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RNAi – A Tool for Target Finding in New Drug Development

[ Vol. 9 , Issue. 3 ]


Virendra S. Gomase and Somnath Tagore   Pages 241 - 244 ( 4 )


RNAi (RNA interference) refers to the introduction of homologous double stranded RNA (dsRNA) to specifically target a genes product, resulting in null or hypomorphic phenotypes. Long double-stranded RNAs (dsRNAs; typically > 200 nt) can be used to silence the expression of target genes in a variety of organisms and cell types (e.g., worms, fruit flies, and plants). The long dsRNAs enter a cellular pathway that is commonly referred to as the RNA interference (RNAi) pathway. RNAi is being considered as an important tool not only for functional genomics, but also for gene-specific therapeutic activities that target the mRNAs of disease-related genes. RNAi plays a very important role in endogenous cellular processes, such as heterochromatin formation, developmental control and serves as an antiviral defense mechanism. RNAi has shown great potential for use as a tool for target finding in new drug development, molecular biological discovery, analysis and therapeutics. RNAi pathway is involved in post-transcription silencing, transcriptional silencing and epigenetic silencing as well as its use as a tool for forward genetics and therapeutics.


RNAi, Gene silencing, RNA silencing, Antisense RNA, neurological disorders


Department of Bioinformatics,Dr. D.Y. Patil Institute for Biotechnology and Bioinformatics, Padmashree Dr. D.Y. Patil University, Plot No-50, Sector-15, CBD Belapur,Navi Mumbai, 400614, India.

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