作者
Richard Jeske, Chang Liu, Leanne Duke, Maria L Canonicco Castro, Laureana Muok, Peggy Arthur, Mandip Singh, Sunghoon Jung, Li Sun, Yan Li
发表日期
2023/7/1
期刊
Bioactive Materials
卷号
25
页码范围
732-747
出版商
Elsevier
简介
Human mesenchymal stromal cells (hMSCs) are mechanically sensitive undergoing phenotypic alterations when subjected to shear stress, cell aggregation, and substrate changes encountered in 3D dynamic bioreactor cultures. However, little is known about how bioreactor microenvironment affects the secretion and cargo profiles of hMSC-derived extracellular vesicles (EVs) including the subset, “exosomes”, which contain therapeutic proteins, nucleic acids, and lipids from the parent cells. In this study, bone marrow–derived hMSCs were expanded on 3D Synthemax II microcarriers in the PBS mini 0.1L Vertical-Wheel bioreactor system under variable shear stress levels at 25, 40, and 64 RPM (0.1–0.3 dyn/cm2). The bioreactor system promotes EV secretion from hMSCs by 2.5-fold and upregulates the expression of EV biogenesis markers and glycolysis genes compared to the static 2D culture. The microRNA …
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R Jeske, C Liu, L Duke, MLC Castro, L Muok, P Arthur… - Bioactive Materials, 2023