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The nigrostriatal pathway in the rat: A single-axon study of the relationship between dorsal and ventral tier nigral neurons and the striosome/matrix striatal compartments

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Prensa, Lucı́a, Parent, André·2001·The Journal of Neuroscience

Abstract

Axons from dorsal/ventral tiers of substantia nigra pars compacta (SNc), ventral tegmental area (VTA), and retrorubral field (RRF) were traced after injecting their cell body with biotinylated dextran amine. Fifty-three single axons were reconstructed from serial sagittal sections with a camera lucida, and mu-opiate receptor immunostaining served to differentiate the striosome/matrix striatal compartments. Most dorsal tier SNc axons terminate within the matrix of the dorsal striatum, but their patterns of arborization vary markedly; some axons innervate one specific matriceal area, whereas others arborize in multiple discontinuous loci. Some dorsal tier SNc axons also project to both striosomes and matrix. Other dorsal tier SNc axons, as well as VTA axons, innervate the ventral striatum and send collaterals to striosomes lying ventrally in the dorsal striatum or to the ventral sector of the subcallosal streak (SS). Ventral tier SNc axons arborize principally in striosomes, but some ramify in both compartments or in striosomes and the SS. Ventral tier neurons that form deep clusters in substantia nigra pars reticulata innervate principally the matrix and the SS. The amygdala and ventral pallidum receive secondary collaterals from striatal axons of dorsal/ventral tier neurons or RRF neurons. The subthalamic nucleus receives collaterals from striatal axons of SNc clustered neurons, whereas the globus pallidus gets collaterals from striatal axons of dorsal/ventral tier SNc neurons. These findings reveal that the nigrostriatal pathway is composed of several neuronal subsystems, each endowed with a widely distributed axonal arborization that allows them to exert a multifaceted influence on striatal and/or extrastriatal structures.

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Crossref · 10.1523/jneurosci.21-18-07247.2001

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  • Projections of Vip+ dopamine neurons are focal, mapped to the bed nucleus of the stria terminalis and central nucleus of the amygdala, and innervate a smaller target volume than other dopamine neurons.

    “The projections of these neurons are peculiar in that they are particularly focal – they have been mapped to the bed nucleus of the stria terminals (BST) and central nucleus of the amygdala [13,20], and appear to innervate a much smaller target volume than other DA neurons (e.g. [49] and [50]).”

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Research works printed but not linked: 2

  1. Bjo ¨rklund A, Lindvall O (1984) Dopamine systems in the CNS. In: Hand- book of chemical neuroanatomy, Classical transmitters in the CNS, Part I (Bjo ¨rklund A, Ho ¨kfelt T, eds), pp 55-112. Amsterdam: Elsevier.
  2. Gerfen CR, Wilson CJ (1996) The basal ganglia. In: Handbook of chem- ical anatomy, integrated systems in the CNS, Part III (Swanson LW, Bjo ¨rkulnd A, Ho ¨kfelt T, eds), pp 371-468. Amsterdam: Elsevier.

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Authors
Prensa, L., & Parent, A.
Affiliations
Université Laval (CA)
Venue
The Journal of Neuroscience
Published
2001-09-15
Volume
21
Issue
18
Pages
7247-7260
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1925686653
Cited by
238
References
62
Citations by year
2026: 5 · 2025: 6 · 2024: 8 · 2023: 10 · 2022: 8 · 2021: 11 · 2020: 10 · 2019: 8 · 2018: 12 · 2017: 14 · 2016: 16 · 2015: 13 · 2014: 8 · 2013: 6 · 2012: 15
FWCI
4.74
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Medical Research Council Canada
  • Medical Research Council
Topics
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
nigrostriatal pathway, substantia nigra pars compacta, substantia nigra pars reticulata, ventral tegmental area, retrorubral field, striosomes, striatal matrix, axonal arborization, striatal projections, subthalamic nucleus, globus pallidus, amygdala, ventral pallidum, mu-opioid receptor
MeSH terms
Animals, Axons, Biotin, Corpus Striatum, Dextrans, Female, Immunohistochemistry, Male, Neural Pathways, Neurons, Substantia Nigra, Organelles, Rats, Sprague-Dawley, Receptors, Opioid, mu, Rats

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