Document Information


PMID 14556941  (  )
Title Riluzole suppresses experimental autoimmune encephalomyelitis: implications for the treatment of multiple sclerosis.
Abstract Recent studies suggest that glutamate neurotoxicity is involved in the pathogenesis of multiple sclerosis (MS), and that treatment with glutamate receptor (AMPA/kainate) antagonists inhibits experimental autoimmune encephalomyelitis (EAE), the conventional model of MS. Therefore, we examined whether riluzole, an inhibitor of glutamate transmission, affects the pathogenesis and clinical features of MS-like disease in myelin oligodendrocyte glycoprotein (MOG)-induced EAE in mice. Here we report that riluzole (10 mg/kgx2/day, i.p.), administered before and even after the appearance of clinical symptoms, dramatically reduced the clinical severity of MOG-induced EAE, while all the MOG-immunized control mice developed significant clinical manifestations. Moreover, the riluzole-treated mice demonstrated only mild focal inflammation, and less demyelination, compared to MOG-treated mice, using histological methods. Furthermore, riluzole markedly reduced axonal disruption, as assessed by Bielshowesky's silver staining and by antibodies against non-phosphorylated neurofilaments (SMI-32). No difference was detected in the immune system potency, as T-cell proliferative responses to MOG were similar in both groups. In conclusion, our study demonstrates, for the first time, that riluzole can reduce inflammation, demyelination and axonal damage in the CNS and attenuate the clinical severity of MOG-induced EAE. These results suggest that riluzole, a drug used in amyotrophic lateral sclerosis (ALS), might be beneficial for the treatment of MS. Department of Neurology, Rabin Medical Center-Beilinson Campus, The Sackler School of Medicine, Tel Aviv University, Petah Tikva 49100, Israel.

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Targets by SciMiner Summary

HUGO ID Symbol Target Name #Occur ActualStr
7197MOGmyelin oligodendrocyte glycoprotein35MOG-immunized | MOG-induced | MOG-treated | myelin oligodendrocyte glycoprotein |
4571GRIA1glutamate receptor, ionotropic, AMPA 13glutamate receptor |
7737NEFHneurofilament, heavy polypeptide 200kDa2NF-H |
4341GLULglutamate-ammonia ligase (glutamine synthetase)1glutamine synthetase |
6783MAGmyelin associated glycoprotein1myelin associated glycoprotein |
6925MBPmyelin basic protein1myelin basic protein |
4573GRIA3glutamate receptor, ionotrophic, AMPA 31GluR3 |

 


Targets by SciMiner Full list

HUGO ID Symbol Name ActualStr Score FlankingText
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9clinical features of MS-like disease in myelin oligodendrocyte glycoprotein (MOG)-induced MOG -induced EAE in mice
7197MOGmyelin oligodendrocyte glycoproteinMOG-induced1.9appearance of clinical symptoms dramatically reduced the clinical severity of MOG-induced EAE while all the MOG-immunized control mice developed significant clinical
7197MOGmyelin oligodendrocyte glycoproteinMOG-immunized1.9reduced the clinical severity of MOG-induced EAE while all the MOG-immunized control mice developed significant clinical manifestations
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9demonstrated only mild focal inflammation and less demyelination compared to MOG-treated mice using histological methods
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9in the immune system potency as T-cell proliferative responses to MOG were similar in both groups
7197MOGmyelin oligodendrocyte glycoproteinMOG-induced1.9damage in the CNS and attenuate the clinical severity of MOG-induced EAE
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9insult to neurons and axons in myelin oligodendrocyte glycoprotein (MOG)-induced MOG -induced EAE in C3H.SW mice a chronic model which appears
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9with the peptide encompassing amino acids 35_amp_#x2013 55 of rat MOG
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9with a 200 _amp_#x3bc l emulsion containing 75 _amp_#x3bc g MOG peptide (300 300 _amp_#x3bc g in the case of C57/bl)
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9Spinal cords from riluzole-treated and MOG mice were dissected 28 days after immunization with pMOG 35_amp_#x2013
7197MOGmyelin oligodendrocyte glycoproteinMOG-1.9severity of EAE following pMOG 35_amp_#x2013 55 induction between the MOG- and riluzole-treated mice groups was evaluated using Student_amp_#x2019 s t
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9when it was administered together with the first injection of MOG was shown to be beneficial in reducing clinical symptoms (
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9twice a day was given 14 days after the first MOG injection at the appearance of symptoms
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9riluzole-treated mice ( n =10 as measured 30 days after MOG injection was much lower than for the MOG-treated mice (1.18_amp_#xb1;0.47
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9days after MOG injection was much lower than for the MOG-treated mice (1.18_amp_#xb1;0.47 1.18_amp_#xb1 0.47 vs 2.31_amp_#xb1 0.23 P _amp_#x3c 0.03
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9Twenty-seven days after MOG injection there were marked differences between the control (CC) CC
7197MOGmyelin oligodendrocyte glycoproteinMOG-induced1.9of the 10 riluzole-treated (RR) RR mice remained resistant to MOG-induced EAE and remained disease free ( P =0.001 using _amp_#x3c7
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9Representative H_amp_#x26 E staining of spinal cords from five immunized MOG mice 28 days after immunization revealed marked multifocal lymphohistiocytic inflammation
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9in the number of lymphocytes in the spinal cord of MOG-treated mice compared to naive mice as indicated by arbitrary units
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9was dramatically reduced in riluzole-treated mice as compared to the MOG-treated group (0.036_amp_#xb1;0.007 0.036_amp_#xb1 0.007 vs 0.072_amp_#xb1 0.01 P _amp_#x3c 0.01
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9Inflammation in the MOG-treated mice was associated with myelin loss as indicated by LFB
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9Axonal staining of spinal cord sections from MOG-treated mice showed severe axonal damage using Bielshowesky_amp_#x2019 s method (
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9we found marked axonal loss in the spinal cords of MOG-treated mice compared to naive mice (0.44_amp_#xb1;0.03 0.44_amp_#xb1 0.03 vs 0.65_amp_#xb1
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9the riluzole-treated mice axonal integrity was preserved compared to the MOG-treated group (0.54_amp_#xb1;0.02 0.54_amp_#xb1 0.02 vs 0.44_amp_#xb1 0.03 P _amp_#x3c 0.02
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9Based on such testing the spinal cords of MOG-treated mice showed an increase of abnormal dephosphorylated NF-H ( Fig
7737NEFHneurofilament, heavy polypeptide 200kDaNF-H0.3cords of MOG-treated mice showed an increase of abnormal dephosphorylated NF-H ( Fig 2G while minimal abnormal dephosphorylation was observed in
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9Pro Plus analysis we found massive axonal damage in the MOG-treated mice compared to naive mice (0.03_amp_#xb1;0.003 0.03_amp_#xb1 0.003 vs 0.0005_amp_#xb1
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9in the area stained by SMI-32 as compared to the MOG-treated group (0.0006_amp_#xb1;0.0001 0.0006_amp_#xb1 0.0001 vs 0.03_amp_#xb1 0.003 P _amp_#x3c 0.0001
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9We compared the T-cell response in the riluzole- and MOG-treated mice groups to rule out the possibility that the observed
7197MOGmyelin oligodendrocyte glycoproteinMOG-treated1.9Riluzole-treated and MOG-treated mice (three three in each group were immunized with pMOG
7197MOGmyelin oligodendrocyte glycoproteinMOG1.9Fig 4 the in vitro primary proliferative response of both MOG and riluzole-treated mice against pMOG 35_amp_#x2013 55 was similar
7197MOGmyelin oligodendrocyte glycoproteinMOG-induced1.9study shows that riluzole-treated C3H.SW mice are highly resistant to MOG-induced chronic EAE
7737NEFHneurofilament, heavy polypeptide 200kDaNF-H0.3demonstrated axonal disruption indicating a large increase of abnormally dephosphorylated NF-H in MOG-immunized spinal cords in the riluzole-treated mice there was
7197MOGmyelin oligodendrocyte glycoproteinMOG-immunized1.9disruption indicating a large increase of abnormally dephosphorylated NF-H in MOG-immunized spinal cords in the riluzole-treated mice there was minimal abnormal
7197MOGmyelin oligodendrocyte glycoproteinMOG-immunized1.9for pMOG 35_amp_#x2013 55 was similar in the riluzole-treated and MOG-immunized mice suggesting that the beneficial effect of riluzole is probably
4573GRIA3glutamate receptor, ionotrophic, AMPA 3GluR31.6found high expression of the glutamate ion channel receptor (GluR3) GluR3 on normal human T-cells human T leukemia cells and mouse
7197MOGmyelin oligodendrocyte glycoproteinmyelin oligodendrocyte glycoprotein1.0 encephalomyelitis eae the conventional model of ms. therefore we examined whether riluzole an inhibitor of glutamate transmission affects the pathogenesis and clinical features of ms like disease in myelin oligodendrocyte glycoprotein mog induced eae in mice.
4571GRIA1glutamate receptor, ionotropic, AMPA 1glutamate receptor1.0recent studies suggest that glutamate neurotoxicity is involved in the pathogenesis of multiple sclerosis ms and that treatment with glutamate receptor ampa/kainate antagonists inhibits experimental autoimmune encephalomyelitis eae the conventional model of ms. therefore we examined whether riluzole an inhibitor of glutamate transmission affects the
7197MOGmyelin oligodendrocyte glycoproteinmyelin oligodendrocyte glycoprotein1.0we therefore investigated the clinical effects of riluzole in reducing the insult to neurons and axons in myelin oligodendrocyte glycoprotein mog induced eae in c3h.sw mice a chronic model which appears to resemble the clinical course of progressive ms better than the other disorders induced by auto antigens [ 27 ].
4571GRIA1glutamate receptor, ionotropic, AMPA 1glutamate receptor1.0glutamate receptor mediated toxicity has been observed in an oligodendroglial cell line [ 28 ] and in cultures of differentiated oligodendrocytes [ 26 and 42 ] and in an animal model for ms [ 44 ].
4341GLULglutamate-ammonia ligase (glutamine synthetase)glutamine synthetase1.0hardin et al. [ 21 ] showed that expression of glutamine synthetase and glutamate dehydrogenase the enzymes that are responsible for glutamate degradation was dramatically reduced in astrocytes during the course of eae affecting the reuptake of glutamate.
4571GRIA1glutamate receptor, ionotropic, AMPA 1glutamate receptor1.0however based on several previous studies showing that the csf glutamate levels are increased in ms patients [ 2 ] and that glutamate receptor antagonists ameliorate neurological symptoms in several forms of eae [ 38 and 43 ] it is tempting to suggest that it works by the suppression of glutamatergic neurotransmission in the cns achieved by
6925MBPmyelin basic proteinmyelin basic protein1.0a recent study found high expression of the glutamate ion channel receptor glur3 on normal human t cells human t leukemia cells and mouse anti myelin basic protein t cells [ 18 ].
6783MAGmyelin associated glycoproteinmyelin associated glycoprotein1.0myelin associated glycoprotein|neuroprotective agents|oligodendrocyte myelin glycoprotein|riluzole|