Abstract：
:Kv1.3 is a voltage gated potassium channel that has been implicated in pathophysiology of multiple sclerosis (MS). In the present study we investigated temporal and cellular expression pattern of this channel in the lumbar part of spinal cords of animals with experimental autoimmune encephalomyelitis (EAE), animal model of MS. EAE was actively induced in female Dark Agouti rats. Expression of Kv1.3 was analyzed at different time points of disease progression, at the onset, peak and end of EAE. We here show that Kv1.3 increased by several folds at the peak of EAE at both gene and protein level. Double immunofluorescence analyses demonstrated localization of Kv1.3 on activated microglia, macrophages, and reactive astrocytes around inflammatory lesions. In vitro experiments showed that pharmacological block of Kv1.3 in activated astrocytes suppresses the expression of proinflammatory mediators, suggesting a role of this channel in inflammation. Our results support the hypothesis that Kv1.3 may be a therapeutic target of interest for MS and add astrocytes to the list of cells whose activation would be suppressed by inhibiting Kv1.3 in inflammatory conditions.
journal_name
Neurochem Resjournal_title
Neurochemical researchauthors
Bozic I,Tesovic K,Laketa D,Adzic M,Jakovljevic M,Bjelobaba I,Savic D,Nedeljkovic N,Pekovic S,Lavrnja Idoi
10.1007/s11064-018-2509-8subject
Has Abstractpub_date
2018-05-01 00:00:00pages
1020-1034issue
5eissn
0364-3190issn
1573-6903pii
10.1007/s11064-018-2509-8journal_volume
43pub_type
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