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RNA-seq03:21

RNA-seq

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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Isolation of mRNAs Associated with Yeast Mitochondria to Study Mechanisms of Localized Translation
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MARIS: method for analyzing RNA following intracellular sorting.

Siniša Hrvatin1, Francis Deng1, Charles W O'Donnell2

  • 1The Harvard Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, United States of America.

Plos One
|March 6, 2014
PubMed
Summary
This summary is machine-generated.

A new Method for Analyzing RNA following Intracellular Sorting (MARIS) enables high-quality RNA isolation from specific cell types. This technique facilitates transcriptome profiling for previously inaccessible cells, advancing cell biology research.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Genomics

Background:

  • Transcriptional profiling is crucial for cell biology.
  • Current methods are limited by reagent availability for specific cell identification and RNA isolation.
  • Isolating high-quality RNA from rare or difficult-to-access cell types remains a challenge.

Purpose of the Study:

  • To develop a novel method for isolating high-quality RNA from specific cell types for transcriptome profiling.
  • To overcome limitations in current RNA isolation techniques for cell-specific analysis.
  • To enable transcriptional profiling of previously inaccessible cell populations.

Main Methods:

  • A Method for Analyzing RNA following Intracellular Sorting (MARIS) was developed.
  • The method involves cellular fixation, intracellular immunofluorescent staining, and Fluorescence-Activated Cell Sorting (FACS).
  • High-quality RNA is isolated from specifically tagged cells.

Main Results:

  • MARIS successfully generated high-quality RNA suitable for transcriptome profiling.
  • The technique allowed isolation of RNA from human embryonic stem cell-derived insulin-expressing cells.
  • RNA was also isolated from adult human β cells, demonstrating broad applicability.

Conclusions:

  • MARIS is an effective basic molecular biology technique for isolating high-quality RNA from specific cell types.
  • This method expands the possibilities for transcriptome profiling across various biological disciplines.
  • MARIS overcomes previous limitations in accessing RNA from specialized or rare cells.