TY - JOUR
T1 - Expression of BKCa channels and the modulatory ß-subunits in the rat and porcine trigeminal ganglion
AU - Wulf-Johansson, Helle
AU - Hay-Schmidt, Anders
AU - Poulsen, Asser Nyander
AU - Klærke, Dan Arne
AU - Olesen, Jes
AU - Jansen-Olesen, Inger
PY - 2009
Y1 - 2009
N2 - Large conductance calcium-activated potassium (BK(Ca)) channels contribute to electrical impulses, proper signal transmission of information and regulation of neurotransmitter release. Migraine has been proposed to be a trigeminovascular disease involving the sensory trigeminal pathways and the cerebral arteries. We hypothesize that BK(Ca) channel alpha- and beta-subunits are present in the rat and porcine trigeminal ganglion (TG) thus enabling a role in migraine. BK(Ca) channel mRNA was detected using reverse transcription polymerase chain reaction (RT-PCR) and in situ hybridization. BK(Ca) channel protein was visualized by western blotting and histochemistry. The presence of the modulatory beta1-beta 4 subunit mRNAs was investigated using RT-PCR. beta1-, beta2- and beta 4-subunit mRNAs were expressed in rat TG whereas beta2- and beta 4-subunits were detected in porcine TG. Western blotting revealed beta2- and beta 4-subunit proteins in rat and porcine TG. The present study showed BK(Ca) channel expression in rat and porcine TG. The main modulatory beta-subunits detected in TG of both species were beta2- and beta 4-subunits.
AB - Large conductance calcium-activated potassium (BK(Ca)) channels contribute to electrical impulses, proper signal transmission of information and regulation of neurotransmitter release. Migraine has been proposed to be a trigeminovascular disease involving the sensory trigeminal pathways and the cerebral arteries. We hypothesize that BK(Ca) channel alpha- and beta-subunits are present in the rat and porcine trigeminal ganglion (TG) thus enabling a role in migraine. BK(Ca) channel mRNA was detected using reverse transcription polymerase chain reaction (RT-PCR) and in situ hybridization. BK(Ca) channel protein was visualized by western blotting and histochemistry. The presence of the modulatory beta1-beta 4 subunit mRNAs was investigated using RT-PCR. beta1-, beta2- and beta 4-subunit mRNAs were expressed in rat TG whereas beta2- and beta 4-subunits were detected in porcine TG. Western blotting revealed beta2- and beta 4-subunit proteins in rat and porcine TG. The present study showed BK(Ca) channel expression in rat and porcine TG. The main modulatory beta-subunits detected in TG of both species were beta2- and beta 4-subunits.
U2 - 10.1016/j.brainres.2009.07.047
DO - 10.1016/j.brainres.2009.07.047
M3 - Journal article
C2 - 19631627
SN - 0006-8993
VL - 1292
SP - 1
EP - 13
JO - Brain Research
JF - Brain Research
ER -