Amino Acid Starvation Slows Brain Tumor Growth in Mice

Scientists discovered that glioblastoma brain tumors in mice grow more slowly when deprived of the amino acid serine, revealing a potential metabolic vulnerability that could be targeted for therapy. The tumors typically steal nutrients like serine from their environment to support rapid growth, but a serine-deficient diet slowed tumor progression and extended survival in mice, offering new hope for treatment strategies.