Cellular Dynamics International, Inc. (CDI) entered a Center of Excellence agreement with AstraZeneca to accelerate drug discovery efforts using human induced pluripotent stem cell (iPSC) lines and tissue cells. Financial terms were not disclosed.   iPSC technology is based on reprogramming adult cells from a blood sample or a skin biopsy to a pluripotent stem cell state and has shown promise in delivering human cell models of high utility in drug discovery, without the ethical concerns linked t...