Juvenile idiopathic arthritis fibroblast-like synoviocytes influence chondrocytes to alter BMP antagonist expression demonstrating an interaction between the two prominent cell types involved in endochondral bone formation
BACKGROUND: To examine critical interactions between juvenile idiopathic arthritis synovial fibroblasts (JFLS) and chondrocytes (Ch), and their role in bony overgrowth seen in patients with juvenile idiopathic arthritis (JIA).
METHODS: Control (CFLS) and JFLS were cultured in synoviocyte media containing recombinant BMP4. Ch were cultured in either CFLS or JFLS conditioned-media without stimulation. Media supernatants were analyzed by ELISA. RNA from conditioned media experiment was analyzed by ClariomS microarray.
RESULTS: As expected, genes expressed in untreated JFLS and CFLS cultured in synoviocyte media were similar to each other and this expression differed from untreated Ch cultured in chondrocyte media. JFLS favor BMP ligand gene expression while downregulating TGFβ receptors' expression. Noggin and chordin, antagonists with high affinity for BMP4, are JFLS- but not Ch-preferred regulators of BMP signaling. Compared to Ch, JFLS overexpress collagen X (COLX), a marker of chondrocyte hypertrophy. Exogenous BMP4 causes JFLS to significantly decrease expression of noggin and collagen II (COL2), a marker of chondrocyte proliferation, and causes overexpression of COLX and alkaline-phosphatase (ALP). Chondrocytes cultured in JFLS-conditioned media (Ch-JFLS) express BMP genes and favor chordin protein expression over other antagonists. Ch-JFLS have significantly increased expression of COL2 and significantly decreased expression of COLX.
CONCLUSIONS: These data suggest JFLS, in the presence of BMP4, undergo hypertrophy and that JFLS-conditioned media influence chondrocytes to become highly proliferative. To the authors' knowledge, no prior study has shown that JFLS and chondrocytes play a direct role in the bony overgrowth in joints of patients with JIA and that BMPs or regulation of these growth factors influence the interaction between two prominent synovial cell types.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:18 |
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| Enthalten in: |
Pediatric rheumatology online journal - 18(2020), 1 vom: 16. Nov., Seite 89 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Simonds, Megan M [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 07.09.2021 Date Revised 07.09.2021 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1186/s12969-020-00483-0 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM317661329 |
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| 041 | |a eng | ||
| 100 | 1 | |a Simonds, Megan M |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Juvenile idiopathic arthritis fibroblast-like synoviocytes influence chondrocytes to alter BMP antagonist expression demonstrating an interaction between the two prominent cell types involved in endochondral bone formation |
| 264 | 1 | |c 2020 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
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| 500 | |a Date Completed 07.09.2021 | ||
| 500 | |a Date Revised 07.09.2021 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: To examine critical interactions between juvenile idiopathic arthritis synovial fibroblasts (JFLS) and chondrocytes (Ch), and their role in bony overgrowth seen in patients with juvenile idiopathic arthritis (JIA) | ||
| 520 | |a METHODS: Control (CFLS) and JFLS were cultured in synoviocyte media containing recombinant BMP4. Ch were cultured in either CFLS or JFLS conditioned-media without stimulation. Media supernatants were analyzed by ELISA. RNA from conditioned media experiment was analyzed by ClariomS microarray | ||
| 520 | |a RESULTS: As expected, genes expressed in untreated JFLS and CFLS cultured in synoviocyte media were similar to each other and this expression differed from untreated Ch cultured in chondrocyte media. JFLS favor BMP ligand gene expression while downregulating TGFβ receptors' expression. Noggin and chordin, antagonists with high affinity for BMP4, are JFLS- but not Ch-preferred regulators of BMP signaling. Compared to Ch, JFLS overexpress collagen X (COLX), a marker of chondrocyte hypertrophy. Exogenous BMP4 causes JFLS to significantly decrease expression of noggin and collagen II (COL2), a marker of chondrocyte proliferation, and causes overexpression of COLX and alkaline-phosphatase (ALP). Chondrocytes cultured in JFLS-conditioned media (Ch-JFLS) express BMP genes and favor chordin protein expression over other antagonists. Ch-JFLS have significantly increased expression of COL2 and significantly decreased expression of COLX | ||
| 520 | |a CONCLUSIONS: These data suggest JFLS, in the presence of BMP4, undergo hypertrophy and that JFLS-conditioned media influence chondrocytes to become highly proliferative. To the authors' knowledge, no prior study has shown that JFLS and chondrocytes play a direct role in the bony overgrowth in joints of patients with JIA and that BMPs or regulation of these growth factors influence the interaction between two prominent synovial cell types | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a BMP antagonists | |
| 650 | 4 | |a BMP4 | |
| 650 | 4 | |a Chondrocyte | |
| 650 | 4 | |a Endochondral bone | |
| 650 | 4 | |a Fibroblast | |
| 650 | 4 | |a Hypertrophy | |
| 650 | 4 | |a Juvenile idiopathic arthritis | |
| 650 | 4 | |a Proliferation | |
| 650 | 4 | |a Synoviocyte | |
| 650 | 4 | |a TGFβ | |
| 650 | 7 | |a BMP4 protein, human |2 NLM | |
| 650 | 7 | |a Bone Morphogenetic Protein 4 |2 NLM | |
| 650 | 7 | |a Carrier Proteins |2 NLM | |
| 650 | 7 | |a noggin protein |2 NLM | |
| 650 | 7 | |a 148294-77-3 |2 NLM | |
| 650 | 7 | |a Collagen |2 NLM | |
| 650 | 7 | |a 9007-34-5 |2 NLM | |
| 700 | 1 | |a Schlefman, Amanda R |e verfasserin |4 aut | |
| 700 | 1 | |a McCahan, Suzanne M |e verfasserin |4 aut | |
| 700 | 1 | |a Sullivan, Kathleen E |e verfasserin |4 aut | |
| 700 | 1 | |a Rose, Carlos D |e verfasserin |4 aut | |
| 700 | 1 | |a Brescia, AnneMarie C |e verfasserin |4 aut | |
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