TP4 (Nile tilapia piscidin) is an orally active, piscidin-like antimicrobial peptide that inhibits various gram-positive and gram-negative bacterial strains with a minimum inhibitory concentration (MIC) ranging from 0.03 to 10 μg/mL. It demonstrates hemolytic activity and promotes immune response, antioxidant activity, and intestinal health in the presence of bacterial infections. Additionally, TP4 has an anti-tumor effect and induces necrosis in cancer cells by triggering mitochondrial dysfunction [1] [2] [3].

FGFR1/VEGFR2-IN-2 (compound 6) is a dual inhibitor targeting both VEGFR2 and FGFR1 with IC50 values of 0.025 µM and 0.026 µM, respectively. This compound also exhibits inhibitory effects on EGFR and PDGFR-β, with IC50 values of 0.106 µM and 0.077 µM, respectively. FGFR1/VEGFR2-IN-2 demonstrates significant anticancer activity in the NCI-60 cell lines, showing a growth inhibition (GI) of 60.38%. In T-47D cell lines, it achieves an IC50 of 8.51 µM, exhibits anti-migratory properties, induces cell cycle arrest in the G1 phase, and promotes both apoptosis and necrosis. Additionally, while it has an IC50 greater than 100 µM in MCF-7 cell lines, it does so with an IC50 of 69.17 µM in MDA-MB-231 cell lines and shows no toxicity to normal cells.

Necrostatin 2 is a necrotic protein and receptor-interacting protein kinase 1 (RIPK1) inhibitor used to study inner ear disorders such as sudden deafness, dizziness and tinnitus.

RIP3 Activator 1 (compound C8) is an effective RIP3 activator that inhibits cell growth and induces necroptotic cell death (necroptosis) and autophagy through the RIP3/p62/Keap1 signaling pathway. Additionally, this compound enhances the expression of p-MLKL and promotes the accumulation of LC3-II and p62 proteins.

Cathepsin B is a cysteine protease located within the subcellular endosomes and lysosomal compartments that mediates apoptosis and can be used in cancer research.

Necrostatin-5 (Nec-5) is a selective RIP1 kinase inhibitor and cell necrosis inhibitor that prevents the death of Fadd-deficient Jurkat cells treated with TNF-α, with an EC50 of 240 nM.

Necroptosis-IN-3 (Cyclohexanecarboxamide, N-(2-thienylmethyl)-) (Compound 69) is a Necroptosis inhibitor that inhibits TNF-α induced necroptosis. Necroptosis-IN-3 (Compound STX1638) also inhibits 11β-HSD1.

RIP1 Kinase Inhibitor 8 (Compound 77), a potent and highly selective dihydropyrazole (DHP) RIP1 kinase inhibitor, exhibits an IC50 of 20 nM and effectively prevents necrotic cell death. It also demonstrates a favorable pharmacokinetic profile across multiple species [1].