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siRNA - Small Interfering RNAs

siRNA - Small Interfering RNAs

Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
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RNA Interference

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Related Experiment Video

Updated: Jun 2, 2026

Bacterial Delivery of RNAi Effectors: Transkingdom RNAi

Bacterial Delivery of RNAi Effectors: Transkingdom RNAi

Published on: August 18, 2010

Special delivery: targeted therapy with small RNAs.

D Peer¹, J Lieberman

¹Laboratory of Nanomedicine, Department of Cell Research and Immunology, GS Wise Faculty of Life Science and Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, Israel. peer@post.tau.ac.il

|April 15, 2011

Summary

Small RNA drugs offer new therapeutic targets by silencing disease genes. Overcoming delivery challenges is key to realizing their full potential for targeted gene silencing therapies.

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Area of Science:

Biotechnology
Molecular Biology
Pharmacology

Background:

RNA interference (RNAi) enables gene expression knockdown.
Small RNA-based drugs hold promise for targeting disease-causing genes.
Effective delivery of small RNA therapeutics remains a significant challenge.

Purpose of the Study:

To review advancements in overcoming barriers to systemic, local, and cellular RNA drug delivery.
To highlight strategies for achieving targeted uptake of small RNA therapeutics.

Main Methods:

Review of recent scientific literature on RNA drug delivery systems.
Analysis of strategies for enhancing systemic, local, and cellular delivery.
Focus on methods promoting targeted cellular and tissue uptake.

Main Results:

Progress has been made in addressing systemic, local, and cellular delivery barriers.
Various strategies are emerging to improve targeted delivery and uptake of small RNAs.
Targeted uptake mechanisms are crucial for therapeutic efficacy.

Conclusions:

Advancements in delivery technologies are critical for the clinical translation of small RNA drugs.
Overcoming delivery hurdles will expand the therapeutic potential of RNA interference.
Targeted delivery strategies are essential for effective RNA-based gene silencing therapies.