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Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Related Experiment Video

Updated: Feb 5, 2026

Preparation and In Vitro Characterization of Magnetized miR-modified Endothelial Cells
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Characterizing Epigenetic Changes in Endothelial Cells.

Matthew T Menendez1, Courtney T Griffin2,3

  • 1Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.

Methods in Molecular Biology (Clifton, N.J.)
|September 23, 2018
PubMed
Summary
This summary is machine-generated.

This study details chromatin immunoprecipitation (ChIP) and ChIP-PCR protocols for cultured endothelial cells. These methods enable consistent, quantitative discovery of epigenetic changes at specific genomic sites.

Keywords:
Chemical cross-linkingChromatin fragmentationChromatin immunoprecipitation (ChIP)DNA elementsHistone tail modificationsPolymerase chain reaction (PCR)

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Area of Science:

  • Molecular Biology
  • Epigenetics
  • Cell Biology

Background:

  • Chromatin immunoprecipitation (ChIP) is a key technique for studying protein-DNA interactions and chromatin modifications in cells.
  • Specific antibodies targeting histone tail modifications facilitate the identification of genomic regions with epigenetic changes.
  • Endothelial cells are crucial for vascular function, and understanding their epigenetic regulation is vital.

Purpose of the Study:

  • To provide detailed and reproducible protocols for ChIP and ChIP-quantitative polymerase chain reaction (ChIP-qPCR) in cultured endothelial cells.
  • To enable consistent and quantitative analysis of epigenetic modifications at specific genomic loci.
  • To facilitate the study of epigenetic alterations in endothelial cells under various experimental conditions.

Main Methods:

  • Detailed protocols for chromatin immunoprecipitation (ChIP) are presented.
  • Subsequent quantitative polymerase chain reaction (ChIP-qPCR) methods are described.
  • The protocols are optimized for application in cultured endothelial cells.

Main Results:

  • The provided protocols allow for consistent and quantitative identification of protein-DNA interactions.
  • The methods facilitate the detection of specific epigenetic modifications on histone tails.
  • The chapter offers a framework for investigating epigenetic changes in endothelial cells.

Conclusions:

  • The ChIP and ChIP-qPCR protocols are robust for studying epigenetic modifications in endothelial cells.
  • These methods support reproducible and quantitative discoveries regarding epigenetic regulation in specific cell types.
  • The protocols empower researchers to investigate the impact of different treatments on endothelial cell epigenetics.