Leukemia inhibitory factor treatment attenuates the detrimental effects of glucocorticoids on bone in mice.

Leukemia inhibitory factor treatment attenuates the detrimental effects of glucocorticoids on bone in mice.
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白血病抑制因子治疗减轻糖皮质激素对小鼠骨骼的有害影响

DOI:
10.1016/j.bone.2021.115843
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发表时间:
2021
期刊:
影响因子:
4.1
通讯作者:
Tuckermann
Tuckermann
中科院分区:
医学2区
文献类型:
--
作者:
Tuckermann

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糖皮质激素(GC)是广泛用于治疗炎症和自身免疫性疾病的药物。然而,长期GC治疗引起的严重副作用是骨质疏松症。白血病抑制因子(LIF)-糖蛋白130(gp 130)依赖性细胞因子和白细胞介素-6细胞因子家族的成员-是激活蛋白1(AP-1)的靶基因,可能参与GC诱导的骨丢失的机制之一。事实上,我们以前报道过LIF的mRNA表达水平在成骨分化后增强,但在GC处理的成骨细胞中显著降低。在这项研究中,我们发现体外LIF治疗挽救了GC处理的成骨细胞的早期成骨分化和矿化的下降。此外,我们还证明了体内LIF治疗通过减少骨小梁形成和成骨细胞数量的损失来防止GC介导的骨小梁丢失。这种保护似乎是由LIF拯救GC降低的Stat 3、MAPK和Akt信号通路的活性所赋予的。因此,特异性靶向LIF信号传导可能代表了一种新的治疗策略,以防止GC诱导的骨小梁丢失。
Glucocorticoids (GCs) are widely used drugs for the treatment of inflammatory and autoimmune diseases. However, a severe side effect induced by long-term GC therapy is osteoporosis. Leukemia inhibitory factor (LIF) – a glycoprotein 130 (gp130) dependent cytokine and member of the interleukin-6 cytokine family – is an activator protein 1 (AP-1) target gene that may be involved in one of the mechanisms underlying GC-induced bone loss. Indeed, we previously reported that the mRNA expression level of LIF was enhanced upon osteogenic differentiation, but was significantly decreased in GC-treated osteoblasts. In this study, we show thatin vitroLIF treatment rescues the decreased early osteogenic differentiation and mineralization of GC-treated osteoblasts. Furthermore, we also demonstrate thatin vivoLIF treatment protects against GC-mediated trabecular bone loss by decreasing the loss of both trabecular bone formation and osteoblast numbers. This protection appears to be conferred by LIF rescuing GC decreased activity of Stat3, MAPK, and Akt signaling pathways. Thus, the specific targeting of LIF signaling may represent a new therapeutic strategy to prevent GC-induced trabecular bone loss.
编码鼠髓系白血病抑制因子 (LIF) 的 cDNA 的分子克隆和表达。
DOI: --
发表时间: 1987
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白血病抑制因子对成骨细胞分化的双相作用*
DOI: --
发表时间: 2001
期刊: Journal of cellular biochemistry. Supplement
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DOI: 10.1016/j.bone.2011.04.020
发表时间: 2011-09-01
期刊: BONE
影响因子: 4.1
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