Costa Joana, Ahluwalia Arti
Research Center "E. Piaggio" and Department of Information Engineering, University of Pisa, Pisa, Italy.
Front Bioeng Biotechnol. 2019 Jun 18;7:144. doi: 10.3389/fbioe.2019.00144. eCollection 2019.
The physiological environment of the intestine is characterized by its variegated composition, numerous functions and unique dynamic conditions, making it challenging to recreate the organ . This review outlines the requirements for engineering physiologically relevant intestinal models, mainly focusing on the importance of the mechano-structural cues that are often neglected in classic cell culture systems. More precisely: the topography, motility and flow present in the intestinal epithelium. After defining quantitative descriptors for these features, we describe the current state of the art, citing relevant approaches used to address one (or more) of the elements in question, pursuing a progressive conceptual construction of an "ideal" biomimetic intestinal model. The review concludes with a critical assessment of the currently available methods to summarize the important features of the intestinal tissue in the light of their different applications.
肠道的生理环境具有成分多样、功能众多和独特动态条件的特点,这使得重建该器官具有挑战性。本综述概述了构建与生理相关的肠道模型的要求,主要关注经典细胞培养系统中常被忽视的机械结构线索的重要性。更确切地说:肠道上皮中的地形、运动性和流动。在为这些特征定义了定量描述符之后,我们描述了当前的技术水平,引用了用于解决上述一个(或多个)要素的相关方法,追求逐步构建一个 “理想” 的仿生肠道模型。综述最后对目前可用的方法进行了批判性评估,以便根据其不同应用总结肠道组织的重要特征。