Journal of Pharmacological Sciences
Online ISSN : 1347-8648
Print ISSN : 1347-8613
ISSN-L : 1347-8613
Short Communications
Indomethacin Decreases Arachidonic Acid Uptake in HCA-7 Human Colon Cancer Cells
Takashi OridoHiromichi FujinoYuta HasegawaKaori ToyomuraTatsuo KawashimaToshihiko Murayama
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2008 Volume 108 Issue 3 Pages 389-392


Nonsteroidal anti-inflammatory drugs (NSAIDs) reduce the incidence of colorectal cancer. However, evidence is accumulating that NSAIDs have anti-cancer effects in addition to inhibiting cyclooxygenase (COX)-mediated prostanoid biosynthesis. We now show that indomethacin, a popular NSAID, significantly reduced the [3H]-arachidonic acid uptake in HCA-7 human colon cancer cells. Interestingly, no decrease in the uptake of [3H]-arachidonic acid occurred when the cells were treated with aspirin, diclofenac, and sulindac even though the concentrations of these NSAIDs were high enough to inhibit COX-2 activity. These findings suggest that indomethacin has a novel anti-cancer effect that may be independent of COX-2 inhibition.

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© The Japanese Pharmacological Society 2008
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