Molecular studies of BKCa channels in intracranial arteries: presence and localization
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Molecular studies of BKCa channels in intracranial arteries : presence and localization. / Wulf, Helle; Hay-Schmidt, Anders; Poulsen, Asser Nyander; Klærke, Dan Arne; Olesen, Jes; Jansen-Olesen, Inger.
In: Cell and Tissue Research, Vol. 334, No. 3, 2008, p. 359-369.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Molecular studies of BKCa channels in intracranial arteries
T2 - presence and localization
AU - Wulf, Helle
AU - Hay-Schmidt, Anders
AU - Poulsen, Asser Nyander
AU - Klærke, Dan Arne
AU - Olesen, Jes
AU - Jansen-Olesen, Inger
PY - 2008
Y1 - 2008
N2 - Large conductance calcium-activated potassium channels (BK(ca)) are crucial for the regulation of cerebral vascular basal tone and might be involved in cerebral vasodilation relevant to migraine and stroke. We studied the differential gene expression of mRNA transcript levels and protein expression of the BK(Ca) channel in rat basilar, middle cerebral, and middle meningeal arteries by reverse transcription polymerase chain reaction (RT-PCR), quantitative real-time PCR, and Western blotting. Distribution patterns were investigated using in situ hybridization and immunofluorescence studies. RT-PCR and quantitative real-time PCR detected the expression of the BK(Ca) channel mRNA transcript in rat basilar, middle cerebral, and middle meningeal arteries, with the transcript being expressed more abundantly in rat basilar arteries than in middle cerebral and middle meningeal arteries. Western blotting detected the BK(Ca) channel protein in rat basilar and middle cerebral arteries. In situ hybridization and immunofluorescence studies confirmed that the BK(Ca) channel mRNA and protein expression was localized to smooth muscle cells in all three intracranial arteries. The data thus suggest the presence and localization of both mRNA and protein expression of the BK(Ca) channel in the smooth muscle cell layer in rat basilar, middle cerebral, and middle meningeal arteries.
AB - Large conductance calcium-activated potassium channels (BK(ca)) are crucial for the regulation of cerebral vascular basal tone and might be involved in cerebral vasodilation relevant to migraine and stroke. We studied the differential gene expression of mRNA transcript levels and protein expression of the BK(Ca) channel in rat basilar, middle cerebral, and middle meningeal arteries by reverse transcription polymerase chain reaction (RT-PCR), quantitative real-time PCR, and Western blotting. Distribution patterns were investigated using in situ hybridization and immunofluorescence studies. RT-PCR and quantitative real-time PCR detected the expression of the BK(Ca) channel mRNA transcript in rat basilar, middle cerebral, and middle meningeal arteries, with the transcript being expressed more abundantly in rat basilar arteries than in middle cerebral and middle meningeal arteries. Western blotting detected the BK(Ca) channel protein in rat basilar and middle cerebral arteries. In situ hybridization and immunofluorescence studies confirmed that the BK(Ca) channel mRNA and protein expression was localized to smooth muscle cells in all three intracranial arteries. The data thus suggest the presence and localization of both mRNA and protein expression of the BK(Ca) channel in the smooth muscle cell layer in rat basilar, middle cerebral, and middle meningeal arteries.
U2 - 10.1007/s00441-008-0701-x
DO - 10.1007/s00441-008-0701-x
M3 - Journal article
C2 - 18953570
VL - 334
SP - 359
EP - 369
JO - Cell and Tissue Research
JF - Cell and Tissue Research
SN - 0302-766X
IS - 3
ER -
ID: 9563358