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2017 ; 54
(4
): 2986-2996
Nephropedia Template TP
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English Wikipedia
Cortical Spreading Depression Causes Unique Dysregulation of Inflammatory
Pathways in a Transgenic Mouse Model of Migraine
#MMPMID27032388
Eising E
; Shyti R
; 't Hoen PAC
; Vijfhuizen LS
; Huisman SMH
; Broos LAM
; Mahfouz A
; Reinders MJT
; Ferrari MD
; Tolner EA
; de Vries B
; van den Maagdenberg AMJM
Mol Neurobiol
2017[May]; 54
(4
): 2986-2996
PMID27032388
show ga
Familial hemiplegic migraine type 1 (FHM1) is a rare monogenic subtype of
migraine with aura caused by mutations in CACNA1A that encodes the ?(1A) subunit
of voltage-gated Ca(V)2.1 calcium channels. Transgenic knock-in mice that carry
the human FHM1 R192Q missense mutation ('FHM1 R192Q mice') exhibit an increased
susceptibility to cortical spreading depression (CSD), the mechanism underlying
migraine aura. Here, we analysed gene expression profiles from isolated cortical
tissue of FHM1 R192Q mice 24 h after experimentally induced CSD in order to
identify molecular pathways affected by CSD. Gene expression profiles were
generated using deep serial analysis of gene expression sequencing. Our data
reveal a signature of inflammatory signalling upon CSD in the cortex of both
mutant and wild-type mice. However, only in the brains of FHM1 R192Q mice
specific genes are up-regulated in response to CSD that are implicated in
interferon-related inflammatory signalling. Our findings show that CSD modulates
inflammatory processes in both wild-type and mutant brains, but that an
additional unique inflammatory signature becomes expressed after CSD in a
relevant mouse model of migraine.