The human skin cell

The purple in the center is the cell’s nucleus. Surrounding it are wispy blue and white microtubules and filaments that make up the cell’s cytoskeleton. The cytoskeleton is made from protein structures called microtubules—the wispy threads surrounding the purple DNA-containing nucleus—and filaments of a protein called actin, seen here as the fine blue meshwork in … Read moreThe human skin cell

The squishiness of cancer cells

Cells are tiny, but what they can reveal about our health is profound. A misshapen nucleus is bad news. For any given cell, the nucleus — the home of most of a cell’s genetic material — generally takes a fairly consistent shape. But when things go wrong and disease takes hold, the nucleus can become … Read moreThe squishiness of cancer cells