Takahiro Arima, Kazuki Sugimoto, Takuya Taniwaki, Kazuya Maeda, Yuto Shibata, Makoto Tateyama, Tatsuki Karasugi, Takuya Tokunaga, Takanao Sueyoshi, Satoshi Hisanaga, Tetsuro Masuda, Yusuke Uehara, Masaki Yugami, Kozo Matsushita, Ryuji Yonemitsu, Junki Kawakami, Naoto Yoshimura, Shuntaro Tanimura, Hajime Kato, Nobuaki Ito, Kenichi Inoue, Kana Bando, Takayuki Nakamura, Takeshi Miyamoto
Aging presents fundamental health concerns worldwide; however, mechanisms underlying how aging is regulated are not fully understood. Here, we show that cartilage regulates aging by controlling phosphate metabolism via ectonucleotide pyrophosphatase/phosphodiesterase 1 (Enpp1). We newly established an Enpp1 reporter mouse, in which an EGFP-luciferase sequence was knocked-in at the Enpp1 gene start codon (Enpp1/EGFP-luciferase), enabling detection of Enpp1 expression in cartilage tissues of resultant mice. We then established a cartilage-specific Enpp1 conditional knockout mouse (Enpp1 cKO) by generating Enpp1 flox mice and crossing them with cartilage-specific type 2 collagen Cre mice...
January 2024: Journal of Biological Chemistry