JP6932765B2 - 発育良好な胚盤胞をスクリーニングする非侵襲的な検出方法 - Google Patents
発育良好な胚盤胞をスクリーニングする非侵襲的な検出方法 Download PDFInfo
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Description
本発明では、ガードナー分類システムにより分類されたグレードが最も高いグレードAAの胚盤胞と、グレードが劣るグレードCC、BCまたはCBの胚盤胞とを収集した。これらの胚盤胞は協力部門である北京大学第三医院及び広州医科大学付属第三医院から提供されるもので、患者に生殖補助手術を行う際に、体外で複数の胚盤胞を同時に培養した後、形態が最も良好な胚盤胞を選択して移植し、患者本人の許可を得て、同意書にサインして頂いた後、寄付していただいた残りの胚盤胞を当該課題の科学研究に使用した。各胚盤胞に対して、単一塩基解像度にて全ゲノムのメチル化シーケンシングを行った。本発明の「one−tube」実験方法の詳細は下記の通りである。
Claims (6)
- 検出待ちの胚盤胞の栄養外胚葉細胞のゲノムに対してメチル化検出を行い、そのメチル化レベルが、基準となるガードナー分類システムにより判定された形態良好な胚のメチル化レベル及びパターンの違いがより少ない場合、検出待ちの胚盤胞の質が良好であり、前記ガードナー分類システムにより判定された形態良好な胚がグレードAA、AB、BA、BBの胚盤胞であることを特徴とする、発育良好な胚盤胞をスクリーニングする非侵襲的な検出方法。
- 更に、ガードナー分類システムにより判定された形態良好な胚のメチル化パターンを基準とすることを特徴とする、請求項1に記載の非侵襲的な検出方法。
- 更に、メチル化シーケンシングの結果により、胚盤胞の各染色体のコピー数が正常であるかどうかを判断し、標準の二倍体である場合、検出待ちの胚盤胞の染色体が正常であることを特徴とする、請求項1または2に記載の非侵襲的な検出方法。
- 検出待ちの胚盤胞の栄養外胚葉細胞のゲノムに対してメチル化検出を行い、そのメチル化レベルが、基準となるガードナー分類システムにより判定された形態良好な胚のメチル化レベル及びパターンの違いがより少ない場合、検出待ちの胚盤胞の質が良好であり、前記ガードナー分類システムにより判定された形態良好な胚がグレードAA、AB、BA、BBの胚盤胞であることを特徴とする、妊娠率が高い胚盤胞をスクリーニングする非侵襲的な検出方法。
- 胚盤胞のメチル化シーケンシングのキットであって、メチル化レベルが、基準となるガードナー分類システムにより判定された形態良好な胚のメチル化レベル及びパターンの違いがより少ない場合、検出待ちの胚盤胞の質が良好であり、前記ガードナー分類システムにより判定された形態良好な胚がグレードAA、AB、BA、BBの胚盤胞であることを特徴とし、検出対象が胚盤胞の栄養外胚葉細胞である、発育良好な胚盤胞をスクリーニングするキット。
- 胚盤胞のメチル化シーケンシングのキットであって、
検出待ちの胚盤胞のメチル化シーケンシングの結果が、すべての染色体が標準二倍体であることを示す場合、検出待ちの胚盤胞が発育良好な胚盤胞であることを特徴とる、請求項5に記載のキット。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201610225668.5A CN105861658B (zh) | 2016-04-12 | 2016-04-12 | 一种筛选优良发育囊胚的无创检测方法 |
CN201610225668.5 | 2016-04-12 | ||
PCT/CN2017/080102 WO2017177900A1 (zh) | 2016-04-12 | 2017-04-11 | 一种筛选优良发育囊胚的无创检测方法 |
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JP2019513417A JP2019513417A (ja) | 2019-05-30 |
JP2019513417A5 JP2019513417A5 (ja) | 2020-10-15 |
JP6932765B2 true JP6932765B2 (ja) | 2021-09-08 |
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CN107419029A (zh) * | 2017-09-18 | 2017-12-01 | 北京积水潭医院 | 一种筛选优质囊胚的试剂盒 |
CN109943628A (zh) * | 2018-12-11 | 2019-06-28 | 北京中科遗传与生殖医学研究院有限责任公司 | 利用DedscRRBS分析法对活检细胞进行PGS及甲基化分析的方法 |
CN112582022B (zh) * | 2020-07-21 | 2021-11-23 | 序康医疗科技(苏州)有限公司 | 用于无创胚胎移植优先级评级的系统和方法 |
CN112574944A (zh) * | 2020-12-14 | 2021-03-30 | 广州医科大学附属第三医院(广州重症孕产妇救治中心、广州柔济医院) | 基于体外诱导eps发育形成类囊胚结构的方法 |
CN114480629B (zh) * | 2022-04-15 | 2023-02-07 | 北京大学第三医院(北京大学第三临床医学院) | 一种同时实现囊胚非整倍体检测和高着床潜能筛选的方法 |
CN115612723B (zh) * | 2022-09-26 | 2023-07-14 | 广州女娲生命科技有限公司 | 植入前胚胎的筛选方法 |
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ES2858849T3 (es) | 2021-09-30 |
CN105861658B (zh) | 2020-07-28 |
HUE054193T2 (hu) | 2021-08-30 |
PT3444357T (pt) | 2021-02-25 |
EP3444357A1 (en) | 2019-02-20 |
WO2017177900A1 (zh) | 2017-10-19 |
CN105861658A (zh) | 2016-08-17 |
PL3444357T3 (pl) | 2021-06-14 |
JP2019513417A (ja) | 2019-05-30 |
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