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Objective : The purpose of this study is to explain the effect and reciprocal action among tumor necrosis factor (TNF) like weak inducer of
apoptosis (TWEAK), fibroblast growth factor-inducible 14 (Fn14), and transforming growth factor-β1 (TGF-β1) on degeneration of human
intervertebral disc (IVD).
Methods : Human intervertebral disc tissues and cells were cultured with Dulbecco’s Modified Eagle’s Medium/Nutrient F-12 Ham (DMEM/F-12)
media in 37°C, 5% CO2 incubator. When IVD tissues were cultured with TWEAK, Fn14 that is an antagonistic receptor for TWEAK and TGF-β1, the level
of sulfated glycosaminoglycan (sGAG) was estimated by dimethyl methyleneblue (DMMB) assay and sex determining region Y (SRY)-box 9 (Sox9) and
versican messenger ribonucleic acid (mRNA) levels were estimated by reverse transcriptase polymerase chain reaction (RT-PCR).
Results : When human IVD tissue was cultured for nine days, the sGAG content was elevated in proportion to culture duration. The sGAG was
decreased significantly by TWEAK 100 ng/mL, however, Fn14 500 ng/mL did not change the sGAG production of IVD tissue. The Fn14 increased
versican and Sox9 mRNA levels decreased with TWEAK in IVD tissue TGF-β1 20 ng/mL elevated the sGAG concentration 40% more than control.
The sGAG amount decreased with TWEAK was increased with Fn14 or TGF-β1 but the result was insignificant statistically. TGF-β1 increased the
Sox9 mRNA expression to 180% compared to control group in IVD tissue. Sox9 and versican mRNA levels decreased by TWEAK were increased
with TGF-β1 in primary cultured IVD cells, however, Fn14 did not show increasing effect on Sox9 and versican.
Conclusion : This study suggests that TWEAK would act a role in intervertebral disc degeneration through decreasing sGAG and the mRNA
level of versican and Sox9.
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참고문헌 (20건) : 자료제공( 네이버학술정보 )더보기
원문구축 및 2018년 이후 자료는 524호에서 직접 열람하십시요.
도서위치안내: 정기간행물실(524호) / 서가번호: 국내17
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