Image of fruit fly epithelial cells (pseudo colored in this micrograph)
Epithelial Cell Signaling Helps Maintain Tissue Integrity
Using a transgenic fruit fly model, researchers demonstrate how epithelial barriers are maintained in living organisms despite high levels of cell turnover and death.
ABOVE: Romain Levayer
Epithelial Cell Signaling Helps Maintain Tissue Integrity
Epithelial Cell Signaling Helps Maintain Tissue Integrity

Using a transgenic fruit fly model, researchers demonstrate how epithelial barriers are maintained in living organisms despite high levels of cell turnover and death.

Using a transgenic fruit fly model, researchers demonstrate how epithelial barriers are maintained in living organisms despite high levels of cell turnover and death.

ABOVE: Romain Levayer
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Mysterious Immune Cells Change the Gut Lining to Accommodate Diet
Annie Melchor | Apr 6, 2021
A study shows gamma-delta T cells in mice respond to shifts in nutrients by changing the cellular composition of the intestinal epithelium.
Questions Raised About Widely Used Blood-Brain Barrier Model
Catherine Offord | Feb 16, 2021
A study has sparked controversy by suggesting that cells made using a popular lab protocol have been misidentified, with potentially serious repercussions for brain research. Critics say the significance of the findings has been overstated.
Cracking Down on Cancer: A Profile of Owen Witte
Diana Kwon | Apr 1, 2020
Through his studies on cancer-causing viruses, the University of California, Los Angeles, professor has helped develop lifesaving treatments.
Fastest-Ever Cell Contractions Observed in Primitive Invertebrate
Abby Olena | Dec 13, 2018
The microscopic marine animal Trichoplax adhaerens may use rapid changes in cell shape to avoid being ripped apart by forces in the ocean.
Caught on Camera
The Scientist Staff | Dec 1, 2018
Selected Images of the Day from the-scientist.com
Image of the Day: Van Gogh Microscopy
The Scientist Staff, The Scientist Staff | Jan 10, 2018
Scientists identify the cells that give rise to the soft tissue cancer rhabdomyosarcoma. 
Skin “Remembers” Wounds, Heals Faster the Second Time Around
Katarina Zimmer | Jan 1, 2018
After an initial wounding, genes needed for repair remain ready for action.
Image of the Day: Stretchy Chicken Skin
The Scientist Staff | Aug 25, 2017
In a developing chicken embryo, skin cells pull on each other, forming multicellular mounds that eventually turn into properly-spaced feathers.
Rhinoviruses Exposed
Fred Adler | Jan 31, 2013
Some of these insidious viruses expertly subvert the host immune system, allowing their unhindered proliferation.
Enter the Third Dimension
Amber Dance | Sep 1, 2012
Cell culture goes 3-D with devices that better mimic in vivo conditions.
Skin Cells Cause Cancer?
Cristina Luiggi | Jan 6, 2012
Certain skin-residing immune cells may—under specific conditions—play a direct role in initiating skin cancer after exposure to environmental toxins.