Anti-CCR8 Monoclonal Antibody GS-1811

**Semantic type:** Amino Acid, Peptide, or Protein|Immunologic Factor|Pharmacologic Substance

**Definition:** A humanized immunoglobulin G1 (IgG1) afucosylated monoclonal antibody against C-C-chemokine receptor 8 (CCR8), with potential immunomodulating and antineoplastic activities. Upon administration, anti-CCR8 monoclonal antibody GS-1811 targets and binds to CCR8 on CCR8-positive, immunosuppressive tumor-infiltrating T regulatory (TITR) cells in the tumor microenvironment (TME), and prevents chemokine ligand 1 (CCL1)-CCR8-mediated signaling. GS-1811 depletes CCR8-positive TITR cells via antibody-dependent cell-mediated cytotoxicity (ADCC), which may reactivate antitumor immune responses. CCR8 is specifically expressed by TITR cells in multiple types of cancer and plays a key role in immunosuppression.

**Synonyms:** - Anti-C-C-chemokine Receptor 8 Monoclonal Antibody GS-1811 - GS 1811 - GS-1811 - GS1811 - JTX 1811 - JTX-1811 - JTX1811