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首页> 外文期刊>Veterinary Dermatology >Equine lumican (LUM) cDNA sequence and spatio-temporal expression in an experimental model of normal and pathological wound healing
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Equine lumican (LUM) cDNA sequence and spatio-temporal expression in an experimental model of normal and pathological wound healing

机译:正常和病理性伤口愈合实验模型中的马鞭毛虫(LUM)cDNA序列和时空表达

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摘要

The development of exuberant granulation tissue, a situation that in some ways resembles the human keloid, compromises both the aesthetic and functional outcomes of wound repair in horses. To help elucidate the underlying molecular mechanisms the spatio-temporal expression of lumican (LUM) mRNA and protein for their potential contributions to tissue remodelling of body and limb wounds, was examined in an established experimental model. Expression was studied in intact skin and in samples of 1-, 2-, 3-, 4- and 6-week-old wounds of the body and forelimb. Temporal gene expression was determined by reverse transcriptase polymerase chain reaction, and protein expression was mapped immunohistochemically. A significant increase in LUM mRNA expression was observed in response to wounding at both anatomical locations, and a significantly higher mRNA level was recorded in thoracic than in limb wounds at weeks 1, 3 and 6 of repair. The immunohistochemical observations partially corroborated the mRNA data. To the authors' knowledge this study is the first to document that the cDNA for LUM is expressed over the different phases of wound repair in horses and suggests that LUM might be involved in both inflammation and remodelling in response to dermal injury. Further studies are now required to verify and quantify the temporal expression of this protein to provide the basis for targeted therapies that might prevent the development of exuberant granulation tissue in horse wound repair.
机译:旺盛的肉芽组织的发展,在某种程度上类似于人瘢痕loid,损害了马匹伤口修复的美学和功能效果。为了帮助阐明潜在的分子机制,在已建立的实验模型中检查了Lumican(LUM)mRNA和蛋白在时空表达中对身体和肢体伤口组织重构的潜在贡献。研究了在完整皮肤以及1、2、3、4和6周龄的身体和前肢伤口样本中的表达。通过逆转录酶聚合酶链反应确定时间基因表达,并通过免疫组织化学方法定位蛋白质表达。观察到在两个解剖位置的伤口均响应LUM mRNA表达的显着增加,并且在修复的第1、3和6周,胸部的mRNA水平显着高于肢体伤口。免疫组织化学观察部分证实了mRNA数据。据作者所知,该研究是第一个证明LUM的cDNA在马伤口修复的不同阶段表达的研究,并表明LUM可能参与皮肤损伤反应的炎症和重塑。现在需要进一步的研究来验证和定量这种蛋白的时间表达,为可能阻止马伤口修复中旺盛的肉芽组织发展的靶向疗法提供基础。

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