Evidence map›Paper›PMID 29425696›Full record

ReviewMatrix biology : journal of the International Society for Matrix Biology2019

The pericellular hyaluronan of articular chondrocytes.

Warren Knudson, Shinya Ishizuka, Kenya Terabe, Emily B Askew, Cheryl B Knudson

Open access · greenAbstract readReview
In one paragraph

Review in Matrix biology : journal of the International Society for Matrix Biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

60 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Nascent Extracellular Matrix Converts Biomaterial Cues into Cell Fate Decisions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  3. Review
  4. Cartilage-SpecificBiomedicines · 2026
    Article
  5. Article
  6. Article
  7. Low ozone concentrations promoteEuropean journal of histochemistry : EJH · 2026
    Article
  8. Article
  9. Review
  10. Insights into substrate binding and utilization by hyaluronan synthase.bioRxiv : the preprint server for biology · 2025
    Article
  11. Article
  12. Article
  13. ABiomaterials · 2025
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Review
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 2 institutions in 2 countries.

Warren KnudsonEast Carolina University, Greenville, NC, USA. Electronic address: knudsonw@ecu.edu.
Shinya IshizukaNagoya University Graduate School of Medicine, Nagoya, Japan.
Kenya TerabeNagoya University Graduate School of Medicine, Nagoya, Japan.
Emily B AskewEast Carolina University, Greenville, NC, USA.
Cheryl B KnudsonEast Carolina University, Greenville, NC, USA.
East Carolina University · USNagoya University · JP

Funding

SPECIALIZED CENTER OF RESEARCH IN OSTEOARTHRITISP50AR039239 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI OEGEMA, THEODORE RICHARD · 1987 to 2007
$8.5M
HYALURONAN-CELL INTERACTIONS IN CARTILAGER01AR039507 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI KNUDSON, CHERYL B · 1998 to 2013
$3.1M
CD44 MEDIATED CATABOLISM OF HYALURONAN BY CHONDROCYTESR01AR043384 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI KNUDSON, WARREN · 1996 to 2009
$2.7M
Transgene enhancement of hyaluronan in human osteoarthritic cartilageR21AR066581 · NIAMS · EAST CAROLINA UNIVERSITY · PI KNUDSON, WARREN · 2014 to 2015
$357k
Altering the intracellular flux in UDP-hexose pools provides chondroprotectionR21AR072682 · NIAMS · EAST CAROLINA UNIVERSITY · PI KNUDSON, WARREN · 2017 to 2018
$357k
NIAMS NIH HHS P50 AR039239NIAMS NIH HHS R01 AR039507NIAMS NIH HHS R01 AR043384NIAMS NIH HHS R21 AR066581NIAMS NIH HHS R21 AR072682
6 · The paper itself

Abstract

The story of hyaluronan in articular cartilage, pericellular hyaluronan in particular, essentially is also the story of aggrecan. Without properly tethered aggrecan, the load bearing function of cartilage is compromised. The anchorage of aggrecan to the cell surface only occurs due to the binding of aggrecan to hyaluronan-with hyaluronan tethered either to a hyaluronan synthase or by multivalent binding to CD44. In this review, details of hyaluronan synthesis are discussed including how HAS2 production of hyaluronan is necessary for normal chondrocyte development and matrix assembly, how an abundance or deficit of pericellular hyaluronan alters chondrocyte metabolism, and whether hyaluronan size matters or changes with aging or disease. The biomechanical role and matrix assembly function of hyaluronan in addition to the functions of hyaluronidases are discussed. The turnover of hyaluronan is considered including mechanisms by which its turnover, at least in part, is mediated by endocytosis by chondrocytes and regulated by aggrecan degradation. Differences between turnover and clearance of newly synthesized hyaluronan and aggrecan versus the half-life of hyaluronan remaining within the inter-territorial matrix of cartilage are discussed. The release of neutral pH-acting hyaluronidase activity remains one unanswered question concerning the loss of cartilage hyaluronan in osteoarthritis. Signaling events driven by changes in hyaluronan-chondrocyte interactions may involve a chaperone function of CD44 with other receptors/cofactors as well as the changes in hyaluronan production functioning as a metabolic rheostat.

Indexed as

AnimalsChondrocytesEndocytosisExtracellular MatrixHalf-LifeHumansHyaluronan SynthasesHyaluronic AcidHyaluronan SynthasesHyaluronic AcidAggrecanCartilageChondrocytesHyaluronanHyaluronidase

Identifiers

PMID29425696
PMCPMC6078830
OpenAlexW2794062987

What Socratic 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 Socratic graph.