MicroRNA biomarkers in glioblastoma

Simon Kjær Hermansen1, Bjarne Winther Kristensen

  • 1Department of Pathology, Odense University Hospital, Winsløwparken 15, 3. Floor, 5000, Odense C, Denmark. simon.hermansen@rsyd.dk

Insights

MicroRNAs (miRNAs) show altered expression in glioblastoma, offering potential as cancer biomarkers. Understanding these changes is crucial for developing new diagnostic and therapeutic strategies.

Area of Science:

  • Molecular Biology
  • Oncology
  • Genetics

Background:

  • MicroRNAs (miRNAs) are short non-coding RNA sequences involved in gene regulation.
  • Deregulation of miRNAs is implicated in the initiation and progression of various cancers, including gliomas.
  • Aberrant miRNA expression is observed in glioblastoma compared to normal brain tissues.

Purpose of the Study:

  • To review current knowledge on miRNA alterations in glioblastoma.
  • To focus on the clinical potential of miRNAs as biomarkers for glioblastoma.
  • To discuss methods for evaluating miRNA expression in glioblastoma.

Main Methods:

  • Literature review of recent research on miRNAs in glioblastoma.
  • Analysis of studies profiling miRNA expression in clinical glioblastoma samples.
  • Discussion of strengths and weaknesses of different miRNA expression evaluation techniques.

Main Results:

  • Numerous miRNAs exhibit aberrant expression in glioblastoma.
  • miRNAs demonstrate potential as diagnostic and therapeutic tools in cancer.
  • Understanding miRNA alterations is key for developing novel biomarkers and treatment strategies.

Conclusions:

  • miRNA deregulation is a significant factor in glioblastoma.
  • miRNAs hold promise as clinical biomarkers for glioblastoma.
  • Further research into miRNA expression analysis methods is warranted for clinical application.

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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...
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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...