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A Multilevel Approach to the Causes of Genetic Instability in Stem Cells

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Handbook of Stem Cell Therapy

Abstract

This chapter addresses the genetic instability in stem cells, a central feature that is an important determinant for the safety and effectiveness of cell-based therapies. First, DNA damage response mechanism and the gene network that regulates the DNA integrity homeostasis are revisited, focusing on relationship between genetic integrity and stemness maintenance. Also, several factors have been included that influence genetic instability in vivo, i.e., ROS generation and inflammation, and in vitro regarding cell isolation, culture conditions, i.e., oxygen levels and the use of feeder layers and different carriers, splitting procedures, passage number, etc. Telomere shortening, replicative senescence aneuploidy, and the senescence-associated secretory phenotype are different processes involved in deterioration of stem cells abilities for homing, reparability, and paracrine modulation. Moreover, less effective DNA repair upon senescence increases the propensity of developing tumors for stem cells that is one the main concerns related to genetic instability in stem cells. Nuclear organization and their determinants linked to chromosome aberrations and aneuploidy in stem cells and those epigenetic changes affecting stability are addressed. Differences between adipose, embryonic, and induced pluripotent stem cells are analyzed regarding to their ontogeny, changes in culture, and variation in proliferative capacity and stemness. The effect of reprogramming methods in genetic instability and variation in mutagenicity according to genes utilized for pluripotency induction, i.e., Yamanaka’s factors and others, is discussed. Donor-related factors, i.e., age, smoking, and alcohol consumption, comorbidities, i.e., obesity, insulin resistance, diabetes, are mentioned for wide evaluation of genetic instability. The next years must witness consensus protocols that will contribute to control the effects of factors that alter stem cell genetic stability to increase the security and applicability of cell-based therapy.

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Abbreviations

ASC:

Adipose stem cells

AT:

Adipose tissue

ATM:

Ataxia telangiectasia mutated

ATR:

ATM- and Rad3-related serine/threonine kinase

BATF:

Basic leucine zipper transcription factor – ATF-like

BER:

Base excision repair

BID:

BH3 interacting domain death agonist

BM-hMSC:

Bone marrow human mesenchymal stem cell

BRCA1:

BReast CAncer gene 1

CASP:

Caspase

Cdc25a:

Cycle regulator phosphatase

CDK:

Cyclin-dependent kinase p16Ink4a

CENP-A:

Centromere histone H3 variant

Cernunnos/XLF:

Nonhomologous end-joining factor 1

CHK1/2:

Checkpoint kinase 1 and 2

c-MYC:

Transcription factor, proto-oncogene

CNVs:

Copy number variations

CT:

Chromosome territories

DBC1:

Deleted in bladder cancer protein 1

DDR:

DNA damage response

DDT:

DNA damage tolerance

DNA-PKcs:

DNA-dependent protein kinase

DPPA3:

Developmental pluripotency-associated protein-3

DSBs:

Double-stranded breaks

EPC:

Endothelial progenitor cells

ESCs:

Embryonic stem cells

Exo1:

Exonuclease 1

FISH:

Fluorescent in situ hybridization

FOXO:

Forkhead box O1 transcription factor

hADSC:

Human adipose-derived stem cells

hESCs:

Human ESCs

HIF-1α:

Hypoxia-inducible factor-1α

hiPSCs:

Human induced pluripotent stem cells

hPSCs:

Human pluripotent stem cells

HR:

Homologous recombination

HSC:

Hematopoietic stem cells

hTR:

Noncoding human telomerase RNA

ICLR:

Interstrand cross-link repair

IDH2:

Isocitrate dehydrogenase-2

iPSCs:

Induced pluripotent stem cells

Klf4:

KrĂĽppel-like factor 4

LIN28A:

Lin-28 homolog A, RNA-binding protein

MAPK p38:

Mitogen-activated protein kinase 38

MDC1:

Mediator of DNA damage checkpoint 1

mESC:

Mouse embryonic stem cells

MMR:

Mismatch repair

MN/CB:

Micronucleus with cytochalasin B

MNR:

Trimeric complex (Mre11, Rad50, and Nbs1)

MRE11:

Homolog double-strand break repair nuclease

MSCs:

Mesenchymal stem cells

mTOR:

Mammalian target of rapamycin

MUSE:

Multilineage-differentiating stress-enduring

NANOG:

Nanog homeobox transcription factor

NBS1:

Nijmegen breakage syndrome 1

NER:

Nucleotide excision repair

NF-ÎşB:

Nuclear factor ÎşB

NHEJ:

Nonhomologous end joining

NPM2:

Nucleoplasmin-2

NSC:

Neural stem cells

Oct-4:

Octamer-binding transcription factor 4, POU5F1

p21/WAF1:

Cyclin-dependent kinase inhibitor 1A

p53:

p53 tumor suppressor gene

PARP1:

Poly-ADP ribose polymerase 1

PBMC:

Peripheral blood mononuclear cells

Pi3KK:

Phosphatidylinositol 3-kinase-related kinase

PPR:

Post-replication repair

PSCs:

Pluripotent stem cells

RAD17:

Checkpoint clamp loader component

RAD18:

RAD18 E3 ubiquitin protein ligase

RAD50:

Double-strand break repair protein

RAD9:

Cell cycle checkpoint control gene RAD9A

Rb:

Rb tumor suppressor gene

ROS:

Reactive oxygen species

RS:

Replicative stress

RT:

Replication-timing

SASP:

Senescence-associated secretory phenotype

SNP:

Single nucleotide polymorphism

SOX-2:

Transcription factor SRY (sex determining region Y)-box

TAD:

Topological associated domains

TCR:

Transcription coupled repair

TLS:

Trans-lesion synthesis

TRA-1-60:

Pluripotency stem cell marker

USSCs:

Human unrestricted somatic stem cells

XPA XPA:

DNA damage recognition and repair factor

ÎłH2AX:

Histone H2AX

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Correspondence to Elio A. Prieto Gonzalez .

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Prieto Gonzalez, E.A. (2022). A Multilevel Approach to the Causes of Genetic Instability in Stem Cells. In: Haider, K.H. (eds) Handbook of Stem Cell Therapy. Springer, Singapore. https://doi.org/10.1007/978-981-16-6016-0_26-1

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  • DOI: https://doi.org/10.1007/978-981-16-6016-0_26-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-6016-0

  • Online ISBN: 978-981-16-6016-0

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