Now in our 13th year of bringing you beautiful imagery from biomedical science every day

Search the archive of over 4000 images

Slowing Down

Extra chromosome in Down syndrome disrupts cells making them senescent-like – potential target for treatment

27 January 2022

Slowing Down

Caused by carrying an additional, third copy of chromosome 21, Down syndrome is associated with multiple physical and neurological symptoms. Within cells, the extra chromosome wreaks havoc, changing the shape of other chromosomes, and thus affecting gene expression. In neural progenitor cells (NPCs), giving rise to several key types of brain cells, this disruption results in traits reminiscent of senescent cells – these are cells that have stopped multiplying but not yet died, and can accumulate to cause problems during ageing. One characteristic is reduced cell migration, as seen in the NPC clusters above, with red tracks representing protein filaments involved in cell movement: compared to typical NPCs (top), Down’s cells (bottom, left) move less, but senolytic drugs, which target senescent cells, help to restore movement (bottom, right). Similarities between the mechanics of Down syndrome and senescence shine a different light on this condition, opening up new avenues for potential therapies.

Written by Emmanuelle Briolat

Search The Archive

Submit An Image

Follow on Tumblr

Follow on Instagram

What is BPoD?

BPoD stands for Biomedical Picture of the Day. Managed by the MRC Laboratory of Medical Sciences until Jul 2023, it is now run independently by a dedicated team of scientists and writers. The website aims to engage everyone, young and old, in the wonders of biology, and its influence on medicine. The ever-growing archive of more than 4000 research images documents over a decade of progress. Explore the collection and see what you discover. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

Read More

BPoD is also available in Catalan at with translations by the University of Valencia.