Population-specific neuromodulation prolongs therapeutic benefits of deep brain stimulation

Science. 2021 Oct 8;374(6564):201-206. doi: 10.1126/science.abi7852. Epub 2021 Oct 7.

Abstract

Symptoms of neurological diseases emerge through the dysfunction of neural circuits whose diffuse and intertwined architectures pose serious challenges for delivering therapies. Deep brain stimulation (DBS) improves Parkinson’s disease symptoms acutely but does not differentiate between neuronal circuits, and its effects decay rapidly if stimulation is discontinued. Recent findings suggest that optogenetic manipulation of distinct neuronal subpopulations in the external globus pallidus (GPe) provides long-lasting therapeutic effects in dopamine-depleted (DD) mice. We used synaptic differences to excite parvalbumin-expressing GPe neurons and inhibit lim-homeobox-6–expressing GPe neurons simultaneously using brief bursts of electrical stimulation. In DD mice, circuit-inspired DBS provided long-lasting therapeutic benefits that far exceeded those induced by conventional DBS, extending several hours after stimulation. These results establish the feasibility of transforming knowledge of circuit architecture into translatable therapeutic approaches.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Deep Brain Stimulation / methods*
  • Disease Models, Animal
  • Dopamine / deficiency*
  • Dopamine / genetics
  • Female
  • Globus Pallidus / cytology
  • Globus Pallidus / physiopathology*
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Neurons / physiology*
  • Optogenetics
  • Parkinson Disease / physiopathology
  • Parkinson Disease / therapy*
  • Subthalamic Nucleus / cytology
  • Subthalamic Nucleus / physiopathology
  • Synapses / physiology
  • Transcutaneous Electric Nerve Stimulation / methods*

Substances

  • Dopamine