https://scholars.lib.ntu.edu.tw/handle/123456789/592099
標題: | Scalable production of controllable dermal papilla spheroids on PVA surfaces and the effects of spheroid size on hair follicle regeneration | 作者: | Huang, Yi-Ching CHIH-CHIEH CHAN Lin, Wei-Ting HSIEN-YI CHIU Tsai, Ren-Yeu Tsai, Tsung-Hua Chan, Jung-Yi SUNG-JAN LIN |
公開日期: | 2013 | 卷: | 34 | 期: | 2 | 起(迄)頁: | 442-451 | 來源出版物: | Biomaterials | 摘要: | Organ size and numbers are vital issues in bioengineering for hair follicle (HF) regeneration. Murine HF dermal papilla (DP) cells are able to induce HF neogenesis when transplanted as aggregates. However, how the preparation of murine and human DP aggregates affects HF inductivity and the size of regenerated HF is yet to be determined. Here we report a scalable method for production of controllable human and rat DP spheroids in general labs for reproducible experiments. Compared with more hydrophobic polyethylene and poly(ethylene-co-vinyl alcohol), DP cells are poorly adhesive to hydrophilic polyvinyl alcohol (PVA). Seeded in PVA-coated 96-welled commercial PCR tube arrays, DP cells quickly aggregate into single spheroids with progressive compaction. Varying seeded cell numbers and culture periods enables us to control the size and cell number of the spheroids. The spheroids obtained have high viability and preserve DP characters. A proof of principle experiment was conducted to examine the size effect on the efficiency and efficacy of HF regeneration. We found that both human and rat DP spheroids are able to induce HF neogenesis and larger DP spheroids exhibit higher HF inductivity. However, the average diameter of regenerated hair fiber did not significantly change with the increasing size of transplanted DP spheroids. The result suggests that an appropriate size of DP spheroid is essential for HF inductivity, but its size cannot be directly translated to a thicker regenerated hair. Our results also have implications on the efficiency and efficacy in the regeneration of other epithelial organs. © 2012 Elsevier Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868208077&doi=10.1016%2fj.biomaterials.2012.09.083&partnerID=40&md5=8826684e673ac9377b4b7a282ee03f6c https://scholars.lib.ntu.edu.tw/handle/123456789/592099 |
ISSN: | 0142-9612 | DOI: | 10.1016/j.biomaterials.2012.09.083 |
顯示於: | 醫學系 |
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