Topo I/II-IN-2 (Compound 3g) is an inhibitor of both Topo I and Topo II. It exhibits inhibitory activity against NCI-H446 and NCI-H1048 cells with IC50 values of 1.30 µM and 1.42 µM, respectively. Topo I/II-IN-2 induces mitochondrial apoptosis, disrupts mitochondrial function, and stimulates activity generation. Additionally, it inhibits the PI3K/Akt/mTOR pathway, effectively preventing the proliferation, invasion, and migration of small cell lung cancer (SCLC) cells in vitro.
