发布: 2018年05月20日第8卷第10期 DOI: 10.21769/BioProtoc.2849 浏览次数: 5630
评审: Vivien Jane Coulson-ThomasDongsheng JiangAnonymous reviewer(s)
Abstract
The goal of this protocol is to establish a procedure for cultivating stem cells on a fibrin carrier to allow for eventual transplantation to the eye. The ability to transfer stem cells to a patient is critical for treatment for a variety of disorders and wound repair. We took hair follicle stem cells from the vibrissae of transgenic mice expressing a dual reporter gene under the control of the Tet-on system and the keratin 12 promoter (Meyer-Blazejewska et al., 2011). A clonal growth assay was performed to enrich for stem cells. Once holoclones formed they were transferred onto a fibrin carrier and cultivated to obtain a confluent epithelial cell layer. Limbal stem cell deficient (LSCD) mice were used as the transplant recipient in order to test for successful grafting and eventual differentiation into a corneal epithelial phenotype.
Keywords: Holoclones (全克隆)Background
Stem cells are widely used as a therapeutic tool, thus a means for delivery is essential. In fact, many researchers and companies are searching for the best way to deliver cells into the human body to optimize cell survival as well as integration into the host tissue. Injection methods have been widely used in animal models but often result in poor survival and integration. Techniques utilizing biomaterials and surgical devices are currently being employed. One technique that has been utilized to deliver stem cells is fibrin carriers. Fibrin gel is a degradable biopolymer that can adhere to native tissue allowing for cell attachment, migration and proliferation (Ehrbar et al., 2005). Fibrin gels have many advantages including biocompatibility, controlled degradation (Kjaergard et al., 1994; Sidelmann et al., 2000), uniform cell distribution and high cell seeding efficiency (Swartz et al., 2005). Fibrin gels have been utilized for treating skin burns (Pellegrini et al., 1999; Ronfard et al., 2000), junctional epidermolysis bullosa (Hirsch et al., 2017) and corneal damage (Pellegrini et al., 1997; Rama et al., 2010). The method described here uses a fibrin carrier to transplant hair follicle derived stem cells onto the ocular surface of a limbal stem cell-deficient mouse. Cell engraftment and differentiation was assessed for a 5-week period via fluorescent microscopy.
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版权信息
© 2018 The Authors; exclusive licensee Bio-protocol LLC.
如何引用
Call, M., Meyer, E. A., Kao, W. W., Kruse, F. E. and Schloetzer-Schredhardt, U. (2018). Murine Hair Follicle Derived Stem Cell Transplantation onto the Cornea Using a Fibrin Carrier. Bio-protocol 8(10): e2849. DOI: 10.21769/BioProtoc.2849.
分类
干细胞 > 成体干细胞 > 上皮干细胞
干细胞 > 成体干细胞 > 细胞移植
细胞生物学 > 细胞移植 > 同种异体移植
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