Evidence map›Paper›PMID 34409283›Full record

ArticleMatrix biology plus2021

PRIMUS: Comprehensive proteomics of mouse intervertebral discs that inform novel biology and relevance to human disease modelling.

Mateusz Kudelko, Peikai Chen, Vivian Tam, Ying Zhang, Oi-Yin Kong, Rakesh Sharma, Tiffany Y K Au, Michael Kai-Tsun To, Kathryn S E Cheah, Wilson C W Chan and 1 more

Open access · goldAbstract read
In one paragraph

Article in Matrix biology plus, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

  1. Proteomic signature of human annulus fibrosus and cartilage endplate: divergent matrisomal architectures reveal complementary roles in intervertebral disc homeostasis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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  9. Effects of GDF6 on active protein synthesis by cells of degenerated intervertebral disc.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025
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  12. iScience · 2024
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  20. Frontiers in pain research (Lausanne, Switzerland) · 2022
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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

11 authors at 2 institutions in 2 countries.

Mateusz KudelkoSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Peikai ChenSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Vivian TamSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Ying ZhangSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Oi-Yin KongSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Rakesh SharmaSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Tiffany Y K AuSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Michael Kai-Tsun ToDepartment of Orthopaedics Surgery and Traumatology, The University of Hong Kong -Shenzhen Hospital (HKU-SZH), Shenzhen, China.
Kathryn S E CheahSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Wilson C W ChanSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Danny ChanSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
University of Hong Kong · HKUniversity of Hong Kong - Shenzhen Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mice are commonly used to study intervertebral disc (IVD) biology and related diseases such as IVD degeneration. Discs from both the lumbar and tail regions are used. However, little is known about compartmental characteristics in the different regions, nor their relevance to the human setting, where a functional IVD unit depends on a homeostatic proteome. Here, we address these major gaps through comprehensive proteomic profiling and in-depth analyses of 8-week-old healthy murine discs, followed by comparisons with human. Leveraging on a dataset of over 2,700 proteins from 31 proteomic profiles, we identified key molecular and cellular differences between disc compartments and spine levels, but not gender. The nucleus pulposus (NP) and annulus fibrosus (AF) compartments differ the most, both in matrisome and cellularity contents. Differences in the matrisome are consistent with the fibrous nature required for tensile strength in the AF and hydration property in the NP. Novel findings for the NP cells included an enrichment in cell junction proteins for cell-cell communication (Cdh2, Dsp and Gja1) and osmoregulation (Slc12a2 and Wnk1). In NP cells, we detected heterogeneity of vacuolar organelles; where about half have potential lysosomal function (Vamp3, Copb2, Lamp1/2, Lamtor1), some contain lipid droplets and others with undefined contents. The AF is enriched in proteins for the oxidative stress responses (Sod3 and Clu). Interestingly, mitochondrial proteins are elevated in the lumbar than tail IVDs that may reflect differences in metabolic requirement. Relative to the human, cellular and structural information are conserved for the AF. Even though the NP is more divergent between mouse and human, there are similarities at the level of cell biology. Further, common cross-species markers were identified for both NP (KRT8/19, CD109) and AF (COL12A1). Overall, mouse is a relevant model to study IVD biology, and an understanding of the limitation will facilitate research planning and data interpretation, maximizing the translation of research findings to human IVDs.

Indexed as

AF, annulus fibrosusAnnulus fibrosusDEP, differentially expressed proteinECM, extracellular matrixExtracellular matrixIAF, inner AFIDD, intervertebral disc degenerationIVD, intervertebral discLabel free quantitationMouse intervertebral discNLC, notochordal-like cellNP, nucleus pulposusNucleus pulposusOAF, outer AFProteomics

Identifiers

PMID34409283
PMCPMC8361275
OpenAlexW3186836772

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.