The American Association for Cancer Research (AACR) Annual Meeting is running from April 7-13 in New Orleans, with hundreds of presentations on cutting-edge cancer research. The presentations run the gamut from preclinical studies to late-stage clinical trials. BioSpace looks at some of the preclinical and early-stage studies presented.

Normal immune cells that live near milk ducts in healthy breast tissue may play a key role in helping early breast cancer cells leave the breast for other parts of the body, researchers say.

The European Commission approved Merck’s anti-PD-1 therapy Keytruda for treating adult patients with relapsed or refractory classical Hodgkin lymphoma.