Evidence map›Paper›PMID 27069954›Full record

ArticleMolecular therapy. Methods & clinical development2016

A regulatable AAV vector mediating GDNF biological effects at clinically-approved sub-antimicrobial doxycycline doses.

Abdelwahed Chtarto, Marie Humbert-Claude, Olivier Bockstael, Atze T Das, Sébastien Boutry, Ludivine S Breger, Bep Klaver, Catherine Melas, Pedro Barroso-Chinea, Tomas Gonzalez-Hernandez and 6 more

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
6.3field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 50 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 7 institutions in 5 countries.

Abdelwahed ChtartoLaboratory of Experimental Neurosurgery and Multidisciplinary Research Institute (I.R.I.B.H.M.), Université Libre de Bruxelles (ULB) , Brussel, Belgium.
Marie Humbert-ClaudeLaboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Dept of Clinical Neuroscience, Lausanne University Hospital , Lausanne, Switzerland.
Olivier BockstaelLaboratory of Experimental Neurosurgery and Multidisciplinary Research Institute (I.R.I.B.H.M.), Université Libre de Bruxelles (ULB) , Brussel, Belgium.
Atze T DasLaboratory of Experimental Virology, Department of Medical Microbiology, Center for Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam , Amsterdam, The Netherlands.
Sébastien BoutryCenter for Microscopy and Molecular Imaging (CMMI) , Charleroi, Belgium.
Ludivine S BregerCNS Gene Therapy Unit, Department of Experimental Medical Sciences, Wallenberg Neuroscience Center, Lund University , Lund, Sweden.
Bep KlaverLaboratory of Experimental Virology, Department of Medical Microbiology, Center for Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam , Amsterdam, The Netherlands.
Catherine MelasLaboratory of Experimental Neurosurgery and Multidisciplinary Research Institute (I.R.I.B.H.M.), Université Libre de Bruxelles (ULB) , Brussel, Belgium.
Pedro Barroso-ChineaDepartamento de Ciencias Médicas Básicas (Anatomía), Facultad de Ciencias de la Salud (Medicina), Instituto de Tecnologías Biomédicas (ITB, CIBICAN), Universidad de La Laguna , Tenerife, Spain.
Tomas Gonzalez-HernandezDepartamento de Ciencias Médicas Básicas (Anatomía), Facultad de Ciencias de la Salud (Medicina), Instituto de Tecnologías Biomédicas (ITB, CIBICAN), Universidad de La Laguna , Tenerife, Spain.
Robert N MullerDepartment of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons , Mons, Belgium.
Olivier DeWitteNeurosurgery, Hôpital Erasme , Brussels, Belgium.
Marc LevivierNeurosurgery unit, Department of Clinical Neuroscience, Lausanne University Hospital , Lausanne, Switzerland.
Cecilia LundbergCNS Gene Therapy Unit, Department of Experimental Medical Sciences, Wallenberg Neuroscience Center, Lund University , Lund, Sweden.
Ben BerkhoutLaboratory of Experimental Virology, Department of Medical Microbiology, Center for Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam , Amsterdam, The Netherlands.
Liliane TenenbaumLaboratory of Cellular and Molecular Neurotherapies, Center for Neuroscience Research, Dept of Clinical Neuroscience, Lausanne University Hospital , Lausanne, Switzerland.
Université Libre de Bruxelles · BEUniversity of Amsterdam · NLUniversity of Lausanne · CHLund University · SEUniversidad de La Laguna · ESErasmus Hospital · BEUniversity of Mons · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preclinical and clinical data stress the importance of pharmacologically-controlling glial cell line-derived neurotrophic factor (GDNF) intracerebral administration to treat PD. The main challenge is finding a combination of a genetic switch and a drug which, when administered at a clinically-approved dose, reaches the brain in sufficient amounts to induce a therapeutic effect. We describe a highly-sensitive doxycycline-inducible adeno-associated virus (AAV) vector. This vector allowed for the first time a longitudinal analysis of inducible transgene expression in the brain using bioluminescence imaging. To evaluate the dose range of GDNF biological activity, the inducible AAV vector (8.0 × 10(9) viral genomes) was injected in the rat striatum at four delivery sites and increasing doxycycline doses administered orally. ERK/Akt signaling activation as well as tyrosine hydroxylase downregulation, a consequence of long-term GDNF treatment, were induced at plasmatic doxycycline concentrations of 140 and 320 ng/ml respectively, which are known not to increase antibiotic-resistant microorganisms in patients. In these conditions, GDNF covered the majority of the striatum. No behavioral abnormalities or weight loss were observed. Motor asymmetry resulting from unilateral GDNF treatment only appeared with a 2.5-fold higher vector and a 13-fold higher inducer doses. Our data suggest that using the herein-described inducible AAV vector, biological effects of GDNF can be obtained in response to sub-antimicrobial doxycycline doses.

Identifiers

PMID27069954
PMCPMC4813607
OpenAlexW2320667347

What OpenQuestion holds

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LicenceCC BY-NC-SA
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.