Tetta Takahashi, Nahoko Tomonobu, Rie Kinoshita, Ken-Ichi Yamamoto, Hitoshi Murata, Ni Luh Gede Yoni Komalasari, Youyi Chen, Fan Jiang, Yuma Gohara, Toshiki Ochi, I Made Winarsa Ruma, I Wayan Sumardika, Jin Zhou, Tomoko Honjo, Yoshihiko Sakaguchi, Akira Yamauchi, Futoshi Kuribayashi, Eisaku Kondo, Yusuke Inoue, Junichiro Futami, Shinichi Toyooka, Yoshito Zamami, Masakiyo Sakaguchi
BACKGROUND: Our earlier research revealed that the secreted lysyl oxidase-like 4 (LOXL4) that is highly elevated in triple-negative breast cancer (TNBC) acts as a catalyst to lock annexin A2 on the cell membrane surface, which accelerates invasive outgrowth of the cancer through the binding of integrin-β1 on the cell surface. However, whether this machinery is subject to the LOXL4-mediated intrusive regulation remains uncertain. METHODS: Cell invasion was assessed using a transwell-based assay, protein-protein interactions by an immunoprecipitation-Western blotting technique and immunocytochemistry, and plasmin activity in the cell membrane by gelatin zymography...
2024: Frontiers in Oncology