Abstract: An anti-IL23 antibody fusion protein and uses thereof, the anti-IL23 antibody fusion protein containing anti IL23 antibodies and TAC polypeptides, and the IL23 antibodies specifically binding the human IL23 p19 subunit. The anti-IL23 antibody fusion protein can be used for the treatment or improvement of B cell disorders or autoimmune diseases.

Abstract: Provided is an antigen-binding molecule, particularly a domain-engineered antibody, wherein at least one constant region domain CH1/CL of the antibody is replaced by a Titin T-chain/Obscurin-O chain.

Abstract: The present application relates to a truncated TACI polypeptide and a fusion protein and use thereof. Specifically, provided are a TACI polypeptide as shown in SEQ ID NO: 8, a truncated fragment thereof, a mutation sequence thereof, and a fusion protein comprising the TACI polypeptide and use thereof.

Abstract: The present disclosure relates to an antigen-binding molecule specifically binding to RANKL and NGF, and a medical use thereof. Specifically, provided are a novel anti-RANKL antibody, a bispecific antibody targeting RANKL and NGF, a preparation method for the antibody, and a use thereof in treatment or prevention of diseases.

Abstract: The present disclosure relates to a new polypeptide complex. Specifically, the present disclosure relates to a domain engineered antibody. At least one of the constant region domains CH1 and/or CL of the antibody is replaced, and the domain CH1/CL is replaced by a Titin T chain/Obscurin-O chain or by a Titin T chain/Obscurin-like-O chain.

Abstract: An anti-CEA antibody-exatecan analog conjugate and a pharmaceutical use thereof. Specifically, the anti-CEA antibody-exatecan analog conjugate is as shown in general formula (Pc-L-Y-D), wherein Pc is an anti-CEA antibody or an antigen-binding fragment thereof; L is a linker unit; Y is selected from —O—(CRaRb)m—CR1R2—C(O)—, —O—CR1R2—(CRaRb)m—, —O—CR1R2—, —NH—(CRaRb)m—CR1R2—C(O)—, and —S—(CRaRb)m—CR1R2—C(O); and n is a decimal or integer from 1 to 10.

Abstract: Provided is an anti-CEA antibody comprising a heavy chain variable region and a light chain variable region, a drug conjugate thereof, and a composition containing the anti-CEA antibody or the drug conjugate thereof, and an application thereof as a drug.

Abstract: The present disclosure provides a bispecific antibody specifically bound to VEGF and ANG2, comprising an anti-VEGF antibody or antigen-binding fragment thereof that specifically binds to VEGF, and an anti-ANG2 single-domain antibody that specifically binds to ANG2, wherein the anti-ANG2 single domain antibody is directly or indirectly connected to the anti-VEGF antibody or an antigen-binding fragment thereof. The present disclosure further provides an anti-ANG2 single domain antibody and an antigen-binding fragment thereof, as well as a preparation and application of said antibody.