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Sabrina S, Takeda Y, Kato T, Naito S, Ito H, Takai Y, Ushijima M, Narisawa T, Kanno H, Sakurai T, Saitoh S, Araki A, Tsuchiya N, Asao H. Initial Myeloid Cell Status Is Associated with Clinical Outcomes of Renal Cell Carcinoma. Biomedicines 2023; 11:biomedicines11051296. [PMID: 37238964 DOI: 10.3390/biomedicines11051296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
The therapeutic outcome of immune checkpoint inhibition (ICI) can be improved through combination treatments with ICI therapy. Myeloid-derived suppressor cells (MDSCs) strongly suppress tumor immunity. MDSCs are a heterogeneous cell population, originating from the unusual differentiation of neutrophils/monocytes induced by environmental factors such as inflammation. The myeloid cell population consists of an indistinguishable mixture of various types of MDSCs and activated neutrophils/monocytes. In this study, we investigated whether the clinical outcomes of ICI therapy could be predicted by estimating the status of the myeloid cells, including MDSCs. Several MDSC indexes, such as glycosylphosphatidylinositol-anchored 80 kD protein (GPI-80), CD16, and latency-associated peptide-1 (LAP-1; transforming growth factor-β1 precursor), were analyzed via flow cytometry using peripheral blood derived from patients with advanced renal cell carcinoma (n = 51) immediately before and during the therapy. Elevated CD16 and LAP-1 expressions after the first treatment were associated with a poor response to ICI therapy. Immediately before ICI therapy, GPI-80 expression in neutrophils was significantly higher in patients with a complete response than in those with disease progression. This is the first study to demonstrate a relationship between the status of the myeloid cells during the initial phase of ICI therapy and clinical outcomes.
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Affiliation(s)
- Saima Sabrina
- Department of Immunology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Yuji Takeda
- Department of Immunology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Tomoyuki Kato
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Sei Naito
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Hiromi Ito
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Yuki Takai
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Masaki Ushijima
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Takafumi Narisawa
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Hidenori Kanno
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Toshihiko Sakurai
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Shinichi Saitoh
- Department of Immunology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Akemi Araki
- Department of Immunology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Norihiko Tsuchiya
- Department of Urology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
| | - Hironobu Asao
- Department of Immunology, Faculty of Medicine, Yamagata University, Yamagata 990-9585, Japan
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Kato T, Takeda Y, Ito H, Kurota Y, Yamagishi A, Sakurai T, Naito S, Araki A, Nara H, Asao H, Tsuchiya N. GPI-80 as a Useful Index for Myeloid Cell Heterogeneity and a Potential Prognostic Biomarker for Metastatic Renal Cell Carcinoma. TOHOKU J EXP MED 2019; 249:203-212. [PMID: 31776298 DOI: 10.1620/tjem.249.203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Myeloid-derived suppressor cells (MDSCs), which include neutrophilic MDSCs and monocytic MDSCs, exhibit high immunosuppressive activity. Glycosylphosphatidylinositol-anchored 80 kD protein (GPI-80) is selectively expressed on mature neutrophils in healthy individuals. Increased GPI-80 expression on monocytes and variations in GPI-80 expression on neutrophils indicate the appearance of MDSCs in the peripheral blood of cancer patients. However, it is still unclear whether GPI-80 expression on myeloid cells, neutrophilic MDSCs and monocytic MDSCs, is correlated with the clinical outcomes of patients with cancer. In this study, we investigated the characteristics of myeloid cells expressing GPI-80 and the implication of GPI-80 expression in the clinical outcomes of patients with metastatic renal cell carcinoma (mRCC), in which primary renal cell carcinoma spreads from the kidney to other organs. The study included 20 patients with mRCC (a mean age of 66.0 years) and 16 healthy volunteers (a mean age of 47.8 years). To determine the heterogeneity of myeloid cells in peripheral blood samples, we performed the three-dimensional principal component analysis using the combination of GPI-80, CD16, and latency-associated peptide-1 (LAP), derived from the N-terminal region of transforming growth factor-β1 precursor. The results showed that myeloid cells in mRCC patients were widely distributed and clearly distinguishable from those in the healthy volunteers. The survival analysis revealed that GPI-80 expression on neutrophils and monocytes was correlated with poor prognostic outcomes of patients with mRCC. In conclusion, the expression of GPI-80 on myeloid cells, a useful index for the heterogeneity of MDSCs, serves as a potential prognostic biomarker for mRCC.
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Affiliation(s)
- Tomoyuki Kato
- Department of Urology, Yamagata University Faculty of Medicine
| | - Yuji Takeda
- Department of Immunology, Yamagata University Faculty of Medicine
| | - Hiromi Ito
- Department of Urology, Yamagata University Faculty of Medicine
| | - Yuta Kurota
- Department of Urology, Yamagata University Faculty of Medicine
| | | | | | - Sei Naito
- Department of Urology, Yamagata University Faculty of Medicine
| | - Akemi Araki
- Department of Immunology, Yamagata University Faculty of Medicine
| | - Hidetoshi Nara
- Department of Immunology, Yamagata University Faculty of Medicine
| | - Hironobu Asao
- Department of Immunology, Yamagata University Faculty of Medicine
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