JP4663980B2 - B型肝炎プレs1由来合成ポリペプチド及びその使用 - Google Patents
B型肝炎プレs1由来合成ポリペプチド及びその使用 Download PDFInfo
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- JP4663980B2 JP4663980B2 JP2003517281A JP2003517281A JP4663980B2 JP 4663980 B2 JP4663980 B2 JP 4663980B2 JP 2003517281 A JP2003517281 A JP 2003517281A JP 2003517281 A JP2003517281 A JP 2003517281A JP 4663980 B2 JP4663980 B2 JP 4663980B2
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Description
X−Y−Z (I)
(式中:
−Xはアミノ酸、例えばメチオニンであるか、又は存在せず;
−Yは配列番号2に示すプレS1領域のアミノ酸配列2〜48であるか、あるいはこの配列のN末端及び/又はC末端が切断された形態であるか、あるいはそれらの変異体であり;
−Zは、Yの最後の残基の−CO−基と結合した、配列番号3に示すプレS1領域由来の1〜30個連続したアミノ酸を含んで成るアミノ酸配列であるか、あるいは存在しない)
のアミノ酸配列を有しており、前記ポリペプチドは、疎水性部分を有するように任意に化学的に修飾される。
Myr-GQNLSTSNPLGFFPDHQLDPAFRANTANPDWDFNPNKDTWPDANKVG (Myr 248, 配列番号7)。
−肝生検又は肝細胞と本発明のポリペプチドとを、肝細胞の表面で発現する受容体に対し前記ポリペプチドを結合させるのに十分な条件で、且つ十分な期間、接触させ、
−受容体に対する前記ポリペプチドの結合を検出し;そして
−前記受容体を同定すること、
から成る段階を含んで成る。
−前記ポリペプチドと、生体試料中に存在し、且つHBVウイルス粒子のプレS1領域のフラグメントに対する抗体との間に複合体を形成させるのに十分な条件で、且つ十分な期間、接触させ;
−その存在がHBV感染を示している、前記複合体を検出すること、
から成る段階を含んで成る方法、を提供する。
a)HBV感染可能な細胞培養の樹立
正常な成人ヒト肝臓の断片は、肝転移のための肝切除を受けている患者から得られた(当該断片は、巨視的に正常な肝臓中の転移から距離を置いて採取した)。この生検材料の利用は、フランス国の法律に従ったものであり、且つフランス国倫理委員会の基準を満たしたものである。肝細胞は、Guguen-Guillouzo及びGuillouzoの手法によって単離され、そして3.5x10-6Mヒドロコルチゾンヘミサクシネート、2mML−グルタミン、1L当たり50mgのゲンタマイシン、5%ジメチルスルホキシド、5%成人ヒト血清、及び5% FCSを添加したH培地中で培養された。接種から3日後、細胞を感染させた。
感染性の接種材料として、HepG2クローン2.2.15細胞の50倍濃縮した培養液を使用し、これは無制限の供給及び一定の品質のためである。
ポリペプチド競合アッセイは、感染源の添加の前に、細胞を解析済みのポリペプチドと一緒に37℃で30分間プレインキュベートすることによって実施された。
−HBsAgアッセイ
HBsAgは、Bio-Rad Laboratoriesから購入したEILSAキット(Monolisa AgHBs plus)によって前記溶液中で検出された。値はng/ml上清及びコントロールのパーセント(ペプチド無し)で表す。
全細胞RNAは、Total SV RNAキット(Promega, France)で抽出され、1.5%アガロースゲル上で分離され、そして標準的なノーザンブロット法(Sambrook et al., 1989)によって解析された。フィルター上に移動したRNA量の調整は、メチレンブルー染色後に実施された。ハイブリダイゼーションは、P32標識したHBV DNAを用いて実施された。
a)HBV感染阻害に対するプレS1合成ペプチドのミリストイル化の影響
突然変異実験は既に、プレS1領域の一部(アミノ酸(AA)3−77)がHBVの感染に必須であることを示している(Le Seyec et al., 1999)。尚、我々も、AA2であるグリシン残基のミリストイル化がまた、AA1であるメチオニン残基の除去と関連して重要であることを証明した(Gripon et al., 1995)。従って、我々は、ミリストイル化されたグリシンを有するアミノ酸2−77を含んで成るペプチドがHBV感染過程に干渉しうると主張してきた。この仮説を評価するために、2つのペプチド:PreS 1-78及びMyr PreS 2-78が合成された。続いて、これらのペプチドは、ヒト肝細胞培養液の感染過程の前及びその間に添加され、感染レベルは感染細胞のHBsAg分泌を測定することによって評価した。図1は、ミリストイル化されてないペプチドが、1μMにおけるHBV感染に対してごくかすかな作用を有しているが、同量のミリストイル化ペプチドがほぼ完全にそれを無効にし、より低量では部分的に阻害であったことを示す。
ヒト肝細胞は、HBVのLタンパク質のプレS1ドメインの一部に相当するミリストイル化された、又はミリストイル化されてないペプチドの存在下でHBV感染された。ペプチド濃度は0.8〜800nMの範囲とした。図2は、ミリストイル化され、切断されたペプチドの阻害活性を示す。ミリストイル化されてないペプチドで得られた結果を表1(後述)に示す。
近年発見された霊長類のヘパドナウイルスである、ウォーリーモンキー(Wolly Monkey)B型肝炎ウイルス(WMHBV)は、チンパンジー及びヒト肝細胞一次培養物についてほぼ完全に感染性を示さなかった。WMHBVのプレS 1-78ポリペプチド配列は、最初のHBV由来ペプチドと66%の配列同一性を示す。我々は、ヒト細胞のHBV感染に対するWMHBV由来Myr 2-48ペプチド(配列番号14)の阻害活性を研究してきた。
アヒルは、DHBV及びアヒルプレS Myr2-41(DpreS2-41myr)、サギプレS Myr2-44(HepreS2-44myr)、ヒトプレS Myr2-68(HupreS2-68myr)、アヒルプレS Myr2-21(DpreS2-21myr)又は蒸留水を同時に注射される。感染動物のウイルス血症は、感染後5、9、15及び28日目に、ウイルスDNAのドットブロット解析によって評価される。図5に示した結果は、ウイルスDNAが蒸留水で処理されたコントロール動物において検出されたことを証明し、このことは、これらの動物の感染の成功を示唆している。これと反対に、一過性のウイルス血症は、DpreS2-41myr又はDpreS2-21myrのいずれかで処理されたアヒルにおいて、感染後9日目又は15日目に観察され得る。28日目に、ウイルスDNAは減少し、又はもはや検出不可能となり、これらのことは、当該動物がウイルスを排除したことを示唆する。この解析は、図6において示したウェスタンブロット解析によって更に支持され、これは、DHBVのLタンパク質がDpreS2-41myr又はDpreS2-21myrのいずれかで処理されたアヒルにおいて感染後35日目に検出されないことを示している。
Claims (11)
- 式X−Y−Zのアミノ酸配列
(式中:
−Xはアミノ遊離基、若しくはアミノ酸、又は存在せず;
−Yは配列番号2のアミノ酸配列であり;
−Zは、Yの最後の残基の−CO−基と結合した、アミノ基又は配列番号3に示すプレS1領域由来の1〜30個連続したアミノ酸を含んで成るアミノ酸配列であるか、あるいは存在しない)、あるいはHBV菌株アルファ1、HBV菌株LSH、ウッドチャックHBV、ヨウモウザルHBV、又はHBVサブタイプad, adr, adw, adyw, ar若しくはayw由来の前記配列X−Y−Zに相当するアミノ酸配列から成る、単離された合成ポリペプチドであって、
N末端に疎水性部分を有することで化学的に修飾されているポリペプチド、あるいは、上記アミノ酸配列のいずれかの類似体であって、HBV感染に対する阻害活性を有しており、1個の保存的アミノ酸置換がなされている類似体。 - 前記疎水性部分がミリスチル基である、請求項1に記載の単離されたポリペプチド。
- 配列番号2のアミノ酸1がミリストイル化されている、請求項2に記載の単離されたポリペプチド。
- 配列番号4,5,7又は14のアミノ酸配列から成る、請求項1〜3のいずれか1項に記載の単離されたポリペプチド。
- 配列番号8又は10のアミノ酸配列から成る、単離されたポリペプチド。
- 薬物としての、請求項1〜5のいずれか1項に記載のポリペプチド。
- 請求項1〜5のいずれか1項に記載のポリペプチド及び医薬として許容される担体を含んで成る医薬組成物。
- HBV感染の阻害のための、請求項7に記載の医薬組成物。
- 肝細胞に対するHBV粒子の結合及び/又は内部移行の予防のための、請求項7に記載の医薬組成物。
- HBVによる肝細胞感染のin vitroでの阻害方法であって、請求項1〜5のいずれか1項に記載のポリペプチドを用いることを含んで成る方法。
- HBVの付着及び/又は侵入に関与する肝細胞受容体のin vitroでの同定方法であって、
a)肝生検又は肝細胞と請求項1〜5のいずれか1項に記載のポリペプチドとを、肝細胞の表面で発現した受容体に対し前記ポリペプチドを結合させるのに十分な条件で、且つ十分な期間、接触させる段階、
b)受容体に対する前記ポリペプチドの結合を検出する段階;及び
c)前記受容体を同定する段階、
を含んで成る方法。
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PCT/IB2002/002915 WO2003012107A1 (en) | 2001-07-27 | 2002-07-26 | Hepatitis b virus pre-s1 derived synthetic polypeptides and uses thereof |
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CN102015753A (zh) * | 2008-01-25 | 2011-04-13 | 海德堡吕布莱希特-卡尔斯大学 | 乙肝病毒(HBV)的疏水性修饰的preS-衍生肽及其作为载体将化合物特异性递送到肝脏的用途 |
WO2009092396A1 (en) * | 2008-01-25 | 2009-07-30 | Universitätsklinikum Heidelberg | Hydrophobic modified pres-derived peptides of hepatitis b virus (hbv) and their use as hbv and hdv entry inhibitors |
CN104910365B (zh) * | 2014-03-13 | 2019-02-22 | 上海吉贝医药科技有限公司 | 靶向脂质体的制备及其应用 |
EP3298038B1 (en) | 2015-05-22 | 2021-08-04 | Huahui Health Ltd. | Anti-pre-s1 hbv antibodies |
AU2018264581B2 (en) | 2017-05-11 | 2022-05-19 | Zentrum Für Forschungsförderung In Der Pädiatrie Gmbh | Concept for the treatment of monogenetic disorders |
CA3145057A1 (en) * | 2019-07-20 | 2021-01-28 | Wenhui Li | A method of treating hbv infection by using anti-pre-s1 hbv antibodies |
EP3804750A1 (en) | 2019-10-10 | 2021-04-14 | Universität Heidelberg | Conjugate compounds for preventing and/or treating hbv and/or hdv infections, liver diseases and for targeting ntcp |
CN115160433B (zh) * | 2022-06-28 | 2023-04-07 | 吉林大学 | 人源化hbv b和c基因型前s1蛋白抗体及其应用 |
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WO1999015671A1 (en) * | 1997-09-19 | 1999-04-01 | Medeva Europe Limited | Hepatitis b virus polypeptides |
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WO2009092396A1 (en) | 2008-01-25 | 2009-07-30 | Universitätsklinikum Heidelberg | Hydrophobic modified pres-derived peptides of hepatitis b virus (hbv) and their use as hbv and hdv entry inhibitors |
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2001
- 2001-07-27 EP EP01402048A patent/EP1281761A1/en not_active Withdrawn
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2002
- 2002-07-26 ES ES02758669T patent/ES2399356T3/es not_active Expired - Lifetime
- 2002-07-26 WO PCT/IB2002/002915 patent/WO2003012107A1/en active Application Filing
- 2002-07-26 EP EP02758669A patent/EP1412501B1/en not_active Expired - Lifetime
- 2002-07-26 JP JP2003517281A patent/JP4663980B2/ja not_active Expired - Lifetime
- 2002-07-26 US US10/484,923 patent/US20050053914A1/en not_active Abandoned
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EP0485361A1 (en) * | 1986-04-28 | 1992-05-13 | New York Blood Center, Inc. | Pre-S gene codes peptide hepatitis B immunogens, vaccines, diagnostics, and synthetic lipid vesicle carriers |
WO1991005059A1 (fr) * | 1988-10-05 | 1991-04-18 | Institut National De La Sante Et De La Recherche Medicale | Anticorps monoclonal reconnaissant une region pre-s1 de la grande proteine d'enveloppe du virus de l'hepatite b |
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JP2004536886A (ja) | 2004-12-09 |
EP1412501B1 (en) | 2012-12-05 |
US10323068B2 (en) | 2019-06-18 |
ES2399356T3 (es) | 2013-03-27 |
US20120329706A1 (en) | 2012-12-27 |
EP1412501A1 (en) | 2004-04-28 |
US20070116721A1 (en) | 2007-05-24 |
US20050053914A1 (en) | 2005-03-10 |
EP1281761A1 (en) | 2003-02-05 |
US20110178004A1 (en) | 2011-07-21 |
US7892754B2 (en) | 2011-02-22 |
WO2003012107A1 (en) | 2003-02-13 |
US20160130307A1 (en) | 2016-05-12 |
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