Related topics: cells · cancer cells · protein

Cellular rivalry promotes healthy skin development

Not all cells are destined for greatness. Deemed unfit to serve in the body, some are killed off during early development through a process called cell competition. This phenomenon has previously been documented in flies ...

Cell-killing proteins suppress listeria without killing cells

New North Carolina State University research shows that key proteins known for their ability to prevent viral infections by inducing cell death can also block certain bacterial infections without triggering the death of the ...

Organoids reveal inflammatory processes in chlamydia infections

For a long time, researchers were only able to examine human cells infected with bacteria by using cancer cell lines. However, these transformed cells often give a false impression of the infection process. Fallopian tube ...

Breast milk as drug-delivery device

Treating sick babies with engineered breast milk could someday be a reality, according to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society. Modified cells in the liquid ...

Putting cells under pressure

As cells divide to form tissues and organs in multicell organisms, they move to where they belong, informed by a series of cues that scientists have yet to observe or fully understand.

Algorithms to locate centrioles in the cell

Investigators from the Neurodegenerative Diseases Research Group at the University of Extremadura are studying signaling mediated by a pathway known as planar cell polarity (PCP), which regulates the coordinated orientation ...

The Trojan horse of Staphylococcus aureus

Staphylococcus aureus causes different types of infections in humans, some of which are lethal. One of its most powerful weapons is α-toxin, which destroys host cells by forming pores in their membranes. Researchers at the ...

page 1 from 9

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.

This text uses material from Wikipedia, licensed under CC BY-SA