Spermine tetrahydrochloride is widely used in biochemical research, particularly in the study of nucleic acids. It helps stabilize DNA and RNA structures, making it valuable in experiments involving DNA condensation and gene delivery systems. The compound is also employed in cell culture studies to promote cell growth and viability. Additionally, it plays a role in investigating polyamine metabolism and its impact on cellular processes, such as apoptosis and proliferation. Its ability to interact with cellular components makes it a useful tool in understanding molecular mechanisms and developing therapeutic strategies.