Abstract: The present invention is based, in part, on the discovery of anti-PSGL-1 compositions (e.g., monoclonal antibodies and antigen-binding fragments thereof) that regulate myeloid cell inflammatory phenotypes, such as suppressive myeloid cells, monocytes, macrophages, neutrophils, and/or dendritic cells, including polarization, activation, and/or function, and methods of using such anti-PSGL-1 compositions for therapeutic, diagnostic, prognostic, and screening purposes.

Abstract: The present invention is based, in part, on the discovery of anti-SIGLEC-9 composition (e.g., monoclonal antibodies and antigen-binding fragments thereof), that regulate myeloid cell inflammatory phenotypes, such as suppressive myeloid cells, monocytes, macrophages, neutrophils, and/or dendritic cells, including polarization, activation, and/or function, and methods of using such anti-SIGLEC-9 compositions for therapeutic, diagnostic, prognostic, and screening purposes.

Abstract: Provided herein are embodiments relating to therapeutic applications of antibodies that modulate; e.g., inhibit the interaction of TIM-3 and LILRB2 antibodies. In some embodiments, the antibodies bind TIM-3. In some embodiments the antibodies bind LILRB2. Modulation of the interaction of TIM-3 and LILRB2 stimulates the release of pro-inflammatory cytokines; e.g., myeloid-associated pro-inflammatory cytokines.