AKAP 18 alpha and gamma have opposing effects on insulin release in INS-1E cells
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AKAP 18 alpha and gamma have opposing effects on insulin release in INS-1E cells. / Josefsen, Knud; Lee, Ying C; Thams, Peter; Efendic, Suad; Nielsen, Jens H.
I: FEBS Letters, Bind 584, Nr. 1, 01.2010, s. 81-5.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - AKAP 18 alpha and gamma have opposing effects on insulin release in INS-1E cells
AU - Josefsen, Knud
AU - Lee, Ying C
AU - Thams, Peter
AU - Efendic, Suad
AU - Nielsen, Jens H
N1 - Keywords: Animals; Carrier Proteins; Cell Line, Tumor; Glucose; Growth Hormone; Insulin; Insulin-Secreting Cells; Rats; Transcription, Genetic
PY - 2010/1
Y1 - 2010/1
N2 - A-kinase anchoring proteins (AKAPs) are known to compartmentalise protein kinase(s) to discrete cellular locations. Here we show that silencing of AKAP 18 alpha or gamma expression results in decreased or increased glucose-stimulated insulin secretion in INS-1E cells. Glucose stimulates AKAP 18 alpha and inhibits AKAP 18 gamma mRNA expressions while palmitate markedly reduces AKAP 18 alpha expression. Human growth hormone (GH) stimulates AKAP 18 alpha expression and attenuates palmitate-induced suppression of AKAP 18 alpha mRNA level. The roles of AKAP 18 alpha and gamma in mediating insulin release are consistent with their respective regulations by glucose.
AB - A-kinase anchoring proteins (AKAPs) are known to compartmentalise protein kinase(s) to discrete cellular locations. Here we show that silencing of AKAP 18 alpha or gamma expression results in decreased or increased glucose-stimulated insulin secretion in INS-1E cells. Glucose stimulates AKAP 18 alpha and inhibits AKAP 18 gamma mRNA expressions while palmitate markedly reduces AKAP 18 alpha expression. Human growth hormone (GH) stimulates AKAP 18 alpha expression and attenuates palmitate-induced suppression of AKAP 18 alpha mRNA level. The roles of AKAP 18 alpha and gamma in mediating insulin release are consistent with their respective regulations by glucose.
U2 - 10.1016/j.febslet.2009.10.086
DO - 10.1016/j.febslet.2009.10.086
M3 - Journal article
C2 - 19896945
VL - 584
SP - 81
EP - 85
JO - F E B S Letters
JF - F E B S Letters
SN - 0014-5793
IS - 1
ER -
ID: 22361195