首页> 外文期刊>Life sciences >The roles of bone morphogenetic protein (BMP) 12 in stimulating the proliferation and matrix production of human patellar tendon fibroblasts.
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The roles of bone morphogenetic protein (BMP) 12 in stimulating the proliferation and matrix production of human patellar tendon fibroblasts.

机译:骨形态发生蛋白(BMP)12在刺激人pa肌腱成纤维细胞增殖和基质产生中的作用。

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摘要

Recombinant human (rh) bone morphogenetic protein 12 (BMP12) is proved to induce the formation of tendon and ligament tissues in animal experiments. But the roles of BMP12 on tissue regeneration in human tendons remain unexplored. In the present study, healthy human patellar tendon samples were collected for histological examination and preparation of tendon fibroblast culture. Immunohistochemical staining showed that BMP12 was detected on healthy patellar tendon samples, only located on active tenoblasts and perivascular mesenchymal cells but not in interstitial tenocytes. The expression of PCNA and procollagen type I also exhibited a similar distribution. It indicates that BMP12 may be involved in matrix remodeling process in adult tissues. In vitro studies showed that rhBMP12 could increase proliferation of tendon fibroblasts and increase the gene expression of procollagen type I and type III, but decrease the gene expression of decorin in tendon fibroblasts culture. Our findings suggest that BMP12 may play a role in early phases of tissue regeneration in tendons.
机译:在动物实验中,重组人(rh)骨形态发生蛋白12(BMP12)可以诱导肌腱和韧带组织的形成。但是,尚未探索BMP12在人肌腱组织再生中的作用。在本研究中,收集健康的人类pa骨肌腱样本用于组织学检查和肌腱成纤维细胞培养的制备。免疫组织化学染色显示,在健康的healthy腱样本中检测到BMP12,仅位于活跃的成腱细胞和血管周间充质细胞上,而在间质腱细胞中则未检测到。 PCNA和前胶原I的表达也表现出相似的分布。这表明BMP12可能参与成人组织的基质重塑过程。体外研究表明,rhBMP12可以增加肌腱成纤维细胞的增殖,并增加Ⅰ型和Ⅲ型胶原原蛋白的基因表达,但在肌腱成纤维细胞培养中降低核心蛋白聚糖的基因表达。我们的发现表明,BMP12可能在肌腱组织再生的早期阶段起作用。

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