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Published on:August 2016
Indian Journal of Pharmaceutical Education and Research, 2016; 50(3):310-321
Review Article | doi:10.5530/ijper.50.3.1

Epigenetics: Impacts on Disease Susceptibility and Pharmacotherapy


Authors and affiliation (s):

Abdullahi Rabiu Abubakar1 and Mainul Haque2*

1Assistant Lecturer, Faculty of Pharmaceutical Sciences, Bayero University Kano, 700231 Kano, Nigeria.

2Professor, the Unit of Pharmacology, Faculty of Medicine and Defense Health, National Defense University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia.

Abstract:

Deoxyribonucleic acid (DNA) is a hereditary material comprising of all the genetic information in humans and almost all other living creatures. It is made up of subunits called genes, which have four nucleotides. MicroRNAs comprises of the short noncoding RNA. They are non-protein coding with about 18-22 nucleotides which control gene expression and activities post-transcriptionally. Notably, the whole DNA structure usually coiled itself around a protein called histone moiety. Consequently, any addition of methyl, ethyl, phosphate, Ubiquitin or small ubiquitin-related modifier either directly on the DNA itself or the histone molecule will ultimately change its configuration and stability leading to the epigenetic modifications. Usually, epigenetic changes manifest phenotypically without changing the actual gene sequence. MicroRNAs also play a vital role in the control of the expression epigenetic regulators, such as DNA methyltransferase (DNMT), histone deacetylase, and Polycomb group genes. The implication of this may significantly affect the normal function of an organism and perhaps contribute to the wide-range of disease aetiology. As such, epigenetics linked variations and diseases are inheritable. The landmark achievement in pharmacotherapy involves the possibility of silencing the oncogenes that are cancer provoking genes and possible reactivation of cancer suppression genes that battle with and repress the tumour cells proliferation. Besides these, more genes that are linked to other diseases apart from cancer can be identified, silenced or activated using drugs or diets in order to treat the disease aetiology. This appraisal is to discuss the role of epigenetic changes in the disease susceptibility and drug treatment.

Key words: Epigenetics, Gene-methylation, Histone, Methyl-group, Cancer, Pharmacotherapy.

 

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The Official Journal of Association of Pharmaceutical Teachers of India (APTI)
(Registered under Registration of Societies Act XXI of 1860 No. 122 of 1966-1967, Lucknow)

Indian Journal of Pharmaceutical Education and Research (IJPER) [ISSN-0019-5464] is the official journal of Association of Pharmaceutical Teachers of India (APTI) and is being published since 1967.

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