MiRNAs and cancer

Rosa Visone1, Carlo M Croce

  • 1Department of Molecular Virology, Immunology and Medical Genetics and Comprehensive Cancer Center, The Ohio State University, 460 West, 12th Ave., Columbus, OH 43210, USA.

Insights

MicroRNAs (miRNAs) are small RNAs regulating genes. Aberrant miRNA expression is linked to cancer, offering potential for new diagnostic and therapeutic strategies.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • Cancer develops through sequential genetic alterations.
  • MicroRNAs (miRNAs) are key posttranscriptional gene regulators.
  • Altered miRNA expression is common in human cancers.

Purpose of the Study:

  • To review the role of miRNAs in cancer.
  • To explore miRNAs as diagnostic and prognostic markers.
  • To discuss the therapeutic potential of miRNAs in oncology.

Main Methods:

  • Literature review of scientific articles.
  • Analysis of studies on miRNA expression in malignancies.
  • Synthesis of current knowledge on miRNA functions in cancer.

Main Results:

  • miRNAs play a significant role in cancer development and progression.
  • Specific miRNA patterns can serve as biomarkers for cancer diagnosis and prognosis.
  • miRNAs represent promising targets for novel cancer therapies.

Conclusions:

  • miRNAs are critically involved in tumorigenesis.
  • miRNAs hold substantial promise as clinical tools in oncology.
  • Targeting miRNAs could lead to innovative cancer treatments.

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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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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...
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