Depending on the therapeutic gene or combination of genes in the composition of the leucoconcentrate, it can be used for the enhancement of pathogenic therapy for other somatic or infectious diseases and used as a complementary therapy, for example, in the bypass grafting of blood vessels co-treated with VEGF gene therapy, osteosynthesis of bones co-treated with bone morphogenic protein (BMP) gene therapy, antimicrobial interventions for purulent diseases combined with lactoferrin gene therapy (Figure 15). This evidence concerns the gene LTF and infectious disease.