Signal networks among organ/tissue in the disorder of phosphate homeostasis
Project/Area Number |
23390226
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Kidney internal medicine
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Research Institution | The University of Tokushima |
Principal Investigator |
MIYAMOTO KENICHI 徳島大学, ヘルスバイオサイエンス研究部, 教授 (70174208)
|
Co-Investigator(Kenkyū-buntansha) |
SEGAWA Hiroko 徳島大学, 大学院・ヘルスバイオサイエンス研究部, 講師 (70325257)
KIDO Shinsuke 徳島大学, 大学院・ヘルスバイオサイエンス研究部, 特任助教 (30437652)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2011: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
|
Keywords | リン利尿 / 腎臓 / 繊維芽細胞増殖因子23 (FGF23) / 骨細胞 / FGF23 / Klotho / リン / 慢性腎臓病 / ビタミンD |
Research Abstract |
Fibroblast growth factor 23 (FGF23) is a bone-derived hormone that plays an important role in phosphate (Pi) transport in the proximal tubular cells. Klotho forms a specific receptor complex with FGF receptor that transmits signaling of FGF23 in the distal tubules. FGF23/klotho signaling leads to down-regulation of sodium-dependent Pi cotransporter (NaPi-II ) in the proximal tubules. In the present study, we investigated the mechanisms of down-regulation of renal Pi transporter by FGF23/klotho system and the production of FGF23 in bone cells. We show that klotho expression in the proximal tubules is induced by several conditions. Furthermore, inactivation of NaPi-IIc by PKC is the first step of FGF23/klotho dependent down-regulation of the transporters. Thus, FGF23/klotho signaling in the kidney-bone axis is essential for Pi homeostasis.
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Report
(4 results)
Research Products
(154 results)
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[Journal Article] Effect of dietary components on renal inorganic phosphate (Pi) excretion induced by a Pi-depleted diet.2014
Author(s)
Ohnishi R, Segawa H, Ohmoto T, Sasaki S, Hanazaki A, Mori A, Ikuta K, Furutani J, Kawakami E, Tatsumi S, Hamada Y, Miyamoto K.
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Journal Title
J Med Invest.
Volume: 61(1.2)
Pages: 162-70
NAID
Related Report
Peer Reviewed
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[Journal Article] Molecular Mechanisms of Cadmium-Induced Fibroblast growth Factor 23 Upregulation in Osteoblast-Like Cells.2014
Author(s)
Kido S, Fujihara M, Nomura K, Sasaki S, Mukai R, Ohnishi R, Kaneko I, Segawa H, Tatsumi S, Izumi H, Kohno K, Miyamoto KI.
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Journal Title
Toxicol Sci.
Volume: Apr 19.
Related Report
Peer Reviewed
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[Journal Article] Critical role of parathyroid hormone (PTH) receptor-1 phosphorylation in regulating acute response to PTH2013
Author(s)
Maeda A, Okazaki M, Baron DM, Dean T, Khatri A, Mahon M, Segawa H, Abou-Samra AB, Jüppner H, Bloch KD, Potts JT Jr, Gardella TJ
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Journal Title
Proc Natl Acad Sci USA
Volume: 110
Issue: 15
Pages: 5864-5869
DOI
Related Report
Peer Reviewed
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[Journal Article] Ezrin, a membrane cytoskeletal cross-linker, is essential for the regulation of phosphate and calcium homeostasis.2013
Author(s)
Hatano R, Fujii E, Segawa H, Mukaisho K, Matsubara M, Miyamoto K, Hattori T, Sugihara H, Asano S.
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Journal Title
Kidney Int
Volume: 83
Pages: 41-49
Related Report
Peer Reviewed
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[Journal Article] Analysis of different complexes of type IIa sodium-dependent phosphate transporter in rat renal cortex using blue-native polyacrylamide gel electrophoresis2011
Author(s)
Tanimura A, Yamada F, Saito A, Ito M, Kimura T, Anzai N, Horie D, Yamamoto H, Miyamoto K, Taketani Y, Takeda E
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Journal Title
J Med Invest
Volume: 58(1.2)
Pages: 140-147
NAID
URL
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Peer Reviewed
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[Presentation] 肝臓切除患者における低リン血症発症機構の解明.2013
Author(s)
野村憲吾,辰巳佐和子,宮川淳美,岡奈都紀,塩崎雄治,木戸慎介,瀬川博子,佐野光枝,福渡努, 柴田克己,宮本賢一.
Organizer
第67回日本栄養・食糧学会大会
Place of Presentation
名古屋大学東山キャンパス(愛知県)
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[Presentation] 生体内リン代謝調節機構における唾液腺の関与.2013
Author(s)
生田かよ,瀬川博子,向井朋,佐々木祥平,森絢加,石川康子,上田乙也,堀場直,寺社下浩一,福島直,宮本賢一.
Organizer
第86回日本生化学会大会.
Place of Presentation
パシフィコ横浜(神奈川県)
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[Presentation] Molecular mechanisms of cadmium (Cd) dependent fibroblast growth factor 23 secretion in bone2012
Author(s)
Kido S, Fujiwara M, Nomura K, Sasaki S, Shiozaki Y, Segawa H, Tatsumi S, Miyamoto K
Organizer
Americal Society Nephrology, Kidney Week
Place of Presentation
San Diego Convention Center, CA, USA
Year and Date
2012-11-02
Related Report
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[Presentation] Mechanisms of hyperphosphatemia in the osteocyte-abelated mice2012
Author(s)
Tatsumi S, Kamatani T, Nomura K, Yoshimi A, Shiozaki Y, Sasaki S, Manabe M, Kido S, Segawa H, Miyamoto K
Organizer
Americal Society Nephrology, Kidney Week
Place of Presentation
San Diego Convention Center, CA, USA
Year and Date
2012-11-02
Related Report
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[Presentation] 骨細胞とリン代謝2012
Author(s)
釜谷達哉
Organizer
第15回日本病態栄養学会年次学術集会
Place of Presentation
国立京都国際会館(京都府)
Year and Date
2012-01-14
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[Presentation] Role of Sodium-Dependent Phosphate(Pi)Transporter(Npt2b)on Salivary Pi Secretion2011
Author(s)
Segawa H, Mukai T, Ohnishi S, Sasaki S, Ohi A, Kuwahara S, Kido S, Tatsumi S, Ishikawa Y, Ueda O, Horiba N, Jishage K, Fukushima N, Miyamoto K
Organizer
J Am Soc Nephrol
Place of Presentation
Pennsylvania Convention Center in Philadelphia, USA
Year and Date
2011-11-11
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[Presentation] Molecular Consequences of the SLC34A3 Mutations of Hereditary Hypophosphatemic Rickets with Hypercalciuria(HHRH)2011
Author(s)
Ohi A, Haito Sugino S, Ito M, Shiozaki Y, Nomura K, Kusaka Y, Sasaki S, Ohnishi S, Yamaguchi S, Kido S, Tatsumi S, Segawa H, Miyamoto K
Organizer
J Am Soc Nephrol
Place of Presentation
Pennsylvania Convention Center in Philadelphia, USA
Year and Date
2011-11-10
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[Book] 医学のあゆみ2013
Author(s)
野村憲吾,宮本賢一.
Total Pages
147
Publisher
医歯薬出版株式会社
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[Book] 腎と骨代謝2013
Author(s)
宮本賢一.
Total Pages
333
Publisher
日本メディカルセンター
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[Book] 腎と骨代謝2013
Author(s)
瀬川博子,大西沙織,塩崎雄治,佐々木祥平,宮本賢一.
Total Pages
333
Publisher
日本メディカルセンター
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[Book] 臨床栄養2013
Author(s)
大西律子,木戸慎介,宮本賢一.
Total Pages
390
Publisher
医歯薬出版株式会社
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