Citrinin (NSC 186) is a mycotoxin that causes food contamination and has different toxic effects. Citrinin is an effective oral anticancer agent. Citrinin has various regulatory effects on mouse immune system, including regulating the number of immune cells, inducing apoptosis and autophagy of immune cells, altering toll-like receptor expression and cytokine production. Citrinin can induce oxidative stress and lead to early apoptosis of oocytes. Low doses of Citrinin have neuroprotective effects against glutamate-induced excitotoxicity in rat cortical neurons. In addition, Citrinin also has antibacterial activity.

Tuna AI, an angiotensin-converting enzyme (ACE) inhibitor, exhibits IC50 values of 1 μM and 2 μM for ACEs from bovine and rabbit lungs, respectively.

COH34 is a selective inhibitor of PARG with an IC50 of 0.37 nM and a Kd of 0.547 μM. COH34 prolongs PARylation at DNA lesions and traps DNA repair factors.