JCHAIN and glioblastoma: The expression of JCHAIN protein in several malignancies was subsequently examined using the UALCAN tool and the Human Protein Atlas (HPA), and it was discovered that JCHAIN protein was lowly expressed in BRCA, OV, COAD, LUAD, LUSC, HNSC, LIHC, and highly expressed in PAAD and GBM (Figure 2A–J).