Evidence map›Paper›PMID 24072097›Full record

ArticleJournal of dental research2013

M180 amelogenin processed by MMP20 is sufficient for decussating murine enamel.

M K Pugach, C Suggs, Y Li, J T Wright, A B Kulkarni, J D Bartlett, C W Gibson

Open access · greenAbstract read
In one paragraph

Article in Journal of dental research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

14 citing papers in PubMed, 19 citations in OpenAlex.

  1. Integrative multi-omics and bioinformatic analysis ofThe Japanese dental science review · 2026
    Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Enamel biomimetics-fiction or future of dentistry.International journal of oral science · 2019
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Truncated amelogenin and LRAP transgenes improve Amelx null mouse enamel.Matrix biology : journal of the International Society for Matrix Biology
    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

7 authors at 3 institutions in 1 country.

M K PugachDepartment of Anatomy and Cell Biology, University of Pennsylvania School of Dental Medicine, 240 S. 40th Street, Philadelphia, PA 19104-6030, USA.
C Suggs
Y Li
J T Wright
A B Kulkarni
J D Bartlett
C W Gibson
University of Pennsylvania · USUniversity of North Carolina at Chapel Hill · USNational Institute of Dental and Craniofacial Research · US

Funding

Molecular Roles of Cdk5 in Neuronal Functions and Pain SignalingZIADE000664 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI KULKARNI, ASHOK · 2009 to 2025
$20.4M
Enamelysin Processing Mechanisms in AmelogenesisR01DE016276 · NIDCR · OHIO STATE UNIVERSITY · PI BARTLETT, JOHN D · 2006 to 2014
$4.4M
ENAMEL MINERAL FORMATION DURING MURINE ODONTOGENESISR01DE011089 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI GIBSON, CAROLYN · 1995 to 2012
$3.9M
The Role of LRAP in Enamel Mineral FormationR00DE022624 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI PUGACH, MEGAN KARDON · 2013 to 2015
$725k
Enamelysin Processing Mechanisms in AmelogenesisR56DE016276 · NIDCR · ADA FORSYTH INSTITUTE, INC. · PI BARTLETT, JOHN D · 2011 to 2011
$498k
The Role of the C-terminus of Amelogenen in Enamel StructureF32DE019968 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI PUGACH, MEGAN KARDON · 2009 to 2011
$148k
The Role of LRAP in Enamel Mineral FormationK99DE022624 · NIDCR · UNIVERSITY OF PENNSYLVANIA · PI PUGACH, MEGAN KARDON · 2012 to 2012
$77k
NIDCR NIH HHS DE011089NIDCR NIH HHS DE016276NIDCR NIH HHS DE019968NIDCR NIH HHS DE022624NIDCR NIH HHS F32 DE019968NIDCR NIH HHS K99 DE022624NIDCR NIH HHS R00 DE022624NIDCR NIH HHS R01 DE011089NIDCR NIH HHS R01 DE016276NIDCR NIH HHS R56 DE016276
6 · The paper itself

Abstract

Amelogenin (AMELX) and matrix metalloproteinase-20 (MMP20) are essential for proper enamel development. Amelx and Mmp20 mutations cause amelogenesis imperfecta. MMP20, a protease secreted by ameloblasts, is responsible for processing enamel proteins, including AMELX, during the secretory stage of enamel formation. Of at least 16 different amelogenin splice products, the most abundant isoform found in murine ameloblasts and developing enamel is the M180 protein. To understand the role of MMP20 processing of M180 AMELX, we generated AmelxKO/Mmp20KO (DKO) mice with an amelogenin (M180Tg) transgene. We analyzed the enamel phenotype by SEM to determine enamel structure and thickness, µCT, and by nanoindentation to quantify enamel mechanical properties. M180Tg/DKO mouse enamel had 37% of the hardness of M180Tg/AmelxKO teeth and demonstrated a complete lack of normal prismatic architecture. Although molar enamel of M180Tg/AmelxKO mice was thinner than WT, it had similar mechanical properties and decussating enamel prisms, which were abolished by the loss of MMP20 in the M180Tg/DKO mice. Retention of the C-terminus or complete lack of this domain is unable to rescue amelogenin null enamel. We conclude that among amelogenins, M180 alone is sufficient for normal enamel mechanical properties and prism patterns, but that additional amelogenin splice products are required to restore enamel thickness.

Indexed as

AmeloblastsAmelogenesisAmelogeninAnimalsBiomechanical PhenomenaDental EnamelElastic ModulusGene DeletionGenotypeHardnessMatrix Metalloproteinase 20MiceMice, KnockoutMice, TransgenicMicroscopy, Electron, ScanningPhenotypeAmelogeninAmelx protein, mouseMatrix Metalloproteinase 20Mmp20 protein, mouseProtein Isoformsameloblastsamelogenesisimperfectaknockout mousematrix metalloproteinase-20tooth calcificationtransgenic mouse

Identifiers

PMID24072097
PMCPMC3834654
OpenAlexW2100750826

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.