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Biological and proteomic characterization of a composite mesh for abdominal wall hernia treatment: Reference Study

机译:腹壁疝气治疗复合网的生物和蛋白质重表征:参考研究

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ABSTRACT Aims The industrial development of a product requires performing a deep analysis to highlight its characteristics useful for future design. The clinical use of a product stimulates knowledge improvement about it in a constant effort of progress. This work shows the biological characterization of CMC composite mesh. CMC polypropylene prosthesis was seeded with Human fibroblast BJ. Samples (cells and medium) were collected at different time points in order to perform different analysis: inflammatory markers quantification; collagens immunohistochemistry; matrix metalloproteinases zimography; extracellular matrix proteomic profile. Findings: CMC presented a good cell viability rate and cell growth during the 21 days. The inflammatory profile showed an initial secretion of anti‐inflammatory IL‐10 and a final increase of pro‐inflammatory IL‐6. Immunocytochemistry highlighted a similar Collagen type I/type III ratio. The proteomic analysis evidenced the ECM protein content profile composed, mainly, by collagens, fibronectin, laminin. MMPs resulted both expressed when in contact to mesh. Conclusions: CMC shows a good cell biocompatibility and growth. The increase of pro‐inflammatory markers could stimulate proliferation, influencing the integration process in human body. Proteomics highlights the ECM modulation by CMC. An integrated investigation of these biological analyses with mechanical data should improve the design process of a new product. ? 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 2045–2052, 2017.
机译:摘要旨在产品的工业开发需要进行深度分析,以突出其对未来设计有用的特性。产品的临床用途在不断的进展中刺激了它的知识改进。这项工作显示了CMC复合网格的生物学特征。 CMC聚丙烯假体用人成纤维细胞BJ接种。在不同的时间点收集样品(细胞和培养基)以进行不同的分析:炎症标记量化;胶原蛋白免疫组化;基质金属蛋白酶zimography;细胞外基质蛋白质组学轮廓。结果:在21天内,CMC呈现出良好的细胞活力和细胞生长。炎症性曲线显示出抗炎IL-10的初始分泌和促炎IL-6的最终增加。免疫细胞化学突出了类似的胶原I / III型比率。蛋白质组学分析证明了ECM蛋白质含量概况,主要由胶原蛋白,纤维素,层粘连蛋白组成。 MMPS在与网格接触时表达两者。结论:CMC显示出良好的细胞生物相容性和生长。促炎标志物的增加可以刺激增殖,影响人体中的整合过程。蛋白质组学突出了CMC的ECM调制。通过机械数据的这些生物学分析的综合调查应改善新产品的设计过程。还2016 Wiley期刊,Inc.J生物保解率A件B:苹果生物摩特,105B:2045-2052,2017。

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