Cargando…
EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1
Background: Electrolytically-generated acid functional water (FW) is obtained by electrolyzing low concentrations of saline. Although it has been widely used in clinical practice with various purposes, the underlying mechanisms of action involved have not been fully elucidated so far. We used the hu...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Ivyspring International Publisher
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666549/ https://www.ncbi.nlm.nih.gov/pubmed/29104472 http://dx.doi.org/10.7150/ijms.20387 |
_version_ | 1783275340096864256 |
---|---|
author | Saiki, Akari Motoyoshi, Mitsuru Motozawa, Keiko Okamura, Teinosuke Ueki, Kousuke Shimizu, Noriyoshi Asano, Masatake |
author_facet | Saiki, Akari Motoyoshi, Mitsuru Motozawa, Keiko Okamura, Teinosuke Ueki, Kousuke Shimizu, Noriyoshi Asano, Masatake |
author_sort | Saiki, Akari |
collection | PubMed |
description | Background: Electrolytically-generated acid functional water (FW) is obtained by electrolyzing low concentrations of saline. Although it has been widely used in clinical practice with various purposes, the underlying mechanisms of action involved have not been fully elucidated so far. We used the human cervical cancer-derived fibroblastic cell line (HeLa), to examine the cytokine secretion profile following FW treatment in the present study. Results: FW stimulation significantly induced the secretion of basic fibroblast growth factor (bFGF) and extracellular matrix metalloproteinase inducer (EMMPRIN). The effect of both factors on osteoblast-like MC3T3-E1 cells was further examined by stimulating the cells with the conditioned medium of FW-stimulated HeLa cells. However, the conditioned medium failed to induce IL-6 secretion. The MC3T3-E1 cells were further stimulated with recombinant bFGF or EMMPRIN or a combination of both factors. Intriguingly, bFGF-stimulated IL-6 induction was totally inhibited by EMMPRIN. Pretreatment with the specific inhibitor of nuclear factor-kappa B (NF-κB) drastically inhibited IL-6 secretion indicating that bFGF-induced IL-6 expression was dependent on NF-κB activation. The phosphorylation status of NF-κB p65 subunit was further examined. The results indicated that EMMPRIN inhibited bFGF-induced NF-κB p65 phosphorylation. Conclusions: These findings suggest that bFGF can induce IL-6 secretion in MC3T3-E1 cells through NF-κB activation. As EMMPRIN inhibited bFGF-induced IL-6 secretion by reducing the p65 subunit phosphorylation, it might be concluded that bFGF and EMMPRIN crosstalk in their respective signaling pathways. |
format | Online Article Text |
id | pubmed-5666549 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Ivyspring International Publisher |
record_format | MEDLINE/PubMed |
spelling | pubmed-56665492017-11-04 EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 Saiki, Akari Motoyoshi, Mitsuru Motozawa, Keiko Okamura, Teinosuke Ueki, Kousuke Shimizu, Noriyoshi Asano, Masatake Int J Med Sci Research Paper Background: Electrolytically-generated acid functional water (FW) is obtained by electrolyzing low concentrations of saline. Although it has been widely used in clinical practice with various purposes, the underlying mechanisms of action involved have not been fully elucidated so far. We used the human cervical cancer-derived fibroblastic cell line (HeLa), to examine the cytokine secretion profile following FW treatment in the present study. Results: FW stimulation significantly induced the secretion of basic fibroblast growth factor (bFGF) and extracellular matrix metalloproteinase inducer (EMMPRIN). The effect of both factors on osteoblast-like MC3T3-E1 cells was further examined by stimulating the cells with the conditioned medium of FW-stimulated HeLa cells. However, the conditioned medium failed to induce IL-6 secretion. The MC3T3-E1 cells were further stimulated with recombinant bFGF or EMMPRIN or a combination of both factors. Intriguingly, bFGF-stimulated IL-6 induction was totally inhibited by EMMPRIN. Pretreatment with the specific inhibitor of nuclear factor-kappa B (NF-κB) drastically inhibited IL-6 secretion indicating that bFGF-induced IL-6 expression was dependent on NF-κB activation. The phosphorylation status of NF-κB p65 subunit was further examined. The results indicated that EMMPRIN inhibited bFGF-induced NF-κB p65 phosphorylation. Conclusions: These findings suggest that bFGF can induce IL-6 secretion in MC3T3-E1 cells through NF-κB activation. As EMMPRIN inhibited bFGF-induced IL-6 secretion by reducing the p65 subunit phosphorylation, it might be concluded that bFGF and EMMPRIN crosstalk in their respective signaling pathways. Ivyspring International Publisher 2017-09-19 /pmc/articles/PMC5666549/ /pubmed/29104472 http://dx.doi.org/10.7150/ijms.20387 Text en © Ivyspring International Publisher This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) license (https://creativecommons.org/licenses/by-nc/4.0/). See http://ivyspring.com/terms for full terms and conditions. |
spellingShingle | Research Paper Saiki, Akari Motoyoshi, Mitsuru Motozawa, Keiko Okamura, Teinosuke Ueki, Kousuke Shimizu, Noriyoshi Asano, Masatake EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 |
title | EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 |
title_full | EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 |
title_fullStr | EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 |
title_full_unstemmed | EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 |
title_short | EMMPRIN Inhibits bFGF-Induced IL-6 Secretion in an Osteoblastic Cell Line, MC3T3-E1 |
title_sort | emmprin inhibits bfgf-induced il-6 secretion in an osteoblastic cell line, mc3t3-e1 |
topic | Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666549/ https://www.ncbi.nlm.nih.gov/pubmed/29104472 http://dx.doi.org/10.7150/ijms.20387 |
work_keys_str_mv | AT saikiakari emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 AT motoyoshimitsuru emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 AT motozawakeiko emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 AT okamurateinosuke emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 AT uekikousuke emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 AT shimizunoriyoshi emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 AT asanomasatake emmprininhibitsbfgfinducedil6secretioninanosteoblasticcelllinemc3t3e1 |