کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8347867 | 1541706 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regulatory effects of fibroblast growth factor-8 and tumor necrosis factor-α on osteoblast marker expression induced by bone morphogenetic protein-2
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کلمات کلیدی
ActRIIFGFRBMPRIITGF-βTNFTNFRactivin type-II receptorRUNX2BMP type-II receptorreceptor activator of NFκBFGFERKMAPK - MAPKSAPK/JNK - SAPK / JNKRheumatoid arthritis - آرتریتروماتوئیدALK - آلکALP - آلکالن فسفاتازAlkaline phosphatase - آلکالین فسفاتاز یا فسفاتاز قلیاییOsteoarthritis - استئوآرتریت(آرتروز)Osteoblast - استئوبلاست Osteogenesis - استخوان زاییtransforming growth factor-β - تبدیل فاکتور رشد βRank - رتبهRunt-related transcription factor 2 - عامل رونویسی مرتبط با روت 2Tumor necrosis factor (TNF)-α - عامل نکروز تومور (TNF) -αfibroblast growth factor - فاکتور رشد فیبروبلاستtumor necrosis factor - فاکتور نکروز تومورBMP - مدیریت فرایند کسب و کارBone morphogenetic protein - پروتئین مورفوژنیک استخوانbone morphogenetic protein (BMP) - پروتئین مورفوژنیک استخوان (BMP)mitogen-activated protein kinase - پروتئین کیناز فعال با mitogenextracellular signal-regulated kinase - کیناز تنظیم شده سیگنال خارج سلولیactivin receptor-like kinase - کیناز گیرنده مانند فعال استFGF Receptor - گیرنده FGFTNF receptor - گیرنده TNF
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
BMP induces osteoblast differentiation, whereas a key proinflammatory cytokine, TNF-α, causes inflammatory bone damage shown in rheumatoid arthritis. FGF molecules are known to be involved in bone homeostasis. However, the effects of FGF-8 on osteoblast differentiation and the interaction between FGF-8, BMPs and TNF-α have yet to be clarified. Here we investigated the effects of FGF-8 in relation to TNF-α actions on BMP-2-induced osteoblast marker expression using myoblast cell line C2C12, osteoblast precursor cell line MC3T3-E1 and rat calvarial osteoblasts. It was revealed that FGF-8 inhibited BMP-2-induced expression of osteoblast differentiation markers, including Runx2, osteocalcin, alkaline phosphatase, type-1 collagen and osterix, in a concentration-dependent manner. The inhibitory effects of FGF-8 on BMP-induced osteoblast differentiation and Smad1/5/8 activation were enhanced in the presence of TNF-α action. FGF-8 also inhibited BMP-2-induced expression of Wnt5a, which activates a non-canonical Wnt signaling pathway. FGF-8 had no significant influence on the expression levels of TNF receptors, while FGF-8 suppressed the expression of inhibitory Smad6 and Smad7, suggesting a possible feedback activity through FGF to BMP receptor (BMPR) signaling. Of note, inhibition of ERK activity and FGF receptor (FGFR)-dependent protein kinase, but not JNK or NFκB pathway, suppressed the FGF-8 actions on BMP-induced osteoblast differentiation. FGF-8 was revealed to suppress BMP-induced osteoblast differentiation through the ERK pathway and the effects were enhanced by TNF-α. Given the finding that FGF-8 expression was increased in synovial tissues of rheumatoid arthritis, the functional interaction between FGFR and BMPR signaling may be involved in the development process of inflammatory bone damage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Peptides - Volume 73, November 2015, Pages 88-94
Journal: Peptides - Volume 73, November 2015, Pages 88-94
نویسندگان
Takayuki Katsuyama, Fumio Otsuka, Tomohiro Terasaka, Kenichi Inagaki, Mariko Takano-Narazaki, Yoshinori Matsumoto, Ken-Ei Sada, Hirofumi Makino,