As an embryo develops from a small cluster of stem cells, those once "blank slate" cells begin to take on more specialized ...

Most cell signals are chemical in nature. For example, prokaryotic organisms have sensors that detect nutrients and help them navigate toward food sources. In multicellular organisms, growth factors, ...

The cells lining skin capillaries are constantly sending each other messages—tiny pulses of calcium that help regulate blood flow, sense physical forces and keep vessel walls intact. Scientists have ...

Cells rely on complex signaling networks in which different molecular pathways communicate with one another. Small GTPases ...

Brain cells grow faster in children with some forms of autism due to distinct changes in core cell signaling patterns, according to research from the laboratory of Anthony Wynshaw-Boris, MD, PhD, ...

Gastric cancer remains one of the world’s deadliest malignancies, ranking fifth among the most commonly diagnosed cancers and ...