Increased Apolipoprotein A1 Expression Correlates with Tumor-Associated Neutrophils and T Lymphocytes in Upper Tract Urothelial Carcinoma
| Autor: | Chih-Chia Chang, Chia-Bin Chang, Chiung-Ju Chen, Chun-Liang Tung, Chi-Feng Hung, Wei-Hong Lai, Cheng-Huang Shen, Chang-Yu Tsai, Ya-Yan Lai, Ming-Yang Lee, Shu-Fen Wu, Pi-Che Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Current Issues in Molecular Biology, Vol 46, Iss 3, Pp 2155-2165 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1467-3045 1467-3037 |
| DOI: | 10.3390/cimb46030139 |
| Popis: | An increased neutrophil-to-lymphocyte ratio (NLR) is a poor prognostic biomarker in various types of cancer, because it reflects the inhibition of lymphocytes in the circulation and tumors. In urologic cancers, upper tract urothelial carcinoma (UTUC) is known for its aggressive features and lack of T cell infiltration; however, the association between neutrophils and suppressed T lymphocytes in UTUC is largely unknown. In this study, we examined the relationship between UTUC-derived factors and tumor-associated neutrophils or T lymphocytes. The culture supernatant from UTUC tumor tissue modulated neutrophils to inhibit T cell proliferation. Among the dominant factors secreted by UTUC tumor tissue, apolipoprotein A1 (Apo-A1) exhibited a positive correlation with NLR. Moreover, tumor-infiltrating neutrophils were inversely correlated with tumor-infiltrating T cells. Elevated Apo-A1 levels in UTUC were also inversely associated with the population of tumor-infiltrating T cells. Our findings indicate that elevated Apo-A1 expression in UTUC correlates with tumor-associated neutrophils and T cells. This suggests a potential immunomodulatory effect on neutrophils and T cells within the tumor microenvironment, which may represent therapeutic targets for UTUC treatment. |
| Databáze: | Directory of Open Access Journals |
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