Evidence map›Paper›PMID 35383146›Full record

ArticleBone research2022

Inhibition of Cdk5 increases osteoblast differentiation and bone mass and improves fracture healing.

Mubashir Ahmad, Benjamin Thilo Krüger, Torsten Kroll, Sabine Vettorazzi, Ann-Kristin Dorn, Florian Mengele, Sooyeon Lee, Sayantan Nandi, Dilay Yilmaz, Miriam Stolz and 8 more

Open access · goldAbstract read
In one paragraph

Article in Bone research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Engineered bone-targetingMaterials today. Bio · 2026
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  4. Hydrogel-WrappedMaterials today. Bio · 2025
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  8. Review
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  10. Article
  11. Article
  12. Article
  13. Article
  14. Why Animal Experiments Are Still Indispensable in Bone Research: A Statement by the European Calcified Tissue Society.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2023
    Review
  15. 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

18 authors at 5 institutions in 3 countries.

Mubashir AhmadInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.ORCID http://orcid.org/0000-0001-9012-4039
Benjamin Thilo KrügerInstitute of Orthopedic Research and Biomechanics, Ulm University, Helmholtzstrasse 14, 89081, Ulm, Germany.
Torsten KrollLeibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstrasse 11, D-07745, Jena, Germany.
Sabine VettorazziInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Ann-Kristin DornInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Florian MengelePraxisklinik für Orthopädie, Unfall- und Neurochirurgie Prof. Bischoff/Dr. Spies/Dr. Mengele, 89231, Neu-Ulm, Germany.
Sooyeon LeeInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.ORCID http://orcid.org/0000-0001-6244-4975
Sayantan NandiInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Dilay YilmazInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Miriam StolzInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Naveen Kumar TanguduInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
David Carro VázquezInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Johanna PachmayrParacelsus Medizinische Privatuniverstät, Institute of Pharmacy, Strubergasse 21, 5020, Salzburg, Austria.
Ion Cristian CirsteaInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.ORCID http://orcid.org/0000-0003-3204-1598
Maja Vujic SpasicInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany.
Aspasia PloubidouLeibniz Institute on Aging - Fritz Lipmann Institute (FLI), Beutenbergstrasse 11, D-07745, Jena, Germany.
Anita IgnatiusInstitute of Orthopedic Research and Biomechanics, Ulm University, Helmholtzstrasse 14, 89081, Ulm, Germany.
Jan TuckermannInstitute of Comparative Molecular Endocrinology (CME), Ulm University, Helmholtzstrasse 8/1, 89081, Ulm, Germany. jan.tuckermann@uni-ulm.de.ORCID http://orcid.org/0000-0003-3691-275X
Helmholtz-Institute Ulm · DELeibniz Institute on Aging - Fritz Lipmann Institute (FLI) · DEParacelsus Medical University · ATPraxisklinik für Orthopädie, Unfall- und Neurochirurgie · DEUPMC Hillman Cancer Center · US

Funding

Deutsche Forschungsgemeinschaft (German Research Foundation) CRC1149 (INST 40/492-1)Deutsche Forschungsgemeinschaft (German Research Foundation) CRC1149 (INST 40/492-2)
6 · The paper itself

Abstract

Identification of regulators of osteoblastogenesis that can be pharmacologically targeted is a major goal in combating osteoporosis, a common disease of the elderly population. Here, unbiased kinome RNAi screening in primary murine osteoblasts identified cyclin-dependent kinase 5 (Cdk5) as a suppressor of osteoblast differentiation in both murine and human preosteoblastic cells. Cdk5 knockdown by siRNA, genetic deletion using the Cre-loxP system, or inhibition with the small molecule roscovitine enhanced osteoblastogenesis in vitro. Roscovitine treatment significantly enhanced bone mass by increasing osteoblastogenesis and improved fracture healing in mice. Mechanistically, downregulation of Cdk5 expression increased Erk phosphorylation, resulting in enhanced osteoblast-specific gene expression. Notably, simultaneous Cdk5 and Erk depletion abrogated the osteoblastogenesis conferred by Cdk5 depletion alone, suggesting that Cdk5 regulates osteoblast differentiation through MAPK pathway modulation. We conclude that Cdk5 is a potential therapeutic target to treat osteoporosis and improve fracture healing.

Identifiers

PMID35383146
PMCPMC8983726
OpenAlexW4224320183

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.