Evidence map›Paper›PMID 26668376›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Exogenous Hsp70 delays senescence and improves cognitive function in aging mice.

Natalia V Bobkova, Mikhail Evgen'ev, David G Garbuz, Alexei M Kulikov, Alexei Morozov, Alexander Samokhin, Dmitri Velmeshev, Natalia Medvinskaya, Inna Nesterova, Andrew Pollock and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

61 citing papers in PubMed, 112 citations in OpenAlex.

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  16. Molecular hallmarks of ageing in amyotrophic lateral sclerosis.Cellular and molecular life sciences : CMLS · 2024
    Review
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  19. Vascular Ageing: Mechanisms, Risk Factors, and Treatment Strategies.International journal of molecular sciences · 2023
    Review
  20. Article

1 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

11 authors at 5 institutions in 2 countries.

Natalia V BobkovaInstitute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow, 142290, Russia;
Mikhail Evgen'evInstitute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow, 142290, Russia; Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia;
David G GarbuzEngelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia;
Alexei M KulikovInstitute of Developmental Biology, Moscow, 124319, Russia;
Alexei MorozovEngelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia;
Alexander SamokhinInstitute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow, 142290, Russia;
Dmitri VelmeshevInstitute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow, 142290, Russia;
Natalia MedvinskayaInstitute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow, 142290, Russia;
Inna NesterovaInstitute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow, 142290, Russia;
Andrew PollockDepartment of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016; Howard Hughes Medical Institute, New York University School of Medicine, New York, NY 10016.
Evgeny NudlerDepartment of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016; Howard Hughes Medical Institute, New York University School of Medicine, New York, NY 10016 evgeny.nudler@nyumc.org.
Institute of Cell Biophysics · RUEngelhardt Institute of Molecular Biology · RUHoward Hughes Medical Institute · USKoltzov Institute of Developmental Biology · RUNew York University · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Molecular chaperone Heat Shock Protein 70 (Hsp70) plays an important protective role in various neurodegenerative disorders often associated with aging, but its activity and availability in neuronal tissue decrease with age. Here we explored the effects of intranasal administration of exogenous recombinant human Hsp70 (eHsp70) on lifespan and neurological parameters in middle-aged and old mice. Long-term administration of eHsp70 significantly enhanced the lifespan of animals of different age groups. Behavioral assessment after 5 and 9 mo of chronic eHsp70 administration demonstrated improved learning and memory in old mice. Likewise, the investigation of locomotor and exploratory activities after eHsp70 treatment demonstrated a significant therapeutic effect of this chaperone. Measurements of synaptophysin show that eHsp70 treatment in old mice resulted in larger synaptophysin-immunopositive areas and higher neuron density compared with control animals. Furthermore, eHsp70 treatment decreased accumulation of lipofuscin, an aging-related marker, in the brain and enhanced proteasome activity. The potential of eHsp70 intranasal treatment to protect synaptic machinery in old animals offers a unique pharmacological approach for various neurodegenerative disorders associated with human aging.

Indexed as

AgingAnimalsBlotting, WesternBrainCognitionExploratory BehaviorHSP70 Heat-Shock ProteinsHumansLipofuscinLongevityMaleMaze LearningMemoryMice, Inbred StrainsMicroscopy, FluorescenceMotor ActivityHSP70 Heat-Shock ProteinsLipofuscinProteasome Endopeptidase ComplexProtein SubunitsRecombinant ProteinsSynaptophysinagingHsp70memoryproteasometherapy

Identifiers

PMID26668376
PMCPMC4702952
OpenAlexW2270421926

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.