Moreover, subsequent western blot assay (Fig. 1D) on four pairs of gastric cancer and normal tissue samples as well as qRT-PCR study (Fig. 1E, F) on clinical gastric cancer samples in our clinical center also suggested that IGHG1 protein and mRNA level were significantly elevated in cancer tissues (p < 0.001). The gene discussed is IGHG1; the disease is gastric cancer.