JP4892548B2 - Hivに対して中和活性を有する抗体又はその断片 - Google Patents
Hivに対して中和活性を有する抗体又はその断片 Download PDFInfo
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- JP4892548B2 JP4892548B2 JP2008509515A JP2008509515A JP4892548B2 JP 4892548 B2 JP4892548 B2 JP 4892548B2 JP 2008509515 A JP2008509515 A JP 2008509515A JP 2008509515 A JP2008509515 A JP 2008509515A JP 4892548 B2 JP4892548 B2 JP 4892548B2
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- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000014599 transmission of virus Effects 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 241001430294 unidentified retrovirus Species 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000013603 viral vector Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/08—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from viruses
- C07K16/10—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from viruses from RNA viruses
- C07K16/1036—Retroviridae, e.g. leukemia viruses
- C07K16/1045—Lentiviridae, e.g. HIV, FIV, SIV
- C07K16/1063—Lentiviridae, e.g. HIV, FIV, SIV env, e.g. gp41, gp110/120, gp160, V3, PND, CD4 binding site
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
- A61P31/18—Antivirals for RNA viruses for HIV
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56983—Viruses
- G01N33/56988—HIV or HTLV
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
- C07K2317/55—Fab or Fab'
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
- C07K2317/56—Immunoglobulins specific features characterized by immunoglobulin fragments variable (Fv) region, i.e. VH and/or VL
- C07K2317/565—Complementarity determining region [CDR]
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/70—Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
- C07K2317/76—Antagonist effect on antigen, e.g. neutralization or inhibition of binding
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Description
本発明に従う抗体は、完全な免疫グロブリン、又はその断片、及び特にその抗原結合性部分を云う。
HIVに対する、本発明の抗体又はその断片の中和活性は、上皮細胞を横切るHIVトランスサイトーシスの阻害及び/又はCD4+ T細胞のHIV感染の阻害により評価されうる。
本発明の抗体は、実施例の部分において記載されているように得られるFab IgAファージディスプレイライブラリーのスクリーニングにより同定される。
一つの実施態様に従い、本発明は、活性な剤として、本発明の抗体、特にはクローン43、若しくはその断片、本発明のH鎖可変領域、本発明の組み換え抗HIV抗体若しくはその断片、本発明に従う核酸、本発明に従う発現ベクター又は本発明に従う宿主細胞、及び適当なキャリアから選ばれる剤の少なくとも1の有効量を含む医薬組成物に関する。
本発明のモノクローナル抗体又はその断片は、サンプル中のHIV株、特にはHIV−1株をインビトロで検出するための方法において診断的な剤としても用いられうる。
a)サンプルを少なくともの1の本発明の抗体又はその断片と、該抗体又はその断片と配列ID NO 3の配列を有するペプチド又はその機能的類似体を含むHIVタンパク質の間で複合体を形成する為に適当な条件下で接触させること、及び
b)該複合体の存在を検出すること
の工程を含む。
図1:高度に曝露された、持続的にIgG血清陰性(HEPS)の個人の抗HIV−1 IgA含有膣頸部分泌物にさらされたgp41由来のHIV−1タンパク質のイムノブロットを表す。陽性対照として、gp41ペプチドのイムノブロットが、HIV血清陽性の個人から得られた血清を用いて行われた。そして、陰性対照として、同じ実験がHIV血清陰性の個人の血清を用いて行われた。
高度に曝露された、持続的にIgG血清陰性(HEPS)の個人の膣頸部分泌物中の抗HIV−1 IgAの同定
IgAのFabを発現するコンビナトリアルファージディスプレイライブラリーの構築
ペプチドP1(配列ID NO 7)上でのFab IgAファージライブラリーのスクリーニング
配列決定は、Taq蛍光ジデオキシヌクレオチドターミネーターサイクルシーケンシングキット(Applied Biosystems)を用いて自動化されたDNAシーケンサーを用いて行われた。二本鎖DNAはバクテリアから調製され、そして配列決定はpComb3Xベクターに夫々のFab鎖の上及び下流で特異的にアニールするプライマーのセット(表2参照)を用いて実施された。
ファージディスプレイライブラリーからの可溶IgA Fabクローンにより実施されたELISAアッセイ
トランスサイトーシスの阻害
HIV感染の阻害
Claims (17)
- 配列ID NO 7の配列のペプチドを認識するモノクローナル抗体又はその断片であって、そのH鎖可変領域の相補性決定領域3(CDR3)は配列ID NO 1のペプチド配列を含み、該H鎖可変領域はさらに、配列ID NO 2及び配列ID NO 3のペプチド配列を夫々有するCDR1及びCDR2を含む、上記モノクローナル抗体又はその断片。
- 配列ID NO 4、配列ID NO 5及び配列ID NO 6のペプチド配列を夫々有するCDR1、CDR2及びCDR3を含むL鎖可変領域を含む、請求項1に従うモノクローナル抗体又はその断片。
- IgAである、請求項1又は2に従うモノクローナル抗体又はその断片。
- ヒト抗体である、請求項1〜3のいずれか1項に従うモノクローナル抗体又はその断片。
- H鎖可変領域が配列ID NO 8のアミノ酸配列を有しかつL鎖可変領域が配列ID NO 9のアミノ酸配列を有する、請求項1〜4のいずれか1項に従うモノクローナル抗体又はその断片。
- HIVを中和する能力を有する、請求項1〜5のいずれか1項に従うモノクローナル抗体又はその断片。
- 中和されるHIVがHIV−1株である、請求項6に従うモノクローナル抗体又はその断片。
- 配列ID NO 7のペプチド配列を認識するH鎖可変領域であって、該H鎖可変領域のCDR3は配列ID NO 1のペプチド配列を含み、さらに配列ID NO 2及び配列ID NO 3のペプチド配列を夫々有するCDR1及びCDR2を含む、上記H鎖可変領域。
- 請求項8に従うH鎖可変領域を含む、組み換え抗HIV抗体又はその断片。
- 請求項1〜7のいずれか1項において定義される、モノクローナル抗体又はその断片をコードする核酸。
- H鎖可変領域の配列が配列ID NO 10であり、かつL鎖可変領域の配列が配列ID NO 11である、請求項10に従う核酸。
- 請求項11において定義される核酸を含む発現ベクター。
- 請求項10あるいは11において定義される核酸により又は請求項12において定義されるベクターにより形質転換された宿主細胞。
- 請求項1〜7及び9のいずれか1項において定義される抗体又はその断片、請求項10又は11において定義される核酸、請求項12において定義されるベクター又は請求項13に従う宿主細胞から選ばれる有効量の剤を、活性な剤として、及び適当なキャリアを含む医薬組成物。
- 請求項1〜7及び9のいずれか1項において定義される抗体又はその断片、請求項10あるいは11において定義される核酸、又は請求項12において定義されるベクター又は請求項13に従う宿主細胞を、適当なキャリアと一緒にする工程を含む、HIV感染の予防及び/又は治療において用いられることが意図される医薬の製造のために使用する方法。
- 請求項1〜7及び9のいずれか1項において定義される抗体又はその断片を含む診断用組成物。
- サンプル中のHIV株をインビトロで検出するための方法において、少なくとも
a)該サンプルと、請求項1〜7及び9において定義される少なくとも1の抗体又はその断片とを、該抗体又はその断片と配列ID NO 7のペプチドを含むHIVタンパク質との間の複合体を形成する為に適当な条件下で、接触させること、及び
b)該複合体の存在を検出すること
の工程を含む方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2005/001180 WO2006117584A1 (en) | 2005-05-02 | 2005-05-02 | Antibody or a fragment thereof, having neutralizing activity against hiv |
Publications (2)
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JP2008539714A JP2008539714A (ja) | 2008-11-20 |
JP4892548B2 true JP4892548B2 (ja) | 2012-03-07 |
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JP2008509515A Expired - Fee Related JP4892548B2 (ja) | 2005-05-02 | 2005-05-02 | Hivに対して中和活性を有する抗体又はその断片 |
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US (1) | US20090191216A1 (ja) |
EP (1) | EP1877140A1 (ja) |
JP (1) | JP4892548B2 (ja) |
CN (1) | CN101198374B (ja) |
WO (1) | WO2006117584A1 (ja) |
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CN102212133B (zh) * | 2011-03-30 | 2013-01-16 | 中国医学科学院病原生物学研究所 | 人源HIV抗体的Fab片段及其编码基因与应用 |
CN107646039B (zh) * | 2015-04-02 | 2022-04-15 | 埃博灵克斯股份有限公司 | 具有有效抗hiv活性的双特异性cxcr4-cd4多肽 |
CN113683688B (zh) * | 2021-07-23 | 2023-06-23 | 无锡傲锐东源生物科技有限公司 | 抗人类免疫缺陷病毒ⅰ型p24抗原(hiv-1 p24)兔单克隆抗体及其应用 |
Citations (1)
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JP2005502708A (ja) * | 2001-09-07 | 2005-01-27 | ポリマン サイエンティフィック イミューンバイオロジッシュ フォーシュング ゲゼルシャフト ミット ベシュレンクテル ファフツング | HIV−1のgp41のクリプティックエピトープを模倣するペプチド |
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US5459060A (en) * | 1989-08-24 | 1995-10-17 | Bioclonetics Incorporated | Human monoclonal antibodies directed against the transmembrane glycoprotein (gp41) of human immunodeficiency virus-1 (HIV-1) |
US6482928B1 (en) * | 1999-04-13 | 2002-11-19 | Aventis Pasteur Limited And University Of Toronto | Fab′-epitope complex from HIV-1 cross-neutralizing monoclonal antibody 2F5 |
EP1218408A4 (en) * | 1999-09-24 | 2003-02-26 | Human Genome Sciences Inc | 32 HUMAN, SECRETED PROTEINS |
US7473424B2 (en) * | 2003-01-31 | 2009-01-06 | The Scripps Research Institute | Anti-dengue virus antibodies and compositions |
-
2005
- 2005-05-02 WO PCT/IB2005/001180 patent/WO2006117584A1/en active Application Filing
- 2005-05-02 JP JP2008509515A patent/JP4892548B2/ja not_active Expired - Fee Related
- 2005-05-02 EP EP05737948A patent/EP1877140A1/en not_active Withdrawn
- 2005-05-02 CN CN2005800501396A patent/CN101198374B/zh not_active Expired - Fee Related
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JP2005502708A (ja) * | 2001-09-07 | 2005-01-27 | ポリマン サイエンティフィック イミューンバイオロジッシュ フォーシュング ゲゼルシャフト ミット ベシュレンクテル ファフツング | HIV−1のgp41のクリプティックエピトープを模倣するペプチド |
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US20090191216A1 (en) | 2009-07-30 |
JP2008539714A (ja) | 2008-11-20 |
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CN101198374A (zh) | 2008-06-11 |
WO2006117584A1 (en) | 2006-11-09 |
EP1877140A1 (en) | 2008-01-16 |
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