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Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores
BACKGROUND: Macrocyclic lactones are arguably the most successful chemical class with efficacy against parasitic nematodes. Here we investigated the effect of the macrocyclic lactone ivermectin on lipid homeostasis in the plant parasitic nematode Globodera pallida and provide new insight into its mo...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley & Sons, Ltd
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5698734/ https://www.ncbi.nlm.nih.gov/pubmed/28834172 http://dx.doi.org/10.1002/ps.4707 |
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author | Smus, Justyna P Ludlow, Elizabeth Dallière, Nicolas Luedtke, Sarah Monfort, Tual Lilley, Catherine Urwin, Peter Walker, Robert J O'Connor, Vincent Holden‐Dye, Lindy Mahajan, Sumeet |
author_facet | Smus, Justyna P Ludlow, Elizabeth Dallière, Nicolas Luedtke, Sarah Monfort, Tual Lilley, Catherine Urwin, Peter Walker, Robert J O'Connor, Vincent Holden‐Dye, Lindy Mahajan, Sumeet |
author_sort | Smus, Justyna P |
collection | PubMed |
description | BACKGROUND: Macrocyclic lactones are arguably the most successful chemical class with efficacy against parasitic nematodes. Here we investigated the effect of the macrocyclic lactone ivermectin on lipid homeostasis in the plant parasitic nematode Globodera pallida and provide new insight into its mode of action. RESULTS: A non‐invasive, non‐destructive, label‐free and chemically selective technique called Coherent anti‐Stokes Raman scattering (CARS) spectroscopy was used to study lipid stores in G. pallida. We optimised the protocol using the free‐living nematode Caenorhabditis elegans and then used CARS to quantify lipid stores in the pre‐parasitic, non‐feeding J2 stage of G. pallida. This revealed a concentration of lipid stores in the posterior region of J2 s within 24 h of hatching which decreased to undetectable levels over the course of 28 days. We tested the effect of ivermectin on J2 viability and lipid stores. Within 24 h, ivermectin paralysed J2 s. Counterintuitively, over the same time‐course ivermectin increased the rate of depletion of J2 lipid, suggesting that in ivermectin‐treated J2 s there is a disconnection between the energy requirements for motility and metabolic rate. This decrease in lipid stores would be predicted to negatively impact on J2 infective potential. CONCLUSION: These data suggest that the benefit of macrocyclic lactones as seed treatments may be underpinned by a multilevel effect involving both neuromuscular inhibition and acceleration of lipid metabolism. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. |
format | Online Article Text |
id | pubmed-5698734 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | John Wiley & Sons, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-56987342017-11-30 Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores Smus, Justyna P Ludlow, Elizabeth Dallière, Nicolas Luedtke, Sarah Monfort, Tual Lilley, Catherine Urwin, Peter Walker, Robert J O'Connor, Vincent Holden‐Dye, Lindy Mahajan, Sumeet Pest Manag Sci Research Articles BACKGROUND: Macrocyclic lactones are arguably the most successful chemical class with efficacy against parasitic nematodes. Here we investigated the effect of the macrocyclic lactone ivermectin on lipid homeostasis in the plant parasitic nematode Globodera pallida and provide new insight into its mode of action. RESULTS: A non‐invasive, non‐destructive, label‐free and chemically selective technique called Coherent anti‐Stokes Raman scattering (CARS) spectroscopy was used to study lipid stores in G. pallida. We optimised the protocol using the free‐living nematode Caenorhabditis elegans and then used CARS to quantify lipid stores in the pre‐parasitic, non‐feeding J2 stage of G. pallida. This revealed a concentration of lipid stores in the posterior region of J2 s within 24 h of hatching which decreased to undetectable levels over the course of 28 days. We tested the effect of ivermectin on J2 viability and lipid stores. Within 24 h, ivermectin paralysed J2 s. Counterintuitively, over the same time‐course ivermectin increased the rate of depletion of J2 lipid, suggesting that in ivermectin‐treated J2 s there is a disconnection between the energy requirements for motility and metabolic rate. This decrease in lipid stores would be predicted to negatively impact on J2 infective potential. CONCLUSION: These data suggest that the benefit of macrocyclic lactones as seed treatments may be underpinned by a multilevel effect involving both neuromuscular inhibition and acceleration of lipid metabolism. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. John Wiley & Sons, Ltd 2017-09-25 2017-12 /pmc/articles/PMC5698734/ /pubmed/28834172 http://dx.doi.org/10.1002/ps.4707 Text en © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Smus, Justyna P Ludlow, Elizabeth Dallière, Nicolas Luedtke, Sarah Monfort, Tual Lilley, Catherine Urwin, Peter Walker, Robert J O'Connor, Vincent Holden‐Dye, Lindy Mahajan, Sumeet Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
title | Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
title_full | Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
title_fullStr | Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
title_full_unstemmed | Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
title_short | Coherent anti‐Stokes Raman scattering (CARS) spectroscopy in Caenorhabditis elegans and Globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
title_sort | coherent anti‐stokes raman scattering (cars) spectroscopy in caenorhabditis elegans and globodera pallida: evidence for an ivermectin‐activated decrease in lipid stores |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5698734/ https://www.ncbi.nlm.nih.gov/pubmed/28834172 http://dx.doi.org/10.1002/ps.4707 |
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