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Epigenetic Regulation01:46

Epigenetic Regulation

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Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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Epigenetic Regulation01:37

Epigenetic Regulation

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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.
X-chromosome...
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Histone Modification02:32

Histone Modification

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The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
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Spreading of Chromatin Modifications02:25

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The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex.
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Behavior Modification01:21

Behavior Modification

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Behavioral approaches have often been criticized for ignoring mental processes and focusing solely on observable behavior. However, these approaches provide an optimistic perspective for individuals seeking to change their behaviors. Rather than concentrating on intrinsic personality traits, behavioral approaches suggest that even longstanding habits can be modified by changing the reward contingencies that maintain them.
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Updated: Jan 24, 2026

Extraction of Histones from Clinical Specimens for Epigenetic Profiling by Mass Spectrometry
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Epigenetic Modification in Preclinical and Clinical Dermatological Itch Conditions.

Asuka Fujishiro1,2, Silvia Lo Vecchio1, Rocco Giordano1

  • 1Center for Neuroplasticity and Pain, SMI, Department of Health Science and Technology, School of Medicine, Aalborg University, Aalborg, Denmark.

European Journal of Pain (London, England)
|January 22, 2026
PubMed
Summary

Epigenetic modifications, such as DNA methylation and microRNAs, are linked to itch in both animal models and human skin conditions. These findings suggest new therapeutic targets for chronic itch.

Keywords:
DNA methylationepigeneticshistone modificationitchmiRNAnon‐coding RNApruritus

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Area of Science:

  • Dermatology
  • Genetics
  • Molecular Biology

Background:

  • Epigenetic modifications regulate gene expression without altering DNA sequence.
  • Epigenetics is implicated in pain, but its role in itch is under-investigated.
  • Itch is a common symptom in various dermatological conditions.

Purpose of the Study:

  • To review current knowledge on epigenetic modifications in itch.
  • To explore epigenetic involvement in preclinical and clinical itch models.
  • To identify potential therapeutic targets for itch.

Main Methods:

  • Systematic literature search of PubMed and Google Scholar.
  • Keywords included itch, pruritus, epigenetics, DNA methylation, histone modification, and non-coding RNAs.
  • Inclusion of preclinical and clinical studies, exclusion of non-peer-reviewed formats.

Main Results:

  • DNA methylation is involved in itch regulation in atopic dermatitis and other pruritic conditions.
  • Histone deacetylase inhibitors show potential in alleviating pruritus.
  • Specific microRNAs (e.g., miR-711, miR-203) act as itch mediators in animal and clinical models.

Conclusions:

  • A significant association exists between itch and epigenetic modifications.
  • Consistent epigenetic changes across studies suggest shared molecular regulators of itch.
  • Epigenetic insights may lead to novel treatments for chronic itch.