JP2016171802A - 患者の子宮内膜の受容性を評価するための方法 - Google Patents
患者の子宮内膜の受容性を評価するための方法 Download PDFInfo
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Abstract
【解決手段】i)患者から得られた子宮内膜生検試料中の11の遺伝子の発現レベルの測定からなる工程と、該遺伝子がMFAP5、ANGPTL1、PROK1、NLF2、LAMB3、BCL2L10、CD68、TRPC4、SORCS1、FSTおよびKRT80であり、ii)子宮内膜生検試料中の遺伝子の発現レベルを対照と比較する工程と、ここで、子宮内膜生検試料と対照との間の遺伝子の発現レベルの差の検出が子宮内膜が受容性であるかどうかを示す、を含む、患者の子宮内膜の受容性を評価するための方法。
【選択図】なし
Description
本発明者らは、着床の窓の期間中にヒトの子宮内膜で発現して、このようなマーカーとして用いることができる遺伝子を特定することを目的とした。男性不妊症因子における新しい卵細胞質内精子注入法(ICSI)の試みに先行して、一連の正常な応答者の患者(n=31)が、同一の自然周期の分泌期前期(LH+2)および分裂期中期(LH+7)の期間中に子宮内膜の生検を受けた(n=62)。試料は、DNAマイクロアレイを用いて解析して、マイクロアレイの解析は、各患者について分泌期前期および中期の段階の対にした試料により実施したが、これは患者間のばらつきを最小限にするために必須である。子宮内膜受容性の新しいマーカーを特定するために、本発明者らは、先ず、LH+2およびLH+7の試料群の間で著しく変化した遺伝子リストと、同一の自然子宮内膜周期段階を比較した他の4つのトランスクリプトーム試験Carson et al., 2002; Riesewijk et al., 2003; Mirkin et al., 2005; Talbi et al., 2006)から得られた遺伝子リストの共通項を求めて、着床の窓の期間中に特異的に変化する、797の遺伝子を含む本試験独自の遺伝子リストを特定した(図1)。これらのデータ(797遺伝子)の階層的なクラスタリングの結果、このリストが2つの子宮内膜試料群に明確に分離することが示された。この分離を図1に例証する。面白いことに、これらの遺伝子の大部分は着床の窓の期間中にアップレギュレーションされた(アップレギュレーションされた遺伝子746、ダウンレギュレーションされた遺伝子51)(図1)。
i)本発明の方法を実施することによって、患者の子宮内膜の受容性を評価する工程。
iii)工程i)において子宮内膜が受容性と判断された時点で、胚を移植する工程。
実施例1
材料および方法:子宮内膜の受容性の新しいバイオマーカーの特定(Haouzi et al., 2009)(図1)
患者の特徴および子宮内膜の生検:このプロジェクトは施設評価委員会の承認を得ている。試験集団は、書面によるインフォームドコンセントの後に補充された31名の患者(年齢 30.4歳±3.2歳)を含んだ。すべての患者が、Day 3に正常な血清FSH、LH、エストラジオールおよびAMHの値を示して、先行の1回目のICSI試行において正常な応答者であり、それらは、男性の不妊要因のICSIにおいて調べられた。2回目のICSI試行に先行する同じ自然周期の期間中、LHピーク後のDay 2(LH+2)およびDay 7(LH+7)にすべての女性について2回の子宮内膜生検試料を採取した。LHのサージは、月経の初日に基づいて患者本人が推定した。LHの時期が正確であることを確認するための組織学的な分析は実施しなかった。従って、月経の初日から1日の遅延の可能性は排除できない。各生検試料は、PBSで洗って、RLT RNA抽出緩衝液(RNeasy kit, Qiagen, Valencia, CA, USA)に入れて−80℃で凍結させた。
子宮内膜受容性の関数としての遺伝子発現プロフィール:先ず、LH+2およびLH+7の試料の間で変動係数(≧40%)およびなし/ありの「検出コール」(少なくとも15の試料においてあり)を用いた選択を実施して、約16,200のプローブセットを示した。続いて、本発明者らは、LH+2およびLH+7の試料群の間でSAM解析を実施した(LH+2対LH+7、対の試料の解析)。これらの2群の間で1012の遺伝子が有意に変化して、LH+7の試料群では945のアップレギュレーションされた遺伝子および67のダウンレギュレーションされた遺伝子が含まれた(倍率変化 ≧2、およびP値 <0.05)。
本発明者らのマイクロアレイ解析により、本発明者らは、ヒト子宮内膜受容性の一連のバイオマーカーを特定して、その中から、11の候補であるLAMB3、MFAP5、ANGPTL1、EG−VEGF(PROK1)、NLF2、FST、KRT80、BCL2L10、CD68、TRPC4およびSORCS1を選択した。
本発明の一つの態様に従って、患者の子宮内膜の受容性の評価は、自然周期の着床の窓(LH+7)の期間中における11のバイオマーカー(Win Test:窓着床試験)のmRNAの発現の測定からなる第1の工程(図2)、ならびに(i)患者が着床の窓の遅延を示して、そして、この場合はWin Testが着床の窓の検出に役立つ;(ii)Win Testによって患者が受容性の子宮内膜を呈していないことを確認することを可能として、そして、この場合は養子縁組の手順に向けて調整されるという2つのシナリオを含む第2の工程(図3:IVF手順期間中の患者ケアマネジメントの結果)を含む。
発明の一つの態様に従って、自然周期および刺激された周期で同一患者に由来する遺伝子発現を比較した結果、大半のケース(86%)において中等度に変化した受容性または少数のケース(14%)においてCOHプロトコール期間中に大きく変化した受容性のいずれかに関連する子宮内膜のプロフィールが明らかとなった(図4)。本発明は、Win Testの2つの結果を提供する:i)IVF手順の期間中は新鮮な胚の移植を再考することができる。胚の凍結によってIVFの試行を省くことができて、胚の移入は自然周期の遅い時期に実施することができる;ii)複数回の着床不全の患者では、子宮内膜プロフィールの分析(Win test)によってCOHプロトコール中の大きく変化したプロフィールを明らかにすることができて、臨床医がIVF刺激プロトコールを修正させるか、あるいは自然周期中のより遅い時期に胚の移植を実施するか、または患者を養子縁組の手順に向かわせることを促す(図5)。
本発明者らは、双方のプロトコール(GnRHアンタゴニストおよびアゴニスト)が子宮内膜の受容性に異なる影響を及ぼすことを説明している。患者ケアマネジメントに関する質問は、治療中の異なるGnRH類似体の影響および患者の不均一な反応に関して、「どのプロトコールを使用したか?」ということである。
本発明の一つの態様に従って、Win Testは、婦人科疾患を有する女性の子宮内膜受容性を評価するためのマーカーとして使用することができる。これらの患者における低妊孕率の考え得る原因である、いくつかの婦人科疾患(例えば、子宮内膜症および腺筋症)と異常な子宮内膜受容性との潜在的な関連性がWin Testで調べることができる(図7)。
本発明の一つの態様に従って、Win testは、子宮内膜の成熟のためのホルモン療法の改善に用いることができる。Win Testによって、自然周期に比べて、ホルモン補充療法(エストロゲンおよびプロゲステロン療法)下での卵母細胞レシピエント患者の着床の窓の時期における変化した子宮内膜のプロフィールが明らかとなる(図8)。
表2:
本出願を通じて、様々な参照が本発明が関連する現在の技術水準を説明している。これらの参考の開示内容を引用例として本明細書に取り込む。
Claims (4)
- 患者の子宮内膜の受容性を評価するための方法であって、患者から得られた子宮内膜生検試料中の11の遺伝子の発現レベルの測定からなる工程を含み、該遺伝子がMFAP5、ANGPTL1、PROK1、NLF2、LAMB3、BCL2L10、CD68、TRPC4、SORCS1、FSTおよびKRT80である、方法。
- 子宮内膜生検試料中の遺伝子の発現レベルの対照との比較からなる工程をさらに含み、子宮内膜生検試料と対照との間の遺伝子の発現レベルの差の検出が子宮内膜が受容性であるかどうかを示す、請求項1記載の方法。
- 請求項1または2記載の方法に従って、受容性と考えられた子宮内膜から入手可能な子宮内膜外植片。
- 子宮内膜−胚同時培養のための子宮内膜同時培養の系を調製するための、請求項3記載の子宮内膜外植片の使用。
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| FR2987446B1 (fr) * | 2012-02-28 | 2016-01-01 | Univ Nice Sophia Antipolis | Test diagnostic de la resistance a l'azacitidine |
| EP2687851A1 (en) * | 2012-07-20 | 2014-01-22 | Matricelab Innove | Method for increasing implantation success in assisted fertilization |
| ES2898849T3 (es) * | 2014-10-28 | 2022-03-09 | Koushi Yamaguchi | Medicamento para mejorar el síndrome de hipertensión inducida por el embarazo |
| US11541040B2 (en) | 2014-10-28 | 2023-01-03 | Kouchi Yamaguchi | Medicine for improving state of pregnancy, and use thereof |
| CN107924707B (zh) * | 2015-06-12 | 2022-04-19 | 格尼亚Ip控股私人有限公司 | 患者和生物样本识别和追踪的方法和系统 |
| CN105784983B (zh) * | 2016-01-13 | 2017-10-31 | 深圳中山生殖与遗传研究所 | 一种评估子宫内膜容受性的试剂盒及其使用方法 |
| US10918327B2 (en) | 2017-02-02 | 2021-02-16 | Coopersurgical, Inc. | Compositions and methods for determining receptivity of an endometrium for embryonic implantation |
| IT201700045856A1 (it) * | 2017-04-27 | 2018-10-27 | Molipharma Srl | Kit di determinazione della recettivita’ endometriale |
| EP3569718A1 (en) * | 2018-05-16 | 2019-11-20 | Integrated Genetic Lab Services SLU | Kit and method for determining the receptivity status of an endometrium |
| AU2021218895A1 (en) * | 2020-02-10 | 2022-09-15 | ObsEva S.A. | Biomarkers for oxytocin receptor antagonist therapy |
| CN111778326B (zh) * | 2020-07-14 | 2021-10-22 | 和卓生物科技(上海)有限公司 | 用于子宫内膜容受性评估的基因标志物组合及其应用 |
| JP2023136665A (ja) * | 2022-03-17 | 2023-09-29 | 国立大学法人 東京大学 | 着床能の検出方法および着床障害の予測方法 |
| EP4311862A1 (en) | 2022-07-29 | 2024-01-31 | Ivi Rma Global, Sl. | Methods for detection of embryo implantation failure of endometrial origen |
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| US6196965B1 (en) * | 1998-05-21 | 2001-03-06 | Cryofacets, Inc. | Compositions methods and devices for embryo implantation for in vitro fertilization |
| US7354742B2 (en) * | 2002-02-22 | 2008-04-08 | Ortho-Mcneil Pharmaceutical, Inc. | Method for generating amplified RNA |
| FR2876701B1 (fr) * | 2004-10-15 | 2010-09-17 | Genevrier Lab | Procede de preparation d'un systeme de culture d'endometre autologue pour la co-culture endometre-embryon |
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| US9260748B2 (en) | 2016-02-16 |
| PT2576825T (pt) | 2018-02-02 |
| JP6219164B2 (ja) | 2017-10-25 |
| ES2656962T3 (es) | 2018-03-01 |
| EP2576825A1 (en) | 2013-04-10 |
| EP2576825B1 (en) | 2017-11-08 |
| JP2013528052A (ja) | 2013-07-08 |
| US20130072748A1 (en) | 2013-03-21 |
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