La maladie de Parkinson au Canada (serveur d'exploration)

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UWA-121, a mixed dopamine and serotonin re-uptake inhibitor, enhances L-DOPA anti-parkinsonian action without worsening dyskinesia or psychosis-like behaviours in the MPTP-lesioned common marmoset.

Identifieur interne : 000616 ( PubMed/Checkpoint ); précédent : 000615; suivant : 000617

UWA-121, a mixed dopamine and serotonin re-uptake inhibitor, enhances L-DOPA anti-parkinsonian action without worsening dyskinesia or psychosis-like behaviours in the MPTP-lesioned common marmoset.

Auteurs : Philippe Huot [Canada] ; Tom H. Johnston [Canada] ; Katie D. Lewis [Australie] ; James B. Koprich [Canada] ; M Gabriela Reyes [Canada] ; Susan H. Fox [Canada] ; Matthew J. Piggott [Australie] ; Jonathan M. Brotchie [Canada]

Source :

RBID : pubmed:24447715

English descriptors

Abstract

L-3,4-Dihydroxyphenylalanine (L-DOPA) is the most effective treatment for Parkinson's disease (PD), but its long-term administration is complicated by wearing-off and dyskinesia. UWA-101, a dual, equipotent inhibitor of dopamine (DAT) and serotonin (SERT) transporters, has previously been shown to successfully extend duration of anti-parkinsonian benefit of L-DOPA (ON-time), without exacerbating dyskinesia, in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned marmoset. However, UWA-101 is racemic and it is unclear whether one or both enantiomers contribute to its actions, and whether a better therapeutic effect might be attained by using a single antipode. In the current study, we synthesised the two enantiomers of UWA-101, R-101 (UWA-121) and S-101 (UWA-122), characterised their pharmacological profiles and administered them to MPTP-lesioned marmosets. Parkinsonism, dyskinesia, psychosis-like behaviours and duration of ON-time were evaluated. UWA-121 is a dual DAT > SERT inhibitor, with an approximate 10:1 DAT:SERT affinity ratio (inhibitory constants (Ki) of 307 and 3830 nM, respectively). In combination with L-DOPA, UWA-121 extended duration of ON-time when compared to L-DOPA/vehicle treatment (by 40%, P < 0.01). UWA-121 also extended duration of ON-time without dyskinesia (by 215%, P < 0.05) and ON-time without psychosis-like behaviours when compared to L-DOPA/vehicle treatment (by 345%, P < 0.01). UWA-121 did not worsen the severity of dyskinesia or psychosis-like behaviours (P > 0.05). UWA-122 is a selective SERT inhibitor (Ki 120 nM, Ki at DAT > 50 μM) and, in combination with L-DOPA, had no effect on ON-time, dyskinesia or psychosis-like behaviours (P > 0.05). These data indicate that dual DAT and SERT inhibitors effectively enhance L-DOPA anti-parkinsonian action without worsening dyskinesia and that compounds with such a pharmacological profile represent promising agents against wearing-off in PD.

DOI: 10.1016/j.neuropharm.2014.01.012
PubMed: 24447715


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<div type="abstract" xml:lang="en">L-3,4-Dihydroxyphenylalanine (L-DOPA) is the most effective treatment for Parkinson's disease (PD), but its long-term administration is complicated by wearing-off and dyskinesia. UWA-101, a dual, equipotent inhibitor of dopamine (DAT) and serotonin (SERT) transporters, has previously been shown to successfully extend duration of anti-parkinsonian benefit of L-DOPA (ON-time), without exacerbating dyskinesia, in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned marmoset. However, UWA-101 is racemic and it is unclear whether one or both enantiomers contribute to its actions, and whether a better therapeutic effect might be attained by using a single antipode. In the current study, we synthesised the two enantiomers of UWA-101, R-101 (UWA-121) and S-101 (UWA-122), characterised their pharmacological profiles and administered them to MPTP-lesioned marmosets. Parkinsonism, dyskinesia, psychosis-like behaviours and duration of ON-time were evaluated. UWA-121 is a dual DAT > SERT inhibitor, with an approximate 10:1 DAT:SERT affinity ratio (inhibitory constants (Ki) of 307 and 3830 nM, respectively). In combination with L-DOPA, UWA-121 extended duration of ON-time when compared to L-DOPA/vehicle treatment (by 40%, P < 0.01). UWA-121 also extended duration of ON-time without dyskinesia (by 215%, P < 0.05) and ON-time without psychosis-like behaviours when compared to L-DOPA/vehicle treatment (by 345%, P < 0.01). UWA-121 did not worsen the severity of dyskinesia or psychosis-like behaviours (P > 0.05). UWA-122 is a selective SERT inhibitor (Ki 120 nM, Ki at DAT > 50 μM) and, in combination with L-DOPA, had no effect on ON-time, dyskinesia or psychosis-like behaviours (P > 0.05). These data indicate that dual DAT and SERT inhibitors effectively enhance L-DOPA anti-parkinsonian action without worsening dyskinesia and that compounds with such a pharmacological profile represent promising agents against wearing-off in PD.</div>
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<AbstractText>L-3,4-Dihydroxyphenylalanine (L-DOPA) is the most effective treatment for Parkinson's disease (PD), but its long-term administration is complicated by wearing-off and dyskinesia. UWA-101, a dual, equipotent inhibitor of dopamine (DAT) and serotonin (SERT) transporters, has previously been shown to successfully extend duration of anti-parkinsonian benefit of L-DOPA (ON-time), without exacerbating dyskinesia, in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-lesioned marmoset. However, UWA-101 is racemic and it is unclear whether one or both enantiomers contribute to its actions, and whether a better therapeutic effect might be attained by using a single antipode. In the current study, we synthesised the two enantiomers of UWA-101, R-101 (UWA-121) and S-101 (UWA-122), characterised their pharmacological profiles and administered them to MPTP-lesioned marmosets. Parkinsonism, dyskinesia, psychosis-like behaviours and duration of ON-time were evaluated. UWA-121 is a dual DAT > SERT inhibitor, with an approximate 10:1 DAT:SERT affinity ratio (inhibitory constants (Ki) of 307 and 3830 nM, respectively). In combination with L-DOPA, UWA-121 extended duration of ON-time when compared to L-DOPA/vehicle treatment (by 40%, P < 0.01). UWA-121 also extended duration of ON-time without dyskinesia (by 215%, P < 0.05) and ON-time without psychosis-like behaviours when compared to L-DOPA/vehicle treatment (by 345%, P < 0.01). UWA-121 did not worsen the severity of dyskinesia or psychosis-like behaviours (P > 0.05). UWA-122 is a selective SERT inhibitor (Ki 120 nM, Ki at DAT > 50 μM) and, in combination with L-DOPA, had no effect on ON-time, dyskinesia or psychosis-like behaviours (P > 0.05). These data indicate that dual DAT and SERT inhibitors effectively enhance L-DOPA anti-parkinsonian action without worsening dyskinesia and that compounds with such a pharmacological profile represent promising agents against wearing-off in PD.</AbstractText>
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<Affiliation>Toronto Western Research Institute, Krembil Discovery Tower, 8KD-402, 60 Leonard Street, Toronto, ON M5T 2S8, Canada.</Affiliation>
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<ForeName>Susan H</ForeName>
<Initials>SH</Initials>
<AffiliationInfo>
<Affiliation>Toronto Western Research Institute, Krembil Discovery Tower, 8KD-402, 60 Leonard Street, Toronto, ON M5T 2S8, Canada; Division of Neurology, Movement Disorder Clinic, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Toronto, ON M5T 2S8, Canada.</Affiliation>
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<LastName>Piggott</LastName>
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<Affiliation>School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, 35 Stirling Highway, Perth 6009, Australia. Electronic address: matthew.piggott@uwa.edu.au.</Affiliation>
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<LastName>Brotchie</LastName>
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<Initials>JM</Initials>
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<Affiliation>Toronto Western Research Institute, Krembil Discovery Tower, 8KD-402, 60 Leonard Street, Toronto, ON M5T 2S8, Canada. Electronic address: brotchie@uhnres.utoronto.ca.</Affiliation>
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<Month>01</Month>
<Day>18</Day>
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<Country>England</Country>
<MedlineTA>Neuropharmacology</MedlineTA>
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<NameOfSubstance UI="D017367">Serotonin Uptake Inhibitors</NameOfSubstance>
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<NameOfSubstance UI="D007980">Levodopa</NameOfSubstance>
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<QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName>
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<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
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<MeshHeading>
<DescriptorName UI="D052117" MajorTopicYN="N">Benzodioxoles</DescriptorName>
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<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
<QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D002144" MajorTopicYN="N">Callithrix</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D018765" MajorTopicYN="N">Dopamine Uptake Inhibitors</DescriptorName>
<QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D004359" MajorTopicYN="N">Drug Therapy, Combination</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D004409" MajorTopicYN="N">Dyskinesia, Drug-Induced</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D007980" MajorTopicYN="N">Levodopa</DescriptorName>
<QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName>
<QualifierName UI="Q000494" MajorTopicYN="Y">pharmacology</QualifierName>
</MeshHeading>
<MeshHeading>
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<QualifierName UI="Q000139" MajorTopicYN="N">chemically induced</QualifierName>
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<MeshHeading>
<DescriptorName UI="D008744" MajorTopicYN="N">Methylamines</DescriptorName>
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<DescriptorName UI="D015394" MajorTopicYN="N">Molecular Structure</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D009043" MajorTopicYN="N">Motor Activity</DescriptorName>
<QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D020734" MajorTopicYN="N">Parkinsonian Disorders</DescriptorName>
<QualifierName UI="Q000188" MajorTopicYN="Y">drug therapy</QualifierName>
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<MeshHeading>
<DescriptorName UI="D017207" MajorTopicYN="N">Rats, Sprague-Dawley</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D017367" MajorTopicYN="N">Serotonin Uptake Inhibitors</DescriptorName>
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<Keyword MajorTopicYN="N">Dyskinesia</Keyword>
<Keyword MajorTopicYN="N">MPTP</Keyword>
<Keyword MajorTopicYN="N">ON-time</Keyword>
<Keyword MajorTopicYN="N">Parkinson's disease</Keyword>
<Keyword MajorTopicYN="N">UWA-121</Keyword>
<Keyword MajorTopicYN="N">l-DOPA</Keyword>
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<PubMedPubDate PubStatus="revised">
<Year>2013</Year>
<Month>11</Month>
<Day>29</Day>
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<PubMedPubDate PubStatus="accepted">
<Year>2014</Year>
<Month>01</Month>
<Day>07</Day>
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<Month>1</Month>
<Day>23</Day>
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<PubMedPubDate PubStatus="medline">
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<Month>1</Month>
<Day>13</Day>
<Hour>6</Hour>
<Minute>0</Minute>
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</History>
<PublicationStatus>ppublish</PublicationStatus>
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<ArticleId IdType="pubmed">24447715</ArticleId>
<ArticleId IdType="pii">S0028-3908(14)00019-7</ArticleId>
<ArticleId IdType="doi">10.1016/j.neuropharm.2014.01.012</ArticleId>
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<list>
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<li>Australie</li>
<li>Canada</li>
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<name sortKey="Huot, Philippe" sort="Huot, Philippe" uniqKey="Huot P" first="Philippe" last="Huot">Philippe Huot</name>
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<name sortKey="Brotchie, Jonathan M" sort="Brotchie, Jonathan M" uniqKey="Brotchie J" first="Jonathan M" last="Brotchie">Jonathan M. Brotchie</name>
<name sortKey="Fox, Susan H" sort="Fox, Susan H" uniqKey="Fox S" first="Susan H" last="Fox">Susan H. Fox</name>
<name sortKey="Johnston, Tom H" sort="Johnston, Tom H" uniqKey="Johnston T" first="Tom H" last="Johnston">Tom H. Johnston</name>
<name sortKey="Koprich, James B" sort="Koprich, James B" uniqKey="Koprich J" first="James B" last="Koprich">James B. Koprich</name>
<name sortKey="Reyes, M Gabriela" sort="Reyes, M Gabriela" uniqKey="Reyes M" first="M Gabriela" last="Reyes">M Gabriela Reyes</name>
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<name sortKey="Lewis, Katie D" sort="Lewis, Katie D" uniqKey="Lewis K" first="Katie D" last="Lewis">Katie D. Lewis</name>
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<name sortKey="Piggott, Matthew J" sort="Piggott, Matthew J" uniqKey="Piggott M" first="Matthew J" last="Piggott">Matthew J. Piggott</name>
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   |texte=   UWA-121, a mixed dopamine and serotonin re-uptake inhibitor, enhances L-DOPA anti-parkinsonian action without worsening dyskinesia or psychosis-like behaviours in the MPTP-lesioned common marmoset.
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