document: Let-7g not only inhibited DNA repair but also effectively suppressed cell migration by 40-50% in a wound-healing assay (Figure S11) and inhibited the invasion rate by approximately 60% in a trans-well assay (Figure S12). The results were also confirmed by observing cell progression after pre-treatment with TrQβ@b-3WJsiEGFR Let-7g, showing that the cell progression rate of pre-treated U87MG cells was significantly slower than the cell projection rate of the control group (without any treatment),