TY - JOUR
T1 - Comparison of the effects of nimesulide and nimesulide-L-lysine on PGE2 production by COX-1 and COX-2 and on chondrocyte metabolism in-vitro
AU - de Leval, Xavier
AU - Henrotin, Yves
AU - Labasse, A
AU - Reginster, Jean-Yves
AU - Neven, Philippe
AU - Delarge, Jacques
AU - Somers, Fabian
AU - Masereel, Bernard
AU - Pirotte, Bernard
AU - Dogné, Jean-Michel
PY - 2000
Y1 - 2000
N2 - Nimesulide, a non-steroidal anti-inflammatory drug and one of a promising class of selective COX-2 inhibitors, has a very interesting therapeutic profile. Unfortunately, it is poorly soluble in water, which leads to important difficulties in the formulation of injectable solutions. This problem can also affect the bioavailability of nimesulide. To increase the aqueous solubility of the drug a nimesulide-L-lysine salt was synthesized in our laboratory; its aqueous solubility was greater than that of nimesulide (solubility in purified water 7.5 mg mL−1, and 0.01 mg mL-1, respectively).The aim of this study was to compare the anti-inflammatory profiles of nimesulide and nimesulide-L-lysine salt in a two-step in-vitro investigation. First, we evaluated the COX-2 selectivity of the drugs by a method using purified COX-1 and COX-2 enzymes. In a second step we evaluated the effects of the drugs on the production of prostaglandin E2 (PGE2) and proteoglycan by chondrocytes from man. The results obtained confirmed the COX-2 selectivity of the two compounds. Nimesulide-L-lysine had the same anti-inflammatory profile as nimesulide on chondrocyte cultures and better water solubility.Nimesulide-L-lysine should, therefore, be used to prepare injectable preparations and should ameliorate bioavailability after oral treatments.
AB - Nimesulide, a non-steroidal anti-inflammatory drug and one of a promising class of selective COX-2 inhibitors, has a very interesting therapeutic profile. Unfortunately, it is poorly soluble in water, which leads to important difficulties in the formulation of injectable solutions. This problem can also affect the bioavailability of nimesulide. To increase the aqueous solubility of the drug a nimesulide-L-lysine salt was synthesized in our laboratory; its aqueous solubility was greater than that of nimesulide (solubility in purified water 7.5 mg mL−1, and 0.01 mg mL-1, respectively).The aim of this study was to compare the anti-inflammatory profiles of nimesulide and nimesulide-L-lysine salt in a two-step in-vitro investigation. First, we evaluated the COX-2 selectivity of the drugs by a method using purified COX-1 and COX-2 enzymes. In a second step we evaluated the effects of the drugs on the production of prostaglandin E2 (PGE2) and proteoglycan by chondrocytes from man. The results obtained confirmed the COX-2 selectivity of the two compounds. Nimesulide-L-lysine had the same anti-inflammatory profile as nimesulide on chondrocyte cultures and better water solubility.Nimesulide-L-lysine should, therefore, be used to prepare injectable preparations and should ameliorate bioavailability after oral treatments.
U2 - 10.1211/146080800128735683
DO - 10.1211/146080800128735683
M3 - Article
SN - 1460-8081
VL - 6
SP - 83
EP - 87
JO - Pharmacy and pharmacology communications
JF - Pharmacy and pharmacology communications
IS - 2
ER -