Abstract:
:Freeze-dried black raspberries (BRB), their component anthocyanins (AC), and a metabolite of BRB ACs, protocatechuic acid (PCA), inhibit the development of esophageal cancer in rats induced by the carcinogen, N-nitrosomethylbenzylamine (NMBA). All three components reduce inflammation in the esophagus and in plasma. The present study determined the relation of changes in inflammatory markers to infiltration of innate immune cells into NMBA-treated esophagus. Rats were injected with NMBA (0.35 mg/kg) for 5 weeks while on control diet. Following NMBA treatment, rats were fed diets containing 6.1% BRB powder, an AC-rich fraction of BRBs (3.8 μmol/g), or 500 ppm PCA. At weeks 15, 25, and 35, inflammatory biomarker expression in the plasma and esophagus was quantified, and infiltration of immune cells in the esophagus was examined. At all three time points, BRB, AC, and PCA similarly affected cytokine production in the esophagus and plasma of NMBA-treated rats, relative to the NMBA-only control. These included decreased expression of the proinflammatory cytokine IL1β and increased expression of the anti-inflammatory cytokine IL10. Moreover, all three diets also increased the expression of IL12, a cytokine that activates both cytolytic natural killer and CD8(+) T cells. In addition, the three diets also decreased infiltration of both macrophages and neutrophils into the esophagus. Overall, our results suggest that another mechanism by which BRBs, ACs, and PCA inhibit NMBA-induced esophageal tumorigenesis is by altering cytokine expression and innate immune cell trafficking into tumor tissues.
journal_name
Cancer Immunol Resjournal_title
Cancer immunology researchauthors
Peiffer DS,Wang LS,Zimmerman NP,Ransom BW,Carmella SG,Kuo CT,Chen JH,Oshima K,Huang YW,Hecht SS,Stoner GDdoi
10.1158/2326-6066.CIR-15-0091subject
Has Abstractpub_date
2016-01-01 00:00:00pages
72-82issue
1eissn
2326-6066issn
2326-6074pii
2326-6066.CIR-15-0091journal_volume
4pub_type
杂志文章abstract::Cancer immunology has recently made major therapeutic inroads that represent clinical application of basic insights into mechanisms that govern immunity against tumors. Research into fundamental elements of T-cell and natural killer-cell biology, including the basis of antigen recognition, activation, proliferation, a...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
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abstract::Antibody-drug conjugates (ADC) are emerging as powerful treatment strategies with outstanding target-specificity and high therapeutic activity in patients with cancer. Brentuximab vedotin represents a first-in-class ADC directed against CD30(+) malignancies. We hypothesized that its sustained clinical responses could ...
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pub_type: 杂志文章
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abstract::SLAMF6, a member of the SLAM (signaling lymphocyte activation molecules) family, is a homotypic-binding immune receptor expressed on NK, T, and B lymphocytes. Phosphorylation variance between T-cell subclones prompted us to explore its role in anti melanoma immunity. Using a 203-amino acid sequence of the human SLAMF6...
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journal_title:Cancer immunology research
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abstract::Regulatory T cells (Treg) have long been considered one-sided suppressors of antitumor immune responses and hence associated with poor patient outcome in cancer. However, evidence is mounting of a paradoxical positive prognostic effect of Tregs on certain malignancies, including urinary bladder cancer (UBC). This disc...
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journal_title:Cancer immunology research
pub_type: 杂志文章,评审
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journal_title:Cancer immunology research
pub_type: 杂志文章,评审
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更新日期:2015-08-01 00:00:00
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journal_title:Cancer immunology research
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更新日期:2018-07-01 00:00:00
abstract::CD137 (4-1BB) costimulation imprints long-term changes that instruct the ultimate behavior of T cells that have previously experienced CD137 ligation. Epigenetic changes could provide a suitable mechanism for these long-term consequences. Genome-wide DNA methylation arrays were carried out on human peripheral blood CD...
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pub_type: 杂志文章
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更新日期:2018-01-01 00:00:00
abstract::Macrophage-mediated cytotoxicity is controlled by surface receptor expression and activation. Despite the numerous studies documenting the role of macrophage C-type lectin receptors (CLR) in pathogen elimination, little is known about their contribution to antitumor responses. Here, we report that IL13 inhibits T-cell...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-18-0213
更新日期:2019-02-01 00:00:00
abstract::Increased angiogenesis and tumor-induced immune evasion are two mechanisms by which clear cell renal cell carcinoma (ccRCC) proliferate and metastasize; however, the relationship between these pathways in human ccRCC is poorly understood. We conducted a nested case-control study using 98 archived tumor samples from pa...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-13-0042
更新日期:2013-12-01 00:00:00
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journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-17-0502
更新日期:2018-07-01 00:00:00
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abstract::The transcription factor T-bet controls the Th1 genetic program in T cells for effective antitumor responses. Anti-CTLA-4 immunotherapy elicits dramatic antitumor responses in mice and in human patients; however, factors that regulate T-bet expression during an antitumor response mediated by anti-CTLA-4 remain to be e...
journal_title:Cancer immunology research
pub_type: 临床试验,杂志文章
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更新日期:2014-02-01 00:00:00
abstract::The prognosis is very dismal for patients with relapsed CD20(+) B-cell non-Hodgkin lymphoma (B-NHL). Facilitating the development of alternative novel therapeutic strategies is required to improve outcomes in patients with recurrent/refractory CD20(+) B-NHL. In this study, we investigated functional activities of anti...
journal_title:Cancer immunology research
pub_type: 杂志文章
doi:10.1158/2326-6066.CIR-14-0114
更新日期:2015-04-01 00:00:00
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journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章
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abstract::The antibodies produced initially in response to most antigens are high molecular weight (MW) immunoglobulins (IgM) with low affinity for the antigen, while the antibodies produced later are lower MW classes (e.g., IgG and IgA) with, on average, orders of magnitude higher affinity for that antigen. These changes, ofte...
journal_title:Cancer immunology research
pub_type: 杂志文章,评审
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更新日期:2014-05-01 00:00:00
abstract::Proneural-to-mesenchymal transition (PMT) is a common process in glioblastoma (GBM) progression that leads to increased radiotherapy resistance. However, the mechanism underlying PMT is poorly understood. Here, we found that tumor-associated macrophages triggered PMT in glioma stem cells (GSC) via small extracellular ...
journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章,多中心研究
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journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章
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journal_title:Cancer immunology research
pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
abstract::On September 25-28, 2016, in New York City, the Second International Cancer Immunotherapy Conference was cohosted by the Cancer Research Institute, the American Association for Cancer Research, the Association for Cancer Immunotherapy, and the European Academy of Tumor Immunology. This exciting conference brought toge...
journal_title:Cancer immunology research
pub_type:
doi:10.1158/2326-6066.CIR-16-0276
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abstract::Many immunotherapeutic approaches under development rely on T-cell recognition of cancer-derived peptides bound to human leukocyte antigen molecules on the cell surface. Direct experimental demonstration that such peptides are processed and bound is currently challenging. Here, we describe a method that meets this cha...
journal_title:Cancer immunology research
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