{{'Search' | translate}}
 

Vortexer

Company: Fisherbrand
Catalog#: 15212985
Bio-protocol()
Company-protocol()
Other protocol()

Multilayered Fabrication Assembly Technique to Engineer a Corneal Stromal Equivalent
Author:
Date:
2021-03-20
[Abstract]  

Tissue engineering has emerged as a strategy to combat the donor shortage of human corneas for transplantation. Synthetic corneal substitutes are currently unable to support the normal phenotype of human cells and so decellularized animal corneas have been deployed to more closely provide the topographical and biochemical cues to promote cell attachment and function. Although full thickness decellularized corneas can support corneal cells, the cells are slow to populate the scaffold and density declines from the surface. To avoid these problems, this protocol describes the stacking of alternate layers of decellularized porcine corneal sheets and cell-laden collagen hydrogel to produce a corneal construct. The sheets are obtained by cryosectioning porcine corneas, decellularizing them with

...
[摘要]  [摘要]组织工程学已成为一种解决人类角膜移植供体短缺的策略。合成的角膜替代物目前不能支持人类细胞的正常表型,因此已经使用脱细胞的动物角膜来更紧密地提供地形和生化线索以促进细胞附着和功能。尽管全厚度的脱细胞角膜可以支持角膜细胞,但这些细胞填充支架的速度很慢,并且密度从表面降低。为了避免这些问题,该协议描述了脱细胞层的交替层的堆叠 猪角膜片和载有细胞的胶原蛋白水凝胶可产生角膜构建体。通过将猪角膜冷冻切片,用去污剂和核酸酶使它们脱细胞,最后进行空气干燥以储存和易于制造,从而获得了薄片。然后将角膜基质细胞封装在I型胶原溶液中,并在这些薄片之间进行浇铸。该协议提出了一种快速的方法,以确保仅使用组织来源的材料即可在整个构建体中获得高细胞度。


图形摘要:


获得角膜基质等效物的主要过程概述


[背景]角膜失明影响着全球数百万人,治疗主要依赖于人类供体角膜的移植(Gain等人,2016)。由于这些捐赠是稀缺的,因此需要基于生物材料的组织工程学的替代方案。正在开发各种各样的策略和材料来工程化角膜组织,一种有前途的方法是使用脱细胞的动物角膜(Fernández- Pérez和Ahearne ...

Comments