期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/ijms222312690
关键词
tissue engineering; spheroids; organoids; scaffold-based; scaffold-free; ECM; hydrogel
ECM in tissue engineering plays a crucial role, with scaffold-based and scaffold-free techniques each having their own advantages and limitations. Scaffold-free techniques are suitable for high-throughput cell aggregates preparation, while scaffold-based techniques are more suitable for modeling organotypic models that mimic the native ECM.
The extracellular matrix (ECM) has pleiotropic effects, ranging from cell adhesion to cell survival. In tissue engineering, the use of ECM and ECM-like scaffolds has separated the field into two distinct areas-scaffold-based and scaffold-free. Scaffold-free techniques are used in creating reproducible cell aggregates which have massive potential for high-throughput, reproducible drug screening and disease modeling. Though, the lack of ECM prevents certain cells from surviving and proliferating. Thus, tissue engineers use scaffolds to mimic the native ECM and produce organotypic models which show more reliability in disease modeling. However, scaffold-based techniques come at a trade-off of reproducibility and throughput. To bridge the tissue engineering dichotomy, we posit that finding novel ways to incorporate the ECM in scaffold-free cultures can synergize these two disparate techniques.
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