1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions

Neuroinflammation is one of the common features in most neurological diseases including multiple sclerosis (MScl) and neurodegenerative diseases such as Alzheimer’s disease (AD). It is associated with local brain inflammation, microglial activation, and infiltration of peripheral immune cells into c...

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Main Authors: Ginevra Giacomello, Carolin Otto, Josef Priller, Klemens Ruprecht, Chotima Böttcher, Maria Kristina Parr
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Current Issues in Molecular Biology
Subjects:
Online Access:https://www.mdpi.com/1467-3045/45/1/51
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author Ginevra Giacomello
Carolin Otto
Josef Priller
Klemens Ruprecht
Chotima Böttcher
Maria Kristina Parr
author_facet Ginevra Giacomello
Carolin Otto
Josef Priller
Klemens Ruprecht
Chotima Böttcher
Maria Kristina Parr
author_sort Ginevra Giacomello
collection DOAJ
description Neuroinflammation is one of the common features in most neurological diseases including multiple sclerosis (MScl) and neurodegenerative diseases such as Alzheimer’s disease (AD). It is associated with local brain inflammation, microglial activation, and infiltration of peripheral immune cells into cerebrospinal fluid (CSF) and the central nervous system (CNS). It has been shown that the diversity of phenotypic changes in monocytes in CSF relates to neuroinflammation. It remains to be investigated whether these phenotypic changes are associated with functional or metabolic alteration, which may give a hint to their function or changes in cell states, e.g., cell activation. In this article, we investigate whether major metabolic pathways of blood monocytes alter after exposure to CSF of healthy individuals or patients with AD or MScl. Our findings show a significant alteration of the metabolism of monocytes treated with CSF from patients and healthy donors, including higher production of citric acid and glutamine, suggesting a more active glycolysis and tricarboxylic acid (TCA) cycle and reduced production of glycine and serine. These alterations suggest metabolic reprogramming of monocytes, possibly related to the change of compartment (from blood to CSF) and/or disease-related. Moreover, the levels of serine differ between AD and MScl, suggesting different phenotypic alterations between diseases.
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spelling doaj.art-b3a97dfc95bf43c7b8a2ab1dbd6596b72023-11-30T21:45:42ZengMDPI AGCurrent Issues in Molecular Biology1467-30371467-30452023-01-0145176578110.3390/cimb450100511,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory ConditionsGinevra Giacomello0Carolin Otto1Josef Priller2Klemens Ruprecht3Chotima Böttcher4Maria Kristina Parr5Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2 + 4, 14195 Berlin, GermanyDepartment of Neurology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, GermanyDepartment of Neuropsychiatry and Laboratory of Molecular Psychiatry, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, GermanyDepartment of Neurology, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, GermanyDepartment of Neuropsychiatry and Laboratory of Molecular Psychiatry, Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, GermanyInstitute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2 + 4, 14195 Berlin, GermanyNeuroinflammation is one of the common features in most neurological diseases including multiple sclerosis (MScl) and neurodegenerative diseases such as Alzheimer’s disease (AD). It is associated with local brain inflammation, microglial activation, and infiltration of peripheral immune cells into cerebrospinal fluid (CSF) and the central nervous system (CNS). It has been shown that the diversity of phenotypic changes in monocytes in CSF relates to neuroinflammation. It remains to be investigated whether these phenotypic changes are associated with functional or metabolic alteration, which may give a hint to their function or changes in cell states, e.g., cell activation. In this article, we investigate whether major metabolic pathways of blood monocytes alter after exposure to CSF of healthy individuals or patients with AD or MScl. Our findings show a significant alteration of the metabolism of monocytes treated with CSF from patients and healthy donors, including higher production of citric acid and glutamine, suggesting a more active glycolysis and tricarboxylic acid (TCA) cycle and reduced production of glycine and serine. These alterations suggest metabolic reprogramming of monocytes, possibly related to the change of compartment (from blood to CSF) and/or disease-related. Moreover, the levels of serine differ between AD and MScl, suggesting different phenotypic alterations between diseases.https://www.mdpi.com/1467-3045/45/1/51monocytesmetabolismcerebrospinal fluidglycolysistricarboxylic acid cyclemultiple sclerosis
spellingShingle Ginevra Giacomello
Carolin Otto
Josef Priller
Klemens Ruprecht
Chotima Böttcher
Maria Kristina Parr
1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions
Current Issues in Molecular Biology
monocytes
metabolism
cerebrospinal fluid
glycolysis
tricarboxylic acid cycle
multiple sclerosis
title 1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions
title_full 1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions
title_fullStr 1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions
title_full_unstemmed 1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions
title_short 1,2-<sup>13</sup>C<sub>2</sub>-Glucose Tracing Approach to Assess Metabolic Alterations of Human Monocytes under Neuroinflammatory Conditions
title_sort 1 2 sup 13 sup c sub 2 sub glucose tracing approach to assess metabolic alterations of human monocytes under neuroinflammatory conditions
topic monocytes
metabolism
cerebrospinal fluid
glycolysis
tricarboxylic acid cycle
multiple sclerosis
url https://www.mdpi.com/1467-3045/45/1/51
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