Related topics: cells · cancer cells · protein

Smoke from wildfires ages in the atmosphere

Emissions, like smoke from wildfires and exhaust from vehicles, go through chemical changes when they enter the atmosphere. New research from the University of Georgia shows, for the first time, that these changes may affect ...

Study reveals the dynamics of human milk production

For the first time, MIT researchers have performed a large-scale, high-resolution study of the cells in breast milk, allowing them to track how these cells change over time in nursing mothers.

Bringing cells closer to form new tissues

The field of tissue engineering is constantly exploring the possibility of using different properties of various biomaterials to achieve tissue regeneration. However, a key factor in creating effective tissues that can ameliorate ...

Scientists discover 'bulkheads' between liver cells

Researchers from Skoltech and their colleagues from Germany and the U.S. have discovered structures responsible for the shape of bile canaliculi, a network of canals in the liver. Published in the Journal of Cell Biology, ...

Basement membrane underpins tissue interactions in the skin

In a discovery that could pave the way for therapies that promote wound healing and alleviate skin diseases, RIKEN researchers have found that the network of molecules under the outermost layer of mouse skin, the skin epithelium, ...

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Epithelium

In biology and medicine, an epithelium is a tissue composed of cells that line the cavities and surfaces of structures throughout the body. Many glands are also formed from epithelial tissue. It lies on top of connective tissue, and the two layers are separated by a basement membrane.

In humans, epithelium is classified as a primary body tissue, the other ones being connective tissue, muscle tissue and nervous tissue.

Epithelium is often defined by the expression of the adhesion molecule e-cadherin (as opposed to n-cadherin, which is used by cells of the connective tissue).

Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport and detection of sensation and they commonly as a result present extensive apical-basolateral polarity (e.g. different membrane proteins expressed) and specialisation.

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