Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis

Upper tract urothelial carcinoma (UTUC) presents aggressive features and a tumor microenvironment with T cell depletion. However, the role of tumor-associated neutrophils in UTUC remains unclear. This study aimed to investigate how UTUC tumor-derived factors modulate neutrophils and their impact on...

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Main Authors: Chih-Chia Chang, Chia-Bin Chang, Cheng-Huang Shen, Ming-Yang Lee, Yeong-Chin Jou, Chun-Liang Tung, Wei-Hong Lai, Chi-Feng Hung, Meilin Wang, Ya-Yan Lai, Pi-Che Chen, Shu-Fen Wu
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Language:English
Published: MDPI AG 2025-04-01
Series:Cells
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Online Access:https://www.mdpi.com/2073-4409/14/9/660
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author Chih-Chia Chang
Chia-Bin Chang
Cheng-Huang Shen
Ming-Yang Lee
Yeong-Chin Jou
Chun-Liang Tung
Wei-Hong Lai
Chi-Feng Hung
Meilin Wang
Ya-Yan Lai
Pi-Che Chen
Shu-Fen Wu
author_facet Chih-Chia Chang
Chia-Bin Chang
Cheng-Huang Shen
Ming-Yang Lee
Yeong-Chin Jou
Chun-Liang Tung
Wei-Hong Lai
Chi-Feng Hung
Meilin Wang
Ya-Yan Lai
Pi-Che Chen
Shu-Fen Wu
author_sort Chih-Chia Chang
collection DOAJ
description Upper tract urothelial carcinoma (UTUC) presents aggressive features and a tumor microenvironment with T cell depletion. However, the role of tumor-associated neutrophils in UTUC remains unclear. This study aimed to investigate how UTUC tumor-derived factors modulate neutrophils and their impact on T cell immune responses. Our findings demonstrate that UTUC secreted tumor-derived factors, with apolipoprotein A1 (Apo-A1) being the predominant factor, which upregulated arginase-1 expression in neutrophils. STAT3 activation was responsible for the upregulation of arginase-1 in neutrophils. Blocking the interactions between Apo-A1 and its receptors reduced arginase-1 expression in neutrophils treated with tumor tissue culture supernatant (TTCS). Moreover, both CD4<sup>+</sup> T and CD8<sup>+</sup> T cell proliferation were inhibited by neutrophils treated with Apo-A1 or TTCS. Importantly, blocking Apo-A1 signaling in neutrophils reversed the inhibitory effects on T cells. In UTUC patients, the neutrophil-to-lymphocyte ratio was higher than that in healthy subjects. The expression of arginase-1 in neutrophils and the level of Apo-A1 within UTUC tumors were negatively correlated with tumor-infiltrating CD4<sup>+</sup> T cells. Additionally, neutrophils from UTUC patients showed increased expression of arginase-1 and exhibited inhibitory effects of T cell functions. These findings suggest that UTUC orchestrates an immune-suppressive microenvironment through Apo-A1-mediated upregulation of arginase-1 in neutrophils, ultimately leading to the inhibition of T cell proliferation.
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spelling doaj-art-b389135a70ed437d95f0fda0b97fb8d92025-08-20T01:49:14ZengMDPI AGCells2073-44092025-04-0114966010.3390/cells14090660Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 AxisChih-Chia Chang0Chia-Bin Chang1Cheng-Huang Shen2Ming-Yang Lee3Yeong-Chin Jou4Chun-Liang Tung5Wei-Hong Lai6Chi-Feng Hung7Meilin Wang8Ya-Yan Lai9Pi-Che Chen10Shu-Fen Wu11Department of Radiation Therapy and Oncology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Hematology and Oncology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Urology, St. Martin De Porres Hospital, Chiayi 60069, TaiwanDepartment of Pathology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Microbiology and Immunology, School of Medicine, Chung Shan Medical University, Taichung 40201, TaiwanDepartment of Biochemical Science and Technology, National Chiayi University, Chiayi 60004, TaiwanDepartment of Urology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 60002, TaiwanDepartment of Biomedical Sciences, and Epigenomics Human Disease Research Center, National Chung Cheng University, Chiayi 62102, TaiwanUpper tract urothelial carcinoma (UTUC) presents aggressive features and a tumor microenvironment with T cell depletion. However, the role of tumor-associated neutrophils in UTUC remains unclear. This study aimed to investigate how UTUC tumor-derived factors modulate neutrophils and their impact on T cell immune responses. Our findings demonstrate that UTUC secreted tumor-derived factors, with apolipoprotein A1 (Apo-A1) being the predominant factor, which upregulated arginase-1 expression in neutrophils. STAT3 activation was responsible for the upregulation of arginase-1 in neutrophils. Blocking the interactions between Apo-A1 and its receptors reduced arginase-1 expression in neutrophils treated with tumor tissue culture supernatant (TTCS). Moreover, both CD4<sup>+</sup> T and CD8<sup>+</sup> T cell proliferation were inhibited by neutrophils treated with Apo-A1 or TTCS. Importantly, blocking Apo-A1 signaling in neutrophils reversed the inhibitory effects on T cells. In UTUC patients, the neutrophil-to-lymphocyte ratio was higher than that in healthy subjects. The expression of arginase-1 in neutrophils and the level of Apo-A1 within UTUC tumors were negatively correlated with tumor-infiltrating CD4<sup>+</sup> T cells. Additionally, neutrophils from UTUC patients showed increased expression of arginase-1 and exhibited inhibitory effects of T cell functions. These findings suggest that UTUC orchestrates an immune-suppressive microenvironment through Apo-A1-mediated upregulation of arginase-1 in neutrophils, ultimately leading to the inhibition of T cell proliferation.https://www.mdpi.com/2073-4409/14/9/660upper tract urothelial carcinomatumor tissue culture supernatantneutrophilsarginase-1T cells
spellingShingle Chih-Chia Chang
Chia-Bin Chang
Cheng-Huang Shen
Ming-Yang Lee
Yeong-Chin Jou
Chun-Liang Tung
Wei-Hong Lai
Chi-Feng Hung
Meilin Wang
Ya-Yan Lai
Pi-Che Chen
Shu-Fen Wu
Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis
Cells
upper tract urothelial carcinoma
tumor tissue culture supernatant
neutrophils
arginase-1
T cells
title Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis
title_full Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis
title_fullStr Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis
title_full_unstemmed Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis
title_short Immunosuppression of Tumor-Derived Factors Modulated Neutrophils in Upper Tract Urothelial Carcinoma Through Upregulation of Arginase-1 via ApoA1-STAT3 Axis
title_sort immunosuppression of tumor derived factors modulated neutrophils in upper tract urothelial carcinoma through upregulation of arginase 1 via apoa1 stat3 axis
topic upper tract urothelial carcinoma
tumor tissue culture supernatant
neutrophils
arginase-1
T cells
url https://www.mdpi.com/2073-4409/14/9/660
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