New technique may help quicken production of blood cancer drug
Researchers at Madurai Kamaraj University have developed a technique that promises to quicken the process of production of L-asparaginase, an enzyme used in treatment of acute lymphoblastic leukaemia. Human cells need steady supply of an amino acid, Asparagine, to build proteins and use an enzyme called asparagine synthetase to make it. Cancerous cells, however, rely on blood for their requirement of asparagine. L-Asparaginase therapy takes advantage of this. L-Asparaginase enzyme performs the opposite reaction to asparagine synthetase. It catalyses conversion of L-asparagine to aspartic acid and ammonia. If a large dose of this enzyme is introduced into the blood, it will circulate and continually break down all asparagine that it finds, ultimately starving the cells that depend on blood for asparagine supply. L-Asparaginase is an effective therapy for those cases where blood cells become cancerous, such as in acute lymphoblastic leukemia. L-Asparaginase cuts off the supp...