Poland.
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Islam MD, Harrison BD, Li JJY, McLoughlin AG, Court DA. Do mitochondria use efflux pumps to protect their ribosomes from antibiotics? MICROBIOLOGY (READING, ENGLAND) 2023; 169:001272. [PMID: 36748523 PMCID: PMC9993110 DOI: 10.1099/mic.0.001272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Fungal environments are rich in natural and engineered antimicrobials, and this, combined with the fact that fungal genomes are rich in coding sequences for transporters, suggests that fungi are an intriguing group in which to search for evidence of antimicrobial efflux pumps in mitochondria. Herein, the range of protective mechanisms used by fungi against antimicrobials is introduced, and it is hypothesized, based on the susceptibility of mitochondrial and bacterial ribosomes to the same antibiotics, that mitochondria might also contain pumps that efflux antibiotics from these organelles. Preliminary evidence of ethidium bromide efflux is presented and several candidate efflux pumps are identified in fungal mitochondrial proteomes.
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Affiliation(s)
- Md Deen Islam
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Brian D Harrison
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Judy J-Y Li
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Austein G McLoughlin
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
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10
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Wang Q, Chen C, Xu X, Shu C, Cao C, Wang Z, Fu Y, Xu L, Xu K, Xu J, Xia A, Wang B, Xu G, Zou X, Su R, Kang W, Xue Y, Mo R, Sun B, Wang S. APAF1-Binding Long Noncoding RNA Promotes Tumor Growth and Multidrug Resistance in Gastric Cancer by Blocking Apoptosome Assembly. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201889. [PMID: 35975461 PMCID: PMC9534967 DOI: 10.1002/advs.202201889] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/13/2022] [Indexed: 05/29/2023]
Abstract
Chemotherapeutics remain the first choice for advanced gastric cancers (GCs). However, drug resistance and unavoidable severe toxicity lead to chemotherapy failure and poor prognosis. Long noncoding RNAs (lncRNAs) play critical roles in tumor progression in many cancers, including GC. Here, through RNA screening, an apoptotic protease-activating factor 1 (APAF1)-binding lncRNA (ABL) that is significantly elevated in cancerous GC tissues and an independent prognostic factor for GC patients is identified. Moreover, ABL overexpression inhibits GC cell apoptosis and promotes GC cell survival and multidrug resistance in GC xenograft and organoid models. Mechanistically, ABL directly binds to the RNA-binding protein IGF2BP1 via its KH1/2 domain, and then IGF2BP1 further recognizes the METTL3-mediated m6A modification on ABL, which maintains ABL stability. In addition, ABL can bind to the WD1/WD2 domain of APAF1, which competitively prevent cytochrome c from interacting with APAF1, blocking apoptosome assembly and caspase-9/3 activation; these events lead to resistance to cell death in GC cells. Intriguingly, targeting ABL using encapsulated liposomal siRNA can significantly enhance the sensitivity of GC cells to chemotherapy. Collectively, the results suggest that ABL can be a potential prognostic biomarker and therapeutic target in GC.
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Affiliation(s)
- Qiang Wang
- Department of Hepatobiliary SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
- Department of Hepatobiliary SurgeryThe First Affiliated Hospital of Anhui Medical UniversityHefei230022China
| | - Chen Chen
- Jiangsu Key Laboratory of Molecular MedicineMedical School of Nanjing UniversityNanjing210000China
| | - Xiao Xu
- State Key Laboratory of Natural MedicinesJiangsu Key Laboratory of Drug Discovery for Metabolic DiseasesCenter of Advanced Pharmaceuticals and BiomaterialsSchool of Life Science and TechnologyChina Pharmaceutical UniversityNanjing210000China
| | - Chuanjun Shu
- Department of BioinformaticsSchool of Biomedical Engineering and InformaticsNanjing Medical UniversityNanjing210000China
| | - Changchang Cao
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijing100101China
| | - Zhangding Wang
- Department of GastroenterologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Yao Fu
- Department of PathologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Lei Xu
- Department of GastroenterologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Kaiyue Xu
- Department of Hepatobiliary SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Jiawen Xu
- Jiangsu Key Laboratory of Molecular MedicineMedical School of Nanjing UniversityNanjing210000China
| | - Anliang Xia
- Department of Hepatobiliary SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Bo Wang
- Department of Hepatobiliary SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Guifang Xu
- Department of GastroenterologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Xiaoping Zou
- Department of GastroenterologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
| | - Ruibao Su
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijing100101China
| | - Wei Kang
- Department of Anatomical and Cellular PathologyInstitute of Digestive DiseaseState Key Laboratory of Digestive DiseaseState Key Laboratory of Translational OncologyPrince of Wales HospitalThe Chinese University of Hong KongHong KongSAR999077China
| | - Yuanchao Xue
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijing100101China
| | - Ran Mo
- State Key Laboratory of Natural MedicinesJiangsu Key Laboratory of Drug Discovery for Metabolic DiseasesCenter of Advanced Pharmaceuticals and BiomaterialsSchool of Life Science and TechnologyChina Pharmaceutical UniversityNanjing210000China
| | - Beicheng Sun
- Department of Hepatobiliary SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
- Department of Hepatobiliary SurgeryThe First Affiliated Hospital of Anhui Medical UniversityHefei230022China
| | - Shouyu Wang
- Department of Hepatobiliary SurgeryThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing210000China
- Jiangsu Key Laboratory of Molecular MedicineMedical School of Nanjing UniversityNanjing210000China
- Center for Public Health ResearchMedical School of Nanjing UniversityNanjing210000China
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11
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Dudas B, Decleves X, Cisternino S, Perahia D, Miteva M. ABCG2/BCRP transport mechanism revealed through kinetically excited targeted molecular dynamics simulations. Comput Struct Biotechnol J 2022; 20:4195-4205. [PMID: 36016719 PMCID: PMC9389183 DOI: 10.1016/j.csbj.2022.07.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 12/03/2022] Open
Abstract
ABCG2/BCRP is an ABC transporter that plays an important role in tissue protection by exporting endogenous substrates and xenobiotics. ABCG2 is of major interest due to its involvement in multidrug resistance (MDR), and understanding its complex efflux mechanism is essential to preventing MDR and drug-drug interactions (DDI). ABCG2 export is characterized by two major conformational transitions between inward- and outward-facing states, the structures of which have been resolved. Yet, the entire transport cycle has not been characterized to date. Our study bridges the gap between the two extreme conformations by studying connecting pathways. We developed an innovative approach to enhance molecular dynamics simulations, ‘kinetically excited targeted molecular dynamics’, and successfully simulated the transitions between inward- and outward-facing states in both directions and the transport of the endogenous substrate estrone 3-sulfate. We discovered an additional pocket between the two substrate-binding cavities and found that the presence of the substrate in the first cavity is essential to couple the movements between the nucleotide-binding and transmembrane domains. Our study shed new light on the complex efflux mechanism, and we provided transition pathways that can help to identify novel substrates and inhibitors of ABCG2 and probe new drug candidates for MDR and DDI.
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12
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Raschka SL, Harris A, Luisi BF, Schmitt L. Flipping and other astonishing transporter dance moves in fungal drug resistance. Bioessays 2022; 44:e2200035. [PMID: 35451123 DOI: 10.1002/bies.202200035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/07/2022] [Accepted: 04/12/2022] [Indexed: 11/09/2022]
Abstract
In all domains of life, transmembrane proteins from the ATP-binding cassette (ABC) transporter family drive the translocation of diverse substances across lipid bilayers. In pathogenic fungi, the ABC transporters of the pleiotropic drug resistance (PDR) subfamily confer antibiotic resistance and so are of interest as therapeutic targets. They also drive the quest for understanding how ABC transporters can generally accommodate such a wide range of substrates. The Pdr5 transporter from baker's yeast is representative of the PDR group and, ever since its discovery more than 30 years ago, has been the subject of extensive functional analyses. A new perspective of these studies has been recently provided in the framework of the first electron cryo-microscopy structures of Pdr5, as well as emergent applications of machine learning in the field. Taken together, the old and the new developments have been used to propose a mechanism for the transport process in PDR proteins. This mechanism involves a "flippase" step that moves the substrates from one leaflet of the bilayer to the other, as a central element of cellular efflux.
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Affiliation(s)
- Stefanie L Raschka
- Institute of Biochemistry, Heinrich Heine University, Düsseldorf, Germany
| | - Andrzej Harris
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Ben F Luisi
- Department of Biochemistry, University of Cambridge, Cambridge, UK
| | - Lutz Schmitt
- Institute of Biochemistry, Heinrich Heine University, Düsseldorf, Germany
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13
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Shivarathri R, Jenull S, Chauhan M, Singh A, Mazumdar R, Chowdhary A, Kuchler K, Chauhan N. Comparative Transcriptomics Reveal Possible Mechanisms of Amphotericin B Resistance in Candida auris. Antimicrob Agents Chemother 2022; 66:e0227621. [PMID: 35652307 PMCID: PMC9211394 DOI: 10.1128/aac.02276-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 05/11/2022] [Indexed: 12/27/2022] Open
Abstract
Candida auris is an emerging multidrug-resistant human fungal pathogen often refractory to treatment by all classes of antifungal drugs. Amphotericin B (AmB) is a fungicidal drug that, despite its toxic side effects, remains a drug of choice for the treatment of drug-resistant fungal infections, including those caused by C. auris. However, the molecular mechanisms underlying AmB resistance are poorly understood. In this study, we present data that suggests membrane lipid alterations and chromatin modifications are critical processes that may contribute to or cause adaptive AmB resistance in clinical C. auris isolates. To determine the plausible cause of increased AmB resistance, we performed RNA-seq of AmB-resistant and sensitive C. auris isolates. Remarkably, AmB-resistant strains show a pronounced enrichment of genes involved in lipid and ergosterol biosynthesis, adhesion, drug transport as well as chromatin remodeling. The transcriptomics data confirm increased adhesion and reduced lipid membrane permeability of AmB-resistant strains compared to the sensitive isolates. The AmB-resistant strains also display hyper-resistance to cell wall perturbing agents, including Congo red, calcofluor white and caffeine. Additionally, we noticed an increased phosphorylation of Mkc1 cell integrity MAP kinase upon AmB treatment. Collectively, these data identify differences in the transcriptional landscapes of AmB-resistant versus AmB-sensitive isolates and provide a framework for the mechanistic understanding of AmB resistance in C. auris.
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Affiliation(s)
- Raju Shivarathri
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Sabrina Jenull
- Department of Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Medical University of Vienna, Vienna, Austria
- Functional Microbiology, Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Manju Chauhan
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Ashutosh Singh
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
- National Reference Laboratory for Antimicrobial Resistance in Fungal Pathogens, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Rounik Mazumdar
- Department of Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Medical University of Vienna, Vienna, Austria
| | - Anuradha Chowdhary
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
- National Reference Laboratory for Antimicrobial Resistance in Fungal Pathogens, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Karl Kuchler
- Department of Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Medical University of Vienna, Vienna, Austria
| | - Neeraj Chauhan
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
- Department of Microbiology, Biochemistry and Molecular Genetics, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
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14
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An Atypical ABC Transporter Is Involved in Antifungal Resistance and Host Interactions in the Pathogenic Fungus Cryptococcus neoformans. mBio 2022; 13:e0153922. [PMID: 35726920 PMCID: PMC9426558 DOI: 10.1128/mbio.01539-22] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
ATP-binding cassette (ABC) transporters represent one of the largest protein superfamilies. Functionally diverse, ABC transporters have been implicated in many aspects of microbial physiology. The genome of the human fungal pathogen Cryptococcus neoformans encodes 54 putative ABC transporters and most of them remain uncharacterized. In a previous genetic screen for fungal regulators of phagocytosis, we identified an uncharacterized gene, CNAG_06909, that modulates host interactions. This gene encoded a half-size ABC transporter of the PDR-type, and phenotypic studies of a strain with this gene deleted revealed an altered antifungal susceptibility profile, including hypersensitivity to fluconazole (FLC). This gene, which we named PDR6, localized to the endoplasmic reticulum (ER) and plasma membrane (PM), and when absent, less ergosterol was observed in the PM. Additionally, we observed that the pdr6Δ strain displayed a reduction in secreted polysaccharide capsular material. These changes to the cellular surface may explain the observed increased uptake by macrophages and the reduced intracellular survival. Finally, studies in mice demonstrated that Pdr6 function was required for the normal progression of cryptococcal infection. Taken together, this study demonstrates a novel dual role for PDR transporters in C. neoformans, which could represent a potential target for antifungal therapeutics. Furthermore, the atypical half-size transporter encoded by PDR6 is conserved in many fungal pathogens, but absent in model nonpathogenic fungi. Hence, this study provided a function for this unique group of fungal half-size PDR transporters that, although conserved, remain largely understudied.
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15
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Wagner M, Blum D, Raschka SL, Nentwig LM, Gertzen CGW, Chen M, Gatsogiannis C, Harris A, Smits SHJ, Wagner R, Schmitt L. A New Twist in ABC Transporter Mediated Multidrug Resistance - Pdr5 is a Drug/proton Co-transporter. J Mol Biol 2022; 434:167669. [PMID: 35671830 DOI: 10.1016/j.jmb.2022.167669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 10/18/2022]
Abstract
The two major efflux pump systems that are involved in multidrug resistance (MDR) are (i) ATP binding cassette (ABC) transporters and (ii) secondary transporters. While the former use binding and hydrolysis of ATP to facilitate export of cytotoxic compounds, the latter utilize electrochemical gradients to expel their substrates. Pdr5 from Saccharomyces cerevisiae is a prominent member of eukaryotic ATP binding cassette (ABC) transporters that are involved in multidrug resistance (MDR) and used as a frequently studied model system. Although investigated for decades, the underlying molecular mechanisms of drug transport and substrate specificity remain elusive. Here, we provide electrophysiological data on the reconstituted Pdr5 demonstrating that this MDR efflux pump does not only actively translocate its substrates across the lipid bilayer, but at the same time generates a proton motif force in the presence of Mg2+-ATP and substrates by acting as a proton/drug co-transporter. Importantly, a strictly substrate dependent co-transport of protons was also observed in in vitro transport studies using Pdr5-enriched plasma membranes. We conclude from these results that the mechanism of MDR conferred by Pdr5 and likely other transporters is more complex than the sole extrusion of cytotoxic compounds and involves secondary coupled processes suitable to increase the effectiveness.
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Affiliation(s)
- Manuel Wagner
- Institute of Biochemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Daniel Blum
- Department of Life Sciences and Chemistry, Jacobs University Bremen, 28719 Bremen, Germany
| | - Stefanie L Raschka
- Institute of Biochemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Lea-Marie Nentwig
- Institute of Biochemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Christoph G W Gertzen
- Center for Structural Studies Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany; Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Minghao Chen
- Institute for Medical Physics and Biophysics and Center for Soft Nanoscience, Westfälische Wilhelms Universität Münster, 48149 Münster, Germany; Department of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany
| | - Christos Gatsogiannis
- Institute for Medical Physics and Biophysics and Center for Soft Nanoscience, Westfälische Wilhelms Universität Münster, 48149 Münster, Germany; Department of Structural Biochemistry, Max Planck Institute of Molecular Physiology, 44227 Dortmund, Germany
| | - Andrzej Harris
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, United Kingdom
| | - Sander H J Smits
- Institute of Biochemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany; Center for Structural Studies Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Richard Wagner
- Department of Life Sciences and Chemistry, Jacobs University Bremen, 28719 Bremen, Germany.
| | - Lutz Schmitt
- Institute of Biochemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
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16
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Giacomini KM, Yee SW, Koleske ML, Zou L, Matsson P, Chen EC, Kroetz DL, Miller MA, Gozalpour E, Chu X. New and Emerging Research on Solute Carrier and ATP Binding Cassette Transporters in Drug Discovery and Development: Outlook from the International Transporter Consortium. Clin Pharmacol Ther 2022; 112:540-561. [PMID: 35488474 PMCID: PMC9398938 DOI: 10.1002/cpt.2627] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/16/2022] [Indexed: 02/06/2023]
Abstract
Enabled by a plethora of new technologies, research in membrane transporters has exploded in the past decade. The goal of this state‐of‐the‐art article is to describe recent advances in research on membrane transporters that are particularly relevant to drug discovery and development. This review covers advances in basic, translational, and clinical research that has led to an increased understanding of membrane transporters at all levels. At the basic level, we describe the available crystal structures of membrane transporters in both the solute carrier (SLC) and ATP binding cassette superfamilies, which has been enabled by the development of cryogenic electron microscopy methods. Next, we describe new research on lysosomal and mitochondrial transporters as well as recently deorphaned transporters in the SLC superfamily. The translational section includes a summary of proteomic research, which has led to a quantitative understanding of transporter levels in various cell types and tissues and new methods to modulate transporter function, such as allosteric modulators and targeted protein degraders of transporters. The section ends with a review of the effect of the gut microbiome on modulation of transporter function followed by a presentation of 3D cell cultures, which may enable in vivo predictions of transporter function. In the clinical section, we describe new genomic and pharmacogenomic research, highlighting important polymorphisms in transporters that are clinically relevant to many drugs. Finally, we describe new clinical tools, which are becoming increasingly available to enable precision medicine, with the application of tissue‐derived small extracellular vesicles and real‐world biomarkers.
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Affiliation(s)
- Kathleen M Giacomini
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Sook W Yee
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Megan L Koleske
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Ling Zou
- Pharmacokinetics and Drug Metabolism, Amgen Inc., South San Francisco, California, USA
| | - Pär Matsson
- Department of Pharmacology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Eugene C Chen
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., South San Francisco, California, USA
| | - Deanna L Kroetz
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, USA
| | - Miles A Miller
- Center for Systems Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Elnaz Gozalpour
- Drug Safety and Metabolism, IMED Biotech Unit, Safety and ADME Translational Sciences Department, AstraZeneca R&D, Cambridge, UK
| | - Xiaoyan Chu
- Department of ADME and Discovery Toxicology, Merck & Co. Inc, Kenilworth, New Jersey, USA
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17
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ABC Transporters in Human Diseases: Future Directions and Therapeutic Perspectives. Int J Mol Sci 2022; 23:ijms23084250. [PMID: 35457067 PMCID: PMC9028344 DOI: 10.3390/ijms23084250] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 01/27/2023] Open
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18
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Cheng X, Dai T, Hu Z, Cui T, Wang W, Han P, Hu M, Hao J, Liu P, Liu X. Cytochrome P450 and Glutathione S-Transferase Confer Metabolic Resistance to SYP-14288 and Multi-Drug Resistance in Rhizoctonia solani. Front Microbiol 2022; 13:806339. [PMID: 35387083 PMCID: PMC8977892 DOI: 10.3389/fmicb.2022.806339] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/26/2022] [Indexed: 11/17/2022] Open
Abstract
SYP-14288 is a fungicide as an uncoupler of oxidative phosphorylation, which is effective in controlling fungal pathogens like Rhizoctonia solani. To determine whether R. solani can develop SYP-14288 resistance and possibly multi-drug resistance (MDR), an SYP-14288-resistant mutant of R. solani X19-7 was generated from wild-type strain X19, and the mechanism of resistance was studied through metabolic and genetic assays. From metabolites of R. solani treated with SYP-14288, three compounds including M1, M2, and M3 were identified according to UPLC-MS/MS analysis, and M1 accumulated faster than M2 and M3 in X19-7. When X19-7 was treated by glutathione-S-transferase (GST) inhibitor diethyl maleate (DEM) and SYP-14288 together, or by DEM plus one of tested fungicides that have different modes of action, a synergistic activity of resistance occurred, implying that GSTs promoted metabolic resistance against SYP-14288 and therefore led to MDR. By comparing RNA sequences between X19-7 and X19, six cytochrome P450s (P450s) and two GST genes were selected as a target, which showed a higher expression in X19-7 than X19 both before and after the exposure to SYP-14288. Furthermore, heterologous expression of P450 and GST genes in yeast was conducted to confirm genes involved in metabolic resistance. In results, the P450 gene AG1IA_05136 and GST gene AG1IA_07383 were related to fungal resistance to multiple fungicides including SYP-14288, fluazinam, chlorothalonil, and difenoconazole. It was the first report that metabolic resistance of R. solani to uncouplers was associated with P450 and GST genes.
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Affiliation(s)
- Xingkai Cheng
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Tan Dai
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Zhihong Hu
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Tongshan Cui
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Weizhen Wang
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Ping Han
- Institute of Quality Standard and Testing Technology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Maolin Hu
- Shenzhen Agricultural Technology Promotion Center, Shenzhen, China
| | - Jianjun Hao
- School of Food and Agriculture, University of Maine, Orono, ME, United States
| | - Pengfei Liu
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Xili Liu
- Department of Plant Pathology, China Agricultural University, Beijing, China
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19
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Drug Resistance and Endoplasmic Reticulum Stress in Hepatocellular Carcinoma. Cells 2022; 11:cells11040632. [PMID: 35203283 PMCID: PMC8870354 DOI: 10.3390/cells11040632] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/05/2022] [Accepted: 02/08/2022] [Indexed: 01/27/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common and deadly cancers worldwide. It is usually diagnosed in an advanced stage and is characterized by a high intrinsic drug resistance, leading to limited chemotherapeutic efficacy and relapse after treatment. There is therefore a vast need for understanding underlying mechanisms that contribute to drug resistance and for developing therapeutic strategies that would overcome this. The rapid proliferation of tumor cells, in combination with a highly inflammatory microenvironment, causes a chronic increase of protein synthesis in different hepatic cell populations. This leads to an intensified demand of protein folding, which inevitably causes an accumulation of misfolded or unfolded proteins in the lumen of the endoplasmic reticulum (ER). This process is called ER stress and triggers the unfolded protein response (UPR) in order to restore protein synthesis or—in the case of severe or prolonged ER stress—to induce cell death. Interestingly, the three different arms of the ER stress signaling pathways have been shown to drive chemoresistance in several tumors and could therefore form a promising therapeutic target. This review provides an overview of how ER stress and activation of the UPR contributes to drug resistance in HCC.
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20
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Multidrug Resistance (MDR): A Widespread Phenomenon in Pharmacological Therapies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030616. [PMID: 35163878 PMCID: PMC8839222 DOI: 10.3390/molecules27030616] [Citation(s) in RCA: 145] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 02/07/2023]
Abstract
Multidrug resistance is a leading concern in public health. It describes a complex phenotype whose predominant feature is resistance to a wide range of structurally unrelated cytotoxic compounds, many of which are anticancer agents. Multidrug resistance may be also related to antimicrobial drugs, and is known to be one of the most serious global public health threats of this century. Indeed, this phenomenon has increased both mortality and morbidity as a consequence of treatment failures and its incidence in healthcare costs. The large amounts of antibiotics used in human therapies, as well as for farm animals and even for fishes in aquaculture, resulted in the selection of pathogenic bacteria resistant to multiple drugs. It is not negligible that the ongoing COVID-19 pandemic may further contribute to antimicrobial resistance. In this paper, multidrug resistance and antimicrobial resistance are underlined, focusing on the therapeutic options to overcome these obstacles in drug treatments. Lastly, some recent studies on nanodrug delivery systems have been reviewed since they may represent a significant approach for overcoming resistance.
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21
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Yeast Double Transporter Gene Deletion Library for Identification of Xenobiotic Carriers in Low or High Throughput. mBio 2021; 12:e0322121. [PMID: 34903049 PMCID: PMC8669479 DOI: 10.1128/mbio.03221-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The routes of uptake and efflux should be considered when developing new drugs so that they can effectively address their intracellular targets. As a general rule, drugs appear to enter cells via protein carriers that normally carry nutrients or metabolites. A previously developed pipeline that searched for drug transporters using Saccharomyces cerevisiae mutants carrying single-gene deletions identified import routes for most compounds tested. However, due to the redundancy of transporter functions, we propose that this methodology can be improved by utilizing double mutant strains in both low- and high-throughput screens. We constructed a library of over 14,000 strains harboring double deletions of genes encoding 122 nonessential plasma membrane transporters and performed low- and high-throughput screens identifying possible drug import routes for 23 compounds. In addition, the high-throughput assay enabled the identification of putative efflux routes for 21 compounds. Focusing on azole antifungals, we were able to identify the involvement of the myo-inositol transporter, Itr1p, in the uptake of these molecules and to confirm the role of Pdr5p in their export.
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22
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Sá-Correia I, Godinho CP. Exploring the biological function of efflux pumps for the development of superior industrial yeasts. Curr Opin Biotechnol 2021; 74:32-41. [PMID: 34781103 DOI: 10.1016/j.copbio.2021.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/23/2021] [Accepted: 10/18/2021] [Indexed: 01/02/2023]
Abstract
Among the mechanisms used by yeasts to overcome the deleterious effects of chemical and other environmental stresses is the activity of plasma membrane efflux pumps involved in multidrug resistance (MDR), a role on the focus of intensive research for years in pathogenic yeasts. More recently, these active transporters belonging to the MFS (Drug: H+ antiporters) or the ABC superfamily have been involved in resistance to xenobiotic compounds and in the transport of substrates with a clear physiological role. This review paper focuses on these putative efflux pumps concerning their tolerance phenotypes towards bioprocess-specific multiple stress factors, expression levels, physiological roles, and mechanisms by which they may lead to multistress resistance. Their association with the increased secretion of metabolites and other bioproducts and in the development of more robust superior strains for Yeast Chemical Biotechnology is highlighted.
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Affiliation(s)
- Isabel Sá-Correia
- iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal; Associate Laboratory Institute for Health and Bioeconomy i4HB at Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal; Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal.
| | - Cláudia P Godinho
- iBB - Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal; Associate Laboratory Institute for Health and Bioeconomy i4HB at Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal.
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23
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Siri M, Behrouj H, Dastghaib S, Zamani M, Likus W, Rezaie S, Hudecki J, Khazayel S, Łos MJ, Mokarram P, Ghavami S. Casein Kinase-1-Alpha Inhibitor (D4476) Sensitizes Microsatellite Instable Colorectal Cancer Cells to 5-Fluorouracil via Authophagy Flux Inhibition. Arch Immunol Ther Exp (Warsz) 2021; 69:26. [PMID: 34536148 PMCID: PMC8449776 DOI: 10.1007/s00005-021-00629-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/05/2021] [Indexed: 02/07/2023]
Abstract
Adjuvant chemotherapy with 5-fluorouracil (5-FU) does not improve survival of patients suffering from a form of colorectal cancer (CRC) characterized by high level of microsatellite instability (MSI-H). Given the importance of autophagy and multi-drug-resistant (MDR) proteins in chemotherapy resistance, as well as the role of casein kinase 1-alpha (CK1α) in the regulation of autophagy, we tested the combined effect of 5-FU and CK1α inhibitor (D4476) on HCT116 cells as a model of MSI-H colorectal cancer. To achieve this goal, the gene expression of Beclin1 and MDR genes, ABCG2 and ABCC3 were analyzed using quantitative real-time polymerase chain reaction. We used immunoblotting to measure autophagy flux (LC3, p62) and flow cytometry to detect apoptosis. Our findings showed that combination treatment with 5-FU and D4476 inhibited autophagy flux. Moreover, 5-FU and D4476 combination therapy induced G2, S and G1 phase arrests and it depleted mRNA of both cell proliferation-related genes and MDR-related genes (ABCG2, cyclin D1 and c-myc). Hence, our data indicates that targeting of CK1α may increase the sensitivity of HCT116 cells to 5-FU. To our knowledge, this is the first description of sensitization of CRC cells to 5-FU chemotherapy by CK1α inhibitor.
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Affiliation(s)
- Morvarid Siri
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, P.O Box: 1167, Shiraz, Iran
| | - Hamid Behrouj
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, P.O Box: 1167, Shiraz, Iran
| | - Sanaz Dastghaib
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, P.O Box: 1167, Shiraz, Iran
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mozhdeh Zamani
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Wirginia Likus
- Department of Anatomy, School of Health Science in Katowice, Medical University of Silesia, ul. Medyków 18, 40-762, Katowice, Poland
| | - Sedigheh Rezaie
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, P.O Box: 1167, Shiraz, Iran
| | - Jacek Hudecki
- Laryngology Department, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Saeed Khazayel
- Department of Research and Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Marek J Łos
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Pathology, Unii Lubelskiej 1, Pomeranian Medical University, 71-344, Szczecin, Poland.
| | - Pooneh Mokarram
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, P.O Box: 1167, Shiraz, Iran.
| | - Saeid Ghavami
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
- Research Institute of Oncology and Hematology, Cancer Care Manitoba, University of Manitoba, Winnipeg, Canada.
- Faculty of Medicine, Katowice School of Technology, Katowice, Poland.
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada.
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