The Effect of Genetic Stability Molecules on the Movement of Human Embryonic Stem Cells

Author:

Zhou Xiaoxiang,Liu Yu

Abstract

Objective: To give full play to the role of human embryonic stem cells (hESCs) in biomedicine, innovate the treatment model of human diseases, and study the effect of genetic stability molecules of hESCs on movement. Methods: hESCs were cultured by mechanical passage, type IV collagenase passage and 0.25% EDTA trypsin passage respectively to find the best passage way of hESCs culture; hESCs were differentiated into endometrial like cells through embryoid pathway in vitro, and the morphology of endometrial like cells was observed under light microscope; the genomic DNA of human embryonic stem cells was detected by SNP chip, and its components were analyzed. The SNP analysis of the samples before and after the induction of differentiation were used to extract the DNA of the endometrial epithelioid cells of hESCs, and the DNA microarray results before and after the induction of hESCs were detected. Results: type IV collagenase passage method took a long time and was not suitable to control the digestion time and inoculation density; 0.25% EDTA trypsin digested hESCs into a single cell state, which was not conducive to continuous growth after being inoculated in the feeder layer; mechanical passage method could cut into different sizes of clumps according to the needs, and could remove differentiated or deviated cells, which was more suitable for hESCs passage; light microscopically, the cells grow in a single layer and adhere to the wall, and the cells extending to the surrounding irregularity are spindle shaped. With the extension of differentiation time, the central part of the clone is loose, the cells fall off, and the surrounding cells grow intensively to the outer part of the clone. The mutant gene involves 1131 mutations and 24 chromosome mutations, of which the mutation rate of chromosome 19 is the largest, and it involves the length of chromosome 5. It is longer than that of other chromosomes, and there are many genes carried by it, which results in the exon mutations on chromosome 5. Conclusion: mechanical subculture is the best way for hESCs culture, and long-term subculture will affect the genetic stability of human embryonic stem cells.

Publisher

American Scientific Publishers

Subject

General Materials Science

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3