5 Chemical preparations for medical and veterinary purposes for the treatment and prevention of cancerous diseases, autoimmune disorders, genetic defects or metabolic disorders; medical and pharmaceutical preparations comprising liposomes, lipoplexes, polyplexes, microparticles, nanoparticles, or lipid-based emulsions for the treatment and prevention of cancerous diseases, autoimmune disorders, genetic defects or metabolic disorders; medical and pharmaceutical preparations comprising, in particular, liposomes, lipoplexes, polyplexes, microparticles, nanoparticles, or lipid-based emulsions and comprising additional active ingredients, in particular proteins or nucleic acids for the treatment and prevention of cancerous diseases, autoimmune disorders, genetic defects or metabolic disorders; carriers and carrier systems, namely, drug delivery agents in the form of powders, tablets, liposomes, lipoplexes, polyplexes, microparticles, nanoparticles, or lipid-based emulsions and capsules that provide controlled release of active ingredients for pharmaceuticals for use in the treatment of cancer, autoimmune disorders, genetic defects, and metabolic disorders