例如:"lncRNA", "apoptosis", "WRKY"

Injectable hyaluronic acid down-regulates interferon signaling molecules, IGFBP3 and IFIT3 in the bovine intervertebral disc.

Acta Biomater. 2017 Apr 01;52:118-129. Epub 2016 Dec 18
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摘要


β signaling molecules. Additionally, immunostaining was used to measure protein expression. Our results show that HA treatment significantly down-regulates IFNAR1, IFNAR2, JAK1, IFIT3 and IGFBP3 mRNA expression in the inflamed groups. Protein analysis confirmed the PCR results. In the extracellular matrix, aggrecan and collagen I were up-regulated while ADAMTS4 was down-regulated upon treatment of the injured and inflamed discs with HA. Hence, HA demonstrates both an anti-inflammatory role, resulting in the down-regulation of IFIT3 and IGFBP3 in the AF, and a matrix modulatory effect by up-regulating aggrecan and collagen I OF SIGNIFICANCE:The pro-inflammatory environment of the degenerated IVD represents a challenge for regenerative therapies. The study demonstrates that hyaluronan acts as an anti-inflammatory molecule by down-regulating IFNAR1 and IFNAR2, the signaling molecules JAK1 and the downstream apoptotic targets IGFBP3 and IFIT3. We also demonstrated that hyaluronan modulates the disc matrix environment by increasing aggrecan and collagen I synthesis and down-regulating ADAMTS4 that degrades the matrix under inflammatory conditions. The significance of this work lies in the fact that hyaluronan acts as an anti-inflammatory molecule by shifting the disc environment towards a more anabolic state and by promoting native IVD matrix production.

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原始数据


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