admin 1 March, 2019 0


ARN antisenserna an rna molecule that can una molécula de ARN que puede hybridize to an mrna molecule. antisentido hibridar con una molécula de. Antisense RNA (asRNA), also referred to as antisense transcript, natural antisense transcript (NAT) or antisense oligonucleotide, is a single stranded RNA that is. Translation for ‘ARN antisentido’ in the free Spanish-English dictionary and many other English translations.

Author: Kikree Gajora
Country: Bolivia
Language: English (Spanish)
Genre: History
Published (Last): 25 July 2012
Pages: 389
PDF File Size: 5.48 Mb
ePub File Size: 10.43 Mb
ISBN: 872-4-65330-812-6
Downloads: 70009
Price: Free* [*Free Regsitration Required]
Uploader: Gardagami

Current Biology 11 One possible reason for this problem is the high requirement on the structure of the asRNAs to be recognized by the target antisentjdo and RNase H. In contrast to cis-acting asRNAs, they display low degree of complementarity with the target gene but can be longer than cis-acting asRNAs.

Sci STKE Cambridge University Press, ed. Nat Biotechnol 22 They may also have therapeutic applications. Despite the promises of asRNAs as drug anitsentido or drug candidates, there are some challenges remained to be addressed [13]. Fomivirsen, a 21 base-pair oligonucleotide, was developed to treat cytomegalovirus retinitis in patients with AIDS. While characterizing the outer membrane porin ompC in E.

Types of nucleic acids.

Views Read Edit View history. Os efectos da interferencia de ARN en plantas e C.

Interferencia de ARN – Wikipedia, a enciclopedia libre

PLoS Genet 2 7: They often show high degree or complete complementarity with the antisebtido gene. In bacteriophage P22, the asRNA sar helps regulate between lytic and lysogenic cycle by control the expression of Ant. Trends Cell Biol 17 3: FLC gene in Arabidopsis thaliana encodes for a transcription factor that prevent expression of a range of genes that induce floral transition.


One classic example in human is zinc-finger E-box binding homeobox 2 gene ZEB2 which encodes E-cadherin, a transcriptional repressor. J Virol 80 Currently, the approach to restore deficient gene expression or protein function include enzyme replacement therapies, microRNA therapies and delivery of functional cDNA. As a regulatory element, asRNAs bear many advantages to be considered as a drug target.

Life Sci 79 afn Despite fomivirsen was discontinued in due to arh loss of the market, it served as a successful and inspiring example of using asRNAs as drug targets or drug candidates.

Interferencia de ARN

Modification on histones can change interactions with DNA which antisenyido further induce changes in gene expression. For example, the synthesized protein used in the enzyme replacement therapies often cannot mimic the whole function of the endogenous protein.

In this method, one or both strands of encoding genes can be used as probes. Consultado o 25 de agosto de Because of the locus specific nature of asRNAs and evidences of changes in asRNA expression in many diseases, there have been attempts to design single stranded oligonucleotides, referred as antagoNATs, to ahtisentido asRNAs and ultimately to increase specific gene expression. Virus Genes 32 3: The most common chemical modification on the oligonucleotides is adding a phosphorothioate linkage to the backbones.


It works by targeting the transcribed mRNA of the virus and consequently inhibiting replication of cytomegalovirus. Retrieved from ” https: Dev Biol 1: Mol Biochem Parasitol 2: Nucleic Acids Res 32 Web Server issue: Current Innovations and Future Trends.

This mechanism is relatively fast because both the targeting mRNA and its asRNA need to be present simultaneously in the same cell. Aravind, Hidemi Watanabe, David J.

“ARN antisentido” in English

En Caister Academic Press. Plant Cell 2 4: Secondly, off target toxicity also represents a big problem. Nat Biotechnol 23 3: Instead of targeting individual mRNAs, these cis-acting epigenetic regulators can recruit chromatin modifying enzymes which can exert effects on both the transcription loci and the neighboring genes. Nucleic Acids Res 33 6: Because of these properties of trans-acting asRNAs, they form less stable complexes with their targeting transcripts and sometimes require aids from RNA chaperone protein such as Hfq to exert their functions.

In terms of drug targets, this represents a huge advantage because only a low dosage is required for effectiveness.

Plant Biotechnol J 4 2: