Evidence map›Paper›PMID 16237176›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2005

Modulation of presynaptic plasticity and learning by the H-ras/extracellular signal-regulated kinase/synapsin I signaling pathway.

Steven A Kushner, Ype Elgersma, Geoffrey G Murphy, Dick Jaarsma, Geeske M van Woerden, Mohammad Reza Hojjati, Yijun Cui, Janelle C LeBoutillier, Diano F Marrone, Esther S Choi and 4 more

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 103 papers.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed
3.5field-weighted citation impact, top 6% 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

103 citing papers in PubMed, 188 citations in OpenAlex.

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  7. A specific negatively charged sequence confers intramolecular regulation on Munc13-1 function in synaptic exocytosis.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  10. Rasopathy-Associated Mutation Ptpn11Cellular and molecular neurobiology · 2024
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  15. Article
  16. Review
  17. Review
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  19. Article
  20. Article

43 more citing papers are in PubMed but not listed here.

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

14 authors at 4 institutions in 2 countries.

Steven A KushnerDepartment of Neurobiology, Brain Research Institute, University of California, Los Angeles, California 90095-1761, USA.
Ype Elgersma
Geoffrey G Murphy
Dick Jaarsma
Geeske M van Woerden
Mohammad Reza Hojjati
Yijun Cui
Janelle C LeBoutillier
Diano F Marrone
Esther S Choi
Chris I De Zeeuw
Ted L Petit
Lucas Pozzo-Miller
Alcino J Silva
University of California, Los Angeles · USThe Scarborough Hospital · CAUniversity of Alabama at Birmingham · USUniversity of Toronto · CA

Funding

UCLA-Caltech Medical Scientist Training ProgramT32GM008042 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI AJIJOLA, OLUJIMI A, DAWSON, DAVID WAYNE · 1985 to 2023
$29.9M
ACTIONS OF BDNF ON CA2+ SIGNALS IN HIPPOCAMPAL NEURONSR01NS040593 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI POZZO-MILLER, LUCAS D · 2000 to 2010
$2.8M
MECHANISMS FOR NEUROLOGICAL DYSFUNCTION IN NFIR01NS038480 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SILVA, ALCINO J. · 1998 to 2007
$2.4M
Role of Hippocampal CA1 CaMKII in Learning and MemoryF30MH063541 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KUSHNER, STEVEN A · 2001 to 2002
$42k
NIGMS NIH HHS GM08042NIGMS NIH HHS T32 GM008042NIMH NIH HHS F30 MH063541NIMH NIH HHS MH063541NINDS NIH HHS R01 NS038480NINDS NIH HHS R01 NS040593
6 · The paper itself

Abstract

Molecular and cellular studies of the mechanisms underlying mammalian learning and memory have focused almost exclusively on postsynaptic function. We now reveal an experience-dependent presynaptic mechanism that modulates learning and synaptic plasticity in mice. Consistent with a presynaptic function for endogenous H-ras/extracellular signal-regulated kinase (ERK) signaling, we observed that, under normal physiologic conditions in wild-type mice, hippocampus-dependent learning stimulated the ERK-dependent phosphorylation of synapsin I, and MEK (MAP kinase kinase)/ERK inhibition selectively decreased the frequency of miniature EPSCs. By generating transgenic mice expressing a constitutively active form of H-ras (H-rasG12V), which is abundantly localized in axon terminals, we were able to increase the ERK-dependent phosphorylation of synapsin I. This resulted in several presynaptic changes, including a higher density of docked neurotransmitter vesicles in glutamatergic terminals, an increased frequency of miniature EPSCs, and increased paired-pulse facilitation. In addition, we observed facilitated neurotransmitter release selectively during high-frequency activity with consequent increases in long-term potentiation. Moreover, these mice showed dramatic enhancements in hippocampus-dependent learning. Importantly, deletion of synapsin I, an exclusively presynaptic protein, blocked the enhancements of learning, presynaptic plasticity, and long-term potentiation. Together with previous invertebrate studies, these results demonstrate that presynaptic plasticity represents an important evolutionarily conserved mechanism for modulating learning and memory.

Indexed as

AnimalsExtracellular Signal-Regulated MAP KinasesHumansLearningMAP Kinase Signaling SystemMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicNeuronal PlasticityPresynaptic TerminalsProto-Oncogene Proteins p21(ras)SynapsinsExtracellular Signal-Regulated MAP KinasesHRAS protein, humanProto-Oncogene Proteins p21(ras)Synapsins

Identifiers

PMID16237176
PMCPMC2802213
OpenAlexW2164938664

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.