کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2171944 1093511 2014 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adipose-derived stem cells alleviate osteoporosis by enchancing osteogenesis and inhibiting adipogenesis in a rabbit model
ترجمه فارسی عنوان
سلول های بنیادی حاصل از چربی از پوکی استخوان جلوگیری می کنند و باعث کاهش استئوژنز می شوند.
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
چکیده انگلیسی

Background aimsOsteoporosis (OP) is characterized by a reduction in bone quality, which is associated with inadequacies in bone marrow mesenchymal stromal cells (BMSCs). As an alternative cell source to BMSCs, adipose-derived stem cells (ASCs) have been investigated for bone repair because of their osteogenic potential and self-renewal capability. Nevertheless, whether autologous ASCs can be used to promote bone regeneration under osteoporotic conditions has not been elucidated.MethodsThe OP rabbit model was established by means of bilateral ovariectomy (OVX). Both BMSCs and ASCs were harvested from OVX rabbits and expanded in vitro. The effects of osteogenic-induced ASCs on the in vitro adipogenic and osteogenic capabilities of BMSCs were evaluated. Autologous ASCs were then encapsulated by calcium alginate gel and transplanted into the distal femurs of OVX rabbits (n = 12). Hydrogel without loading cells was injected into the contralateral femurs as a control. Animals were killed for investigation at 12 weeks after transplantation.ResultsOsteogenic-induced ASCs were able to promote osteogenesis and inhibit adipogenesis of osteoporotic BMSCs through activation of the bone morphogenetic protein 2/bone morphogenetic protein receptor type IB signal pathway. Local bone mineral density began to increase at 8 weeks after ASC transplantation (P < 0.05). At 12 weeks, micro–computed tomography and histological evaluation revealed more new bone formation in the cell-treated femurs than in the control group (P < 0.05).ConclusionsThis study demonstrated that ASCs could stimulate proliferation and osteogenic differentiation of BMSCs in vitro and enhance bone regeneration in vivo, which suggests that autologous osteogenic-induced ASCs might be useful to alleviate OP temporally.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cytotherapy - Volume 16, Issue 12, December 2014, Pages 1643–1655
نویسندگان
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