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The impact of polyphenols on chondrocyte growth and survival: a preliminary report

[PDF] FernandezArroyo_Chondrocyte.pdf (1.313Mb)
Identificadores
URI: http://hdl.handle.net/10481/38574
DOI: 10.3402/fnr.v59.29311
ISSN: 1654-6628
ISSN: 1654-661X
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Autor
Fernández-Arroyo, Salvador; Huete-Toral, Fernando; Pérez de Lara, María Jesús; Cádiz Gurrea, María de la Luz; Legeai-Mallet, Laurence; Micol Molina, Vicente; Segura Carretero, Antonio; Joven, Jorge; Pintor, Jesús
Editorial
Co-Action Publishing
Materia
Chondrodysplasia
 
Fibroblast growth factor
 
Hibiscus sabdariffa
 
Nutrition
 
Osteoarthritis
 
Polyphenols
 
Signaling pathways
 
Fecha
2015
Referencia bibliográfica
Fernández-Arroyo, S.; et al. The impact of polyphenols on chondrocyte growth and survival: a preliminary report. Food and Nutrition Research, 59: 29311 (2015). [http://hdl.handle.net/10481/38574]
Patrocinador
The authors are grateful for the constant support provided by the Hospital Universitari de Sant Joan and the Universitat Rovira i Virgili. Salvador Fernández-Arroyo is the recipient of a Sara Borrell grant (CD12/00672) from the Instituto de Salud Carlos III, Madrid, Spain. The authors also thank the Andalusian Regional Government Council of Innovation and Science for the Excellence Project P11-CTS-7625 and Generalitat Valenciana for the project PROMETEO/2012/007. This work was also supported by projects of the Fundación Areces and the Fundación MAGAR.
Resumen
Background: Imbalances in the functional binding of fibroblast growth factors (FGFs) to their receptors (FGFRs) have consequences for cell proliferation and differentiation that in chondrocytes may lead to degraded cartilage. The toxic, proinflammatory, and oxidative response of cytokines and FGFs can be mitigated by dietary polyphenols. Objective: We explored the possible effects of polyphenols in the management of osteoarticular diseases using a model based on the transduction of a mutated human FGFR3 (G380R) in murine chondrocytes. This mutation is present in most cases of skeletal dysplasia and is responsible for the overexpression of FGFR3 that, in the presence of its ligand, FGF9, results in toxic effects leading to altered cellular growth. Design: Different combinations of dietary polyphenols derived from plant extracts were assayed in FGFR3 (G380R) mutated murine chondrocytes, exploring cell survival, chloride efflux, extracellular matrix (ECM) generation, and grade of activation of mitogen-activated protein kinases. Results: Bioactive compounds from Hibiscus sabdariffa reversed the toxic effects of FGF9 and restored normal growth, suggesting a probable translation to clinical requests in humans. Indeed, these compounds activated the intracellular chloride efflux, increased ECM generation, and stimulated cell proliferation. The inhibition of mitogen-activated protein kinase phosphorylation was interpreted as the main mechanism governing these beneficial effects. Conclusions: These findings support the rationale behind the encouragement of the development of drugs that repress the overexpression of FGFRs and suggest the dietary incorporation of supplementary nutrients in the management of degraded cartilage.
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