GRIPAP1 and breast cancer: Upregulation of tRNAGluUUC and tRNAArgCCG promotes breast cancer metastasis, with tRNAGluUUC promoting metastatic progression by directly enhancing exosome component exosome component 2 (EXOSC2) and glutamate receptor interacting protein 1 (GRIP1) associated protein 1 (GRIPAP1) protein expression [30].