Harvesting Methods of Umbilical Cord-derived Mesenchymal Stem Cells from Culture Modulate Cell Properties and Functions

Overview

Journal Regen Ther

Date 2024 Jun 6

PMID 38841206

Authors

Mitsuyoshi Nakao

Kenichi Nagase

Affiliations

Soon will be listed here.

Abstract

Introduction: Human umbilical cord-derived mesenchymal stem cells (UC-MSCs) are promising candidates for stem cell therapy. Various methods such as enzymatic treatment, cell scraping, and temperature reduction using temperature-responsive cell culture dishes have been employed to culture and harvest UC-MSCs. However, the effects of different harvesting methods on cell properties and functions remain unclear. In this study, we investigated the properties and functions of UC-MSC using various cell-harvesting methods.

Methods: UC-MSC suspensions were prepared using treatments with various enzymes, cell scraping, and temperature reduction in temperature-responsive cell culture dishes. UC-MSC sheets were prepared in a temperature-responsive cell culture dish. The properties and functions of the UC-MSC suspensions and sheets were assessed according to Annexin V staining, lactate dehydrogenase (LDH) assay, re-adhesion behavior, and cytokine secretion analysis via enzyme-linked immunosorbent assay.

Results: Annexin V staining revealed that accutase induced elevated UC-MSC apoptosis. Physical scraping using a cell scraper induced a relatively high LDH release due to damaged cell membranes. Dispase exhibited relatively low adhesion from initial incubation until 3 h. UC-MSC sheets exhibited rapid re-adhesion at 15 min and cell migration at 6 h. UC-MSC sheets expressed higher levels of cytokines such as HGF, TGF-β1, IL-10, and IL-6 than did UC-MSCs in suspension.

Conclusions: The choice of enzyme and physical scraping methods for harvesting UC-MSCs significantly influenced their activity and function. Thus, selecting appropriate cell-harvesting methods is important for successful stem cell therapy.

Citing Articles

Temperature-modulated interactions between thermoresponsive strong cationic copolymer-brush-grafted silica beads and biomolecules.

Nagase K, Suzuki S, Kanazawa H Heliyon. 2024; 10(15):e34668.

PMID: 39161811 PMC: 11332852. DOI: 10.1016/j.heliyon.2024.e34668.

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