J Endod:前列腺素E2在根尖牙乳头干细胞中对IL-6和单核细胞趋化蛋白1/CCL2的影响

2020-02-01 lishiting MedSci原创

未发育完成的牙髓坏死牙齿的根管治疗在口腔治疗中是一项较大的挑战。然而,炎症因子对根尖牙乳头干细胞(SCAP)的调控作用还不完全清楚,如:前列腺素。这篇体外研究的目的是通过脂多糖(LPS)刺激SCAP,观察并评估前列素E2 (PGE2)对SCAP活性的影响。

未发育完成的牙髓坏死牙齿的根管治疗在口腔治疗中是一项较大的挑战。然而,炎症因子对根尖牙乳头干细胞(SCAP)的调控作用还不完全清楚,如:前列腺素。这篇体外研究的目的是通过脂多糖(LPS)刺激SCAP,观察并评估前列素E2 (PGE2)对SCAP活性的影响。

研究培养并鉴定SCAP。采用逐渐增加的脂多糖浓度(0.1-10 μg/mL),评估环氧化酶2 (COX-2/PTGS2)和PGE2受体(EP1-4)的基因表达。随后,在施以不同浓度LPS刺激前,对SCAP施以COX-2抑制剂(indomethacin)。通过酶联免疫吸附测定检测培养24小时后悬浮液中趋化因子CCL2/单核细胞趋化蛋白1以及IL-6的表达水平。数据通过analysis of variance和Tukey post检验进行统计学分析。

结果显示,与对照组相比,在施以1μg/mL浓度LPS刺激的组中,COX-2的表达明显上调。在所有实验组中均可检测到EP1-4的表达,并且表达水平相当。对SCAP施以indomethacin刺激,导致LPS诱导的CCL2和IL-6分泌下调。

结论:LPS促使SCAP中COX-2 (PTGS2)的表达上调,并通过PGE2诱导IL-6和CCL2的分泌。

原始出处:

Meneses CCB, Pizzatto LN, et al. Prostaglandin E2 Affects Interleukin 6 and Monocyte Chemoattractant Protein 1/CCL2 Production by Cultured Stem Cells of Apical Papilla. J Endod. 2020 Jan 24. pii: S0099-2399(19)30925-2. doi: 10.1016/j.joen.2019.12.001.

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    2021-01-11 charl1234567
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    2020-02-04 独孤立克

    干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦

    0

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    2020-02-03 kzlchina
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