Different neuroinflammatory gene expression profiles in highly active and benign multiple sclerosis

2021 ◽  
pp. 577650
Author(s):  
Maria Ivanova ◽  
Anastasiya Voronkova ◽  
Vladimir Sukhorukov ◽  
Maria Zakharova
2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Suyan Tian ◽  
Lei Zhang

Multiple sclerosis (MS) is a common neurological disability of the central nervous system. Immune-modulatory therapy with interferon-β (IFN-β) has been used as a first-line treatment to prevent relapses in MS patients. While the therapeutic mechanism of IFN-β has not been fully elucidated, the data of microarray experiments that collected longitudinal gene expression profiles to evaluate the long-term response of IFN-β treatment have been analyzed using statistical methods that were incapable of dealing with such data. In this study, the GeneRank method was applied to generate weighted gene expression values and the monotonically expressed genes (MEGs) for both IFN-β treatment responders and nonresponders were identified. The proposed procedure identified 13 MEGs for the responders and 2 MEGs for the nonresponders, most of which are biologically relevant to MS. Our work here provides some useful insight into the mechanism of IFN-β treatment for MS patients. A full understanding of the therapeutic mechanism will enable a more personalized treatment strategy possible.


2010 ◽  
Vol 16 (3) ◽  
pp. 303-316 ◽  
Author(s):  
G. Lovas ◽  
JA Nielsen ◽  
KR Johnson ◽  
LD Hudson

The main pathological features of multiple sclerosis, demyelination and axonal transection, are considered to cause reversible and irreversible neurological deficits, respectively. This study aimed to separately analyze the effects of these pathological hallmarks on neuronal gene expression in experimental paradigms. The pontocerebellar pathway was targeted with either lysolecithin-induced chemical demyelination or a complete pathway transection (axonal transection) in rats. Transcriptional changes in the pontocerebellar neurons were investigated with microarrays at days 4, 10 and 37 post-intervention, which was confirmed by immunohistochemistry on protein level. A common as well as unique set of injury-response genes was identified. The increased expression of activating transcription factor 3 (Atf3) and thyrotropin-releasing hormone (Trh) in both injury paradigms was validated by immunohistochemistry. The expression of Atf3 in a patient with Marburg’s variant of multiple sclerosis was also detected, also confirming the activation of the Atf3 pathway in a human disease sample. It was concluded that this experimental approach may be useful for the identification of pathways that could be targeted for remyelinative or neuroprotective drug development.


2011 ◽  
Vol 235 (1-2) ◽  
pp. 91-97 ◽  
Author(s):  
Joost Smolders ◽  
Mariëlle Thewissen ◽  
Ruud Theunissen ◽  
Evelyn Peelen ◽  
Stephanie Knippenberg ◽  
...  

2006 ◽  
Vol 7 (1) ◽  
Author(s):  
Silja Särkijärvi ◽  
Hanna Kuusisto ◽  
Raija Paalavuo ◽  
Mari Levula ◽  
Nina Airla ◽  
...  

2020 ◽  
Author(s):  
T.A. van Wageningen ◽  
E. Gerrits ◽  
A. Geleijnse ◽  
N. Brouwer ◽  
J.J.G. Geurts ◽  
...  

ABSTRACTDemyelination of the CNS is a prominent pathological hallmark of Multiple Sclerosis (MS) and affects both white (WM) and grey matter (GM). However, demyelinated WM and GM areas exhibit clear pathological differences, most notably the presence or absence of inflammation and activated glial cells in WM and GM, respectively. In order to gain more insight into the differential pathology of demyelinated WM and GM areas, we micro-dissected neighbouring WM and GM demyelinated areas as well as normal appearing matter from leukocortical lesions of human post-mortem material and used these samples for RNA-sequencing. Our data show that even neighbouring WM and GM demyelinated areas share only 10% overlap in gene expression, implying a distinct gene expression profile, which is extending to a specific glial cell related signature. We propose that, based on their distinct expression profile, pathological processes in neighbouring WM and GM are likely different which could have implications for the efficacy of current MS treatments.


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