Nigericin is an antibiotic derived from Streptomyces hygroscopicus that act as a K+/H+ ionophore, promoting K+/H+ exchange across mitochondrial membranes. Nigericin is a NLRP3 activator. Nigericin shows promising anti-cancer activities through decreasing intracellular pH (pHi), and inactivation of Wnt/beta-catenin signals. Nigericin induces pyroptosis through caspase 1/GSDMD in TNBC[1][2][3][4][5][6][7].