基于骨髓间充质干细胞再造功能性肝样组织的脱细胞脾基质。

IF 1.6 4区 生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
Organogenesis Pub Date : 2016-07-02 Epub Date: 2016-05-09 DOI:10.1080/15476278.2016.1185584
Junxi Xiang, Xinglong Zheng, Peng Liu, Lifei Yang, Dinghui Dong, Wanquan Wu, Xuemin Liu, Jianhui Li, Yi Lv
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引用次数: 20

摘要

背景与目的:去细胞化肝基质(Decellularized liver matrix, DLM)在重建肝样组织(HLT)方面具有巨大的潜力,但肝脏供体的短缺仍然是其潜在应用的障碍。因此,需要一种合适的替代支架来扩大供体池。在本研究中,我们探讨了脱细胞脾基质(DSM)培养骨髓间充质干细胞(BMSCs)并促进肝样细胞分化的有效性。方法:取大鼠脾经冻融灌注制备DSM。然后将大鼠骨髓间充质干细胞重新植入DSM中进行动态培养,并按照确定的诱导方案进行肝分化。结果:研究发现,DSM保留了三维多孔结构,具有与DLM相似的天然细胞外基质和血管网络。DSM中重新植入的骨髓间充质干细胞分化为功能性肝细胞样细胞,表现为细胞形态学改变、肝相关基因和蛋白标志物的表达、糖原储存和吲哚菁绿摄取。同种分化期,DSM组白蛋白产量(2.74±0.42 vs 2.07±0.28 pg/ cells /day)和尿素浓度(75.92±15.64 vs 52.07±11.46 pg/ cells /day)显著高于组织培养瓶(TCF)组,P< 0.05。结论:本研究表明,DSM在肝样组织的制造中具有相当大的潜力,特别是因为它可以促进骨髓间充质干细胞的肝分化,并表现出更高水平和更稳定的功能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Decellularized spleen matrix for reengineering functional hepatic-like tissue based on bone marrow mesenchymal stem cells.

Decellularized spleen matrix for reengineering functional hepatic-like tissue based on bone marrow mesenchymal stem cells.

Decellularized spleen matrix for reengineering functional hepatic-like tissue based on bone marrow mesenchymal stem cells.

Decellularized spleen matrix for reengineering functional hepatic-like tissue based on bone marrow mesenchymal stem cells.

Background and aims: Decellularized liver matrix (DLM) hold great potential for reconstructing functional hepatic-like tissue (HLT) based on reseeding of hepatocytes or stem cells, but the shortage of liver donors is still an obstacle for potential application. Therefore, an appropriate alternative scaffold is needed to expand the donor pool. In this study, we explored the effectiveness of decellularized spleen matrix (DSM) for culturing of bone marrow mesenchymal stem cells (BMSCs), and promoting differentiation into hepatic-like cells.

Methods: Rats' spleen were harvested for DSM preparation by freezing/thawing and perfusion procedure. Then the mesenchymal stem cells derived from rat bone marrow were reseeded into DSM for dynamic culture and hepatic differentiation by a defined induction protocol.

Results: The research found that DSM preserved a 3-dimensional porous architecture, with native extracellular matrix and vascular network which was similar to DLM. The reseeded BMSCs in DSM differentiated into functional hepatocyte-like cells, evidenced by cytomorphology change, expression of hepatic-associated genes and protein markers, glycogen storage, and indocyanine green uptake. The albumin production (2.74±0.42 vs. 2.07±0.28 pg/cell/day) and urea concentration (75.92±15.64 vs. 52.07±11.46 pg/cell/day) in DSM group were remarkably higher than tissue culture flasks (TCF) group over the same differentiation period, P< 0.05.

Conclusion: This present study demonstrated that DSM might have considerable potential in fabricating hepatic-like tissue, particularly because it can facilitate hepatic differentiation of BMSCs which exhibited higher level and more stable functions.

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来源期刊
Organogenesis
Organogenesis BIOCHEMISTRY & MOLECULAR BIOLOGY-DEVELOPMENTAL BIOLOGY
CiteScore
4.10
自引率
4.30%
发文量
6
审稿时长
>12 weeks
期刊介绍: Organogenesis is a peer-reviewed journal, available in print and online, that publishes significant advances on all aspects of organ development. The journal covers organogenesis in all multi-cellular organisms and also includes research into tissue engineering, artificial organs and organ substitutes. The overriding criteria for publication in Organogenesis are originality, scientific merit and general interest. The audience of the journal consists primarily of researchers and advanced students of anatomy, developmental biology and tissue engineering. The emphasis of the journal is on experimental papers (full-length and brief communications), but it will also publish reviews, hypotheses and commentaries. The Editors encourage the submission of addenda, which are essentially auto-commentaries on significant research recently published elsewhere with additional insights, new interpretations or speculations on a relevant topic. If you have interesting data or an original hypothesis about organ development or artificial organs, please send a pre-submission inquiry to the Editor-in-Chief. You will normally receive a reply within days. All manuscripts will be subjected to peer review, and accepted manuscripts will be posted to the electronic site of the journal immediately and will appear in print at the earliest opportunity thereafter.
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