MicroRNAs as therapeutic targets in chemoresistance

Michela Garofalo1, Carlo M Croce

  • 1Department of Molecular Virology, Immunology and Medical Genetics, Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA.

Insights

MicroRNAs (miRNAs) can overcome chemotherapy resistance by correcting gene expression in cancer cells. miRNA-based therapies offer a promising approach to enhance anti-tumor treatment efficacy.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • Cancer therapies face challenges including drug resistance, pathway insensitivity, and toxicity.
  • MicroRNAs (miRNAs), small noncoding RNAs, regulate gene expression and are implicated in cancer drug resistance.
  • Dysregulated miRNAs can lead to reduced sensitivity to chemotherapy in various cancers.

Purpose of the Study:

  • To discuss the role of microRNAs in chemotherapy resistance.
  • To highlight recent advancements in miRNA-based therapeutics for cancer treatment.
  • To explore miRNA mimics and antagomiRs as tools to restore chemosensitivity.

Main Methods:

  • Review of experimental evidence on miRNA dysregulation in cancer drug resistance.
  • Analysis of miRNA mimics and antagomiRs for correcting gene regulatory networks.
  • Focus on development and delivery strategies for miRNA-based cancer therapeutics.

Main Results:

  • Specific miRNAs are demonstrably involved in mediating chemotherapy resistance.
  • Correction of miRNA levels can normalize oncogenic signaling pathways.
  • Restored miRNA function sensitizes cancer cells to chemotherapy agents.

Conclusions:

  • MicroRNA-based gene therapy presents a viable strategy for integrated cancer treatment.
  • Targeting miRNAs can overcome drug resistance and improve therapeutic outcomes.
  • Further development in miRNA therapeutic delivery is crucial for clinical application.

Related Concept Videos

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...
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 ends...
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 ends...
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
Microbial Corrosion01:24

Microbial Corrosion

Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
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...