Science is driven by the desire to scratch an intellectual itch. But no problem can ever be as frustrating as the real irritation caused by chickenpox. This quintessential childhood illness – which infects over 90% of people before adulthood – brings about painful blisters and rashes that cry out to be scratched. It’s caused by the varicella zoster virus (VZV), which attacks skin cells' genetic codes and coerces them into producing the characteristic blebs. The virus's favourite victims are scaffold-like skin cells, in which it targets a specific gene that helps adapt the cell to the different roles it plays across multiple skin layers. In an artificial environment that mimics human skin, infected cells (in green) exhibit no activity of this important gene (in red), and thus function abnormally. A small piece of the complex intellectual puzzle, scientists admit. But one step closer to satisfying the real itch.
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.
BPoD is also available in Catalan at www.bpod.cat with translations by the University of Valencia.