Yuya Yoshida, Taiki Fukuda, Tomohito Tanihara, Naoki Nishikawa, Serina Iwasa, Satoka Adachi, Orion Zaitsu, Yuma Terada, Ryotaro Tsukamoto, Hideki Shimoshikiryo, Kohei Fukuoka, Fumiaki Tsurusaki, Kengo Hamamura, Kosuke Oyama, Akito Tsuruta, Satoru Koyanagi, Naoya Matsunaga, Shigehiro Ohdo
The chemotherapeutic agent tegafur, a prodrug that prolongs the half-life of fluorouracil (5-FU), exerts antitumor effects against various cancers. Since tegafur is metabolized to 5-FU by CYP2A6 in the liver, the expression of CYP2A6 determines the effect of tegafur. Here, we report that the expression rhythm of Cyp2a5, a homolog of human CYP2A6, in female mice causes dosing time-dependent differences in tegafur metabolism. In the livers of female mice, CYP2A5 expression showed a circadian rhythm, peaking during the dark period...
March 20, 2024: Biochemical and Biophysical Research Communications