J Periodontol:骨髓基质细胞中瘦素过表达促进骨质疏松大鼠牙周再生

2017-08-17 MedSci MedSci原创

骨质疏松与广泛性牙周炎和受损的牙周愈合有关。然而,在骨质疏松症的影响下,缺乏有关再生方法的结果的信息。本研究调查了瘦素(LEP)过表达对骨质疏松大鼠牙周膜开窗缺损模型中骨髓基质细胞(BMSCs)的再生潜力的影响。

骨质疏松与广泛性牙周炎和受损的牙周愈合有关。然而,在骨质疏松症的影响下,缺乏有关再生方法的结果的信息。本研究调查了瘦素(LEP)过表达对骨质疏松大鼠牙周膜开窗缺损模型中骨髓基质细胞(BMSCs)的再生潜力的影响。

用携带人(h)LEP基因的腺病毒转染大鼠骨髓基质干细胞。评估细胞增殖和成骨分化。将用转染细胞接种的β-磷酸三钙骨架植入裸鼠中以调查异位成骨并植入骨质疏松大鼠缺损以研究牙周再生。通过组织学方法分析再生牙周组织和骨样组织。

结果:hLEP过表达诱导BMSCs的成骨分化,可以通过上调成骨相关基因如Runt相关转录因子2,碱性磷酸酶(ALP)和I型胶原蛋白以及ALP活性增加和增强矿化而证明。植入含hLEP-BMSC的支架组的小鼠显示比其他组有更广泛的骨样组织形成。 10天和28天后,用hLEP-BMSCs治疗牙周缺损也被很大程度的填充,并且含有牙骨质和牙周韧带。

结论:骨髓基质干细胞中hLEP过表达可刺激骨质疏松症患者的牙周再生,可能是骨质疏松症患者牙周再生有希望的方法。

原始出处:

Baoyu Zheng, Jun Jiang, Yuling Chen,et al. Leptin Overexpression in Bone Marrow Stromal Cells Promotes Periodontal Regeneration in a Rat Model of Osteoporosis. Journal of periodontal research. 2017 August. doi: 10.1902/ jop.2017.170042

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    2017-12-23 lq1767
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    2018-06-14 feather89
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    2017-08-19 sodoo
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    2017-08-19 Eleven17
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    2017-08-17 惠映实验室

    学习了,谢谢。

    0

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