This invention relates to monospecific and multispecific antibodies that may be utilized for the diagnosis and treatment of various diseases. In addition, these antibodies may be modified by protease cleavage. Protease control or regulation may be provided by a protease site located in, for example, a linker. These protease-regulated antibodies may also be utilized for the diagnosis and treatment of various diseases.

The present invention relates to a novel integrin alphalO antibody, as well as uses thereof in medicine. 25 humanized antibodies (abs) derived from the known mouse mAb365 (the hybridoma deposited under the accession number DSM ACC2583) are disclosed. The ones which bind specifically the integrin alpha 10 beta 1 were selected. Out of the 25 humanized variants 5 were selected as lead candidates (designated TAR-Ab8, TAR-Ab9, TAR-Abl3, TAR-Abl4 and TAR-Ab23) since these 5 entire antibodies were shown to have improved thermal stability as compared to the chimeric antibody designated TAR-Ab0. There is further functional characterization only of TAR-Ab23 which has higher binding affinity than mAb365.

The present application provides an antibody, such as a monoclonal antibody (mAb), or an antigen binding fragment thereof, that specifically recognizes B7-H3. Also provided are pharmaceutical compositions, or methods of making and using the antibody or antigen-binding fragment thereof.