Immuno-Histo X-ray Phase Contrast Tomography: New 3D imaging technique for molecular tomography

TL;DR

This paper introduces Immuno-Histo-X-ray Phase Contrast Tomography, a novel 3D imaging technique that combines XPCT with molecular immunohistochemistry to visualize disease-relevant cells within whole organs.

Contribution

It presents the first proof-of-concept of a multi-scale 3D imaging method integrating XPCT and molecular targeting for cellular-level visualization in whole organs.

Findings

Demonstrated detailed imaging of whole organs with cellular resolution.

Successfully targeted relevant cells using metal nanoparticles and single-domain antibodies.

Laid the groundwork for advanced 3D bio-medical X-ray imaging techniques.

Abstract

The still unmet ability of following the fate of specific cells or molecules within the whole body would give an outstanding breakthrough in the comprehension of disease mechanisms and in the monitoring of therapeutic approaches. Our idea is to push forward the bio-nanotechnology to a level where it serves the most advanced 3D bio-medical imaging to provide a multi-scale imaging ranging from the whole organ down to the cellular level, enabling high-resolution visualization of disease-relevant cells within the whole disease-altered biological context. We present here the first proof-of-concept of a novel tomography procedure, Immuno-Histo-X-ray Phase Contrast Tomography (XPCT) that combines cutting-edge XPCT, which provides detailed image of the whole organ, with molecular imaging at the cellular level, identifying the relevant cells via an immunohistochemistry-based approach. We combine metal nanoparticles and a single-domain antibody that target relevant cells. Our results lay the foundation for a new generation of 3D-bio-medical X-ray imaging.