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首页> 外文期刊>Cell biology international. >Hedgehog signalling is dispensable in the proliferation of stem cells from human exfoliated deciduous teeth.
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Hedgehog signalling is dispensable in the proliferation of stem cells from human exfoliated deciduous teeth.

机译:刺猬信号在人类脱落的乳牙的干细胞增殖中是不可或缺的。

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摘要

The hedgehog (Hh) signalling pathway is one of the key regulators in development with a dual role in cell fate specification, proliferation, and survival on different target cells. We have investigated the effect of recombinant sonic hedgehog (r-SHH) on extracted multipotent stem cells from human exfoliated deciduous teeth (SHED), which represent a potential stem cell population for therapeutic applications. Cell proliferation and cycle assays shown that r-SHH did not have a distinctive effect on cell cycle progression, nor did it increase cell number over a wide range of concentrations. Quantitative polymerase chain reaction (Q-PCR) also suggests that r-SHH treatment has no demonstrable influence on expression of proliferative genes (CCNE1 and KI67); in contrast, the anti-proliferative gene (CDKN1A) is overexpressed in response to SHH. Our findings have suggested the possibility that SHEDs demonstrate a different potential from human bone marrow mesenchymal stem cells (h-BMSCs) and dorsal neural progenitor in response to growth factors such as SHH.
机译:刺猬(Hh)信号传导途径是发育中的关键调节因子之一,在细胞命运规范,增殖和在不同靶细胞上的存活中起双重作用。我们已经研究了重组声波刺猬(r-SHH)对人脱落乳牙(SHED)提取的多能干细胞的影响,这代表了治疗用途的潜在干细胞群体。细胞增殖和周期分析表明,r-SHH对细胞周期进程没有显着影响,也没有在很宽的浓度范围内增加细胞数量。定量聚合酶链反应(Q-PCR)也表明,r-SHH处理对增殖基因(CCNE1和KI67)的表达没有明显的影响。相反,抗增殖基因(CDKN1A)响应SHH而过表达。我们的发现表明,SHED可能对人生长因子(如SHH)产生反应,而与人骨髓间充质干细胞(h-BMSCs)和背神经祖细胞具有不同的潜力。

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