51
|
Wang X, Lang M, Zhao T, Feng X, Zheng C, Huang C, Hao J, Dong J, Luo L, Li X, Lan C, Yu W, Yu M, Yang S, Ren H. Cancer-FOXP3 directly activated CCL5 to recruit FOXP3 +Treg cells in pancreatic ductal adenocarcinoma. Oncogene 2017; 36:3048-3058. [PMID: 27991933 PMCID: PMC5454319 DOI: 10.1038/onc.2016.458] [Citation(s) in RCA: 156] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 10/18/2016] [Accepted: 10/31/2016] [Indexed: 12/15/2022]
Abstract
Forkheadbox protein 3 (FOXP3), initially identified as a key transcription factor for regulatory T cells (Treg cells), was also expressed in many tumors including pancreatic ductal adenocarcinoma (PDAC). However, its role in PDAC progression remains elusive. In this study, we utilized 120 PDAC tissues after radical resection to detect cancer-FOXP3 and Treg cells by immunohistochemistry and evaluated clinical and pathological features of these patients. Cancer-FOXP3 was positively correlated with Treg cells accumulation in tumor tissues derived from PDAC patients. In addition, high cancer-FOXP3 expression was associated with increased tumor volumes and poor prognosis in PDAC especially combined with high levels of Treg cells. Overexpression of cancer-FOXP3 promoted the tumor growth in immunocompetent syngeneic mice but not in immunocompromised or Treg cell-depleted mice. Furthermore, CCL5 was directly trans-activated by cancer-FOXP3 and promoted the recruitment of Treg cells from peripheral blood to the tumor site in vitro and in vivo. This finding has been further reinforced by the evidence that Treg cells recruitment by cancer-FOXP3 was impaired by neutralization of CCL5, thereby inhibiting the growth of PDAC. In conclusion, cancer-FOXP3 serves as a prognostic biomarker and a crucial determinant of immunosuppressive microenvironment via recruiting Treg cells by directly trans-activating CCL5. Therefore, cancer-FOXP3 could be used to select patients with better response to CCL5/CCR5 blockade immunotherapy.
Collapse
MESH Headings
- Adult
- Aged
- Animals
- Carcinoma, Pancreatic Ductal/genetics
- Carcinoma, Pancreatic Ductal/immunology
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Cells, Cultured
- Chemokine CCL5/metabolism
- Chemokine CCL5/pharmacology
- Chemotaxis, Leukocyte/drug effects
- Chemotaxis, Leukocyte/genetics
- Female
- Forkhead Transcription Factors/genetics
- Forkhead Transcription Factors/physiology
- Humans
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/genetics
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Nude
- Mice, SCID
- Middle Aged
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/immunology
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Tumor Microenvironment/genetics
Collapse
Affiliation(s)
- X Wang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - M Lang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - T Zhao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - X Feng
- The State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - C Zheng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - C Huang
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - J Hao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - J Dong
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - L Luo
- Department of Gynaecology, Hepingqu Gynaecology and Obsterics Hospital, Tianjin, China
| | - X Li
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - C Lan
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - W Yu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| | - M Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Tianjin Medical University, Tianjin, China
| | - S Yang
- Penn State College of Medicine, Hershey, PA, USA
| | - H Ren
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin, China
| |
Collapse
|
52
|
Aipire A, Li J, Yuan P, He J, Hu Y, Liu L, Feng X, Li Y, Zhang F, Yang J, Li J. Glycyrrhiza uralensis water extract enhances dendritic cell maturation and antitumor efficacy of HPV dendritic cell-based vaccine. Sci Rep 2017; 7:43796. [PMID: 28272545 PMCID: PMC5341557 DOI: 10.1038/srep43796] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/27/2017] [Indexed: 12/13/2022] Open
Abstract
Licorice has been used as herbal medicine and natural sweetener. Here, we prepared Glycyrrhiza uralensis water extract (GUWE) and investigated the effect of GUWE on the maturation and function of dendritic cells (DCs) and its adjuvant effect on DC-based vaccine. We observed that GUWE dose-dependently promoted DC maturation and cytokine secretion through TLR4 signaling pathway. The capacity of DC to stimulate allogenic splenocyte proliferation was also enhanced by GUWE treatment. Compared with control group, GUWE treated DCs pulsed with human papillomavirus (HPV)-16 E6/E7 peptides significantly inhibited the tumor growth in both early and late therapeutic groups. In early therapeutic group, the frequencies of induced regulatory T cells (iTregs: CD4+CD25−Fopx3+) and CD4+ and CD8+ T cells were significantly decreased and increased, respectively. HPV-16-specific CD8+ T cell responses were significantly induced and negatively correlated with iTreg frequencies and tumor weight. These results indicated the immunoregulatory activities of licorice.
Collapse
Affiliation(s)
- Adila Aipire
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jinyu Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Pengfei Yuan
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jiang He
- Key laboratory of Xinjiang Uighur Medicine, Xinjiang Institute of Materia Medica, 140 Xinhua South Road, Urumqi 830004, China
| | - Yelang Hu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Lu Liu
- XinJiang DingJu Biotech CO., LTD, 181 Xicai Road, Urumqi 830000, China
| | - Xiaoli Feng
- XinJiang DingJu Biotech CO., LTD, 181 Xicai Road, Urumqi 830000, China
| | - Yijie Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Fuchun Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jianhua Yang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China.,Texas Children's Cancer Center, Department of Pediatrics, Dan L. Duncan Cancer Center, Baylor College of Medicine, TX 77030, USA
| | - Jinyao Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| |
Collapse
|
53
|
Prognostic value of circulating regulatory T cell subsets in untreated non-small cell lung cancer patients. Sci Rep 2016; 6:39247. [PMID: 27976733 PMCID: PMC5157012 DOI: 10.1038/srep39247] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/21/2016] [Indexed: 12/22/2022] Open
Abstract
The role of the different circulating regulatory T-cells (Treg) subsets, as well as their correlation with clinical outcome of non-small cell lung cancer (NSCLC) patients is poorly understood. Peripheral blood from 156 stage III/IV chemotherapy-naive NSCLC patients and 31 healthy donors (HD) was analyzed with flow cytometry for the presence and functionality of CD4+ Treg subsets (naive, effector and terminal effector). Their frequencies were correlated with the clinical outcome. All CD4+ Treg subsets exhibited highly suppressive activity by TGF-β and IL-10 production. The percentages of naive Treg were found elevated in NSCLC patients compared to HD and were associated with poor clinical outcome, whereas the percentage of terminal effector Treg was lower compared to HD and higher levels were correlated with improved clinical response. At baseline, normal levels of naive and effector Treg were associated with longer overall survival (OS) compared to high levels, while the high frequency of the terminal effector Treg was correlated with longer Progression-Free Survival and OS. It is demonstrated, for first time, that particular CD4+ Treg subtypes are elevated in NSCLC patients and their levels are associated to the clinical outcome. The blocking of their migration to the tumor site may be an effective therapeutic strategy.
Collapse
|
54
|
Regulatory T-cells promote hepatitis B virus infection and hepatocellular carcinoma progression. Chronic Dis Transl Med 2016; 2:67-80. [PMID: 29063027 PMCID: PMC5643754 DOI: 10.1016/j.cdtm.2016.09.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Indexed: 02/08/2023] Open
Abstract
Regulatory T-cells (Tregs), known for their immune suppressive function, have been reported in higher numbers, with activated phenotypes and greater potency, in hepatitis B virus (HBV)-related liver diseases than in normal conditions. The numbers, phenotypes, and function of intrahepatic and/or tumor-infiltrating Tregs in HBV-related liver diseases also differ from those of Tregs in the peripheral blood. By inhibiting the function of effector T-cells (Teffs), Tregs play a substantial role in the formation and maintenance of the liver's suppressive microenvironment, which might account for the progression of HBV-related hepatitis and hepatocellular carcinoma (HCC). In acute hepatitis B virus infection, Tregs can safeguard the liver from damage at the cost of prolonged antiviral processes, which results in chronic HBV infection in the liver. Furthermore, Tregs play a role in the development of cirrhosis, the transformation of cirrhosis to HCC, and the progression and metastasis of HCC. Higher levels of Tregs in the peripheral blood and/or tumor sites signify a poorer prognosis in HBV-related liver conditions, and observational data from mouse models and human patients support the theory that depleting Tregs may be therapeutic in HBV-related liver diseases by inducing antiviral and antitumor immunity.
Collapse
|
55
|
Hurez V, Padrón ÁS, Svatek RS, Curiel TJ. Considerations for successful cancer immunotherapy in aged hosts. Clin Exp Immunol 2016; 187:53-63. [PMID: 27690272 DOI: 10.1111/cei.12875] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2016] [Indexed: 12/22/2022] Open
Abstract
Immunotherapy is now experiencing unprecedented successes in treating various cancers based on new understandings of cancer immunopathogenesis. Nonetheless, although ageing is the biggest risk factor for cancer, the majority of cancer immunotherapy preclinical studies are conducted in young hosts. This review will explore age-related changes in immunity as they relate to cancer immune surveillance, immunopathogenesis and responses to immunotherapy. Although it is recognized that declining T cell function with age poses a great challenge to developing effective age-related cancer immunotherapies, examples of successful approaches to overcome this hurdle have been developed. Further, it is now recognized that immune functions do not simply decline with age, but rather change in ways than can be detrimental. For example, with age, specific immune cell populations with detrimental functions can become predominant (such as cells producing proinflammatory cytokines), suppressive cells can become more numerous or more suppressive (such as myeloid-derived suppressor cells), drugs can affect aged immune cells distinctly and the aged microenvironment is becoming recognized as a significant barrier to address. Key developments in these and other areas will be surveyed as they relate to cancer immunotherapy in aged hosts, and areas in need of more study will be assessed with some speculations for the future. We propose the term 'age-related immune dysfunction' (ARID) as best representative of age-associated changes in immunity.
Collapse
Affiliation(s)
- V Hurez
- Department of Medicine, University of Texas Health Science Center, San Antonio, TX, USA
| | - Á S Padrón
- Department of Medicine, University of Texas Health Science Center, San Antonio, TX, USA
| | - R S Svatek
- Department of Urology, University of Texas Health Science Center, San Antonio, TX, USA.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, TX, USA
| | - T J Curiel
- Department of Medicine, University of Texas Health Science Center, San Antonio, TX, USA.,Cancer Therapy and Research Center, University of Texas Health Science Center, San Antonio, TX, USA.,Department of Microbiology and Immunology, University of Texas Health Science Center, San Antonio, TX, USA.,The Barshop Institute for Ageing and Longevity Studies, University of Texas Health Science Center, San Antonio, TX, USA
| |
Collapse
|
56
|
Fabre J, Giustiniani J, Garbar C, Antonicelli F, Merrouche Y, Bensussan A, Bagot M, Al-Dacak R. Targeting the Tumor Microenvironment: The Protumor Effects of IL-17 Related to Cancer Type. Int J Mol Sci 2016; 17:ijms17091433. [PMID: 27589729 PMCID: PMC5037712 DOI: 10.3390/ijms17091433] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/10/2016] [Accepted: 08/24/2016] [Indexed: 12/25/2022] Open
Abstract
The inflammatory process contributes to immune tolerance as well as to tumor progression and metastasis. By releasing extracellular signals, cancerous cells constantly shape their surrounding microenvironment through their interactions with infiltrating immune cells, stromal cells and components of extracellular matrix. Recently, the pro-inflammatory interleukin 17 (IL-17)-producing T helper lymphocytes, the Th17 cells, and the IL-17/IL-17 receptor (IL-17R) axis gained special attention. The IL-17 family comprises at least six members, IL-17A, IL-17B, IL-17C, IL-17D, IL-17E (also called IL-25), and IL-17F. Secreted as disulfide-linked homo- or heterodimers, the IL-17 bind to the IL-17R, a type I cell surface receptor, of which there are five variants, IL-17RA to IL-17RE. This review focuses on the current advances identifying the promoting role of IL-17 in carcinogenesis, tumor metastasis and resistance to chemotherapy of diverse solid cancers. While underscoring the IL-17/IL-17R axis as promising immunotherapeutic target in the context of cancer managing, this knowledge calls upon further in vitro and in vivo studies that would allow the development and implementation of novel strategies to combat tumors.
Collapse
Affiliation(s)
- Joseph Fabre
- Institut Jean Godinot, Unicancer, 1 rue du Général Koenig, F-51726 Reims, France.
- Université Reims-Champagne-Ardenne, DERM-I-C, EA7319, 51 rue Cognacq-Jay, F-51095 Reims, France.
- Centre Hospitalo-Universitaire Henri Mondor, Service de Radiothérapie, 51 Avenue du Maréchal de Lattre de Tassigny, F-94010 Créteil, France.
| | - Jerome Giustiniani
- Institut Jean Godinot, Unicancer, 1 rue du Général Koenig, F-51726 Reims, France.
- Université Reims-Champagne-Ardenne, DERM-I-C, EA7319, 51 rue Cognacq-Jay, F-51095 Reims, France.
| | - Christian Garbar
- Institut Jean Godinot, Unicancer, 1 rue du Général Koenig, F-51726 Reims, France.
- Université Reims-Champagne-Ardenne, DERM-I-C, EA7319, 51 rue Cognacq-Jay, F-51095 Reims, France.
| | - Frank Antonicelli
- Université Reims-Champagne-Ardenne, DERM-I-C, EA7319, 51 rue Cognacq-Jay, F-51095 Reims, France.
| | - Yacine Merrouche
- Institut Jean Godinot, Unicancer, 1 rue du Général Koenig, F-51726 Reims, France.
- Université Reims-Champagne-Ardenne, DERM-I-C, EA7319, 51 rue Cognacq-Jay, F-51095 Reims, France.
| | - Armand Bensussan
- Institut National de la Santé et de la Recherche Médicale (INSERM) U976, Hôpital Saint Louis, F-75010 Paris, France.
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Immunologie Dermatologie & Oncologie, UMR-S 976, F-75475 Paris, France.
- OREGA Biotech, 69130 Ecully, France.
| | - Martine Bagot
- Institut National de la Santé et de la Recherche Médicale (INSERM) U976, Hôpital Saint Louis, F-75010 Paris, France.
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Immunologie Dermatologie & Oncologie, UMR-S 976, F-75475 Paris, France.
| | - Reem Al-Dacak
- Université Paris Diderot, Sorbonne Paris Cité, Laboratoire Immunologie Dermatologie & Oncologie, UMR-S 976, F-75475 Paris, France.
| |
Collapse
|
57
|
Shou J, Zhang Z, Lai Y, Chen Z, Huang J. Worse outcome in breast cancer with higher tumor-infiltrating FOXP3+ Tregs : a systematic review and meta-analysis. BMC Cancer 2016; 16:687. [PMID: 27566250 PMCID: PMC5002190 DOI: 10.1186/s12885-016-2732-0] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/01/2016] [Indexed: 12/23/2022] Open
Abstract
Background Forkhead box P3(FOXP3) is known as the optimum maker for regulatory T cells(Tregs), which are conventionally thought to induce immune tolerance to disturb the antitumor immunity. However, the research on the prognostic significance of tumor-infiltrating FOXP3+ Tregs in breast cancer is still limited and the results are controversial. Methods We searched for studies in PubMed, EMBASE and Web of Science prior to January 2015. The correlation between FOXP3+ tumor-infiltrating lymphocytes(TILs) and breast cancer prognosis was analyzed. The meta-analysis was performed using STATA 11.0. Pooled hazard ratios (HRs) with 95 % confidence intervals (CIs) were used to estimate the degree of the association between FOXP3+ TILs and prognosis of breast cancers, while relative ratios (RRs) were used to evaluate the relationship between FOXP3+ TILs and clinicopathological features of breast cancers. Result A total of 15 studies comprising 8666 breast cancer patients met the inclusion criteria. Our results showed that higher FOXP3+ TILs level was significantly associated with poor prognosis in terms of overall survival (OS) (pooled HR:1.60, 95 % CI:1.06–2.42; P < 0.05). We found that breast cancer with higher FOXP3+ TILs level was positively correlated with c-erbB-2 positive status (pooled RR:1.52, 95 % CI:1.32–1.75; P < 0.05), lymph node positive status(pooled RR:1.17, 95 % CI:1.04–1.32; P < 0.05) while there was a negative association with ER positive status(pooled RR:0.65, 95 % CI:0.56–0.76; P < 0.05) and PR positive status(pooled RR:0.66, 95 % CI:0.51–0.87; P < 0.05). Conclusion The present results of meta-analysis showed that higher FOXP3+ TILs level in patients with breast cancer led to poor overall survival (OS) and was significantly associated with c-erbB-2 status, lymph node status, ER status and PR status. FOXP3+ TILs level is a promising prognostic factor in breast cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2732-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jiafeng Shou
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in MedicalSciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 31009, China
| | - Zhigang Zhang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in MedicalSciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 31009, China
| | - Yucheng Lai
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in MedicalSciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 31009, China
| | - Zhigang Chen
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in MedicalSciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 31009, China.,Department of Oncology, Second Affiliated Hospital, ZhejiangUniversity School of Medicine, Hangzhou, 310009, China
| | - Jian Huang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in MedicalSciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 31009, China. .,Department of Oncology, Second Affiliated Hospital, ZhejiangUniversity School of Medicine, Hangzhou, 310009, China.
| |
Collapse
|
58
|
Kryczek I, Wang L, Wu K, Li W, Zhao E, Cui T, Wei S, Liu Y, Wang Y, Vatan L, Szeliga W, Greenson JK, Roliński J, Zgodzinski W, Huang E, Tao K, Wang G, Zou W. Inflammatory regulatory T cells in the microenvironments of ulcerative colitis and colon carcinoma. Oncoimmunology 2016; 5:e1105430. [PMID: 27622054 DOI: 10.1080/2162402x.2015.1105430] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/29/2015] [Accepted: 10/03/2015] [Indexed: 12/19/2022] Open
Abstract
Foxp3(+)CD4(+) regulatory T (Treg) cells are thought to express negligible levels of effector cytokines, and inhibit immune responses and inflammation. Here, we have identified a population of IL-8(+)Foxp3(+)CD4(+) T cells in human peripheral blood, which is selectively increased in the microenvironments of ulcerative colitis and colon carcinoma. Phenotypically, this population is minimally overlapping with IL-17(+)Foxp3(+)CD4(+) T cells, and is different from IL-8(-)Foxp3(+)CD4(+) T cells in the same microenvironment. 40-60% of IL-8(+)Foxp3(+)CD4(+) T cells exhibit naive phenotype and express CD127, whereas IL-8(-)Foxp3(+)CD4(+) cells are basically memory T cells and express minimal CD127. The levels of CXCR5 expression are higher in IL-8(+)Foxp3(+) cells than in IL-8(-)Foxp3(+) cells. IL-2 and TGFβ induce IL-8(+)Foxp3(+) T cells. Exogenous Foxp3 expression promotes IL-8(+)Foxp3(+) T cells and inhibits effector cytokine IFNγ and IL-2 expression. Furthermore, Foxp3 binds to IL-8 proximal promoter and increases its activity. Functionally, IL-8(+)Foxp3(+) T cells inhibit T cell proliferation and effector cytokine production, but stimulate inflammatory cytokine production in the colon tissues, and promote neutrophil trafficking through IL-8. Thus, IL-8(+)Foxp3(+) cells may be an "inflammatory" Treg subset, and possess inflammatory and immunosuppressive dual biological activities. Given their dual roles and localization, these cells may be in a unique position to support tumor initiation and development in human chronic inflammatory environment.
Collapse
Affiliation(s)
- Ilona Kryczek
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA; Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Lin Wang
- Departments of Clinical Laboratory and Surgery, and Medical Research Center, Union Hospital, Huazhong University of Science and Technology School of Medicine , Wuhan, China
| | - Ke Wu
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA; Departments of Clinical Laboratory and Surgery, and Medical Research Center, Union Hospital, Huazhong University of Science and Technology School of Medicine, Wuhan, China
| | - Wei Li
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA; Departments of Clinical Laboratory and Surgery, and Medical Research Center, Union Hospital, Huazhong University of Science and Technology School of Medicine, Wuhan, China
| | - Ende Zhao
- Department of Surgery, University of Michigan, Ann Arbor, MI, USA; Departments of Clinical Laboratory and Surgery, and Medical Research Center, Union Hospital, Huazhong University of Science and Technology School of Medicine, Wuhan, China
| | - Tracy Cui
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| | - Shuang Wei
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| | - Yan Liu
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| | - Yin Wang
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| | - Linda Vatan
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| | - Wojciech Szeliga
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| | - Joel K Greenson
- Department of Pathology, University of Michigan , Ann Arbor, MI, USA
| | - Jacek Roliński
- Department of Clinical Immunology, Medical University of Lublin, Lublin, Poland; 2nd Department of General Surgery, Medical University of Lublin, Lublin, Poland
| | - Witold Zgodzinski
- 2nd Department of General Surgery, Medical University of Lublin , Lublin, Poland
| | - Emina Huang
- Department of Colorectal Surgery, Cleveland Clinic, Western Reserve University , Cleveland, Ohio, USA
| | - Kaixiong Tao
- Departments of Clinical Laboratory and Surgery, and Medical Research Center, Union Hospital, Huazhong University of Science and Technology School of Medicine , Wuhan, China
| | - Guobin Wang
- Departments of Clinical Laboratory and Surgery, and Medical Research Center, Union Hospital, Huazhong University of Science and Technology School of Medicine , Wuhan, China
| | - Weiping Zou
- Department of Surgery, University of Michigan , Ann Arbor, MI, USA
| |
Collapse
|
59
|
Systematic evaluation of multiple immune markers reveals prognostic factors in ovarian cancer. Gynecol Oncol 2016; 143:120-127. [PMID: 27470997 DOI: 10.1016/j.ygyno.2016.07.105] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 07/15/2016] [Accepted: 07/17/2016] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Epithelial ovarian cancer (EOC) is the most lethal gynecologic malignancy. Several factors prognostic for survival have been identified including the presence of certain lymphocyte markers. Tumor-infiltrating lymphocytes (TILs), particularly cytotoxic CD8+ TILs, have been shown to be most favorable for prognosis in ovarian cancer, although other immune cells including CD3+ T-cells, CD4+ T-cells, and B-cells have also demonstrated survival benefits. Although data for these markers exists, results are not uniform in the literature. Furthermore, other immunomodulatory protein markers that have been targeted in effective immunotherapies for other malignancies may prove to be favorable in ovarian cancer. METHODS Here, extensive immunohistochemical analysis was performed on a tissue microarray, containing 135 ovarian cancer cases obtained during tumor debulking detecting 15 key lymphocyte markers such as CD3, CD4, and CD20, as well as activation and immunomodulatory molecules such as TIA-1 and PD-L1. Samples were analyzed for expression of markers in tumor islets or stroma and expression was correlated with overall survival, histotype, stage, age, debulking grade, and response to chemotherapy. RESULTS Our results confirm the presence of CD8+ and CD20+ TILs is positively correlated with overall survival, with further multivariate modeling replicating that prognostic benefit. Additional markers of significant prognostic importance, including TIA-1, CD103 and HLA Class-II were also revealed. CONCLUSIONS Our results further support the vital role of cytotoxic T-cells in defense against ovarian cancer and reveals new questions as to the role of B-cells in tumor control as well as the potential benefits of immunotherapy involving other immune modulating molecules.
Collapse
|
60
|
Le KS, Thibult ML, Just-Landi S, Pastor S, Gondois-Rey F, Granjeaud S, Broussais F, Bouabdallah R, Colisson R, Caux C, Ménétrier-Caux C, Leroux D, Xerri L, Olive D. Follicular B Lymphomas Generate Regulatory T Cells via the ICOS/ICOSL Pathway and Are Susceptible to Treatment by Anti-ICOS/ICOSL Therapy. Cancer Res 2016; 76:4648-60. [PMID: 27246829 DOI: 10.1158/0008-5472.can-15-0589] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/09/2016] [Indexed: 11/16/2022]
Abstract
The prognosis of follicular lymphoma (FL) patients is suspected to be influenced by tumor-infiltrating regulatory T cells (Treg). The mechanism of Treg enrichment in FL and their impact on malignant FL B cells remains to be elucidated. We analyzed 46 fresh lymph node biopsy samples, including FL (n = 20), diffuse large B-cell lymphoma (n = 10), classical Hodgkin lymphoma (n = 9), and reactive lymphadenitis (n = 7). Using multicolor flow cytometry and cell sorting, we observed an accumulation of CD25(high)CD127(low/neg) Tregs in FL tissues. These Tregs comprised activated ICOS(+) Tregs that were able to suppress not only conventional T cells, but also FL B cells. These FL B cells were able to express ICOSL in vitro and to generate CD25(high)FoxP3(high) Tregs expressing ICOS. Treg generation was associated with ICOS/ICOSL engagement and was abrogated by antagonist anti-ICOS and anti-ICOSL antibodies. Interactions between Tregs and FL B cells resulted in ICOSL downregulation on FL B cells. Our results highlight a key role for Tregs in FL pathogenesis and suggest that targeting the ICOS/ICOSL pathway may be a promising immunotherapy for FL treatment. Cancer Res; 76(16); 4648-60. ©2016 AACR.
Collapse
Affiliation(s)
- Kieu-Suong Le
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France. Aix Marseille Université, Marseille, France
| | - Marie-Laure Thibult
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France. Institut Paoli - Calmettes, Marseille, France
| | | | - Sonia Pastor
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France
| | - Françoise Gondois-Rey
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France
| | - Samuel Granjeaud
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France
| | | | | | - Renaud Colisson
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052/CNRS 5286, Lyon, France
| | - Christophe Caux
- Centre de Recherche en Cancérologie de Lyon, Inserm U1052/CNRS 5286, Lyon, France
| | | | | | - Luc Xerri
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France. Aix Marseille Université, Marseille, France. Institut Paoli - Calmettes, Marseille, France
| | - Daniel Olive
- Centre de recherche en Cancérologie de Marseille, Inserm U1068/CNRS U7258, Marseille, France. Aix Marseille Université, Marseille, France. Institut Paoli - Calmettes, Marseille, France.
| |
Collapse
|
61
|
Li J, Li J, Aipire A, Luo J, Yuan P, Zhang F. The combination of Pleurotus ferulae water extract and CpG-ODN enhances the immune responses and antitumor efficacy of HPV peptides pulsed dendritic cell-based vaccine. Vaccine 2016; 34:3568-75. [PMID: 27211038 DOI: 10.1016/j.vaccine.2016.05.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 04/30/2016] [Accepted: 05/09/2016] [Indexed: 02/07/2023]
Abstract
Our previous study reported that the combination of Pleurotus ferulae water extract (PFWE) and CpG (PFWE+CpG) enhanced the maturation and function of dendritic cells (DCs). Here, we investigated the effects of PFWE+CpG on the immune responses and antitumor efficacy of DC-based vaccine. We observed that all of HPV E6 and E7 peptides pulsed DCs (HPV-immature DCs, HPV+PFWE-, +CpG- or +PFWE+CpG-DCs) induced antigen-specific CD8(+) T cell responses and HPV+PFWE+CpG-DCs induced highest level of CD8(+) T cell responses. The antitumor efficacy of HPV-DCs vaccines was evaluated in TC-1 tumor mouse model. The early therapeutic study showed that HPV+PFWE-, +CpG- and +PFWE+CpG-DCs greatly inhibited tumor growth. Moreover, HPV+PFWE+CpG-DCs controlled tumor growth at a faster rate compared to other groups. These three groups induced HPV-specific CD8(+) T cell responses and significantly decreased the frequencies of induced regulatory T cells (iTregs: CD4(+)CD25(-)Fopx3(+)). However, only HPV+PFWE+CpG-DCs significantly decreased the frequency of natural Tregs (nTregs: CD4(+)CD25(+)Fopx3(+)). Furthermore, HPV+PFWE+CpG-DCs also significantly inhibited tumor growth in the late therapeutic study. The results showed that PFWE+CpG enhanced the immune responses and antitumor efficacy of DC-based vaccine, suggesting that PFWE+CpG might be the potential candidate for the generation of clinical-grade mature DCs.
Collapse
Affiliation(s)
- Jinyu Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jinyao Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China.
| | - Adila Aipire
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - JiaoJiao Luo
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Pengfei Yuan
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Fuchun Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830046, China
| |
Collapse
|
62
|
Xia XW, Li X, Liu YM, Liang B, Zheng CS, Feng GS, Liang HM. Effect of interleukin 12 gene therapy on microvessel density and microenvironment in a rabbit model of VX2 liver cancer. Shijie Huaren Xiaohua Zazhi 2016; 24:97-103. [DOI: 10.11569/wcjd.v24.i1.97] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the effect of interleukin-12 (IL-12) gene therapy on microvessel density and microenvironment in a post-chemoembolization VX2 liver cancer model, and to investigate its anti-tumor mechanism.
METHODS: Rabbits with VX2 hepatic tumors were randomized into 4 groups, with eight rabbits in each group. Interventional procedure protocols were performed as follows: 0.9% saline solution (group 1, control), transcatheter arterial chemoembolization alone (group 2, lipiodol + mitomycin), intra-arterial IL-12 gene infusion (group 3, IL-12 gene therapy alone), and intra-arterial IL-12 gene infusion in combination with chemoembolization (group 4, IL-12 plus chemoembolization). Fourteen days after therapy, tumor tissues of the sacrificed animals were explanted for immunohistochemistry to evaluate microvessel density, effector T cells (CD3+, CD4+, and CD8+) and regulatory T cells (FoxP3+).
RESULTS: The microvessel density and FoxP3+ T cells in group 2 were significantly higher than those in group 1, but the differences in CD3+, CD4+, and CD8+ T cells between the two groups were not significant. The microvessel density in gene therapy groups (groups 3 and 4) were significantly lower, and CD3+, CD4+, and CD8+ T cells in these two groups were significantly higher than those in groups 1 and 2. The differences in CD3+, CD4+, and CD8+ T cells between the two gene therapy groups (groups 3 and 4) were not significant. The difference in FoxP3+ T cells was not significant between before and after IL-12 gene therapy. The differences in the level of FoxP3 were not significant between groups 3 and 1, as well as between groups 4 and 2.
CONCLUSION: IL-12 gene therapy can inhibit angiogenesis and induce effector T cell (CD3+, CD4+, and CD8+) infiltration in the VX2 liver cancer model, but the efficacy appears to be limited by the regulatory T cells (FoxP3+) existing in the tumors and overexpressed after chemoembolization.
Collapse
|
63
|
Comparative study of various subpopulations of cytotoxic cells in blood and ascites from patients with ovarian carcinoma. Contemp Oncol (Pozn) 2015; 19:290-9. [PMID: 26557777 PMCID: PMC4631306 DOI: 10.5114/wo.2015.54388] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 11/10/2014] [Accepted: 03/18/2015] [Indexed: 12/13/2022] Open
Abstract
AIM OF THE STUDY A number of observations have indicated that the immune system plays a significant role in patients with epithelial ovarian cancer (EOC). In cases of EOC, the prognostic significance of tumour infiltrating lymphocytes has not been clearly explained yet. The aim is to determine the phenotype and activation molecules of cytotoxic T cell and NK cell subpopulations and to compare their representation in malignant ascites and peripheral blood in patients with ovarian cancer. MATERIAL AND METHODS Cytotoxic cells taken from blood samples of the cubital vein and malignant ascites were obtained from 53 patients with EOC. Their surface and activation characteristics were determined by means of a flow cytometer. Immunophenotype multiparametric analysis of peripheral blood lymphocytes (PBLs) and tumour infiltrating lymphocytes (TILs) was carried out. RESULTS CD3(+) T lymphocytes were the main population of TILs (75.9%) and PBLs (70.9%). The number of activating T cells was significantly higher in TILs: CD3(+)/69(+) 6.7% vs. 0.8% (p < 0.001). The representation of (CD3(-)/16(+)56(+)) NK cells in TILs was significantly higher: 11.0% vs. 5.6% (p = 0.041); likewise CD56(bright) and CD-56(bright) from CD56(+) cells were higher in TILs (both p < 0.001). The activation receptor NKG2D was present in 45.1% of TILs vs. 32.3% of PBLs (p = 0.034), but we did not find a significant difference in the numbers of CD56(+)/NKG2D(+) in TILs and PBLs. CONCLUSIONS These results prove that the characteristics and intensity of anti-tumour responses are different in compared compartments (ascites/PBLs). The knowledge of phenotype and functions of effector cells is the basic precondition for understanding the anti-tumour immune response.
Collapse
|
64
|
Gorter A, Prins F, van Diepen M, Punt S, van der Burg SH. The tumor area occupied by Tbet+ cells in deeply invading cervical cancer predicts clinical outcome. J Transl Med 2015; 13:295. [PMID: 26357849 PMCID: PMC4566330 DOI: 10.1186/s12967-015-0664-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 09/07/2015] [Indexed: 01/08/2023] Open
Abstract
Background Deep invasion of the normal surrounding tissue by primary cervical cancers is a prognostic parameter for postoperative radiotherapy and relatively worse survival. However, patients with tumor-specific immunity in the blood at the time of surgery displayed a much better disease free survival. Here we analyzed if this was due to a more tumor-rejecting immune population in the tumor. Methods Tumor sections from a group of 58 patients with deep normal tissue-invading cervical tumors were stained for the presence of immune cells (CD45), IFNγ-producing cells (Tbet) and regulatory T cells (Foxp3) by immunohistochemistry. The slides were scanned and both the tumor area and the infiltration of the differently stained immune cells were objectively quantified using computer software. Results We found that an increased percentage of tumor occupied by CD45+ cells was strongly associated with an enhanced tumor-infiltration by Tbet+ cells and Foxp3+ cells. Furthermore, the area occupied by CD45+ immune cells, Tbet+ cells but not Foxp3+ cells within the tumor were, in addition to the lymph node status of patients, associated with a longer disease free survival and disease specific survival. Moreover, interaction analyses between these immune parameters and lymph node status indicated an independent prognostic effect of tumor infiltrating Tbet+ cells. This was confirmed in a multivariate Cox analysis. Conclusions The area occupied by a preferentially type I oriented CD45+ cell infiltrate forms an independent prognostic factor for recurrence-free and disease-specific survival on top of the patient’s lymph node status. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0664-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Arko Gorter
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Frans Prins
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Merel van Diepen
- Department of Clinical Epidemiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Simone Punt
- Department of Pathology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| | - Sjoerd H van der Burg
- Department of Clinical Oncology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
| |
Collapse
|
65
|
Varela-Calviño R, Cordero OJ. Stem and immune cells in colorectal primary tumour: Number and function of subsets may diagnose metastasis. World J Immunol 2015; 5:68-77. [DOI: 10.5411/wji.v5.i2.68] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/27/2015] [Accepted: 07/17/2015] [Indexed: 02/05/2023] Open
Abstract
An important percentage of colorectal cancer (CRC) patients will develop metastasis, mainly in the liver, even after a successful curative resection. This leads to a very high mortality rate if metastasis is not detected early on. Disseminated cancer cells develop from metastatic stem cells (MetSCs). Recent knowledge has accumulated about these cells particularly in CRC, so they may now be tracked from the removed primary tumour. This approach could be especially important in prognosis of metastasis because it is becoming clear that metastasis does not particularly rely on testable driver mutations. Among the many traits supporting an epigenetic amplification of cell survival and self-renewal mechanisms of MetSCs, the role of many immune cell populations present in tumour tissues is becoming clear. The amount of tumour-infiltrating lymphocytes (T, B and natural killer cells), dendritic cells and some regulatory populations have already shown prognostic value or to be correlated with disease-free survival time, mainly in immunohistochemistry studies of unique cell populations. Parallel analyses of these immune cell populations together with MetSCs in the primary tumour of patients, with later follow-up data of the patients, will define the usefulness of specific combinations of both immune and MetSCs cell populations. It is expected that these combinations, together to different biomarkers in the form of an immune score, may predict future tumour recurrences, metastases and/or mortality in CRC. It will also support the future design of improved immunotherapeutic approaches against metastasis.
Collapse
|
66
|
Halvorsen EC, Mahmoud SM, Bennewith KL. Emerging roles of regulatory T cells in tumour progression and metastasis. Cancer Metastasis Rev 2015; 33:1025-41. [PMID: 25359584 DOI: 10.1007/s10555-014-9529-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The metastasis of cancer is a complex and life-threatening process that is only partially understood. Immune suppressive cells are recognized as important contributors to tumour progression and may also promote the development and growth of tumour metastases. Specifically, regulatory T cells (Tregs) have been found to promote primary tumour progression, and emerging pre-clinical data suggests that Tregs may promote metastasis and metastatic tumour growth. While the precise role that Tregs play in metastatic progression is understudied, recent findings have indicated that by suppressing innate and adaptive anti-tumour immunity, Tregs may shield tumour cells from immune detection, and thereby allow tumour cells to survive, proliferate and acquire characteristics that facilitate dissemination. This review will highlight our current understanding of Tregs in metastasis, including an overview of pre-clinical findings and discussion of clinical data regarding Tregs and therapeutic outcome. Evolving strategies to directly ablate Tregs or to inhibit their function will also be discussed. Improving our understanding of how Tregs may influence tumour metastasis may lead to novel treatments for metastatic cancer.
Collapse
Affiliation(s)
- Elizabeth C Halvorsen
- Department of Integrative Oncology, British Columbia Cancer Agency, 9-202, 675 West 10th Avenue, Vancouver, British Columbia, V5Z 1L3, Canada
| | | | | |
Collapse
|
67
|
Abstract
The accumulation of tumor infiltrating lymphocytes (TILs) in ovarian cancer is prognostic for increased survival while increases in immunosuppressive regulatory T-cells (Tregs) are associated with poor outcomes. Approaches that bolster tumor-reactive TILs may limit tumor progression. However, identifying tumor-reactive TILs in ovarian cancer has been challenging, though adoptive TIL therapy in patients has been encouraging. Other forms of TIL immunomodulation remain under investigation including Treg depletion, antibody-based checkpoint modification, activation and amplification using dendritic cells, antigen presenting cells or IL-2 cytokine culture, adjuvant cytokine injections, and gene-engineered T-cells. Many approaches to TIL manipulation inhibit ovarian cancer progression in preclinical or clinical studies as monotherapy. Here, we review the impact of TILs in ovarian cancer and attempts to mobilize TILs to halt tumor progression. We conclude that effective TIL therapy for ovarian cancer is at the brink of translation and optimal TIL activity may require combined methodologies to deliver clinically-relevant treatment.
Collapse
Affiliation(s)
- Phillip P Santoiemma
- a Ovarian Cancer Research Center ; Department of Obstetrics and Gynecology ; Perelman School of Medicine; University of Pennsylvania ; Philadelphia , PA USA
| | | |
Collapse
|
68
|
Santoiemma PP, Powell DJ. Tumor infiltrating lymphocytes in ovarian cancer. Cancer Biol Ther 2015. [PMID: 25894333 DOI: 10.1080/15384047.2015.1040960]+[] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022] Open
Abstract
The accumulation of tumor infiltrating lymphocytes (TILs) in ovarian cancer is prognostic for increased survival while increases in immunosuppressive regulatory T-cells (Tregs) are associated with poor outcomes. Approaches that bolster tumor-reactive TILs may limit tumor progression. However, identifying tumor-reactive TILs in ovarian cancer has been challenging, though adoptive TIL therapy in patients has been encouraging. Other forms of TIL immunomodulation remain under investigation including Treg depletion, antibody-based checkpoint modification, activation and amplification using dendritic cells, antigen presenting cells or IL-2 cytokine culture, adjuvant cytokine injections, and gene-engineered T-cells. Many approaches to TIL manipulation inhibit ovarian cancer progression in preclinical or clinical studies as monotherapy. Here, we review the impact of TILs in ovarian cancer and attempts to mobilize TILs to halt tumor progression. We conclude that effective TIL therapy for ovarian cancer is at the brink of translation and optimal TIL activity may require combined methodologies to deliver clinically-relevant treatment.
Collapse
Affiliation(s)
- Phillip P Santoiemma
- a Ovarian Cancer Research Center ; Department of Obstetrics and Gynecology ; Perelman School of Medicine; University of Pennsylvania ; Philadelphia , PA USA
| | | |
Collapse
|
69
|
Abstract
The accumulation of tumor infiltrating lymphocytes (TILs) in ovarian cancer is prognostic for increased survival while increases in immunosuppressive regulatory T-cells (Tregs) are associated with poor outcomes. Approaches that bolster tumor-reactive TILs may limit tumor progression. However, identifying tumor-reactive TILs in ovarian cancer has been challenging, though adoptive TIL therapy in patients has been encouraging. Other forms of TIL immunomodulation remain under investigation including Treg depletion, antibody-based checkpoint modification, activation and amplification using dendritic cells, antigen presenting cells or IL-2 cytokine culture, adjuvant cytokine injections, and gene-engineered T-cells. Many approaches to TIL manipulation inhibit ovarian cancer progression in preclinical or clinical studies as monotherapy. Here, we review the impact of TILs in ovarian cancer and attempts to mobilize TILs to halt tumor progression. We conclude that effective TIL therapy for ovarian cancer is at the brink of translation and optimal TIL activity may require combined methodologies to deliver clinically-relevant treatment.
Collapse
Affiliation(s)
- Phillip P Santoiemma
- a Ovarian Cancer Research Center ; Department of Obstetrics and Gynecology ; Perelman School of Medicine; University of Pennsylvania ; Philadelphia , PA USA
| | | |
Collapse
|
70
|
Chang LY, Lin YC, Chiang JM, Mahalingam J, Su SH, Huang CT, Chen WT, Huang CH, Jeng WJ, Chen YC, Lin SM, Sheen IS, Lin CY. Blockade of TNF-α signaling benefits cancer therapy by suppressing effector regulatory T cell expansion. Oncoimmunology 2015; 4:e1040215. [PMID: 26451304 DOI: 10.1080/2162402x.2015.1040215] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/06/2015] [Accepted: 04/08/2015] [Indexed: 01/31/2023] Open
Abstract
Effector but not naive regulatory T cells (Treg cells) can accumulate in the peripheral blood as well as the tumor microenvironment, expand during tumor progression and be one of the main suppressors for antitumor immunity. However, the underlying mechanisms for effector Treg cell expansion in tumor are still unknown. We demonstrate that effector Treg cell-mediated suppression of antitumor CD8+ T cells is tumor-nonspecific. Furthermore, TNFR2 expression is increased in these Treg cells by Affymetrix chip analysis which was confirmed by monoclonal antibody staining in both hepatocellular carcinoma (HCC) and colorectal cancer (CRC) patients and murine models. Correspondingly, increased levels of TNF-α in both tissue and serum were also demonstrated. Interestingly, TNF-α could not only expand effector Treg cells through TNFR2 signaling, but also enhanced their suppressive activity against antitumor immunity of CD8+ T cells. Furthermore, targeting TNFR2 signaling with a TNF-α inhibitor could selectively reduce rapid resurgence of effector Treg cells after cyclophosphamide-induced lymphodepletion and markedly inhibit the growth of established tumors. Herein, we propose a novel mechanism in which TNF-α could promote tumor-associated effector Treg cell expansion and suggest a new cancer immunotherapy strategy using TNF-α inhibitors to reduce effector Treg cells expansion after cyclophosphamide-induced lymphodepletion.
Collapse
Affiliation(s)
- Li-Yuan Chang
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Yung-Chang Lin
- College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan ; Department of Hematology/Oncology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Jy-Ming Chiang
- College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan ; Colorectal Surgery Section; Department of Surgery; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Jayashri Mahalingam
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Shih-Huan Su
- College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan
| | - Ching-Tai Huang
- College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan ; Department of Infectious Disease; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan ; College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan
| | - Chien-Hao Huang
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Wen-Juei Jeng
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan
| | - Yi-Cheng Chen
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan ; College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan
| | - Shi-Ming Lin
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan ; College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan
| | - I-Shyan Sheen
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan ; College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan
| | - Chun-Yen Lin
- Division of Hepatology; Department of Gastroenterology and Hepatology; Linkou Medical Center; Chang Gung Memorial Hospital ; Kweishan, Taoyuan, Taiwan ; College of Medicine; Chang Gung University ; Kweishan, Taoyuan, Taiwan
| |
Collapse
|
71
|
Wu J, Cui H, Zhu Z, Wang L, Li H, Wang D. Effect of HIF1α on Foxp3 expression in CD4+ CD25- T lymphocytes. Microbiol Immunol 2015; 58:409-15. [PMID: 24931519 DOI: 10.1111/1348-0421.12168] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/16/2014] [Accepted: 05/27/2014] [Indexed: 02/02/2023]
Abstract
The aim of the present study was to investigate the effect of HIF1α on Foxp3 expression in CD4(+) CD25(-) T lymphocytes. CD4(+) CD25(-) T lymphocytes were sorted from PBMC using a CD4(+) CD25(+) regulatory T cell isolation kit. Lentivirus containing lentiviral vector that overexpressed HIF1α (HIF-lenti) and those containing empty expression vector (control-lenti) were produced. Meanwhile, lentivirus that contained lentiviral vector that suppressed HIF1α expression (siHIF-lenti) and those containing control vector (sicontrol-lenti) were also generated. The sorted CD4(+) CD25(-) T lymphocytes were infected with HIF-lenti, control-lenti, siHIF-lenti, and sicontrol-lenti, respectively. Approximately 72 hr after transduction, real-time PCR and Western blot were carried out to analyze the RNA and protein expression level of HIF1α and Foxp3. CD4(+) CD25(-) T lymphocytes cultured under 21% O2 , 5% CO2 (normoxia) and 1% O2 , 5% CO2 (hypoxia) were used as control. Our results showed that overexpression of HIF1α increased both mRNA and protein expression of Foxp3 and, meanwhile, suppression of HIF1α expression by RNAi could reverse high Foxp3 expression in CD4(+) CD25(-) T lymphocytes caused by hypoxic culture. These results suggested that hypoxia could stimulate Foxp3 expression by increasing HIF1α expression in CD4(+) T lymphocytes which may promote CD4(+) T lymphocytes to convert to Treg.
Collapse
Affiliation(s)
- Jianguo Wu
- The Second Hospital of Tianjin Medical University, No. 23 Pingjiang Road, Hexi District, Tianjin, 300211
| | | | | | | | | | | |
Collapse
|
72
|
Domagala-Kulawik J, Osinska I, Hoser G. Mechanisms of immune response regulation in lung cancer. Transl Lung Cancer Res 2015; 3:15-22. [PMID: 25806277 DOI: 10.3978/j.issn.2218-6751.2013.11.03] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 11/25/2013] [Indexed: 12/12/2022]
Abstract
Lung cancer is a leading cause of cancer deaths. As a solid tumor with low antigenicity and heterogenic phenotype lung cancer evades host immune defense. The cytotoxic anticancer effect is suppressed by a complex mechanism in tumor microenvironment. The population of regulatory T cells (Tregs) plays a crucial role in this inhibition of immune response. Tregs are defined by presence of forkhead box P3 (Foxp3) molecule. The high expression of Foxp3 was found in lung cancer cells and in tumor infiltrating lymphocytes (TIL). Cytotoxic T-lymphocyte antigen 4 (CTLA4) is constitutively expressed on Tregs and suppresses T cell activation. The elevated CTLA4 expression in lymphocytes in patients with lung cancer was found. Recently the antibodies blocking CTLA4 showed some clinical efficacy in patients with lung cancer. Cancer cells and immune cells release many cytokines capable to show suppressive immune effect in cancer microenvironment. The most active are transforming growth factorβ (TGFβ) and IL-10. The pleiotropic function of Th17 population is TGFβ related. The myeloid lineage of suppressor cells in lung cancer is represented by tumor associated macrophages (TAM) with phenotype of M2 macrophages and some regulatory properties with releasing amounts of IL-10 and TGFβ. The myeloid derived suppressor cells (MDSCs) control cytotoxic T cell activity in mechanisms which are highly dependent on the context of tumor environment. The mechanisms of anticancer immune response regulation need further investigation as an important target to new way of treatment.
Collapse
Affiliation(s)
- Joanna Domagala-Kulawik
- 1 Department of Internal Diseases, Pneumonology and Allergology, Medical University of Warsaw, Warsaw, Poland ; 2 Department of Pathology, Medical University of Warsaw, Warsaw, Poland ; 3 Laboratory of Flow Cytometry, Medical Center of Postgraduate Education, Warsaw, Poland
| | - Iwona Osinska
- 1 Department of Internal Diseases, Pneumonology and Allergology, Medical University of Warsaw, Warsaw, Poland ; 2 Department of Pathology, Medical University of Warsaw, Warsaw, Poland ; 3 Laboratory of Flow Cytometry, Medical Center of Postgraduate Education, Warsaw, Poland
| | - Grazyna Hoser
- 1 Department of Internal Diseases, Pneumonology and Allergology, Medical University of Warsaw, Warsaw, Poland ; 2 Department of Pathology, Medical University of Warsaw, Warsaw, Poland ; 3 Laboratory of Flow Cytometry, Medical Center of Postgraduate Education, Warsaw, Poland
| |
Collapse
|
73
|
Nelson BH. New insights into tumor immunity revealed by the unique genetic and genomic aspects of ovarian cancer. Curr Opin Immunol 2015; 33:93-100. [PMID: 25710852 DOI: 10.1016/j.coi.2015.02.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 01/26/2015] [Accepted: 02/06/2015] [Indexed: 02/08/2023]
Abstract
Ovarian cancer is a challenging disease that nonetheless provokes brisk, prognostically favorable immune responses in many patients. The biology of ovarian cancer offers unique insights into the factors that engender protective tumor immunity. Tumor-infiltrating lymphocyte (TIL) patterns range from CD8+ TIL alone to complex aggregates that additionally include CD4+ and CD20+ TIL. Patient survival rates increase in step with TIL complexity, suggesting cooperative interactions between these lymphocyte subsets. TIL are associated with high-grade serous histology and BRCA1 disruption; the latter may promote immunity through altered cytokine signaling, oxidative stress responses, or antigen expression. The ovarian tumor genome demonstrates extensive spatial and temporal heterogeneity, yet TIL exhibit relatively homogeneous spatial distributions that may reflect core properties of the tumor. In summary, ovarian cancer attracts the attention of the immune system in ways that create unique challenges and opportunities for immunotherapy.
Collapse
Affiliation(s)
- Brad H Nelson
- Deeley Research Centre, British Columbia Cancer Agency, 2410 Lee Avenue, Victoria, British Columbia V8R 6V5, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, Canada; Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.
| |
Collapse
|
74
|
Wertel I, Surówka J, Polak G, Barczyński B, Bednarek W, Jakubowicz-Gil J, Bojarska-Junak A, Kotarski J. Macrophage-derived chemokine CCL22 and regulatory T cells in ovarian cancer patients. Tumour Biol 2015; 36:4811-7. [PMID: 25647263 PMCID: PMC4529457 DOI: 10.1007/s13277-015-3133-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/19/2015] [Indexed: 12/02/2022] Open
Abstract
The study was undertaken to evaluate macrophage-derived chemokine (CCL22) levels in the peritoneal fluid (PF) and plasma of patients with ovarian cancer (n = 93) in relation to regulatory T cells (Tregs; n = 75). The peritoneal fluid CCL22 concentrations were significantly higher in epithelial ovarian cancer (EOC) patients than in patients with benign tumors-serous cystadenoma (n = 32). There was no difference in plasma levels of CCL22 in EOC patients compared with the non-cancer and healthy volunteers (n = 10). There were no significant differences in the plasma and PF CCL22 levels based on tumor grade. However, women with stage IV FIGO (International Federation of Gynecologists and Obstetricians) had significantly higher plasma CCL22 levels than patients with stages I and III. Women with stage I FIGO had significantly higher PF CCL22 levels than patients with stages II and III. Women with endometrioid cystadenocarcinoma had higher PF CCL22 levels than women with undifferentiated carcinoma. The percentage of tumor-infiltrating Tregs (11.06 %) was significantly higher compared to PF (3.05 %) and peripheral blood (PB) (2.01 %). Moreover, the percentage of Tregs was higher in the PF than in the PB of EOC patients. There were no significant differences in the PB, PF, and tumor-infiltrating Tregs percentage based on tumor stage, grade, or histology. Elevated levels of CCL22 found in the ascites could create a chemokine gradient aiding in Treg cells migration. Increased Tregs percentage in the local microenvironment of ovarian cancer might be an important mechanism of immunosuppression.
Collapse
Affiliation(s)
- I Wertel
- I Chair and Department of Oncological Gynaecology and Gynaecology, Medical University of Lublin, Staszica 16, 20-081, Lublin, Poland,
| | | | | | | | | | | | | | | |
Collapse
|
75
|
Chu R, Liu SYW, Vlantis AC, van Hasselt CA, Ng EKW, Fan MD, Ng SK, Chan ABW, Du J, Wei W, Liu X, Liu Z, Chen GG. Inhibition of Foxp3 in cancer cells induces apoptosis of thyroid cancer cells. Mol Cell Endocrinol 2015; 399:228-34. [PMID: 25312920 DOI: 10.1016/j.mce.2014.10.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 09/25/2014] [Accepted: 10/08/2014] [Indexed: 12/31/2022]
Abstract
Foxp3+ regulatory T cells (Tregs) in lymphocytes facilitate the thyroid tumor growth and invasion. Very limited information is available on Foxp3 expression in thyroid cancer cells and its function is totally unknown. This study demonstrated that Foxp3 expression was increased in thyroid cancer cells. Inhibition of Foxp3 decreased cell proliferation and migration, but increased apoptosis, suggesting a positive role of Foxp3 in cancer growth. Interestingly, Foxp3 inhibition enhanced PPARγ expression and activity. In addition, Foxp3 inhibition downregulated NF-κB subunit p65 and cyclin D1 but upregulated caspase-3 levels. These molecular changes are in line with Foxp3 shRNA-mediated alteration of cell functions. Collectively, our study demonstrates that thyroid cancer cells express a high level of functional Foxp3 and that the inhibition of the Foxp3 suppresses the proliferation and migration but promotes apoptosis, suggesting that targeting Foxp3 in thyroid cancer cells may offer a novel therapeutic option for thyroid cancer.
Collapse
Affiliation(s)
- Ryan Chu
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Shirley Y W Liu
- Department of Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Alexander C Vlantis
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - C Andrew van Hasselt
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Enders K W Ng
- Department of Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Michael Dahua Fan
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Siu Kwan Ng
- Department of Otorhinolaryngology, Head and Neck Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Amy B W Chan
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong, China
| | - Jing Du
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Wei Wei
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Xiaoling Liu
- Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Zhimin Liu
- Department of Biochemistry and Molecular Biology, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - George G Chen
- Department of Surgery, Prince of Wales Hospital, Shatin, NT, Hong Kong, China.
| |
Collapse
|
76
|
deLeeuw RJ, Kroeger DR, Kost SE, Chang PP, Webb JR, Nelson BH. CD25 Identifies a Subset of CD4+FoxP3− TIL That Are Exhausted Yet Prognostically Favorable in Human Ovarian Cancer. Cancer Immunol Res 2014; 3:245-53. [DOI: 10.1158/2326-6066.cir-14-0146] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
77
|
Unger WW, Mayer CT, Engels S, Hesse C, Perdicchio M, Puttur F, Streng-Ouwehand I, Litjens M, Kalay H, Berod L, Sparwasser T, van Kooyk Y. Antigen targeting to dendritic cells combined with transient regulatory T cell inhibition results in long-term tumor regression. Oncoimmunology 2014; 4:e970462. [PMID: 26405564 PMCID: PMC4570108 DOI: 10.4161/21624011.2014.970462] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 12/20/2022] Open
Abstract
Therapeutic vaccinations against cancer are still largely ineffective. Major caveats are inefficient delivery of tumor antigens to dendritic cells (DCs) and excessive immune suppression by Foxp3+ regulatory T cells (Tregs), resulting in defective T cell priming and failure to induce tumor regression. To circumvent these problems we evaluated a novel combinatorial therapeutic strategy. We show that tumor antigen targeting to DC-SIGN in humanized hSIGN mice via glycans or specific antibodies induces superior T cell priming. Next, this targeted therapy was combined with transient Foxp3+ Treg depletion employing hSIGNxDEREG mice. While Treg depletion alone slightly delayed B16-OVA melanoma growth, only the combination therapy instigated long-term tumor regression in a substantial fraction of mice. This novel strategy resulted in optimal generation of antigen-specific activated CD8+ T cells which accumulated in regressing tumors. Notably, Treg depletion also allowed the local appearance of effector T cells specific for endogenous B16 antigens. This indicates that antitumor immune responses can be broadened by therapies aimed at controlling Tregs in tumor environments. Thus, transient inhibition of Treg-mediated immune suppression potentiates DC targeted antigen vaccination and tumor-specific immunity.
Collapse
Affiliation(s)
- Wendy Wj Unger
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| | - Christian T Mayer
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Medical School Hanover and the Helmholtz Centre for Infection Research , Hannover, Germany
| | - Steef Engels
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| | - Christina Hesse
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Medical School Hanover and the Helmholtz Centre for Infection Research , Hannover, Germany
| | - Maurizio Perdicchio
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| | - Franz Puttur
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Medical School Hanover and the Helmholtz Centre for Infection Research , Hannover, Germany
| | - Ingeborg Streng-Ouwehand
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| | - Manja Litjens
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| | - Hakan Kalay
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| | - Luciana Berod
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Medical School Hanover and the Helmholtz Centre for Infection Research , Hannover, Germany
| | - Tim Sparwasser
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, a Joint Venture between the Medical School Hanover and the Helmholtz Centre for Infection Research , Hannover, Germany
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology; VU University Medical Center ; Amsterdam, The Netherlands
| |
Collapse
|
78
|
Pinheiro D, Chang YM, Bryant H, Szladovits B, Dalessandri T, Davison LJ, Yallop E, Mills E, Leo C, Lara A, Stell A, Polton G, Garden OA. Dissecting the regulatory microenvironment of a large animal model of non-Hodgkin lymphoma: evidence of a negative prognostic impact of FOXP3+ T cells in canine B cell lymphoma. PLoS One 2014; 9:e105027. [PMID: 25119018 PMCID: PMC4132014 DOI: 10.1371/journal.pone.0105027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 07/19/2014] [Indexed: 02/06/2023] Open
Abstract
The cancer microenvironment plays a pivotal role in oncogenesis, containing a number of regulatory cells that attenuate the anti-neoplastic immune response. While the negative prognostic impact of regulatory T cells (Tregs) in the context of most solid tissue tumors is well established, their role in lymphoid malignancies remains unclear. T cells expressing FOXP3 and Helios were documented in the fine needle aspirates of affected lymph nodes of dogs with spontaneous multicentric B cell lymphoma (BCL), proposed to be a model for human non-Hodgkin lymphoma. Multivariable analysis revealed that the frequency of lymph node FOXP3+ T cells was an independent negative prognostic factor, impacting both progression-free survival (hazard ratio 1.10; p = 0.01) and overall survival (hazard ratio 1.61; p = 0.01) when comparing dogs showing higher than the median FOXP3 expression with those showing the median value of FOXP3 expression or less. Taken together, these data suggest the existence of a population of Tregs operational in canine multicentric BCL that resembles thymic Tregs, which we speculate are co-opted by the tumor from the periphery. We suggest that canine multicentric BCL represents a robust large animal model of human diffuse large BCL, showing clinical, cytological and immunophenotypic similarities with the disease in man, allowing comparative studies of immunoregulatory mechanisms.
Collapse
Affiliation(s)
- Dammy Pinheiro
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
| | - Yu-Mei Chang
- Research Office, The Royal Veterinary College, London, United Kingdom
| | - Hannah Bryant
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
| | - Balazs Szladovits
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Tim Dalessandri
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
| | - Lucy J. Davison
- Henry Wellcome Building, Centre for Cellular and Molecular Physiology, University of Oxford, Oxford, United Kingdom
- Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Elizabeth Yallop
- Clinical Investigation Centre, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Emily Mills
- Clinical Investigation Centre, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Chiara Leo
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Ana Lara
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Anneliese Stell
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Gerry Polton
- Oncology Service, North Downs Specialist Referrals, Bletchingley, Surrey, United Kingdom
| | - Oliver A. Garden
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
- * E-mail:
| |
Collapse
|
79
|
Haque M, Fino K, Lei F, Xiong X, Song J. Utilizing regulatory T cells against rheumatoid arthritis. Front Oncol 2014; 4:209. [PMID: 25152867 PMCID: PMC4125784 DOI: 10.3389/fonc.2014.00209] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 07/23/2014] [Indexed: 01/07/2023] Open
Abstract
Regulatory T (Treg) cells are essential for normal immune surveillance systems, and their dysfunction leads to development of diseases, such as autoimmune disorders. CD4+CD25+ Treg cells are well-known suppressive cells, which express the transcription factor Foxp3, are indispensable for the maintenance of immune self-tolerance and homeostasis by suppressing aberrant or excessive immune response. Other Foxp3− Treg cells include Tr1, Th3, CD8+CD28−/−, and Qa1-restricted T cells; however, the contribution of these Treg cells to self-tolerance, immune homeostasis as well as preventing autoimmunity is not well defined. Here, we discuss the phenotypes and function of Foxp3+ Treg cells and the potential use of such Treg cells against rheumatoid arthritis (RA). Of note, even though most expanded populations of Foxp3+ Treg cells exhibit suppressive activity, tissue-associated or antigen-specific Treg cells appear superior in suppressing local autoimmune disorders such as RA. In addition, utilizing tissue-associated Foxp3+ Treg cells from stem cells may stable Foxp3 expression and avoid induction of a potentially detrimental systemic immunosuppression.
Collapse
Affiliation(s)
- Mohammad Haque
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine , Hershey, PA , USA
| | - Kristin Fino
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine , Hershey, PA , USA
| | - Fengyang Lei
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine , Hershey, PA , USA
| | - Xiaofang Xiong
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine , Hershey, PA , USA
| | - Jianxun Song
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine , Hershey, PA , USA
| |
Collapse
|
80
|
The intratumoural subsite and relation of CD8(+) and FOXP3(+) T lymphocytes in colorectal cancer provide important prognostic clues. Br J Cancer 2014; 110:2551-9. [PMID: 24675384 PMCID: PMC4021513 DOI: 10.1038/bjc.2014.161] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 12/17/2022] Open
Abstract
Background: To find improved tools for prognostic evaluation in patients with colorectal cancer (CRC), we have analysed how infiltration of cytotoxic T lymphocytes (CD8+) and regulatory T lymphocytes (FoxP3+) correlates to prognosis, not only according to quantity and relation, but also to subsite within tumours of different molecular characteristics (microsatellite instability and CpG island methylator phenotype status). Methods: CD8 and FOXP3 expression was evaluated by immunohistochemistry in 426 archival tumour tissue samples from patients surgically resected for CRC. The average infiltration of CD8+ and FOXP3+ cells was assessed along the tumour invasive front, in the tumour centre and within the tumour epithelium (intraepithelial). Results: We found that infiltration of CD8+ T lymphocytes within the tumour epithelium provided the strongest prognostic information (P<0.001). At the tumour invasive front and tumour centre, FOXP3 expression withheld the strongest association to prognosis (P<0.001), suggesting FOXP3+ T-lymphocyte infiltration to be a better prognostic tool than CD8+ T lymphocytes at these intratumoural subsites. We further analysed the possible prognostic impact of the relation between these T-cell subsets, finding that a high intraepithelial CD8 expression was associated with a better patient outcome, independent of FOXP3 infiltration. In groups of low intraepithelial CD8 expression, however, a high infiltration rate of FOXP3+ cells at the tumour invasive front, significantly improved prognosis. Conclusions: Analyses of intraepithelial infiltration of CD8+ T lymphocytes, infiltration of FOXP3+ T lymphocytes at the tumour front or centre, and the relation between these subsets, may be a valuable tool for predicting prognosis in colon cancer.
Collapse
|
81
|
Sim GC, Martin-Orozco N, Jin L, Yang Y, Wu S, Washington E, Sanders D, Lacey C, Wang Y, Vence L, Hwu P, Radvanyi L. IL-2 therapy promotes suppressive ICOS+ Treg expansion in melanoma patients. J Clin Invest 2014; 124:99-110. [PMID: 24292706 DOI: 10.1172/jci46266] [Citation(s) in RCA: 178] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 09/26/2013] [Indexed: 12/11/2022] Open
Abstract
High-dose (HD) IL-2 therapy in patients with cancer increases the general population of Tregs, which are positive for CD4, CD25, and the Treg-specific marker Foxp3. It is unknown whether specific subsets of Tregs are activated and expanded during HD IL-2 therapy or whether activation of any particular Treg subset correlates with clinical outcome. Here, we evaluated Treg population subsets that were induced in patients with melanoma following HD IL-2 therapy. We identified a Treg population that was positive for CD4, CD25, Foxp3, and the inducible T cell costimulator (ICOS). This Treg population increased more than any other lymphocyte subset during HD IL-2 therapy and had an activated Treg phenotype, as indicated by high levels of CD39, CD73, and TGF-β. ICOS(+) Tregs were the most proliferative lymphocyte population in the blood after IL-2 therapy. Patients with melanoma with enhanced expansion of ICOS(+) Tregs in blood following the first cycle of HD IL-2 therapy had worse clinical outcomes than patients with fewer ICOS(+) Tregs. However, there was no difference in total Treg expansion between HD IL-2 responders and nonresponders. These data suggest that increased expansion of the ICOS(+) Treg population following the first cycle of HD IL-2 therapy may be predictive of clinical outcome.
Collapse
|
82
|
Imanguli MM, Cowen EW, Rose J, Dhamala S, Swaim W, Lafond S, Yagi B, Gress RE, Pavletic SZ, Hakim FT. Comparative analysis of FoxP3(+) regulatory T cells in the target tissues and blood in chronic graft versus host disease. Leukemia 2014; 28:2016-27. [PMID: 24577531 DOI: 10.1038/leu.2014.92] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 02/09/2014] [Accepted: 02/18/2014] [Indexed: 01/11/2023]
Abstract
Activation and migration of regulatory T cells (Treg) into tissue is critical in control of inflammation, but has not been examined extensively in chronic graft versus host disease (cGVHD). In parallel studies of tissues and blood, we determined that FoxP3(+) T cells increased in proportion to T effectors (Teff) in tissue infiltrates in oral and cutaneous lichenoid cGVHD. These FoxP3(+) cells expressed distinguishing phenotypic and functional markers of Treg (CD3(+), CD4(+), CD27(+), ICOS(+) and CD39(+)), not found on FoxP3(-) Teff. Both Teff and FoxP3(+) Treg expressed T-bet and the chemokine receptor CXCR3, however, consistent with a common mechanism of chemokine-mediated migration into tissue. Furthermore, functional markers (ICOS and CD39) and chemokine receptors (CXCR3) were both present in a higher proportion of FoxP3(+) cells in tissues than in peripheral blood, consistent with recruitment and activation of Treg in cGVHD target tissues. Finally, the 'activated' CD45RA(-)FoxP3(hi) subset of Treg cells, which highly express functional markers, were found in comparable frequencies in cGVHD patients and normal controls, despite a significant deficit in naive 'resting' Treg. These findings are consistent with Treg capacity to upregulate functional markers and traffick into tissue in cGVHD.
Collapse
Affiliation(s)
- M M Imanguli
- 1] Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA [2] Department of Otolaryngology Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - E W Cowen
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - J Rose
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - S Dhamala
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - W Swaim
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, Bethesda, MD, USA
| | - S Lafond
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - B Yagi
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - R E Gress
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - S Z Pavletic
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - F T Hakim
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| |
Collapse
|
83
|
Nishikawa H, Sakaguchi S. Regulatory T cells in cancer immunotherapy. Curr Opin Immunol 2014; 27:1-7. [PMID: 24413387 DOI: 10.1016/j.coi.2013.12.005] [Citation(s) in RCA: 511] [Impact Index Per Article: 51.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 12/13/2013] [Indexed: 12/22/2022]
Abstract
FOXP3(+)CD25(+)CD4(+) regulatory T (Treg) cells, crucial for the maintenance of immunological self-tolerance, are abundant in tumors. Most of them are chemo-attracted to tumor tissues, expanding locally and differentiating into a Treg-cell subpopulation that strongly suppresses the activation and expansion of tumor-antigen-specific effector T cells. Several cancer immunotherapies targeting FOXP3(+)CD4(+) Treg cells, including depletion of Treg cells, are currently being tested in the clinic. In addition, clinical benefit of immune-checkpoint blockade, such as anti-CTLA-4 monoclonal antibody therapy, could be attributed at least in part to depletion of FOXP3(+)CD4(+) Treg cells from tumor tissues. Thus, optimal strategies need to be established for reducing Treg cells or attenuating their suppressive activity in tumor tissues, together with activating and expanding tumor-specific effector T cells.
Collapse
Affiliation(s)
- Hiroyoshi Nishikawa
- Experimental Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Shimon Sakaguchi
- Experimental Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan.
| |
Collapse
|
84
|
Govindaraj C, Tan P, Walker P, Wei A, Spencer A, Plebanski M. Reducing TNF receptor 2+ regulatory T cells via the combined action of azacitidine and the HDAC inhibitor, panobinostat for clinical benefit in acute myeloid leukemia patients. Clin Cancer Res 2013; 20:724-35. [PMID: 24297862 DOI: 10.1158/1078-0432.ccr-13-1576] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE Acute myeloid leukemia (AML) provides an environment that enables immune suppression, resulting in functionally defective effector T cells; regulatory T cells (Treg) are significant contributors to the impaired antitumor immune response. As TNF is present at high levels in AML and TNF receptor-2 (TNFR2)-expressing Tregs identify highly functional Tregs, we examine the hypothesis that TNFR2(+) Tregs are a relevant Treg subset in this cancer. We also determine the effect of the novel combinatorial therapy of the demethylating agent, azacitidine with the histone deacetylase inhibitor, panobinostat on Tregs, particularly TNFR2(+) Tregs. EXPERIMENTAL DESIGN Thirty healthy donors and 14 patients with AML were enrolled in this study. Patients were treated with azacitidine and panobinostat for 28-day cycles. The frequency and functional relevance of TNFR2(+) Tregs were analyzed subsequently. RESULTS We report that TNFR2(+) Tregs are increased in AML and have a high migration potential toward the bone marrow. Furthermore, we demonstrate that the level of TNFR2(+) Tregs in the peripheral blood and the bone marrow of patients are decreased in vivo after exposure to panobinostat and azacitidine. Reductions in TNFR2(+) Tregs were associated with increases in Interferon (IFN)-γ and interleukin (IL)-2 production by effector T cells within the bone marrow and beneficial clinical responses. In vitro mechanistic studies indicated panobinostat as the primary driver for the reduction of Tregs. CONCLUSIONS Our study provides for the first time, in vivo validation of the ability of panobinostat in combination with azacitidine to suppress prevalent TNFR2(+) Tregs, resulting in clinical benefits within patients with AML.
Collapse
Affiliation(s)
- Chindu Govindaraj
- Authors' Affiliations: Department of Immunology, Central Clinical School; and Department of Clinical Hematology, The Alfred Hospital, Monash University, Melbourne, Victoria, Australia
| | | | | | | | | | | |
Collapse
|
85
|
Preston CC, Maurer MJ, Oberg AL, Visscher DW, Kalli KR, Hartmann LC, Goode EL, Knutson KL. The ratios of CD8+ T cells to CD4+CD25+ FOXP3+ and FOXP3- T cells correlate with poor clinical outcome in human serous ovarian cancer. PLoS One 2013; 8:e80063. [PMID: 24244610 PMCID: PMC3828213 DOI: 10.1371/journal.pone.0080063] [Citation(s) in RCA: 162] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 10/08/2013] [Indexed: 01/07/2023] Open
Abstract
Ovarian cancer is an immune reactive malignancy with a complex immune suppressive network that blunts successful immune eradication. This suppressive microenvironment may be mediated by recruitment or induction of CD4+ regulatory T cells (Tregs). Our study sought to investigate the association of tumor-infiltrating CD4+CD25+FOXP3+ Tregs, and other immune factors, with clinical outcome in serous ovarian cancer patients. We performed immunofluorescence and quantification of intraepithelial tumor-infiltrating triple positive Tregs (CD4+CD25+FOXP3+), as well as CD4+CD25+FOXP3-, CD3+ and CD8+ T cells in tumor specimens from 52 patients with high stage serous ovarian carcinoma. Thirty-one of the patients had good survival (i.e. > 60 months) and 21 had poor survival of < 18 months. Total cell counts as well as cell ratios were compared among these two outcome groups. The total numbers of CD4+CD25+FOXP3+ Tregs, CD4+CD25+FOXP3-, CD3+ and CD8+ cells were not significantly different between the groups. However, higher ratios of CD8+/CD4+CD25+FOXP3+ Treg, CD8+/CD4+ and CD8/CD4+CD25+FOXP3- cells were seen in the good outcome group when compared to the patients with poor outcome. These data show for the first time that the ratios of CD8+ to both CD4+CD25+FOXP3+ Tregs and CD4+CD25+FOXP3- T cells are associated with disease outcome in ovarian cancer. The association being apparent in ratios rather than absolute count of T cells suggests that the effector/suppressor ratio may be a more important indicator of outcome than individual cell count. Thus, immunotherapy strategies that modify the ratio of CD4+CD25+FOXP3+ Tregs or CD4+CD25+FOXP3- T cells to CD8+ effector cells may be useful in improving outcomes in ovarian cancer.
Collapse
Affiliation(s)
- Claudia C. Preston
- Department of Immunology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Matthew J. Maurer
- Department of Health Science Research, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Ann L. Oberg
- Department of Health Science Research, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Daniel W. Visscher
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Kimberly R. Kalli
- Division of Medical Oncology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Lynn C. Hartmann
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Ellen L. Goode
- Department of Health Science Research, Mayo Clinic, Rochester, Minnesota, United States of America
- * E-mail: (ELG); (KLK)
| | - Keith L. Knutson
- Department of Immunology, Mayo Clinic, Rochester, Minnesota, United States of America
- Vaccine and Gene Therapy Institute, Port St. Lucie, Florida, United States of America
- * E-mail: (ELG); (KLK)
| |
Collapse
|
86
|
Zhao W, Berthier CC, Lewis EE, McCune WJ, Kretzler M, Kaplan MJ. The peroxisome-proliferator activated receptor-γ agonist pioglitazone modulates aberrant T cell responses in systemic lupus erythematosus. Clin Immunol 2013; 149:119-32. [PMID: 23962407 PMCID: PMC4184099 DOI: 10.1016/j.clim.2013.07.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/11/2013] [Accepted: 07/12/2013] [Indexed: 12/17/2022]
Abstract
PPAR-γ agonists can suppress autoimmune responses and renal inflammation in murine lupus but the mechanisms implicated in this process remain unclear. We tested the effect of the PPAR-γ agonist pioglitazone in human lupus and control PBMCs with regard to gene regulation and various functional assays. By Affymetrix microarray analysis, several T cell-related pathways were significantly highlighted in pathway analysis in lupus PBMCs. Transcriptional network analysis showed IFN-γ as an important regulatory node, with pioglitazone treatment inducing transcriptional repression of various genes implicated in T cell responses. Confirmation of these suppressive effects was observed specifically in purified CD4+ T cells. Pioglitazone downregulated lupus CD4+ T cell effector proliferation and activation, while it significantly increased proliferation and function of lupus T regulatory cells. We conclude that PPAR-γ agonists selectively modulate CD4+ T cell function in SLE supporting the concept that pioglitazone and related,-agents should be explored as potential therapies in this disease.
Collapse
Affiliation(s)
- Wenpu Zhao
- Division of Rheumatology, Department of Internal Medicine
| | | | - Emily E. Lewis
- Division of Rheumatology, Department of Internal Medicine
| | | | - Matthias Kretzler
- Division of Nephrology, Department of Internal Medicine
- Department of Computational Biology, University of Michigan Medical School, Ann Arbor, MI 48109
| | | |
Collapse
|
87
|
Spranger S, Gajewski T. Rational combinations of immunotherapeutics that target discrete pathways. J Immunother Cancer 2013; 1:16. [PMID: 24829752 PMCID: PMC4019905 DOI: 10.1186/2051-1426-1-16] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 09/12/2013] [Indexed: 12/25/2022] Open
Abstract
An effective anti-tumor immune response requires the coordinated action of the innate and adaptive phases of the immune system. Critical processes include the activation of dendritic cells to present antigens, produce cytokines including type I interferons, and express multiple costimulatory ligands; induction of a productive T cell response within lymph nodes; migration of activated T cells to the tumor microenvironment in response to chemokines and homing receptor expression; and having effector T cells gain access to antigen-expressing tumor cells and maintain sufficient functionality to destroy them. However, tumors can become adept at escaping the immune response, developing multiple mechanisms to disrupt key processes. In general, tumors can be assigned into two different, major groups depending on whether the tumor there is an 'inflamed' or 'non-inflamed' tumor microenvironment. Improvements in our understanding of the interactions between the immune system and cancer have resulted in the development of various strategies to improve the immune-mediated control of tumors in both sub-groups. Categories of major immunotherapeutic intervention include methods to increase the frequency of tumor antigen-specific effector T cells in the circulation, strategies to block or uncouple a range of immune suppressive mechanisms within the tumor microenvironment, and tactics to induce de novo immune inflammation within the tumor microenvironment. The latter may be particularly important for eliciting immune recognition of non-inflamed tumor phenotypes. The premise put forth in this review is that synergistic therapeutic effects in vivo may be derived from combination therapies taken from distinct "bins" based on these mechanisms of action. Early data in both preclinical and some clinical studies provide support for this model. We also suggest that optimal application of these combinations may be aided by appropriate patient selection based on predictive biomarkers.
Collapse
Affiliation(s)
- Stefani Spranger
- Biological Sciences Division, Pathology, The University of Chicago, 929 E. 57th Street, GCIS W-423, Chicago, IL 60637, USA
| | - Thomas Gajewski
- Department of Pathology and Department of Medicine, Section of Hematology/Oncology, The University of Chicago, 5841 S. Maryland Ave., MC2115, Chicago, IL 60637, USA
| |
Collapse
|
88
|
Burocchi A, Colombo MP, Piconese S. Convergences and divergences of thymus- and peripherally derived regulatory T cells in cancer. Front Immunol 2013; 4:247. [PMID: 23986759 PMCID: PMC3753661 DOI: 10.3389/fimmu.2013.00247] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 08/08/2013] [Indexed: 12/18/2022] Open
Abstract
The expansion of regulatory T cells (Treg) is a common event characterizing the vast majority of human and experimental tumors and it is now well established that Treg represent a crucial hurdle for a successful immunotherapy. Treg are currently classified, according to their origin, into thymus-derived Treg (tTreg) or peripherally induced Treg (pTreg) cells. Controversy exists over the prevalent mechanism accounting for Treg expansion in tumors, since both tTreg proliferation and de novo pTreg differentiation may occur. Since tTreg and pTreg are believed as preferentially self-specific or broadly directed to non-self and tumor-specific antigens, respectively, the balance between tTreg and pTreg accumulation may impact on the repertoire of antigen specificities recognized by Treg in tumors. The prevalence of tTreg or pTreg may also affect the outcome of immunotherapies based on tumor-antigen vaccination or Treg depletion. The mechanisms dictating pTreg induction or tTreg expansion/stability are a matter of intense investigation and the most recent results depict a complex landscape. Indeed, selected Treg subsets may display peculiar characteristics in terms of stability, suppressive function, and cytokine production, depending on microenvironmental signals. These features may be differentially distributed between pTreg and tTreg and may significantly affect the possibility of manipulating Treg in cancer therapy. We propose here that innovative immunotherapeutic strategies may be directed at diverting unstable/uncommitted Treg, mostly enriched in the pTreg pool, into tumor-specific effectors, while preserving systemic immune tolerance ensured by self-specific tTreg.
Collapse
Affiliation(s)
- Alessia Burocchi
- Molecular Immunology Unit, Department of Experimental Medicine, Fondazione IRCCS "Istituto Nazionale Tumori," Milan , Italy
| | | | | |
Collapse
|
89
|
Cui J, Wang N, Zhao H, Jin H, Wang G, Niu C, Terunuma H, He H, Li W. Combination of radiofrequency ablation and sequential cellular immunotherapy improves progression-free survival for patients with hepatocellular carcinoma. Int J Cancer 2013; 134:342-51. [PMID: 23825037 DOI: 10.1002/ijc.28372] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 05/16/2013] [Accepted: 06/18/2013] [Indexed: 01/27/2023]
Abstract
Hepatocellular carcinoma (HCC) recurs frequently after minimally invasive therapy. The aim of our study was to observe the efficiency and safety of the combined treatment of radiofrequency ablation (RFA) with cellular immunotherapy (CIT) for HCC patients. In our study, 62 patients with HCC who were treated with radical RFA were divided into two groups: RFA alone (32 patients) and RFA/CIT (30 patients). Autologous mononuclear cells were collected from the peripheral blood and separated by apheresis, and then induced into natural killer (NK) cells, γδT cells and cytokine-induced killer (CIK) cells. These cells were identified by flow cytometry with their specific antibodies and then were infused intravenously to RFA/CIT patients for three or six courses. The tumor recurrent status of these patients was evaluated with computed tomography or magnetic resonance imaging every 3 months after RFA. Progression-free survival (PFS), liver function, viral load and adverse effects were examined. The results implied that PFS was higher in RFA/CIT group than that in RFA group. In RFA/CIT group, six courses had better survival prognosis than three courses. Viral load of hepatitis C was decreased in two of three patients without antiviral therapy in RFA/CIT group, but was increased in RFA group. No significant adverse reaction was found in the patients with CIT. In summary, these preliminary results suggest that combination of sequential CIT with RFA for HCC patients was efficient and safe, and may be helpful in the prevention of the recurrence for the patients with HCC after RFA.
Collapse
Affiliation(s)
- Jiuwei Cui
- Cancer Center of the First Hospital of Jilin University, Changchun, China
| | | | | | | | | | | | | | | | | |
Collapse
|
90
|
Marabelle A, Kohrt H, Sagiv-Barfi I, Ajami B, Axtell RC, Zhou G, Rajapaksa R, Green MR, Torchia J, Brody J, Luong R, Rosenblum MD, Steinman L, Levitsky HI, Tse V, Levy R. Depleting tumor-specific Tregs at a single site eradicates disseminated tumors. J Clin Invest 2013; 123:2447-63. [PMID: 23728179 DOI: 10.1172/jci64859] [Citation(s) in RCA: 295] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 03/14/2013] [Indexed: 01/22/2023] Open
Abstract
Activation of TLR9 by direct injection of unmethylated CpG nucleotides into a tumor can induce a therapeutic immune response; however, Tregs eventually inhibit the antitumor immune response and thereby limit the power of cancer immunotherapies. In tumor-bearing mice, we found that Tregs within the tumor preferentially express the cell surface markers CTLA-4 and OX40. We show that intratumoral coinjection of anti-CTLA-4 and anti-OX40 together with CpG depleted tumor-infiltrating Tregs. This in situ immunomodulation, which was performed with low doses of antibodies in a single tumor, generated a systemic antitumor immune response that eradicated disseminated disease in mice. Further, this treatment modality was effective against established CNS lymphoma with leptomeningeal metastases, sites that are usually considered to be tumor cell sanctuaries in the context of conventional systemic therapy. These results demonstrate that antitumor immune effectors elicited by local immunomodulation can eradicate tumor cells at distant sites. We propose that, rather than using mAbs to target cancer cells systemically, mAbs could be used to target the tumor infiltrative immune cells locally, thereby eliciting a systemic immune response.
Collapse
Affiliation(s)
- Aurélien Marabelle
- Department of Medicine, Division of Oncology, Stanford University, Stanford, California 94305, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
91
|
Chen Y, Zhang H, Liao W, Zhou J, He G, Xie X, Fei R, Qin L, Wei L, Chen H. FOXP3 gene polymorphism is associated with hepatitis B-related hepatocellular carcinoma in China. J Exp Clin Cancer Res 2013; 32:39. [PMID: 23759077 PMCID: PMC3718693 DOI: 10.1186/1756-9966-32-39] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 05/28/2013] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Previous evidence has shown that the FOXP3 gene was involved in the pathogenesis of several tumors; however, the correlation between single nucleotide polymorphisms (SNPs) in the FOXP3 gene and the susceptibility to hepatitis B-related hepatocellular carcinoma (HCC) remains unclear. METHODS We analyzed two SNPs in the FOXP3 gene, rs2280883 and rs3761549, in 392 patients with HCC, 344 patients with chronic hepatitis B (CHB) and 372 matched healthy controls. Genotyping was performed by MALDI-TOF Mass Spectrometry for all donors. RESULTS Compared to healthy controls, HCC patients had higher frequencies of the TT genotype (79.6%) at rs2280883 and the CC genotype (77.6%) at rs3761549 of the FOXP3 gene; CHB patients also had higher frequencies of the TT genotype (74.1%) at rs2280883 and the CC genotype (74.6%) at rs3761549. There were no significant differences in the distribution of FOXP3 genotypes between CHB donors and HCC donors. The TT genotype at rs2280883 was more frequent in patients with HCC than healthy donors (P = 0.01), but no significant difference was observed in this genotype between CHB and healthy donors (P = 0.479). C allele frequency at rs3761549 was higher in HCC patients than healthy donors (P = 0.03), but distribution of this allele was not significantly different between CHB patients and healthy donors (P = 0.11). Stratified analysis showed that the CC genotype at rs3761549 was significantly associated with a high incidence of portal vein tumor thrombus (P = 0.02) and that the TT/CT genotype at rs3761549 was significantly associated with an increased rate of tumor recurrence in HCC patients (P = 0.001). CONCLUSIONS Our results suggested that the FOXP3 gene polymorphisms at rs2280883 and rs3761549 may be associated with hepatitis B-related HCC. At rs3761549, the CC genotype and the TT/CT genotype were associated with a high incidence of portal vein tumor thrombus and tumor recurrence, respectively.
Collapse
Affiliation(s)
- YanHui Chen
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| | - HengHui Zhang
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| | - WeiJia Liao
- Affiliated Hospital of Guilin Medical University, Guilin 541004, P. R. China
| | - JinXue Zhou
- Department of Hepatobiliary and Pancreatic Surgery, Henan Tumor Hospital, Zhengzhou 450008, P. R. China
| | - GaiXia He
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| | - XingWang Xie
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| | - Ran Fei
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| | - LiLing Qin
- Affiliated Hospital of Guilin Medical University, Guilin 541004, P. R. China
| | - Lai Wei
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| | - HongSong Chen
- Peking University People’s Hospital, Peking University Hepatology Institute, No.11 Xizhimen South Street, Beijing 100044, China
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing 100044, P. R. China
| |
Collapse
|
92
|
Lal A, Chan L, DeVries S, Chin K, Scott GK, Benz CC, Chen YY, Waldman FM, Hwang ES. FOXP3-positive regulatory T lymphocytes and epithelial FOXP3 expression in synchronous normal, ductal carcinoma in situ, and invasive cancer of the breast. Breast Cancer Res Treat 2013; 139:381-90. [DOI: 10.1007/s10549-013-2556-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 04/29/2013] [Indexed: 01/20/2023]
|
93
|
Lugade AA, Kalathil S, Miller A, Iyer R, Thanavala Y. High immunosuppressive burden in advanced hepatocellular carcinoma patients: Can effector functions be restored? Oncoimmunology 2013; 2:e24679. [PMID: 24073364 PMCID: PMC3782165 DOI: 10.4161/onci.24679] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 04/12/2013] [Indexed: 12/16/2022] Open
Abstract
The accumulation of immunosuppressive cells and exhausted effector T cells highlight an important immune dysfunction in advanced stage hepatocellular carcinoma (HCC) patients. These cells significantly hamper the efficacy immunotherapies and facilitate HCC progression. We have recently demonstrated that the multipronged depletion of immunosuppressive cells potentially restores effector T-cell function in HCC.
Collapse
Affiliation(s)
- Amit A Lugade
- Department of Immunology; Roswell Park Cancer Institute; Buffalo, NY USA
| | | | | | | | | |
Collapse
|
94
|
Kalathil S, Lugade AA, Miller A, Iyer R, Thanavala Y. Higher frequencies of GARP(+)CTLA-4(+)Foxp3(+) T regulatory cells and myeloid-derived suppressor cells in hepatocellular carcinoma patients are associated with impaired T-cell functionality. Cancer Res 2013; 73:2435-44. [PMID: 23423978 DOI: 10.1158/0008-5472.can-12-3381] [Citation(s) in RCA: 212] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The extent to which T-cell-mediated immune surveillance is impaired in human cancer remains a question of major importance, given its potential impact on the development of generalized treatments of advanced disease where the highest degree of heterogeneity exists. Here, we report the first global analysis of immune dysfunction in patients with advanced hepatocellular carcinoma (HCC). Using multi-parameter fluorescence-activated cell sorting analysis, we quantified the cumulative frequency of regulatory T cells (Treg), exhausted CD4(+) helper T cells, and myeloid-derived suppressor cells (MDSC) to gain concurrent views on the overall level of immune dysfunction in these inoperable patients. We documented augmented numbers of Tregs, MDSC, PD-1(+)-exhausted T cells, and increased levels of immunosuppressive cytokines in patients with HCC, compared with normal controls, revealing a network of potential mechanisms of immune dysregulation in patients with HCC. In dampening T-cell-mediated antitumor immunity, we hypothesized that these processes may facilitate HCC progression and thwart the efficacy of immunotherapeutic interventions. In testing this hypothesis, we showed that combined regimens to deplete Tregs, MDSC, and PD-1(+) T cells in patients with advanced HCC restored production of granzyme B by CD8(+) T cells, reaching levels observed in normal controls and also modestly increased the number of IFN-γ producing CD4(+) T cells. These clinical findings encourage efforts to restore T-cell function in patients with advanced stage disease by highlighting combined approaches to deplete endogenous suppressor cell populations that can also expand effector T-cell populations.
Collapse
Affiliation(s)
- Suresh Kalathil
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | | | | | | | | |
Collapse
|
95
|
Liu CZ, Zhang L, Chang XH, Cheng YX, Cheng HY, Ye X, Fu TY, Chen J, Cui H. Overexpression and immunosuppressive functions of transforming growth factor 1, vascular endothelial growth factor and interleukin-10 in epithelial ovarian cancer. Chin J Cancer Res 2013; 24:130-7. [PMID: 23359769 DOI: 10.1007/s11670-012-0130-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 02/10/2012] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE Transforming growth factor-1 (TGF-β1), vascular endothelial growth factor (VEGF), and interleukin-10 (IL-10) may be critical cytokines in the microenvironment of a tumor, playing roles in immune suppression. This study was conducted to elucidate the roles and immunosuppressive functions of these cytokines in epithelial ovarian cancer (EOC). METHODS The expression levels of TGF-β1, VEGF and IL-10 in malignant tissue were evaluated by immune- histochemistry and compared with corresponding borderline, benign, and tumor-free tissues. Moreover, relationships among the levels of these cytokines and correlations between expression and the prognosis of EOC were analyzed by Pearson rank correlations and multi-factor Logistic regression. The roles of TGF-β1, VEGF, and IL-10 in the immunosuppressive microenvironment of ovarian cancer were studied through dendritic cell (DC) maturation and CD4+CD25+FoxP3+ Treg generation in vitro experiments. RESULTS TGF-β1, VEGF, and IL-10 were expressed in 100%, 74.69%, and 54.96% of EOC patients, respectively. TGF-β1 was an independent prognostic factor for EOC. IL-10 was significantly co-expressed with VEGF. In vitro, VEGF and TGF-β1 strongly interfered with DC maturation and consequently led to immature DCs, which secreted high levels of IL-10 that accumulated around the tumor site. TGF-β1 and IL-10 induced Treg generation without antigen presentation in DCs. CONCLUSIONS TGF-β1, VEGF and IL-10 play important roles in EOC and can lead to frequent immune evasion events.
Collapse
Affiliation(s)
- Chan-Zhen Liu
- Gynecology Oncology Center, Peking University People's Hospital, Beijing 100044, China
| | | | | | | | | | | | | | | | | |
Collapse
|
96
|
Elkord E. Comment on "Expression of Helios in peripherally induced Foxp3+ regulatory T cells". THE JOURNAL OF IMMUNOLOGY 2012; 189:500; author reply 500-1. [PMID: 22773660 DOI: 10.4049/jimmunol.1290033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
97
|
Scurr M, Gallimore A, Godkin A. T cell subsets and colorectal cancer: discerning the good from the bad. Cell Immunol 2012; 279:21-4. [PMID: 23041206 DOI: 10.1016/j.cellimm.2012.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 08/16/2012] [Indexed: 12/18/2022]
Abstract
Tumor-specific T cells must overcome a multitude of suppressive mechanisms to destroy cancerous cells effectively. Furthermore, it appears that the tumor microenvironment facilitates the development of highly immunosuppressive T cells, which may also allow subsequent tumor progression. In colorectal cancer, the relationship between regulatory T cells (e.g. FoxP3(+) Tregs) and tumor prognosis and progression is less clear, despite their well-documented ability to impinge on anti-tumor immune responses. Here we explore our current knowledge of colorectal TIL heterogeneity, deciphering subsets which may be of benefit or detriment.
Collapse
Affiliation(s)
- Martin Scurr
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | | | | |
Collapse
|
98
|
Predictors of immunosuppressive regulatory T lymphocytes in healthy women. J Cancer Epidemiol 2012; 2012:191090. [PMID: 22969801 PMCID: PMC3433139 DOI: 10.1155/2012/191090] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Accepted: 07/12/2012] [Indexed: 01/04/2023] Open
Abstract
Immunosuppressive regulatory T (Treg) cells play an important role in antitumor immunity, self-tolerance, transplantation tolerance, and attenuation of allergic response. Higher proportion of Treg cells has been observed in peripheral blood of cancer cases compared to controls. Little is known about potential epidemiological predictors of Treg cell levels in healthy individuals. We conducted a cross-sectional study including 75 healthy women, between 20 and 80 years of age, who participated in the Data Bank and BioRepository (DBBR) program at Roswell Park Cancer Institute (RPCI), Buffalo, NY, USA. Peripheral blood levels of CD4+CD25+FOXP3+ Treg cells were measured using flow cytometric analysis. A range of risk factors was evaluated using Wilcoxon Rank-Sum test, Kruskal-Wallis test, and linear regression. Age, smoking, medications for treatment of osteoporosis, postmenopausal status, body mass index (BMI), and hormone replacement therapy (HRT) were found to be significant positive predictors of Treg cell levels in peripheral blood (P ≤ 0.05). Higher education, exercise, age at first birth, oral contraceptives, and use of Ibuprofen were found be significant (P < 0.05) negative predictors of Treg levels. Thus, various epidemiological risk factors might explain interindividual variation in immune response to pathological conditions, including cancer.
Collapse
|
99
|
Zhao Y, Wu K, Cai K, Zhai R, Tao K, Wang G, Wang J. Increased numbers of gastric-infiltrating mast cells and regulatory T cells are associated with tumor stage in gastric adenocarcinoma patients. Oncol Lett 2012. [PMID: 23205096 DOI: 10.3892/ol.2012.830] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Mast cells (MCs) and regulatory T cells (Tregs) are the important components of the inflammatory infiltrating leukocytes in most malignant tumors. Our study was designed to investigate the infiltrating correlation between MCs and Tregs and clarify their prognostic significance in gastric cancer (GC). A total of 60 fresh GC tissues were collected and tumor-infiltrating leukocytes were isolated by gradient centrifugation. Tryptase and Foxp3 were used as markers for MCs and Tregs, respectively. The expression of tryptase and Foxp3 was determined in tumor-infiltrating leukocytes using flow cytometry. The expression of tryptase and Foxp3 were positively correlated. The increased infiltration of MCs correlated significantly with advanced stage of GC. The infiltration of MCs into the tumor may increase the number of Tregs. Tryptase is a promising marker to stratify GC patients into different risk groups.
Collapse
Affiliation(s)
- Yibin Zhao
- Department of Gastrointestinal Surgery and Minimal Invasive Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, P.R. China
| | | | | | | | | | | | | |
Collapse
|
100
|
|