Evidence map›Paper›PMID 36418293›Full record

ArticleNature communications2022

Enhanced activity of Alzheimer disease-associated variant of protein kinase Cα drives cognitive decline in a mouse model.

Gema Lordén, Jacob M Wozniak, Kim Doré, Lara E Dozier, Chelsea Cates-Gatto, Gentry N Patrick, David J Gonzalez, Amanda J Roberts, Rudolph E Tanzi, Alexandra C Newton

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.5field-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

26 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
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  3. Alzheimer's Pathology Enhances Excitatory Synaptic Input and Integration in VTA Dopamine Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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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

10 authors at 4 institutions in 1 country.

Gema LordénDepartment of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA.
Jacob M WozniakDepartment of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA.
Kim DoréCenter for Neural Circuits and Behavior, Department of Neurosciences, University of California San Diego, La Jolla, CA, 92093, USA.
Lara E DozierSection of Neurobiology. Division of Biological sciences, University of California San Diego, La Jolla, CA, 92093, USA.
Chelsea Cates-GattoAnimal Models Core Facility, The Scripps Research Institute, La Jolla, CA, 92037, USA.
Gentry N PatrickSection of Neurobiology. Division of Biological sciences, University of California San Diego, La Jolla, CA, 92093, USA.
David J GonzalezDepartment of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA.
Amanda J RobertsAnimal Models Core Facility, The Scripps Research Institute, La Jolla, CA, 92037, USA.
Rudolph E TanziGenetics and Aging Research Unit, McCance Center for Brain Health, Department of Neurology, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA.ORCID 0000-0002-7032-1454
Alexandra C NewtonDepartment of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA. anewton@health.ucsd.edu.ORCID 0000-0002-2906-3705
University of California San Diego · USScripps Research Institute · USHarvard University · USUC San Diego Health System · US

Funding

UCSD Shiley-Marcos Alzheimer's Disease Research Center P30P30AG062429 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DOUGLAS R GALASKO · 2019 to 2026
$34.9M
GRADUATE TRAINING IN CELLULAR &MOLECULAR PHARMACOLOGYT32GM007752 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BROWN, JOAN HELLER, HANDEL, TRACY M · 1985 to 2023
$13.5M
Molecular Mechanisms of Cell SignalingR35GM122523 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ALEXANDRA C. NEWTON · 2017 to 2026
$6.7M
Rheumatic Diseases Research Training GrantT32AR064194 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GARY S FIRESTEIN, Monica Guma · 2013 to 2026
$3.8M
UCSD Leading the Advancement of Underrepresented Neuroscientists for Change (LAUNCH) Faculty Development ProgramR25NS117367 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Victoria B Risbrough, Joann Trejo · 2020 to 2026
$1.6M
Increasing synaptic PSD-95, a neuroprotection approach against Alzheimer's diseaseRF1AG067049 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DORE, KIM BOHEMIE · 2021 to 2021
$1.4M
NIAMS NIH HHS T32 AR064194NIA NIH HHS P30 AG062429NIA NIH HHS RF1 AG067049NIGMS NIH HHS R35 GM122523NIGMS NIH HHS T32 GM007752NINDS NIH HHS R25 NS117367
6 · The paper itself

Abstract

Exquisitely tuned activity of protein kinase C (PKC) isozymes is essential to maintaining cellular homeostasis. Whereas loss-of-function mutations are generally associated with cancer, gain-of-function variants in one isozyme, PKCα, are associated with Alzheimer's disease (AD). Here we show that the enhanced activity of one variant, PKCα M489V, is sufficient to rewire the brain phosphoproteome, drive synaptic degeneration, and impair cognition in a mouse model. This variant causes a modest 30% increase in catalytic activity without altering on/off activation dynamics or stability, underscoring that enhanced catalytic activity is sufficient to drive the biochemical, cellular, and ultimately cognitive effects observed. Analysis of hippocampal neurons from PKCα M489V mice reveals enhanced amyloid-β-induced synaptic depression and reduced spine density compared to wild-type mice. Behavioral studies reveal that this mutation alone is sufficient to impair cognition, and, when coupled to a mouse model of AD, further accelerates cognitive decline. The druggability of protein kinases positions PKCα as a promising therapeutic target in AD.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAmyloid beta-PeptidesAnimalsDisease Models, AnimalIsoenzymesMiceProtein Kinase C-alphaAmyloid beta-PeptidesIsoenzymesProtein Kinase C-alpha

Identifiers

PMID36418293
PMCPMC9684486
OpenAlexW4309918435

What Socratic holds

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LicenceCC BY
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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 Socratic graph.