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Pollutants inducing epigenetic changes and diseases

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Abstract

Pollution is a major issue impacting the health of life and ecosystems. In particular, some pollutants may alter gene expression by epigenetic mechanisms such as deoxyribonucleic acid (DNA) methylation, histone modifications, and microRNA (miRNA) expression. Epigenetics is the study of heritable changes without alteration in the DNA sequence. In the healthy state, the coordinated actions of interconnected epigenetic factors are responsible for proper cell development and cell regulation. Epigenetic mechanisms are tissue-specific; hence, a pollutant may or may not cause an alteration depending on the type of tissue. Here we review mechanisms by which pollutants disrupt epigenetic factors. We focus on the impact of arsenic, cadmium, nickel, mercury, benzene, bisphenol A, dioxin, hexahydro-1,3,5-trinitro-1,3,5-triazine and diethylstilbestrol. A list of diseases related to epigenetic factors and heavy metals exposure is provided.

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Abbreviations

DNA:

Deoxyribonucleic acid

CpG sites:

Cytosine-guanine dinucleotide

H1, H3, H4, H5, H3K4, H3K9, H2A, and H2B:

Different types of histones

Acetyl-CoA:

Acetyl coenzyme A

HDAC:

Histone deacetylases

HATS:

Histone acetyltransferase

RNAi:

RNA interference

mRNA:

Messenger ribonucleic acid

pri-mRNA:

Primary messenger ribonucleic acid

RISC:

RNA-induced silencing complex

ROS:

Reactive oxygen species

DNMTs:

DNA methyltransferase

SAM:

S-adenyl methionine

AS3MT:

Arsenite methyltransferase

DAPK:

Death-associated protein kinase

TRL1215:

Transformation of cultured rat liver cells

DAPK:

Death-associated protein kinase

CdTE:

Cadmium telluride

LAMP3:

Lysosomal-associated membrane protein 3

AhR:

Aryl hydrogen receptor

Igf2:

Insulin-like growth factor

RDX:

Research department explosive

K562:

Myelogenous leukemia cells

JEG-3:

Human choriocarcinoma cells

P15 and p16:

Tumor suppressive proteins

RASSF1A:

Ras association domain family 1 isoform A

γ-H2AX:

Biomarker for DNA double-strand breaks

G12:

Chinese hamster glioblastoma cells

GPT:

Guanine phosphoribosyltransferase

16HBE:

Human bronchial epithelial cells

C57BL/6:

Laboratory black mice inbred strain

FHIT:

Fragile triad diadenosine triphosphatase

RND 2:

Rho family GTPase 2

Alu-DNA:

Arthrobacter luteus DNA

CD-1:

Albino mice outbred strain

CYP1:

Cytochrome polypeptide monooxygenase

B6C3F1:

Type of hybrid mice derived from C57BL/6 mice

EZH2:

Enhancer of zeste homolog 2

MCF-7:

Michigan Cancer Foundation 7

wild-type SV:

Genetically contaminated mice

αERKO:

Estrogen receptor alpha knockout

Ltf:

Lactotransferrin

TNX:

Hexahydro-1,3,5-trinitroso-1,3,5-triazine

DNX:

Hexahydro-1,3-dinitroso-5-nitro-1,3,5-triazine

MNX:

Hexahydro-1-nitroso-3,5-dinitro-1,3,5-triazine

miRNA:

Micro-ribonucleic acid (miR-9-3 , miR-191, miR-222 and miR-19a are subtypes of miRNA)

WI38, TK6, A549, NIH/3T3, 3A, MCF-7:

Different types of cell lines used in in vitro studies

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Correspondence to N. Sivarajasekar or Mu. Naushad.

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Sharavanan, V.J., Sivaramakrishnan, M., Sivarajasekar, N. et al. Pollutants inducing epigenetic changes and diseases. Environ Chem Lett 18, 325–343 (2020). https://doi.org/10.1007/s10311-019-00944-3

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  • DOI: https://doi.org/10.1007/s10311-019-00944-3

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