Abstract
Interferon (IFN)-β is among the first-line therapies for multiple sclerosis (MS), however the clinical response varies among individuals, and early identification of responders and non-responders would be of critical importance. Here we show that before treatment circulating lymphocytes of MS patients who will respond to IFN-β have higher mRNA levels for the D1-like dopaminergic receptor (DR) D5 in comparison to cells from those who will not respond. Lymphocyte DR D5 is reduced in MS and IFN-β restores their expression and responsiveness. DR D5 mRNA levels in circulating lymphocytes might represent an early marker of response to IFN-β in MS patients.
Keywords:
Dopaminergic receptors; Interferon beta; Lymphocytes; Multiple sclerosis; Tyrosine hydroxylase; β(2)-Adrenoceptors.
Copyright © 2014 Elsevier B.V. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Antibodies / pharmacology
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Female
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Humans
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Immunologic Factors / pharmacology*
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Immunologic Factors / therapeutic use
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Interferon-beta / immunology
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Interferon-beta / pharmacology*
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Interferon-beta / therapeutic use
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Lymphocytes / drug effects*
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Lymphocytes / metabolism*
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Male
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Middle Aged
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Multiple Sclerosis / drug therapy
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Multiple Sclerosis / pathology*
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RNA, Messenger / metabolism*
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ROC Curve
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Receptors, Adrenergic, beta-2 / genetics
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Receptors, Adrenergic, beta-2 / metabolism
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Receptors, Dopamine D2 / genetics
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Receptors, Dopamine D2 / metabolism
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Receptors, Dopamine D5 / genetics*
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Receptors, Dopamine D5 / metabolism
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Tyrosine 3-Monooxygenase / genetics
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Tyrosine 3-Monooxygenase / metabolism
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Young Adult
Substances
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Antibodies
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Immunologic Factors
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RNA, Messenger
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Receptors, Adrenergic, beta-2
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Receptors, Dopamine D2
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Receptors, Dopamine D5
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Interferon-beta
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Tyrosine 3-Monooxygenase