Effects of etodolac on human chondrocytes cultivated in three dimensional culture.
Human chondrocytes in three-dimensional culture were incubated for up to 20 days in the presence of etodolac, a nonsteroidal anti-inflammatory drug which penetrates readily into the synovial fluid. Even at an etodolac concentration of 80 micrograms/ml, DNA synthesis, proteoglycan synthesis, and type-II collagen synthesis were unchanged. Collagenase production was also unaffected by etodolac (60 micrograms/ml). In contrast, prostaglandin E2 production was reduced by 84% in the presence of 60 micrograms/ml of etodolac. The 80 micrograms/ml concentration is 5 times that found in the serum of subjects treated with 200 mg of etodolac twice a day for 6 days, and 33 times the concentration in synovial fluid of arthritic patients treated with etodolac 200 mg twice a day for 7 days. These in vitro results indicate that anti-inflammatory levels of etodolac may not damage articular cartilage in vivo.
Henrotin
Y
Y
University of Liège, Belgium.
Bassleer
C
C
Reginster
J Y
JY
Franchimont
P
P
D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology*; D002356:Cartilage / Q000166:cytology* / Q000187:drug effects; D002478:Cells, Cultured; D003094:Collagen / Q000096:biosynthesis; D004247:DNA / Q000096:biosynthesis; D015232:Dinoprostone / Q000096:biosynthesis; D017308:Etodolac; D006801:Humans; D007210:Indoleacetic Acids / Q000494:pharmacology*; D003012:Microbial Collagenase / Q000096:biosynthesis; D011509:Proteoglycans / Q000096:biosynthesis
D000894:Anti-Inflammatory Agents, Non-Steroidal; D007210:Indoleacetic Acids; D011509:Proteoglycans; D017308:Etodolac; D003094:Collagen; D004247:DNA; D003012:Microbial Collagenase; D015232:Dinoprostone