Elucidation of novel pathogenic mechanism for skin diseases related to misfolded HLA
Project/Area Number |
15K15419
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Dermatology
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Research Institution | Osaka University |
Principal Investigator |
Noriko Arase 大阪大学, 医学系研究科, 助教 (30360481)
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Co-Investigator(Renkei-kenkyūsha) |
KATAYAMA Ichiro 大阪大学, 大学院医学系研究科, 教授 (80191980)
AZUKIZAWA Hiroaki 奈良県立医科大学, 大学院医学研究科, 准教授 (10379240)
ARASE Hisashi 大阪大学, 微生物病研究所, 教授 (10261900)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | β2GPI / HLA Class II / ulcer / autoantibody / ANCA関連血管炎 / 皮膚潰瘍 / 抗リン脂質抗体症候群 / HLAクラスII / 自己抗体 / ミスフォールド蛋白 / 自己免疫性皮膚疾患 |
Outline of Final Research Achievements |
Our research revealed that cellular misfolded proteins associated with HLA Class II, and the autoantibodies against these complexes seems to have pathogenic roles in certain autoimmune diseases. Chronic ulcers are sometimes idiopathic and intractable. When we analyzed chronic ulcer patients who were not diagnosed as antiphospholipid syndrome, 27% of the patients possessed anti-β2GPI/HLA-DR complex Abs. Furthermore, β2GPI/HLA-DR complexes were observed in the skin region prior to ulceration. These results shows that anti-β2GPI/HLA-DR complex Abs plays an important role in intractable chronic ulcers. Antibodies against misfoleded HLA Class I/HLA Class II complex are observed in a certain skin disease, and these antibodies are considered to be found in other skin diseases.
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] Novel autoantibody against the β2-glycoprotein I/HLA-DR complex in patients with refractory cutaneous ulcers2017
Author(s)
Arase N, Tanimura K, Jin H, Yamaoka T, Kishibe M, Nishioka M, Kiyohara E, Tani M, Matsuoka S, Ohmura K, Takasugi K, Yamamoto T, Murota H, Arase H, Katayama I.
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Journal Title
Br J Dermatol.
Volume: 印刷中
Issue: 1
Pages: 272-275
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] LILRA2 is an innate immune sensor for microbially cleaved immunoglobulins.2016
Author(s)
Hirayasu K, Saito F, Suenaga T, Shida K, Arase N, Oikawa K, Yamaoka T, Murota H, Chibana H, Nagai H, Nakamura Y, Katayama I, Colonna M, Arase H.
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Journal Title
Nature Microbiology
Volume: -
Issue: 6
Pages: 1-7
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] β2-glycoprotein I/ HLA class II complexes are novel autoantigens in antiphospholipid syndrome.2015
Author(s)
Tanimura K, Jin H, Suenaga T, Morikami S, Arase N, Kishida K, Hirayasu K, Kohyama M, Ebina Y, Yasuda S, Horita T, Takasugi K, Ohmura K, Yamamoto K, Katayama I, Sasazuki T, Lanier LL, Atsumi T, Yamada H, Arase H.
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Journal Title
Blood
Volume: 125
Issue: 18
Pages: 2835-2844
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Antiphospholipid antibody recognizes β2GPI complexed with HLA class II molecules via its domain V2017
Author(s)
Yuki Sasagawa, Kenji Tanimura, Hui Jin, Noriko Arase, Tadahiro Suenaga, Masako Koyama, Kouyuki Hirayasu, Satoko Morikami, Yasuhiko Ebina, Tatsuya Atsumi, Hideto Yamada, Hisashi Arase,
Organizer
The 46th Annual Meeting of The Japanese Society for Immunology
Related Report
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[Presentation] Prothrombin complexed with HLA class II molecules is an autoantibody target in antiphospholipid syndrome2017
Author(s)
Satoko Morikami, Yuki Sasagawa, Kenji Tanimura, Noriko Arase, Kouyuki Hirayasu, Tadahiro Suenaga,Masako Koyama, Tatsuya Atsumi, Hideto Yamada, Hisashi Arase,
Organizer
The 46th Annual Meeting of The Japanese Society for Immunology
Related Report
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[Presentation] Novel Autoantibody against the β2GP1/HLA-DR Complex in Patients with Refractory Cutaneous Ulcerations.2016
Author(s)
Arase N, Jin H, Tanimura K, Matsuoka S, Yamaoka T, Nishioka M, Kiyohara E, Tani M, Ohmura K, Murota H, Arase H, Katayama I
Organizer
15th International Congress on Antiphospholipid Antibodies
Place of Presentation
Girne, Northern Cyprus
Year and Date
2016-09-21
Related Report
Int'l Joint Research
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[Presentation] Presence of anti-β2GP1/HLA-DR complex autoantibodies in the non-APS patients with recurrent limb ulcerations.2015
Author(s)
Noriko Arase, Kenji Tanimura, Jin Hui, Sumiko Matsuoka, Toshifumi Yamaoka, Megumi Nishioka, Eiji Kiyohara, Mamori Tani, Koichiro Ohmura, Hiroyuki Murota, Hisashi Arase, Ichiro Katayama
Organizer
日本研究皮膚科学会 第40回学術大会・総会
Place of Presentation
岡山
Year and Date
2015-12-11
Related Report
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[Presentation] MHC class II molecules expose autoantibody epitopes on autoantigens.2015
Author(s)
Hiwa Ryosuke, Ohmura Koichiro, Arase Noriko, Jin Hui, Hirayasu Kouyuki, Kohyama Masako, Suenaga Tadahiro, Saito Fumiji, Iwatani Hirotsugu, Atsumi Tatsuya, Terao Chikashi, Mimori Tsuneyo, Arase Hisashi
Organizer
第44回日本免疫学会学術集会
Place of Presentation
札幌
Year and Date
2015-11-18
Related Report
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[Presentation] DIR is an innate immune sensor for microbially cleaved immunoglobulins.2015
Author(s)
Kouyuki Hirayasu, Fumiji Saito, Tadahiro Suenaga, Kyoko Shida, Noriko Arase, Keita Oikawa, Toshifumi Yamaoka, Hiroyuki Murota, Hiroji Chibana, Ichiro Nakagawa, Tomoko Kubori, Hiroki Nagai, Yuji Nakamaru, Ichiro Katayama, Marco Colonna, Hisashi Arase.
Organizer
第44回日本免疫学会学術集会
Place of Presentation
札幌
Year and Date
2015-11-18
Related Report
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