Tuesday, May 24, 2022

Erebosis: Another Form of Cell Death May Occur in the Gut

Amazing stuff! And where was it discovered? In the guts of the Drosophila melanogaster (fruit fly), one of the most famous lab animals of all times.

"... If erebosis occurs in the human gut, it could go wrong and play a role in certain [gastrointestinal] diseases. ..."

From the abstract:
"Many adult tissues are composed of differentiated cells and stem cells, each working in a coordinated manner to maintain tissue homeostasis during physiological cell turnover. Old differentiated cells are believed to typically die by apoptosis. Here, we discovered a previously uncharacterized, new phenomenon, which we name erebosis based on the ancient Greek word erebos (“complete darkness”), in the gut enterocytes of adult Drosophila. Cells that undergo erebosis lose cytoskeleton, cell adhesion, organelles and fluorescent proteins, but accumulate Angiotensin-converting enzyme (Ance). Their nuclei become flat and occasionally difficult to detect. Erebotic cells do not have characteristic features of apoptosis, necrosis, or autophagic cell death. Inhibition of apoptosis prevents neither the gut cell turnover nor erebosis. We hypothesize that erebosis is a cell death mechanism for the enterocyte flux to mediate tissue homeostasis in the gut."

Move Over Apoptosis: Another Form of Cell Death May Occur in the Gut | The Scientist Magazine®




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