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猪最初的发育阶段会影响肠道有机体的生长,但不会影响细胞组成

Camille Duchesne^1,2, Gwénaëlle Randuineau¹, Laurence Le Normand¹

¹Institut Numecan, INRAE, INSERM, Univ Rennes, Rennes, France.

Animal models and experimental medicine

|December 15, 2024

概括

小猪的年龄会影响肠道有机体的生长和形态,但不会影响它们的细胞表型. 这项研究对于完善生物医学研究中的有机体模型至关重要.

科学领域:

动物模型动物模型
干细胞生物学干细胞生物学
胃肠病学胃肠病学

背景情况:

肠道有机体为动物试验提供了一个有希望的替代品.
描述肠干细胞 (ISC) 起源对有机体表型的影响对于它们的常规应用至关重要.
这项研究研究了供体年龄对猪肠道有机体特征的影响.

研究的目的:

评估肠道干细胞供体年龄对猪肠道有机体的生长,形态和细胞组成的影响.
了解与年龄相关的ISC变化如何影响有机体的发育和特征.

主要方法:

从1岁,7岁28岁36岁和180天的猪的头和结肠ISC中建立了器官.
机器人经历了三次通过,以评估长期培养效应.
分析了基因表达 (qPCR) 和细胞类型组成 (免疫染).

主要成果:

肠道位置显著影响了有机体的生长和形态,结肠ISC产生了更多和更大的有机体.
小猪年龄影响了有机体发育:较年轻的猪ISC导致了更高的有机体与球体的比率和经过后改变的球体/有机体大小.
虽然捐赠者的年龄影响了生长和形态,但有机体的细胞组成 (吸收性,肠内分泌,杯细胞) 在7天和180天的捐赠者之间保持一致,尽管观察到特定地点的差异.

结论:

捐赠者的年龄是影响肠道有机体生长动态和形态表现的关键因素.
尽管年龄对生长和形态有影响,但有机体的基本细胞表型仍然存在.
这些发现有助于猪肠器官在研究中的标准化和可靠使用,支持减少动物实验.

关键词:

结肠形体是什么意思发展发展发展发展发展.这种类型的体是体.有机物类的表型是有机物类的表型.小猪小猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪猪

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