Evidence map›Paper›PMID 25692548›Full record

ArticleAging cell2015

Cathepsin K knockout alleviates aging-induced cardiac dysfunction.

Yinan Hua, Timothy J Robinson, Yongtao Cao, Guo-Ping Shi, Jun Ren, Sreejayan Nair

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Targeting Cathepsin K to Accelerate Diabetic Wound Healing.ACS pharmacology & translational science · 2025
    Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Cysteinyl cathepsins in cardiovascular diseases.Biochimica et biophysica acta. Proteins and proteomics · 2020
    Review
  13. Article
  14. Article
  15. Cathepsin K: The Action in and Beyond Bone.Frontiers in cell and developmental biology · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

6 authors at 3 institutions in 1 country.

Yinan HuaDivision of Pharmaceutical Sciences & Center for Cardiovascular Research and Alternative Medicine, School of Pharmacy, College of Health Sciences, Laramie, WY, 82071, USA.
Timothy J Robinson
Yongtao Cao
Guo-Ping Shi
Jun Ren
Sreejayan Nair
Brigham and Women's Hospital · USIndiana University of Pennsylvania · USUniversity of Wyoming · US

Funding

Wyoming INBRE Phase 4- Equipment Supplement for x-ray diffractometer for Center for Advanced Scientific InstrumentationP20GM103432 · NIGMS · UNIVERSITY OF WYOMING · PI Robert Scott Seville · 2012 to 2026
$56.8M
Wyoming IDeA Networks of Biomedical Research ExcellenceP20RR016474 · NCRR · UNIVERSITY OF WYOMING · PI LIBERLES, DAVID A. · 2001 to 2011
$28.2M
NCRR NIH HHS P20 RR016474NCRR NIH HHS P20RR016474NIGMS NIH HHS P20 GM103432NIGMS NIH HHS P20GM103432
6 · The paper itself

Abstract

Aging is a major risk factor for cardiovascular disease. It has previously been shown that protein levels of cathepsin K, a lysosomal cysteine protease, are elevated in the failing heart and that genetic ablation of cathepsin K protects against pressure overload-induced cardiac hypertrophy and contractile dysfunction. Here we test the hypothesis that cathepsin K knockout alleviates age-dependent decline in cardiac function. Cardiac geometry, contractile function, intracellular Ca(2+) properties, and cardiomyocyte apoptosis were evaluated using echocardiography, fura-2 technique, immunohistochemistry, Western blot and TUNEL staining, respectively. Aged (24-month-old) mice exhibited significant cardiac remodeling (enlarged chamber size, wall thickness, myocyte cross-sectional area, and fibrosis), decreased cardiac contractility, prolonged relengthening along with compromised intracellular Ca(2+) release compared to young (6-month-old) mice, which were attenuated in the cathepsin K knockout mice. Cellular markers of senescence, including cardiac lipofuscin, p21 and p16, were lower in the aged-cathepsin K knockout mice compared to their wild-type counterpart. Mechanistically, cathepsin K knockout mice attenuated an age-induced increase in cardiomyocyte apoptosis and nuclear translocation of mitochondrial apoptosis-inducing factor (AIF). In cultured H9c2 cells, doxorubicin stimulated premature senescence and apoptosis. Silencing of cathepsin K blocked the doxorubicin-induced translocation of AIF from the mitochondria to the nuclei. Collectively, these results suggest that cathepsin K knockout attenuates age-related decline in cardiac function via suppressing caspase-dependent and caspase-independent apoptosis.

Indexed as

AgingAnimalsApoptosisCardiomegalyCaspasesCathepsin KCells, CulturedMice, Inbred C57BLMice, KnockoutMitochondriaMyocardial ContractionMyocytes, CardiacCaspasesCathepsin Kagingapoptosiscardiac functioncardiac hypertrophycardiac remodelingcathepsin K

Identifiers

PMID25692548
PMCPMC4406663
OpenAlexW2111163650

What OpenQuestion holds

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LicenceCC BY
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.