DNAJB4 and neoplasm: Mechanistically, DNAJB4 knockdown impeded apoptosis by suppressing the Hippo signaling pathway, while this effect was reversed upon DNAJB4 overexpression, suggesting that DNAJB4 plays a crucial role in promoting TNBC apoptosis by activating the Hippo signaling pathway and could, therefore, emerge as a therapeutic target for this tumor [44].