Sukumaran Sanjay1, Chandrashekaran Girish2. 1. Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India. 2. Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India. gcnx@rediffmail.com.
Abstract
PURPOSE: MicroRNAs (miRNA or miR) are the most abundant and stable class of small RNA. Unlike the typical RNA molecules present in the cell, they do not encode proteins but can control translation. and Hhence, they are found to play a major role in the regulation of cellular processes. miRNAs have been shown to differentially regulate various genes, and the expression levels of some miRNAs changes several fold in liver and serum, during drug- induced toxicity. This review summarises some of the latest findings about the biological functions of miRNA and its potential use as diagnostic biomarkers in drug- induced liver injury. METHODS: The information presented in this article is taken from published literature, both original work and reviews on mechanisms of drug- induced liver injury, miRNA in liver pathophysiology, and studies exploring the use of miRNA as biomarker in drug- induced liver injury. Literature search was done using search engines:- PUBMED, Google scholar, and relevant journal sites. RESULTS AND CONCLUSIONS: Recent research provides insight into the ability of miRNA to regulate various pathways in diseased and nondiseased states of liver. They also lay a foundation for development of diagnostic tests utilizing the potential of miRNAs that can not only be used for early detection of DILI but also to differentiate between different types of DILI. More studies on biological functions of miRNA and standardisation of protocol between research laboratories can lead to further advancement in this field. Considering the therapeutic and diagnostic potential of miRNA, the major challenge would be to integrate these findings to clinical settings where it can be used for the treatment of cases with DILI.
PURPOSE: MicroRNAs (miRNA or miR) are the most abundant and stable class of small RNA. Unlike the typical RNA molecules present in the cell, they do not encode proteins but can control translation. and Hhence, they are found to play a major role in the regulation of cellular processes. miRNAs have been shown to differentially regulate various genes, and the expression levels of some miRNAs changes several fold in liver and serum, during drug- induced toxicity. This review summarises some of the latest findings about the biological functions of miRNA and its potential use as diagnostic biomarkers in drug- induced liver injury. METHODS: The information presented in this article is taken from published literature, both original work and reviews on mechanisms of drug- induced liver injury, miRNA in liver pathophysiology, and studies exploring the use of miRNA as biomarker in drug- induced liver injury. Literature search was done using search engines:- PUBMED, Google scholar, and relevant journal sites. RESULTS AND CONCLUSIONS: Recent research provides insight into the ability of miRNA to regulate various pathways in diseased and nondiseased states of liver. They also lay a foundation for development of diagnostic tests utilizing the potential of miRNAs that can not only be used for early detection of DILI but also to differentiate between different types of DILI. More studies on biological functions of miRNA and standardisation of protocol between research laboratories can lead to further advancement in this field. Considering the therapeutic and diagnostic potential of miRNA, the major challenge would be to integrate these findings to clinical settings where it can be used for the treatment of cases with DILI.
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