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Fibroblast-Derived 3D Matrix System Applicable to Endothelial Tube Formation Assay

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Fibroblast involvement in soft connective tissue calcification.

Ivonne Ronchetti¹, Federica Boraldi, Giulia Annovi

¹PXELab, University of Modena and Reggio Emilia Modena, Italy.

Frontiers in Genetics

|March 8, 2013

Summary

Soft connective tissue calcification involves metabolic changes in mesenchymal cells. This study investigates fibroblast involvement in pseudoxanthoma elasticum, offering insights into pathologic mineralization.

Keywords:

PXE PXE-like disorders ectopic calcification elastin extracellular matrix fibroblasts mesenchymal stromal cells

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Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation

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Published on: May 31, 2016

Area of Science:

Biochemistry
Cell Biology
Dermatology

Background:

Soft connective tissue calcification results from altered mesenchymal cell metabolism.
The roles of smooth muscle cells and pericytes in ectopic calcification are known, but fibroblast involvement remains unclear.
Pseudoxanthoma elasticum (PXE) provides a model to study fibroblast-driven calcification.

Purpose of the Study:

To investigate the mechanisms of mineral deposit precipitation within elastic fibers.
To explore the influence of genetic background and extracellular environment on fibroblast-associated calcifications.
To enhance understanding of mesenchymal cell roles in pathologic mineralization.

Main Methods:

Isolation of dermal fibroblasts from PXE patients and individuals with PXE-like conditions.
Analysis of cellular metabolic changes and calcification pathways.
Histopathological examination of mineral deposition in elastic fibers.

Main Results:

Fibroblasts from PXE patients exhibit altered pro- and anti-calcifying pathway balances.
Mineral deposits were observed precipitating within elastic fibers.
Both genetic and environmental factors influence fibroblast calcification in PXE.

Conclusions:

Fibroblast metabolic alterations are key drivers of soft connective tissue calcification in PXE.
Understanding fibroblast roles is crucial for addressing pathologic mineralization.
This research improves knowledge of mesenchymal cell contributions to calcification disorders.