Ameloblastin Peptides Modulates the Osteogenic Capacity of Human Mesenchymal Stem Cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F17%3A00474937" target="_blank" >RIV/61388963:_____/17:00474937 - isvavai.cz</a>
Result on the web
<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5293776/pdf/fphys-08-00058.pdf" target="_blank" >https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5293776/pdf/fphys-08-00058.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fphys.2017.00058" target="_blank" >10.3389/fphys.2017.00058</a>
Alternative languages
Result language
angličtina
Original language name
Ameloblastin Peptides Modulates the Osteogenic Capacity of Human Mesenchymal Stem Cells
Original language description
During amelogenesis the extracellular enamel matrix protein AMBN is quickly processed into 17 kDa (N-terminus) and 23 kDa (C-terminus) fragments. In particular, alternatively spliced regions derived by exon 5/6 within the N-terminus region are known to be critical in biomineralization. Human mesenchymal stem cells (hMSC) also express and secrete AMBN, but it is unclear if this expression has effects on the hMSC themselves. If, as suggested from previous findings, AMBN act as a signaling molecule, such effects could influence hMSC growth and differentiation, as well as promoting the secretion of other signaling proteins like cytokines and chemokines. If AMBN is found to modulate stem cell behavior and fate, it will impact our understanding on how extracellular matrix molecules can have multiple roles during development ontogenesis, mineralization and healing of mesenchymal tissues. Here we show that synthetic peptides representing ex on 5 promote hMSC proliferation. Interestingly, this effect is inhibited by the application of a 15 aa peptide representing the alternatively spliced start of exon 6. Both peptides also influence gene expression of RUNX2 and osteocalcin, and promote calcium deposition in cultures, indicating a positive influence on the osteogenic capacity of hMSC. We also show that the full-length AMBN-WT and N-terminus region enhance the secretion of RANTES, IP-10, and IL-8. In contrast, the AMBN C-terminus fragment and the exon 5 deleted AMBN (DelEx5) have no detectable effects on any of the parameters investigated. These findings suggest the signaling effect of AMBN is conveyed by processed products, whereas the effect on proliferation is differentially modulated through alternative splicing during gene expression.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30105 - Physiology (including cytology)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in physiology
ISSN
1664-042X
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
Feb 7
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
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UT code for WoS article
000393307100002
EID of the result in the Scopus database
2-s2.0-85014203920