Cancer Cells Hijack Anti-Aging Compound

A recent study from the Tokyo University of Science has shed light on how polyamines, a group of essential molecules found in all living cells, may play a critical role in tumor proliferation. These compounds, including spermidine, are known for their anti-aging potential and are found in many supplements. However, this new research indicates that cancer cells can utilize polyamines to speed up their growth. The study focused on how cancer cells exhibit aerobic glycolysis, consuming sugar without oxygen. Researchers investigated the interaction between polyamines and proteins eIF5A1 and eIF5A2. They discovered that cancer cells promote the synthesis of eIF5A2, a protein linked to cancer growth, by removing a natural brake, miR-6514-5p. This manipulation helps cancer cells utilize aerobic glycolysis for fuel and promotes their proliferation. By altering polyamine levels or eIF5A2, cancer cell growth was significantly reduced in lab cultures. The findings suggest that the interaction between eIF5A2 and ribosomes could be a selective target for cancer treatment, although further research is needed to ensure healthy cells are not affected.