Photobiomodulation-induced changes in a monkey model of Parkinson's disease: changes in tyrosine hydroxylase cells and GDNF expression in the striatum.
Identifieur interne : 000611 ( Main/Exploration ); précédent : 000610; suivant : 000612Photobiomodulation-induced changes in a monkey model of Parkinson's disease: changes in tyrosine hydroxylase cells and GDNF expression in the striatum.
Auteurs : Nabil El Massri [Australie] ; Ana P. Lemgruber [Australie] ; Isobel J. Rowe [Australie] ; Cécile Moro [France] ; Napoleon Torres [France] ; Florian Reinhart [France] ; Claude Chabrol [France] ; Alim-Louis Benabid [France] ; John Mitrofanis [Australie]Source :
- Experimental brain research [ 1432-1106 ] ; 2017.
Abstract
Intracranial application of red to infrared light, known also as photobiomodulation (PBM), has been shown to improve locomotor activity and to neuroprotect midbrain dopaminergic cells in rodent and monkey models of Parkinson's disease. In this study, we explored whether PBM has any influence on the number of tyrosine hydroxylase (TH)(+)cells and the expression of GDNF (glial-derived neurotrophic factor) in the striatum. Striatal sections of MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine)-treated mice and monkeys and 6-hydroxydopamine (6OHDA)-lesioned rats that had PBM optical fibres implanted intracranially (or not) were processed for immunohistochemistry (all species) or western blot analysis (monkeys). In our MPTP monkey model, which showed a clear loss in striatal dopaminergic terminations, PBM generated a striking increase in striatal TH(+) cell number, 60% higher compared to MPTP monkeys not treated with PBM and 80% higher than controls. This increase was not evident in our MPTP mouse and 6OHDA rat models, both of which showed minimal loss in striatal terminations. In monkeys, the increase in striatal TH(+) cell number in MPTP-PBM cases was accompanied by similar increases in GDNF expression, as determined from western blots, from MPTP and control cases. In summary, these results offer insights into the mechanisms by which PBM generates its beneficial effects, potentially with the use of trophic factors, such as GDNF.
DOI: 10.1007/s00221-017-4937-0
PubMed: 28299414
Affiliations:
- Australie, France
- Auvergne-Rhône-Alpes, Nouvelle-Galles du Sud, Rhône-Alpes
- Grenoble, Sydney
- Université de Sydney
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xml:lang="fr">Australie</country><wicri:regionArea>Department of Anatomy F13, University of Sydney, Sydney, 2006</wicri:regionArea><orgName type="university">Université de Sydney</orgName><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName></affiliation></author><author><name sortKey="Lemgruber, Ana P" sort="Lemgruber, Ana P" uniqKey="Lemgruber A" first="Ana P" last="Lemgruber">Ana P. Lemgruber</name><affiliation wicri:level="4"><nlm:affiliation>Department of Anatomy F13, University of Sydney, Sydney, 2006, Australia.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Department of Anatomy F13, University of Sydney, Sydney, 2006</wicri:regionArea><orgName type="university">Université de Sydney</orgName><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName></affiliation></author><author><name sortKey="Rowe, Isobel J" sort="Rowe, Isobel J" uniqKey="Rowe I" first="Isobel J" last="Rowe">Isobel J. 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In this study, we explored whether PBM has any influence on the number of tyrosine hydroxylase (TH)(+)cells and the expression of GDNF (glial-derived neurotrophic factor) in the striatum. Striatal sections of MPTP (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine)-treated mice and monkeys and 6-hydroxydopamine (6OHDA)-lesioned rats that had PBM optical fibres implanted intracranially (or not) were processed for immunohistochemistry (all species) or western blot analysis (monkeys). In our MPTP monkey model, which showed a clear loss in striatal dopaminergic terminations, PBM generated a striking increase in striatal TH(+) cell number, 60% higher compared to MPTP monkeys not treated with PBM and 80% higher than controls. This increase was not evident in our MPTP mouse and 6OHDA rat models, both of which showed minimal loss in striatal terminations. In monkeys, the increase in striatal TH(+) cell number in MPTP-PBM cases was accompanied by similar increases in GDNF expression, as determined from western blots, from MPTP and control cases. In summary, these results offer insights into the mechanisms by which PBM generates its beneficial effects, potentially with the use of trophic factors, such as GDNF.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Nouvelle-Galles du Sud</li><li>Rhône-Alpes</li></region><settlement><li>Grenoble</li><li>Sydney</li></settlement><orgName><li>Université de Sydney</li></orgName></list><tree><country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="El Massri, Nabil" sort="El Massri, Nabil" uniqKey="El Massri N" first="Nabil" last="El Massri">Nabil El Massri</name></region><name sortKey="Lemgruber, Ana P" sort="Lemgruber, Ana P" uniqKey="Lemgruber A" first="Ana P" last="Lemgruber">Ana P. Lemgruber</name><name sortKey="Mitrofanis, John" sort="Mitrofanis, John" uniqKey="Mitrofanis J" first="John" last="Mitrofanis">John Mitrofanis</name><name sortKey="Rowe, Isobel J" sort="Rowe, Isobel J" uniqKey="Rowe I" first="Isobel J" last="Rowe">Isobel J. Rowe</name></country><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Moro, Cecile" sort="Moro, Cecile" uniqKey="Moro C" first="Cécile" last="Moro">Cécile Moro</name></region><name sortKey="Benabid, Alim Louis" sort="Benabid, Alim Louis" uniqKey="Benabid A" first="Alim-Louis" last="Benabid">Alim-Louis Benabid</name><name sortKey="Chabrol, Claude" sort="Chabrol, Claude" uniqKey="Chabrol C" first="Claude" last="Chabrol">Claude Chabrol</name><name sortKey="Reinhart, Florian" sort="Reinhart, Florian" uniqKey="Reinhart F" first="Florian" last="Reinhart">Florian Reinhart</name><name sortKey="Torres, Napoleon" sort="Torres, Napoleon" uniqKey="Torres N" first="Napoleon" last="Torres">Napoleon Torres</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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