| Bioactivity | U-73343, works as a protonophore, is an inactive analog of U-73122 and can be used as a negative control. U-73343 dose-dependently inhibits acid secretion irrespective of the stimulant. U-73122 is a phospholipase C (PLC) and 5-LO (5-lipoxygenase) inhibitor with an IC50 of 1-2.1 µM for PLC[1][2]. | |||||||||
| Invitro | U73343, which potently inhibits acid secretion, shows no inhibitory effect on either K+-pNPPase or H+,K+-ATPase activity. U73343 dose-dependently inhibits, histamine (Hist)-, carbachol (CCh)-, and dbcAMPstimulated aminopyrine accumulation in gastric glands[1]. | |||||||||
| Name | U-73343 | |||||||||
| CAS | 142878-12-4 | |||||||||
| Formula | C29H42N2O3 | |||||||||
| Molar Mass | 466.66 | |||||||||
| Appearance | Solid | |||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | |||||||||
| Storage |
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| Reference | [1]. Muto Y, et al. The putative phospholipase C inhibitor U73122 and its negative control, U73343, elicit unexpected effects on the rabbit parietal cell. J Pharmacol Exp Ther. 1997 Sep;282(3):1379-88. [2]. A Tatrai, et al. U-73122, a phospholipase C antagonist, inhibits effects of endothelin-1 and parathyroid hormone on signal transduction in UMR-106 osteoblastic cells. Biochim Biophys Acta. 1994 Dec 30;1224(3):575-82. |