Applications of engineered exosomes in drugging noncoding RNAs for cancer therapy

Forough Alemi1, Fatemeh Sadeghsoltani1, Khashayar Fattah2

  • 1Department of Clinical Biochemistry and Laboratory Medicine, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.

PubMed

Insights

Noncoding RNAs (ncRNAs) show promise in cancer therapy but face delivery challenges. Exosomes offer a novel solution for effective ncRNA delivery and cancer treatment strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biotechnology

Background:

  • Noncoding RNAs (ncRNAs) play critical roles in cellular processes and cancer.
  • Altered ncRNA expression is linked to cancer progression, prevention, and therapy.

Purpose of the Study:

  • To review the applications and limitations of ncRNAs in cancer therapy.
  • To explore exosome-based delivery systems for ncRNAs.
  • To highlight recent advancements in using exosomes for ncRNA-targeted cancer treatment.

Main Methods:

  • Literature review of ncRNA applications in cancer.
  • Analysis of challenges in ncRNA delivery, uptake, and stability.
  • Examination of exosome biogenesis and cargo loading mechanisms.
  • Review of studies utilizing exosomes for ncRNA delivery in cancer models.

Main Results:

  • ncRNAs are significant in cancer biology but face hurdles like poor delivery and short half-life.
  • Exosomes emerge as effective natural nanocarriers for ncRNA delivery to target cells.
  • Exosome-based delivery overcomes many limitations of free ncRNAs, enhancing therapeutic potential.

Conclusions:

  • Exosome-mediated delivery represents a promising strategy to overcome ncRNA therapeutic barriers.
  • Further research into exosome-ncRNA therapeutics could lead to novel cancer treatment modalities.

Related Concept Videos

Overview of Exosomes01:36

Overview of Exosomes

Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
2.8K
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...
7.7K
MicroRNAs01:22

MicroRNAs

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...
3.0K
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...
6.2K
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...
16.8K
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...
8.6K