PMID- 22697266 OWN - NLM STAT- MEDLINE DCOM- 20130613 LR - 20191112 IS - 1875-6166 (Electronic) IS - 1871-5249 (Linking) VI - 12 IP - 3 DP - 2012 Sep TI - Emerging RNA-based drugs: siRNAs, microRNAs and derivates. PG - 217-32 AB - An emerging new category of therapeutic agents based on ribonucleic acid has emerged and shown very promising in vitro, animal and pre-clinical results, known as small interfering RNAs (siRNAs), microRNAs mimics (miRNA mimics) and their derivates. siRNAs are small RNA molecules that promote potent and specific silencing of mutant, exogenous or aberrant genes through a mechanism known as RNA interference. These agents have called special attention to medicine since they have been used to experimentally treat a series of neurological conditions with distinct etiologies such as prion, viral, bacterial, fungal, genetic disorders and others. siRNAs have also been tested in other scenarios such as: control of anxiety, alcohol consumption, drug-receptor blockage and inhibition of pain signaling. Although in a much earlier stage, miRNAs mimics, anti-miRs and small activating RNAs (saRNAs) also promise novel therapeutic approaches to control gene expression. In this review we intend to introduce clinicians and medical researchers to the most recent advances in the world of siRNA- and miRNA-mediated gene control, its history, applications in cells, animals and humans, delivery methods (an yet unsolved hurdle), current status and possible applications in future clinical practice. FAU - Pereira, Tiago Campos AU - Pereira TC AD - Department of Biology, Sciences and Languages of Ribeirao Preto - FFCLRP, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil. tiagocampospereira@ffclrp.usp.br FAU - Lopes-Cendes, Iscia AU - Lopes-Cendes I LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United Arab Emirates TA - Cent Nerv Syst Agents Med Chem JT - Central nervous system agents in medicinal chemistry JID - 101269163 RN - 0 (MicroRNAs) RN - 0 (Pharmaceutical Preparations) RN - 0 (RNA, Small Interfering) SB - IM MH - Animals MH - Drug Discovery/methods/*trends MH - Gene Transfer Techniques/trends MH - Genetic Therapy/methods/*trends MH - Humans MH - Mental Disorders/genetics/therapy MH - MicroRNAs/*administration & dosage/*genetics MH - Nervous System Diseases/genetics/therapy MH - Pharmaceutical Preparations/administration & dosage MH - RNA, Small Interfering/*administration & dosage/*genetics EDAT- 2012/06/16 06:00 MHDA- 2013/06/14 06:00 CRDT- 2012/06/16 06:00 PHST- 2012/03/06 00:00 [received] PHST- 2012/05/03 00:00 [revised] PHST- 2012/05/14 00:00 [accepted] PHST- 2012/06/16 06:00 [entrez] PHST- 2012/06/16 06:00 [pubmed] PHST- 2013/06/14 06:00 [medline] AID - CMCCNSA-EPUB-20120611-1 [pii] AID - 10.2174/187152412802430138 [doi] PST - ppublish SO - Cent Nerv Syst Agents Med Chem. 2012 Sep;12(3):217-32. doi: 10.2174/187152412802430138.