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Liu Y, Wei G, Cheng WA, Dong Z, Sun H, Lee VY, Cha SC, Smith DL, Kwak LW, Qin H. Targeting myeloid-derived suppressor cells for cancer immunotherapy. Cancer Immunol Immunother 2018; 67:1181-1195. [PMID: 29855694 PMCID: PMC11028324 DOI: 10.1007/s00262-018-2175-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 05/19/2018] [Indexed: 01/05/2023]
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells with an immune suppressive phenotype. They represent a critical component of the immune suppressive niche described in cancer, where they support immune escape and tumor progression through direct effects on both the innate and adaptive immune responses, largely by contributing to maintenance of a high oxidative stress environment. The number of MDSCs positively correlates with protumoral activity, and often diminishes the effectiveness of immunotherapies, which is particularly problematic with the emergence of personalized medicine. Approaches targeting MDSCs showed promising results in preclinical studies and are under active investigation in clinical trials in combination with various immune checkpoint inhibitors. In this review, we discuss MDSC targets and therapeutic approaches targeting MDSC that have the aim of enhancing the existing tumor therapies.
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Affiliation(s)
- Yijun Liu
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Guowei Wei
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Wesley A Cheng
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Zhenyuan Dong
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Han Sun
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Vincent Y Lee
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Soung-Chul Cha
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - D Lynne Smith
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Larry W Kwak
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA.
| | - Hong Qin
- Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Stem Cell Transplantation, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
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