Moreover, low SLC25A21‐AS1 expression in the ESCC tumour tissues was indicated by the data of the TCGA and GTEx datasets (Figure S6B); however, we did not detect significant differences between 179 paired tumours and adjacent normal tissues samples of the GSE53625 dataset or in 28 paired tissues samples of the cDNA microarray (Figure S6C,D). The gene discussed is SLC25A21; the disease is neoplasm.