Cell Death Dis:P2X7受体在炎症介导的牙周韧带干细胞成骨变化中的作用

2019-01-13 MedSci MedSci原创

越来越多的证据表明,牙周韧带干细胞(PDLSCs)的多能性在炎症条件下受损,然而,潜在的机制仍尚未可知。在本研究中,我们假设P2X7受体(P2X7R)是与PDLSC的炎症相关损伤相关的关键分子。我们首先在正常和炎症条件下研究PDLSC中的P2X7R表达,然后测定P2X7R激动剂(BzATP)或拮抗剂(BBG)在各种条件下对PDLSC成骨的影响。基因修饰的PDLSC用于进一步检查P2X7R的作用和P

越来越多的证据表明,牙周韧带干细胞(PDLSCs)的多能性在炎症条件下受损,然而,潜在的机制仍尚未可知。在本研究中,我们假设P2X7受体(P2X7R)是与PDLSC的炎症相关损伤相关的关键分子。

我们首先在正常和炎症条件下研究PDLSC中的P2X7R表达,然后测定P2X7R激动剂(BzATP)或拮抗剂(BBG)在各种条件下对PDLSC成骨的影响。基因修饰的PDLSC用于进一步检查P2X7R的作用和P2X7R增强的骨生成潜在的信号传导途径。我们发现炎症状态降低了PDLSCs中P2X7R的表达,并减少了这些细胞的成骨作用。此外,通过BzATP激活P2X7R或通过基因转导过表达P2X7R逆转了PDLSC成骨分化中炎症介导的减少。当筛选选择的成骨相关信号分子时,PI3K-AKT-mTOR途径被鉴定为可能参与P2X7R增强的PDLSC成骨。

综上所述,该研究结果揭示了P2X7R在炎症条件下PDLSC成骨过程中的关键作用,提示了一种新的治疗靶点,用于逆转或挽救PDLSC中炎症介导的变化,用于未来的主流治疗用途。

原始出处:

Xin-Yue Xu, Xiao-Tao He, et al., Role of the P2X7 receptor in inflammation-mediated changes in the osteogenesis of periodontal ligament stem cells. Cell Death Dis. 2019 Jan; 10(1): 20.

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    2019-12-24 zhaojie88
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    2019-01-15 zhaojie88
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    2019-01-15 cy0328