sentences:  Levitzki also showed that PDGFR kinase inhibitors (PDGFR directed tyrphostins), released from nanoparticles or from a drug eluting stent can be used to inhibit restenosis after balloon angioplasty.In 2006 his research team developed a method for inducing brain tumor cells to "commit suicide".In 1990, he was awarded the Israel Prize, in life sciences (following in the footsteps of his father, Jacob Levitzki, who had received the prize, for exact sciences, in 1953).