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Chromatin Remodeling and Cardiac Differentiation of Stem Cells

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Stem cells: From Potential to Promise

Abstract

Cell fate commitment is achieved by cell type-specific transcription, which in turn is guided by epigenetic mechanisms. Epigenetic and chromatin modifications play important roles in embryonic development, allowing cells to differentiate into particular lineages. Chromatin remodeling correlates well with gene expression, thus contributes to cell fate commitment. Chromatin remodeling enzymes exist as large complexes and possess one or more types of remodeling activities. These enzymes are divided into two categories. The first one consists of enzymes that posttranslationally modify amino termini of histone proteins, by adding or removing methyl, acetyl, sumo, phosphate, or ubiquitin moieties. The other category uses ATP hydrolysis to disrupt interactions between DNA and histone proteins, leading to changes in nucleosome positioning and higher-order chromatin structure. These enzymes increase DNA accessibility, thus allowing gene regulators or transcription factors to bind in order to modulate gene expression. Cardiac tissue development and differentiation is a complex process that relies on extensive networks of interacting transcription factors. The chromatin remodeling enzymes are closely associated with these networks, thus providing an added layer of complexity and refinement to the regulation of heart development. Brahma related gene-1 (BRG-1) and BRG-1 related factors (BAF-60c, BAF-180, and BAF250a) are some of the chromatin remodeling enzymes that have been implicated in the process of chromatin remodeling and involved in cardiac differentiation. The role of these complexes and other factors in the cardiac differentiation of stem cells will be discussed in this chapter.

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Abbreviations

ACF:

ATP-dependent chromatin assembly factor

ADAMTS1:

A disintegrin and metalloproteinase with thrombospondin motifs 1

ANP:

Atrial natriuretic peptide

ARID:

AT-rich interaction domain

BAF:

Brahma-associated factor/BRG-1 related factor

BMP:

Bone morphogenetic protein

BNP:

Brain natriuretic peptide

BRD-7:

Bromodomain 7

BRG-1:

Brahma related gene-1

BRK:

Brahma and Kismet

BRM:

Brahma

C/EBP β:

CCAAT-enhancer binding protein β

CDKN1C:

Cyclin-dependent kinase inhibitor 1C

CERF:

CECR2-containing remodeling factor

CHD:

Chromodomain helicase DNA binding

CHRAC:

Chromatin remodeling and assembly complex

CPB-300:

CREB-binding protein

DNMT1:

DNA methyltransferase 1

DOT1L:

Disruptor of telomeric silencing 1-like

EHMT:

Euchromatic histone-lysine N-methyltransferase

ESCs:

Embryonic stem cells

EZH2:

Enhancer of zeste homolog 2

FGFR-3:

Fibroblast growth factor receptor-3

GATA-4:

GATA binding protein-4

GLP:

G9a-like protein

GNAT:

Gcn-5 related N-acetyltransferase

HAND2:

Heart and neural crest derivatives expressed 2

HAT:

Histone acetyltransferases

HDAC:

Histone deacetylase

HDM:

Histone demethylase

HKMT:

Histone lysine methyltransferase

HMT:

Histone methyltransferases

HP-1:

Heterochromatin protein 1

ING:

Inhibitor of growth

INO-80:

Inositol requiring

ISL-1:

Insulin gene enhancer binding protein 1

ISWI:

Imitation switch

JARID:

Jumonji domain ARID-containing protein

Jmj:

Jumonji

KDM-1:

Lysine demethylase 1

LSD:

Lysine-specific demethylase

MBT:

Malignant brain tumor

MEF2c:

Myocyte enhancer factor 2c

MHC:

Myosin heavy chain

MSCs:

Mesenchymal stem cells

MYH6:

Myosin heavy chain 6

MYST:

MOZ, Ybf2, Sas2, and Tip60

Nkx2.5:

Nk2 homoebox5

NoRC:

Nucleolar remodeling complex

NuRD:

Nucelosome remodeling and deacetylase

NuRF:

Nucelosome remodeling factor

Oct4:

Octamer-binding transcription factor 4

PBAF:

Polybromide-associated BAF

PHD:

Plant homeodomain

PPAR-γ:

Peroxisome proliferator-activated receptor gamma-γ

PRC2:

Polycomb repressive complex 2

PRMT:

Protein arginine methyltransferase

PWWP:

Conserved proline and tryptophan

RSF:

Human remodeling and spacing factor

RUNX-2:

Runt-related transcription factor-2

SANT:

Switching-defective protein 3 (Swi3), adaptor 2 (Ada2), nuclear receptor corepressor (N-CoR), and transcription factor (TF)IIIB

SIRT:

Sirtuin

SMAD-1:

Mothers against decapentaplegic homolog 1

SNF:

Sucrose nonfermenting protein

SNF2H:

Sucrose nonfermenting protein 2 homolog

Sox-9:

SRY-box transcription factor 2

SP:

Specificity protein

SRCAP:

Snf2-related CREBBP activator protein

SUV39H1:

Suppression of variegation 3–9 homolog 1

SWI/SNF:

Switch/Sucrose nonfermenting

Tbx:

T-box protein

TIP60:

Tat-interacting protein of 60 kDa

UTX:

Ubiquitously transcribed tetratricopeptide repeat, X chromosome

WHSC1:

Wolf-Hirschhorn syndrome candidate 1

WICH:

WSTF-ISWI chromatin remodeling complex

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Correspondence to Asmat Salim .

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Ullah, M., Iqbal, H., Haneef, K., Khan, I., Salim, A. (2021). Chromatin Remodeling and Cardiac Differentiation of Stem Cells. In: Haider, K.H. (eds) Stem cells: From Potential to Promise. Springer, Singapore. https://doi.org/10.1007/978-981-16-0301-3_9

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