Evidence that miR-146a attenuates aging- and trauma-induced osteoarthritis by inhibiting Notch1, IL-6, and IL-1 mediated catabolism.

Evidence that miR-146a attenuates aging- and trauma-induced osteoarthritis by inhibiting Notch1, IL-6, and IL-1 mediated catabolism.
复制标题

有证据表明 miR-146a 通过抑制 Notch1、IL-6 和 IL-1 介导的分解代谢来减轻衰老和创伤引起的骨关节炎

DOI:
10.1111/acel.12752
复制
发表时间:
2018-06
期刊:
影响因子:
7.8
通讯作者:
Chen Q
Chen Q
中科院分区:
生物学1区
文献类型:
--
作者:
Guan YJ;Li J;Yang X;Du S;Ding J;Gao Y;Zhang Y;Yang K;Chen Q

文献摘要

参考文献

被引文献

相似文献

原发性骨关节炎 (OA) 与衰老相关,而创伤后 OA (PTOA) 则与机械损伤和炎症相关。目前尚不清楚这两种类型的骨关节炎是否具有共同的机制。我们发现 miR-146a 是一种与炎症相关的 microRNA,在生理范围内被循环负荷激活,但在人关节软骨细胞中被机械超负荷抑制。此外,在人类关节软骨的 OA 病变中,miR-146a 表达降低。为了了解 miR-146a 在骨关节炎中的作用,我们系统地表征了 miR-146a 在全身缺乏或在软骨形成细胞中过度表达的小鼠。 miR-146a 缺陷的小鼠会出现早期发病的 OA,其特征是软骨变性、滑膜炎和骨赘。相反,miR-146a 软骨形成过度表达的小鼠对衰老相关的 OA 具有抵抗力。 miR-146a 的缺失会加剧 PTOA 期间的关节软骨退化,而 miR-146a 的软骨形成过度表达会抑制 PTOA。因此,miR-146a 可抑制小鼠体内的 OA 和 PTOA,这表明 miR-146a 启动了一种共同的保护机制。 miR-146a 抑制分解代谢因子的 IL-1β,我们提供了 miR-146a 直接抑制 Notch1 表达的证据。因此,Notch1 的这种抑制可以解释 miR-146a 对炎症介质的抑制。 miR-146a 的软骨过度表达或 Notch1 抑制剂的关节内给药可减轻 miR-146a 缺陷小鼠中 IL-1β 诱导的分解代谢并挽救关节退化,表明 miR-146a 足以通过抑制关节中的 Notch 信号传导来保护 OA 发病机制。因此,miR-146a 可用于对抗衰老相关的 OA 和机械损伤/炎症诱导的 PTOA。
Primary osteoarthritis (OA) is associated with aging, while post‐traumatic OA (PTOA) is associated with mechanical injury and inflammation. It is not clear whether the two types of osteoarthritis share common mechanisms. We found that miR‐146a, a microRNA‐associated with inflammation, is activated by cyclic load in the physiological range but suppressed by mechanical overload in human articular chondrocytes. Furthermore, miR‐146a expression is decreased in the OA lesions of human articular cartilage. To understand the role of miR‐146a in osteoarthritis, we systemically characterized mice in which miR‐146a is either deficient in whole body or overexpressed in chondrogenic cells specifically. miR‐146a‐deficient mice develop early onset of OA characterized by cartilage degeneration, synovitis, and osteophytes. Conversely, miR‐146a chondrogenic overexpressing mice are resistant to aging‐associated OA. Loss of miR‐146a exacerbates articular cartilage degeneration during PTOA, while chondrogenic overexpression of miR‐146a inhibits PTOA. Thus, miR‐146a inhibits both OA and PTOA in mice, suggesting a common protective mechanism initiated by miR‐146a. miR‐146a suppresses IL‐1β of catabolic factors, and we provide evidence that miR‐146a directly inhibits Notch1 expression. Therefore, such inhibition of Notch1 may explain suppression of inflammatory mediators by miR‐146a. Chondrogenic overexpression of miR‐146a or intra‐articular administration of a Notch1 inhibitor alleviates IL‐1β‐induced catabolism and rescues joint degeneration in miR‐146a‐deficient mice, suggesting that miR‐146a is sufficient to protect OA pathogenesis by inhibiting Notch signaling in the joint. Thus, miR‐146a may be used to counter both aging‐associated OA and mechanical injury‐/inflammation‐induced PTOA.
DOI: 10.1096/fj.14-252783
发表时间: 2014-10-01
期刊: FASEB JOURNAL
影响因子: 4.8
作者:
Guan, Yingjie;Yang, Xu;Chen, Qian
通讯作者: Chen, Qian
DOI: 10.1038/srep19094
发表时间: 2016-01-11
期刊: Scientific reports
影响因子: 4.6
作者:
Chu M;Rong J;Wang Y;Zhu L;Xing B;Tao Y;Zhuang X;Zhao Y;Jiang L
通讯作者: Jiang L
DOI: 10.1016/j.gene.2014.10.024
发表时间: 2015-01-25
期刊: Gene
影响因子: 3.5
作者:
Gu SX;Li X;Hamilton JL;Chee A;Kc R;Chen D;An HS;Kim JS;Oh CD;Ma YZ;van Wijnen AJ;Im HJ
通讯作者: Im HJ
DOI: 10.1146/annurev-pathol-121808-102144
发表时间: 2010
期刊: Annual review of pathology
影响因子: --
作者:
Coppé JP;Desprez PY;Krtolica A;Campisi J
通讯作者: Campisi J
DOI: 10.1016/j.joca.2008.09.018
发表时间: 2009-05-01
影响因子: 7
作者:
Botter, S. M.;Glasson, S. S.;van Osch, G. J. V. M.
通讯作者: van Osch, G. J. V. M.