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Related Concept Videos

Ribosome Profiling02:24

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
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Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
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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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Proteomics

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Updated: May 23, 2026

Profiling of Estrogen-regulated MicroRNAs in Breast Cancer Cells
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Profiling of Estrogen-regulated MicroRNAs in Breast Cancer Cells

Published on: February 21, 2014

MicroRNA profiling: approaches and considerations.

Colin C Pritchard1, Heather H Cheng, Muneesh Tewari

  • 1Department of Laboratory Medicine, University of Washington, Seattle, Washington, USA.

Nature Reviews. Genetics
|April 19, 2012
PubMed
Summary
This summary is machine-generated.

MicroRNAs (miRNAs) regulate gene expression and show promise as disease biomarkers. This review covers key considerations for effective miRNA expression profiling and data interpretation.

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Last Updated: May 23, 2026

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • MicroRNAs (miRNAs) are small non-coding RNA molecules that regulate gene expression post-transcriptionally.
  • miRNAs play crucial roles in various biological processes, including development, cellular differentiation, and disease pathogenesis.
  • Dysregulation of miRNA expression is implicated in numerous human diseases, highlighting their potential as diagnostic and prognostic biomarkers.

Purpose of the Study:

  • To provide a comprehensive overview of miRNA expression profiling techniques.
  • To discuss the strengths and limitations of different miRNA profiling platforms.
  • To guide researchers in the effective design, execution, and interpretation of miRNA-profiling studies.

Main Methods:

  • Review of current miRNA expression profiling technologies, including quantitative real-time PCR (qRT-PCR), microarrays, and next-generation sequencing (NGS).
  • Analysis of data normalization, statistical analysis, and bioinformatics tools relevant to miRNA expression data.
  • Discussion of pre-analytical and analytical factors influencing miRNA profiling results.

Main Results:

  • Multiple platforms exist for miRNA profiling, each with unique advantages and disadvantages.
  • Accurate interpretation of miRNA expression data requires careful consideration of experimental design and data analysis strategies.
  • Standardization of methods and validation of findings are critical for reliable miRNA biomarker discovery.

Conclusions:

  • Effective miRNA expression profiling necessitates a thorough understanding of available technologies and potential pitfalls.
  • Careful experimental design and robust data analysis are essential for accurate miRNA profiling and biomarker identification.
  • This review aims to facilitate the successful application and interpretation of miRNA profiling studies in both basic research and clinical settings.