"Dr. Allison identified a checkpoint called CTLA-4. Dr. Honjo found a different one, called PD-1. Those discoveries made it possible to develop drugs that would stop the checkpoints from working, so that the T-cells would be free to fight cancer. The process is often referred to as taking the brakes off the immune system."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.