Overall, we identified five GBM cultures undergoing chemoresistance in response to nanomolar humanin concentrations (here for brevity designated hGBM-1 to hGBM-5; Figure S7) and three GBM cultures requiring micromolar amounts of humanin for the induction of chemoresistance (hGBM-6 to hGBM-8; Figure S7). Here, MT-RNR2 is linked to glioblastoma.