TNFAIP8 and gastric cancer: Immunohistochemical, western blotting and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analyses were used to evaluate the expression of TNFAIP8 in gastric cancer tissues and cell lines, compared with adjacent normal tissues and GES-1 cells, and its relationship with clinicopathological characteristics and its prognostic roles were evaluated in 86 patients on long-term follow-up.