Polyamines Polyamines are naturally occurring small molecules and are found in high concentrations particularly in eukaryotic cells. Polyamines are often essentially fully protonated under physiological condition and these polycations also bind to DNA .Polyamines are present in chromatin and are believed to be involved in many cellular events and also to protect DNA from damage by free radicals. It is widely believed that gene therapy will become an efficient medicine for the treatment of diseases such as cancer, cystic fibrosis and for vaccination .The essential requirements for gene...