Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.

Huntington's disease (HD) is caused by an expansion of the CAG trinucleotide repeat domain in the huntingtin gene that results in expression of a mutant huntingtin protein (mHTT) containing an expanded polyglutamine tract in the amino terminus. A number of therapeutic approaches that aim to red...

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Main Authors: David F Fischer, Sipke Dijkstra, Kimberly Lo, Johnny Suijker, Ana C P Correia, Patricia Naud, Martin Poirier, Michela A Tessari, Ivette Boogaard, Geraldine Flynn, Mijke Visser, Marieke B A C Lamers, George McAllister, Ignacio Munoz-Sanjuan, Douglas Macdonald
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0266812
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author David F Fischer
Sipke Dijkstra
Kimberly Lo
Johnny Suijker
Ana C P Correia
Patricia Naud
Martin Poirier
Michela A Tessari
Ivette Boogaard
Geraldine Flynn
Mijke Visser
Marieke B A C Lamers
George McAllister
Ignacio Munoz-Sanjuan
Douglas Macdonald
author_facet David F Fischer
Sipke Dijkstra
Kimberly Lo
Johnny Suijker
Ana C P Correia
Patricia Naud
Martin Poirier
Michela A Tessari
Ivette Boogaard
Geraldine Flynn
Mijke Visser
Marieke B A C Lamers
George McAllister
Ignacio Munoz-Sanjuan
Douglas Macdonald
author_sort David F Fischer
collection DOAJ
description Huntington's disease (HD) is caused by an expansion of the CAG trinucleotide repeat domain in the huntingtin gene that results in expression of a mutant huntingtin protein (mHTT) containing an expanded polyglutamine tract in the amino terminus. A number of therapeutic approaches that aim to reduce mHTT expression either locally in the CNS or systemically are in clinical development. We have previously described sensitive and selective assays that measure human HTT proteins either in a polyglutamine-independent (detecting both mutant expanded and non-expanded proteins) or in a polyglutamine length-dependent manner (detecting the disease-causing polyglutamine repeats) on the electrochemiluminescence Meso Scale Discovery detection platform. These original assays relied upon polyclonal antibodies. To ensure an accessible and sustainable resource for the HD field, we developed similar assays employing monoclonal antibodies. We demonstrate that these assays have equivalent sensitivity compared to our previous assays through the evaluation of cellular and animal model systems, as well as HD patient biosamples. We also demonstrate cross-site validation of these assays, allowing direct comparison of studies performed in geographically distinct laboratories.
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spelling doaj.art-d40329dcbdbd4ce6b214f506ecdfe85c2022-12-22T02:38:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01174e026681210.1371/journal.pone.0266812Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.David F FischerSipke DijkstraKimberly LoJohnny SuijkerAna C P CorreiaPatricia NaudMartin PoirierMichela A TessariIvette BoogaardGeraldine FlynnMijke VisserMarieke B A C LamersGeorge McAllisterIgnacio Munoz-SanjuanDouglas MacdonaldHuntington's disease (HD) is caused by an expansion of the CAG trinucleotide repeat domain in the huntingtin gene that results in expression of a mutant huntingtin protein (mHTT) containing an expanded polyglutamine tract in the amino terminus. A number of therapeutic approaches that aim to reduce mHTT expression either locally in the CNS or systemically are in clinical development. We have previously described sensitive and selective assays that measure human HTT proteins either in a polyglutamine-independent (detecting both mutant expanded and non-expanded proteins) or in a polyglutamine length-dependent manner (detecting the disease-causing polyglutamine repeats) on the electrochemiluminescence Meso Scale Discovery detection platform. These original assays relied upon polyclonal antibodies. To ensure an accessible and sustainable resource for the HD field, we developed similar assays employing monoclonal antibodies. We demonstrate that these assays have equivalent sensitivity compared to our previous assays through the evaluation of cellular and animal model systems, as well as HD patient biosamples. We also demonstrate cross-site validation of these assays, allowing direct comparison of studies performed in geographically distinct laboratories.https://doi.org/10.1371/journal.pone.0266812
spellingShingle David F Fischer
Sipke Dijkstra
Kimberly Lo
Johnny Suijker
Ana C P Correia
Patricia Naud
Martin Poirier
Michela A Tessari
Ivette Boogaard
Geraldine Flynn
Mijke Visser
Marieke B A C Lamers
George McAllister
Ignacio Munoz-Sanjuan
Douglas Macdonald
Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.
PLoS ONE
title Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.
title_full Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.
title_fullStr Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.
title_full_unstemmed Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.
title_short Development of mAb-based polyglutamine-dependent and polyglutamine length-independent huntingtin quantification assays with cross-site validation.
title_sort development of mab based polyglutamine dependent and polyglutamine length independent huntingtin quantification assays with cross site validation
url https://doi.org/10.1371/journal.pone.0266812
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