Related Experiment Video
Updated: Jul 13, 2026

In vivo Application of the REMOTE-control System for the Manipulation of Endogenous Gene Expression
Published on: March 29, 2019
[Dicer efficiently converts large dsRNAs into siRNAs suitable for COX-2 gene]
Hong Luo1, Dong-xu Hu, Ping Chen
1Department of Respiratory Diseases Second Xiangya Hospital, Central South University, Changsha 410011, China. luohong1003@163.com
Objective:
To report the use of Dicer to cleave double-stranded RNA (dsRNAs) into small interference RNAs (D-siRNAs) that can target multiple sites within an mRNA, and to acquire an new method to cure inflammation of the airway and tumor.
Methods:
Using RiboMAX Large Scale RNA Production Systems-SP6 and T7 kit were used to transcribe A549 cell COX-2 DNA into RNA (dsRNAs). We mixed dsRNAs with Dicer in the reaction buffer. We recovered siRNAs using RNA Purification Column.
Results:
Dicer efficiently converted double-stranded RNA of COX-2 into small interference RNAs of 21 approximately 23 bp.
Conclusion:
Dicer efficiently converts double-stranded RNA (dsRNA) into small interference RNAs (D-siRNAs of 21 approximately 23 bp).
Related Concept Videos
Experimental RNAi
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 ATP-dependent...
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...
Small interfering RNAs (siRNA)
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 ATP-dependent...
CRISPR and crRNAs
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
Complementary DNA

