Abstract: Provided herein are mutant interleukin-10 polypeptides, and fusion polypeptides comprising the mutant interleukin-10 polypeptides and antigen binding molecules. The present disclosure provides methods of modulating immune cell function by contacting the immune cell with fusion polypeptides of the present disclosure. In addition, the disclosure also provides polynucleotides encoding the disclosed fusion molecules, and vectors and host cells comprising such polynucleotides. The present disclosure further provides methods for producing the fusion molecules, pharmaceutical compositions comprising the same, and uses thereof.

Abstract: This disclosure provides isolated antibodies, for example, monoclonal antibodies, that specifically bind to the C-C Motif Chemokine Receptor 8 (CCR8) expressed on the surface of a cell and mediate depletion of the CCR8-expressing cell by anti-body-dependent cellular cytotoxicity (ADCC). The disclosure provides methods for treating a subject afflicted with a cancer comprising administering to the subject a therapeutically effective amount of an anti-CCR8 antibody as monotherapy or in combination with an anti-cancer agent such as an immune checkpoint inhibitor, for example, an anti-PD-1 or anti-PD-L1 antibody.