Evidence map›Paper›PMID 19648121›Full record

ArticleThe Journal of biological chemistry2009

Critical role of heparin binding domains of ameloblastin for dental epithelium cell adhesion and ameloblastoma proliferation.

Akira Sonoda, Tsutomu Iwamoto, Takashi Nakamura, Emiko Fukumoto, Keigo Yoshizaki, Aya Yamada, Makiko Arakaki, Hidemitsu Harada, Kazuaki Nonaka, Seiji Nakamura and 2 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.4field-weighted citation impact, top 9% 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

34 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Ameloblastin and its multifunctionality in amelogenesis: A review.Matrix biology : journal of the International Society for Matrix Biology · 2024
    Review
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  18. Article
  19. MSX2 in ameloblast cell fate and activity.Frontiers in physiology · 2014
    Review
  20. Article
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

12 authors at 4 institutions in 2 countries.

Akira SonodaSection of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University, Fukuoka 812-8582, Japan.
Tsutomu Iwamoto
Takashi Nakamura
Emiko Fukumoto
Keigo Yoshizaki
Aya Yamada
Makiko Arakaki
Hidemitsu Harada
Kazuaki Nonaka
Seiji Nakamura
Yoshihiko Yamada
Satoshi Fukumoto
Kyushu University · JPTohoku University · JPNational Institutes of Health · USIwate Medical University · JP

Funding

Oral and Craniofacial Development and DiseaseZ01DE000720 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI YAMADA, YOSHIHIKO · 2007 to 2008
$1.7M
Intramural NIH HHS
6 · The paper itself

Abstract

AMBN (ameloblastin) is an enamel matrix protein that regulates cell adhesion, proliferation, and differentiation of ameloblasts. In AMBN-deficient mice, ameloblasts are detached from the enamel matrix, continue to proliferate, and form a multiple cell layer; often, odontogenic tumors develop in the maxilla with age. However, the mechanism of AMBN functions in these biological processes remains unclear. By using recombinant AMBN proteins, we found that AMBN had heparin binding domains at the C-terminal half and that these domains were critical for AMBN binding to dental epithelial cells. Overexpression of full-length AMBN protein inhibited proliferation of human ameloblastoma AM-1 cells, but overexpression of heparin binding domain-deficient AMBN protein had no inhibitory effect. In full-length AMBN-overexpressing AM-1 cells, the expression of Msx2, which is involved in the dental epithelial progenitor phenotype, was decreased, whereas the expression of cell proliferation inhibitors p21 and p27 was increased. We also found that the expression of enamelin, a marker of differentiated ameloblasts, was induced, suggesting that AMBN promotes odontogenic tumor differentiation. Thus, our results suggest that AMBN promotes cell binding through the heparin binding sites and plays an important role in preventing odontogenic tumor development by suppressing cell proliferation and maintaining differentiation phenotype through Msx2, p21, and p27.

Indexed as

AmeloblastomaAmelogeninAnimalsBinding SitesCell AdhesionCell Line, TumorCell ProliferationChlorocebus aethiopsCOS CellsCyclin-Dependent Kinase Inhibitor p21Dental Enamel ProteinsEpithelial CellsGene Expression Regulation, NeoplasticHeparan SulfateHeparinHomeodomain ProteinsAmbn protein, ratAmelogeninCDKN1A protein, humanCyclin-Dependent Kinase Inhibitor p21Dental Enamel ProteinsHeparan SulfateHeparinHomeodomain ProteinsMSX2 proteintuftelin

Identifiers

PMID19648121
PMCPMC2785645
OpenAlexW2054971453

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.