Türkçe Özet: MikroRNA\'lar son dönemlerde keşfedilen evrimsel süreçte korunmuş, endojen, kodlanmayan ve yaklaşık 22 nükleotid uzunluğunda kısa RNA molekülüdürler. MikroRNA\'lar farklılaşma, neoplastik transformasyon, hücre replikasyonu ve rejenerasyonu gibi birçok hücresel süreçte düzenleyici olarak görev alırlar. Bu düzenleyici görevlerinden dolayı birçok hastalıkta anormal mikroRNA ekspresyon düzeylerinin saptanması şaşırtıcı olmamıştır. Yapılan son çalışmalarda dolaşımdaki mikroRNA\'ların klinik biyobelirteç olarak kullanılabileceği rapor edilmiştir. Tümör baskılayıcı ve onkogenik özellik gösteren mikroRNA\'lar hedeflenmiş kanser tedavi stratejilerine mükemmel bir olanak sağlamıştır. Onkogenik özellik gösteren mikroRNA\'lar anti-miRNA oligonükleotid\'ler, mikroRNA süngerleri ve mikroRNA maskeleri gibi birçok RNA interferans-tip stratejiler ile deaktive edilirler veya susturulurlar. Benign hastalık durumlarında ekspresyonu azalan tümör baskılayıcı mikroRNA\'ların işlevleri ise mikroRNA mimikleri veya viral vektör kodlanmış mikroRNA replasman tedavisi ile sağlanır. Bu nedenle bu derlemede mikroRNA tabanlı tedavi stratejilerinin avantajlarının vurgulanması amaçlandı.
Abstract Therapeutic Usage of MicroRNAs MicroRNAs are recently discovered family of endogenous, noncoding and evolutionarily conserved RNA molecules with approximately 22 nucleotide in length. MicroRNAs play important regulatory roles in many cellular processes, including differentiation, neoplastic transformation, cell replication and regeneration. Because of these regulatory roles, it has not been surprising that aberrant microRNA expression has been implicated in several diseases. Recent studies have reported that circulating microRNAs could serve as useful clinical biomarkers. MicroRNAs putative role as oncogenes or tumour suppressor genes presents a great opportunity to provide targeted cancer treatment strategies. MicroRNAs with oncogenic capacity can be deactivated or silenced by several RNA interference-type strategies by anti-miRNA oligonucleotides, microRNA sponges and microRNA masking. In case of benign disease state, the functions of the tumor supressing microRNAs with declining expression can be achieved through microRNA mimicry or viral vector encoded microRNA replacement therapy. Thus, in this review, it was aimed to emphasize the advantages of microRNA based therapeutic strategies.
| Primary Language | Turkish |
|---|---|
| Authors | |
| Submission Date | June 13, 2014 |
| Publication Date | June 1, 2011 |
| IZ | https://izlik.org/JA33ZE92KJ |
| Published in Issue | Year 2011 Volume: 4 Issue: 2 |
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