Targeted cancer therapies block the growth and spread of cancer cells by interfering with specific molecules that are involved in the growth, progression, and spread of cancer. This helps to minimise treatment side effects.
In recent study scientist packaged Doxorubicin, a common cancer drug into bovine sperm cells .It was outfitted with tiny magnetic harnesses. A magnetic field was used to guide a sperm-hybrid motor to a lab-grown tumor of cervical cancer cells. When the harness arms pressed against the tumor, the arms opened up, releasing the sperm. The sperm then swam into the tumor, fused its membrane with that of a cancer cell, and released the drug. When released in thousands, drug-loaded sperm killed more than 80 percent of a cancerous growth.
The study is still in primitive stage and need further work to ensure the system could work in animals and eventually humans. Sperms are ideal candidates to operate in physiological environments, as they neither express pathogenic proteins nor proliferate to form undesirable colonies like microbes.