“…It was reported that EV inhibition reduces cell migration in chick cranial neural crest development, but the role of Tspans in development remains largely unclear. Kuriyama and Tanaka (2023) analyzed expression patterns of 15 members of the Tspan family in X. laevis embryos, and classified them according to their expression patterns: "notochord," "brain," "eye," "cranial neural crest," "trunk neural crest," and "placode," implying that a combination of tspan genes may exert a specific role of EVs. They further performed cytological analysis of EVs generated with exogenously expressed Tspan proteins in the Xenopus embryo.…”