Desensitization and recovery of muscarinic and histaminergic Ca2+ mobilization in 1321N1 astrocytoma cells
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چکیده
منابع مشابه
Muscarinic receptors mediate phospholipase C-dependent activation of protein kinase B via Ca2+, ErbB3, and phosphoinositide 3-kinase in 1321N1 astrocytoma cells.
In 1321N1 astrocytoma cells, heterotrimeric G-protein-coupled receptors that activate phosphoinositide-specific phospholipase Cbeta (PLCbeta) isoforms via G(q), induced a prolonged activation of protein kinase B (PKB) after a short delay. For example, the effect of carbachol acting on M3 muscarinic receptors is blocked by wortmannin, suggesting it is mediated via a phosphoinositide 3-kinase (PI...
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In 1321N1 astrocytoma cells, carbachol stimulation of M3 muscarinic cholinergic receptors, coupled to phospholipase C, evoked a persistent 10-20-fold activation of p70 S6 kinase (S6K1). This response was abolished by chelation of cytosolic Ca2+ and reproduced by the Ca2+ ionophore ionomycin, but was not prevented by down-regulation or inhibition of protein kinase C. Carbachol-stimulated activat...
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In 1321N1 astrocytoma cells, stimulation of the IGF-1 (insulin-like growth factor-1) receptor increased the association of PI3K [phosphoinositide (PI) 3-kinase] activity with IRS-1 (insulin re-ceptor substrate 1), and increased the cellular concentration of PtdIns(3,4,5)P3. Carbachol, acting on M3 muscarinic receptors, inhibited insulin-, but not PDGF (platelet-derived growth factor)-, stimulat...
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کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
15 صفحه اولRegulation of connexin 43 and microRNA expression via β2-adrenoceptor signaling in 1321N1 astrocytoma cells.
Connexin 43 (Cx43) is the main gap junction protein in astrocytes and exerts the same effects on growth inhibition in astrocytoma and glioma as microRNA-146a (miR-146a) in glioma. β2-adrenergic receptor (AR) signaling modulates Cx43 expression in myocytes via components downstream of protein kinase A (PKA) and exchange protein directly activated by cAMP (Epac). However, it remains to be elucida...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1988
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj2490135