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Prognostic Value of Pretreatment Neutrophil-to-Lymphocyte Ratio in HER2-Positive Metastatic Breast Cancer. Curr Oncol 2022; 29:6154-6166. [PMID: 36135052 PMCID: PMC9498194 DOI: 10.3390/curroncol29090483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 11/25/2022] Open
Abstract
This study aimed to examine the prognostic value of the neutrophil-to-lymphocyte ratio (NLR) and other clinicopathological features in HER2+ MBC patients who received first-line anti-HER2 therapy. A total of 129 patients were assigned to NLR-low and NLR-high groups based on a cutoff value of 3.0 at baseline. Peripheral blood lymphocyte subsets and gene mutations in circulating tumor DNA were analyzed by flow cytometry and Next-generation sequencing, respectively. Survival was evaluated by the Kaplan−Meier method and Cox regression analysis. Of the 129 patients, 77 and 52 were assigned to the NLR-low (≤3) and NLR-high (>3) groups, respectively. Compared with NLR-high patients, the NLR-low patients had significantly longer median progression-free survival (PFS) (11.7 vs. 7.7 months) (p = 0.001, HR = 2.703 95% CI 1.543−4.736 and overall survival (OS) (37.4 vs. 28.7 months) (p = 0.044, HR = 2.254 95% CI 1.024−4.924). Furthermore, this association was independent of metastatic sites or estrogen receptor status. Peripheral blood CD3+ (p = 0.034) and CD4+ (p = 0.010) T cell numbers were significantly higher in the NLR-low group than the NLR-high group. The mutational profile of MBC was generally similar between the two groups. Baseline NLR was a prognostic factor of PFS and OS for patients with HER2+ MBC in the first-line setting. These results may facilitate the selection of patients who will benefit most from anti-HER2 treatment.
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A Ferroptosis-Related LncRNA Signature Associated with Prognosis, Tumor Immune Environment, and Genome Instability in Hepatocellular Carcinoma. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6284540. [PMID: 36035299 PMCID: PMC9410853 DOI: 10.1155/2022/6284540] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 07/13/2022] [Accepted: 07/25/2022] [Indexed: 11/18/2022]
Abstract
Background Ferroptosis is an iron-dependent form of cell death. In this study, we identified ferroptosis-related long noncoding RNAs (FRlncRNAs) to investigate their association with hepatocellular carcinoma (HCC) in prognosis, tumor immune environment, and genome instability. Methods Transcriptome profile data of HCC were retrieved from a public database. FRlncRNAs were identified by co-expression analysis. Patients were randomly divided into training and test cohorts. Univariate Cox analysis and Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression were performed to construct a risk model. Patients were divided into high- and low-risk groups based on the risk model. AUC and C index were used to assess the risk model. Survival analysis, immune status, and genome instability were compared between the two groups. Results Sixteen FRlncRNAs were identified and used to construct an FRlncRNA signature for the risk model. The Kaplan-Meier analysis revealed that patients in the high-risk group had poorer overall survival than patients in the low-risk group. The area under curve of the risk model was 0.879, 0.809, and 0.757 in the training cohort and 0.635, 0.688, and 0.739 in the test cohort at 1, 2, and 3 years, respectively. The risk model was an independent prognostic predictor and showed excellent prediction of prognosis compared with clinicopathological features. For the differentially expressed ferroptosis-related genes, many enriched metabolic pathways were identified in the functional enrichment analysis. Immune cells such as CD8+ T cells, macrophages M1, natural killer cells, and B cells, which may be associated with antitumor immune responses, differed between the high- and low-risk groups. Genome instability based on the risk model was also explored. A total of 61 genes were differently mutated between the two risk groups, and among them, TP53, HECW2, TRIM66, MCTP2, and KIAA1551 had the most significant mutation frequency differences. Conclusion The FRlncRNA signature is closely related with overall survival, tumor immune environment, and genome instability in HCC.
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Lv Y, Song M, Tian X, Yv X, Liang N, Zhang J. Impact of radiotherapy on circulating lymphocyte subsets in patients with esophageal cancer. Medicine (Baltimore) 2020; 99:e20993. [PMID: 32898991 PMCID: PMC7478455 DOI: 10.1097/md.0000000000020993] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Radiotherapy (RT) can affect the immune function of patients with cancer. The purpose of this study was to investigate the effect of RT on lymphocyte and its subsets in patients with esophageal cancer (EC).All patients received RT with a mean dose of 5369 cGy (gray). Blood parameters were measured in 31 patients on 3 occasions (before, at the end of radiotherapy, and at 3 months follow-up). The whole blood count and lymphocyte subsets were measured and correlated with short time efficiency and radiation dose parameters.White blood count (WBC) and lymphocyte count (ALC) were greatly decreased at the end of radiotherapy, and the percentages of CD3+, CD3+CD8+ T cells were significantly increased, on the other hand, a decrease in the CD4/CD8 ratio was observed. The percentages of CD3-CD16/56+NK cells and CD19+ B cell were decreased at the end of RT compared with prior RT. The percentages of CD3+ T cells before RT and the WBC and ALC count after RT can be used as prognostic indicators for survival. The PTV dose can cause significant changes in lymphocytes count after RT. CD3+T cells after RT were significantly correlated with mean heart dose and heart V50.Our study identified that RT causes changes in lymphocyte subsets, and these changes may indicate differences in immune function between individuals. Radiotherapy plan should be designed to minimize normal tissue dose to reduce the impact on WBC and lymphocytes.
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Affiliation(s)
- Yajuan Lv
- Shandong Provincial Qianfoshan Hospital, Shandong University
| | - Meijuan Song
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Xiufang Tian
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Xinshuang Yv
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Ning Liang
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
| | - Jiandong Zhang
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
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Son HJ, Choi EJ, Yoo NJ, Lee SH. Inactivating mutations of class II transactivator (CIITA) gene in gastric and colorectal cancers. Pathol Res Pract 2020; 216:153110. [PMID: 32853948 DOI: 10.1016/j.prp.2020.153110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
Expression of MHC class II, which is important against cancer immunity, depends on the transcactivator CIITA. These data suggest a possibility that CIITA gene might be inactivated in cancers. In this study, we studied inactivating mutation status of CIITA gene in gastric (GC) and colorectal (CRC) cancers by analyzing the C7 repeat in the CIITA (exon 11) gene. We found frameshift mutations in 3 GCs and 6 CRCs in cancers with high microsatellite instability (MSI-H) (9/113), but not in those with microsatellite-stable (MSS) (0/90) (P = 0.004). They were all deletion or duplication of one base in the C7 repeat that would result in truncation of amino acid synthesis. Immune therapy is now a major option in cancer therapy and our results on the genetic alterations of MHC II-related CTIITA in MSH-H GC and CRC might provide useful information for the treatment of MSI-H cancers.
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Affiliation(s)
- Hyun Ji Son
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
| | - Eun Ji Choi
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
| | - Nam Jin Yoo
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea
| | - Sug Hyung Lee
- Department of Pathology, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea; Cancer Research Institute, College of Medicine, The Catholic University of Korea, Seoul, 137-701, Republic of Korea.
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Zhang WS, Sun QL, Zheng W, Zhang Y, Du J, Dong CX, Tao N. Structural characterization of a polysaccharide from Coreopsis tinctoria Nutt. and its function to modify myeloid derived suppressor cells. Int J Biol Macromol 2019; 126:926-933. [DOI: 10.1016/j.ijbiomac.2019.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/21/2018] [Accepted: 01/01/2019] [Indexed: 01/16/2023]
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Chen X, Zhang W, Qian D, Guan Y, Wang Y, Zhang H, Er P, Yan C, Li Y, Ren X, Pang Q, Wang P. Chemoradiotherapy-Induced CD4 + and CD8 + T-Cell Alterations to Predict Patient Outcomes in Esophageal Squamous Cell Carcinoma. Front Oncol 2019; 9:73. [PMID: 30828566 PMCID: PMC6385789 DOI: 10.3389/fonc.2019.00073] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 01/28/2019] [Indexed: 12/13/2022] Open
Abstract
Purpose and Objectives: Chemoradiotherapy (CRT) is an important component of treatment for patients with locally advanced esophageal squamous cell carcinoma (ESCC). Recent research findings support the role of CRT in activating an anti-tumor immune response. However, predictors of CRT efficacy are not fully understood. The aim of this study was to measure CRT-induced changes to lymphocyte subpopulations and to evaluate the prognostic value of lymphocyte alterations for patients with ESCC. Materials and Methods: In total, this pilot study enrolled 64 patients with ESCC who received neo-adjuvant CRT or definitive CRT. Peripheral blood samples were collected before and during treatment and were analyzed by flow cytometry for CD19, CD3, CD4, CD8, CD56, and CD16. Relationships between lymphocyte subset alterations and overall survival (OS) and progression-free survival (PFS) were evaluated using the log-rank test and a Cox regression model. Results: The median follow-up period was 11.8 months (range, 4.0–20.2 months). Compared to pre-treatment specimens, post-treatment blood samples had decreased proportions of CD19+ B-cells and increased proportions of CD3+ and CD8+ T-cells (all P < 0.05). Univariate and multivariate analysis showed that increased CD4+ T-cell ratios after CRT independently predicted superior PFS (hazard ratio [HR] = 0.383; 95% confidence interval [CI] = 0.173–0.848, P = 0.017) and that increased CD8+ T-cell ratios predicted improved OS (HR = 0.258; 95% CI = 0.083–0.802, P = 0.019). Patients with both increased CD4+ and CD8+ ratios had a superior PFS and OS, compared to patients with an increased CD4+ ratio only or CD8+ ratio only or neither (1-year PFS rate 63 vs. 25%, 1-year OS rate 80 vs. 62%, P = 0.005 and 0.025, respectively). Conclusions: CRT-induced increases in CD4+ and CD8+ T-cell ratios are reliable biomarker predictors of survival in patients with ESCC.
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Affiliation(s)
- Xi Chen
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Wencheng Zhang
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Dong Qian
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yong Guan
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yuwen Wang
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Hualei Zhang
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Puchun Er
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Cihui Yan
- Department of Immunology,Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yueguo Li
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Xiubao Ren
- Department of Immunology,Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Qingsong Pang
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Ping Wang
- >Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
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A prognostic model combining CD4/CD8 ratio and N stage predicts the risk of distant metastasis for patients with nasopharyngeal carcinoma treated by intensity modulated radiotherapy. Oncotarget 2018; 7:46653-46661. [PMID: 27270307 PMCID: PMC5216826 DOI: 10.18632/oncotarget.9695] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 04/27/2016] [Indexed: 01/11/2023] Open
Abstract
This study aimed to evaluate the correlation between circulating lymphocyte subsets and clinical variables, and design an effective prognostic model for distant metastasis-free survival (DMFS) in NPC. In this study, subsets of circulating lymphocytes were determined in 719 non-metastatic NPC patients before treatment. Overall survival and DMFS was monitored. Significant prognostic factors were identified using univariate and multivariate analyses. Results showed that the percentage of CD19+ lymphocytes correlated negatively with TNM stage (r = −0.082, P = 0.028). Patients with higher CD4/CD8 ratios (≥ 1.77) showed better 5-year DMFS than patients with lower ratios (91.9% vs. 85.4%, P < 0.001). Multivariate analysis revealed that CD4/CD8 ratio (HR, 0.450; 95% confidence interval [CI], 0.266–0.760; P = 0.003) and N classification (HR, 2.294; 95% CI, 1.370–3.839; P = 0.002) were independently prognostic factors for DMFS. The prognostic N-R model was developed and divided patients into three groups: (1) low-risk (early N stage and CD4/CD8 ratio ≥ 1.77); (2) intermediate-risk (advanced N stage or CD4/CD8 ratio < 1.77) and (3) high-risk (advanced N stage and CD4/CD8 ratio < 1.77) of distant metastasis. In conclusion our prognostic model, based on clinical N stage and CD4/CD8 ratio, may predict the risk of distant metastasis, allowing individualized treatment for NPC.
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Vera-Aguilera J, Perez-Torres A, Beltran D, Villanueva-Ramos C, Wachtel M, Moreno-Aguilera E, Vera-Aguilera C, Ventolini G, Martínez-Zaguilán R, Sennoune SR. Novel Treatment of Melanoma: Combined Parasite-Derived Peptide GK-1 and Anti-Programmed Death Ligand 1 Therapy. Cancer Biother Radiopharm 2017; 32:49-56. [DOI: 10.1089/cbr.2016.2123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Jesus Vera-Aguilera
- Division of Hematology, Mayo Clinic, Rochester, Minnesota
- Division of Oncology, Mayo Clinic, Rochester, Minnesota
- Internal Medicine, School of Medicine at the Permian Basin, Texas Tech University Health Sciences Center, Odessa, Texas
| | - Armando Perez-Torres
- Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México, México City, Mexico
| | - Diego Beltran
- Internal Medicine, School of Medicine at the Permian Basin, Texas Tech University Health Sciences Center, Odessa, Texas
| | - Cynthia Villanueva-Ramos
- Family Medicine, School of Medicine at the Permian Basin, Texas Tech University Health Sciences Center, Odessa, Texas
| | - Mitchell Wachtel
- Department of Pathology, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Eduardo Moreno-Aguilera
- Servicio de Gastrocirugía, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México
| | - Carlos Vera-Aguilera
- Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México, México City, Mexico
| | - Gary Ventolini
- Internal Medicine, School of Medicine at the Permian Basin, Texas Tech University Health Sciences Center, Odessa, Texas
| | - Raul Martínez-Zaguilán
- Department of Cell Physiology and Molecular Biophysics, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - Souad R. Sennoune
- Department of Cell Physiology and Molecular Biophysics, Texas Tech University Health Sciences Center, Lubbock, Texas
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Gulubova M, Ananiev J, Ignatova M, Halacheva K. Pro-Tumor and Anti-Tumor Functions of IL-17 and of TH17 Cells in Tumor Microenvironment. ACTA MEDICA BULGARICA 2016. [DOI: 10.1515/amb-2016-0019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Summary
The current review reveals the seven subclasses of CD4+ T helper cells, i.e. Th1, Th2, Th9, Th17, Th22, regulatory T cells and Tfh, the cytokines produced by them and their role in tumor microenvironment. Main attention was paid to IL-17 and Th17 cells. IL-17-producing cells were described, among which were Treg17 cells and Tc17 cells. The transcription factors, engaged in the activation of Th17 cell differentiation were reviewed. It was shown that Th17 cells might possess regulatory functions in tumor microenvironments that directs toward immunosuppression. The reciprocity between Treg and Th17 cells is realized when the production of a large amount of TGF-β in tumors causes Treg cell differentiation, and the addition of IL-6 shifts the differentiation of naïve T cells to Th17 cells. The main pro-tumor role of IL-17 is the promotion of tumor angiogenesis through stimulation of fibroblasts and endothelial cells. The antitumor functions of IL-17 are associated with enhancement of cytotoxic activity of tumor specific CTL cells and with angiogenesis that provide channels through which immune cells might invade tumor and promote antitumor immunity.
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Affiliation(s)
- M. Gulubova
- Department of General and Clinical Pathology, Medical Faculty, Trakian University, 11 Armeiska Str. Bg - 6000 Stara Zagora, Bulgaria
| | - J. Ananiev
- Department of General and Clinical Pathology, Medical Faculty, Trakian University, Stara Zagora, Bulgaria
| | - M. Ignatova
- Medical student at Medical Faculty, Trakian University, Stara Zagora, Bulgaria
| | - K. Halacheva
- Department of Biology, Immunology and Medical Genetics, Medical Faculty, Trakian University, Stara Zagora, Bulgaria
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Pérez-Torres A, Vera-Aguilera J, Sahaza JH, Vera-Aguilera C, Moreno-Aguilera E, Pulido-Camarillo E, Nuñez-Ochoa L, Jeganathan P. Hematological Effects, Serum, and Pulmonary Cytokine Profiles in a Melanoma Mouse Model Treated with GK1. Cancer Biother Radiopharm 2016; 30:247-54. [PMID: 26181852 DOI: 10.1089/cbr.2015.1835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE In a previous study, we demonstrated the therapeutic efficacy of a subcutaneous injection of GK1 peptide in a melanoma mouse model, effectively increasing the mean survival time by 42.58%, delaying tumor growth, and increasing intratumoral necrosis compared with the control. As a first approach to investigate the anti-melanoma effect of GK1, this study was carried out to determine the hematological effects along with both serum and lung cytokine profiles in a melanoma lung metastatic model. MATERIALS AND METHODS Thirteen C57BL6 female mice were transfected in the lateral tail vein with 2×10(5) B16-F0 melanoma cells. After 7 days, mice were separated in two different groups and treatments were initiated (day 0): The GK1-treated group (seven mice) were injected every 5 days intravenously with GK1 (10 μg) in the lateral tail vein, and the control group (six mice) were injected every 5 days with intravenous saline solution. Blood samples were collected every 5 days from day 0; tumor samples were obtained for cytokine measurements on the day of sacrifice. RESULTS In the peripheral blood, mice treated with GK1 presented a statistically significant decrease in IFN-γ (p<0.05), and lymphocytes tended to be lower compared with the control mice (p=0.06). Lung metastatic analysis demonstrated a significant increase in IFN-γ and IL-12p70 (p<0.05); a significant decrease in IL-17, IL-4, IL-22, IL-23, and IL-12p40 (p<0.05); and a marginal decrease in IL-1β (p=0.07) compared with the control. DISCUSSION Our results suggest that an intratumoral increase of cytokines with antitumor activity along with an intratumoral decrease of cytokines with protumor activity could explain, in part, the anti-melanoma effects of GK1 in a lung metastatic melanoma mouse model. Further studies must be performed to elucidate the precise mechanisms of action for GK1 peptide against melanoma, and their eventual application in humans.
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Affiliation(s)
- Armando Pérez-Torres
- 1 Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México , México City, México
| | | | - Jorge H Sahaza
- 3 Corporación para Investigaciones Biológicas (CIB) , Unidad de Micología Médica y Experimental, Medellín, Colombia
| | - Carlos Vera-Aguilera
- 1 Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México , México City, México
| | - Eduardo Moreno-Aguilera
- 4 Servicio de Gastrocirugía, Hospital de Especialidades , Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México DF, México
| | - Evelyn Pulido-Camarillo
- 1 Departamento de Biología Celular y Tisular, Facultad de Medicina, Universidad Nacional Autónoma de México , México City, México
| | - Luis Nuñez-Ochoa
- 5 Departamento de Patología Clínica/Oncología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México , México City, México
| | - Pratheepa Jeganathan
- 6 Department of Mathematics and Statistics, Texas Tech University , Lubbock, Texas
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Varypataki EM, Silva AL, Barnier-Quer C, Collin N, Ossendorp F, Jiskoot W. Synthetic long peptide-based vaccine formulations for induction of cell mediated immunity: A comparative study of cationic liposomes and PLGA nanoparticles. J Control Release 2016; 226:98-106. [DOI: 10.1016/j.jconrel.2016.02.018] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/06/2016] [Accepted: 02/09/2016] [Indexed: 12/20/2022]
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12
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Dragojevic Dikic S, Jovanovic AM, Dikic S, Jovanovic T, Jurisic A, Dobrosavljevic A. Melatonin: a "Higgs boson" in human reproduction. Gynecol Endocrinol 2015; 31:92-101. [PMID: 25377724 DOI: 10.3109/09513590.2014.978851] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
As the Higgs boson could be a key to unlocking mysteries regarding our Universe, melatonin, a somewhat mysterious substance secreted by the pineal gland primarily at night, might be a crucial factor in regulating numerous processes in human reproduction. Melatonin is a powerful antioxidant which has an essential role in controlling several physiological reactions, as well as biological rhythms throughout human reproductive life. Melatonin, which is referred to as a hormone, but also as an autocoid, a chronobiotic, a hypnotic, an immunomodulator and a biological modifier, plays a crucial part in establishing homeostatic, neurohumoral balance and circadian rhythm in the body through synergic actions with other hormones and neuropeptides. This paper aims to analyze the effects of melatonin on the reproductive function, as well as to shed light on immunological and oncostatic properties of one of the most powerful hormones.
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Cognate CD4 T-cell licensing of dendritic cells heralds anti-cytomegalovirus CD8 T-cell immunity after human allogeneic umbilical cord blood transplantation. J Virol 2014; 89:1058-69. [PMID: 25378489 DOI: 10.1128/jvi.01850-14] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Reactivation of human cytomegalovirus (CMV) is hazardous to patients undergoing allogeneic cord blood transplantation (CBT), lowering survival rates by approximately 25%. While antiviral treatment ameliorates viremia, complete viral control requires CD8+ T-cell-driven immunity. Mouse studies suggest that cognate antigen-specific CD4+ T-cell licensing of dendritic cells (DCs) is required to generate effective CD8+ T-cell responses. For humans, this was not fully understood. We here show that CD4+ T cells are essential for licensing of human DCs to generate effector and memory CD8+ T-cell immunity against CMV in CBT patients. First, we show in CBT recipients that clonal expansion of CMV-pp65-specific CD4+ T cells precedes the rise in CMV-pp65-specific CD8+ T cells. Second, the elicitation of CMV-pp65-specific CD8+ T cells from rare naive precursors in cord blood requires DC licensing by cognate CMV-pp65-specific CD4+ T cells. Finally, also CD8+ T-cell memory responses require CD4+ T-cell-mediated licensing of DCs in our system, by secretion of gamma interferon (IFN-γ) by pp65-specific CD4+ T cells. Together, these data show that human DCs require licensing by cognate antigen-specific CD4+ T cells to elicit effective CD8+ T-cell-mediated immunity and fight off viral reactivation in CBT patients. IMPORTANCE Survival rates after stem cell transplantation are lowered by 25% when patients undergo reactivation of cytomegalovirus (CMV) that they harbor. Immune protection against CMV is mostly executed by white blood cells called killer T cells. We here show that for generation of optimally protective killer T-cell responses that respond to CMV, the early elicitation of help from a second branch of CMV-directed T cells, called helper T cells, is required.
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Prognostic significance of circulating CD19+ B lymphocytes in EBV-associated nasopharyngeal carcinoma. Med Oncol 2014; 31:198. [DOI: 10.1007/s12032-014-0198-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Accepted: 08/22/2014] [Indexed: 10/24/2022]
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Pan L, Weng R, Zhang J, Wang J, Tang Y, Deng N. Immune Response of the VEGF/bFGF Complex Peptide Vaccine and Function of Immune Antibodies in Inhibiting Migration of HUVEC Cells and Proliferation of Cancer Cells. Int J Pept Res Ther 2014. [DOI: 10.1007/s10989-014-9414-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kissick HT, Sanda MG, Dunn LK, Arredouani MS. Immunization with a peptide containing MHC class I and II epitopes derived from the tumor antigen SIM2 induces an effective CD4 and CD8 T-cell response. PLoS One 2014; 9:e93231. [PMID: 24690990 PMCID: PMC3972205 DOI: 10.1371/journal.pone.0093231] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 03/01/2014] [Indexed: 11/26/2022] Open
Abstract
Here, we sought to determine whether peptide vaccines designed harbor both class I as well as class II restricted antigenic motifs could concurrently induce CD4 and CD8 T cell activation against autologous tumor antigens. Based on our prior genome-wide interrogation of human prostate cancer tissues to identify genes over-expressed in cancer and absent in the periphery, we targeted SIM2 as a prototype autologous tumor antigen for these studies. Using humanized transgenic mice we found that the 9aa HLA-A*0201 epitope, SIM2237–245, was effective at inducing an antigen specific response against SIM2-expressing prostate cancer cell line, PC3. Immunization with a multi-epitope peptide harboring both MHC-I and MHC-II restricted epitopes induced an IFN-γ response in CD8 T cells to the HLA-A*0201-restricted SIM2237–245 epitope, and an IL-2 response by CD4 T cells to the SIM2240–254 epitope. This peptide was also effective at inducing CD8+ T-cells that responded specifically to SIM2-expressing tumor cells. Collectively, the data presented in this study suggest that a single peptide containing multiple SIM2 epitopes can be used to induce both a CD4 and CD8 T cell response, providing a peptide-based vaccine formulation for potential use in immunotherapy of various cancers.
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Affiliation(s)
- Haydn T. Kissick
- Department of Surgery, Urology Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Martin G. Sanda
- Department of Urology, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Laura K. Dunn
- Department of Surgery, Urology Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Mohamed S. Arredouani
- Department of Surgery, Urology Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
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Shi G, Zhou C, Wang D, Ma W, Liu B, Zhang S. Antitumor enhancement by adoptive transfer of tumor antigen primed, inactivated MHC-haploidentical lymphocytes. Cancer Lett 2014; 343:42-50. [DOI: 10.1016/j.canlet.2013.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 09/05/2013] [Accepted: 09/09/2013] [Indexed: 01/05/2023]
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18
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Homma Y, Taniguchi K, Murakami T, Nakagawa K, Nakazawa M, Matsuyama R, Mori R, Takeda K, Ueda M, Ichikawa Y, Tanaka K, Endo I. Immunological impact of neoadjuvant chemoradiotherapy in patients with borderline resectable pancreatic ductal adenocarcinoma. Ann Surg Oncol 2013; 21:670-6. [PMID: 24310792 DOI: 10.1245/s10434-013-3390-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND Little is known about the immunological effect of neoadjuvant chemoradiotherapy (NACRT) in the tumor microenvironment of pancreatic ductal adenocarcinoma. The objective of this study was to examine the immunological modifications induced by NACRT in patients with pancreatic cancer. METHODS Fifty-two patients with pancreatic cancer who underwent surgical resection were enrolled in this study. NACRT was administered to 22 patients, whereas the other 30 patients underwent surgical resection without NACRT. The resected tumor specimens were analyzed for the presence of tumor-infiltrating lymphocytes by using immunohistochemical staining for CD4, CD8, CD68, CD163, Foxp3, and major histocompatibility complex class I (MHC class I) antigen. RESULTS The number of CD4+ and CD8+ lymphocytes was significantly higher in patients who received NACRT than in those who did not receive NACRT. No significant difference in MHC class I expression was observed between the groups. In the NACRT group, patients with a high accumulation of CD8+ cells experienced longer overall survival than those with a low number of CD8+ cells. CONCLUSIONS NACRT may induce the accumulation of CD4+ and CD8+ cells in the tumor microenvironment and a high accumulation of CD8+ cells might be a good prognostic marker for pancreatic cancer treated with NACRT.
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Affiliation(s)
- Yuki Homma
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Talebian Yazdi M, Keene KR, Hiemstra PS, van der Burg SH. Recent progress in peptide vaccination in cancer with a focus on non-small-cell lung cancer. Expert Rev Vaccines 2013; 13:87-116. [PMID: 24308580 DOI: 10.1586/14760584.2014.862499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Active immunotherapy aimed at the stimulation of tumor-specific T cells has established itself within the clinic as a therapeutic option to treat cancer. One strategy is the use of so-called peptides that mimic genuine T-cell epitopes as vaccines to activate tumor-specific T cells. In various clinical trials, different types of vaccines, adjuvants and other immunomodulatory compounds were evaluated in patients with different types of tumors. Here, we review the trials published in the last 3 years focusing on the T-cell response, the effect of immunomodulation and potential relationships with clinical outcomes. Furthermore, we would like to make a case for the development of peptide vaccines aiming to treat non-small-cell lung cancer, the most common cause of cancer mortality.
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Affiliation(s)
- Mehrdad Talebian Yazdi
- Department of Pulmonology, Leiden University Medical Center (LUMC), Leiden, the Netherlands
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20
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Durán-Aniotz C, Segal G, Salazar L, Pereda C, Falcón C, Tempio F, Aguilera R, González R, Pérez C, Tittarelli A, Catalán D, Nervi B, Larrondo M, Salazar-Onfray F, López MN. The immunological response and post-treatment survival of DC-vaccinated melanoma patients are associated with increased Th1/Th17 and reduced Th3 cytokine responses. Cancer Immunol Immunother 2013; 62:761-72. [PMID: 23242374 PMCID: PMC11028820 DOI: 10.1007/s00262-012-1377-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 11/14/2012] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Immunization with autologous dendritic cells (DCs) loaded with a heat shock-conditioned allogeneic melanoma cell lysate caused lysate-specific delayed type hypersensitivity (DTH) reactions in a number of patients. These responses correlated with a threefold prolonged long-term survival of DTH(+) with respect to DTH(-) unresponsive patients. Herein, we investigated whether the immunological reactions associated with prolonged survival were related to dissimilar cellular and cytokine responses in blood. MATERIALS AND METHODS Healthy donors and melanoma patient's lymphocytes obtained from blood before and after vaccinations and from DTH biopsies were analyzed for T cell population distribution and cytokine release. RESULTS/DISCUSSION Peripheral blood lymphocytes from melanoma patients have an increased proportion of Th3 (CD4(+) TGF-β(+)) regulatory T lymphocytes compared with healthy donors. Notably, DTH(+) patients showed a threefold reduction of Th3 cells compared with DTH(-) patients after DCs vaccine treatment. Furthermore, DCs vaccination resulted in a threefold augment of the proportion of IFN-γ releasing Th1 cells and in a twofold increase of the IL-17-producing Th17 population in DTH(+) with respect to DTH(-) patients. Increased Th1 and Th17 cell populations in both blood and DTH-derived tissues suggest that these profiles may be related to a more effective anti-melanoma response. CONCLUSIONS Our results indicate that increased proinflammatory cytokine profiles are related to detectable immunological responses in vivo (DTH) and to prolonged patient survival. Our study contributes to the understanding of immunological responses produced by DCs vaccines and to the identification of follow-up markers for patient outcome that may allow a closer individual monitoring of patients.
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Affiliation(s)
- Claudia Durán-Aniotz
- Faculty of Medicine, Institute of Biomedical Sciences, University of Chile, 8380453, Santiago, Chile.
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21
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Trédan O, Manuel M, Clapisson G, Bachelot T, Chabaud S, Bardin-dit-Courageot C, Rigal C, Biota C, Bajard A, Pasqual N, Blay JY, Caux C, Ménétrier-Caux C. Patients with metastatic breast cancer leading to CD4+ T cell lymphopaenia have poor outcome. Eur J Cancer 2012; 49:1673-82. [PMID: 23265706 DOI: 10.1016/j.ejca.2012.11.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 11/19/2012] [Accepted: 11/21/2012] [Indexed: 12/14/2022]
Abstract
BACKGROUND Low lymphocyte count is a prognostic factor in cancer patients including metastatic breast cancer patients (MBC) but the relative role of each lymphocyte subtype is unclear in MBC. METHODS The impact of lymphocyte subsets was analysed in two prospective MBC patients' cohorts. Cohort A patients (n=103) were included before the first line of chemotherapy and cohort B patients (n=101) were included after at least one line of chemotherapy. Extensive phenotypic analyses were performed on fresh whole blood. Plasma cytokines levels were measured using commercially available Luminex-based multiplex kits. Prognostic value of lymphocyte subsets and circulating cytokines was analysed. RESULTS In both cohorts, severe lymphopaenia (<0.7 Giga/L) correlated with poor overall survival (OS) (median OS: 6.6 months versus 21.7 months in cohort A and 4.5 versus 9 months in cohort B). CD8(+), CD19(+) and CD56(+) T cell counts had no significant prognostic value for OS. After stratification (≤0.2, [0.20-0.45], >0.45 Giga/L), CD4 lymphopaenia appeared to be correlated with poor OS in both cohorts. Furthermore, severe CD4(+) lymphopaenia (≤0.2 Giga/L) was strongly correlated with poor OS in both cohorts (1.2 months versus 24.9 months in cohort A and 5.7 versus 13.1 months in cohort B). In multivariate analysis, after stratification CD4(+) lymphopaenia appeared to be an independent prognostic factor for OS in both cohorts. CD4(+) lymphopaenia correlated with low plasmatic levels of CCL22 that might directly contribute to CD4(+) lymphopaenia. CONCLUSIONS CD4(+) lymphopaenia was associated with reduced OS in MBC patients regardless of the chemotherapy line. Decreased levels of plasmatic CCL22 may contribute to CD4(+) lymphopaenia.
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Affiliation(s)
- Olivier Trédan
- Department of Medical Oncology, Centre Léon Bérard, 28 rue Laennec, Lyon 69008, France
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Zom GGP, Khan S, Filippov DV, Ossendorp F. TLR ligand-peptide conjugate vaccines: toward clinical application. Adv Immunol 2012; 114:177-201. [PMID: 22449782 DOI: 10.1016/b978-0-12-396548-6.00007-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Approaches to treat cancer with therapeutic vaccination have made significant progress. In order to induce efficient antitumor immunity, a vaccine should target and activate antigen-presenting cells, such as the dendritic cell, while delivering the tumor-derived antigen of choice. Conjugates of synthetic peptides and ligands of pattern-recognition receptors (PRRs) combine these features and, given their synthetic nature, can be produced under GMP conditions. Therefore, conjugation of antigenic peptides to potent PRR ligands is a promising vaccination approach for the treatment of cancer. This review focuses on the different PRR families that can be exploited for the design of conjugates and explores the results obtained so far with PRR ligands conjugated to antigen. The uptake and processing of Toll-like receptor ligand-peptide conjugates are discussed in more detail, as well as future directions that may further enhance the immunogenicity of conjugates.
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Affiliation(s)
- Gijs G P Zom
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, Leiden, The Netherlands
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23
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ZHANG W, NASU T, HOSAKA YZ, YASUDA M. Comparative Studies on the Distribution and Population of Immunocompetent Cells in Bovine Hemal Node, Lymph Node and Spleen. J Vet Med Sci 2012; 74:405-11. [DOI: 10.1292/jvms.11-0405] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Weidong ZHANG
- Department of Veterinary Anatomy, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Tetsuo NASU
- Department of Veterinary Anatomy, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Yoshinao Z. HOSAKA
- Department of Veterinary Anatomy, Faculty of Agriculture, Tottori University, Tottori 680-8550, Japan
| | - Masahiro YASUDA
- Department of Veterinary Anatomy, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
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van Hall T, van der Burg SH. Mechanisms of peptide vaccination in mouse models: tolerance, immunity, and hyperreactivity. Adv Immunol 2012; 114:51-76. [PMID: 22449778 DOI: 10.1016/b978-0-12-396548-6.00003-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The development of synthetic peptide vaccines capable of inducing strong and protective T-cell immunity has taken more than 20 years. Peptide vaccines come in many flavors and although their design is simple, their use is more complicated as the success of a particular peptide vaccine is influenced by many parameters. In fact, peptide vaccination may lead to tolerance, immunity or even hyper-reactivity causing death of the animals. Here we systematically dissect the parameters that influence the final outcome of peptide vaccines as examined in mouse models and this will guide the rational design of new vaccines in the future.
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Affiliation(s)
- Thorbald van Hall
- Department of Clinical Oncology, Experimental Cancer Immunology and Therapy, Leiden University Medical Center, Leiden, Netherlands
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25
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Zingg U, Montani M, Frey D, Dirnhofer S, Esterman A, Went P, Oertli D. Tumour-infiltrating lymphocytes and survival in patients with adenocarcinoma of the oesophagus. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2010; 36:670-7. [DOI: 10.1016/j.ejso.2010.05.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Revised: 04/02/2010] [Accepted: 05/04/2010] [Indexed: 10/19/2022]
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26
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Kitamura H, Sedlik C, Jacquet A, Zaragoza B, Dusseaux M, Premel V, Sastre-Garau X, Lantz O. Long Peptide Vaccination Can Lead to Lethality through CD4+ T Cell-Mediated Cytokine Storm. THE JOURNAL OF IMMUNOLOGY 2010; 185:892-901. [DOI: 10.4049/jimmunol.1000933] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Mirshahidi S, Kramer VG, Whitney JB, Essono S, Lee S, Dranoff G, Anderson KS, Ruprecht RM. Overlapping synthetic peptides encoding TPD52 as breast cancer vaccine in mice: prolonged survival. Vaccine 2009; 27:1825-33. [PMID: 19201387 PMCID: PMC4477950 DOI: 10.1016/j.vaccine.2009.01.089] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2008] [Revised: 01/13/2009] [Accepted: 01/16/2009] [Indexed: 12/21/2022]
Abstract
Peptide-based vaccines, one of several anti-tumor immunization strategies currently under investigation, can elicit both MHC Class I-restricted (CD8(+)) and Class II-restricted (CD4(+)) responses. However, the need to identify specific T-cell epitopes in the context of MHC alleles has hampered the application of this approach. We have tested overlapping synthetic peptides (OSP) representing a tumor antigen as a novel approach that bypasses the need for epitope mapping, since OSP contain all possible epitopes for both CD8(+) and CD4(+) T cells. Here we report that vaccination of inbred and outbred mice with OSP representing tumor protein D52 (TPD52-OSP), a potential tumor antigen target for immunotherapy against breast, prostate, and ovarian cancer, was safe and induced specific CD8(+) and CD4(+) T-cell responses, as demonstrated by development of specific cytotoxic T cell (CTL) activity, proliferative responses, interferon (IFN)-gamma production and CD107a/b expression in all mice tested. In addition, TPD52-OSP-vaccinated BALB/c mice were challenged with TS/A breast carcinoma cells expressing endogenous TPD52; significant survival benefits were noted in vaccine recipients compared to unvaccinated controls (p<0.001). Our proof-of-concept data demonstrate the safety and efficacy of peptide library-based cancer vaccines that obviates the need to identify epitopes or MHC backgrounds of the vaccinees. We show that an OSP vaccination approach can assist in the disruption of self-tolerance and conclude that our approach may hold promise for immunoprevention of early-stage cancers in a general population.
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Affiliation(s)
- Saied Mirshahidi
- Department of Cancer Immunology & AIDS, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
- Department of Medicine, Harvard Medical School, 44 Binney St, Boston, MA, 02115
| | - Victor G. Kramer
- Department of Cancer Immunology & AIDS, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
| | - James B. Whitney
- Department of Cancer Immunology & AIDS, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
- Department of Medicine, Harvard Medical School, 44 Binney St, Boston, MA, 02115
| | - Sosthène Essono
- Department of Cancer Immunology & AIDS, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
- Department of Medicine, Harvard Medical School, 44 Binney St, Boston, MA, 02115
| | - Sandra Lee
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
- Harvard School of Public Health, 44 Binney St, Boston, MA, 02115
| | - Glenn Dranoff
- Department of Medicine, Harvard Medical School, 44 Binney St, Boston, MA, 02115
- Department of Medical Oncology, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
| | - Karen S. Anderson
- Department of Medicine, Harvard Medical School, 44 Binney St, Boston, MA, 02115
- Department of Medical Oncology, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
| | - Ruth M. Ruprecht
- Department of Cancer Immunology & AIDS, Dana-Farber Cancer Institute, 44 Binney St, Boston, MA, 02115
- Department of Medicine, Harvard Medical School, 44 Binney St, Boston, MA, 02115
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Driessens G, Gordower L, Nuttin L, Stordeur P, Blocklet D, Egrise D, Velu T, Bruyns C. Therapeutic efficacy of antitumor dendritic cell vaccinations correlates with persistent Th1 responses, high intratumor CD8+ T cell recruitment and low relative regulatory T cell infiltration. Cancer Immunol Immunother 2008; 57:1745-56. [PMID: 18369621 PMCID: PMC11030040 DOI: 10.1007/s00262-008-0500-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2007] [Accepted: 02/28/2008] [Indexed: 01/20/2023]
Abstract
Despite the increasing number of immunotherapeutic strategies for the treatment of cancer, most approaches have failed to correlate the induction of an anti-tumor immune response with therapeutic efficacy. We therefore took advantage of a successful vaccination strategy-combining dendritic cells and irradiated GM-CSF secreting tumor cells-to compare the immune response induced against 9L gliosarcoma tumors in cured rats versus those with progressively growing tumors. At the systemic level, the tumor specific cytotoxic responses were quite heterogeneous in uncured vaccinated rats, and were surprisingly often high in animals with rapidly-growing tumors. IFN-gamma secretion by activated splenic T cells was more discriminative as the CD4+ T cell-mediated production was weak in uncured rats whereas high in cured ones. At the tumor level, regressing tumors were strongly infiltrated by CD8+ T cells, which demonstrated lytic capacities as high as their splenic counterparts. In contrast, progressing tumors were weakly infiltrated by T cells showing impaired cytotoxic activities. Proportionately to the T cell infiltrate, the expression of Foxp3 was increased in progressive tumors suggesting inhibition by regulatory T cells. In conclusion, the main difference between cured and uncured vaccinated animals does not depend directly upon the induction of systemic cytotoxic responses. Rather the persistence of higher CD4+ Th1 responses, a high intratumoral recruitment of functional CD8+ T cells, and a low proportion of regulatory T cells correlate with tumor rejection.
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Affiliation(s)
- Gregory Driessens
- LCCE-IRIBHM, Faculty of Medicine, Université Libre de Bruxelles (ULB), route de Lennik 808, 1070, Bruxelles, Belgium.
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Maciag PC, Seavey MM, Pan ZK, Ferrone S, Paterson Y. Cancer immunotherapy targeting the high molecular weight melanoma-associated antigen protein results in a broad antitumor response and reduction of pericytes in the tumor vasculature. Cancer Res 2008; 68:8066-75. [PMID: 18829565 DOI: 10.1158/0008-5472.can-08-0287] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The high molecular weight melanoma-associated antigen (HMW-MAA), also known as melanoma chondroitin sulfate proteoglycan, has been used as a target for the immunotherapy of melanoma. This antigen is expressed on the cell surface and has a restricted distribution in normal tissues. Besides its expression in a broad range of transformed cells, this antigen is also found in pericytes, which are important for tumor angiogenesis. We generated a recombinant Listeria monocytogenes (Lm-LLO-HMW-MAA-C) that expresses and secretes a fragment of HMW-MAA (residues 2,160-2,258) fused to the first 441 residues of the listeriolysin O (LLO) protein. Immunization with Lm-LLO-HMW-MAA-C was able to impede the tumor growth of early established B16F10-HMW-MAA tumors in mice and both CD4(+) and CD8(+) T cells were required for therapeutic efficacy. Immune responses to a known HLA-A2 epitope present in the HMW-MAA(2160-2258) fragment was detected in the HLA-A2/K(b) transgenic mice immunized with Lm-LLO-HMW-MAA-C. Surprisingly, this vaccine also significantly impaired the in vivo growth of other tumorigenic cell lines, such as melanoma, renal carcinoma, and breast tumors, which were not engineered to express HMW-MAA. One hypothesis is that the vaccine could be targeting pericytes, which are important for tumor angiogenesis. In a breast tumor model, immunization with Lm-LLO-HMW-MAA-C caused CD8(+) T-cell infiltration in the tumor stroma and a significant decrease in the number of pericytes in the tumor blood vessels. In conclusion, a Lm-based vaccine against HMW-MAA can trigger cell-mediated immune responses to this antigen that can target not only tumor cells but also pericytes in the tumor vasculature.
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Affiliation(s)
- Paulo Cesar Maciag
- Department of Microbiology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104-6076, USA
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Stoitzner P, Green LK, Jung JY, Price KM, Atarea H, Kivell B, Ronchese F. Inefficient presentation of tumor-derived antigen by tumor-infiltrating dendritic cells. Cancer Immunol Immunother 2008; 57:1665-73. [PMID: 18311487 PMCID: PMC11029823 DOI: 10.1007/s00262-008-0487-4] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2007] [Accepted: 02/12/2008] [Indexed: 11/30/2022]
Abstract
BACKGROUND Transplantable B16 melanoma is widely used as a tumor model to investigate tumor immunity. We wished to characterize the leukocyte populations infiltrating B16 melanoma tumors, and the functional properties of tumor-infiltrating dendritic cells (TIDC). MATERIALS AND METHODS We used the B16 melanoma cell line expressing ovalbumin protein (OVA) to investigate the phenotype and T cell stimulatory capacity of TIDC. RESULTS The majority of leukocytes in B16 melanoma were macrophages, which colocalized with TIDCs, B and T cells to the peripheral area of the tumor. Both myeloid and plasmacytoid DC populations were present within tumors. Most of these DCs appeared immature, but about a third expressed a mature phenotype. TIDCs did not present tumor-derived antigen, as they were unable to induce the proliferation of tumor-specific CD4+ and CD8+ T cells in vitro unless in the presence of specific peptides. Some presentation of tumor-derived antigen could be demonstrated in the tumor-draining lymph node using in vivo proliferation assays. However, while proliferation of CD8+ T cells was reproducibly demonstrated, no proliferation of CD4+ T cells was observed. CONCLUSION In summary, our data suggest that DCs in tumors have limited antigen-presenting function. Inefficient antigen presentation extends to the tumor-draining lymph node, and may affect the generation of antitumor immune responses.
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Kalli KR, Krco CJ, Hartmann LC, Goodman K, Maurer MJ, Yu C, Johnson EM, Erskine CL, Disis ML, Wettstein PJ, Fikes JD, Beebe M, Ishioka G, Knutson KL. An HLA-DR-degenerate epitope pool detects insulin-like growth factor binding protein 2-specific immunity in patients with cancer. Cancer Res 2008; 68:4893-901. [PMID: 18559537 PMCID: PMC2744636 DOI: 10.1158/0008-5472.can-07-6726] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recent studies have shown the importance of helper CD4 T cells in initiating and sustaining tumor-specific CD8 T-cell immunity. This has paved the way for identifying MHC class II epitopes that could be incorporated into class I-based vaccines. In this study, the goal was to identify an HLA-DR-degenerate epitope pool derived from insulin-like growth factor binding protein 2 (IGFBP-2). IGFBP-2, a regulator of insulin-like growth factor action, is overexpressed in the majority of breast and ovarian cancers. Using algorithms, we predicted 29 HLA-DR1-binding epitopes. Binding assays targeting 15 different HLA-DRs revealed that 10 epitopes were degenerate, binding to at least four different HLA-DR variants. An IFN-gamma enzyme-linked immunosorbent spot assay was used to assess immunity to these 10 epitopes in 48 patients with either breast or ovarian cancer and 18 controls. Elevated T-cell immunity in patients was detected in 4 of the 10 epitopes (IGFBP2.17, IGFBP2.22, IGFBP2.249, and IGFBP2.293). The cumulative T-cell frequency of these four epitopes was elevated in patients relative to controls. All four peptides are naturally processed and presented to CD4 T-cells. The degenerate pool of peptides covers nearly 80% of patients and may be useful for augmenting CD4 T-cell immunity in patients undergoing immunization.
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Affiliation(s)
| | | | | | - Karin Goodman
- Department of Oncology, Mayo Clinic, Rochester, Minnesota
| | - Matthew J. Maurer
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Chao Yu
- Department of Immunology, Mayo Clinic, Rochester, Minnesota
| | | | | | - Mary L. Disis
- Tumor Vaccine Group, Center for Translational Medicine in Women's Health, Seattle, Washington
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Bijker MS, van den Eeden SJF, Franken KL, Melief CJM, Offringa R, van der Burg SH. CD8+ CTL priming by exact peptide epitopes in incomplete Freund's adjuvant induces a vanishing CTL response, whereas long peptides induce sustained CTL reactivity. THE JOURNAL OF IMMUNOLOGY 2007; 179:5033-40. [PMID: 17911588 DOI: 10.4049/jimmunol.179.8.5033] [Citation(s) in RCA: 196] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Therapeutic vaccination trials, in which patients with cancer were vaccinated with minimal CTL peptide in oil-in-water formulations, have met with limited success. Many of these studies were based on the promising data of mice studies, showing that vaccination with a short synthetic peptide in IFA results in protective CD8(+) T cell immunity. By use of the highly immunogenic OVA CTL peptide in IFA as a model peptide-based vaccine, we investigated why minimal CTL peptide vaccines in IFA performed so inadequately to allow full optimization of peptide vaccination. Injection of the minimal MHC class I-binding OVA(257-264) peptide in IFA transiently activated CD8(+) effector T cells, which eventually failed to undergo secondary expansion or to kill target cells, as a result of a sustained and systemic presentation of the CTL peptides gradually leaking out of the IFA depot without systemic danger signals. Complementation of this vaccine with the MHC class II-binding Th peptide (OVA(323-339)) restored both secondary expansion and in vivo effector functions of CD8(+) T cells. Simply extending the CTL peptide to a length of 30 aa also preserved these CD8(+) T cell functions, independent of T cell help, because the longer CTL peptide was predominantly presented in the locally inflamed draining lymph node. Importantly, these functional differences were reproduced in two additional model Ag systems. Our data clearly show why priming of CTL with minimal peptide epitopes in IFA is suboptimal, and demonstrate that the use of longer versions of these CTL peptide epitopes ensures the induction of sustained effector CD8(+) T cell reactivity in vivo.
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MESH Headings
- Amino Acid Sequence
- Animals
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cell Line, Tumor
- Epitopes, T-Lymphocyte/administration & dosage
- Epitopes, T-Lymphocyte/immunology
- Epitopes, T-Lymphocyte/metabolism
- Freund's Adjuvant/administration & dosage
- Freund's Adjuvant/immunology
- Freund's Adjuvant/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Molecular Sequence Data
- Ovalbumin/administration & dosage
- Ovalbumin/immunology
- Ovalbumin/metabolism
- Peptide Fragments/administration & dosage
- Peptide Fragments/immunology
- Peptide Fragments/metabolism
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- Time Factors
- Vaccination
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Affiliation(s)
- Martijn S Bijker
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Centre, The Netherlands
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Sforcin JM. Propolis and the immune system: a review. JOURNAL OF ETHNOPHARMACOLOGY 2007; 113:1-14. [PMID: 17580109 DOI: 10.1016/j.jep.2007.05.012] [Citation(s) in RCA: 344] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2007] [Revised: 05/07/2007] [Accepted: 05/08/2007] [Indexed: 05/15/2023]
Abstract
Propolis has been used empirically for centuries and it was always mentioned as an immunomodulatory agent. In recent years, in vitro and in vivo assays provided new information concerning its mechanisms of action, thus a review dealing with propolis and the immune system became imperative. This review compiles data from our laboratory as well as from other researchers, focusing on its chemical composition and botanical sources, the seasonal effect on its composition and biological properties, its immunomodulatory and antitumor properties, considering its effects on antibody production and on different cells of the immune system, involving the innate and adaptive immune response. In vitro and in vivo assays demonstrated the modulatory action of propolis on murine peritoneal macrophages, increasing their microbicidal activity. Its stimulant action on the lytic activity of natural killer cells against tumor cells, and on antibody production was demonstrated. Propolis inhibitory effects on lymphoproliferation may be associated to its anti-inflammatory property. In immunological assays, the best results were observed when propolis was administered over a short-term to animals. Propolis antitumor property and its anticarcinogenic and antimutagenic potential are discussed. Since humans have used propolis for different purposes and propolis-containing products have been marketed, the knowledge of its properties with scientific basis is not only of academic interest but also of those who use propolis as well. This review opens a new perspective on the investigation of propolis biological properties, mainly with respect to the immune system.
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Affiliation(s)
- J M Sforcin
- Department of Microbiology and Immunology, Biosciences Institute, UNESP, 18618-000 Botucatu, SP, Brazil.
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Hildenbrand B, Sauer B, Kalis O, Stoll C, Freudenberg MA, Niedermann G, Giesler JM, Jüttner E, Peters JH, Häring B, Leo R, Unger C, Azemar M. Immunotherapy of patients with hormone-refractory prostate carcinoma pre-treated with interferon-gamma and vaccinated with autologous PSA-peptide loaded dendritic cells--a pilot study. Prostate 2007; 67:500-8. [PMID: 17262804 DOI: 10.1002/pros.20539] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
PURPOSE We conducted a pilot trial to assess the feasibility and tolerability of a prime/boost vaccine strategy using interferon-gamma (IFN-gamma) and autologous dendritic cells (DCs) pulsed with HLA-A2-specific prostate-specific antigen (PSA) peptides (PSA-1 [141-150]; PSA-2 [146-156]; PSA-3 [154-163]) for the treatment of 12 patients with hormone refractory prostate carcinoma. PATIENTS AND METHODS All patients were vaccinated four times with intracutaneously injected PSA-peptide loaded DCs after subcutaneous administration of IFN-gamma 2 hr before DC administration (50 microg/m(2) body surface). Objectives were safety, clinical benefit, clinical and biochemical response, quality of life, and immunological parameters. RESULTS The vaccination was well tolerated without any vaccination-associated adverse events. One partial and one mixed responder were identified, four patients showed stable diseases. Two patients had a decrease and four a slow-down velocity slope in the PSA serum level. All responders showed a positive DTH-response, but only two a slight increase in PSA-peptide specific T-lymphocytes. CONCLUSION The immunotherapy with IFN-gamma and PSA-peptide loaded DCs was feasible and well tolerated. The observed responses imply a potential antitumor activity.
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Ojima T, Iwahashi M, Nakamura M, Matsuda K, Nakamori M, Ueda K, Naka T, Ishida K, Primus FJ, Yamaue H. Successful cancer vaccine therapy for carcinoembryonic antigen (CEA)-expressing colon cancer using genetically modified dendritic cells that express CEA and T helper-type 1 cytokines in CEA transgenic mice. Int J Cancer 2007; 120:585-93. [PMID: 17096339 DOI: 10.1002/ijc.22298] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This study was designed to determine whether the vaccination of genetically modified dendritic cells (DCs) simultaneously expressing carcinoembryonic antigen (CEA), granulocyte macrophage colony-stimulating factor (GM-CSF) and interleukin 12 (IL-12) can overcome the peripheral T-cell tolerance to CEA and thereby elicit a therapeutic response in CEA transgenic mice. CEA transgenic mice were immunized once by subcutaneous injection with DCs adenovirally transduced with CEA and T helper-type 1 cytokine genes. The cytotoxic activity of spleen cells against CEA-expressing tumors, MC38-CEA, in the mice immunized with DCs expressing CEA (DC-AxCACEA) was higher than that in those immunized with DCs-AxCALacZ (p < 0.0001), and was augmented by the cotransduction with the GM-CSF/IL-12 gene (p < 0.05). The vaccination with DC-AxCACEA/GM-CSF/IL-12 could elicit a more potent therapeutic immunity than the vaccination with DC-AxCACEA in subcutaneous tumor models (p < 0.0001), and 4 of 5 mice showed a complete eradication of the subcutaneous tumors in these vaccination groups. Even in a large tumor model, this vaccination therapy completely eliminated the subcutaneous tumors in all mice. This antitumor activity mostly vanished with the depletion of CD8(+) T cells and NK cells in vivo and was completely abrogated with the depletion of CD4(+) T cells. A histopathological examination showed no evidence of an autoimmune reaction. No other adverse effects were observed. This vaccination strategy resulted in the generation of highly efficient therapeutic immune responses against MC38-CEA in the absence of autoimmune responses and demonstrated no adverse effects, and may therefore be useful for future clinical applications as a cancer vaccine therapy.
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Affiliation(s)
- Toshiyasu Ojima
- Second Department of Surgery, Wakayama Medical University, Wakayama, Japan
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Zhao Y, Sun Y, Niu Z, Li Q, Peng J, Wang J, Langnas AN. A novel approach to generate host antitumor T cells: adoptive immunotherapy by T cells maturing in xenogeneic thymus. J Immunother 2007; 30:83-8. [PMID: 17198086 DOI: 10.1097/01.cji.0000211322.45772.d4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mouse or human T cells developing in xenogeneic porcine thymus are functional. With efficient peripheral repopulation of mouse T cells by grafting fetal pig thymus (FP THY), B6 nude mice were immunized with inactivated syngeneic melanoma, B16 cells. Splenocytes from B16-immunized FP THY-grafted B6 nude mice efficiently killed B16, but not EL4 target cells in cytotoxicity assays in vitro. Adoptive transfer of splenocytes from B16-immunizd FP THY-grafted B6 nude mice to B16-bearing B6 mice significantly prolonged recipient survival and inhibited B16 solid tumor growth when B16 cells were injected IV or SC, respectively, compared with the identical controls. Splenocytes from nonimmunized FP THY-grafted B6 nude mice failed to protect B6 mice from B16-induced mortality. The present data have demonstrated that mouse T cells maturing in xenogeneic thymus have the ability to kill syngeneic tumor cells. This study may offer a novel resource to produce host antitumor T cells for adoptive immunotherapy of tumor patients.
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Affiliation(s)
- Yong Zhao
- Transplantation Biology Research Division, The State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences.
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Kim HS, Park H, Cho IY, Paik HD, Park E. Dietary supplementation of probiotic Bacillus polyfermenticus, Bispan strain, modulates natural killer cell and T cell subset populations and immunoglobulin G levels in human subjects. J Med Food 2006; 9:321-7. [PMID: 17004893 DOI: 10.1089/jmf.2006.9.321] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
A probiotic is a viable microbial dietary supplement that has beneficial effects such as prevention and treatment of specific gastrointestinal disorders, including counteracting gut barrier dysfunction associated with inflammation and infection. Probiotic Bacillus polyfermenticus, which is commonly called Bispan strain, has been appropriately used for the treatment of long-term intestinal disorders. The use of B. polyfermenticus for immune-related chronic intestinal disease may be appropriate considering that about 80% of the body's immune system is localized in the gastrointestinal tract. The current study aimed to evaluate the effect of probiotic B. polyfermenticus on the immune response of human subjects through the quantification of immune cell population and serum levels of immunoglobulins (Igs). Twenty-five male subjects, 20-35 years of age, were randomly assigned to either a control group (n =12) supplemented with a placebo or the experimental group (n = 13) supplemented with B. polyfermenticus tablets at a dose of 3.1 x 10(8) colony-forming units/day for 8 weeks. Dietary intake analyses from 3-day dietary records from three consecutive days including one weekend day and two weekdays revealed no significant differences in total energy and nutrient intakes between the two groups. The humoral immune response was monitored by the number of total B lymphocytes and serum concentrations of IgG, IgA, and IgM. To investigate the changes in immune cell populations, percentages of total T lymphocytes, CD4+ helper T cells, CD8+ cytotoxic T cells, and CD56+ natural killer (NK) cells were quantified. The concentration of IgG in the experimental group was 12% higher than in the placebo group after 8 weeks of Bispan supplementation. Also, the percentages of CD4+ helper T cells, CD8+cytotoxic T cells, and CD56+ NK cells in the Bispan strain-supplemented group were 32%, 28%, and 35% higher, respectively, compared with the control group. Because of a higher increment of the CD4+ T cell subset than CD8+ T cells, the ratio of CD4+/CD8+ T cells was greater in the experimental group. This study suggests that the supplementation of B. polyfermenticus has a potentially positive effect on immune function by enhancing IgG production as well as by modulating the number of immune cell population such as CD4+ and CD8+ T cells and NK cells.
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Affiliation(s)
- Hyun-Sook Kim
- Major in Food and Nutrition, Division of Human Ecology, College of Human Ecology, Sookmyung Women's University, Masan, Republic of Korea.
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38
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Mi JQ, Manches O, Wang J, Perron P, Weisbuch S, Marche PN, Renversez JC, Bensa JC, Sotto JJ, Cahn JY, Leroux D, Bonnefoix T. Development of autologous cytotoxic CD4+T clones in a human model of B-cell non-Hodgkin follicular lymphoma. Br J Haematol 2006; 135:324-35. [PMID: 16984392 DOI: 10.1111/j.1365-2141.2006.06294.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Immunotherapy for cancer aims to generate cytotoxic cells that are capable of eradicating tumour cells. It has been well demonstrated that helper, non-cytotoxic CD4(+) T cells are important for the induction and maintenance of anti-tumour immunity exerted by cytotoxic CD8(+) T cells. In contrast, the existence of direct anti-tumour, effector cytotoxic CD4(+) T cells remains elusive, mainly due to the paucity of reliable experimental data, especially in human B-cell non-Hodgkin lymphomas. This study developed an appropriate, autologous follicular B-cell non-Hodgkin follicular lymphoma model, including the in vitro establishment of a malignant, human leucocyte antigen class I (HLA-I) deficient B-cell line, and the generation of three autologous anti-tumour cytotoxic CD4(+) T-cell clones originating from the peripheral blood of the same patient. These three clones were considered as tumour specific, because they were capable of killing the malignant, HLA-I-deficient B-cell line through a classical HLA-II restricted perforin-mediated pathway, but did not lyse the Epstein-Barr virus-infected autologous normal B lymphocytes. All three CD4(+)clones were T-cell receptor Vbeta17-Dbeta1-Jbeta1.2 and exhibited an identical complementarity-determining region 3, suggesting the immunodominance of a single peptide antigen presented by tumour cells. Such lymphoma models would provide a useful tool for in vivo expansion and the adoptive transfer of selected CD4(+) cytotoxic cells in immunotherapeutic strategies.
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Affiliation(s)
- Jian-Qing Mi
- Institut National de la Santé et de la Recherche Médicale [Inserm E353, Lymphoma Research Group (Molecular Bases of Tumor Progression)], Université Joseph Fourier, La Tronche, France.
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39
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Eiz-Vesper B, Horn PA, Daubert C, Khattab B, Blasczyk R. Tetanus toxoid provides efficient T-cell help for the induction of HA-1(H) cytotoxic T cells. Transfusion 2006; 46:1210-20. [PMID: 16836569 DOI: 10.1111/j.1537-2995.2006.00872.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND In vitro generation and expansion of leukemia-reactive T cells may improve the efficacy and specificity of cellular immunotherapy against hematologic malignancies in the context of allogeneic stem cell transplantation. Since the expression of minor histocompatibility antigen HA-1(H) is limited to hematopoietic cells, ex vivo generated HA-1(H)-specific CD8+ cytotoxic T lymphocytes (CTLs) can be used for adoptive immunotherapy. STUDY DESIGN AND METHODS Numerous studies have shown that primary CTL induction from naïve precursors requires professional antigen-presenting cells. Here, the feasibility of ex vivo induction of HA-1(H)-specific CD8+ CTLs is demonstrated from unfractionated peripheral blood mononuclear cells (PBMNCs) from healthy blood donors when CD4+ T-cell help is provided during primary stimulation. As a stimulus for the induction of T-cell help, tetanus toxoid (TT) was used. RESULTS After the second restimulation cycle, approximately 1 percent of CD8+ T cells stained positively with the HLA-A*0201/HA-1(H) pentamer. Positive T cells were further expanded more than 1000-fold by antigen-independent stimulation with anti-CD3/CD28 monoclonal antibodies. HA-1(H)-induced T cells showed the classical phenotype for CD8+ memory effector cells: the phenotype changed from a mixed CD45RA/RO phenotype to an activated phenotype characterized by high expression of CD45RO and no expression of CCR7. The generated T cells revealed a very potent CTL response, even at low E:T ratios. CONCLUSION This study demonstrates that TT provides a very potent and cost-effective tool for the in vitro induction of antigen-specific CTLs from precursor PBMNCs that can easily be adapted to GMP conditions for translational purposes.
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Affiliation(s)
- Britta Eiz-Vesper
- Institute for Transfusion Medicine, Hannover Medical School, Hannover, Germany
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40
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Zhao Y, Zheng Z, Khong HT, Rosenberg SA, Morgan RA. Transduction of an HLA-DP4-restricted NY-ESO-1-specific TCR into primary human CD4+ lymphocytes. J Immunother 2006; 29:398-406. [PMID: 16799335 PMCID: PMC1510955 DOI: 10.1097/01.cji.0000203082.20365.7f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
cDNAs encoding functional T cell receptor (TCR) alpha and beta chains from a CD4+ T cell line (SG6) generated by repeated stimulation of a melanoma patient's peripheral blood mononuclear cells with HLA-DP4-restricted, NY-ESO-1-specific peptide p161-180 were cloned using a 5'rapid amplification of cDNA end method. Three different TCR alpha chains and 7 TCR beta chains were found among the 84 alpha and 162 beta cDNA clones tested. By screening different combination of the alpha/beta chains using RNA electroporation, TRAV9-1 (Valpha22.1) and TRBV20-1 (Vbeta2) were found to be the functional pair in line SG6. Antibody blocking experiments confirmed that the specificity of TRAV9-1/TRBV20-1 mRNA-transfected T cells were CD4 dependent and HLA-DP4 restricted. A retroviral vector expressing both TRAV9-1 and TRBV20-1 was constructed and used for transduction of OKT3-stimulated peripheral blood lymphocytes from melanoma patients. TCR-transduced CD4 T cells were capable of recognizing peptide-pulsed antigen-presenting cells (Epstein-Barr virus transformed B-cells, dendritic cells, and peripheral blood mononuclear cells), and protein-pulsed dendritic cells. Transduced cells were also capable of proliferation upon peptide stimulation and recognized peptide concentrations that were recognized by the parental line (0.2 microM). In contrast to SG6, which could not recognize human tumors, TCR-transduced CD4 T cells could specifically recognize NY-ESO-1/HLA-DP4-expressing melanoma cells. Major histocompatibility complex class II TCR-transduced CD4 T cells provides an alternative source of tumor antigen-specific T cells for adoptive immunotherapy of cancer patients.
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MESH Headings
- CD4-Positive T-Lymphocytes/immunology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cloning, Molecular
- DNA, Complementary
- Epitopes
- HLA-DP Antigens/immunology
- HLA-DP beta-Chains
- Humans
- Melanoma/immunology
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Transduction, Genetic
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Affiliation(s)
- Yangbing Zhao
- Surgery Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 10 Center Drive, Bethesda, MD 20892, USA
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41
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D'Amico G, Bonamino M, Dander E, Marin V, Basso G, Balduzzi A, Biagi E, Biondi A. T cells stimulated by CD40L positive leukemic blasts-pulsed dendritic cells meet optimal functional requirements for adoptive T-cell therapy. Leukemia 2006; 20:2015-24. [PMID: 16990769 DOI: 10.1038/sj.leu.2404390] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Adoptive T-cell immunotherapy may provide complementary therapy for childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL). In this study, we have analyzed the functional characteristics of anti-BCP-ALL effector T cells generated by co-culturing T lymphocytes and dendritic cells (DC) from allogeneic human stem cell transplantation (HSCT) donors. After 21-day co-culture with DC pulsed with CD40L+ apoptotic BCP-ALL blasts, T cells presented with both effector and central memory phenotype, and showed high and specific cytotoxic activity against leukemic cells (average lysis = 77%), mostly mediated by CD8+ T cells. Noticeably, growth of CD4 T cells was maintained (45% of total cells), which actively produced Th1 cytokines (IFN-gamma, TNF-alpha, IL-2), but not IL-4, IL-5 and IL-10. Anti-BCP-ALL T cells expressed CD49d and CXCR4 (implicated in the recruitment to bone marrow), and CD62L and CCR7 (involved in the migration to lymphoid organs). In accordance with this profile, T cells significantly migrated in response to the chemokines CXCL12 and CCL19. In conclusion, stimulation of T cells with CD40L+BCP-ALL cells-loaded DC not only elicited the generation of potent and specific anti-leukemic cytotoxic effectors, but also the differentiation of specific and functional Th-1 CD4 lymphocytes. These effectors are fully equipped to reach leukemia-infiltrated tissues and have characteristics to support and orchestrate the anti-tumor immune-response.
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Affiliation(s)
- G D'Amico
- Centro Ricerca M. Tettamanti, Clinica Pediatrica Università Milano-Bicocca, Ospedale San Gerardo, Monza, Italy.
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Abstract
During the last decade, increased understanding of the molecular mechanisms responsible for immune activation to protect against challenges by tumor cells has revolutionized the field of immunotherapy research. It has been demonstrated that the dysfunction of the host's immune system represents one of the major mechanisms by which tumors evade immunosurveillance. This is due, for example, to T cell anergy, the existence of regulatory T cells, and systemic defects of dendritic cells derived from tumor patients. In addition, escape from immunosurveillance can also be linked to tumor-related factors, including secretion of immunosuppressive cytokines, resistance to apoptosis, and deficient expression of immunomodulatory molecules and major histocompatibility complex (MHC) class I antigens possibly due to immunoselection. Both host- and tumor-related mechanisms can lead to a failure to mount a proper anti-tumor-specific immune response, and these are frequently key factors in limiting the success of cancer immunotherapy.
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Affiliation(s)
- Barbara Seliger
- Institute of Medical Immunology, Martin Luther University Halle-Wittenberg, Halle, Germany.
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Salucci V, Mennuni C, Calvaruso F, Cerino R, Neuner P, Ciliberto G, La Monica N, Scarselli E. CD8+ T-cell tolerance can be broken by an adenoviral vaccine while CD4+ T-cell tolerance is broken by additional co-administration of a Toll-like receptor ligand. Scand J Immunol 2006; 63:35-41. [PMID: 16398699 DOI: 10.1111/j.1365-3083.2006.01706.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
T-cell tolerance to tumor antigens is a considerable challenge to cancer immunotherapy. The existence of a murine model transgenic for human carcinoembryonic antigen (CEA) allows CEA vaccination efficacy to be studied in a physiologically tolerant context. Immunization of CEA-transgenic mice with an adenoviral vector coding for CEA induced a significant CD8+ T-cell response specific to CEA but failed to induce CEA-specific CD4+ T cells and antibodies. To overcome CD4+ T-cell tolerance, we explored the effect of adjuvants inducing in vivo dendritic cell maturation. Two different Toll-like receptor ligands, monophosphoryl lipid A (MPL) and CpG motif-containing oligodeoxynucleotides (CpG-ODN), were tested. CD4+-mediated IFN-gamma production was induced in the CEA-transgenic mice only when the genetic immunization was performed in the presence of these adjuvants. Moreover, CpG-ODN had a greater effect than MPL in inducing CD4+ T-cell response and enabling anti-CEA antibody production.
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Affiliation(s)
- V Salucci
- Istituto di Ricerca di Biologia Molecolare, Pomezia, Italy
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44
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Kuwashima N, Nishimura F, Eguchi J, Sato H, Hatano M, Tsugawa T, Sakaida T, Dusak JE, Fellows-Mayle WK, Papworth GD, Watkins SC, Gambotto A, Pollack IF, Storkus WJ, Okada H. Delivery of dendritic cells engineered to secrete IFN-alpha into central nervous system tumors enhances the efficacy of peripheral tumor cell vaccines: dependence on apoptotic pathways. THE JOURNAL OF IMMUNOLOGY 2005; 175:2730-40. [PMID: 16081851 DOI: 10.4049/jimmunol.175.4.2730] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We tested whether modulation of the CNS-tumor microenvironment by delivery of IFN-alpha-transduced dendritic cells (DCs: DC-IFN-alpha) would enhance the therapeutic efficacy of peripheral vaccinations with cytokine-gene transduced tumor cells. Mice bearing intracranial GL261 glioma or MCA205 sarcoma received peripheral immunizations with corresponding irradiated tumor cells engineered to express IL-4 or GM-CSFs, respectively, as well as intratumoral delivery of DC-IFN-alpha. This regimen prolonged survival of the animals and induced tumor-specific CTLs that expressed TRAIL, which in concert with perforin and Fas ligand (FasL) was involved in the tumor-specific CTL activity of these cells. The in vivo antitumor activity associated with this approach was abrogated by administration of neutralizing mAbs against TRAIL or FasL and was not observed in perforin-/-, IFN-gamma-/-, or FasL-/- mice. Transduction of the tumor cells with antiapoptotic protein cellular FLIP rendered the gene-modified cells resistant to TRAIL- or FasL-mediated apoptosis and to CTL killing activity in vitro. Furthermore, the combination therapeutic regimen was ineffective in an intracranial cellular FLIP-transduced MCA205 brain tumor model. These results suggest that the combination of intratumoral delivery of DC-IFN-alpha and peripheral immunization with cytokine-gene transduced tumor cells may be an effective therapy for brain tumors that are sensitive to apoptotic signaling pathways.
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MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Adjuvants, Immunologic/genetics
- Adoptive Transfer
- Animals
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Apoptosis/immunology
- Brain Neoplasms/immunology
- Brain Neoplasms/pathology
- Brain Neoplasms/prevention & control
- Cancer Vaccines/administration & dosage
- Cancer Vaccines/genetics
- Cancer Vaccines/immunology
- Cell Line, Tumor
- Cytokines/biosynthesis
- Cytokines/physiology
- Cytokines/therapeutic use
- Cytotoxicity, Immunologic
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Dendritic Cells/transplantation
- Glioma/immunology
- Glioma/pathology
- Glioma/prevention & control
- Injections, Intralesional
- Injections, Intraventricular
- Interferon-alpha/administration & dosage
- Interferon-alpha/genetics
- Interferon-alpha/metabolism
- Lymph Nodes/immunology
- Lymph Nodes/pathology
- Mice
- Mice, Inbred C3H
- Mice, Inbred C57BL
- Mice, Knockout
- Signal Transduction/immunology
- Transduction, Genetic
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Affiliation(s)
- Naruo Kuwashima
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, PA 15213, USA
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45
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den Boer AT, van Mierlo GJD, Fransen MF, Melief CJM, Offringa R, Toes REM. CD4+ T cells are able to promote tumor growth through inhibition of tumor-specific CD8+ T-cell responses in tumor-bearing hosts. Cancer Res 2005; 65:6984-9. [PMID: 16061684 DOI: 10.1158/0008-5472.can-04-3344] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Modulation of the immune response by established tumors may contribute to the limited success of therapeutic vaccination for the treatment of cancer compared with vaccination in a preventive setting. We analyzed the contribution of the CD4+ T-cell population to the induction or suppression of tumor-specific CD8+ T cells in a tumor model in which eradication of tumors crucially depends on CD8+ T cell-mediated immunity. Vaccine-mediated induction of protective antitumor immunity in the preventive setting (i.e., before tumor challenge) was CD4+ T cell dependent because depletion of this T-cell subset prevented CD8+ T-cell induction. In contrast, depletion of CD4+ cells in mice bearing established E1A+ tumors empowered the mice to raise strong CD8+ T-cell immunity capable of tumor eradication without the need for tumor-specific vaccination. Spontaneous eradication of tumors, which had initially grown out, was similarly observed in MHC class II-deficient mice, supporting the notion that the tumor-bearing mice harbor a class II MHC-restricted CD4+ T-cell subset capable of suppressing a tumor-specific CD8+ T-cell immune response. The deleterious effects of the presence of CD4+ T cells in tumor-bearing hosts could be overcome by CD40-triggering or injection of CpG. Together these results show that CD4+ T cells with a suppressive activity are rapidly induced following tumor development and that their suppressive effect can be overcome by agents that activate professional antigen-presenting cells. These observations are important for the development of immune interventions aiming at treatment of cancer.
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Affiliation(s)
- Annemieke Th den Boer
- Department of Immunohematology and Bloodtransfusion, Leiden University Medical Center, Leiden, the Netherlands
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Knutson KL, Disis ML. Tumor antigen-specific T helper cells in cancer immunity and immunotherapy. Cancer Immunol Immunother 2005; 54:721-8. [PMID: 16010587 PMCID: PMC11032889 DOI: 10.1007/s00262-004-0653-2] [Citation(s) in RCA: 488] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2004] [Accepted: 11/11/2004] [Indexed: 10/25/2022]
Abstract
Historically, cancer-directed immune-based therapies have focused on eliciting a cytotoxic T cell (CTL) response, primarily due to the fact that CTL can directly kill tumors. In addition, many putative tumor antigens are intracellular proteins, and CTL respond to peptides presented in the context of MHC class I which are most often derived from intracellular proteins. Recently, increasing importance is being given to the stimulation of a CD4+ T helper cell (Th) response in cancer immunotherapy. Th cells are central to the development of an immune response by activating antigen-specific effector cells and recruiting cells of the innate immune system such as macrophages and mast cells. Two predominant Th cell subtypes exist, Th1 and Th2. Th1 cells, characterized by secretion of IFN-gamma and TNF-alpha, are primarily responsible for activating and regulating the development and persistence of CTL. In addition, Th1 cells activate antigen-presenting cells (APC) and induce limited production of the type of antibodies that can enhance the uptake of infected cells or tumor cells into APC. Th2 cells favor a predominantly humoral response. Particularly important during Th differentiation is the cytokine environment at the site of antigen deposition or in the local lymph node. Th1 commitment relies on the local production of IL-12, and Th2 development is promoted by IL-4 in the absence of IL-12. Specifically modulating the Th1 cell response against a tumor antigen may lead to effective immune-based therapies. Th1 cells are already widely implicated in the tissue-specific destruction that occurs during the pathogenesis of autoimmune diseases, such as diabetes mellitus and multiple sclerosis. Th1 cells directly kill tumor cells via release of cytokines that activate death receptors on the tumor cell surface. We now know that cross-priming of the tumor-specific response by potent APC is a major mechanism of the developing endogenous immune response; therefore, even intracellular proteins can be presented in the context of MHC class II. Indeed, recent studies demonstrate the importance of cross-priming in eliciting CTL. Many vaccine strategies aim to stimulate the Th response specific for a tumor antigen. Early clinical trials have shown that focus on the Th effector arm of the immune system can result in significant levels of both antigen-specific Th cells and CTL, the generation of long lasting immunity, and a Th1 phenotype resulting in the development of epitope spreading.
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Affiliation(s)
- K L Knutson
- Department of Immunology, Mayo Clinic College of Medicine, 342C Guggenheim Bldg., 200 First St. SW, Rochester, MN 55906, USA.
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Yu P, Lee Y, Liu W, Krausz T, Chong A, Schreiber H, Fu YX. Intratumor depletion of CD4+ cells unmasks tumor immunogenicity leading to the rejection of late-stage tumors. ACTA ACUST UNITED AC 2005; 201:779-91. [PMID: 15753211 PMCID: PMC2212829 DOI: 10.1084/jem.20041684] [Citation(s) in RCA: 334] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Tumor environment can be critical for preventing the immunological destruction of antigenic tumors. We have observed a selective accumulation of CD4(+)CD25(+) T cells inside tumors. In a murine fibrosarcoma L(d)-expressing Ag104, these cells made up the majority of tumor-infiltrating lymphocytes at the late stage of tumor progression, and their depletion during the effector phase, rather than priming phase, successfully enhanced antitumor immunity. We show here that CD4(+)CD25(+) T cells suppressed the proliferation and interferon-gamma production of CD8(+) T cells in vivo at the local tumor site. Blockade of the effects of IL-10 and TGF-beta partially reversed the suppression imposed by the CD4(+) cells. Furthermore, local depletion of CD4(+) cells inside the tumor resulted in a change of cytokine milieu and led to the eradication of well-established highly aggressive tumors and the development of long-term antitumor memory. Therefore, CD4(+)CD25(+) T cells maintained an environment in the tumor that concealed the immunogenicity of tumor cells to permit progressive growth of antigenic tumors. Our study illustrates that the suppression of antitumor immunity by regulatory T cells occurs predominantly at the tumor site, and that local reversal of suppression, even at a late stage of tumor development, can be an effective treatment for well-established cancers.
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Affiliation(s)
- Ping Yu
- The Committee on Immunology, University of Chicago, Chicago, IL 60637, USA.
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Liu Y, Poon RT, Hughes J, Feng X, Yu WC, Fan ST. Chemokine receptors support infiltration of lymphocyte subpopulations in human hepatocellular carcinoma. Clin Immunol 2005; 114:174-82. [PMID: 15639651 DOI: 10.1016/j.clim.2004.10.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2004] [Accepted: 10/12/2004] [Indexed: 02/07/2023]
Abstract
The presence of lymphocyte infiltration in human hepatocellular carcinoma (HCC) is evident. However, immune regulation of lymphocytes in HCC is poorly characterized. In this study, we investigated the chemokine receptor and memory, activation and adhesion markers of major leukocyte subsets present in tumor, nontumor liver, and peripheral blood. T cells from both tumor and peritumor liver displayed high levels of activation and homing markers. CCR5 and CXCR3 were expressed in a large proportion of CD45RO+, CD69+, CD27+, and CD11a+ T cells from tumor compared with T cells from circulation. The proportion of CCR6- and CXCR3-expressing natural killer cells (NK) and natural killer T cells (NKT) was significantly increased in the tumor and nontumor liver compared with peripheral blood. This study demonstrates the role of chemokine receptors in the recruitment of specific lymphocyte subsets to the liver in HCC and suggests the importance of these receptors in regulation of immune defense against HCC.
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Affiliation(s)
- Yuqing Liu
- Department of Surgery, The University of Hong Kong, Centre for the Study of Liver Disease, L9-57, Faculty of Medicine Building, 21 Sassoon Road, Pokfulam, Hong Kong, China.
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Qin Y, Wang XH, Cui HL, Cheung YK, Hu MH, Zhu SG, Xie Y. Human papillomavirus type 16 E7 peptide(38-61) linked with an immunoglobulin G fragment provides protective immunity in mice. Gynecol Oncol 2005; 96:475-83. [PMID: 15661238 DOI: 10.1016/j.ygyno.2004.10.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2004] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To explore whether the recombinant protein (Human papillomavirus (HPV) type16 E7 peptide(38-61) linked with an immunoglobulin G fragment) will generate protective immunity in mouse model. METHODS In our study, we combined the HPV16 E7 peptide(38-61) with a murine IgG heavy chain constant region to construct a chimeric protein compound, which was highly expressed as inclusion bodies in a bacterial expression system with Escherichia coli. The purified chimeric protein was injected into C57BL/6 mice and the efficiency of the chimeric vaccine candidate was evaluated by antibody response assay, T cell proliferation assay, CTL assay, tumor challenge assay and therapeutic experiment. RESULTS The chimeric vaccine candidate was able to induce anti-HPV antibodies as well as to elicit HPV16 E7-specific CTLs and T cell proliferation in a pre-clinical mouse model. It was also able to effectively protect mice against the challenge of HPV16-positive tumor cells, and to eradicate HPV16-expressing tumors in mice. CONCLUSIONS The chimeric protein vaccine can induce E7-specific immune responses and protect mice against challenge of HPV16-positive tumor, even eradicate developed tumor. The results indicated a possibility to use the chimeric protein vaccine to protect human against HPV infection.
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Affiliation(s)
- Y Qin
- College of Life Science, Peking University, Beijing, PR China
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Liu YQ, Poon RT, Hughes J, Li QY, Yu WC, Fan ST. Desensitization of T lymphocyte function by CXCR3 ligands in human hepatocellular carcinoma. World J Gastroenterol 2005; 11:164-70. [PMID: 15633209 PMCID: PMC4205395 DOI: 10.3748/wjg.v11.i2.164] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: Despite the presence of lymphocyte infiltration, human hepatocellular carcinoma (HCC) is typically a rapidly progressive disease. The mechanism of regulation of lymphocyte migration is poorly understood. In this study, we investigated various factors regulating T cell migration in HCC patients. We examined serum CXC chemokine levels in HCC patients and demonstrated the production of CXC chemokines by HCC cell lines. We determined the effect of both HCC patient serum and tumor cell conditioned supernatant upon lymphocyte expression of chemokine receptor CXCR3 as well as lymphocyte migration. Lastly, we examined the chemotactic responses of lymphocytes derived from HCC patients.
METHODS: The serum chemokines IP-10 (CXCL10) and Mig (CXCL9) levels were measured by cytometric bead array (CBA) and the tumor tissue IP-10 concentration was measured by ELISA. The surface expression of CXCR3 on lymphocytes was determined by flow cytometry. The migratory function of lymphocytes to the corresponding chemokines was assessed using an in vitro chemotactic assay. Phosphorylation of extracellular signal-regulated kinase (ERK) was determined by Western blot analysis.
RESULTS: Increased levels of IP-10 and Mig were detected in HCC patient serum and culture supernatants of HCC cell lines. The IP-10 concentration in the tumor was significantly higher than that in the non-involved adjacent liver tissues. HCC cell lines secreted functional chemokines that induced a CXCR3-specific chemotactic response of lymphocytes. Furthermore, tumor-cell-derived chemokines induced initial rapid phosphorylation of lymphocyte ERK followed by later inhibition of ERK phosphorylation. The culture of normal lymphocytes with HCC cell line supernatants or medium containing serum from HCC patients resulted in a significant reduction in the proportion of lymphocytes exhibiting surface expression of CXCR3. The reduction in T cell expression of CXCR3 resulted in reduced migration toward the ligand IP-10, and both CD4+ and CD8+ T cells from HCC patients exhibited diminished chemotactic responses to IP-10 in vitro compared to T cells from healthy control subjects.
CONCLUSION: This study demonstrates functional desensitization of the chemokine receptor CXCR3 in lymphocytes from HCC patients by CXCR3 ligands secreted by tumor cells. This may cause lymphocyte dysfunction and subsequently impaired immune defense against the tumor.
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Affiliation(s)
- Yu-Qing Liu
- Centre for the Study of Liver Disease and Department of Surgery, The University of Hong Kong, Pokfulam, Hong Kong, China
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