Scientists have long understood that parts of cells, called organelles, evolved to have certain shapes and sizes because their forms are closely related to how they function. Now, Johns Hopkins ...

Recycling takes place in our cells at all times: in a process called autophagy, cell components that are no longer needed are enclosed by membranes and broken down into their basic building blocks.

Cells degrade components that are no longer needed through autophagy. New results show that a weak molecular interaction is essential for this process. By modifying this interaction, it is possible to ...

Most human nerve cells last a lifetime without renewal. A trait echoed within the cells' components, some enduring as long as the organism itself. Most human nerve cells last a lifetime without ...