The application relates to a conjugate comprising interleukin-22 (IL22) and an antibody molecule. The antibody molecule preferably binds an antigen associated with angiogenesis, such as the ED-A isoform of fibronectin. In particular, the application relates to the therapeutic use of such conjugates in the treatment of a disease/disorder, such as autoimmune diseases, including inflammatory bowel disease (IBD).

The present invention is directed to compositions including the cytokines IL-18 and IL-22 or biologically active fragments or variants thereof. In some embodiments, the compositions further include a pharmaceutically acceptable carrier. The compositions can farther include other interleukins such as IL-1, and IL-1 can be used as a combination therapy with either IL-18 or IL-22 or biologically active fragments or variants thereof.

The present disclosure provides compositions and methods for efficient and effective protein delivery in vitro and in vivo. In some aspects, proteins are reversibly crosslinked to each other and/or modified with functional groups and protected from protease degradation by a polymer-based or silica-based nanoshell.

The present invention relates to an immunocytokine in which a human interferon-beta variant is conjugated to an antibody or a fragment thereof, and a method for preparing the same. The human interferon-beta variant has superior activity or functions compared with natural interferon-beta, and the productivity of the immunocytokine according to the present invention is excellent. In addition, the immunocytokine according to the present invention can be favorably used as a target therapeutic agent for multiple sclerosis or cancer since the immunocytokine express both of functions of the interferon-beta and characteristics of the antibody binding to a specific antigen.

Provided is an anti-human transferrin receptor antibody or an analog thereof, wherein in the heavy chain variable region of the antibody, (a) CDR1 comprises the amino acid sequence set forth as SEQ ID NO: 62 or SEQ ID NO: 63, (b) CDR2 comprises the amino acid sequence set forth as SEQ ID NO: 13 or SEQ ID NO: 14, and (c) CDR3 comprises the amino acid sequence set forth as SEQ ID NO: 15 or SEQ ID NO: 16, and an analogue thereof.

Provided is a fusion protein dimer using an antibody Fc region as the backbone, comprising a first and a second polypeptide chain. The first polypeptide chain comprises a first antibody Fc region and one or more single-domain antibodies fused to the first antibody Fc region. The second polypeptide chain comprises a second antibody Fc region and one or more single domain antibodies fused to the second antibody Fc region. The first polypeptide chain and/or the second polypeptide chain further comprise a cytokine fused to the Fc region of the respective antibody. Further provided is use of the fusion protein dimer in preparing an immunotherapeutic drug for treating tumors. The Fc fusion protein heterodimer not only increases the activity of a single domain antibody, but also significantly improves the biological activity of a cytokine. Further, by means of the targeting specificity of the antibody, the targeted transport of the cytokine is effectively enhanced, and cytotoxicity is attenuated, thereby obtaining better anti-tumor potential.

The present disclosure relates to the field of biological technologies, and discloses a method for expressing and preparing a polyvalent multi-specific antibody and an immune hybrid protein. By using the characteristics of protein Intein, a novel method for preparing a polyvalent specific antibody, a hybrid immune protein having an antibody fused to a cytokine, an immunotoxin having an antibody fused to a toxin, or an immune hybrid protein having an antibody fused to other active proteins is designed and developed. Each portion of a hybrid protein is respectively expressed in a suitable prokaryotic or eukaryotic cell system, separated and purified by high-performance affinity chromatography, and then spliced in vitro by trans-splicing mediated by the intein, to prepare a polyvalent specific antibody and an immune hybrid protein. The method has high production efficiency, and wide scope of application, and facilitates the separation and purification of the products.

Provided herein are monoclonal antibodies that specifically bind IL-13RA2 with cross-reactivity in humans and canines. Also provided are methods of use of the antibodies in the treatment and monitoring of cancers.

Provided is an anti-human transferrin receptor antibody or an analog thereof, wherein in the heavy chain variable region of the antibody, (a) CDR1 comprises the amino acid sequence set forth as SEQ ID NO: 62 or SEQ ID NO: 63, (b) CDR2 comprises the amino acid sequence set forth as SEQ ID NO: 13 or SEQ ID NO: 14, and (c) CDR3 comprises the amino acid sequence set forth as SEQ ID NO: 15 or SEQ ID NO: 16, and an analogue thereof.

This invention relates to an immunoconjugate comprising interleukin-4 (IL4) and two antibody molecules which bind an extra-cellular matrix component associated with neoplastic growth, angiogenesis, and/or tissue remodelling, such as the A1 domain of tenascin C or the ED-A or ED-B isoforms of fibronectin. The antibody molecules may be positioned at the N and C terminals of the IL4. The immunoconjugate may be useful in the treatment of cancer, inflammatory autoimmune disease and other disease characterised by expression of an extra-cellular matrix component associated with neoplastic growth, angiogenesis, and/or tissue remodelling.