Fuente: WIPO "tomato" The present invention relates to a process for the production of irisin, comprising the following steps: providing an expression vector comprising a nucleotide sequence coding for said irisin; inserting said expression vector into at least one first bacterium of the Agrobacterium genus, thus obtaining a first bacterium of the Agrobacterium genus comprising said expression vector; treating at least one plant material with said first bacterium comprising said expression vector, thus obtaining a treated plant material; cultivating said treated plant material, so that said treated plant material expresses said irisin; and extracting said irisin. The present invention further relates to irisin included in liposomes, its use as a medicament and its administration routes, a synthetic gene comprising a sequence coding for irisin and additional elements.