Vesicular glutamate transporter immunoreactivity in the central and peripheral endings of muscle-spindle afferents

Brain Res. 2004 Jun 18;1011(2):247-51. doi: 10.1016/j.brainres.2004.03.047.

Abstract

Expression of vesicular glutamate transporters (VGLUTs: VGLUT1, VGLUT2 and VGLUT3) in muscle spindle afferents was examined in rats. VGLUT1 immunoreactivity was detected in the sensory endings on the equatorial and juxta-equatarial regions of intrafusal fibers as well as in many axon terminals within lamina IX of the spinal cord. VGLUT1 might be expressed not only in the central axon terminals but also in the peripheral sensory endings of muscle-spindle afferents.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Afferent Pathways / metabolism*
  • Afferent Pathways / ultrastructure
  • Amino Acid Transport Systems, Acidic / metabolism*
  • Animals
  • Carrier Proteins / metabolism*
  • Choline O-Acetyltransferase / metabolism
  • Functional Laterality
  • Immunohistochemistry
  • Male
  • Membrane Transport Proteins*
  • Microscopy, Immunoelectron / methods
  • Muscle Spindles / metabolism*
  • Muscle Spindles / ultrastructure
  • Rats
  • Rats, Wistar
  • Synapses / metabolism
  • Synapses / ultrastructure
  • Vesicular Glutamate Transport Protein 1
  • Vesicular Glutamate Transport Protein 2
  • Vesicular Glutamate Transport Proteins
  • Vesicular Transport Proteins*

Substances

  • Amino Acid Transport Systems, Acidic
  • Carrier Proteins
  • Membrane Transport Proteins
  • Slc17a6 protein, rat
  • Slc17a7 protein, rat
  • Slc17a8 protein, rat
  • Vesicular Glutamate Transport Protein 1
  • Vesicular Glutamate Transport Protein 2
  • Vesicular Glutamate Transport Proteins
  • Vesicular Transport Proteins
  • Choline O-Acetyltransferase