Abstract:
본 발명은 뉴로필린2(Neuropilin 2, NRP2)에는 결합하지 않고, 뉴로필린1(Neuropilin 1, NRP1)에만 특이적으로 결합하는 펩타이드와, 상기 펩타이드가 융합된 융합 단백질, 소분자 약물, 나노입자 또는 리포좀, 이를 포함하는 암 또는 신생혈관 관련 진환의 치료 또는 예방용 약학적 조성물, 및 진단용 조성물에 관한 것이다. 또한, 또한 본 발명은 상기 NRP1에 특이적으로 결합하는 펩타이드를 코딩하는 폴리뉴클레오티드를 제공하는 것이다. 또한, 본 발명은 상기 NRP1에 특이적으로 결합하는 펩타이드를 스크리닝 하는 방법에 관한 것이다. 본 발명에 따른 NRP1에 특이적으로 결합하는 펩타이드가 융합된 항체 중쇄불변부위는 NRP1과 특이적으로 결합하는 특성을 갖게 되어, 생체 내 투여시 종양조직에 선택적으로 축적되고, 종양혈관내피세포의 세포간격을 넓혀서 혈관 밖 유출이 증진되고, 종양조직 내부로의 침투가 증가한다. 또한 본 발명에 따른 NRP1에 특이적으로 결합하는 펩타이드가 융합된 항체 중쇄불변부위는 혈관생성인자(VEGF)가 뉴로필린1에 결합하는 것을 막아서, 종양조직에서의 신생혈관 생성 억제능을 지닌다. 따라서, 본 발명에 따른 펩타이드가 융합된 항체 중쇄불변부위는 생체 내 종양억제 활성을 보인다.
Abstract:
PURPOSE: A composition containing anti-DR4 humanized antibody for preventing or treating cancer is provided to minimize immune rejection of anti-DR4 mouse antibody and to induce DR4-expressing cancer cell apoptosis. CONSTITUTION: An anti-DR4 humanized antibody which specifically binds to DR4 contains an amino acid sequence of sequence number 14. The anti-DR4 humanized antibody is encoded by cDNA of sequence number 13. The anti-DR4 humanized antibody contains a heavy chain variable region with an amino acid of sequence number 2, and a light chain variable region with an amino acid sequence of sequence number 4.
Abstract:
PURPOSE: A composition containing death receptor 5(DR5) is provided to induce cancer cell apoptosis or TRAIL-sensitivity and to prevent or treat cancer. CONSTITUTION: An anti-DR5 antibody which specifically binds to DR5 comprises an amino acid of sequence number 7 or 39. The anti-DR5 antibody contains heavy chain variable region of amino acid sequence numbers 1, 2, and 3 and light chain variable region of amino acid sequence of sequence numbers 4, 5, and 6. The light chain variable region has an amino acid of sequence number 27 or 37. The heavy chain variable region has an amino acid sequence of sequence number 28 or 38.
Abstract:
PURPOSE: A nucleic acid hydrolysis antibody is provided to replace and supplement gene silence technique such as siRNA and to reduce target protein expression. CONSTITUTION: A nucleic acid hydrolysis antibody has intracellular infiltration ability and specifically binds to single strand/double stran target nucleic acid having specific nucleotide sequence. The target nucleic acid is G18 or Her218. G18 has a nucleotide sequence of sequence number 12. The antibody has an amino acid sequence selected from sequence numbers 14 to 24. The antibody is encodes by DNA gene having a nucleotide selected from sequence numbers 25 to 35. The antibody is entire IgG, heavy chain variable region single domain, light chain variable region single domain, single chain variable region fragement (scFv), (scFv)2, Fab, Fab', F(ab')2, diabody or dsFv.
Abstract:
PURPOSE: A humanized antibody having nucleic acid hydrolysis ability and cancer cell infiltration ability is provided to specifically bind to and hydrolyze a nucleic acid and to ensure low immune reaction in a human body. CONSTITUTION: An immunoglobulin or single side chain antibody(scFv) fragment contains epitope of heavy chain variable region or light chain variable region. The immunoglobulin is immunoglobulin G, humanized 3D8 antibody. The heavy chain variable region is a protein comprising a sequence of sequence number 15. The VL is a protein comprising a sequence of sequence number 16. A composition for preventing or treating cancer contains the immunoglobulin or single side chain antibody(scFv) fragment as an active ingredient.