Related Experiment Video
Updated: Aug 14, 2026
13:10
DNA Vector-based RNA Interference to Study Gene Function in Cancer
Published on: June 4, 2012
Prospects of RNA interference therapy for cancer
1Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA.
Gene Therapy
|December 13, 2005
Summary
RNA interference (RNAi) is a promising gene-silencing technology for cancer therapy. While effective in preclinical models, challenges in delivery and specificity must be addressed for clinical application.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- RNA interference (RNAi) is a natural gene-silencing mechanism with significant therapeutic potential.
- Understanding cancer's molecular pathways has opened avenues for RNAi-based cancer therapies.
- RNAi has been instrumental in identifying key molecules in cancer development and progression.
Purpose of the Study:
- To explore the potential of RNA interference (RNAi) as a cancer therapy.
- To investigate RNAi's role in targeting key molecules in carcinogenesis.
- To review RNAi's application in addressing tumor-host interactions and treatment resistance.
Main Methods:
- Gene silencing via RNA interference (RNAi) technology.
- Targeting key molecules involved in carcinogenesis.
- Investigating RNAi effects on tumor-host interactions and treatment resistance.
- Evaluating antiproliferative and proapoptotic effects in cell cultures and animal models.
Main Results:
- RNAi demonstrated significant antiproliferative and proapoptotic effects in preclinical cancer models.
- Silencing of critical gene products via RNAi showed promise in cell-culture and animal studies.
- RNAi targeting has been explored for crucial molecules in cancer development and treatment resistance.
Conclusions:
- RNAi holds substantial promise for cancer therapy by enabling targeted gene silencing.
- Overcoming challenges like in vivo delivery, gene suppression efficiency, and off-target effects is crucial for clinical translation.
- Early-phase clinical trials for RNAi-based cancer therapies are anticipated in the near future.
More Related Videos
Related Concept Videos
01:23RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
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...
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...
01:23RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
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...
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...
02:15Experimental RNAi
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
02:30siRNA - 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.
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...
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...
01:30Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...