Related topics: cells · cancer cells · protein

A new molecular guardian of intestinal stem cells

Intestinal stem cells hold a fine balance between two potential forms: remaining as stem cells, or developing into intestinal epithelial cells. In a new study, researchers from Tokyo Medical and Dental University (TMDU) discovered ...

A new view on how tissues flow in the embryo

As embryos develop, tissues flow and reorganize dramatically on timescales as brief as minutes. This reorganization includes epithelial tissues that cover outer surfaces and inner linings of organs and blood vessels. As the ...

Using alveolar epithelia as a model for coronavirus infection

Before new drugs can be administered to people, researchers first have to investigate their effects using cell cultures and animal testing. Human cell cultures are increasingly being used as a model system for this purpose. ...

Extracellular forces help epithelial cells stick together

Different surfaces and organs of the body are covered by epithelial tissue, which is composed of cells tightly connected to each other. The cells can be attached through junctions that are in direct contact with the cytoskeletal ...

Images reveal how bacteria form communities on the human tongue

Using a recently developed fluorescent imaging technique, researchers in the United States have developed high-resolution maps of microbial communities on the human tongue. The images, presented March 24 in the journal Cell ...

More efficient risk assessment for nanomaterials

Nanotechnology is booming, but risk assessment for these tiny particles is a laborious process that presents significant challenges to the German Federal Institute for Risk Assessment (BfR). To find more efficient test methods, ...

Space travel can make the gut leaky

Bacteria, fungi, and viruses can enter our gut through the food we eat. Fortunately, the epithelial cells that line our intestines serve as a robust barrier to prevent these microorganisms from invading the rest of our bodies.

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