Micronucleus Assay in Lymphocytes for Human Biomonitoring and Clinical Studies

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Biomarkers in Toxicology

Abstract

Micronuclei (MN) are originated when a whole or broken chromosome/chromatin lag at the anaphase of dividing cells and becomes separated from the main chromatin during telophase. The test to detect this structure in lymphocytes, the cytokinesis-block micronucleus cytome (CBMN-Cyt) assay, has been used for over 40 years and it is still being applied in new and promising areas of biology, health, and nanotechnology. It can be used to assess the genotoxic effect derived from occupational and environmental exposure or because of having a chronic disease. In addition, the test can be considered an indirect measure of prognosis in clinical studies. The present chapter reviews different studies that describe the formation of MN in lymphocytes and the associations of the increase of MN in individuals exposed environmentally and occupationally to different genotoxic agents. In addition, this chapter brings some results of this biomarker of genomic instability and its relation with different diseases.

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Abbreviations

AD:

Alzheimer’s disease

ALS:

Amyotrophic lateral sclerosis

AT:

Ataxia telangiectasia

AUD:

Autoimmune diseases

BFB:

Breakage-fusion-bridge

BN:

Binucleate cells

CAD:

Coronary artery disease

CBMN-Cyt:

Cytokinesis-block micronucleus cytome

CKD:

Chronic kidney disease

COPD:

Chronic obstructive pulmonary disease

CRC:

Colorectal cancer

CS:

Cockayne’s syndrome

DNA:

Deoxyribonucleic acid

DS:

Down syndrome

FAL:

Formaldehyde

GTS:

Green tobacco sickness

HNC:

Head and neck cancers

IARC:

International Agency for Research on Cancer

MCI:

Mild cognitive impairment

MN:

Micronuclei

NBUD:

Nuclear buds

NPB:

Nucleoplasmic bridges

NSCL/P:

Non-syndromic orofacial clefts and/or palate

NTD:

Neural tube defects

PAH:

Polycyclic aromatic hydrocarbons

PD:

Parkinson’s diseases

ROS:

Reactive oxygen species

SIL:

Squamous intraepithelial lesions

T2D:

Type 2 diabetes

WS:

Werner’s syndrome

XP:

Xeroderma pigmentosum

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Correspondence to Juliana Da Silva .

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Da Silva, J. et al. (2023). Micronucleus Assay in Lymphocytes for Human Biomonitoring and Clinical Studies. In: Patel, V.B., Preedy, V.R., Rajendram, R. (eds) Biomarkers in Toxicology. Biomarkers in Disease: Methods, Discoveries and Applications. Springer, Cham. https://doi.org/10.1007/978-3-031-07392-2_40

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