Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome

In nematodes that invade the gastro-intestinal tract of the ruminant, the process of larval exsheathment marks the transition from the free-living to the parasitic stages of these parasites. To investigate the secretome associated with larval exsheathment, a closed in vitro system that effectively r...

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Main Authors: Nikola Palevich, Paul H. Maclean, Paul M. Candy, Wendy Taylor, Ivona Mladineo, Mingshu Cao
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/16/2525
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author Nikola Palevich
Paul H. Maclean
Paul M. Candy
Wendy Taylor
Ivona Mladineo
Mingshu Cao
author_facet Nikola Palevich
Paul H. Maclean
Paul M. Candy
Wendy Taylor
Ivona Mladineo
Mingshu Cao
author_sort Nikola Palevich
collection DOAJ
description In nematodes that invade the gastro-intestinal tract of the ruminant, the process of larval exsheathment marks the transition from the free-living to the parasitic stages of these parasites. To investigate the secretome associated with larval exsheathment, a closed in vitro system that effectively reproduces the two basic components of an anaerobic rumen environment (CO<sub>2</sub> and 39 °C) was developed to trigger exsheathment in one of the most pathogenic and model gastrointestinal parasitic nematodes, <i>Haemonchus contortus</i> (barber‘s pole worm). This study reports the use of multimodal untargeted metabolomics and lipidomics methodologies to identify the metabolic signatures and compounds secreted during in vitro larval exsheathment in the <i>H. contortus</i> infective third-stage larva (iL3). A combination of statistical and chemoinformatic analyses using three analytical platforms revealed a panel of metabolites detected post exsheathment and associated with amino acids, purines, as well as select organic compounds. The major lipid classes identified by the non-targeted lipidomics method applied were lysophosphatidylglycerols, diglycerides, fatty acyls, glycerophospholipids, and a triglyceride. The identified metabolites may serve as metabolic signatures to improve tractability of parasitic nematodes for characterizing small molecule host–parasite interactions related to pathogenesis, vaccine and drug design, as well as the discovery of metabolic biomarkers.
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spelling doaj.art-9dbabcc9c7f749a0ab02801cebc088122023-12-03T13:27:06ZengMDPI AGCells2073-44092022-08-011116252510.3390/cells11162525Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment SecretomeNikola Palevich0Paul H. Maclean1Paul M. Candy2Wendy Taylor3Ivona Mladineo4Mingshu Cao5AgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New ZealandAgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New ZealandAgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New ZealandAgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New ZealandLaboratory of Functional Helminthology, Institute of Parasitology, Biology Centre of Czech Academy of Science, 37005 Ceske Budejovice, Czech RepublicAgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New ZealandIn nematodes that invade the gastro-intestinal tract of the ruminant, the process of larval exsheathment marks the transition from the free-living to the parasitic stages of these parasites. To investigate the secretome associated with larval exsheathment, a closed in vitro system that effectively reproduces the two basic components of an anaerobic rumen environment (CO<sub>2</sub> and 39 °C) was developed to trigger exsheathment in one of the most pathogenic and model gastrointestinal parasitic nematodes, <i>Haemonchus contortus</i> (barber‘s pole worm). This study reports the use of multimodal untargeted metabolomics and lipidomics methodologies to identify the metabolic signatures and compounds secreted during in vitro larval exsheathment in the <i>H. contortus</i> infective third-stage larva (iL3). A combination of statistical and chemoinformatic analyses using three analytical platforms revealed a panel of metabolites detected post exsheathment and associated with amino acids, purines, as well as select organic compounds. The major lipid classes identified by the non-targeted lipidomics method applied were lysophosphatidylglycerols, diglycerides, fatty acyls, glycerophospholipids, and a triglyceride. The identified metabolites may serve as metabolic signatures to improve tractability of parasitic nematodes for characterizing small molecule host–parasite interactions related to pathogenesis, vaccine and drug design, as well as the discovery of metabolic biomarkers.https://www.mdpi.com/2073-4409/11/16/2525<i>Haemonchus contortus</i>metabolomicslipidomicshelminthparasiteexsheathment
spellingShingle Nikola Palevich
Paul H. Maclean
Paul M. Candy
Wendy Taylor
Ivona Mladineo
Mingshu Cao
Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome
Cells
<i>Haemonchus contortus</i>
metabolomics
lipidomics
helminth
parasite
exsheathment
title Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome
title_full Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome
title_fullStr Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome
title_full_unstemmed Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome
title_short Untargeted Multimodal Metabolomics Investigation of the <i>Haemonchus contortus</i> Exsheathment Secretome
title_sort untargeted multimodal metabolomics investigation of the i haemonchus contortus i exsheathment secretome
topic <i>Haemonchus contortus</i>
metabolomics
lipidomics
helminth
parasite
exsheathment
url https://www.mdpi.com/2073-4409/11/16/2525
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