University of Southern California

Amy S Lee

Ren Liu

Parkash S Gill

Parkash Gill

This application provides, inter alia, antibodies or antigen-binding fragments thereof, targeting cell surface GRP78 expressed on tumor cells, tumor endothelial cells, and tumor initiating cancer cells. These anti-GRP78 antibodies, or antigen-binding fragments thereof, have a high affinity for GRP78 and are less immunogenic compared to their unmodified parent antibodies in a given species, e.g., a human, and function to inhibit GRP78. Importantly, these isolated novel antibodies and antigen-binding fragments thereof, attenuate PI3K signaling and promote apoptosis in tumor cells, while leaving normal cells unaffected. The antibodies and antigen-binding fragments are useful for UPR-targeted cancer therapeutic treatments.

Epitope specific antibodies that bind cell surface GRP78 and their use for cancer detection

Antibodies that bind cell surface GRP78

This invention relates to compositions and methods for selective expression of a heterologous nucleic acid sequence in a targeted tissue, and more particularly to the glucose regulated protein 78 (grp78) stress-responsive promoter and its use in gene therapy and the production of transgenic animals.

Stress-responsive induction of a therapeutic agent and methods of use

The regulatory sequence for a glucose regulated protein has been isolated. When fused into suitable expression vectors within reading relationship of a desired polypeptide DNA sequence, the resulting hybrid gene can be induced to high levels by glucose starvation, or calcium shock, or by denaturing reagents such as .beta.-mercaptoethanol, in a variety of host systems. Further, the hybrid gene can also be regulated by temperature when it is introduced into temperature-sensitive host systems such as the temperature-sensitive mutant of Chinese hamster cells or other systems having a compatible mutation.

Growing community of inventors

San Marino, CA, United States of America

Amy S Lee