A review on RNA technologies renaissance: a paradigm shift shaping the future of modern medicine

RNA technologies have undergone a remarkable transformation from obscure curiosities to the vanguard of biomedical innovation. Once relegated to a passive role in the central dogma, RNA is now recognized as a structurally versatile and functionally dynamic molecule with the capacity to regulate, encode, and architect cellular processes. This review provides a comprehensive and integrative overview of contemporary RNA-based technologies, encompassing both fundamental biological insights and clinical translation. We begin by outlining the structural and functional diversity of coding and non-coding RNAs, laying the foundation for therapeutic platforms such as RNA interference, antisense oligonucleotides, and mRNA-based vaccines and protein replacement therapies. The challenges of delivery, immunogenicity, and molecular stability are addressed through advanced delivery systems, such as exosomes and hybrid nanocarriers. Undoubtedly, RNA nanotechnology emerges as both an engineering and therapeutic frontier, offering self-assembling structures for targeted drug delivery, including siRNA-loaded nanoparticles and aptamer-based constructs with clinical traction. Meanwhile, RNA-centric omics, ranging from direct RNA sequencing and single-cell transcriptomics to spatial gene expression profiling, offer unprecedented resolution for understanding disease pathophysiology, guiding personalized medicine, and developing biomarker-driven therapies. Despite significant hurdles in delivery, immune activation, and regulatory logistics, RNA technologies continue to evolve through modular design, AI-guided optimization, and systems-level integration. We conclude by exploring emerging trends that position RNA not just as a therapeutic tool, but as a universal language for precision biology. In this synthesis, RNA is reimagined not merely as a molecule, but as a platform dynamic, programmable, and central to the future of medicine. RNA inspired technologies: Toehold, STARs, SHERLOCK, DETECTR, scRNA-sequencing, and RNA nanotechnology underscoring their respective application