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Types of RNA01:23

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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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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...
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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.
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siRNA - Small Interfering RNAs02:30

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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.
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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.
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Updated: Sep 13, 2025

Dual CRISPR-Interference Strategy for Targeting Synthetic Lethal Interactions Between Non-Coding RNAs in Cancer Cells
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Dual CRISPR-Interference Strategy for Targeting Synthetic Lethal Interactions Between Non-Coding RNAs in Cancer Cells

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Circular RNAs as Targets for Developing Anticancer Therapeutics.

Jaewhoon Jeoung1, Wonho Kim1, Hyein Jo1

  • 1Department of Biochemistry, Kangwon National University, Chuncheon 24341, Republic of Korea.

Cells
|July 25, 2025
PubMed
Summary
This summary is machine-generated.

Circular RNAs (CircRNAs) are stable molecules that drive cancer progression and drug resistance by enhancing glycolysis. CircRNA vaccines show promise in improving cancer therapy efficacy.

Keywords:
anticancer drug resistancecancer diagnosiscircular RNA synthesiscircular RNA vaccinecircular RNAsclinical trialsimmune responses

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Area of Science:

  • Molecular Biology
  • Oncology
  • Biochemistry

Background:

  • Circular RNAs (CircRNAs) are RNA molecules formed by back splicing, known for their stability and regulatory roles in cellular processes.
  • CircRNAs interact with nucleic acids and proteins, influencing transcription, translation, metabolism, and cancer progression.
  • Their stability and involvement in cancer make CircRNAs promising biomarkers and therapeutic targets.

Purpose of the Study:

  • To review the mechanisms by which CircRNAs contribute to anticancer drug resistance, particularly through enhanced glycolysis.
  • To discuss the clinical applications of CircRNA vaccines in overcoming drug resistance and improving immunotherapy.
  • To evaluate the advantages and disadvantages of CircRNA-based vaccines.

Main Methods:

  • Literature review of studies on CircRNA function in cancer.
  • Analysis of CircRNA roles in glycolysis and drug resistance.
  • Examination of CircRNA vaccine development and clinical trial data.

Main Results:

  • Dysregulated CircRNA expression is linked to various cancers and anticancer drug resistance.
  • CircRNAs promote glycolysis, contributing to resistance against chemotherapeutic agents.
  • CircRNA vaccines can induce immune responses and enhance sensitivity to immune checkpoint inhibitors.

Conclusions:

  • CircRNAs are critical regulators of anticancer drug resistance and glycolysis.
  • CircRNA vaccines represent a novel therapeutic strategy to overcome drug resistance and boost immunotherapy.
  • CircRNAs hold significant potential as diagnostic, prognostic, and therapeutic tools in oncology.