In the miR-383/HDAC9 pathway, the attenuated expression of miR-383 led to the upregulation of histone deacetylase 9 (HDAC9) in GC tissues and cells, which was related to metastasis, shorter survival times, and unfavorable prognosis in GC patients (Xu et al., 2019). The gene discussed is HDAC9; the disease is gastric cancer.