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Impact of MicroRNA Polymorphisms on Breast Cancer Susceptibility

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Genetic Polymorphism and cancer susceptibility

Abstract

MicroRNAs (miRNAs) are considered as the micromanagers of gene expression. They are said to be involved in several physiological and pathological processes. They are capable of altering the hallmarks of cancer and hence are considered as prominent cancer biomarkers. More recently, the microRNAs related polymorphism, i.e. single nucleotide polymorphisms (SNPs) or (poly-miRs’) are reported and are exhaustively being studied. SNPs or (poly-miRs’) might occur in the miRNA biogenesis pathway, in miRNAs themselves or in their target binding sites, the consequences of such polymorphism, and its impact on life still remain dubious. miRNAs have known to be implicated in several diseases including cancer, revealed from a pool of studies performed in past years. Moreover, several studies have reported a strong association between SNPs to susceptibility as well as the prognosis towards cancer. Polymorphisms in miRNAs are even found to be associated with breast cancer and evidential support suggests that they substantially increase breast cancer susceptibility. In this chapter, we will summarize and discuss the most recent shreds of evidence explaining the role of miRNAs and the poly-miRs’ in cancer pathogenesis, with particular emphasis on breast cancer susceptibility and prognosis.

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Abbreviations

3′-UTR:

3′-untranslated regions

ADRB2:

Gene coding for beta-2 adrenergic receptor (β2 adrenoreceptor)

Ago:

Argonaute

BRCA1:

Breast cancer type 1 susceptibility protein

BRCA2:

Breast cancer type 2 susceptibility protein

C. elegans:

Caenorhabditis elegans

CI:

Confidence interval

CLDN12:

Gene coding for Claudin-12

CLL:

Chronic lymphocytic leukemia

CSCs:

Cancer stem cells

DFS:

Disease-free survival

DGCR8:

DiGeorge syndromecriticalregiongene8

DHFR:

Dihydrofolate reductase

EIF2C1/2:

Eukaryotic translation initiation factors 2C 1 and 2

EMT:

Epithelial-mesenchymal transition

Expo/Xpo:

Exportin

GEMIN 3:

Gem-associated protein 3

GEMIN 4:

Gem-associated protein 4

GWASs:

Genome-wide association studies

HCV:

Hepatitis C virus

HIF1AN:

Gene coding for Hypoxia-inducible factor 1-alpha inhibitor

KRAS-V:

V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog

LNA:

Locked nucleic acid

miRNA:

microRNA

miRNPs:

miRNA-containing ribonucleoprotein particles

MMP:

Metalloproteinase

OR:

Odds ratio

OS:

Overall survival

Pol II:

Polymerase II

Pol III:

Polymerase III

Pre-miRNA:

Precursor microRNA

Pri-miRNA:

Primary miRNA transcript

RA:

Rheumatoid arthritis

RAN:

RAS-related nuclear protein

RISC:

RNA-induced silencing complex

RPS6KB1:

Ribosomal protein S6 kinase B1

SLE:

Systemic lupus erythematosus

SNPs:

Single nucleotide polymorphism

TARBP 2:

Transactivation-responsive RNA-binding protein2

TNRC6A:

Trinucleotide repeat-containing gene 6A

ZNF839:

Zinc finger protein 839

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Correspondence to Nusrath Yasmeen .

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© 2021 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Yasmeen, N., Kumar, V., Shaikh, K.D. (2021). Impact of MicroRNA Polymorphisms on Breast Cancer Susceptibility. In: Sameer, A.S., Banday, M.Z., Nissar, S. (eds) Genetic Polymorphism and cancer susceptibility. Springer, Singapore. https://doi.org/10.1007/978-981-33-6699-2_3

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