Homeostasis of the epidermal cells and its dysfunction in epidermolysis bullosa
Project/Area Number |
19H03449
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 49030:Experimental pathology-related
|
Research Institution | Gunma University |
Principal Investigator |
Izumi Tetsuro 群馬大学, 生体調節研究所, 教授 (00212952)
|
Co-Investigator(Kenkyū-buntansha) |
松永 耕一 群馬大学, 生体調節研究所, 助教 (20570162)
|
Project Period (FY) |
2019-04-01 – 2022-03-31
|
Project Status |
Completed (Fiscal Year 2021)
|
Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
|
Keywords | 表皮細胞 / 細胞接着 / 細胞内膜輸送 / Rabタンパク質 / 表皮水疱症 / 細胞移動 / Rab27 / インテグリン / タンパク質複合体 / 表皮損傷 / ヘミデスモソーム |
Outline of Research at the Start |
表皮水疱症とは、先天的に皮膚が脆弱で、生後早期から、わずかな外力で全身に水疱、びらんの形成が起こる遺伝性疾患である。重症化すると日常生活が著しく制限され、致死となることもあるが、未だに対症療法しかない難病である。表皮水疱症の多くは、皮膚細胞を形作る構造タンパク質の異常によって起きるが、最近、それとは全く別のタイプで、皮膚細胞内の内部環境を保つ分子の異常によるものがあることが判明した。本研究では、この分子の機能を解明して、皮膚細胞を正常に保つ仕組みと、その破綻によって起こる表皮水疱症の病態を明らかにする。
|
Outline of Final Research Achievements |
Genetic mutation of exophilin-5, one of the Rab27 effectors, is known to cause epidermolysis bullosa in humans. However, the molecular mechanism for the function and action mechanism of exophilin-8 in epidermal cells is largely unknown. In this study, we investigated the pathophysiological function of exophilin-8 by exploring interacting proteins, intracellular localization, and phenotypes in knockdown/knockout cells. As a result, we obtained evidence that exophilin-8 is involved in cell adhesion and migration via interactions with proteins constituting hemidesmosomes, desmosomes, and adherence junctions.
|
Academic Significance and Societal Importance of the Research Achievements |
本研究によって、体の外表を覆う表皮細胞の恒常性を保つ仕組みと共に、その破綻によって起こる、皮膚が脆弱でわずかな外力で全身に水疱、びらんの形成が起こり、未だに対症療法しかない遺伝性疾患の表皮水疱症に関する病態生理に関して、その分子機序の一端が明らかとなった。
|
Report
(4 results)
Research Products
(32 results)
-
-
-
[Journal Article] Berberine is an insulin secretagogue targeting the KCNH6 potassium channel2021
Author(s)
Zhao MM, Lu J, Li S, Wang H, Cao X, Li Q, Shi TT, Matsunaga K, Chen C, Huang H, Izumi T, Yang JK.
-
Journal Title
Nat Commun
Volume: 12
Issue: 1
Pages: 6342-6342
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
[Journal Article] Exophilin-5 regulates allergic airway inflammation by controlling IL-33-mediated Th2 responses2020
Author(s)
Katsuhide Okunishi, Hao Wang, Maho Suzukawa, Ray Ishizaki, Eri Kobayashi, Miho Kihara, Takaya Abe, Jun-ichi Miyazaki, Masafumi Horie, Akira Saito, Hirohisa Saito, Susumu Nakae, Tetsuro Izumi
-
Journal Title
Journal of Clinical Investigation
Volume: -
Issue: 7
Pages: 3919-3935
DOI
NAID
Related Report
Peer Reviewed / Open Access
-
-
[Journal Article] Exophilin-5 regulates allergic airway inflammation by controlling IL-33-mediated Th2 responses.2020
Author(s)
Okunishi K, Wang H, Suzukawa M, Ishizaki R, Kobayashi E, Kihara M, Abe T, Miyazaki J, Horie M, Saito A, Saito H, Nakae S, and Izumi T.
-
Journal Title
J. Clin. Invest.
Volume: in press
Related Report
Peer Reviewed
-
[Journal Article] Coixol amplifies glucose-stimulated insulin secretion via cAMP mediated signaling pathway.2019
Author(s)
Hameed A, Hafizur RM, Kahn MI, Jawed A, Wang H, Zhao M, Matsunaga K, Izumi T, Siddiqui S, Khan F, Adhikari A, and Sharma KR.
-
Journal Title
Eur. J. Pharmacol.
Volume: 858
Pages: 172514-172514
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
[Presentation] ALK-7: a validated target for the treatment of obesity2020
Author(s)
Yun Bu, Min Zhao, Maureen Fredericks, Marishka Cannell, Yossi Dagon, Connor Emdin, Katsuhide Okunishi, Hao Wang, Dianne Sako, Roselyne Castonguay, Rajasekhar N.V.S. Suragani, Sekar Kathiresan, Asya Grinberg, John Knopf, R. Scott Pearsall, Ravindra Kumar, and Tetsuro Izumi
Organizer
ADA’s 80th Scientific Sessions
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
[Presentation] Coixol amplifies glucose stimulated insulin secretion through cAMP-PKA signaling cascade-independent of K-ATP Channels.2019
Author(s)
Abdul Hameed, Rahman M Hafizur, M Israr Khan, Hao Wang, Miaomiao Zhao, Kohichi Matsunaga, Tetsuro Izumi, Sonia Siddiqui, Faisal Khan, Achyut Adhikari, and Khaga Raj Sharma.
Organizer
The 11th Scientific Meeting of the Asian Association for the Study of Diabetes.
Related Report
Int'l Joint Research
-
-
[Presentation] Hymecromone potentiates glucose-stimulated insulin secretion through cAMP-PKA signaling pathway.2019
Author(s)
Rahman M Hafizur, M Israr Khan, Abdul Hameed, Kiran Maryam, Huma Aslam Bhatti, Munneb Ali, Zaheer-UI, Faisal Khan, Ghulam Abbas, Hao Wang, Kohichi Matsunaga, and Tetsuro Izumi
Organizer
第62回日本糖尿病学会年次学術集会
Related Report
-
-
-
-
-
[Presentation] Exploring the insulin secretory mechanisms of hymecromone and eupatorin in mice islets.2019
Author(s)
Rahman M Hafizur, Abdul Hameed, M Israr Khan, Kiran Maryam, Muneeb Ali, Za-heer Ul-Haq, Hao Wang, Miaomiao Zhao, Kohichi Matsunaga, Tetsuro Izumi, Achyut Adhi-kari, Huma Aslam Bhatti.
Organizer
The 7th International Symposium-cum-Training Course on Molecular Medicine and Drug Research, Karachi, Pakistan
Related Report
Int'l Joint Research
-
-
-