Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them. They help to connect your arteries and veins in addition to facilitating the exchange of ...

Interferons (IFNs) are widely expressed cytokines with strong antiviral properties. There are three main types of IFNs: type I IFNs, type II IFN and type III IFNs. In addition to their role in ...

Enhancers are genetic elements that have major roles in determining cell type-specific gene expression patterns and responses to internal and external signals. Mammalian genomes contain millions of ...

Vesicles are small cellular containers. They perform a variety of functions, such as helping to transport materials that an organism needs to survive and recycle waste materials. There are several ...