AJAP1 and glioblastoma: Adherens junctions‐associated protein‐1 (AJAP1) is located on 1p36, a chromosome in which nonrandom deletion is often detected in various human malignancies.13AJAP1 has been widely acknowledged as a biomarker for glioblastoma (GBM), for example, by Yang et al14 Zeng et al13 argued for its positive correlation with poorer GBM survival.