Evidence map›Paper›PMID 31303501›Full record

ArticleEBioMedicine2019

Paricalcitol accelerates BACE1 lysosomal degradation and inhibits calpain-1 dependent neuronal loss in APP/PS1 transgenic mice.

Yong-Gang Fan, Tian Guo, Xiao-Ran Han, Jun-Lin Liu, Yu-Ting Cai, Han Xue, Xue-Shi Huang, Yan-Chun Li, Zhan-You Wang, Chuang Guo

Abstract read
In one paragraph

Article in EBioMedicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–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

10 citing papers in PubMed.

  1. Article
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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.

Yong-Gang FanCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Tian GuoCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Xiao-Ran HanCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Jun-Lin LiuCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Yu-Ting CaiCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Han XueCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Xue-Shi HuangCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China.
Yan-Chun LiDepartment of Medicine, the University of Chicago, Chicago, IL 60637, USA.
Zhan-You WangCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China; Institute of Health Sciences, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang 110122, China. Electronic address: wangzy@mail.neu.edu.cn.
Chuang GuoCollege of Life and Health Sciences, Northeastern University, NO.195, Chuangxin Road, Hunnan District, Shenyang 110169, China. Electronic address: guoc@mail.neu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies have revealed that vitamin D deficiency may increase the risk of Alzheimer's disease, and vitamin D supplementation may be effective strategy to ameliorate the neurodegenerative process in Alzheimer's disease patients. Paricalcitol (PAL), a low-calcemic vitamin D receptor agonist, is clinically used to treat secondary hyperparathyroidism. However, the potential application of PAL for treating neurodegenerative disorders remains unexplored.

methodsThe APP/PS1 mice were intraperitoneally injected with PAL or vehicle every other day for 15 weeks. The β-amyloid (Aβ) production was confirmed using immunostaining and enzyme linked immunosorbent assay. The underlying mechanism was verified by western blot and immunostaining in vivo and in vitro.

findingsLong-term PAL treatment clearly reduced β-amyloid (Aβ) generation and neuronal loss in APP/PS1 transgenic mouse brains. PAL stimulated the expression of low-density lipoprotein receptor-related protein 1 (LRP1) possibly through inhibiting sterol regulatory element binding protein-2 (SREBP2); PAL also promoted LRP1-mediated β-site APP cleavage enzyme 1 (BACE1) transport to late endosomes, thus increasing the lysosomal degradation of BACE1. Furthermore, PAL diminished 8-hydroxyguanosine (8-OHdG) generation in neuronal mitochondria via enhancing base excision repair (BER), resulting in the attenuation of calpain-1-mediated neuronal loss.

interpretationThe present data demonstrate that PAL can reduce Aβ generation through accelerating BACE1 lysosomal degradation and can inhibit neuronal loss through suppressing mitochondrial 8-OHdG generation. Hence, PAL might be a promising agent for treating Alzheimer's disease. FUND: This study was financially supported by the Natural Science Foundation of China (U1608282).

Indexed as

8-Hydroxy-2'-DeoxyguanosineAlzheimer DiseaseAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAnimalsAspartic Acid EndopeptidasesBrainCalpainDisease Models, AnimalErgocalciferolsGene Expression RegulationHumansLow Density Lipoprotein Receptor-Related Protein-1LysosomesMiceMice, Transgenic8-Hydroxy-2'-DeoxyguanosineAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBace1 protein, mouseCalpainCapn1 protein, mouseErgocalciferolsLow Density Lipoprotein Receptor-Related Protein-1LRP1 protein, humanOligopeptidesparicalcitolPresenilin-1PS1 antigen8-hydroxyguanosineAlzheimer's diseaseLysosomal degradationNeuronal lossParicalcitolβ-Site APP cleavage enzyme 1

Identifiers

PMID31303501
PMCPMC6642335

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.