Evidence map›Paper›PMID 31290579›Full record

ArticleAging cell2019

Chondrocyte-like nested cells in the aged intervertebral disc are late-stage nucleus pulposus cells.

Sarthak Mohanty, Robert Pinelli, Paul Pricop, Todd J Albert, Chitra Lekha Dahia

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
4.8field-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

56 citing papers in PubMed, 67 citations in OpenAlex.

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  14. Aging · 2025
    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

5 authors at 1 institution in 1 country.

Sarthak MohantyHospital for Special Surgery, New York, NY, USA.
Robert PinelliHospital for Special Surgery, New York, NY, USA.
Paul PricopHospital for Special Surgery, New York, NY, USA.
Todd J AlbertHospital for Special Surgery, New York, NY, USA.
Chitra Lekha DahiaHospital for Special Surgery, New York, NY, USA.ORCID 0000-0003-3683-9791
Hospital for Special Surgery · US

Funding

A Wnt/Shh signaling loop controls intervertebral disc growth and differentiationR01AR065530 · NIAMS · HOSPITAL FOR SPECIAL SURGERY · PI DAHIA, CHITRA L · 2014 to 2018
$1.9M
Gerstner FoundationNIAMS NIH HHS R01 AR065530S & L Marx Foundation
6 · The paper itself

Abstract

Aging is a major risk factor of intervertebral disc degeneration and a leading cause of back pain. Pathological changes associated with disc degeneration include the absence of large, vacuolated and reticular-shaped nucleus pulposus cells, and appearance of smaller cells nested in lacunae. These small nested cells are conventionally described as chondrocyte-like cells; however, their origin in the intervertebral disc is unknown. Here, using a genetic mouse model and a fate mapping strategy, we have found that the chondrocyte-like cells in degenerating intervertebral discs are, in fact, nucleus pulposus cells. With aging, the nucleus pulposus cells fuse their cell membranes to form the nested lacunae. Next, we characterized the expression of sonic hedgehog (SHH), crucial for the maintenance of nucleus pulposus cells, and found that as intervertebral discs age and degenerate, expression of SHH and its target Brachyury is gradually lost. The results indicate that the chondrocyte-like phenotype represents a terminal stage of differentiation preceding loss of nucleus pulposus cells and disc collapse.

Indexed as

Cellular SenescenceAnimalsCell DifferentiationChondrocytesHumansIntervertebral DiscNucleus PulposusPhenotypeBrachyurychondrocyte-like cellsfate mappingKrt19nucleus pulposusShhtrans-differentiation

Identifiers

PMID31290579
PMCPMC6718620
OpenAlexW2959917955

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.