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Lee J, Kim J, Sin JI. B16 melanomas evade antitumor immunity by the loss of epitope presentation and the acquisition of tumor resistance to granzyme B. Cell Immunol 2021; 367:104394. [PMID: 34198057 DOI: 10.1016/j.cellimm.2021.104394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/20/2021] [Accepted: 06/05/2021] [Indexed: 12/25/2022]
Abstract
Melanomas exhibit the highest rate of heterogeneity among cancer cell types. In this study, we tested the two types of B16 melanoma cells (B16-S0-1 and B16-S1-1) showing resistance to antitumor immunity. These cells expressed Trp2 protein. Contrary to B16 and B16-S0-1 cells, B16-S1-1 cells failed to stimulate IFN-γ responses in Trp2-specific CD8+ T cells, suggesting that B16-S1-1 cells may have lost the ability to present antigen to Ag-specific CTLs in the context of MHC class I molecules. However, B16-S0-1 cells exhibited active Stat3 and decreased Bcl-2 expression, which were found to be not associated with immune escape. B16-S0-1 cells were more resistant to granzyme B-mediated caspase activation and apoptosis than B16 cells. Thus, these data show that B16 cells escape antitumor immune responses through the loss of epitope presentation to CTLs and the acquisition of tumor cell resistance to granzyme B-mediated caspase activation.
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Affiliation(s)
- Jaeyeon Lee
- Department of Microbiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 200-701, South Korea; Interdisciplinary Graduate Program in BIT Medical Convergence, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 200-701, South Korea
| | - Jiyoon Kim
- Department of Microbiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 200-701, South Korea
| | - Jeong-Im Sin
- Department of Microbiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 200-701, South Korea; Interdisciplinary Graduate Program in BIT Medical Convergence, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do 200-701, South Korea.
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Li Z, Li SA, Sun Y, Liu Y, Li WL, Yang L, Duan Y, Li J, Guo H, Zou TN, Li Y, Wang KH. TNF-α -308 A allele is associated with an increased risk of distant metastasis in rectal cancer patients from Southwestern China. PLoS One 2017; 12:e0178218. [PMID: 28575042 PMCID: PMC5456043 DOI: 10.1371/journal.pone.0178218] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 05/09/2017] [Indexed: 01/08/2023] Open
Abstract
Tumor necrosis factor-α (TNF-α), an important factor in systematic inflammation, is reportedly involved in several cancer types. The TNF-α -308 G>A (rs1800629) polymorphism in the promoter region influences TNF-α production. The association between TNF-α -308 G>A polymorphism and colorectal cancer (CRC) is not fully understood, especially the connections between TNF-α -308 G>A polymorphism and clinical features of CRC. In this study, TNF-α -308 G>A polymorphism was genotyped in 1140 individuals with or without CRC from Southwestern China. In case-control studies, we found no association between TNF-α -308 G>A polymorphism and CRC risk. Analysis of the correlations between TNF-α -308 G>A polymorphism and clinical features of CRC revealed that TNF-α -308 A allele was associated with higher body mass index (BMI) larger tumor size, and distant tumor metastasis in all CRC patients. Notably, rectal cancer (a subtype of CRC) patients with TNF-α -308 A allele had a very high risk of distant tumor metastasis [odds ratio (OR) = 4.481; 95% confidence interval (CI): 2.072–9.693; P = 0.00025]. The association between TNF-α -308 A allele and distant tumor metastasis remained even significant after adjusting all clinical characteristics (OR = 7.099; 95% CI: 2.482–20.301; P = 0.000256) in rectal cancer patients. Our results suggested that TNF-α -308 A allele was significantly associated with distant tumor metastasis in rectal cancer patients.
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Affiliation(s)
- Zhen Li
- Department of Gastrointestinal Surgery, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Kunming Digestive Disease Treatment Engineering Technology Center, Kunming, Yunnan, China
| | - Shu-an Li
- Department of Gastroenterology, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Ya Sun
- Department of Breast Surgery, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yu Liu
- Department of Breast Surgery, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Wen-liang Li
- Department of Oncologic Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Li Yang
- Department of Clinical Laboratory, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yong Duan
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Jingyu Li
- Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Hao Guo
- Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Tian-ning Zou
- Department of Breast Surgery, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- * E-mail: (KHW); (YLL); (TNZ)
| | - Yunlong Li
- Medical Faculty, Kunming University of Science and Technology, Kunming, Yunnan, China
- The First People’s Hospital of Yunnan Province (The Affiliated of Kunming University of and Technology), Kunming, Yunnan, China
- * E-mail: (KHW); (YLL); (TNZ)
| | - Kun-hua Wang
- Department of Gastrointestinal Surgery, Institute of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Kunming Digestive Disease Treatment Engineering Technology Center, Kunming, Yunnan, China
- * E-mail: (KHW); (YLL); (TNZ)
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Efficiency of dendritic cell vaccination against B16 melanoma depends on the immunization route. PLoS One 2014; 9:e105266. [PMID: 25121970 PMCID: PMC4133283 DOI: 10.1371/journal.pone.0105266] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 07/21/2014] [Indexed: 12/22/2022] Open
Abstract
Dendritic cells (DC) presenting tumor antigens are crucial to induce potent T cell-mediated anti-tumor immune responses. Therefore DC-based cancer vaccines have been established for therapy, however clinical outcomes are often poor and need improvement. Using a mouse model of B16 melanoma, we found that the route of preventive DC vaccination critically determined tumor control. While repeated DC vaccination did not show an impact of the route of DC application on the prevention of tumor growth, a single DC vaccination revealed that both the imprinting of skin homing receptors and an enhanced proliferation state of effector T cells was seen only upon intracutaneous but not intravenous or intraperitoneal immunization. Tumor growth was prevented only by intracutaneous DC vaccination. Our results indicate that under suboptimal conditions the route of DC vaccination crucially determines the efficiency of tumor defense. DC-based strategies for immunotherapy of cancer should take into account the immunization route in order to optimize tissue targeting of tumor antigen specific T cells.
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