JP2022519326A - 診断および治療目的のためのエキソソーム関連マイクロバイオームの単離および検出 - Google Patents
診断および治療目的のためのエキソソーム関連マイクロバイオームの単離および検出 Download PDFInfo
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Abstract
Description
本出願は、2019年2月8日に出願された米国仮出願第62/802,994号に対する優先権を主張し、その内容全体が参照により本明細書に援用される。
I.エキソソーム
A.細胞培養物からエキソソームを採取するための例示的なプロトコル
B.血清サンプルからエキソソームを抽出するための例示的なプロトコル
II.マイクロバイオーム
III.疾患の診断、予後判定、および処置
IV.キットおよび診断
V.実施例
5人の健常ヒト対象から得た血清サンプル(1mL)からエキソソームを単離した。単離されたDNAがいずれも内腔局在であることを確実にするために、単離されたエキソソームをDNA抽出前にDNAseで処理し、遊離して循環しているあらゆる核酸を除去した。DNA抽出に続いて、このDNAを、細菌の16SリボソームRNA遺伝子のためのユニバーサルプライマー(27F-B:AGRGTTYGATYMTGGCTCAG(配列番号1)、1492R:GGYTACCTTGTTACGACTT(配列番号2);16S rRNA遺伝子について約1500bp)を用いてPCR増幅した。E.coli(大腸菌)DNAを陽性対照として使用した。ヒト細胞株Panc-1および線維芽細胞BJから単離されたDNA、ならびにブランク(テンプレートDNAなし)を陰性対照として使用した。増幅されたDNAを、ゲル電気泳動を用いて可視化した。このプロトコルを2回繰り返し、得られたデータを図1A~Bに示す。
参考文献
以下の参考文献は、本明細書に記載されているものを補足する、例示的な手順上またはその他の詳細を提供する範囲で、参照により本明細書に具体的に援用される。
米国特許第9,921,223号
Claims (25)
- 患者におけるマイクロバイオームを検出する方法であって、
(a)患者から体液サンプルを得ること;
(b)前記体液サンプルのエキソソーム画分を単離すること;および
(c)前記エキソソーム画分中に存在する微生物巨大分子を検出すること
を含む、方法。 - 前記マイクロバイオームが、マイクロバイオームシグネチャーである、請求項1に記載の方法。
- 前記マイクロバイオームが、2つまたはそれを超える細菌種を含む、請求項1に記載の方法。
- 前記微生物巨大分子が、微生物核酸分子である、請求項1に記載の方法。
- 前記微生物核酸分子が、微生物DNA分子である、請求項4に記載の方法。
- 前記微生物核酸分子が、微生物16S rRNA遺伝子である、請求項5に記載の方法。
- 前記微生物核酸分子が、微生物RNA分子である、請求項4に記載の方法。
- 前記微生物巨大分子が、微生物タンパク質である、請求項1に記載の方法。
- 前記微生物シグネチャーが、疾患のリスクファクターを指し示す、請求項2に記載の方法。
- 前記微生物シグネチャーが、疾患と関係することが知られている微生物シグネチャーと比較される、請求項9に記載の方法。
- 前記微生物シグネチャーが、前記患者における疾患を指し示す、請求項10に記載の方法。
- 前記患者が、健常患者である、請求項1に記載の方法。
- 前記患者が、寛解状態にあり、前記方法が、再発を検出する方法である、請求項1に記載の方法。
- 前記体液サンプルが、血液、リンパ、唾液、喀痰、尿、脳脊髄液、骨髄吸引物、眼滲出液/涙、または血清である、請求項1に記載の方法。
- 前記疾患が、がん、遺伝子刷り込み障害、神経障害、自己免疫疾患、または代謝障害である、請求項11に記載の方法。
- 前記疾患が、がんであり、前記方法が、前記エキソソーム画分からグリピカン1含有エキソソームを単離することをさらに含む、請求項11に記載の方法。
- 前記がんが、乳がん、肺がん、頭頸部がん、前立腺がん、食道がん、気管がん、脳がん、肝臓がん、膀胱がん、胃がん、膵臓がん、卵巣がん、子宮がん、子宮頸がん、精巣がん、結腸がん、直腸がん、または皮膚がんである、請求項16に記載の方法。
- 前記患者に治療剤を投与することをさらに含む、請求項11に記載の方法。
- 前記疾患が、がんであり、前記治療剤が、抗がん療法である、請求項18に記載の方法。
- 前記患者の前記診断を報告することをさらに含む、請求項11に記載の方法。
- 報告することが、書面報告書または電子報告書を作成することを含む、請求項20に記載の方法。
- 前記報告書を、前記患者、医師、病院、または保険会社に提供することをさらに含む、請求項21に記載の方法。
- 前記患者が、ヒトである、請求項1に記載の方法。
- 前記方法を2回目に実施することをさらに含む、請求項1に記載の方法。
- 前記2回目が、前記方法を最初に実施してから、少なくとも1日後、1週間後、または1か月後である、請求項24に記載の方法。
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PCT/US2020/017224 WO2020163724A1 (en) | 2019-02-08 | 2020-02-07 | Isolation and detection of exosome-associated microbiome for diagnostic and therapeutic purposes |
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