Mathematical modeling shows that local populations of the malaria parasite self-organize into a limited number of transient but distinct strains through competition for hosts in immunity space.

Exposing rats to acute stress increased the generation of new neurons in a subregion of the hippocampus, and improved the animals' performance in a memory task two weeks later.

Proteins produced by mast cells modulate the permeability of blood vessels, and may determine whether patients infected with dengue virus develop life-threatening complications.

A protein called PVRL4 has a central role in a number of cancers that originate in epithelial tissue, and anti-PVRL4 antibodies could be used to treat some of these cancers.

The eye produces a protein that inhibits the growth of blood vessels in the deep retina, which includes the photoreceptor layer, and disruption of this process can lead to blindness.

The Botryllus schlosseri genome yields insights into the evolution of hematopoiesis.

Cells repair damage to their outer membranes not by patching them as previously thought, but by using proteins called caveolins to remove the damaged regions by endocytosis.