Related Experiment Video
Updated: Nov 10, 2025

Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy
Published on: October 4, 2019
Insight Into the Prospects for RNAi Therapy of Cancer
Zhili Tian1,2, Guohui Liang1,2, Kunli Cui3
1Institute of Molecular Medicine, Henan University, Kaifeng, China.
Abstract:
RNA interference (RNAi), also known as gene silencing, is a biological process that prevents gene expression in certain diseases such as cancer. It can be used to improve the accuracy, efficiency, and stability of treatments, particularly genetic therapies. However, challenges such as delivery of oligonucleotide drug to less accessible parts of the body and the high incidence of toxic side effects are encountered. It is therefore imperative to improve their delivery to target sites and reduce their harmful effects on noncancerous cells to harness their full potential. In this study, the role of RNAi in the treatment of COVID-19, the novel coronavirus disease plaguing many countries, has been discussed. This review aims to ascertain the mechanism and application of RNAi and explore the current challenges of RNAi therapy by identifying some of the cancer delivery systems and providing drug information for their improvement. It is worth mentioning that delivery systems such as lipid-based delivery systems and exosomes have revolutionized RNAi therapy by reducing their immunogenicity and improving their cellular affinity. A deeper understanding of the mechanism and challenges associated with RNAi in cancer therapy can provide new insights into RNAi drug development.
Insights
RNA interference (RNAi) offers potential for treating diseases like cancer and COVID-19 by silencing genes. Enhancing delivery systems and reducing side effects are key to improving RNAi therapy effectiveness.
Area of Science:
- Biotechnology
- Molecular Biology
- Genetics
Background:
- RNA interference (RNAi), or gene silencing, is a natural process with therapeutic potential for diseases like cancer.
- Current RNAi therapies face challenges in drug delivery to target sites and managing toxic side effects in non-cancerous cells.
Purpose of the Study:
- To review the mechanism and applications of RNAi, focusing on its role in cancer and COVID-19 treatment.
- To explore current challenges in RNAi therapy, including delivery systems and drug information for improvement.
Main Methods:
- Literature review of RNAi mechanisms, applications, and delivery systems.
- Analysis of challenges in RNAi therapy, particularly for cancer treatment.
- Identification of advanced delivery systems like lipid-based systems and exosomes.
Main Results:
- RNAi demonstrates promise in genetic therapies for cancer and has been explored for COVID-19 treatment.
- Delivery systems, such as lipid-based nanoparticles and exosomes, have significantly improved RNAi therapy by reducing immunogenicity and enhancing cellular uptake.
- Overcoming delivery and toxicity challenges is crucial for realizing the full potential of RNAi therapies.
Conclusions:
- RNAi holds significant therapeutic promise, but effective delivery and reduced toxicity are critical for clinical success.
- Advanced delivery systems are revolutionizing RNAi therapy, improving its safety and efficacy.
- Further research into RNAi mechanisms and delivery is essential for developing novel treatments for cancer and other diseases.
More Related Videos
Related Concept Videos
Experimental RNAi
Targeted Cancer Therapies
There are several types of targeted therapies against...
RNA Interference
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
siRNA - Small Interfering RNAs
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
lncRNA - Long Non-coding RNAs
Treatment Resistant Cancers

