无血清培养人胚胎干细胞的体系研究与进展
Advances in serum-free culture systems of human embryonic stem cells
摘要 背景:人胚胎干细胞有永久自我更新和向外、中和内胚层分化的能力,具有重要的基础研究价值和临床应用前景,可应用于再生医学、药物毒性筛选、早期胚胎发育、细胞移植治疗和基因治疗等领域,但是在限定条件下的大规模细胞培养、控制和定向分化技术的发展仍然具有实质性的挑战。在治疗应用方面,许多研究者试图建立可在无异源限定性和规模化培养体系中维持细胞多能性的培养方法。目的:综述近几年报道的人胚胎干细胞的无血清培养体系研究进展,重点是在发展适于治疗用途的无血清和无异源培养体系进程中,面临的挑战和进步。方法:应用计算机检索CNKI和PubMed学术数据库中2008至2015年关于人胚胎干细胞无血清培养的文章,排除观点重复和陈旧的文章,最后对58篇文章进行归纳汇总。结果与结论:研究者已经在使用人源性饲养层细胞、无饲养层基质及限定性成分培养基上做了许多尝试,旨在选择合适的基质和培养基,使异源性成分达到最小化或者不使用,以求获得临床级别的细胞株。但是目前的细胞制品距离临床应用还有很大的距离,仍有很多问题需要解决,比如细胞制品的规范化、标准化、个性化定制等。相信随着干细胞研究和行业的规范,胚胎干细胞产品将会在临床得到广泛应用。
Abstract:
BACKGROUND:Human embryonic stem cels are able to self-renew indefinitely and have the capacity to differentiate into al three germ layers (ectoderm, endoderm and mesoderm). These properties imply great potential in the basic research and clinical application, including regenerative medicine, drug screening and toxins, early human embryo, cel transplantation, gene therapy,etc. However, it is a substantial chalenge to develop efficient techniques for their large-scale culture under defined conditions, and for controling and directing their differentiation. For therapeutic purposes, many scholars are trying to establish methods for maintaining pluripotency in defined xeno-free conditions and scalable culture systems. OBJECTIVE:To discuss the progress of serum-free culture systems in human embryonic stem cel research reported in recent years and to highlight the chalenges and advances being made towards the development of serum-free and xeno-free culture systems suitable for therapeutic applications. METHODS:A computer-based search of CNKI and PubMed academic database was performed for articles addressing serum-free culture systems of human embryonic stem cels published from 2008 to 2015. Repetitive and old articles were excluded. Finaly, 58 articles were summarized. RESULTS AND CONCLUSION:Several groups have attempted to exclude individual animal components by using feeder-free matrices, feeder cels of human origin, or defined xeno-free media, aiming to select a suitable matrix and medium that can minimize or not use heterologous components, in order to obtain cel lines at clinical level. However, the current cel products are far from clinical application. There are stil many problems to be solved, such as standardization, normalization and individualization of cel products. With the normative development of stem cel research and industry, human embryonic stem cel products are expected to be widely used in clinic.
Author: Zhang Zhe Zeng Xian-zhuo Lu Fei Guo Ming-hui Dong Hui-jun
作者单位: 深圳爱生再生医学科技有限公司,广东省深圳市,518057
刊 名 中国组织工程研究 ISTICPKU
年,卷(期): 2015, (41)
分类号: R318
机标分类号: R69 R3
在线出版日期: 2015年11月27日
基金项目: 科技型中小企业技术创新基金(13C26214424713);深圳市战略新兴产业发展专项资金(CYZZ20130828144147780和CYZZ20130417141603486)Funding:the Innovation Fund for Technology Based Firms, No.13C26214424713,the Strategic Emerging Industry Development Fund of Shenzhen, No. CYZZ20130828144147780, CYZZ20130417141603486