Aims: This study aims to evaluate the bone regeneration in a rat calvarias critical size bone defect treated with a construct consisting of collagen type I and human amniotic fluid stem cells (AFSCs) after oral administration of phytoestrogen ferutinin. Main methods: In 12 week old male rats (n = 10), we performed two symmetric full-thickness cranial defects on each parietal region, and a scaffold was implanted into each cranial defect. The rats were divided into four groups: 1) collagen scaffold, 2) collagen scaffold + ferutinin at a dose of 2 mg/kg/5 mL, 3) collagen scaffold + AFSCs, and 4) collagen scaffold + AFSCs + ferutinin. The rats were sacrificed after 4 weeks, and the calvariae were removed, fixed, embedded in paraffin and cut into 7 pm thick sections. Histomorphometric measures, immunohistochemical and immunofluorescence analyses were performed on the paraffin sections. Key findings: The histomorphometric analysis on H&E stained sections showed a significant increase in the regenerated area of the 4th group compared with the other groups. Immunohistochemistly performed with a human anti-mitochondrial antibody showed the presence of AFSCs 4 weeks after the transplant. Immunofluorescence analysis revealed the presence of osteocalcin and estrogen receptors (ER alpha. and GPR30) in all-groups, with a greater expression of all markers in samples where the scaffold was treated with AFSCs and the rats were orally administered ferutinin. Significance: Our results demonstrated that the oral administration of ferutinin is able to improve the bone regeneration of critical-size bone defects in vivo that is obtained with collagen-AFSCs constructs.
|Data di pubblicazione:||2015|
|Titolo:||Critical-size bone defect repair using amniotic fluid stem cell/collagen constructs: Effect of oral ferutinin treatment in rats|
|Autore/i:||Zavatti, Manuela; Bertoni, Laura; Maraldi, Tullia; Resca, Elisa; Beretti, Francesca; Guida, Marianna; LA SALA, Giovanni Battista; DE POL, Anto|
|Digital Object Identifier (DOI):||10.1016/j.lfs.2014.10.020|
|Codice identificativo ISI:||WOS:000349590800024|
|Codice identificativo Scopus:||2-s2.0-84921645794|
|Codice identificativo Pubmed:||25445219|
|Citazione:||Critical-size bone defect repair using amniotic fluid stem cell/collagen constructs: Effect of oral ferutinin treatment in rats / Zavatti, Manuela; Bertoni, Laura; Maraldi, Tullia; Resca, Elisa; Beretti, Francesca; Guida, Marianna; LA SALA, Giovanni Battista; DE POL, Anto. - In: LIFE SCIENCES. - ISSN 0024-3205. - STAMPA. - 121(2015), pp. 174-183.|
|Tipologia||Articolo su rivista|
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