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Related Experiment Videos

TRPV1 Regulates Stress Responses through HDAC2.

Sung Eun Wang1, Seung Yeon Ko1, Sungsin Jo2

  • 1Graduate School of Biomedical Science and Engineering, Hanyang Biomedical Research Institute, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.

Cell Reports
|April 14, 2017
PubMed
Summary

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Mice lacking the TRPV1 channel show increased stress resilience. This resilience is linked to reduced HDAC2 activity, suggesting TRPV1 influences stress responses via HDAC2.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Behavioral Science

Background:

  • Stress impacts brain neurotransmission and behavior.
  • The role of Transient Receptor Potential Vanilloid 1 (TRPV1) in stress response and neuroplasticity is not well understood.
  • TRPV1 channels are primarily known for their involvement in pain sensation.

Purpose of the Study:

  • To investigate the role of TRPV1 in stress resilience.
  • To elucidate the molecular mechanisms linking TRPV1 to stress responses.
  • To identify potential molecular mediators between TRPV1 and stress-induced behaviors.

Main Methods:

  • Utilized Trpv1-deficient (Trpv1-/-) mice and control littermates.
  • Administered chronic unpredictable stress paradigms.
Keywords:
GRHDAC2TRPV1behaviordepressionhippocampusstress

Related Experiment Videos

  • Assessed stress resilience and behavioral changes.
  • Measured glucocorticoid receptor (GR)-mediated histone deacetylase 2 (HDAC2) expression and activity.
  • Performed hippocampal TRPV1 knockdown and HDAC2 overexpression experiments.

    • Main Results:

    • Trpv1-/- mice exhibited enhanced stress resilience compared to controls.
    • Reduced HDAC2 expression and activity were observed in Trpv1-/- mice.
    • HDAC2-regulated molecules involved in cell-cycle and neuroplasticity were altered in Trpv1-/- mice.
    • Hippocampal TRPV1 knockdown mimicked these effects, which were reversed by HDAC2 overexpression.

    Conclusions:

    • TRPV1 deficiency confers stress resilience in mice.
    • HDAC2 acts as a key molecular link between TRPV1 activity and the regulation of stress responses.
    • Targeting the TRPV1-HDAC2 pathway may offer novel therapeutic strategies for stress-related disorders.