Hydrogen cyanide has emerged as an endogenous signalling molecule in plants (Diaz-Rueda et al., J Exp Bot, 2023) and mammals (Zuhra et al., Nature Metabol, 2025). These discoveries elevate hydrogen cyanide (HCN) to the position of the fourth mammalian gasotransmitter, with NO, CO, and H₂S being the first three such molecules.

At the meeting, we will organize a special session on the regulatory roles of cyanide, with the participation of an international group of experts.