Sam Chawner

@samchawner.bsky.social

Senior Research Fellow (Wellcome Trust) at Cardiff University | ARFID | Eating Disorders | Genetic Conditions | Child Mental Health | 🏳️‍🌈

Always a festive treat, running this science image competition alongside colleagues from the MRC ✨ 2024's winner 'illuminates complex parasite structures', offering clues for potential drug targets 🎄 Order your 'Twinkling Toxoplasma' cards now! 👇 #MedSky #AcademicSky

Toxoplasmosis is an illness caused by an infection with the parasite Toxoplasma gondii. Scientists often use microscopy to explore the biology of parasites such as this, seeking clues for potential drug targets.

To create this image, shaped like a Christmas tree, Dr Kseniia Bondarenko grew human skin cells in the lab, and then infected them with Toxoplasma. She then used fluorescent dyes to highlight various parasite structures, and captured high-resolution images.

The high-resolution images revealed the parasites’ basket-like skeleton (shown in yellow), inner shell (magenta), and DNA (blue). The ‘star’ on top of the tree is a regular-microscopy snapshot of an unusually large parasite rosette – a cluster of parasites that clump together inside the body.

This technique has the potential to illuminate complex parasite structures, so that areas of infection within the body can be more effectively targeted and treated.
Medical Research Foundation@medresfdn.bsky.social · 2y ago

Congrats Dr Kseniia Bondarenko, 1st place winner of our Festive Science Image Competition with the MRC! 🎉 Her image showcases lab-grown human skin cells infected with a parasite & lit up using fluorescent dyes. #MedSky Order your 'Twinkling Toxoplasma' Season's Greetings cards here: bit.ly/3ZDCY67