Potential roles of antisense oligonucleotides in cancer therapy. The example of Bcl-2 antisense oligonucleotides

Nathalie Dias1, C A Stein

  • 1Columbia University, New York, NY 10032, USA.

Insights

Antisense oligonucleotides (ASOs) can selectively downregulate gene expression. This review details precautions for ASO use and discusses G3139

Area of Science:

  • Molecular Biology
  • Gene Regulation
  • Oligonucleotide Therapeutics

Background:

  • Antisense oligonucleotides (ASOs) are utilized for targeted gene silencing.
  • ASOs can elicit non-specific effects, potentially confounding experimental outcomes.
  • Careful methodology is crucial for accurate ASO research.

Purpose of the Study:

  • To review essential precautions for using antisense oligonucleotides.
  • To describe the application of the oligonucleotide G3139 in cancer research.
  • To highlight the potential of ASOs in therapeutic settings.

Main Methods:

  • Literature review of ASO applications and potential pitfalls.
  • Summary of experimental and clinical data regarding G3139.
  • Analysis of bcl-2 messenger RNA targeting by G3139.

Main Results:

  • Identification of key precautions to mitigate non-specific ASO effects.
  • Demonstration of G3139's efficacy in inhibiting tumor progression in vitro.
  • Evidence of G3139's activity in clinical trials.

Conclusions:

  • Adherence to recommended precautions is vital for reliable ASO research.
  • G3139 shows promise as an anti-cancer therapeutic agent targeting bcl-2.
  • ASOs represent a valuable tool for gene expression modulation and cancer therapy.

Related Concept Videos

Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against specific...
The Intrinsic Apoptotic Pathway01:31

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
siRNA - Small Interfering RNAs02:30

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.
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...
Experimental RNAi02:15

Experimental 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...
lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...