The up-regulation of m6A modification level of PTEN mRNA promotes the degradation of PTEN mRNA and decreases its expression, and finally promotes the proliferation, migration, and invasion of gastric cancer cells (82); In gastric cancer, the autophagy degradation of lncRNA ARHGAP5-AS1 is impaired, leading to its upregulation in chemotherapy resistant cancer cells. Here, PTEN is linked to gastric cancer.