Abstract
In knee osteoarthritis (OA), concentrations of interleukin (IL)-1β and tumor necrosis factor (TNF)-α increase in joint tissues and synovial fluid which incite a catabolic cascade and further the progression of OA. Several microRNAs (miRNA) have been associated with apoptosis (miR-16), inflammation (miR-22, miR-146a), and matrix degradation (miR-140, miR-27b) in developed OA or its symptoms. In this study, the time- and concentration-dependent nature of cellular and extracellular miRNAs in synoviocytes, meniscus cells, and chondrocytes as influenced by inflammatory cytokines was investigated. For time-dependent studies, three cell types were stimulated with 10ng/ml IL-1β or 50ng/ml TNF-α for 8, 16, and 24h. For concentration-dependent studies, chondrocytes were stimulated with a higher level of IL-1β (20ng/ml) or TNF-α (100ng/ml) for 8h. Cellular and extracellular expressions of miR-22, miR-16, miR-146a, miR-27b, and miR-140 were analyzed by RT-PCR. Time-dependent cellular miRNA expressions were similar across the three cell types with miR-146a significantly up-regulated and miR-27b significantly down-regulated at all time points. However, chondrocytes exhibited a unique extracellular miRNA profile with an increased release rate of miR-27b at 24h. Our findings support further research into the characterization of miRNAs in synovial fluid for the development of early detection strategies of OA or cartilage injury.
| Original language | English (US) |
|---|---|
| Journal | Journal of Orthopaedic Research |
| DOIs | |
| State | Accepted/In press - 2015 |
Fingerprint
Keywords
- Chondrocytes
- Inflammatory cytokines
- MicroRNA
- Osteoarthritis
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
Cite this
Inflammatory cytokines induce specific time- and concentration-dependent MicroRNA release by chondrocytes, synoviocytes, and meniscus cells. / Genemaras, Amaris A.; Ennis, Hayley; Kaplan, Lee; Huang, Chun-Yuh.
In: Journal of Orthopaedic Research, 2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Inflammatory cytokines induce specific time- and concentration-dependent MicroRNA release by chondrocytes, synoviocytes, and meniscus cells
AU - Genemaras, Amaris A.
AU - Ennis, Hayley
AU - Kaplan, Lee
AU - Huang, Chun-Yuh
PY - 2015
Y1 - 2015
N2 - In knee osteoarthritis (OA), concentrations of interleukin (IL)-1β and tumor necrosis factor (TNF)-α increase in joint tissues and synovial fluid which incite a catabolic cascade and further the progression of OA. Several microRNAs (miRNA) have been associated with apoptosis (miR-16), inflammation (miR-22, miR-146a), and matrix degradation (miR-140, miR-27b) in developed OA or its symptoms. In this study, the time- and concentration-dependent nature of cellular and extracellular miRNAs in synoviocytes, meniscus cells, and chondrocytes as influenced by inflammatory cytokines was investigated. For time-dependent studies, three cell types were stimulated with 10ng/ml IL-1β or 50ng/ml TNF-α for 8, 16, and 24h. For concentration-dependent studies, chondrocytes were stimulated with a higher level of IL-1β (20ng/ml) or TNF-α (100ng/ml) for 8h. Cellular and extracellular expressions of miR-22, miR-16, miR-146a, miR-27b, and miR-140 were analyzed by RT-PCR. Time-dependent cellular miRNA expressions were similar across the three cell types with miR-146a significantly up-regulated and miR-27b significantly down-regulated at all time points. However, chondrocytes exhibited a unique extracellular miRNA profile with an increased release rate of miR-27b at 24h. Our findings support further research into the characterization of miRNAs in synovial fluid for the development of early detection strategies of OA or cartilage injury.
AB - In knee osteoarthritis (OA), concentrations of interleukin (IL)-1β and tumor necrosis factor (TNF)-α increase in joint tissues and synovial fluid which incite a catabolic cascade and further the progression of OA. Several microRNAs (miRNA) have been associated with apoptosis (miR-16), inflammation (miR-22, miR-146a), and matrix degradation (miR-140, miR-27b) in developed OA or its symptoms. In this study, the time- and concentration-dependent nature of cellular and extracellular miRNAs in synoviocytes, meniscus cells, and chondrocytes as influenced by inflammatory cytokines was investigated. For time-dependent studies, three cell types were stimulated with 10ng/ml IL-1β or 50ng/ml TNF-α for 8, 16, and 24h. For concentration-dependent studies, chondrocytes were stimulated with a higher level of IL-1β (20ng/ml) or TNF-α (100ng/ml) for 8h. Cellular and extracellular expressions of miR-22, miR-16, miR-146a, miR-27b, and miR-140 were analyzed by RT-PCR. Time-dependent cellular miRNA expressions were similar across the three cell types with miR-146a significantly up-regulated and miR-27b significantly down-regulated at all time points. However, chondrocytes exhibited a unique extracellular miRNA profile with an increased release rate of miR-27b at 24h. Our findings support further research into the characterization of miRNAs in synovial fluid for the development of early detection strategies of OA or cartilage injury.
KW - Chondrocytes
KW - Inflammatory cytokines
KW - MicroRNA
KW - Osteoarthritis
UR - http://www.scopus.com/inward/record.url?scp=84947976478&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947976478&partnerID=8YFLogxK
U2 - 10.1002/jor.23086
DO - 10.1002/jor.23086
M3 - Article
C2 - 26505891
AN - SCOPUS:84947976478
JO - Journal of Orthopaedic Research
JF - Journal of Orthopaedic Research
SN - 0736-0266
ER -