The present disclosure relates to anti-CD38 antibodies and their use as therapeutics and diagnostics. The present disclosure further relates to methods of treating autoimmune diseases, such as systemic lupus erythematosus and rheumatoid arthritis. The present disclosure further relates to diagnostic assay methods for identifying patients having autoimmune diseases for treatment.

The purpose of the present invention is to provide a novel monoclonal antibody having high affinity and that strictly recognizes, as a sugar chain epitope, only a “Siaα2,6Galβ1,4GlcNAc (6′-Sialyl-LacNAc): CDw75” sugar chain structure, being a molecular target for diagnosis of the malignancy of tumors. An anti-CDw75 monoclonal antibody is provided that recognizes “CDw75” sugar chain structures but does not recognize similar sugar chain structures indicated by “Galβ1,4GlcNAc”, “Siaα2,3Galβ1,4GlcNAc”, or “Siaα2,6Galβ1,4Glc”, by using a glycolipid antigen bonding a carrier lipid compound “HOCH.sub.2CH(NH—CO—(CH.sub.2).sub.22—CH.sub.3)—(CH.sub.2).sub.9—CH.sub.3 (C12L)” developed by the inventors to a “CDw75” sugar chain. The obtained anti-CDw75 monoclonal antibody is an excellent detection drug for B-cell lymphoma, gastric cancer, or colorectal cancer, an excellent diagnostic agent for tumor malignancy, etc., an excellent treatment agent for B-cell lymphoma, gastric cancer, or colorectal cancer, and an excellent prevention/treatment drug for influenza.

The present invention relates to the sialyltransferase ST3GAL6 for use as a biomarker for multiple myeloma, and especially as a marker for myelomas with inferior survival rates. The inventors have shown that glycosylation gene expression is dysregulated in Multiple Myeloma and that overexpression of the sialyltransferase ST3GAL6 is associated with inferior survival rates in patients.

The present invention relates to the sialyltransferase ST3GAL6 for use as a biomarker for multiple myeloma, and especially as a marker for myelomas with inferior survival rates. The inventors have shown that glycosylation gene expression is dysregulated in Multiple Myeloma and that overexpression of the sialyltransferase ST3GAL6 is associated with inferior survival rates in patients.

The present invention provides methods and compositions for identifying leukemic stem cells.

Described herein are glucose sensors. The sensors are composed of host cells incorporating DNA devices specifically designed to produce fluorescence when the cells come into contact with glucose from a patient sample. Once the fluorescence has been quantified, it can be correlated with the amount of glucose present in the sample. Also described herein are extracts from the host cells that can sense and measure glucose levels in a patient. The devices and extracts disclosed herein are inexpensive but sensitive and accurate enough for use in both home and clinical testing situations. The devices and extracts disclosed herein are also useful for diagnosis of diabetes, pre-diabetes, or other diseases associated with elevated glucose levels.

Isolated monoclonal antibodies which bind to human CD38 and related antibody-based compositions and molecules, are disclosed. Also disclosed are pharmaceutical compositions comprising the antibodies and therapeutic and diagnostic methods for using the antibodies.

Isolated monoclonal antibodies which bind to human CD38 and related antibody-based compositions and molecules, are disclosed. Also disclosed are pharmaceutical compositions comprising the antibodies and therapeutic and diagnostic methods for using the antibodies.

The present disclosure relates to anti-CD38 antibodies and their use as therapeutics and diagnostics. The present disclosure further relates to methods of treating autoimmune diseases, such as systemic lupus erythematosus and rheumatoid arthritis. The present disclosure further relates to diagnostic assay methods for identifying patients having autoimmune diseases for treatment.

The present application provides an anti-CD38 antibody, an antigen-binding fragment thereof, and pharmaceutical use. Specifically, the present application provides a murine-derived antibody, a chimeric antibody or a humanized antibody comprising a CDR region of the anti-CD38 antibdoy, a pharmaceutical composition comprising the anti-CD38 antibody or the antigen-binding fragment thereof, and an application thereof as a drug. In particular, the present application provides an application of a humanized anti-CD38 antibody in preparing a drug for treating a CD38 positive disease or disorder.