Ono 1301 is a prostaglandinI2 mimetic coumpound with inhibitory activity against thromboxane A2 synthase. Ono 1301 suppresses pancreatic fibrosis in the DBTC-induced CP model by inhibiting monocyte activity not only with induction of HGF but also by Ono
15-keto Treprostinil is an impurity found in treprostinil , which is a stable analog of prostaglandinI2 with a longer plasma half-life. Formulations containing treprostinil are used for the treatment of primary pulmonary hypertension.
6α-Prostaglandin I1 (6α-PGI1) is a stable ProstaglandinI2 (PGI2) analog resistant to hydrolysis in aqueous solutions. 6α-PGI1 promotes cyclic AMP accumulation in human thyroid slices and cells in a concentration dependent manner. However, it is about 10-fold less potent than the β-isomer and 100-fold less potent than PGI2 in eliciting the response. 6α-PGI1 exhibits an IC50 of 350 ng ml for inhibition of ADP-induced platelet aggregation, which is nearly 900-fold higher than that observed for PGI2 (0.4 ng ml).
CP21 is an iron chelator that binds to iron in a 3:1 (ligand:iron) ratio. It is active against P. falciparum when used at concentrations of 10 and 100 µM. CP21 inhibits production of prostaglandinI2 induced by epinephrine, arachidonic acid, or A23187 in isolated rat aortic rings with IC50 values of 1.3, 1.3, and 1.4 mM, respectively. It inhibits glutamate-induced oxytosis, as well as decreases iodoacetic acid-induced cytotoxicity in an in vitro model of ischemia, in HT22 mouse hippocampal cells (EC50s = 13 and 9.5 µM, respectively). CP21 (200 mg kg) increases the excretion of iron, but not copper, zinc, calcium, or magnesium, in rabbits.