FUSION PROTEIN COMPRISING MODIFIED ANTI-VEGFR2 (KDR) ANTIBODY AND USE THEREOF

The present invention relates to a fusion protein comprising a modified anti-VEGFR2 (KDR) antibody having improved properties or an antigen-binding fragment thereof, and a use thereof. Specifically, the present invention pertains to a fusion protein, and a composition for diagnosis or treatment of a...

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Main Authors LEE, Weon Sup, NAM, Ju Ryoung, YOO, Jin-San, LEE, Youngae
Format Patent
LanguageEnglish
French
Korean
Published 20.07.2023
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Abstract The present invention relates to a fusion protein comprising a modified anti-VEGFR2 (KDR) antibody having improved properties or an antigen-binding fragment thereof, and a use thereof. Specifically, the present invention pertains to a fusion protein, and a composition for diagnosis or treatment of an angiogenesis-associated disease, a composition for prevention or treatment of a tumor or cancer, and a composition for administration in combination with a therapeutic agent other than the fusion protein, each composition comprising the fusion protein, wherein the fusion protein has an anti-VEGFR2(KDR) antibody conjugated with a delta-like ligand 4 (DLL4)-binding protein domain at the terminus thereof, the anti-VEGFR2(KDR) antibody being derived from a human antibody binding specifically to VEGFR2/KDR by substituting VH1 in the heavy chain framework region (FR) with VH3 and VL1 in the light chain framework region (FR) with VK1 and inducing a mutation therein, thereby increasing the affinity of the antibody for the antigen. La présente invention concerne une protéine de fusion comprenant un anticorps anti-VEGFR2 (KDR) modifié ayant des propriétés améliorées ou un fragment de liaison à l'antigène de celui-ci, et son utilisation. Spécifiquement, la présente invention concerne une protéine de fusion, et une composition pour le diagnostic ou le traitement d'une maladie associée à l'angiogenèse, une composition pour la prévention ou le traitement d'une tumeur ou d'un cancer, et une composition pour l'administration en combinaison avec un agent thérapeutique autre que la protéine de fusion, chaque composition comprenant la protéine de fusion, la protéine de fusion comprenant l'anticorps anti-VEGFR2 (KDR) conjugué avec un domaine de protéine de liaison de ligand de type delta 4 (DLL4) au niveau de son extrémité, l'anticorps anti-VEGFR2 (KDR) étant dérivé d'un anticorps humain se liant spécifiquement à VEGFR2/KDR par substitution de VH1 dans la région de structure de chaîne lourde (FR) avec VH3 et VL1 dans la région de structure de chaîne légère (FR) avec VK1 et induisant une mutation dans celle-ci, ce qui permet d'augmenter l'affinité de l'anticorps pour l'antigène. 본 발명은 향상된 특성을 나타내는 항-VEGFR2(KDR) 개량 항체 또는 이의 항원 결합 단편을 포함하는 융합단백질 및 그 용도에 관한 것이다. 구체적으로, 본 발명은 VEGFR2/KDR에 특이적으로 결합하는 인간 항체의 중쇄 FR(framework regoin)을 VH1에서 VH3로 치환 및 경쇄 FR(framework regoin)을 VL1에서 VK1으로 치환하고, 돌연변이를 유도시켜 항원에 대한 친화도를 증가시킨 항-VEGFR2(KDR) 항체의 말단에 DLL4 (Delta-like ligand 4) 결합 단백질 도메인을 결합한 융합단백질, 상기 융합단백질을 포함하는 신생혈관형성(angiogenesis)과 관련된 질환의 진단 또는 치료용 조성물, 종양 또는 암의 예방 또는 치료용 조성물 및 상기 융합단백질 이외의 치료제와 병용 투여하기 위한 조성물에 관한 것이다.
AbstractList The present invention relates to a fusion protein comprising a modified anti-VEGFR2 (KDR) antibody having improved properties or an antigen-binding fragment thereof, and a use thereof. Specifically, the present invention pertains to a fusion protein, and a composition for diagnosis or treatment of an angiogenesis-associated disease, a composition for prevention or treatment of a tumor or cancer, and a composition for administration in combination with a therapeutic agent other than the fusion protein, each composition comprising the fusion protein, wherein the fusion protein has an anti-VEGFR2(KDR) antibody conjugated with a delta-like ligand 4 (DLL4)-binding protein domain at the terminus thereof, the anti-VEGFR2(KDR) antibody being derived from a human antibody binding specifically to VEGFR2/KDR by substituting VH1 in the heavy chain framework region (FR) with VH3 and VL1 in the light chain framework region (FR) with VK1 and inducing a mutation therein, thereby increasing the affinity of the antibody for the antigen. La présente invention concerne une protéine de fusion comprenant un anticorps anti-VEGFR2 (KDR) modifié ayant des propriétés améliorées ou un fragment de liaison à l'antigène de celui-ci, et son utilisation. Spécifiquement, la présente invention concerne une protéine de fusion, et une composition pour le diagnostic ou le traitement d'une maladie associée à l'angiogenèse, une composition pour la prévention ou le traitement d'une tumeur ou d'un cancer, et une composition pour l'administration en combinaison avec un agent thérapeutique autre que la protéine de fusion, chaque composition comprenant la protéine de fusion, la protéine de fusion comprenant l'anticorps anti-VEGFR2 (KDR) conjugué avec un domaine de protéine de liaison de ligand de type delta 4 (DLL4) au niveau de son extrémité, l'anticorps anti-VEGFR2 (KDR) étant dérivé d'un anticorps humain se liant spécifiquement à VEGFR2/KDR par substitution de VH1 dans la région de structure de chaîne lourde (FR) avec VH3 et VL1 dans la région de structure de chaîne légère (FR) avec VK1 et induisant une mutation dans celle-ci, ce qui permet d'augmenter l'affinité de l'anticorps pour l'antigène. 본 발명은 향상된 특성을 나타내는 항-VEGFR2(KDR) 개량 항체 또는 이의 항원 결합 단편을 포함하는 융합단백질 및 그 용도에 관한 것이다. 구체적으로, 본 발명은 VEGFR2/KDR에 특이적으로 결합하는 인간 항체의 중쇄 FR(framework regoin)을 VH1에서 VH3로 치환 및 경쇄 FR(framework regoin)을 VL1에서 VK1으로 치환하고, 돌연변이를 유도시켜 항원에 대한 친화도를 증가시킨 항-VEGFR2(KDR) 항체의 말단에 DLL4 (Delta-like ligand 4) 결합 단백질 도메인을 결합한 융합단백질, 상기 융합단백질을 포함하는 신생혈관형성(angiogenesis)과 관련된 질환의 진단 또는 치료용 조성물, 종양 또는 암의 예방 또는 치료용 조성물 및 상기 융합단백질 이외의 치료제와 병용 투여하기 위한 조성물에 관한 것이다.
Author LEE, Youngae
YOO, Jin-San
LEE, Weon Sup
NAM, Ju Ryoung
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DocumentTitleAlternate PROTÉINE DE FUSION COMPRENANT UN ANTICORPS ANTI-VEGFR2 (KDR) MODIFIÉ ET SON UTILISATION
항-VEGFR2(KDR) 개량 항체를 포함하는 융합단백질 및 이의 용도
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Snippet The present invention relates to a fusion protein comprising a modified anti-VEGFR2 (KDR) antibody having improved properties or an antigen-binding fragment...
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SubjectTerms BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
HUMAN NECESSITIES
HYGIENE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PEPTIDES
PHYSICS
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
SPIRITS
TESTING
VINEGAR
WINE
Title FUSION PROTEIN COMPRISING MODIFIED ANTI-VEGFR2 (KDR) ANTIBODY AND USE THEREOF
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