Evidence map›Paper›PMID 22072421›Full record

ArticleHistochemistry and cell biology2012

Role of CD44 in the organization of keratinocyte pericellular hyaluronan.

Sanna Pasonen-Seppänen, Juha M T Hyttinen, Kirsi Rilla, Tiina Jokela, Paul W Noble, Markku Tammi, Raija Tammi

Abstract read
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In one paragraph

Article in Histochemistry and cell biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-weighted citation impact, top 22% 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

18 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. CD44 signaling in skin wound healing and regeneration.Journal of translational medicine · 2025
    Review
  3. Article
  4. Review
  5. Deletion ofJID innovations : skin science from molecules to population health · 2021
    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

7 authors at 2 institutions in 2 countries.

Sanna Pasonen-SeppänenDepartment of Anatomy, Institute of Biomedicine, University of Eastern Finland, P.O.B. 1627, 70211 Kuopio, Finland. Sanna.Pasonen@uef.fi
Juha M T Hyttinen
Kirsi Rilla
Tiina Jokela
Paul W Noble
Markku Tammi
Raija Tammi
University of Eastern Finland · FIDuke University · US

Funding

MECHANISMS OF MACROPHAGE ACTIVATION IN LUNG INFLAMMATIONR01HL060539 · NHLBI · YALE UNIVERSITY · PI NOBLE, PAUL WESLEY · 1997 to 2019
$6.5M
NHLBI NIH HHS R01 HL060539
6 · The paper itself

Abstract

CD44 is a ubiquitous cell surface glycoprotein, involved in important cellular functions including cell adhesion, migration, and modulation of signals from cell surface receptors. While most of these CD44 functions are supposed to involve hyaluronan, relatively little is known about the contribution of CD44 to hyaluronan maintenance and organization on cell surface, and the role of CD44 in hyaluronan synthesis and catabolism. Blocking hyaluronan binding either by CD44 antibodies, CD44-siRNA or hyaluronan decasaccharides (but not hexasaccharides) removed most of the hyaluronan from the surfaces of both human (HaCaT) and mouse keratinocytes, resembling results on cells from CD44⁻/⁻ animals. In vitro, compromising CD44 function led to reduced and increased amounts, respectively, of intracellular and culture medium hyaluronan, and specific accumulation below the cells. In vivo, CD44-deficiency caused no marked differences in hyaluronan staining intensity or localization in the fetal skin or in adult ear skin, while tail epidermis showed a slight reduction in epidermal hyaluronan staining intensity. However, CD44-deficient tail skin challenged with retinoic acid or tape stripping revealed diffuse accumulation of hyaluronan in the superficial epidermal layers, normally negative for hyaluronan. Our data indicate that CD44 retains hyaluronan in the keratinocyte pericellular matrix, a fact that has not been shown unambiguously before, and that hyaluronan abundance in the absence of CD44 can result in hyaluronan trapping in abnormal locations possibly interfering there with normal differentiation and epidermal barrier function.

Indexed as

AnimalsCells, CulturedExtracellular MatrixFibroblastsHumansHyaluronan ReceptorsHyaluronic AcidImmunohistochemistryKeratinocytesMiceMice, Inbred C57BLNIH 3T3 CellsReal-Time Polymerase Chain ReactionCD44 protein, humanCd44 protein, mouseHyaluronan ReceptorsHyaluronic Acid

Identifiers

PMID22072421
OpenAlexW1980379415

What OpenQuestion holds

Textmetadata
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.