Reference - Detail
| RRC ID | 85779 |
|---|---|
| Author | Sakai S, Fujiwara H, Kazama R, Toita R, Fujita S. |
| Title | Development of on-chip cell domes using Ca-alginate hydrogel shells for non-adherent cell studies. |
| Journal | Lab Chip |
| Abstract |
Cell domes are hemispherical microstructures comprising hydrogel shells that enclose cells within their cavities. They are approximately 500 and 300 μm in radius and height, respectively. Multiple domes can be fabricated in an array on a single glass plate to facilitate optical observations and provide a localised and stable environment for non-adherent cell studies. However, current limitations, such as cytotoxicity, reduced cell viability and complex fabrication strategies, hinder their advancements. Thus, we address these limitations by proposing a cell dome system based on calcium ion (Ca2+)-crosslinked alginate hydrogel shells anchored to glass plates. The fabrication process was significantly streamlined and improved compared to previously reported enzyme-mediated methods, rendering it more accessible for biomedical applications. The resulting cell domes exhibited excellent adhesion stability to glass plates, maintaining an adhesion rate of >90% following 168 h of incubation under cell culture conditions. Enclosed K562 cells, which represent a non-adherent erythroleukemia cell line, exhibited consistent viability (>95%) and a 14-fold increase in cell proliferation over 72 h. The hydrogel shell enabled reagents, such as calcein-AM and ethidium homodimer-1, to enter the dome from the external environment. In addition, reagents could be transferred to the enclosed cells from within the dome by pre-depositing them onto the glass prior to dome preparation. Our proposed Ca-alginate cell dome broadens the application of cell domes as a scalable and versatile platform for high-throughput drug screening and cellular analysis, offering precise control over non-adherent cell studies. |
| Volume | 25(16) |
| Pages | 3971-3978 |
| Published | 2025-8-5 |
| DOI | 10.1039/d5lc00204d |
| PMID | 40439046 |
| MeSH | Alginates* / chemistry Calcium* / chemistry Cell Adhesion Cell Culture Techniques / instrumentation Cell Proliferation Cell Survival Glucuronic Acid / chemistry Hexuronic Acids / chemistry Humans Hydrogels* / chemistry K562 Cells Lab-On-A-Chip Devices* |
| IF | 6.774 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | Peer-review(Publons) |
| Total number of mentions | 5 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Human and Animal Cells | K562(RCB0027) |