CoCID project aims to develop soft X-ray microscope for visualizing cellular origin of diseases

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CoCID (Compact Cell Imaging Device), a €5.7 million, four-year, pan-European research and innovation project, funded through Horizon 2020, has officially commenced. CoCID is focused on the development of a soft X-ray-based methodology that enables fast and inexpensive three-dimensional imaging of whole internal structure of intact biological cells.

The objective of CoCID is to develop a lab-scale, soft X-ray microscope, which can be used as a research tool to help scientists to understand the cellular origin of diseases.

The benefits of this compact imaging device will be demonstrated through a series of virology use cases that enable researchers to decipher critical changes in cell morphology induced by viruses, such as SARS-CoV-2, in their host cell with the aim to identify possible targets for therapy suppressing virus replication and/or cellular responses of relevance to the virus.

The CoCID project is being coordinated by University College Dublin (UCD) with project partners; Heidelberg University Hospital and the Ruprecht-Karls-University Heidelberg, in Germany, the University of Jyväskylä, in Finland; the National Centre for Biotechnology and the Alba Synchrotron, in Spain along with SiriusXT, a UCD spin-out company that is licensing miniaturized light source technology from UCD to develop the microscope.

"Soft x-ray microscopy (SXM) is an extremely exciting, potentially game-changing technique that will allow us to visualize virally infected cells in exquisite detail," said Assistant Professor Nicola Fletcher, UCD School of Veterinary Medicine.

She added, "We will use it to investigate the mechanisms by which the hepatitis E virus, an emerging infectious disease that is transmitted to humans from infected animals, infects cells from different species. The ultimate aim is to explore new treatment options for this important viral infection."

Professor Ralf Bartenschlager, a Molecular Virologist at the Ruprecht-Karls-Universität Heidelberg commented, "as a virologist working on how SARS-CoV-2 interacts with and alters its host cell, we will greatly benefit from the development of a soft X-ray microscope that allows us to gain unprecedented insights into this intimate interaction. We have previously used several imaging technologies to address the question of host cell reprogramming by viruses, but each technique has its limitations."

Dr Pablo Gastaminza, a Principal Investigator in the Department of Molecular and Cellular Biology at the Spanish National Research Council said, "We have successfully used the synchrotron-based cryo-SXM for visualizing the alterations in cellular organelle morphology and distribution associated with the replication of hepatitis C virus in cell culture. A compact, lab-based microscope would simplify the sophisticated infrastructure while providing new opportunities for a broader use of cryo-SXM as a complementary approach to other microscopy techniques."

"SXM will provide an excellent tool for our studies of intranuclear interactions of oncolytic herpes simplex virus," said Dr Maija Vihinen-Ranta, a Virologist and a Principal Investigator at the University of Jyväskylä. She added "Importantly, the correlative approach, where SXM is combined with fluorescent microscopy, can be used to incorporate the molecular localization of labeled data, e.g. chromatin, capsids, cellular proteins, into a 3D SXM reconstruction of an infected cell."

There are only a few cryo-SXT beamlines operating worldwide and therefore the access to the technique is quite restricted compared to other fields. Having laboratory systems which can deliver comparable results, although at a fixed energy, would allow the community to grow much faster and would enable the field to deliver better competitive science."

Dr Eva Pereiro, Principal Beamline Scientist, ALBA Synchrotron Light Source

"I find the potential of soft x-ray microscopy tremendous. It is like a medical CT scan but instead of a patient, single cells are imaged at the nanometer level," said Dr Venera Weinhardt, a cell imaging expert from the Centre for Organismal Studies at the University of Heidelberg. She added "Project CoCID will help demonstrate the benefits of making this amazing technology available as a laboratory device, ubiquitous in all biomedical research laboratories."

"This project award not only helps fund the advancement of our SXT-100 microscope", said Tony McEnroe, CEO and co-founder of SiriusXT, "it also allows us to collaborate closely with European leaders in virology research to demonstrate the benefits of soft x-ray microscopy in progressing their understanding of pathogen infection pathways."


The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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