Deficiency of periostin impairs liver regeneration in mice after partial hepatectomy.

Deficiency of periostin impairs liver regeneration in mice after partial hepatectomy.
复制标题

骨膜素缺乏会损害部分肝切除术后小鼠的肝再生。

DOI:
10.1016/j.matbio.2017.09.004
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发表时间:
2017-09
期刊:
影响因子:
6.9
通讯作者:
Ouyang Gaoliang
Ouyang Gaoliang
中科院分区:
生物学1区
文献类型:
--
作者:
Wu Tiantian;Huang Jingwen;Wu Shasha;Huang Zhengjie;Chen Xiaoyan;Liu Yingfu;Cui Dan;Song Gang;Luo Qi;Liu Fan;Ouyang Gaoliang

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Periostin(Postn)是一种重要的细胞外重塑因子,参与肝脏炎症、纤维化、非酒精性脂肪肝和肝癌的发病机制。然而,Postn在肝再生中的作用仍不清楚。在这里,我们证明了PostnmRNA和蛋白水平在2/3部分肝切除术(PHx)后的小鼠中显著上调。与野生型小鼠相比,Postn缺陷型小鼠在PHx后第2、8和14天表现出较低的肝/体重比和较少的Ki 67阳性细胞。与野生型小鼠相比,PHx后1天Postn基因缺陷小鼠肝脏中的巨噬细胞浸润和TNF-α、IL-6和HGF水平显著降低。此外,Postn的过表达导致小鼠肝脏中更高的肝/体重比和更多的Ki 67阳性细胞,并促进体外肝细胞增殖。此外,肝窦内皮细胞、胆管上皮细胞和肝细胞在PHx后可以表达Postn,并且Postn缺陷损害肝再生过程中的血管生成。我们的研究结果表明,Postn缺陷损害PHx后小鼠的肝再生,Postn可能是一种新的肝再生促进剂。
Periostin (Postn) is a crucial extracellular remodeling factor that has been implicated in the pathogenesis of hepatic inflammation, fibrosis, non-alcoholic fatty liver disease and liver cancer. However, the role of Postn in liver regeneration remains unclear. Here, we demonstrate thatPostnmRNA and protein levels are significantly upregulated in the mice after 2/3 partial hepatectomy (PHx). Compared with wild-type mice,Postn-deficient mice exhibit lower liver/body weight ratio and less Ki67-positive cells at days 2, 8 and 14 after PHx. Macrophage infiltration and the levels ofTNF-α,IL-6and HGF in the livers ofPostn-deficient mice are significantly decreased compared with wild-type mice one day after PHx. In addition, overexpression of Postn leads to higher liver/body weight ratio and more Ki67-positive cells in the livers of mice and promotes hepatocyte proliferation in vitro. Moreover, liver sinusoidal endothelial cells, biliary epithelial cells and hepatocytes can express Postn after PHx, and Postn deficiency impairs angiogenesis during liver regeneration. Our findings indicate that Postn deficiency impairs liver regeneration in mice after PHx and Postn might be a novel promoter for liver regeneration.
DOI: 10.1016/j.matbio.2016.01.006
发表时间: 2016-05
期刊: Matrix biology : journal of the International Society for Matrix Biology
影响因子: --
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发表时间: 2020-01
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发表时间: 2000-01-01
影响因子: 25.7
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Fausto, N
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