Bioactivity | RS-25344 hydrochloride is a selective cAMP-phosphodiesterase 4 (PDE 4; PDE IV) inhibitor with an IC50 of 0.28 nM in human lymphocytes. RS-25344 hydrochloride has only weak inhibitory effects on PDE I, II, III (IC50 of >100 μM, 160 μM, 330 μM, respectively). RS-25344 hydrochloride has anti-inflammatory, memory- and cognition enhancing, and antineoplastic effects[1][2]. |
Invitro | RS-25344 hydrochloride (0-10 μM) is a potent inhibitor of sperm PDE activity, with an effective concentration of 0.3 nM and reaching maximum inhibition in the range of 100 nM[2]. |
In Vivo | RS-25344 hydrochloride (5 mg/kg; i.p.; twice daily for 72 h) results in significant increases in stomach weights in wild type C57BL/6 mice[3]. RS-25344 hydrochloride (1 mg/kg; i.p.; 30 min prior to food bolus) increases gastric retention in mice[3]. |
Name | RS-25344 hydrochloride |
CAS | 152815-28-6 |
Formula | C19H14ClN5O4 |
Molar Mass | 411.80 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
Reference | [1]. T Kaneko, et al. Elevated intracellular cyclic AMP inhibits chemotaxis in human eosinophils. Cell Signal. 1995 Jul;7(5):527-34. [2]. J D Fisch, et al. Enhancement of motility and acrosome reaction in human spermatozoa: differential activation by type-specific phosphodiesterase inhibitors. Hum Reprod. 1998 May;13(5):1248-54. [3]. Will McDonough, et al. PAN-selective inhibition of cAMP-phosphodiesterase 4 (PDE4) induces gastroparesis in mice. FASEB J. 2020 Sep;34(9):12533-12548. |