JMJD6 and breast neoplasm: For instance, ER‐positive tumors exhibited significantly lower JMJD6 expression than ER‐negative tumors, which explained the fact that JMJD6 was consistently related to ER‐negative diseases.193 However, in this study, no significant correlation between the JMJD6 level and the prognosis was identified.193,194 Furthermore, Claudin‐low breast tumors displayed the highest JMJD6 expression, followed by basal-like, HER2‐enriched and luminal B subtypes, with the lowest expression detected in luminal A subtype.193