Evidence map›Paper›PMID 24747217›Full record

ArticleStem cell research2014

VGF (TLQP-62)-induced neurogenesis targets early phase neural progenitor cells in the adult hippocampus and requires glutamate and BDNF signaling.

Smita Thakker-Varia, Joseph Behnke, David Doobin, Vidhi Dalal, Keya Thakkar, Farah Khadim, Elizabeth Wilson, Alicia Palmieri, Hanna Antila, Tomi Rantamaki and 1 more

Abstract read
In one paragraph

Article in Stem cell research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Thalamocortical axons regulate neurogenesis and laminar fates in the early sensory cortex.Proceedings of the National Academy of Sciences of the United States of America · 2022
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  9. Effects ofFrontiers in molecular neuroscience · 2022
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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

11 authors.

Smita Thakker-VariaDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: varia@rutgers.edu.
Joseph BehnkeDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: jabehnke@eden.rutgers.edu.
David DoobinDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: djd2148@columbia.edu.
Vidhi DalalDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: vdalal89@gmail.com.
Keya ThakkarDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: kthakkar90@gmail.com.
Farah KhadimDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: farah.khadim@gmail.com.
Elizabeth WilsonDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: liz.v.wilson@gmail.com.
Alicia PalmieriDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: palmieaj@rwjms.rutgers.edu.
Hanna AntilaNeuroscience Center, University of Helsinki, P.O. Box 56, Viikinkaari 4, 00014 Helsinki, Finland. Electronic address: hanna.antila@helsinki.fi.
Tomi RantamakiNeuroscience Center, University of Helsinki, P.O. Box 56, Viikinkaari 4, 00014 Helsinki, Finland. Electronic address: tomi.rantamaki@helsinki.fi.
Janet AlderDepartment of Neuroscience and Cell Biology, Rutgers University - Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA. Electronic address: janet.alder@rutgers.edu.

Funding

Neuropeptide VGF in Antidepressant-Induced Neurogenesis and Mood DisordersR01MH083857 · NIMH · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI ALDER, JANET · 2010 to 2014
$1.7M
NIMH NIH HHS R01 MH083857NIMH NIH HHS R01MH083857-03
6 · The paper itself

Abstract

The neuropeptide VGF (non-acronymic), which has antidepressant-like effects, enhances adult hippocampal neurogenesis as well as synaptic activity and plasticity in the hippocampus, however the interaction between these processes and the mechanism underlying this regulation remain unclear. In this study, we demonstrate that VGF-derived peptide TLQP-62 specifically enhances the generation of early progenitor cells in nestin-GFP mice. Specifically, TLQP-62 significantly increases the number of Type 2a neural progenitor cells (NPCs) while reducing the number of more differentiated Type 3 cells. The effect of TLQP-62 on proliferation rather than differentiation was confirmed using NPCs in vitro; TLQP-62 but not scrambled peptide PEHN-62 increases proliferation in a cell line as well as in primary progenitors from adult hippocampus. Moreover, TLQP-62 but not scrambled peptide increases Cyclin D mRNA expression. The proliferation of NPCs induced by TLQP-62 requires synaptic activity, in particular through NMDA and metabotropic glutamate receptors. The activation of glutamate receptors by TLQP-62 activation induces phosphorylation of CaMKII through NMDA receptors and protein kinase D through metabotropic glutamate receptor 5 (mGluR5). Furthermore, pharmacological antagonists to CaMKII and PKD inhibit TLQP-62-induced proliferation of NPCs indicating that these signaling molecules downstream of glutamate receptors are essential for the actions of TLQP-62 on neurogenesis. We also show that TLQP-62 gradually activates Brain-Derived Neurotrophic Factor (BDNF)-receptor TrkB in vitro and that Trk signaling is required for TLQP-62-induced proliferation of NPCs. Understanding the precise molecular mechanism of how TLQP-62 influences neurogenesis may reveal mechanisms by which VGF-derived peptides act as antidepressant-like agents.

Indexed as

NeurogenesisSignal TransductionAnimalsBrain-Derived Neurotrophic FactorCell ProliferationGlutamic AcidHippocampusMaleMiceMice, Inbred C57BLNeural Stem CellsNeuropeptidesPeptidesPhosphorylationReceptors, GlutamateReceptor, trkABrain-Derived Neurotrophic FactorGlutamic AcidNeuropeptidesPeptidesReceptors, GlutamateReceptor, trkATLQP62 peptideVGF peptide

Identifiers

PMID24747217
PMCPMC4991619

What OpenQuestion holds

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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.