JP2015500825A - バイオ医薬の送達のためのエキソソーム - Google Patents
バイオ医薬の送達のためのエキソソーム Download PDFInfo
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- JP2015500825A JP2015500825A JP2014545356A JP2014545356A JP2015500825A JP 2015500825 A JP2015500825 A JP 2015500825A JP 2014545356 A JP2014545356 A JP 2014545356A JP 2014545356 A JP2014545356 A JP 2014545356A JP 2015500825 A JP2015500825 A JP 2015500825A
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Abstract
Description
本明細書で記載されているように、好ましい実施形態において、エキソソームに組み込まれるタンパク質及び/又はペプチドは抗体又は抗体フラグメントである。本明細書において、「抗体」という語は、抗体全体及び任意の抗原結合フラグメント(すなわち「抗原結合部位」)又はそれらの単鎖を包含する。抗体とは、ジスルフィド結合で相互に連結された少なくとも2つの重(H)鎖及び2つの軽(L)鎖、又はそれらの抗原結合部分を含む糖タンパク質を指す。各重鎖は、重鎖可変領域(本明細書ではVHと略記)及び重鎖定常領域で構成される。各軽鎖は、軽鎖可変領域(本明細書ではVLと略記)及び軽鎖定常領域で構成される。重度及び軽鎖の可変領域は、抗原と相互作用する結合ドメインを含む。VH及びVL領域は、より高度に保存された領域(フレームワーク領域(FR)と呼ばれる。)が散在した超可変領域(相補性決定領域(CDR)と呼ばれる。)にさらに分類することができる。
本発明のエキソソームは所望の細胞型又は組織に対してターゲティングされ得る。このターゲティングは、標的となる細胞の表面で発現する細胞表面部分に結合するターゲティング部分をエキソソームの表面で発現させることによって達成される。典型的には、ターゲティング部分は、エキソソームの表面で通常発現する膜貫通タンパク質との融合タンパク質として発現するペプチドである。
本発明の構築物は任意の適切な方法によって投与され得る。ヒト又は動物の対象に対する投与は、非経口、筋肉内、脳内、血管内(例えば静脈内)、皮下、鼻腔内、心臓内、脳室内、腹腔内又は経皮投与から選択され得る。典型的には、送達の方法は注射によるものである。好ましくは、注射は筋肉内又は血管内(例えば静脈内)注射である。医師は、個々の患者ごとに必要とされる投与経路を決定することができる。
エレクトロポレーション緩衝液(1.15mMリン酸カリウム(pH7.2)、25mM KCl、21%オプティプレップ(Optiprep))中で、ヒト胎児由来腎臓細胞(HEK)エキソソームをフィコエリトリン(PE)結合ヤギ抗ウサギIgG抗体と混合し、ローディングされないままにする(抗体との混合は行ったが、エレクトロポレーションは行わない)か、又は200mVでエレクトロポレートした。次いで、抗体搭載エキソソームをHEK細胞に添加し、2時間インキュベートして575nmで蛍光を測定した。次いで、HEK細胞をリン酸緩衝生理食塩水(PBS)で洗浄し、画像化した。Figure1は、200mVでローディングされたエキソソーム(B)で細胞を処理した場合の、(抗体と混合されたが、エレクトロポレートされていない対照エキソソーム(A)と比較した)PE−抗体シグナルの細胞質内及び核内局在を示す。
ポリヌクレオチド配列:ggctggaccctgaacagcgcgggctatctgctgggcaaaattaacctgaaagcgctggcggcgctggcga aaaaaattctg(配列番号3)によってコードされたトランスポータンペプチド:GWTLNSAGYLLGKINLKALAALAKKIL(配列番号2)を、国際公開第2010/119256号に記載されたLamp2b発現ベクター内に挿入した。
2 Zitvogel L, Regnault A, Lozier A, Wolfers J, Flament C, Tenza D, Ricciardi−Castagnoli P, Raposo G, Amigorena S (1998), Eradication of established murine tumors using a novel cell−free vaccine: dendritic cell−derived exosomes, Nat Med 4:594−600.
3 Hao S, Moyana T, Xiang J (2007), Review: cancer immunotherapy by exosome−based vaccines, Cancer Biother Radiopharm 22:692−703.
4 Valadi H, Ekstrom K, Bossios A, Sjostrand M, Lee JJ, Lotvall JO (2007), Exosome−mediated transfer of mRNAs and microRNAs is a novel mechanism of genetic exchange between cells, Nat Cell Biol 9(6):654−9.
5 Skog J, Wurdinger T, van Rijn S, Meijer DH, Gainche L, Sena−Esteves M, Curry WT Jr, Carter BS, Krichevsky AM, Breakefield XO (2008), Glioblastoma microvesicles transport RNA and proteins that promote tumour growth and provide diagnostic biomarkers, Nat Cell Biol 10(12):1470−6.
6 WO2010/119256
Claims (19)
- エキソソームを含む組成物であって、エキソソームには外因性タンパク質及び/又はペプチドが搭載されている、組成物。
- エキソソームは樹状細胞に由来する、請求項1に記載の組成物。
- 前記タンパク質及び/又はペプチドは、ヒト又は動物の身体に治療を行う方法における使用のためのものである、請求項1又は2に記載の組成物。
- 前記タンパク質及び/又はペプチドは、癌、自己免疫状態、及び/又は臓器若しくは細胞移植拒絶反応の治療及び/又は予防における使用のためのものである、請求項3に記載の組成物。
- エキソソームは、該エキソソームの表面で発現するターゲティング部分を含む、請求項1〜4のいずれか一項に記載の組成物。
- 前記ターゲティング部分は、標的となる細胞上に存在する部分に結合するペプチドを含む、請求項5に記載の組成物。
- エキソソームは、前記ペプチドターゲティング部分を組み込むように修飾されたエキソソーム膜貫通タンパク質を含む、請求項6に記載の組成物。
- エキソソーム膜貫通タンパク質は、Lamp−1、Lamp−2、CD13、CD86、フロチリン、及びシンタキシン−3から選択される、請求項7に記載の組成物。
- エキソソーム膜貫通タンパク質はLamp−2bである、請求項8に記載の組成物。
- in vivoでタンパク質及び/又はペプチドを送達する方法における使用のための組成物であって、前記タンパク質及び/又はペプチドを含有するエキソソームを含み、エキソソームは未熟樹状細胞に由来する、組成物。
- 外因性タンパク質及び/又はペプチドは抗体又はそのフラグメントである、請求項1〜10のいずれか一項に記載の組成物。
- 前記抗体又はそのフラグメントはモノクローナル抗体又はそのフラグメントである、請求項11に記載の組成物。
- エキソソームにタンパク質及び/又はペプチドを搭載する方法であって、エキソソームの組成物を用意するステップと、エレクトロポレーションによってエキソソームにタンパク質及び/又はペプチドを搭載するステップと、を含む方法。
- エレクトロポレーションは20〜100v/cmの電圧で行われる、請求項13に記載の方法。
- エレクトロポレーションは200mVの電圧で行われる、請求項13に記載の方法。
- エキソソームにタンパク質及び/又はペプチドを搭載する方法であって、エキソソームの組成物を用意するステップと、カチオン性リポソームトランスフェクション剤を使用して、トランスフェクションによってエキソソームにタンパク質及び/又はペプチドを搭載するステップと、を含む方法。
- 前記タンパク質及び/又はペプチドは抗体又はそのフラグメントである、請求項13〜16のいずれか一項に記載の方法。
- 前記抗体又はそのフラグメントはモノクローナル抗体又はそのフラグメントである、請求項17に記載の方法。
- エキソソームは樹状細胞に由来する、請求項13〜18のいずれか一項に記載の方法。
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JP2021107463A (ja) * | 2015-06-10 | 2021-07-29 | ボード オブ リージェンツ, ザ ユニバーシティ オブ テキサス システムBoard Of Regents, The University Of Texas System | 疾患の処置のためのエキソソームの使用 |
JP2018520125A (ja) * | 2015-06-10 | 2018-07-26 | ボード・オブ・リージエンツ,ザ・ユニバーシテイ・オブ・テキサス・システム | 疾患の処置のためのエキソソームの使用 |
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JP2019529400A (ja) * | 2016-09-09 | 2019-10-17 | コーネル・ユニバーシティーCornell University | 硝子体小胞中の核酸、タンパク質及び小分子の送達方法 |
JP7253762B2 (ja) | 2017-12-27 | 2023-04-07 | 慈濟大學 | タンパク質を表面に発現させた小胞によるオートファジー細胞およびアポトーシス細胞への薬剤送達 |
JP2019116441A (ja) * | 2017-12-27 | 2019-07-18 | 慈濟大學Tzu Chi University | タンパク質を表面に発現させた小胞によるオートファジー細胞およびアポトーシス細胞への薬剤送達 |
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KR20190087331A (ko) * | 2018-01-15 | 2019-07-24 | 연세대학교 산학협력단 | 심장 표적 단백질을 함유한 마이크로베지클을 포함하는 활성 성분을 심장에 전달하기 위한 약학적 조성물 및 이를 이용한 방법 |
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JP2020023503A (ja) | 2020-02-13 |
JP6145595B2 (ja) | 2017-06-14 |
JP2017119701A (ja) | 2017-07-06 |
EP2788019A2 (en) | 2014-10-15 |
EP3192526A3 (en) | 2017-08-30 |
CN104053451A (zh) | 2014-09-17 |
EP3192526A2 (en) | 2017-07-19 |
WO2013084000A3 (en) | 2013-10-10 |
EP2788019B1 (en) | 2017-04-05 |
US20210346504A1 (en) | 2021-11-11 |
US11103586B2 (en) | 2021-08-31 |
WO2013084000A2 (en) | 2013-06-13 |
EP3563866A1 (en) | 2019-11-06 |
US20140356382A1 (en) | 2014-12-04 |
ES2625863T3 (es) | 2017-07-20 |
GB201121070D0 (en) | 2012-01-18 |
DK2788019T3 (en) | 2017-06-19 |
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