BCL2 and salivary gland cancer: Esculetin inhibited the proliferation of human submandibular salivary gland cancer cells by reducing Bcl‐2 expression and increasing Bax expression, as well as cleaved caspase‐3, caspase‐9, and Poly (ADP‐ribose) polymerase, according to an in vivo and in vitro study conducted by Park and colleagues using the A253 cell line.23