Systems biology-based investigation of cooperating microRNAs as monotherapy or adjuvant therapy in cancer

Nucleic Acids Res. 2019 Sep 5;47(15):7753-7766. doi: 10.1093/nar/gkz638.

Abstract

MicroRNAs (miRNAs) are short, noncoding RNAs that regulate gene expression by suppressing mRNA translation and reducing mRNA stability. A miRNA can potentially bind many mRNAs, thereby affecting the expression of oncogenes and tumor suppressor genes as well as the activity of whole pathways. The promise of miRNA therapeutics in cancer is to harness this evolutionarily conserved mechanism for the coordinated regulation of gene expression, and thus restoring a normal cell phenotype. However, the promiscuous binding of miRNAs can provoke unwanted off-target effects, which are usually caused by high-dose single-miRNA treatments. Thus, it is desirable to develop miRNA therapeutics with increased specificity and efficacy. To achieve that, we propose the concept of miRNA cooperativity in order to exert synergistic repression on target genes, thus lowering the required total amount of miRNAs. We first review miRNA therapies in clinical application. Next, we summarize the knowledge on the molecular mechanism and biological function of miRNA cooperativity and discuss its application in cancer therapies. We then propose and discuss a systems biology approach to investigate miRNA cooperativity for the clinical setting. Altogether, we point out the potential of miRNA cooperativity to reduce off-target effects and to complement conventional, targeted, or immune-based therapies for cancer.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Antagomirs / genetics
  • Antagomirs / metabolism
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / metabolism
  • Antineoplastic Agents / therapeutic use*
  • Apoptosis / drug effects
  • Apoptosis / genetics
  • Chemotherapy, Adjuvant / methods
  • Gene Expression Regulation, Neoplastic*
  • Gene Regulatory Networks
  • Humans
  • MicroRNAs / agonists
  • MicroRNAs / antagonists & inhibitors
  • MicroRNAs / genetics*
  • MicroRNAs / metabolism
  • Neoplasms / genetics
  • Neoplasms / metabolism
  • Neoplasms / pathology
  • Neoplasms / therapy*
  • Oligoribonucleotides / genetics
  • Oligoribonucleotides / metabolism
  • RNA Stability
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • RNA, Neoplasm / agonists
  • RNA, Neoplasm / antagonists & inhibitors
  • RNA, Neoplasm / genetics*
  • RNA, Neoplasm / metabolism
  • Small Molecule Libraries / therapeutic use
  • Systems Biology / methods*
  • Tumor Suppressor Proteins / agonists
  • Tumor Suppressor Proteins / genetics
  • Tumor Suppressor Proteins / metabolism

Substances

  • Antagomirs
  • Antineoplastic Agents
  • MicroRNAs
  • Oligoribonucleotides
  • RNA, Messenger
  • RNA, Neoplasm
  • Small Molecule Libraries
  • Tumor Suppressor Proteins