Cited by 484Neurotransmitter Receptor Influence on BehaviorTreatment of Major DepressionNeuroscience and Neuropharmacology Research

Enhancing depression mechanisms in midbrain dopamine neurons achieves homeostatic resilience

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Friedman, Allyson K., Walsh, Jessica J., Juarez, Barbara, Ku, Stacy M., Chaudhury, Dipesh, Wang, Jing, Li, Xianting, Dietz, David M. +5 more·2014·Science

Abstract

Resilient Hyperpolarization: Despite constant exposure to all sorts of stressors, most people are resilient and do not develop depression, but we do not understand the neurophysiological underpinnings of stress resilience. Friedman et al. (p. 313 ) studied this phenomenon in a mouse model of social-defeat stress depression. In the mice they found that, despite apparently pathological levels of hyperpolarization and elevated potassium channel currents in the ventral tegmental area (a structure known to be involved in depression), resilient mice showed normal activity in dopaminergic neurons. Thus, if “depressed” mice were experimentally provoked into hyperpolarization—unexpectedly, they completely reversed depression-related behaviors.

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Crossref · 10.1126/science.1249240

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  • Chronic optogenetic activation of VTA-DA neurons in susceptible mice can restore their firing rate to normal levels, reverse social avoidance, and shift them from susceptibility to resilience.

    “Chronic optogenetic activation of VTA-DA neurons in susceptible mice can restore their firing rate to normal levels, reverse social avoidance, and shift them from susceptibility to resilience”
  • Repeated ventral tegmental area optogenetic stimulation dampens phasic firing of ventral tegmental area neurons through alterations in Ih potassium conductance and promotes resilience in chronic social defeat stress mice.

    “For instance, repeated VTA optogenetic stimulation is sufficient to dampen phasic firing of VTA neurons through alterations in Ih potassium conductance (54), promoting resilience in CSDS mice, and providing a potential parallel in mechanism.”
  • Phasic, but not tonic, optogenetic stimulation of ventral tegmental area to nucleus accumbens projecting neurons promotes susceptibility to chronic social defeat stress.

    “The effect of chronic stress on VTA DA neuron firing is lasting (37, 65, 66), is driven by activity of intrinsic potassium channels (54), and phasic but not tonic optogenetic stimulation of VTA-NAc projecting neurons promotes susceptibility to CSDS (54, 66–68).”
  • Ventral tegmental area dopamine neuron firing is driven by activity of intrinsic potassium channels.

    “The effect of chronic stress on VTA DA neuron firing is lasting (37, 65, 66), is driven by activity of intrinsic potassium channels (54), and phasic but not tonic optogenetic stimulation of VTA-NAc projecting neurons promotes susceptibility to CSDS (54, 66–68).”
  • BDNF is responsible for stress susceptibility.

    “Rather, BDNF was responsible for stress susceptibility and antagonism of the BDNF receptor TrkB, prevented susceptibility (37, 38, 54, 65, 67, 68).”

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Research works printed but not linked: 1

  1. [4]Kumar S Feldman G Hayes A Cognitive Therapy and Research 32 734 2008 PMC2847784 20360998

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Authors
Friedman, A. K., Walsh, J. J., Juarez, B., Ku, S. M., Chaudhury, D., Wang, J., Li, X., Dietz, D. M., Pan, N., Vialou, V. F., Neve, R. L., Yue, Z., & Han, M.-H.
Affiliations
  • Icahn School of Medicine at Mount Sinai (US)
  • McGovern Institute for Brain Research (US)
Corresponding author
Han, Ming-Hu
Venue
Science
Published
2014-04-18
Volume
344
Issue
6181
Pages
313-319
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2058867280
Cited by
484
References
35
Citations by year
2026: 26 · 2025: 29 · 2024: 51 · 2023: 36 · 2022: 45 · 2021: 41 · 2020: 46 · 2019: 51 · 2018: 35 · 2017: 43 · 2016: 36 · 2015: 27 · 2014: 16 · 2012: 1
FWCI
18.60
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Alcohol Abuse and Alcoholism (R01AA022445)
  • National Institute of Mental Health (F31MH108326, P50MH096890, R01MH092306, F31MH095425, T32MH096678, F32MH096464, T32MH087004, T32MH020016)
  • National Institute of Neurological Disorders and Stroke (R01NS060123)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
depression, ventral tegmental area, dopaminergic neurons, social defeat stress, potassium currents, neuronal hyperactivity, homeostatic plasticity, optogenetics, antidepressant mechanism, depression vulnerability
MeSH terms
Lamotrigine, Animals, Behavior, Animal, Depression, Homeostasis, Male, Membrane Potentials, Mice, Inbred C57BL, Mice, Transgenic, Social Behavior, Stress, Psychological, Triazines, Potassium Channels, Ventral Tegmental Area, Patch-Clamp Techniques, Mice, Resilience, Psychological, Electrophysiological Phenomena, Dopaminergic Neurons, Optogenetics, Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels

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