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Paraffin

Company: EMD Millipore
Catalog#: 107337
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Histochemical Staining of Collagen and Identification of Its Subtypes by Picrosirius Red Dye in Mouse Reproductive Tissues
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2017-11-05
[Abstract]  Collagen is one of the foremost components of tissue extracellular matrix (ECM). It provides strength, elasticity and architecture to the tissue enabling it to bear the wear and tear from external factors like physical stress as well as internal stress factors like inflammation or other pathological conditions. During normal pregnancy or pregnancy related pathological conditions like preterm premature rupture of membranes (PPROM), collagen of the fetal membrane undergoes dynamic remodeling defining biochemical properties of the fetal membrane. The protocol in this article describes the histochemical method to stain total collagen by Picrosirius red stain which is a simple, quick and reliable method. This protocol can be used on paraformaldehyde (PFA) and formaldehyde fixed paraffin ... [摘要]  胶原蛋白是组织细胞外基质(ECM)最重要的组成部分之一。它为组织提供了强度,弹性和构造,使其能承受来自外部因素的磨损,如身体压力以及炎症或其他病理状况等内部应激因素。在正常妊娠或与妊娠相关的病理状况如胎膜早破(PPROM)期间,胎膜的胶原经历动态重塑,定义胎膜的生化特性。本文中的方案描述了一种简单,快速,可靠的组织化学染色方法,用苦皮红染色法对总胶原进行染色。该协议可用于多聚甲醛(PFA)和甲醛固定石蜡包埋组织切片。我们进一步描述了胶原蛋白在不同的小鼠生殖组织中的染色和分布,并且还展示了这种技术如何与偏振显微镜组合用于检测不同亚型胶原蛋白的分布。

【背景】胶原蛋白是从皮肤到骨头的所有结缔组织中的主要负载聚合物。当施加机械力时,胶原蛋白网络强烈变硬,从而防止组织的过度变形。有16种胶原蛋白,其中I型,II型和III型胶原蛋白几乎占据了人体胶原蛋白的80%,这些胶原蛋白被挤在一起形成细长的原纤维。 IV型胶原蛋白形成二维网状结构;而其他几种胶原蛋白类型与原纤维型胶原蛋白相关,将它们彼此连接或连接到其他基质组分。这些胶原蛋白与细胞外基质(ECM)的其他成分一起经历不断的重塑以提供所需的生物化学性质如拉伸强度和弹性。这种胶原蛋白的独特属性是生殖组织稳定性的影响因素之一,其失调可能导致不良事件,例如胎盘异常,膜破裂(Hampson等人,1997; Marpaung, ...

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