A DNA molecule has two strands, one of which is the sense strand (coding strand) and the other is the antisense strand (template strand). During the process of transcription, the RNA strand is synthesized on the template DNA strand. Hence, it is complementary to the template DNA strand while usually identical to the coding/sense strand. Antisense oligonucleotides and small interfering RNA (siRNA) are synthetic nucleic acid molecules designed to modulate gene expression through Watson-Crick base pairing. Such molecules are increasingly recognized as an important class of therapeutics, with several drugs having achieved regulatory approval, and many more being under development Antisense oligos can be used in conjunction with RNaseH to digest DNA–rRNA hybrids (5,24). Several studies in both mammals and bacteria have shown that RNaseH-mediated rRNA depletion is efficient, resulting in sequencing libraries with minimal rRNA derived reads (5,23–27). Commercial solutions have emerged for select taxa; however, the ease Although the antisense effects of tc-DNA without lipofection were only seen at considerably higher concentrations, the direct transfection efficiency can probably still be improved. If this is the case, tc-DNA antisense oligonucleotides should be promising reagents for therapeutic invivo applications. For this, however, animal toxicity studies Antisense oligonucleotides (ASOs) have been validated as therapeutic agents and an important tool in molecular biology. Indeed, ASOs are used either in vitro or in vivo to generate mRNA selective knockouts. They can be used for human therapy since ASOs can inhibit specifically target genes especially whose are difficult to target with small molecules inhibitors or neutralizing antibodies agly.

what is antisense dna