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Furnival-Adams J, Kiuru C, Sagna AB, Mouline K, Maia M, Chaccour C. Ivermectin resistance mechanisms in ectoparasites: a scoping review. Parasitol Res 2024; 123:221. [PMID: 38787430 PMCID: PMC11126493 DOI: 10.1007/s00436-024-08223-z] [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: 03/05/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024]
Abstract
Ivermectin mass drug administration has been used for decades to target human and veterinary ectoparasites, and is currently being considered for use against malaria vectors. Although there have been few reports of resistance to date in human ectoparasites, we must anticipate the development of resistance in mosquitoes in the future. Hence, through this review, we mapped the existing evidence on ivermectin resistance mechanisms in human ectoparasites. A search was conducted on the 8th November 2023 through databases, PubMed, Web of Science, and Google Scholar, using terms related to ivermectin, human and veterinary ectoparasites, and resistance. Abstracts (5893) were screened by JFA and CK. Data on the study organism, the type of resistance, the analysis methods, and, where applicable, the gene loci of interest were extracted from the studies. Details of the methodology and results of each study were summarised narratively and in a table. Eighteen studies were identified describing ivermectin resistance in ectoparasites. Two studies described target site resistance; and 16 studies reported metabolic resistance and/or changes in efflux pump expression. The studies investigated genetic mutations in resistant organisms, detoxification, and efflux pump expression in resistant versus susceptible organisms, and the effect of synergists on mortality or detoxification enzyme/efflux pump transcription. To date, very few studies have been conducted examining the mechanisms of ivermectin resistance in ectoparasites, with only two on Anopheles spp. Of the existing studies, most examined detoxification and efflux pump gene expression, and only two studies in lice investigated target-site resistance. Further research in this field should be encouraged, to allow for close monitoring in ivermectin MDA programmes, and the development of resistance mitigation strategies.
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Affiliation(s)
- Joanna Furnival-Adams
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain.
- Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain.
| | - Caroline Kiuru
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Centro de Investigação Em Saúde de Manhiça (CISM), Maputo, Mozambique
| | | | - Karine Mouline
- MIVEGEC, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Marta Maia
- Kenya Medical Research Institute, Wellcome Trust Research Programme, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Carlos Chaccour
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- CIBER de Enfermedades Infecciosas, Madrid, Spain
- Universidad de Navarra, Pamplona, Spain
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Shakya M, Sharma AK, Kumar S, Upadhaya D, Nagar G, Singh K, M S, Ghosh S. Acaricides resistance in Rhipicephalus microplus and expression profile of ABC-transporter genes in the sampled populations. Exp Parasitol 2023; 252:108584. [PMID: 37468088 DOI: 10.1016/j.exppara.2023.108584] [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: 01/30/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/21/2023]
Abstract
Currently, livestock owners manage tick infestations using chemicals, but the method is increasingly losing effectiveness as resistant tick populations have established in the field conditions. Thus, to develop effective tick management strategies, monitoring of resistance in most predominant tick species, Rhipicephalus microplus was targeted. The ticks were collected from eleven districts of Madhya Pradesh and one district of Punjab and tested against deltamethrin (DLM), cypermethrin (CYP), coumaphos (CMP), ivermectin (IVM) and fipronil (FIP), through adult immersion and larval packet tests. The field isolates were highly resistant to DLM [Resistance factor (RF) = 3.98-38.84]. Against CYP, resistance was observed in BWN (Barwani; RF = 2.81) and MND (Mandsaur; RF = 3.23) isolates. Surprisingly, most of the isolates were susceptible to CMP (0.34-1.58). Emerging level of resistance against IVM (1.05-4.98) and FIP (0.40-2.18) was also observed in all the isolates. Significantly elevated production of esterases (p < 0.01) was 90% correlated with RF of DLM while no positive correlation between production of monooxygenase and Glutathione S-transferase with RF to DLM was noted. Multiple sequence analysis of S4-5 linker region of the sodium channel gene of all the isolates revealed a point mutation at 190th position (C190A) which is associated with DLM resistance. Treatment of resistant LDH (Ludhiana) isolate with IVM resulted in upregulation of RmABCC2 gene and insignificant upregulation of RmABCC1 and RmABCB10 genes indicating the probability of linking IVM resistance with over-expression of RmABCC2 gene. The possible tick management strategies are discussed.
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Affiliation(s)
- Mukesh Shakya
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly- 243122, Uttar Pradesh, India; IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Anil Kumar Sharma
- IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Sachin Kumar
- IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Deepak Upadhaya
- IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Gaurav Nagar
- IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Kaushlendra Singh
- IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Sankar M
- IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India
| | - Srikant Ghosh
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly- 243122, Uttar Pradesh, India; IVRI-Eastern Regional Station, 37 Belgachia Road, Kolkata 700037, West Bengal, India.
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Sagna AB, Zéla L, Ouedraogo COW, Pooda SH, Porciani A, Furnival-Adams J, Lado P, Somé AF, Pennetier C, Chaccour CJ, Dabiré RK, Mouline K. Ivermectin as a novel malaria control tool: Getting ahead of the resistance curse. Acta Trop 2023; 245:106973. [PMID: 37352998 DOI: 10.1016/j.actatropica.2023.106973] [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: 04/07/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/25/2023]
Abstract
Reduction in malaria clinical cases is strongly dependent on the ability to prevent Anopheles infectious bites. Vector control strategies using long-lasting insecticidal nets and indoor residual spraying with insecticides have contributed to significantly reduce the incidence of malaria in many endemic countries, especially in the Sub-Saharan region. However, global progress in reducing malaria cases has plateaued since 2015 mostly due to the increased insecticide resistance and behavioral changes in Anopheles vectors. Additional control strategies are thus required to further reduce the burden of malaria and contain the spread of resistant and invasive Anopheles vectors. The use of endectocides such as ivermectin as an additional malaria control tool is now receiving increased attention, driven by its different mode of action compared to insecticides used so far and its excellent safety record for humans. In this opinion article, we discuss the advantages and disadvantages of using ivermectin for malaria control with a focus on the risk of selecting ivermectin resistance in malaria vectors. We also highlight the importance of understanding how ivermectin resistance could develop in mosquitoes and what its underlying mechanisms and associated molecular markers are, and propose a research agenda to manage this phenomenon.
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Affiliation(s)
- André B Sagna
- MIVEGEC, University of Montpellier, IRD, CNRS, Montpellier, France.
| | - Lamidi Zéla
- Centre International de Recherche-Développement sur l'Elevage en zone Subhumide, Bobo-Dioulasso, Burkina Faso
| | - Cheick Oumar W Ouedraogo
- Institut de Recherche en Sciences de la Santé, Direction Régionale de l'Ouest, Centre National de Recherche Scientifique et Technologique, Bobo-Dioulasso, Burkina Faso
| | - Sié H Pooda
- Centre International de Recherche-Développement sur l'Elevage en zone Subhumide, Bobo-Dioulasso, Burkina Faso; Université de Dédougou, Dédougou, Burkina Faso
| | | | | | - Paula Lado
- Center for Vector-borne Infectious Diseases, Colorado State University, Fort Collins, CO, USA
| | - Anyirékun F Somé
- Institut de Recherche en Sciences de la Santé, Direction Régionale de l'Ouest, Centre National de Recherche Scientifique et Technologique, Bobo-Dioulasso, Burkina Faso
| | - Cédric Pennetier
- MIVEGEC, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Carlos J Chaccour
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Madrid, Spain; Universidad de Navarra, Pamplona, Spain
| | - Roch K Dabiré
- Institut de Recherche en Sciences de la Santé, Direction Régionale de l'Ouest, Centre National de Recherche Scientifique et Technologique, Bobo-Dioulasso, Burkina Faso
| | - Karine Mouline
- MIVEGEC, University of Montpellier, IRD, CNRS, Montpellier, France
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Shakya M, Nandi A, Fular A, Kumar S, Bisht N, Sharma AK, Singh K, Kumar R, Kumar S, Juliet S, Ghosh S. Synergistic property of piperonyl butoxide, diethyl maleate, triphenyl phosphate and verapamil hydrochloride with deltamethrin and ivermectin against Rhipicephalus microplus ticks. Ticks Tick Borne Dis 2022; 13:102006. [PMID: 35917692 DOI: 10.1016/j.ttbdis.2022.102006] [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: 11/11/2021] [Revised: 06/16/2022] [Accepted: 07/16/2022] [Indexed: 11/24/2022]
Abstract
The present study was taken up to evaluate the synergistic properties of piperonyl butoxide (PBO), diethyl maleate (DEM), triphenyl phosphate (TPP) and verapamil (VER) with deltamethrin (DLM) and ivermectin (IVM) against DLM and IVM resistant tick populations collected from Madhya Pradesh and Punjab states of India. The collected field tick populations were resistant to DLM (Resistance Factor [RF] in the range of 21.71-32.98) and IVM (RF in the range of 1.89-4.98). A strong synergism between DLM and, IVM with PBO and IVM with VER was noticed. The synergistic efficacy of PBO and VER with IVM in reducing the lethal concentration 50 (LC50) value (1.69-5.72 times for PBO and 3.00-10.62 times for VER) of IVM in resistant ticks suggest that a combination of these synergists with IVM can significantly enhance the effectiveness of IVM against IVM-resistant Rhipicephlaus microplus populations gradually establishing in the different parts of the country. The synergistic efficiency of PBO with DLM in reducing the LC50 value was 2.65 and 18.01 times, respectively, against DLM- resistant two R. microplus populations (KTN and LDH). The study revealed the gradual establishment of DLM and IVM resistant populations in the surveyed states suggesting the need to adopt required resistance management strategies. The use of synergists with DLM and IVM has emerged as an effective approach for controlling the acaricide-resistant ticks.
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Affiliation(s)
- Mukesh Shakya
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Abhijit Nandi
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Ashutosh Fular
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Sachin Kumar
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Nisha Bisht
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Anil Kumar Sharma
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Kaushlendra Singh
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India
| | - Rajesh Kumar
- Division of Agricultural Chemicals, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
| | - Satyanshu Kumar
- ICAR-Directorate of Medicinal and Aromatic Plants Research, Boriavi, Anand, Gujarat 387310, India
| | - Sanis Juliet
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary and Animal Sciences, Pookode, Wayanad, Kerala 673 576, India
| | - Srikanta Ghosh
- Entomology Laboratory, Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243112, India.
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Della Noce B, Martins da Silva R, de Carvalho Uhl MV, Konnai S, Ohashi K, Calixto C, Arcanjo A, de Abreu LA, de Carvalho SS, da Silva Vaz I, Logullo C. REDOX IMBALANCE INDUCES REMODELING OF GLUCOSE METABOLISM IN RHIPICEPHALUS MICROPLUS EMBRYONIC CELL LINE. J Biol Chem 2022; 298:101599. [PMID: 35063504 PMCID: PMC8857477 DOI: 10.1016/j.jbc.2022.101599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 11/26/2022] Open
Abstract
Carbohydrate metabolism not only functions in supplying cellular energy but also has an important role in maintaining physiological homeostasis and in preventing oxidative damage caused by reactive oxygen species. Previously, we showed that arthropod embryonic cell lines have high tolerance to H2O2 exposure. Here, we describe that Rhipicephalus microplus tick embryonic cell line (BME26) employs an adaptive glucose metabolism mechanism that confers tolerance to hydrogen peroxide at concentrations too high for other organisms. This adaptive mechanism sustained by glucose metabolism remodeling promotes cell survival and redox balance in BME26 cell line after millimolar H2O2 exposure. The present work shows that this tick cell line could tolerate high H2O2 concentrations by initiating a carbohydrate-related adaptive response. We demonstrate that gluconeogenesis was induced as a compensation strategy that involved, among other molecules, the metabolic enzymes NADP-ICDH, G6PDH, and PEPCK. We also found that this phenomenon was coupled to glycogen accumulation and glucose uptake, supporting the pentose phosphate pathway to sustain NADPH production and leading to cell survival and proliferation. Our findings suggest that the described response is not atypical, being also observed in cancer cells, which highlights the importance of this model to all proliferative cells. We propose that these results will be useful in generating basic biological information to support the development of new strategies for disease treatment and parasite control.
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Comparative susceptibility of Rhipicephalus microplus collected from the northern state of India to coumaphos, malathion, deltamethrin, ivermectin, and fipronil. Trop Anim Health Prod 2021; 53:460. [PMID: 34542704 DOI: 10.1007/s11250-021-02886-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/10/2021] [Indexed: 10/20/2022]
Abstract
The chemical-based tick management method is gradually losing its clutch due to the establishment of resistant ticks. For development of region-specific tick management strategies, the present study was aimed to evaluate the comparative resistance profile of Rhipicephalus microplus isolates collected from seven districts of Uttar Pradesh, a northern state of India. Comparative analysis of the dose-response data using adult immersion test (AIT) against coumaphos, malathion, deltamethrin, ivermectin, and fipronil revealed that all the isolates were resistant to discriminating concentration of deltamethrin having LC50 of 295.12-436.52 ppm with a resistance ratio of 22.02-32.58. An emerging low level of ivermectin resistance (resistance ratio, RR50 = 1.03-2.26) with LC50 in the range of 22.39-48.98 ppm was found across the isolates. The coumaphos was highly effective against all except Amethi (AMT) isolate. Similarly, malathion was efficacious against most of the isolates except Pratapgarh (PRT) and Sultanpur (SUL) isolates showing LC50 of 5128.61 and 5623.41 ppm, respectively. All the isolates were responsive to fipronil. Comparative detoxifying enzymes profiles revealed a significant correlation between the increased activity of esterase and deltamethrin resistance. The GST activity was 51.2% correlated with RR50 of malathion while esterase activity was significantly correlated (68.9%) with RR50 of coumaphos. No correlation between the ivermectin resistance and enzyme activity was established. Multiple sequence analysis of S4-5 linker region of the sodium channel gene of all the isolates revealed a point mutation at 190th position (C190A) which is associated with deltamethrin resistance. The possible tick management strategies in this part of the country are discussed.
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Three-Dimensional Culture of Rhipicephalus ( Boophilus) microplus BmVIII-SCC Cells on Multiple Synthetic Scaffold Systems and in Rotating Bioreactors. INSECTS 2021; 12:insects12080747. [PMID: 34442313 PMCID: PMC8396921 DOI: 10.3390/insects12080747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/10/2021] [Accepted: 08/14/2021] [Indexed: 12/12/2022]
Abstract
Tick cell culture facilitates research on the biology of ticks and their role as vectors of pathogens that affect humans, domestic animals, and wildlife. Because two-dimensional cell culture doesn't promote the development of multicellular tissue-like composites, we hypothesized that culturing tick cells in a three-dimensional (3-D) configuration would form spheroids or tissue-like organoids. In this study, the cell line BmVIII-SCC obtained from the cattle fever tick, Rhipicephalus (Boophilus) microplus (Canestrini, 1888), was cultured in different synthetic scaffold systems. Growth of the tick cells on macrogelatinous beads in rotating continuous culture system bioreactors enabled cellular attachment, organization, and development into spheroid-like aggregates, with evidence of tight cellular junctions between adjacent cells and secretion of an extracellular matrix. At least three cell morphologies were identified within the aggregates: fibroblast-like cells, small endothelial-like cells, and larger cells exhibiting multiple cytoplasmic endosomes and granular vesicles. These observations suggest that BmVIII-SCC cells adapted to 3-D culture retain pluripotency. Additional studies involving genomic analyses are needed to determine if BmVIII-SCC cells in 3-D culture mimic tick organs. Applications of 3-D culture to cattle fever tick research are discussed.
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Lima-Duarte L, Camargo JV, Castro-Santiago AC, Machado RZ, André MR, Cabral-de-Mello DC, Camargo-Mathias MI, Ikeda P, Anholeto LA, Pereira MC, da Costa AJ, Barros-Battesti DM. Establishment and characterization of a cell line (RBME-6) of Rhipicephalus (Boophilus) microplus from Brazil. Ticks Tick Borne Dis 2021; 12:101770. [PMID: 34230000 DOI: 10.1016/j.ttbdis.2021.101770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 10/21/2022]
Abstract
Tick cell lines have already proved to be a useful tool for obtaining more information about possible vector species and the factors governing their ability to transmit a pathogen. Here, we established and characterized a cell line (RBME-6) derived from embryos of Rhipicephalus microplus from Brazil. Primary tick cell cultures were prepared in L-15B medium supplemented with 20% fetal bovine serum and 10% tryptose phosphate broth. The cell monolayers were subcultured when they reached a density of approximately 8 × 10 5 cells/mL (95% viability). Only after the sixth subculture were cells thawed from storage in liquid nitrogen successfully. Cytological analyses were performed using live phase contrast microscopy and cytocentrifuge smears stained with Giemsa, while periodic acid-Schiff and bromophenol blue staining techniques were used to detect total polysaccharides and total protein, respectively . No DNA from Anaplasma spp., Anaplasma marginale, Babesia spp., Bartonella spp., Coxiella spp., Ehrlichia canis, Rickettsia spp. or Mycoplasma spp. was detected in the cells through PCR assays. In addition, we performed chromosomal characterization of the tick cell line and confirmed the R. microplus origin of the cell line through conventional PCR and sequencing of a fragment of the mitochondrial 16S rRNA gene. In conclusion, we established and characterized a new cell line from a Brazilian population of R. microplus, which may form a useful tool for studying several aspects of ticks and tick-borne pathogens.
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Affiliation(s)
- Leidiane Lima-Duarte
- Department of Preventive Veterinary Medicine and Animal Science, School of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Jaqueline Valéria Camargo
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Ana Carolina Castro-Santiago
- Department of Preventive Veterinary Medicine and Animal Science, School of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Rosangela Zacarias Machado
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Marcos Rogério André
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Diogo Cavalcanti Cabral-de-Mello
- Department of General and Applied Biology, Institute of Biosciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Rio Claro, SP, Brazil
| | - Maria Izabel Camargo-Mathias
- Department of General and Applied Biology, Institute of Biosciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Rio Claro, SP, Brazil
| | - Priscila Ikeda
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Luís Adriano Anholeto
- Department of General and Applied Biology, Institute of Biosciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Rio Claro, SP, Brazil
| | - Melissa Carolina Pereira
- Department of General and Applied Biology, Institute of Biosciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Rio Claro, SP, Brazil
| | - Alvimar José da Costa
- Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil
| | - Darci Moraes Barros-Battesti
- Department of Preventive Veterinary Medicine and Animal Science, School of Veterinary Medicine, University of São Paulo, São Paulo, SP, Brazil; Department of Pathology, Reproduction and One Health, School of Agricultural and Veterinary Sciences, São Paulo State University "Julio de Mesquita Filho" (UNESP), Jaboticabal, SP, Brazil.
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Sorvillo TE, Rodriguez SE, Hudson P, Carey M, Rodriguez LL, Spiropoulou CF, Bird BH, Spengler JR, Bente DA. Towards a Sustainable One Health Approach to Crimean-Congo Hemorrhagic Fever Prevention: Focus Areas and Gaps in Knowledge. Trop Med Infect Dis 2020; 5:tropicalmed5030113. [PMID: 32645889 PMCID: PMC7558268 DOI: 10.3390/tropicalmed5030113] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 12/13/2022] Open
Abstract
Crimean–Congo hemorrhagic fever virus (CCHFV) infection is identified in the 2018 World Health Organization Research and Development Blueprint and the National Institute of Allergy and Infectious Diseases (NIH/NIAID) priority A list due to its high risk to public health and national security. Tick-borne CCHFV is widespread, found in Europe, Asia, Africa, the Middle East, and the Indian subcontinent. It circulates between ticks and several vertebrate hosts without causing overt disease, and thus can be present in areas without being noticed by the public. As a result, the potential for zoonotic spillover from ticks and animals to humans is high. In contrast to other emerging viruses, human-to-human transmission of CCHFV is typically limited; therefore, prevention of spillover events should be prioritized when considering countermeasures. Several factors in the transmission dynamics of CCHFV, including a complex transmission cycle that involves both ticks and vertebrate hosts, lend themselves to a One Health approach for the prevention and control of the disease that are often overlooked by current strategies. Here, we examine critical focus areas to help mitigate CCHFV spillover, including surveillance, risk assessment, and risk reduction strategies concentrated on humans, animals, and ticks; highlight gaps in knowledge; and discuss considerations for a more sustainable One Health approach to disease control.
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Affiliation(s)
- Teresa E. Sorvillo
- One Health Institute, School of Veterinary Medicine, University of California Davis, 1089 Veterinary Medicine Drive, Davis, CA 95616, USA;
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (S.E.R.); (C.F.S.); (J.R.S.)
- Correspondence: ; Tel.: +1-530-752-7526
| | - Sergio E. Rodriguez
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (S.E.R.); (C.F.S.); (J.R.S.)
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; (M.C.); (D.A.B.)
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Peter Hudson
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA;
| | - Megan Carey
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; (M.C.); (D.A.B.)
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Luis L. Rodriguez
- Foreign Animal Disease Research Unit, Plum Island Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Orient Point, NY 11957, USA;
| | - Christina F. Spiropoulou
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (S.E.R.); (C.F.S.); (J.R.S.)
| | - Brian H. Bird
- One Health Institute, School of Veterinary Medicine, University of California Davis, 1089 Veterinary Medicine Drive, Davis, CA 95616, USA;
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (S.E.R.); (C.F.S.); (J.R.S.)
| | - Jessica R. Spengler
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA; (S.E.R.); (C.F.S.); (J.R.S.)
| | - Dennis A. Bente
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; (M.C.); (D.A.B.)
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX 77555, USA
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Al-Rofaai A, Bell-Sakyi L. Tick Cell Lines in Research on Tick Control. Front Physiol 2020; 11:152. [PMID: 32158404 PMCID: PMC7052283 DOI: 10.3389/fphys.2020.00152] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/12/2020] [Indexed: 12/28/2022] Open
Abstract
Ticks and the diseases they transmit are of huge veterinary, medical and economic importance worldwide. Control of ticks attacking livestock and companion animals is achieved primarily by application of chemical or plant-based acaricides. However, ticks can rapidly develop resistance to any new product brought onto the market, necessitating an ongoing search for novel active compounds and alternative approaches to tick control. Many aspects of tick and tick-borne pathogen research have been facilitated by the application of continuous cell lines derived from some of the most economically important tick species. These include cell lines derived from acaricide-susceptible and resistant ticks, cell sub-lines with in vitro-generated acaricide resistance, and genetically modified tick cells. Although not a replacement for the whole organism, tick cell lines enable studies at the cellular and molecular level and provide a more accessible, more ethical and less expensive in vitro alternative to in vivo tick feeding experiments. Here we review the role played by tick cell lines in studies on acaricide resistance, mode-of-action of acaricides, identification of potential novel control targets through better understanding of tick metabolism, and anti-tick vaccine development, that may lead to new approaches to control ticks and tick-borne diseases.
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Affiliation(s)
- Ahmed Al-Rofaai
- Department of Infection Biology, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
| | - Lesley Bell-Sakyi
- Department of Infection Biology, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom
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Della Noce B, Carvalho Uhl MVD, Machado J, Waltero CF, de Abreu LA, da Silva RM, da Fonseca RN, de Barros CM, Sabadin G, Konnai S, da Silva Vaz I, Ohashi K, Logullo C. Carbohydrate Metabolic Compensation Coupled to High Tolerance to Oxidative Stress in Ticks. Sci Rep 2019; 9:4753. [PMID: 30894596 PMCID: PMC6427048 DOI: 10.1038/s41598-019-41036-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/26/2019] [Indexed: 01/01/2023] Open
Abstract
Reactive oxygen species (ROS) are natural byproducts of metabolism that have toxic effects well documented in mammals. In hematophagous arthropods, however, these processes are not largely understood. Here, we describe that Rhipicephalus microplus ticks and embryonic cell line (BME26) employ an adaptive metabolic compensation mechanism that confers tolerance to hydrogen peroxide (H2O2) at concentrations too high for others organisms. Tick survival and reproduction are not affected by H2O2 exposure, while BME26 cells morphology was only mildly altered by the treatment. Furthermore, H2O2-tolerant BME26 cells maintained their proliferative capacity unchanged. We evaluated several genes involved in gluconeogenesis, glycolysis, and pentose phosphate pathway, major pathways for carbohydrate catabolism and anabolism, describing a metabolic mechanism that explains such tolerance. Genetic and catalytic control of the genes and enzymes associated with these pathways are modulated by glucose uptake and energy resource availability. Transient increase in ROS levels, oxygen consumption, and ROS-scavenger enzymes, as well as decreased mitochondrial superoxide levels, were indicative of cell adaptation to high H2O2 exposure, and suggested a tolerance strategy developed by BME26 cells to cope with oxidative stress. Moreover, NADPH levels increased upon H2O2 challenge, and this phenomenon was sustained mainly by G6PDH activity. Interestingly, G6PDH knockdown in BME26 cells did not impair H2O2 tolerance, but generated an increase in NADP-ICDH transcription. In agreement with the hypothesis of a compensatory NADPH production in these cells, NADP-ICDH knockdown increased G6PDH relative transcript level. The present study unveils the first metabolic evidence of an adaptive mechanism to cope with high H2O2 exposure and maintain redox balance in ticks.
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Affiliation(s)
- Bárbara Della Noce
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Marcelle Vianna de Carvalho Uhl
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Josias Machado
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Camila Fernanda Waltero
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Leonardo Araujo de Abreu
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Renato Martins da Silva
- Laboratory of Infectious Diseases, Hokkaido University, Sapporo, 060-0818, Japan
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Nunes da Fonseca
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil
| | - Cintia Monteiro de Barros
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil
| | - Gabriela Sabadin
- Centro de Biotecnologia and Faculdade de Veterinária - UFRGS, Porto Alegre, RS, Brazil
| | - Satoru Konnai
- Laboratory of Infectious Diseases, Hokkaido University, Sapporo, 060-0818, Japan
| | | | - Kazuhiko Ohashi
- Laboratory of Infectious Diseases, Hokkaido University, Sapporo, 060-0818, Japan
| | - Carlos Logullo
- Laboratório Integrado de Bioquímica Hatisaburo Masuda and Laboratório Integrado de Morfologia, NUPEM-UFRJ, Macaé, RJ, Brazil.
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil.
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Novel and Selective Rhipicephalus microplus Triosephosphate Isomerase Inhibitors with Acaricidal Activity. Vet Sci 2018; 5:vetsci5030074. [PMID: 30142944 PMCID: PMC6163981 DOI: 10.3390/vetsci5030074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/14/2018] [Accepted: 08/20/2018] [Indexed: 12/14/2022] Open
Abstract
The cattle tick Rhipicephalus microplus is one of the most important ectoparasites causing significant economic losses for the cattle industry. The major tool of control is reducing the number of ticks, applying acaricides in cattle. However, overuse has led to selection of resistant populations of R. microplus to most of these products, some even to more than one active principle. Thus, exploration for new molecules with acaricidal activity in R. microplus has become necessary. Triosephosphate isomerase (TIM) is an essential enzyme in R. microplus metabolism and could be an interesting target for the development of new methods for tick control. In this work, we screened 227 compounds, from our in-house chemo-library, against TIM from R. microplus. Four compounds (50, 98, 14, and 161) selectively inhibited this enzyme with IC50 values between 25 and 50 μM. They were also able to diminish cellular viability of BME26 embryonic cells by more than 50% at 50 μM. A molecular docking study showed that the compounds bind in different regions of the protein; compound 14 interacts with the dimer interface. Furthermore, compound 14 affected the survival of partially engorged females, fed artificially, using the capillary technique. This molecule is simple, easy to produce, and important biological data—including toxicological information—are available for it. Our results imply a promising role for compound 14 as a prototype for development of a new acaricidal involving selective TIM inhibition.
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Mangia C, Vismarra A, Genchi M, Epis S, Bandi C, Grandi G, Bell-Sakyi L, Otranto D, Passeri B, Kramer L. Exposure to amitraz, fipronil and permethrin affects cell viability and ABC transporter gene expression in an Ixodes ricinus cell line. Parasit Vectors 2018; 11:437. [PMID: 30064465 PMCID: PMC6069974 DOI: 10.1186/s13071-018-3020-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/16/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Over-expression of ATP-binding cassette (ABC) transporter proteins has been implicated in resistance of ticks to acaricides. Tick cell lines are useful for investigating resistance mechanisms, as development of an in vitro model for the study of acaricide resistance would contribute to improving knowledge of the molecular basis behind drug processing and exclusion in ticks. In the present study, cultures of the Ixodes ricinus-derived cell line IRE/CTVM19 were treated with the acaricides amitraz, permethrin or fipronil to determine modulation of ABC transporter gene expression. Cells were treated with different drug concentrations (25, 50, 100, 150 μM) and incubated for ten days. Cell morphology, viability, metabolic activity and relative expression of ABC (B1, B6, B8 and B10) genes were determined at day 10 post-treatment. RESULTS Cell morphology determined by light microscopy was altered following treatment with all drugs, but only at high concentrations, while total cell numbers decreased with increasing drug dose. Cell viability determined by trypan blue exclusion was not significantly different from untreated controls (P > 0.1) following treatment with amitraz and permethrin, but high concentrations of fipronil caused decrease (up to 37%, P < 0.01) in viability. At all drug concentrations, fipronil and permethrin induced dose-dependent reduction in cell metabolic activity measured by MTT assay (P < 0.01). Quantitative RT-PCR showed that the drugs significantly affected expression of ABC genes. In particular, fipronil treatment downregulated ABCB1 (P < 0.001) and upregulated ABCB6, ABCB8 and ABCB10 (P < 0.01); amitraz treatment down regulated ABCB1 (significant difference between 25 and 150 μM, P < 0.001) and upregulated ABCB8 and ABCB10 at lower concentrations (25 and 50 μM, P < 0.05); and permethrin upregulated ABCB6, ABCB8 and ABCB10 only at 150 μM (P < 0.01). CONCLUSIONS The adverse effects on cell viability and metabolic activity, and changes in expression of different ABC transporter genes, detected in IRE/CTVM19 cells following treatment with amitraz, permethrin and fipronil, support the proposed application of tick cell lines as in vitro models for the study of resistance to these acaricides in ticks.
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Affiliation(s)
- Carlo Mangia
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy.
| | - Alice Vismarra
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy
| | - Marco Genchi
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy
| | - Sara Epis
- Department of Veterinary Sciences and Public Health, University of Milan, 20133, Milan, Italy.,Pediatric Clinical Research Center Romeo and Enrica Invernizzi, Ospedale "Luigi Sacco", 20157, Milan, Italy
| | - Claudio Bandi
- Department of Biosciences, University of Milan, 20133, Milan, Italy.,Pediatric Clinical Research Center Romeo and Enrica Invernizzi, Ospedale "Luigi Sacco", 20157, Milan, Italy
| | - Giulio Grandi
- Department of Biomedical Sciences and Veterinary Public Health (BVF), Swedish University of Agricultural Sciences (SLU), SE-757 56, Uppsala, Sweden
| | - Lesley Bell-Sakyi
- Department of Infection Biology, Institute of Infection and Global Health, University of Liverpool, Liverpool, L3 5RF, UK
| | - Domenico Otranto
- Department of Veterinary Medicine, University of Bari, 70010, Valenzano, Bari, Italy
| | - Benedetta Passeri
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy
| | - Laura Kramer
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy
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Bell-Sakyi L, Darby A, Baylis M, Makepeace BL. The Tick Cell Biobank: A global resource for in vitro research on ticks, other arthropods and the pathogens they transmit. Ticks Tick Borne Dis 2018; 9:1364-1371. [PMID: 29886187 PMCID: PMC6052676 DOI: 10.1016/j.ttbdis.2018.05.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/18/2018] [Accepted: 05/30/2018] [Indexed: 12/11/2022]
Abstract
Tick cell lines are increasingly used in many fields of tick and tick-borne disease research. The Tick Cell Biobank was established in 2009 to facilitate the development and uptake of these unique and valuable resources. As well as serving as a repository for existing and new ixodid and argasid tick cell lines, the Tick Cell Biobank supplies cell lines and training in their maintenance to scientists worldwide and generates novel cultures from tick species not already represented in the collection. Now part of the Institute of Infection and Global Health at the University of Liverpool, the Tick Cell Biobank has embarked on a new phase of activity particularly targeted at research on problems caused by ticks, other arthropods and the diseases they transmit in less-developed, lower- and middle-income countries. We are carrying out genotypic and phenotypic characterisation of selected cell lines derived from tropical tick species. We continue to expand the culture collection, currently comprising 63 cell lines derived from 18 ixodid and argasid tick species and one each from the sand fly Lutzomyia longipalpis and the biting midge Culicoides sonorensis, and are actively engaging with collaborators to obtain starting material for primary cell cultures from other midge species, mites, tsetse flies and bees. Outposts of the Tick Cell Biobank will be set up in Malaysia, Kenya and Brazil to facilitate uptake and exploitation of cell lines and associated training by scientists in these and neighbouring countries. Thus the Tick Cell Biobank will continue to underpin many areas of global research into biology and control of ticks, other arthropods and vector-borne viral, bacterial and protozoan pathogens.
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Affiliation(s)
- Lesley Bell-Sakyi
- Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park IC2, 146 Brownlow Hill, Liverpool L3 5RF, United Kingdom.
| | - Alistair Darby
- Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, United Kingdom.
| | - Matthew Baylis
- Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park IC2, 146 Brownlow Hill, Liverpool L3 5RF, United Kingdom; NIHR Health Protection Research Institute in Emerging and Zoonotic Infections, Institute of Infection and Global Health, University of Liverpool, The Ronald Ross Building, 8 West Derby Street, Liverpool L69 7BE, United Kingdom.
| | - Benjamin L Makepeace
- Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park IC2, 146 Brownlow Hill, Liverpool L3 5RF, United Kingdom.
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15
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Khangembam R, Singh H, Jyoti, Rath SS, Singh NK. Effect of synergists on ivermectin resistance in field populations of Rhipicephalus (Boophilus) microplus from Punjab districts, India. Ticks Tick Borne Dis 2018; 9:682-686. [DOI: 10.1016/j.ttbdis.2018.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 02/06/2018] [Accepted: 02/06/2018] [Indexed: 01/22/2023]
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Whiten SR, Eggleston H, Adelman ZN. Ironing out the Details: Exploring the Role of Iron and Heme in Blood-Sucking Arthropods. Front Physiol 2018; 8:1134. [PMID: 29387018 PMCID: PMC5776124 DOI: 10.3389/fphys.2017.01134] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 12/22/2017] [Indexed: 12/12/2022] Open
Abstract
Heme and iron are essential molecules for many physiological processes and yet have the ability to cause oxidative damage such as lipid peroxidation, protein degradation, and ultimately cell death if not controlled. Blood-sucking arthropods have evolved diverse methods to protect themselves against iron/heme-related damage, as the act of bloodfeeding itself is high risk, high reward process. Protective mechanisms in medically important arthropods include the midgut peritrophic matrix in mosquitoes, heme aggregation into the crystalline structure hemozoin in kissing bugs and hemosomes in ticks. Once heme and iron pass these protective mechanisms they are presumed to enter the midgut epithelial cells via membrane-bound transporters, though relatively few iron or heme transporters have been identified in bloodsucking arthropods. Upon iron entry into midgut epithelial cells, ferritin serves as the universal storage protein and transport for dietary iron in many organisms including arthropods. In addition to its role as a nutrient, heme is also an important signaling molecule in the midgut epithelial cells for many physiological processes including vitellogenesis. This review article will summarize recent advancements in heme/iron uptake, detoxification and exportation in bloodfeeding arthropods. While initial strides have been made at ironing out the role of dietary iron and heme in arthropods, much still remains to be discovered as these molecules may serve as novel targets for the control of many arthropod pests.
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Affiliation(s)
- Shavonn R Whiten
- Department of Entomology, Texas A&M University, College Station, TX, United States
| | - Heather Eggleston
- Genetics Graduate Program, Texas A&M University, College Station, TX, United States
| | - Zach N Adelman
- Department of Entomology, Texas A&M University, College Station, TX, United States
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Koh-Tan HHC, Strachan E, Cooper K, Bell-Sakyi L, Jonsson NN. Identification of a novel β-adrenergic octopamine receptor-like gene (βAOR-like) and increased ATP-binding cassette B10 (ABCB10) expression in a Rhipicephalus microplus cell line derived from acaricide-resistant ticks. Parasit Vectors 2016; 9:425. [PMID: 27484910 PMCID: PMC4970269 DOI: 10.1186/s13071-016-1708-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 07/17/2016] [Indexed: 11/26/2022] Open
Abstract
Background The cattle tick Rhipicephalus (Boophilus) microplus is an economically important parasite of livestock. Effective control of ticks using acaricides is threatened by the emergence of resistance to many existing compounds. Several continuous R. microplus cell lines have been established and provide an under-utilised resource for studies into acaricide targets and potential genetic mutations associated with resistance. As a first step to genetic studies using these resources, this study aimed to determine the presence or absence of two genes and their transcripts that have been linked with acaricide function in cattle ticks: β-adrenergic octopamine receptor (βAOR, associated with amitraz resistance) and ATP-binding cassette B10 (ABCB10, associated with macrocyclic lactone resistance) in six R. microplus cell lines, five other Rhipicephalus spp. cell lines and three cell lines representing other tick genera (Amblyomma variegatum, Ixodes ricinus and Hyalomma anatolicum). Methods End-point polymerase chain reaction (PCR) was used for detection of the βAOR gene and transcripts in DNA and RNA extracted from the tick cell lines, followed by capillary sequencing of amplicons. Quantitative real-time PCR (qPCR) was performed to determine the levels of expression of ABCB10. Results βAOR gene expression was detected in all Rhipicephalus spp. cell lines. We observed a second amplicon of approximately 220 bp for the βAOR gene in the R. microplus cell line BME/CTVM6, derived from acaricide-resistant ticks. Sequencing of this transcript variant identified a 36 bp insertion in the βAOR gene, leading to a 12-amino acid insertion (LLKTLALVTIIS) in the first transmembrane domain of the protein. In addition, nine synonymous SNPs were also discovered in R. appendiculatus, R. evertsi and R. sanguineus cell lines. Some of these SNPs appear to be unique to each species, providing potential tools for differentiating the tick species. The BME/CTVM6 cell line had significantly higher ABCB10 (P = 0.002) expression than the other R. microplus cell lines. Conclusions The present study has identified a new βAOR gene and demonstrated a higher ABCB10 expression level in the BME/CTVM6 cell line, indicating that tick cell lines provide a useful experimental tool for acaricide resistance studies and further elucidation of tick genetics. Electronic supplementary material The online version of this article (doi:10.1186/s13071-016-1708-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- H H Caline Koh-Tan
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, McCall Building, Bearsden Road, Glasgow, G61 1QH, UK
| | - Erin Strachan
- School of Veterinary Medicine, University of Glasgow, Glasgow, G61 1QH, UK
| | - Katherine Cooper
- School of Veterinary Medicine, University of Glasgow, Glasgow, G61 1QH, UK
| | - Lesley Bell-Sakyi
- The Pirbright Institute, Ash Road, Pirbright, Woking, Surrey, GU24 0NF, UK
| | - Nicholas N Jonsson
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, McCall Building, Bearsden Road, Glasgow, G61 1QH, UK.
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Zhao Y, Li Q, Wu X, Chen P. Upregulation of p27Kip1 by demethylation sensitizes cisplatin-resistant human ovarian cancer SKOV3 cells. Mol Med Rep 2016; 14:1659-66. [PMID: 27314502 DOI: 10.3892/mmr.2016.5399] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/29/2016] [Indexed: 11/06/2022] Open
Abstract
Ovarian cancer has a poor prognosis due to its chemoresistance, and p27Kip1 (p27) has been implicated in tumor prognosis and drug-resistance. However, the regulatory mechanisms of p27 in drug‑resistance in ovarian cancer remain unknown. The current study successfully established chemoresistant cell lines using paclitaxel (TAX), cisplatin (DDP) and carboplatin (CBP) in SKOV3 ovarian cancer cells. The results indicated that the expression levels of p27 were dramatically downregulated in chemoresistant cells. However, 5-aza-2'-deoxycytidine (5-aza) treatment restored p27 expression in DDP-resistant cells, and increased their sensitivity to DDP. In addition, it was observed that the methylation of DDP‑resistant cells, which was downregulated by 5‑aza treatment, was significantly higher compared with SKOV3 cells. Additionally, the overexpression of p27 arrested the cell cycle in S phase and promoted an apoptotic response to DDP. In conclusion, p27 was involved in chemoresistance of SKOV3 cells. Upregulated p27 expression induced by demethylation may enhance sensitivity to DDP through the regulation of the cell cycle.
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Affiliation(s)
- Yan Zhao
- Department of Gynecology and Obstetrics, The Maternal and Child Health Hospital of Hunan, Changsha, Hunan 410008, P.R. China
| | - Qiaoyan Li
- Department of Gynecology and Obstetrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Xiaoying Wu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Puxiang Chen
- Department of Gynecology and Obstetrics, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
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19
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Mangia C, Vismarra A, Kramer L, Bell-Sakyi L, Porretta D, Otranto D, Epis S, Grandi G. Evaluation of the in vitro expression of ATP binding-cassette (ABC) proteins in an Ixodes ricinus cell line exposed to ivermectin. Parasit Vectors 2016; 9:215. [PMID: 27090214 PMCID: PMC4835901 DOI: 10.1186/s13071-016-1497-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 04/05/2016] [Indexed: 11/10/2022] Open
Abstract
Background Ticks are among the most important vectors of pathogens causing human and animal disease. Acaricides are used to control tick infestation, although there are increasing reports of resistance. Recently, over-expression of ATP-binding cassette (ABC) transporter proteins (P-glycoproteins, PgP) has been implicated in resistance to the acaricide ivermectin in the ticks Rhipicephalus (Boophilus) microplus and Rhipicephalus sanguineus sensu lato. Ixodid tick cell lines have been used to investigate drug resistance mechanisms. The aim of the present study was to evaluate expression of several PgPs in the Ixodes ricinus-derived cell line IRE/CTVM19 and to determine modulation of expression following treatment with ivermectin. Findings IRE/CTVM19 cells were treated with different concentrations of ivermectin (0, 11, 22 or 33 μM) and incubated for 10 days. Evaluation of viability and relative expression of ABCB1, ABCB6, ABCB8 and ABCB10 genes were carried out at day 10 post treatment. Cell viability ranged between 84 % and 92 % with no significant differences between untreated and treated cells. qRT-PCR showed that ABC pump expression was not significantly modulated by ivermectin treatment. Expression of the ABCB8 PgP subfamily revealed a biphasic trend, based on the ivermectin concentration. ABCB6 and ABCB10 gene expression was not modulated by ivermectin treatment and ABCB1 expression was not detected. Conclusions This is the first report of PgP expression in an I. ricinus-derived tick cell line. Development of an in vitro model for the study of acaricide resistance mechanisms would greatly facilitate screening for drug resistance in ticks.
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Affiliation(s)
- Carlo Mangia
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy
| | - Alice Vismarra
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy
| | - Laura Kramer
- Department of Veterinary Sciences, University of Parma, 43126, Parma, Italy.
| | - Lesley Bell-Sakyi
- The Pirbright Institute, Ash Road, Pirbright, Surrey GU24 0NF, Pirbright, UK
| | - Daniele Porretta
- Department of Environmental Biology, University of Rome 'La Sapienza', Rome, Italy
| | - Domenico Otranto
- Department of Veterinary Medicine, University of Bari, 70010, Bari, Italy
| | - Sara Epis
- Department of Veterinary Science and Public Health, University of Milan, Milan, Italy
| | - Giulio Grandi
- National Veterinary Institute, SVA, SE-751 89, Uppsala, Sweden
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20
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Guseman AJ, Miller K, Kunkle G, Dively GP, Pettis JS, Evans JD, vanEngelsdorp D, Hawthorne DJ. Multi-Drug Resistance Transporters and a Mechanism-Based Strategy for Assessing Risks of Pesticide Combinations to Honey Bees. PLoS One 2016; 11:e0148242. [PMID: 26840460 PMCID: PMC4740413 DOI: 10.1371/journal.pone.0148242] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 01/16/2016] [Indexed: 11/25/2022] Open
Abstract
Annual losses of honey bee colonies remain high and pesticide exposure is one possible cause. Dangerous combinations of pesticides, plant-produced compounds and antibiotics added to hives may cause or contribute to losses, but it is very difficult to test the many combinations of those compounds that bees encounter. We propose a mechanism-based strategy for simplifying the assessment of combinations of compounds, focusing here on compounds that interact with xenobiotic handling ABC transporters. We evaluate the use of ivermectin as a model substrate for these transporters. Compounds that increase sensitivity of bees to ivermectin may be inhibiting key transporters. We show that several compounds commonly encountered by honey bees (fumagillin, Pristine, quercetin) significantly increased honey bee mortality due to ivermectin and significantly reduced the LC50 of ivermectin suggesting that they may interfere with transporter function. These inhibitors also significantly increased honey bees sensitivity to the neonicotinoid insecticide acetamiprid. This mechanism-based strategy may dramatically reduce the number of tests needed to assess the possibility of adverse combinations among pesticides. We also demonstrate an in vivo transporter assay that provides physical evidence of transporter inhibition by tracking the dynamics of a fluorescent substrate of these transporters (Rhodamine B) in bee tissues. Significantly more Rhodamine B remains in the head and hemolymph of bees pretreated with higher concentrations of the transporter inhibitor verapamil. Mechanism-based strategies for simplifying the assessment of adverse chemical interactions such as described here could improve our ability to identify those combinations that pose significantly greater risk to bees and perhaps improve the risk assessment protocols for honey bees and similar sensitive species.
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Affiliation(s)
- Alex J. Guseman
- Department of Entomology, University of Maryland, College Park, Maryland, United States of America
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Kaliah Miller
- Department of Entomology, University of Maryland, College Park, Maryland, United States of America
| | - Grace Kunkle
- Department of Entomology, University of Maryland, College Park, Maryland, United States of America
| | - Galen P. Dively
- Department of Entomology, University of Maryland, College Park, Maryland, United States of America
| | - Jeffrey S. Pettis
- Bee Research Laboratory, United States Department of Agriculture–Agricultural Research Service, Beltsville, Maryland, United States of America
| | - Jay D. Evans
- Bee Research Laboratory, United States Department of Agriculture–Agricultural Research Service, Beltsville, Maryland, United States of America
| | - Dennis vanEngelsdorp
- Department of Entomology, University of Maryland, College Park, Maryland, United States of America
| | - David J. Hawthorne
- Department of Entomology, University of Maryland, College Park, Maryland, United States of America
- * E-mail:
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ATP Binding Cassette Transporter Mediates Both Heme and Pesticide Detoxification in Tick Midgut Cells. PLoS One 2015; 10:e0134779. [PMID: 26258982 PMCID: PMC4530934 DOI: 10.1371/journal.pone.0134779] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 07/14/2015] [Indexed: 11/23/2022] Open
Abstract
In ticks, the digestion of blood occurs intracellularly and proteolytic digestion of hemoglobin takes place in a dedicated type of lysosome, the digest vesicle, followed by transfer of the heme moiety of hemoglobin to a specialized organelle that accumulates large heme aggregates, called hemosomes. In the present work, we studied the uptake of fluorescent metalloporphyrins, used as heme analogs, and amitraz, one of the most regularly used acaricides to control cattle tick infestations, by Rhipicephalus (Boophilus) microplus midgut cells. Both compounds were taken up by midgut cells in vitro and accumulated inside the hemosomes. Transport of both molecules was sensitive to cyclosporine A (CsA), a well-known inhibitor of ATP binding cassette (ABC) transporters. Rhodamine 123, a fluorescent probe that is also a recognized ABC substrate, was similarly directed to the hemosome in a CsA-sensitive manner. Using an antibody against conserved domain of PgP-1-type ABC transporter, we were able to immunolocalize PgP-1 in the digest vesicle membranes. Comparison between two R. microplus strains that were resistant and susceptible to amitraz revealed that the resistant strain detoxified both amitraz and Sn-Pp IX more efficiently than the susceptible strain, a process that was also sensitive to CsA. A transcript containing an ABC transporter signature exhibited 2.5-fold increased expression in the amitraz-resistant strain when compared with the susceptible strain. RNAi-induced down-regulation of this ABC transporter led to the accumulation of metalloporphyrin in the digestive vacuole, interrupting heme traffic to the hemosome. This evidence further confirms that this transcript codes for a heme transporter. This is the first report of heme transport in a blood-feeding organism. While the primary physiological function of the hemosome is to detoxify heme and attenuate its toxicity, we suggest that the use of this acaricide detoxification pathway by ticks may represent a new molecular mechanism of resistance to pesticides.
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Cafarchia C, Porretta D, Mastrantonio V, Epis S, Sassera D, Iatta R, Immediato D, Ramos RAN, Lia RP, Dantas-Torres F, Kramer L, Urbanelli S, Otranto D. Potential role of ATP-binding cassette transporters against acaricides in the brown dog tick Rhipicephalus sanguineus sensu lato. MEDICAL AND VETERINARY ENTOMOLOGY 2015; 29:88-93. [PMID: 25530472 DOI: 10.1111/mve.12093] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/16/2014] [Accepted: 11/07/2014] [Indexed: 06/04/2023]
Abstract
ATP-binding cassette (ABC) transporters have been shown to be involved in pesticide detoxification in arthropod vectors and are thought to contribute to the development of drug resistance. Little is currently known about the role they play in ticks, which are among the more important vectors of human and animal pathogens. Here, the role of ABC transporters in the transport of fipronil and ivermectin acaricides in the tick Rhipicephalus sanguineus (Ixodida: Ixodidae) was investigated. Larvae were treated with acaricide alone and acaricide in combination with a sub-lethal dose of the ABC transporter inhibitor cyclosporine A. The LC50 doses and 95% confidence intervals (CIs) estimated by mortality data using probit analysis were 67.930 p.p.m. (95% CI 53.780-90.861) for fipronil and 3741 p.p.m. (95% CI 2857-4647) for ivermectin. The pre-exposure of larvae to a sub-lethal dose of cyclosporine A reduced the LC50 dose of fipronil to 4.808 p.p.m. (95% CI 0.715-9.527) and that of ivermectin to 167 p.p.m. (95% CI 15-449), which increased toxicity by about 14- and 22-fold, respectively. The comparison of mortality data for each separate acaricide concentration showed the synergic effect of cyclosporine A to be reduced at higher concentrations of acaricide. These results show for the first time a strong association between ABC transporters and acaricide detoxification in R.sanguineus s.l.
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Affiliation(s)
- C Cafarchia
- Department of Veterinary Medicine, University 'Aldo Moro' of Bari, Bari, Italy
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