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Endothelial committed oral stem cells as modelling in the relationship between periodontal and cardiovascular disease
Author(s) -
Pizzicannella Jacopo,
Diomede Francesca,
Merciaro Ilaria,
Caputi Sergio,
Tartaro Armando,
Guarnieri Simone,
Trubiani Oriana
Publication year - 2018
Publication title -
journal of cellular physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.529
H-Index - 174
eISSN - 1097-4652
pISSN - 0021-9541
DOI - 10.1002/jcp.26515
Subject(s) - periodontal ligament stem cells , decellularization , microbiology and biotechnology , reactive oxygen species , lipopolysaccharide , porphyromonas gingivalis , chemistry , stem cell , mesenchymal stem cell , immunology , biology , medicine , periodontitis , biochemistry , alkaline phosphatase , extracellular matrix , enzyme
In the present study we have mimicked, in vitro, an inflammatory process using Lipopolysaccharide derived from Porphyromonas Gingivalis (LPS‐G) and human Periodontal Ligament Stem Cells induced to endothelial differentiation (e‐hPDLSCs). The research project has been organized into the three following steps: i) induction of hPDLSCs toward endothelial differentiation; ii) evaluation of the molecular signaling pathway involved in the response to the LPS‐G, and iii) functional response evaluation of the living construct constituted by porcine decellularized valve/e‐hPDLSCs treated with LPS‐G. Obtained results showed that 5 μg/ml LPS‐G stimulus provokes: a slowdown of cell growth starting from 24 hr and the release of IL6, IL8, and MCP1 molecules. Signaling network analyzed showed the activation of TLR4/ NFkB/ERK1/2/p‐ERK1/2 signaling mediated by MyD88 in LPS‐G stimulated e‐hPDLSCs, moreover a time course put in evidence a nuclear traslocation of ERK1/2 and p‐ERK1/2 in differentiated samples. Following, the ability of e‐hPDLSCs to expand and colonize the decellularized porcine heart valves was appraised at ultrastructural level. Considering that, the Reactive Oxygen Species (ROS) play an important role in the progression and development of cardiovascular disease (CVD), in LPS‐G living construct model e‐hPDLSCs/decellularized porcine heart valves (dPHV), ROS production was assessed. Time lapse experiments evidenced that LPS‐G provokes in e‐hPDLSCs a rapid and sustained increase in ROS generation, negligible on undifferentiated cells. From obtained data, by multiparametric analyses, a reasonable conclusion may be that the inflammation process activated by LPS‐G can affect endothelial cells and could represent in vivo a possible pathological and predictor state of CVD.