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Retention of Somatic Memory Associated with Cell Identity, Age and Metabolism in Induced Pluripotent Stem (iPS) Cells Reprogramming.
Stem Cell Reviews and Reports ( IF 4.8 ) Pub Date : 2020-02-03 , DOI: 10.1007/s12015-020-09956-x
Tze Sean Khoo 1 , Rahman Jamal 1 , Nur Azurah Abdul Ghani 2 , Hafiza Alauddin 3 , Noor Hamidah Hussin 3 , Nor Azian Abdul Murad 1
Affiliation  

The discovery of induced pluripotent stem (iPS) cells in 2006 marked a major breakthrough in regenerative medicine, enabling reversal of terminally differentiated somatic cells into pluripotent stem cells. The embryonic stem (ES) cells-like pluripotency and unlimited self-renewal capability of iPS cells have granted them enormous potential in many applications, particularly regenerative therapy. Unlike ES cells, however, iPS cells exhibit somatic memories which were carried over from the tissue of origin thus limited its translation in clinical applications. This review provides an updated overview of the retention of various somatic memories associated with the cellular identity, age and metabolism of tissue of origin in iPS cells. The influence of cell types, stage of maturation, age and various other factors on the retention of somatic memory has been discussed. Recent evidence of somatic memory in the form of epigenetic, transcriptomic, metabolic signatures and its functional manifestations in both in vitro and in vivo settings also have been reviewed. The increasing number of studies which had adopted isogenic cell lines for comparisons in recent years had facilitated the identification of genuine somatic memories. These memories functionally affect iPS cells and its derivatives and are potentially tumorigenic thus, raising concerns on their safety in clinical application. Various approaches for memory erasure had since being reported and their efficacies were highlighted in this review.

中文翻译:

保留与诱导多能干细胞(iPS)重编程中的细胞身份,年龄和代谢相关的体细胞记忆。

2006年诱导多能干细胞(iPS)的发现标志着再生医学的一项重大突破,使最终分化的体细胞逆转为多能干细胞。胚胎干(ES)细胞样的多能性和iPS细胞无限的自我更新能力使它们在许多应用中具有巨大的潜力,特别是在再生疗法中。但是,与ES细胞不同,iPS细胞显示出从起源组织继承来的体细胞记忆,因此限制了其在临床应用中的翻译。这项审查提供了与iPS细胞中的细胞身份,年龄和起源组织的代谢相关的各种体细胞记忆的保留的更新概述。细胞类型,成熟阶段,年龄和各种其他因素在保留体细胞记忆方面已有讨论。还审查了表观遗传学,转录组学,代谢特征及其在体外和体内的功能表现形式的体细胞记忆的最新证据。近年来,越来越多的采用等基因细胞系进行比较的研究促进了对真正体细胞记忆的鉴定。这些记忆在功能上影响iPS细胞及其衍生物,并可能具有致瘤性,因此引起人们对它们在临床应用中安全性的担忧。此后已报道了多种用于擦除存储器的方法,并且在本次评测中着重介绍了它们的功效。在体外和体内环境中的代谢特征及其功能表现也已被综述。近年来,越来越多的采用等基因细胞系进行比较的研究促进了对真正体细胞记忆的鉴定。这些记忆在功能上影响iPS细胞及其衍生物,并可能具有致瘤性,因此引起人们对它们在临床应用中安全性的担忧。此后已报道了多种用于擦除存储器的方法,并且在本次评测中着重介绍了它们的功效。在体外和体内环境中的代谢特征及其功能表现也已被综述。近年来,越来越多的采用等基因细胞系进行比较的研究促进了对真正体细胞记忆的鉴定。这些记忆在功能上影响iPS细胞及其衍生物,并可能具有致瘤性,因此引起人们对它们在临床应用中安全性的担忧。此后,已经报道了各种用于擦除存储器的方法,并且在本文中重点介绍了它们的功效。这些记忆在功能上影响iPS细胞及其衍生物,并可能具有致瘤性,因此引起人们对它们在临床应用中安全性的担忧。此后已报道了多种用于擦除存储器的方法,并且在本次评测中着重介绍了它们的功效。这些记忆在功能上影响iPS细胞及其衍生物,并可能具有致瘤性,因此引起人们对它们在临床应用中安全性的担忧。此后,已经报道了各种用于擦除存储器的方法,并且在本文中重点介绍了它们的功效。
更新日期:2020-02-03
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