2013 Fiscal Year Final Research Report
Role of Ubiquitin-Proteasome System in Osteoclast Differentiation
Project/Area Number |
24791980
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Multi-year Fund |
Research Field |
Functional basic dentistry
|
Research Institution | Fukuoka Dental College (2013) Kyushu Dental College (2012) |
Principal Investigator |
|
Project Period (FY) |
2012-04-01 – 2014-03-31
|
Keywords | 破骨細胞 / ユビキチン化 / プロテアソーム / SCF型ユビキチンリガーゼ / NF-kB / FBW7 / b-TRCP |
Research Abstract |
Ubiquitin-Proteasome pathway has been recently shown to influence osteoclast formation and function, the precise molecular cascade underlying these effects is presently unclear. Recent our studies showed that b-TRCP induced processing of NFkB2/p100 to p52 is the critical step in activation of RANKL induced alternative NF-kB signaling pathway. This processing event is triggered by NIK-IKKa induced phosphorylation of NFkB2. In this study, we found novel activation mechanism of b-TRCP induced NFkB2/p100 processing pathway via Akt/Cot-IKKa activation. Furthermore, we identified Fbw7 as a physiological E3 ligase controlling NFkB2/p100's stability. It further implicates that Fbw7 might exert osteoclast differentiation by regulating NF-kB activity. These results suggested that NFkB2 is the unique molecule regulated by multiple ubiquitin proteasomal pathways in osteoclast differentiation.
|
Research Products
(22 results)
-
[Journal Article] RelB-induced expression of Cot, an MAP3K family member, rescues RANKL-induced osteoclastogenesis in alymphoplasia mice by promoting NF-κB2 processing by IKKα2014
Author(s)
Taniguchi R, Fukushima H, Osawa K, Maruyama T, Yasuda H, Weih F, Doi T, Maki K, Jimi E
-
Journal Title
J Biol Chem
Volume: 289
Pages: 7349-61
DOI
-
[Journal Article] SCF-mediated Cdh1 degradation defines a negative feedback system that coordinates cell-cycle progression2013
Author(s)
Fukushima H, Ogura K, Wan L, Lu Y, Li V, Gao D, Liu P, Lau AW, Wu T, Kirschner MW, Inuzuka H, Wei W
-
Journal Title
Cell Rep
Volume: 4
Pages: 803-16
DOI
-
-
[Journal Article] p130Cas, Crk-associated substrate, plays important roles in osteoclastic bone resorption2013
Author(s)
Nagai Y, Osawa K, Fukushima H, Tamura Y, Aoki K, Ohya K, Yasuda H, Hikiji H, Takahashi M, Seta Y, Seo S, Kurokawa M, Kato S, Honda H, Nakamura I, Maki K, Jimi E
-
Journal Title
J Bone Miner Res
Volume: 28
Pages: 2449-62
DOI
-
[Journal Article] Disruption of NF-κB1 prevents bone loss caused by mechanical unloading2013
Author(s)
Nakamura H, Aoki K, Masuda W, Alles N, Nagano K, Fukushima H, Osawa K, Yasuda H, Nakamura I, Mikuni-Takagaki Y, Ohya K, Maki K, Jimi E
-
Journal Title
J Bone Miner Res
Volume: 28
Pages: 1457-67
DOI
-
[Journal Article] Acetylation-dependent regulation of Skp2 function2012
Author(s)
Inuzuka H, Gao D, Finley LW, Yang W, Wan L, Fukushima H, Chin YR, Zhai B, Shaik S, Lau AW, Wang Z, Gygi SP, Nakayama K, Teruya-Feldstein J, Toker A, Haigis MC, Pandolfi PP, Wei W
-
Journal Title
Cell
Volume: 150(1)
Pages: 179-93
DOI
-
[Journal Article] SCF(β-TRCP) suppresses angiogenesis and thyroid cancer cell migration by promoting ubiquitination and destruction of VEGF receptor 22012
Author(s)
Shaik S, Nucera C, Inuzuka H, Gao D, Garnaas M, Frechette G, Harris L, Wan L, Fukushima H, Husain A, Nose V, Fadda G, Sadow PM, Goessling W, North T, Lawler J, Wei W
-
Journal Title
J Exp Med
Volume: 209
Pages: 1289-307
DOI
-
[Journal Article] SCF(Fbw7) modulates the NFkB signaling pathway by targeting NFkB2 for ubiquitination and destruction2012
Author(s)
Fukushima H, Matsumoto A, Inuzuka H, Zhai B, Lau AW, Wan L, Gao D, Shaik S, Yuan M, Gygi SP, Jimi E, Asara JM, Nakayama K, Nakayama KI, Wei W
-
Journal Title
Cell Rep
Volume: 1
Pages: 434-43
-
[Journal Article] Accumulation of p100, a precursor of NF-κB2, enhances osteoblastic differentiation in vitro and bone formation in vivo in aly/aly mice2012
Author(s)
Seo Y, Fukushima H, Maruyama T, Kuroishi KN, Osawa K, Nagano K, Aoki K, Weih F, Doi T, Zhang M, Ohya K, Katagiri T, Hosokawa R, Jimi E
-
Journal Title
Mol Endocrinol
Volume: 26
Pages: 414-22
DOI
-
-
-
-
-
-
-
-
-
-
-
-
-