Coinhibitory Molecule PD-1 as a Therapeutic Target in the Microenvironment of Multiple Myeloma

Title:Coinhibitory Molecule PD-1 as a Therapeutic Target in the Microenvironment of Multiple Myeloma

Volume: 17 Issue: 9

Author(s): Djordje Atanackovic, Tim Luetkens, Sabari Radhakrishnan and Nicolaus Kroger*

Affiliation:

• Department of Stem Cell Transplantatio, University Medical Center Hamburg-Eppendorf, Martinistrabe 52, 20246 Hamburg,Germany

Keywords: Coinhibitory molecule PD-1, microenvironment, multiple myeloma, T-cell-mediated apoptosis, PD-L1, immunosuppressive.

Abstract: Background: Patients with Multiple Myeloma suffer from dysregulation of the immune system and new therapeutic options targeting the immune systems such as monoclonal antibodies or specific Cell therapy such as CAR-T cells have entered clinical practice, but the exhausted immune system hampered a more effective immunotherapy. Targeting the immunological dysfunction in the microenviroment might be a potential target for immune-mediated therapies.

Method: Here we review the current literature and knowledge about the programmed death 1 (PD-1) receptor which is expressed on the surface of exhausted T and B cells and its ligand PD-L1 is expressed on myeloma cells and inhibits T cell-mediated apoptosis.

Results: The programmed death 1 (PD-1) receptor is expressed on the surface of exhausted T and B cells and its ligand PD-L1 is expressed on myeloma cells and inhibits Tcell-mediated apoptosis. Inhibiting such “checkpoint” by monoclonal antibodies recently has been shown high activity in solid tumors and malignant lymphomas. In patients with multiple myelomaPD-L1 is overexpressed on myeloma cells and PD1 on T-cells suggesting an active role of PD-1/PD-L1 in the immunosuppressive microenvironment.

Conclusion: Immunotherapies using anti-PD-1/PD-L1 strategies are a promising treatment options for patients with multiple myeloma.

Cite this article as:

Atanackovic Djordje , Luetkens Tim , Radhakrishnan Sabari and Kroger Nicolaus*, Coinhibitory Molecule PD-1 as a Therapeutic Target in the Microenvironment of Multiple Myeloma, Current Cancer Drug Targets 2017; 17 (9) . https://dx.doi.org/10.2174/1568009617666170906170348