2015 Fiscal Year Research-status Report
未解決のCoffin-Siris症候群に対する戦略的遺伝子探索
Project/Area Number |
15K19660
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Research Institution | Kanagawa Children's Medical Center (Clinical Research Institute) |
Principal Investigator |
鶴崎 美徳 地方独立行政法人神奈川県立病院機構神奈川県立こども医療センター(臨床研究所), その他部局等, 主任研究員 (70392040)
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Project Period (FY) |
2015-04-01 – 2017-03-31
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Keywords | Coffin-Siris症候群 / 疾患責任遺伝子 |
Outline of Annual Research Achievements |
Coffin-Siris症候群 (Coffin-Siris Syndrome,CSS) は、1970年にCoffin医師とSiris医師により、知的障害、発育不全、疎な頭髪および睫毛、特異顔貌、第5指・趾爪の低形成もしくは欠失を伴う症候群として報告された。我々は,CSS症例のゲノムDNAを用いて、次世代シークエンサーを用いた全エクソーム解析 (Whole Exome Sequencing,WES) を行い、2012年に世界で初めてクロマチンリモデリング因子の1種であるBAF複合体の構成サブユニットをコードする5つの遺伝子(SMARCB1・SMARCA4・ARID1A・ARID1B・SMARCE1)を同定した。この遺伝子異常を病因としたCSS症例は全体のおよそ55.0 %であり、未解決の症例では新たな遺伝子の関与が示唆されていた。そこで、BAF複合体の構成サブユニットをコードする遺伝子群に異常を認めないCSS 症例とその両親検体を用いて、WESにより遺伝子変異探索を行った。その結果、2例においてSOX11にde novo変異を見出した。転写因子であるSOX11はBAF複合体ネットワークの下流で、神経細胞の分化制御などに重要な役割を果たしていることが報告されている。本遺伝子がヒトの脳組織で発現していることを確認し、ゼブラフィッシュにおいて、モルフォリノアンチセンスオリゴにより相同遺伝子の機能を阻害すると、頭部の縮小、中枢神経の細胞死などの異常が認められ、CSSの症状を模倣していた。 本年度は、新たなCSS検体を用いて、NGSによる網羅的遺伝子変異の探索を行った。その結果、CSS6例においてARID1Bに変異が認められ、責任遺伝子が同定された。
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Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
2015年4月より所属機関が変更となり、研究の立ち上げに時間を要したため。しかしその後は、着実にNGSを用いた解析を行っており、6症例において責任遺伝子を同定した。
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Strategy for Future Research Activity |
責任遺伝子が同定された症例に関しては、その遺伝子産物の性状に応じた機能解析を行っていく。既知の責任遺伝子が同定できない症例に関しては、WESをトリオ解析(患児、両親)で行い、de novo変異を確認し、新規責任遺伝子の同定を試みる。
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Causes of Carryover |
2015年4月より所属機関が変更となり、研究の立ち上げに時間を要したため。
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Expenditure Plan for Carryover Budget |
学会発表のための旅費や、研究のための消耗品費に使用する予定である。
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[Journal Article] De novo DNM1 mutations in two cases of epileptic encephalopathy.2016
Author(s)
Nakashima M, Kouga T, Lourenço CM, Shiina M, Goto T, Tsurusaki Y, Miyatake S, Miyake N, Saitsu H, Ogata K, Osaka H, Matsumoto N.
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Journal Title
Epilepsia
Volume: 57(1)
Pages: e18-23
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Whole-exome sequencing and neurite outgrowth analysis in autism spectrum disorder.2016
Author(s)
Hashimoto R, Nakazawa T, Tsurusaki Y, Yasuda Y, Nagayasu K, Matsumura K, Kawashima H, Yamamori H, Fujimoto M, Ohi K, Umeda-Yano S, Fukunaga M, Fujino H, Kasai A, Hayata-Takano A, Shintani N, Takeda M, Matsumoto N, Hashimoto H.
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Journal Title
J Hum Genet.
Volume: 61(3)
Pages: 199-206
DOI
Peer Reviewed
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[Journal Article] Detection of low-prevalence somatic TSC2 mutations in sporadic pulmonary lymphangioleiomyomatosis tissues by deep sequencing.2016
Author(s)
Fujita A, Ando K, Kobayashi E, Mitani K, Okudera K, Nakashima M, Miyatake S, Tsurusaki Y, Saitsu H, Seyama K, Miyake N, Matsumoto N.
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Journal Title
Hum Genet.
Volume: 135(1)
Pages: 61-68
DOI
Peer Reviewed
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[Journal Article] Deletions and de novo mutations of SOX11 are associated with a neurodevelopmental disorder with features of Coffin-Siris syndrome.2016
Author(s)
Hempel A, Pagnamenta AT, Blyth M, Mansour S, McConnell V, Kou I, Ikegawa S, Tsurusaki Y, Matsumoto N, Lo-Castro A, Plessis G, Albrecht B, Battaglia A, Taylor JC, Howard MF, Keays D, Sohal AS; DDD collaboration, Kühl SJ, Kini U, McNeill A.
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Journal Title
J Med Genet.
Volume: 53(3)
Pages: 152-162
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Phenotypic spectrum of GNAO1 variants: epileptic encephalopathy to involuntary movements with severe developmental delay.2016
Author(s)
Saitsu H, Fukai R, Ben-Zeev B, Sakai Y, Mimaki M, Okamoto N, Suzuki Y, Monden Y, Saito H, Tziperman B, Torio M, Akamine S, Takahashi N, Osaka H, Yamagata T, Nakamura K, Tsurusaki Y, Nakashima M, Miyake N, Shiina M, Ogata K, Matsumoto N.
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Journal Title
Eur J Hum Genet.
Volume: 24(1)
Pages: 129-134
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] De novo KCNB1 mutations in infantile epilepsy inhibit repetitive neuronal firing.2015
Author(s)
Saitsu H, Akita T, Tohyama J, Goldberg-Stern H, Kobayashi Y, Cohen R, Kato M, Ohba C, Miyatake S, Tsurusaki Y, Nakashima M, Miyake N, Fukuda A, Matsumoto N.
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Journal Title
Sci Rep.
Volume: 5
Pages: 15199
DOI
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Biallelic Mutations in Nuclear Pore Complex Subunit NUP107 Cause Early-Childhood-Onset Steroid-Resistant Nephrotic Syndrome.2015
Author(s)
Miyake N, Tsukaguchi H, Koshimizu E, Shono A, Matsunaga S, Shiina M, Mimura Y, Imamura S, Hirose T, Okudela K, Nozu K, Akioka Y, Hattori M, Yoshikawa N, Kitamura A, Cheong HI, Kagami S, Yamashita M, Fujita A, Miyatake S, Tsurusaki Y, Nakashima M, Saitsu H, Ohashi K, Imamoto N, Ryo A, Ogata K, Iijima K, Matsumoto N.
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Journal Title
Am J Hum Genet.
Volume: 97(4)
Pages: 555-566
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] De novo KIF1A mutations cause intellectual deficit, cerebellar atrophy, lower limb spasticity and visual disturbance.2015
Author(s)
Ohba C, Haginoya K, Osaka H, Kubota K, Ishiyama A, Hiraide T, Komaki H, Sasaki M, Miyatake S, Nakashima M, Tsurusaki Y, Miyake N, Tanaka F, Saitsu H, Matsumoto N.
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Journal Title
J Hum Genet.
Volume: 60(12)
Pages: 739-742
DOI
Peer Reviewed
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[Journal Article] DNA methylation and gene expression dynamics during spermatogonial stem cell differentiation in the early postnatal mouse testis.2015
Author(s)
Kubo N, Toh H, Shirane K, Shirakawa T, Kobayashi H, Sato T, Sone H, Sato Y, Tomizawa S, Tsurusaki Y, Shibata H, Saitsu H, Suzuki Y, Matsumoto N, Suyama M, Kono T, Ohbo K, Sasaki H.
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Journal Title
BMC Genomics.
Volume: 16
Pages: 624
DOI
Peer Reviewed / Open Access
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[Journal Article] De novo KCNT1 mutations in early-onset epileptic encephalopathy.2015
Author(s)
Ohba C, Kato M, Takahashi N, Osaka H, Shiihara T, Tohyama J, Nabatame S, Azuma J, Fujii Y, Hara M, Tsurusawa R, Inoue T, Ogata R, Watanabe Y, Togashi N, Kodera H, Nakashima M, Tsurusaki Y, Miyake N, Tanaka F, Saitsu H, Matsumoto N.
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Journal Title
Epilepsia
Volume: 56(9)
Pages: e121-128
DOI
Peer Reviewed
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[Journal Article] Novel compound heterozygous LIAS mutations cause glycine encephalopathy.2015
Author(s)
Tsurusaki Y, Tanaka R, Shimada S, Shimojima K, Shiina M, Nakashima M, Saitsu H, Miyake N, Ogata K, Yamamoto T, Matsumoto N.
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Journal Title
J Hum Genet.
Volume: 60(10)
Pages: 631-635
DOI
Peer Reviewed
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[Journal Article] Somatic Mutations in the MTOR gene cause focal cortical dysplasia type IIb.2015
Author(s)
Nakashima M, Saitsu H, Takei N, Tohyama J, Kato M, Kitaura H, Shiina M, Shirozu H, Masuda H, Watanabe K, Ohba C, Tsurusaki Y, Miyake N, Zheng Y, Sato T, Takebayashi H, Ogata K, Kameyama S, Kakita A, Matsumoto N.
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Journal Title
Ann Neurol.
Volume: 78(3)
Pages: 375-386
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] GRIN1 mutations cause encephalopathy with infantile-onset epilepsy, and hyperkinetic and stereotyped movement disorders.2015
Author(s)
Ohba C, Shiina M, Tohyama J, Haginoya K, Lerman-Sagie T, Okamoto N, Blumkin L, Lev D, Mukaida S, Nozaki F, Uematsu M, Onuma A, Kodera H, Nakashima M, Tsurusaki Y, Miyake N, Tanaka F, Kato M, Ogata K, Saitsu H, Matsumoto N.
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Journal Title
Epilepsia
Volume: 56(6)
Pages: 841-848
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Mutations in the genes encoding eukaryotic translation initiation factor 2B in Japanese patients with vanishing white matter disease.2015
Author(s)
Shimada S, Shimojima K, Sangu N, Hoshino A, Hachiya Y, Ohto T, Hashi Y, Nishida K, Mitani M, Kinjo S, Tsurusaki Y, Matsumoto N, Morimoto M, Yamamoto T.
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Journal Title
Brain Dev.
Volume: 37(10)
Pages: 960-966
DOI
Peer Reviewed
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[Journal Article] Delineation of clinical features in Wiedemann-Steiner syndrome caused by KMT2A mutations.2015
Author(s)
Miyake N, Tsurusaki Y, Koshimizu E, Okamoto N, Kosho T, Brown NJ, Tan TY, Yap PJ, Suzumura H, Tanaka T, Nagai T, Nakashima M, Saitsu H, Niikawa N, Matsumoto N.
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Journal Title
Clin Genet.
Volume: 89(1)
Pages: 115-119
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] Detecting copy-number variations in whole-exome sequencing data using the eXome Hidden Markov Model: an 'exome-first' approach.2015
Author(s)
Miyatake S, Koshimizu E, Fujita A, Fukai R, Imagawa E, Ohba C, Kuki I, Nukui M, Araki A, Makita Y, Ogata T, Nakashima M, Tsurusaki Y, Miyake N, Saitsu H, Matsumoto N.
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Journal Title
J Hum Genet.
Volume: 60(4)
Pages: 175-182
DOI
Peer Reviewed
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[Journal Article] Two novel homozygous RAB3GAP1 mutations cause Warburg micro syndrome.2015
Author(s)
Imagawa E, Fukai R, Behnam M, Goyal M, Nouri N, Nakashima M, Tsurusaki Y, Saitsu H, Salehi M, Kapoor S, Tanaka F, Miyake N, Matsumoto N.
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Journal Title
Hum Genome Var.
Volume: 2
Pages: 15034
DOI
Peer Reviewed / Open Access
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[Presentation] Detecting copy number variations by analyzing whole exome sequencing data using the eXome Hidden Markov Model2015
Author(s)
S. Miyatake, E. Koshimizu, A. Fujita, R. Fukai, E. Imagawa, C. Ohba, I. Kuki, A. Araki, Y. Makita, T. Ogata, M. Nakashima, Y. Tsurusaki, N. Miyake, H. Saitsu, N. Matsumoto
Organizer
American Society of Human Genetics 2015 Meeting
Place of Presentation
Baltimore(USA)
Year and Date
2015-10-06 – 2015-10-10
Int'l Joint Research
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[Presentation] Somatic mutations in the MTOR gene cause focal cortical dysplasia type IIb2015
Author(s)
M. Nakashima, H. Saitsu, N. Takei, J. Tohyama, M. Kato, H. Kitaura, M. Shiina, H. Sirouzu, H. Masuda, K. Watanabe, C. Ohba, Y. Tsurusaki, N. Miyake, Y. Zheng, T. Sato, H. Takebayashi, K. Ogata, S. Kameyama, A. Kakita, N. Matsumoto
Organizer
American Society of Human Genetics 2015 Meeting
Place of Presentation
Baltimore(USA)
Year and Date
2015-10-06 – 2015-10-10
Int'l Joint Research
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[Presentation] Phenotypic spectrum of GNAO1 variants: epileptic encephalopathy to involuntary movements with severe developmental delay2015
Author(s)
H. Saitsu, R. Fukai, B. Ben-Zeev, Y. Sakai, M. Mimaki, N. Okamoto, Y. Suzuki, Y. Monden, H. Saito, B. Tziperman, M. Torio, S. Akamine, N. Takahashi, H. Osaka, T. Yamagata, K. Nakamura, Y. Tsurusaki, M. Nakashima, N. Miyake, M. Shiina, K. Ogata, N. Matsumoto
Organizer
American Society of Human Genetics 2015 Meeting
Place of Presentation
Baltimore(USA)
Year and Date
2015-10-06 – 2015-10-10
Int'l Joint Research
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