Evidence map›Paper›PMID 34083809›Full record

ReviewNature reviews. Rheumatology2021

The role of HIF proteins in maintaining the metabolic health of the intervertebral disc.

Elizabeth S Silagi, Ernestina Schipani, Irving M Shapiro, Makarand V Risbud

Open access · greenAbstract readReview
In one paragraph

Review in Nature reviews. Rheumatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
6.3field-weighted citation impact, top 2% 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

69 citing papers in PubMed, 102 citations in OpenAlex.

  1. Article
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  17. mFrontiers in cell and developmental biology · 2026
    Review
  18. Review
  19. Stress-response exhaustion in intervertebral disc degeneration.Frontiers in cell and developmental biology · 2026
    Review
  20. Review

9 more citing papers are in PubMed but not listed here.

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

4 authors at 3 institutions in 1 country.

Elizabeth S SilagiDepartment of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA.
Ernestina SchipaniDepartment of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Irving M ShapiroGraduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, PA, USA.
Makarand V RisbudGraduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, PA, USA. makarand.risbud@jefferson.edu.ORCID 0000-0003-3913-0649
Thomas Jefferson University · USHarvard University · USUniversity of Pennsylvania · US

Funding

Role of HIF-1 in Intervertebral Disc FunctionR01AR055655 · NIAMS · THOMAS JEFFERSON UNIVERSITY · PI RISBUD, MAKARAND V · 2008 to 2023
$6.1M
Training in Tissue Engineering and Regenerative MedicineT32AR052273 · NIAMS · THOMAS JEFFERSON UNIVERSITY · PI SHAPIRO, IRVING M · 2006 to 2020
$3.3M
Pathogenesis of Inflammation-driven Intervertebral Disc Herniation: The Role of Syndecan 4R01AR074813 · NIAMS · THOMAS JEFFERSON UNIVERSITY · PI RISBUD, MAKARAND V · 2019 to 2023
$2.3M
Mitochondria and TFAM in Osteoblast BiologyR01AR074079 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI SCHIPANI, ERNESTINA · 2019 to 2024
$2.0M
HIF-2alpha, a Novel Regulator of OsteoblastogenesisR01AR073022 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI SCHIPANI, ERNESTINA · 2019 to 2023
$1.7M
NIAMS NIH HHS R01 AR055655NIAMS NIH HHS R01 AR073022NIAMS NIH HHS R01 AR074079NIAMS NIH HHS R01 AR074813NIAMS NIH HHS T32 AR052273
6 · The paper itself

Abstract

The physiologically hypoxic intervertebral disc and cartilage rely on the hypoxia-inducible factor (HIF) family of transcription factors to mediate cellular responses to changes in oxygen tension. During homeostatic development, oxygen-dependent prolyl hydroxylases, circadian clock proteins and metabolic intermediates control the activities of HIF1 and HIF2 in these tissues. Mechanistically, HIF1 is the master regulator of glycolytic metabolism and cytosolic lactate levels. In addition, HIF1 regulates mitochondrial metabolism by promoting flux through the tricarboxylic acid cycle, inhibiting downsteam oxidative phosphorylation and controlling mitochondrial health through modulation of the mitophagic pathway. Accumulation of metabolic intermediates from HIF-dependent processes contribute to intracellular pH regulation in the disc and cartilage. Namely, to prevent changes in intracellular pH that could lead to cell death, HIF1 orchestrates a bicarbonate buffering system in the disc, controlled by carbonic anhydrase 9 (CA9) and CA12, sodium bicarbonate cotransporters and an intracellular H

Indexed as

AnimalsBasic Helix-Loop-Helix ProteinsEndothelial PAS Domain-Containing Protein 1HumansHypoxiaHypoxia-Inducible Factor 1Intervertebral DiscBasic Helix-Loop-Helix ProteinsEndothelial PAS Domain-Containing Protein 1Hypoxia-Inducible Factor 1

Identifiers

PMID34083809
PMCPMC10019070
OpenAlexW3164901619

What OpenQuestion holds

Textmetadata
LicenceTDM
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.