Piezo1 activation using Yoda1 inhibits macropinocytosis in A431 human epidermoid carcinoma cells

Masashi Kuriyama, Hisaaki Hirose, Toshihiro Masuda, Masachika Shudou, Jan Vincent Arafiles, Miki Imanishi, Masashi Maekawa, Yuji Hara, Shiroh Futaki

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Macropinocytosis is a type of endocytosis accompanied by actin rearrangement-driven membrane deformation, such as lamellipodia formation and membrane ruffling, followed by the formation of large vesicles, macropinosomes. Ras-transformed cancer cells efficiently acquire exogenous amino acids for their survival through macropinocytosis. Thus, inhibition of macropinocytosis is a promising strategy for cancer therapy. To date, few specific agents that inhibit macropinocytosis have been developed. Here, focusing on the mechanosensitive ion channel Piezo1, we found that Yoda1, a Piezo1 agonist, potently inhibits macropinocytosis induced by epidermal growth factor (EGF). The inhibition of ruffle formation by Yoda1 was dependent on the extracellular Ca2+ influx through Piezo1 and on the activation of the calcium-activated potassium channel KCa3.1. This suggests that Ca2+ ions can regulate EGF-stimulated macropinocytosis. We propose the potential for macropinocytosis inhibition through the regulation of a mechanosensitive channel activity using chemical tools.

Original languageEnglish
Article number6322
JournalScientific reports
Issue number1
Publication statusPublished - 2022 Dec

ASJC Scopus subject areas

  • General


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