流体动力学生成的多层皮肤球体能够进行生物活性成分的体外筛选和毒性测试。

Hydrodynamically generated multilayer skin spheroids enable in vitro screening of biologically active ingredients and toxicity tests.

作者信息

Chen Zhengkun, Kalhori Dianoosh, Rakhshani Faeze, El Baraka Oussama, Qu Liangliang, Kolle Susanne N, Andre Valerie, Deisenroth Ted, Kumacheva Eugenia

机构信息

Department of Chemistry, University of Toronto, Toronto, ON, Canada.

BASF Beauty Care Solutions France S.A.S, Lyon, France.

出版信息

Sci Adv. 2025 May 9;11(19):eadu1251. doi: 10.1126/sciadv.adu1251. Epub 2025 May 7.

Abstract

Human tissues often have a multilayer structure, with each layer performing a distinct physiological task. Reconstructing layered tissue structures with their respective functions is crucial for disease modeling, screening biologically active ingredients, and performing toxicology tests; however, multicellular spheroids used for these purposes generally lack a well-defined multilayer architecture. Here, to recapitulate a multilayer structure of the skin, we developed a hydrodynamically mediated approach to the generation of large arrays of fibroblast spheroids (a dermal core) that were engulfed with an epidermal layer of keratinocytes. These spheroids expressed biomarkers of the epidermis, epidermal-dermal junction, and dermis, and exhibited skin-like barrier properties. Screening of the synergistic effect of vitamins and peptides on protein synthesis by the spheroids and evaluation of skin toxicity with chemical agents showed a correlation with clinical results or existing standards. This approach offers enhanced control over spatial cell distribution in spheroids for advanced in vitro models of multilayer tissues.

摘要

人体组织通常具有多层结构,每层执行不同的生理任务。重建具有各自功能的分层组织结构对于疾病建模、筛选生物活性成分以及进行毒理学测试至关重要;然而,用于这些目的的多细胞球体通常缺乏明确的多层结构。在这里,为了重现皮肤的多层结构,我们开发了一种流体动力学介导的方法来生成大量被角质形成细胞表皮层包裹的成纤维细胞球体(真皮核心)。这些球体表达了表皮、表皮-真皮交界处和真皮的生物标志物,并表现出类似皮肤的屏障特性。对维生素和肽对球体蛋白质合成的协同作用进行筛选以及用化学试剂评估皮肤毒性,结果与临床结果或现有标准相关。这种方法为多层组织的先进体外模型提供了对球体中空间细胞分布的更强控制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1282/12057684/ff08059b1d83/sciadv.adu1251-f1.jpg

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