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CAS No. 522-51-0
Dequalinium Chloride is a PKC inhibitor with IC50 of 7-18 μM, and also a selective blocker of apamin-sensitive K+ channels with IC50 of 1.1 μM.
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|Description||Dequalinium Chloride is a PKC inhibitor with IC50 of 7-18 μM, and also a selective blocker of apamin-sensitive K+ channels with IC50 of 1.1 μM.|
Dequalinium chloride (DECA) is a cationic, lipophilic compound with structure similar to the dye rhodamine 123. DECA is selectively accumulated and retained within the mitochondria of carcinoma cells where it acts as a mitochondrial poison by blocking mitochondrial enzymes which can then disrupt cellular energy production, eventually resulting in cell death. Dequalinium Chloride is a blocker of ganglionic transmission (EC50 = 2 μM).  Dequalinium is a potent inhibitor of apamin-sensitive K+ channels in hepatocytes and of nicotinic responses in skeletal muscle. Dequalinium blocks angiotensin II-evoked K+ loss with an IC50 of 1.5 μM and also inhibited125I - monoiodoapamin binding with Ki of 1.1 μM.  Dequalinium produces a rapid and reversible inhibition of the slow apamin-sensitive component of the afterhyperpolarization (AHP) which follows a single action potential in cultured rat sympathetic neurones.  Dequalinium Chloride (DECA) is a dicationic lipophilic PKC inhibitor. When exposed to UV light, DECA covalently binds to and irreversibly inhibits PKCα and PKCβ. 
|In vivo||In mice bearing bladder MB49 tumors, Dequalinium chloride (2 mg/kg/d, i.p.) displays anticarcinoma activity with T/C of 210%. |
-  Manetta A, et al. Gynecol Oncol, 1993, 50(1), 38-44.
-  Castle NA, et al. Eur J Pharmacol, 1993, 236(2), 201-207.
-  Dunn PM, et al. Eur J Pharmacol, 1994, 252(2), 189-194.
|In vitro||DMSO||0.025 mg/mL (0.04 mM)|
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