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BACKGROUND AND PURPOSE Calcium-activated chloride channels (CaCCs) play varied physiological roles and constitute potential therapeutic targets for conditions such as asthma and hypertension. TMEM16A encodes a CaCC. CaCC pharmacology is restricted to compounds with relatively low potency and poorly defined selectivity. Anthracene-9-carboxylic acid (A9C), an(More)
BACKGROUND AND PURPOSE Ca2+ -activated Cl- channels (CaCCs) are gated open by a rise in intracellular Ca2+ concentration ([Ca2+ ]i ), typically provoked by activation of Gq -protein coupled receptors (Gq PCR). Gq PCR activation initiates depletion of plasmalemmal phosphatidylinositol 4,5-bisphosphate (PIP2 ). Here, we determined whether PIP2 acts as a(More)
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