| Chemical Properties | White to off-white solid |
| Uses | Picolinamide was used as template in preparation of molecular imprinting polymer. Picolinamide was used in a study to evaluate kinetics and mechanism of liberation of picolinamide from chromium(III)-picolinamide complexes in HClO4. |
| Uses | A nicotinic acid derivative for prevention and treatment of cancer by activating RUNX3 gene. |
| Definition | ChEBI: A pyridinecarboxamide that is the monocarboxylic acid amide derivative of picolinic acid. |
| Biological Activity | picolinamide is a poly (adp-ribose) synthetase (parp) inhibitor.parp inhibitors, a group of pharmacological inhibitors of the enzyme poly adp ribose polymerase (parp), are developed for multiple indications, especially for the treatment of cancer. |
| Biochem/physiol Actions | Picolinamide is potential inhibitor of poly (ADP-ribose) synthetase of nuclei from rat pancreatic islet cells. Picolinamide acts as bidentate ligand and forms complexes with lanthanide nitrates, thiocyanates and perchlorates. |
| in vitro | the pathway of oxidation of picolinamide by a gram-negative rod has been elucidated. results showed that under high ph conditions, whole cells could release 2,5-dihydroxypyridine into culture supernatants. moreover, sodium arsenite was able to cause whole cells to accumulate 6-hydroxypicolinate in the culture media. in addition, whole cells were found to oxidize picolinamide, without lag. it was also found that cell-free extracts could convert picolinamide into picolinate, and hydroxylate picolinate into 6-hydroxypicolinate [1]. |
| in vivo | picolinamide was used in a previous study to evaluate the possibility that the inhibition of na+/phosphate cotransport might be associated with the inhibition of nad hydrolyzing enzymes. results showed that the overnight treatment of rats with picolinamide, administered as a single injection (4 mmol/kg), could inhibit na+/phosphate cotransport by isolated renal brush border membrane vesicles. similar to nicotinamide, the inhibition caused by picolinamide occurred in thyroparathyroidectomized rats, was specific for na+/phosphate cotransport. unlike nicotinamide, there was only a small 1.5-fold increase in renal cortical nad content after picolinamide treatment [2]. |
| references | [1] c. g. orpin,m. knight, and w. c. evans. the bacterial oxidation of picolinamide, a photolytic product of diquatbiochem j. 1972 may; 127(5): 819–831.
[2] campbell pi, al-mahrouq ha,abraham mi,kempson sa. specific inhibition of rat renal na+/phosphate cotransport by picolinamide. j pharmacol exp ther.1989 oct;251(1):188-92. |
