High-resolution X-ray microtomography for three-dimensional imaging of cardiac progenitor cell homing in infarcted rat hearts
Corresponding Author
Alessandra Giuliani
Dip. SAIFET, Università Politecnica delle Marche, Ancona, Italy
Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia, Ancona, Italy
Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
Università Politecnica delle Marche, Dip. SAIFET, Sezione Scienze Fisiche, Via Brecce Bianche 1, 60131 Ancona, Italia.Search for more papers by this authorCaterina Frati
Department of Pathology and Laboratory Medicine, University of Parma, Italy
CISTAC Centre, University of Parma, Italy
Search for more papers by this authorAlessandra Rossini
Vascular Biology and Regenerative Medicine Laboratory, Centro Cardiologico Monzino, Milano, Italy
Search for more papers by this authorVladimir S. Komlev
A. A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Science, Moscow, Russia
Search for more papers by this authorCostanza Lagrasta
Department of Pathology and Laboratory Medicine, University of Parma, Italy
CISTAC Centre, University of Parma, Italy
Search for more papers by this authorMonia Savi
CISTAC Centre, University of Parma, Italy
Department of Evolutionary and Functional Biology, University of Parma, Italy
Search for more papers by this authorStefano Cavalli
Department of Pathology and Laboratory Medicine, University of Parma, Italy
CISTAC Centre, University of Parma, Italy
Search for more papers by this authorCarlo Gaetano
Laboratorio di Patologia Vascolare, Istituto Dermopatico dell'Immacolata, Rome, Italy
Search for more papers by this authorFederico Quaini
CISTAC Centre, University of Parma, Italy
Department of Medicine and Biomedical Science, University of Parma, Italy
Search for more papers by this authorAdrian Manescu
Dip. SAIFET, Università Politecnica delle Marche, Ancona, Italy
Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia, Ancona, Italy
Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
Search for more papers by this authorFranco Rustichelli
Dip. SAIFET, Università Politecnica delle Marche, Ancona, Italy
Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia, Ancona, Italy
Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
Search for more papers by this authorCorresponding Author
Alessandra Giuliani
Dip. SAIFET, Università Politecnica delle Marche, Ancona, Italy
Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia, Ancona, Italy
Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
Università Politecnica delle Marche, Dip. SAIFET, Sezione Scienze Fisiche, Via Brecce Bianche 1, 60131 Ancona, Italia.Search for more papers by this authorCaterina Frati
Department of Pathology and Laboratory Medicine, University of Parma, Italy
CISTAC Centre, University of Parma, Italy
Search for more papers by this authorAlessandra Rossini
Vascular Biology and Regenerative Medicine Laboratory, Centro Cardiologico Monzino, Milano, Italy
Search for more papers by this authorVladimir S. Komlev
A. A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Science, Moscow, Russia
Search for more papers by this authorCostanza Lagrasta
Department of Pathology and Laboratory Medicine, University of Parma, Italy
CISTAC Centre, University of Parma, Italy
Search for more papers by this authorMonia Savi
CISTAC Centre, University of Parma, Italy
Department of Evolutionary and Functional Biology, University of Parma, Italy
Search for more papers by this authorStefano Cavalli
Department of Pathology and Laboratory Medicine, University of Parma, Italy
CISTAC Centre, University of Parma, Italy
Search for more papers by this authorCarlo Gaetano
Laboratorio di Patologia Vascolare, Istituto Dermopatico dell'Immacolata, Rome, Italy
Search for more papers by this authorFederico Quaini
CISTAC Centre, University of Parma, Italy
Department of Medicine and Biomedical Science, University of Parma, Italy
Search for more papers by this authorAdrian Manescu
Dip. SAIFET, Università Politecnica delle Marche, Ancona, Italy
Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia, Ancona, Italy
Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
Search for more papers by this authorFranco Rustichelli
Dip. SAIFET, Università Politecnica delle Marche, Ancona, Italy
Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia, Ancona, Italy
Istituto Nazionale Biostrutture e Biosistemi, Roma, Italy
Search for more papers by this authorAbstract
The recent introduction of stem cells in cardiology provides new tools in understanding the regenerative processes of the normal and pathological heart and has opened a search for new therapeutic strategies. Recent published reports have contributed to identifying possible cellular therapy approaches to generate new myocardium, involving transcoronary and intramyocardial injection of progenitor cells. However, one of the limiting factors in the overall interpretation of clinical results obtained by cell therapy is represented by the lack of three-dimensional (3D) high-resolution methods for the visualization of the injected cells and their fate within the myocardium. This work shows that X-ray computed microtomography may offer the unique possibility of detecting, with high definition and resolution and in ex vivo conditions, the 3D spatial distribution of rat cardiac progenitor cells, labelled with iron oxide nanoparticles, inside the infarcted rat heart early after injection. The obtained 3D images represent a very innovative progress as compared to experimental two-dimensional (2D) histological analysis, which requires time-consuming energies for image reconstruction in order to provide the overall distribution of rat clonogenic cells within the heart. Through microtomography, we were able to observe in 3D the presence of these cells within damaged cardiac tissue, with important structural details that are difficult to visualize by conventional bidimensional imaging techniques. This new 3D-imaging approach appears to be an important way to investigate the cellular events involved in cardiac regeneration and represents a promising tool for future clinical applications. Copyright © 2011 John Wiley & Sons, Ltd.
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