RNA DE INTERFERÊNCIA COMO ESTRATÉGIA TERAPÊUTICA
DOI:
https://doi.org/10.36557/2674-8169.2026v8n2p5-18Palavras-chave:
RNA interferente, Silenciamento gênico, Nanopartículas lipídicas, Biofarmacologia translocacionalResumo
Introdução: A descoberta da RNAi revelou um mecanismo natural de silenciamento gênico onde moléculas de RNA degradam o RNA mensageiro alvo. Isso quebrou o dogma do RNA como mero intermediário e abriu uma nova fronteira terapêutica. Objetivos: Analisar os mecanismos moleculares da RNAi, a evolução das tecnologias de entrega e o atual estágio de suas aplicações clínicas. Metodologia: Revisão narrativa focada na via canônica (Dicer/RISC), na comparação entre vetores virais e não virais (LNPs e GalNAc) e no histórico de aprovações regulatórias. Conclusão: A tecnologia é um sucesso clínico validado por fármacos como o Patisiran, permitindo tratar doenças antes incuráveis. O desafio atual é expandir a entrega para além do fígado e integrar a técnica a novas ferramentas como o CRISPR.
Downloads
Referências
BAEK, D. et al. The impact of microRNAs on protein output. Nature, London, v. 455, p. 64–71, 2008.
BERNSTEIN, E. et al. Role for a bidentate ribonuclease in the initiation step of RNA interference. Nature, v. 409, n. 6818, p. 363-366, 18 jan. 2001. DOI: 10.1038/35053110. PMID: 11201747.
BRUMMELKAMP, T. R.; BERNARDS, R.; AGAMI, R. A System for Stable Expression of Short Interfering RNAs in Mammalian Cells. Science Magazine, New York, p. 550–553, 2002.
BRUMMELKAMP, T. R.; BERNARDS, R.; AGAMI, R. Stable Suppression of Tumorigenicity by Virus-mediated RNA Interference. Cancer Cell, Massachusetts, p. 243–247, 2002.
CASTANOTTO, D. et al. Combinatorial delivery of small interfering RNAs reduces RNAi efficacy by selective incorporation into RISC. Nucleic Acids Research, Oxford, v. 35, p. 5154–5164, 2007.
CASTANOTTO, D.; ROSSI, J. J. The Promises and Pitfalls of RNA interference-based Therapeutics. Nature, London, v. 457, p. 426-433, 2009.
CLAYTON, J. RNA interference: the silent treatment. Nature, London, v. 431, p. 599–605, 2004.
COGONI, C.; MACINO, G. Post-transcriptional gene silencing across kingdoms. Current Opinion in Genetics & Development, v. 10, n. 6, p. 638-643, 2000.
DALMAY, T. et al. An RNA-dependent RNA polymerase gene in Arabidopsis is required for post-transcriptional gene silencing mediated by a transgene but not by a virus. Cell Press, Cambridge, v. 101, p. 543–553, 2000.
DORN, G. et al. siRNA relieves chronic neuropathic pain. Nucleic Acids Research, v. 32, n. 5, e49, 2004.
ELBASHIR, S. M.; LENDECKEL, W.; TUSCHL, T. RNA interference is mediated by 21- and 22-nucleotide RNAs. Genes & Development, New York, v. 15, p. 188-200, 2001.
FARAH, M. H. RNAi silencing in mouse models of neurodegenerative diseases. Current Drug Delivery, Illinois, v. 4, p. 161–167, 2007.
FIRE, A. et al. Potent and Specific Genetic Interference by Double-stranded RNA in Caenorhabditis Elegans. Nature, London, v. 391, p. 806–811, 1998.
GANJU, P.; HALL, J. Potential applications of siRNA for pain therapy. Expert Opinion on Biological Therapy, v. 4, n. 4, p. 531-542, 2004.
GILBERT, W. The RNA world. Nature, London, v. 319, p. 618, 1986.
GRIMM, D. et al. Fatality in Mice Due to Oversaturation of Cellular MicroRNA/short hairpin RNA pathways. Nature, London, v. 441, p. 537–541, 2006.
GUO, S.; KEMPHUES, K. J. Par-1, a gene required for establishing polarity in C. elegans embryos, encodes a putative Ser/Thr kinase that is asymmetrically distributed. Cell Press, Cambridge, v. 81, p. 611–620, 1995.
HOWARD, K. A. et al. RNA interference in vitro and in vivo using a novel chitosan/siRNA nanoparticle system. Nature, London, v. 14, p. 476–484, 2006.
KENNERDELL, J. R.; CARTHEW, R. W. Use of dsRNA-mediated genetic interference to demonstrate that frizzled and frizzled 2 act in the wingless pathway. Cell, v. 95, n. 7, p. 1017-1026, 23 dez. 1998. DOI: 10.1016/s0092-8674(00)81725-0. PMID: 9875855.
KLEINMAN, M. E. et al. Sequence- and target-independent angiogenesis suppression by siRNA via TLR3. Nature, London, v. 452, p. 591–597, 2008.
KULKARNI, J. A. et al. The current landscape of nucleic acid therapeutics. Nature Nanotechnology, v. 16, n. 6, p. 630-643, jun. 2021. DOI: 10.1038/s41565-021-00898-0. PMID: 34059811.
KUMAR, P. et al. Transvascular delivery of small interfering RNA to the central nervous system. Nature, London, v. 448, p. 39–43, 2007.
LI, B. J. et al. Using siRNA in prophylactic and therapeutic regimens against SARS coronavirus in Rhesus macaque. Nature, London, v. 11, p. 944–951, 2005.
MATZKE, M. A.; BIRCHLER, J. A. RNAi-mediated pathways in the nucleus. Nature, London, v. 6, p. 24–35, 2005.
MONIAN, P. et al. Endogenous ADAR-mediated RNA editing in non-human primates using stereopure chemically modified oligonucleotides. Nature Biotechnology, v. 40, n. 7, p. 1093-1102, jul. 2022. DOI: 10.1038/s41587-022-01225-1. PMID: 35256816.
MOURRAIN, P. et al. Arabidopsis SGS2 and SGS3 genes are required for post-transcriptional gene silencing and natural virus resistance. Cell Press, Cambridge, v. 101, p. 533–542, 2000.
NAPOLI, C.; LEMIEUX, C.; JORGENSEN, R. Introduction of a chimeric chalcone synthase gene into Petunia results in reversible cosuppression of homologous genes in trans. The Plant Cell, v. 2, p. 279-289, 1990.
NYKANEN, A.; HALEY, B.; ZAMORE, P. D. ATP requirements and small interfering RNA structure in the RNA interference pathway. Cell Press, Cambridge, v. 107, p. 309-321, 2001.
PADDISON, P. J. et al. Short hairpin RNAs (shRNAs) induce sequence-specific silencing in mammalian cells. Genes & Development, New York, v. 16, p. 948–958, 2002.
PEER, D. et al. Systemic leukocyte-directed siRNA delivery revealing cyclin D1 as an anti-inflammatory target. Science Magazine, New York, v. 319, p. 627–630, 2008.
SATO, Y. et al. Resolution of liver cirrhosis using vitamin A-coupled liposomes to deliver siRNA against a collagen-specific chaperone. Nature, London, v. 26, p. 431–442, 2008.
SELBACH, M. et al. Widespread changes in protein synthesis induced by microRNAs. Nature, London, v. 455, p. 58–63, 2008.
SHEN, J. et al. Suppression of ocular neovascularization with siRNA targeting VEGF receptor 1. Gene Therapy, London, v. 13, p. 225–234, 2006.
SIJEN, T. et al. On the role of RNA amplification in dsRNA-triggered gene silencing. Cell Press, Cambridge, v. 107, p. 465–476, 2001.
SINGH, S. K.; GAUR, R. K. Progress towards therapeutic application of RNA interference for HIV infection. BioDrugs, v. 23, p. 269-276, 2009.
SMARDON, A. et al. EGO-1 is related to RNA-directed RNA polymerase and functions in germ-line development and RNA interference in C. elegans. Current Biology, Cambridge, v. 10, p. 169–178, 2000.
SONG, E. et al. Antibody mediated in vivo delivery of small interfering RNAs via cell-surface receptors. Nature, London, v. 23, p. 709–717, 2005.
ZAMORE, P. D. et al. RNAi: double-stranded RNA directs the ATP-dependent cleavage of mRNA at 21 to 23 nucleotide intervals. Cell Press, Cambridge, v. 101, p. 25–33, 2000.
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Copyright (c) 2026 Fernando Malachias de Andrade Bergamo, Gustavo Bueno Kincheski, Rafael Shenji Kitamura, Débora Marioto

Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
Os autores são detentores dos direitos autorais mediante uma licença CCBY 4.0.
