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According to the British Society of Gastroenterology, inflammatory bowel disease affects more than half a million people in the UK, predominantly striking individuals between 15 and 40 years old. Researchers now hope a novel, high-resolution microscope called “Curie” will help decode the mechanisms of conditions like Crohn’s disease and ulcerative colitis, running concurrently with recent genetic breakthroughs identifying distinct autoimmune subsets of patients.
How the Curie Microscope Operates at 20nm Resolution
Housed at the Rosalind Franklin Institute at the Harwell Science and Innovation Campus in Oxfordshire, the “Curie” microscope operates at ten times the resolution of conventional light microscopy, capturing structural details down to 20nm in size, according to Dr Karina Pombo-Garcia. The equipment utilizes a stimulated emission depletion (STED) two-laser technique that secured a Nobel prize in physics in 2014. Fluorescent tags absorb energy from a first laser beam to emit light, while a second doughnut-shaped beam suppresses fluorescence in its outer ring. This optical setup allows researchers to distinguish cellular structures that sit much closer together than standard fluorescence microscopes permit.
Did you know? The Curie microscope features specialized deformable mirrors that correct optical distortions. This allows scientists like Dr. Pombo-Garcia to capture clear images deep inside relatively thick tissues and mini-organs at near-body temperatures.
Visualizing Protein Complexes in Intestinal Barriers
PhD student Dimitrios Ioannidis uses the Curie microscope to investigate how cells lining internal organs, including the intestines, form protective barriers. According to Ioannidis, specific protein complexes govern this process and likely change over time. By observing these complexes from foetal development to adulthood, researchers aim to establish baseline healthy tissue structures and pinpoint deviations present in diseased states.
“If the structure changes, so does the function,” Ioannidis said, noting that understanding these structural shifts can reveal the root causes of conditions like IBD.
Uncovering Autoimmune Drivers in IBD Patients
While imaging technology advances in Oxfordshire, a study published in the New England Journal of Medicine by researchers from the University of Oxford, Newcastle University, and Cambridge University Hospitals NHS Foundation Trust sheds new light on the molecular underpinnings of IBD. The team analyzed more than 4,900 patients with Crohn’s disease and ulcerative colitis. They discovered that roughly 3.5% of these patients carry neutralizing autoantibodies against interleukin-10 (IL-10), a critical molecule that acts as a natural brake on inflammation.
According to Professor Holm Uhlig, a pediatric gastroenterologist and Director of the Centre for Human Genetics at the University of Oxford, these autoantibodies disable IL-10’s protective mechanism, letting inflammation persist unchecked. The researchers also linked this autoimmune response to a genetic variant, HLA-DRB1*01:03, which Oxford researchers previously connected to severe IBD three decades ago.
Funding and Support for UK Science Infrastructure
The unveiling of the Curie microscope coincided with science minister Chris McDonald announcing £67m in funding for the Rosalind Franklin Institute over five years starting in April 2027. An additional £90m was designated for the Henry Royce Institute over the same period through UK Research and Innovation (UKRI) core budgets. This funding arrival coincides with financial adjustments at the Science and Technology Facilities Council (STFC), which must find £162m in savings by 2030 due to rising energy costs, staffing increases, and exchange rate fluctuations.
While facilities like the Diamond Light Source and Central Laser Facility face a 15% funding drop, McDonald maintained that high-level funding remains strong and that national facilities must operate within sustainable budgets.
Frequently Asked Questions
What is inflammatory bowel disease (IBD)?
IBD includes Crohn’s disease and ulcerative colitis, chronic conditions characterized by inflammation of the digestive tract that frequently manifest between ages 15 and 40.
How does the Curie microscope improve on standard lab equipment?
According to researchers at the Rosalind Franklin Institute, the STED microscope achieves 20nm resolution—ten times that of conventional light microscopy—and uses deformable mirrors and temperature-controlled stages to image deep inside living mini-organs.
What causes IBD in the newly identified patient subset?
According to research published in the New England Journal of Medicine, a subset of patients develop autoantibodies that block interleukin-10, an anti-inflammatory molecule, a process linked to the genetic variant HLA-DRB1*01:03.
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