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首页> 外文期刊>Biomaterials Science >Adipose-derived stem cell-secreted factors promote early stage follicle development in a biomimetic matrix
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Adipose-derived stem cell-secreted factors promote early stage follicle development in a biomimetic matrix

机译:脂肪衍生的干细胞分泌因子促进仿生基质早期卵泡发育

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Development of primary follicles in vitro benefits from a three-dimensional matrix that is enriched with paracrine factors secreted from feeder cells and mimics the in vivo environment. In this study, we investigated the role of paracrine signaling from adipose-derived stem cells (ADSCs) in supporting primary follicle development in a biomimetic poly(ethylene glycol) (PEG)-based matrix. Follicles co-cultured with ADSCs and follicles cultured in conditioned medium from ADSCs encapsulated in gels (3D CM) exhibited significantly (p < 0.01 and p = 0.09, respectively) improved survival compared to follicles cultured in conditioned medium collected from ADSCs cultured in flasks (2D CM) and follicles cultured without paracrine support. The gene expression of ADSCs suggested that the stem cells maintained their multipotency in the 3D PEG environment over the culture period, regardless of the presence of the follicles, while under 2D conditions the multipotency markers were downregulated. The differences in cytokine signatures of follicles exposed to 3D and 2D ADSC paracrine factors suggest that early cytokine interactions are key for follicle survival. Taken together, the biomimetic PEG scaffold provides a three-dimensional, in vivo-like environment to induce ADSCs to secrete factors which promote early stage ovarian follicle development and survival.
机译:从富含饲养细胞分泌的旁静脉因子和模拟体内环境中富集的三维基质的初级卵泡的发育益处的发育益处。在这项研究中,我们研究了梯素信号传导来自脂肪衍生的干细胞(ADSCs)的作用,在仿生聚(乙二醇)(PEG)基质中支持初级卵泡发育。用诸如在凝胶(3DCM)中包封的Adscs的AdSCs和卵泡中培养的卵泡与凝胶(3D cm)的调节培养基培养显着(p <0.01和p = 0.09),与在从烧瓶中培养的Adscs中收集的条件培养基中培养的卵泡相比提高存活率( 2d cm)和没有旁泪载体培养的卵泡。 ADSCs的基因表达表明,无论卵泡的存在,干细胞在3D PEG环境中保持其多因素,而不管卵泡的存在,而在2D条件下,多能率标志物被下调。暴露于3D和2D ADSC旁静脉因子暴露于3D和2D ADSC旁静脉因子的细胞因子签名的差异表明,早期细胞因子相互作用是卵泡存活的关键。仿生佩格斯支架占据了三维,体内环境,诱导ADSC分泌促进早期卵巢卵巢发育和存活的因素。

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