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Del M, Illac C, Morisseau M, Angeles MA, Ducassou A, Betrian S, Bataillon G, Ferron G, Chantalat E, Gabiache E, Martinez A. Intraepithelial tumor-infiltrating lymphocytes shape loco-regional PET/CT spread of locally advanced cervical cancer. Int J Gynecol Cancer 2024; 34:490-496. [PMID: 38471676 DOI: 10.1136/ijgc-2023-004677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Data suggest an association between positron emission tomography/CT (PET/CT) metabolic metrics and tumor microenvironment in several malignancies, and a potential role of PET/CT to monitor response to immunotherapy. OBJECTIVE To evaluate the correlation between tumor loco-regional extension and tumor-infiltrating lymphocyte infiltration in locally advanced cervical cancer prior to concurrent chemo-radiotherapy.The secondary objective was to assess the association between tumor-infiltrating lymphocytes and PET/CT metabolic metrics. METHODS Patients with locally advanced cervical cancer and negative para-aortic extensions on PET/CT were included. Two senior nuclear medicine physicians specializing in gynecologic oncology reviewed all PET/CT exams, and extracted tumor maximum standardized uptake value, metabolic tumor volume, and total lesion glycolysis, as well as pelvic lymph node involvement. One senior gynecologic oncology pathologist assessed intraepithelial tumor-infiltrating lymphocytes and stromal tumor-infiltrating lymphocytes. Intraepithelial tumor-infiltrating lymphocytes were categorized following previous studies as <1% and >1%. The cut-off for stromal tumor-infiltrating lymphocytes was chosen empirically: intermediate <60% and high >60%. RESULTS 86 patients were included. Intraepithelial tumor-infiltrating lymphocytes were not significantly associated with tumor metabolic metrics. Intraepithelial tumor-infiltrating lymphocytes were not significantly associated with maximum standard uptake value (p=0.16), or metabolic tumor volume (p=0.19). Tumors with <1% intraepithelial tumor-infiltrating lymphocytes score were associated with a higher MRI tumor size (≥ median) (63.3% vs 39.3%, p=0.04). Patients with pelvic lymph node uptake were significantly more frequent in patients with high stromal tumor-infiltrating lymphocytes score (≥60%) (61.5% vs 31.7%, p=0.009). CONCLUSIONS Poor or absent intraepithelial tumor-infiltrating lymphocytes were associated with more advanced disease at diagnosis and larger tumor size. Tumor-infiltrating lymphocytes were not associated with tumor metabolic activity. Intraepithelial and stroma tumor-infiltrating lymphocytes are not redundant and should be assessed separately. Further work is needed to evaluate the association between tumor metabolic profile and immune populations, including different T-cell subtypes for patient selection for immunotherapy strategies.
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Affiliation(s)
- Mathilde Del
- Department of Surgical Oncology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
| | - Claire Illac
- Department of Pathology, Institut Claudius Regaud, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
| | - Mathilde Morisseau
- Department of Biostatistics, Institut Claudius Regaud, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
| | - Martina Aida Angeles
- Department of Surgical Oncology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
| | - Anne Ducassou
- Radiation Oncology and Brachytherapy Department, Institut Universitaire du Cancer de Toulouse - Oncopole, Institut Claudius Regaud, Toulouse, France
| | - Sarah Betrian
- Department of Medical Oncology, Institut Universitaire du Cancer de Toulouse, Toulouse, France
| | - Guillaume Bataillon
- Department of Anatomopathology, Toulouse University Cancer Institute, Toulouse, France
| | - Gwenael Ferron
- Department of Surgical Oncology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
- Team 19, ONCOSARC - Oncogenesis of Sarcomas, Cancer Research Center of Toulouse (CRCT) - INSERM UMR 1037, Toulouse, France
| | - Elodie Chantalat
- Department of Surgical Oncology, University Hospital Centre Toulouse IUC Oncopole CHU Division, Toulouse, France
| | - Erwan Gabiache
- Department of Nuclear Medicine, Cancer University Institute Toulouse Oncopole, Toulouse, France
| | - Alejandra Martinez
- Department of Surgical Oncology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
- Team 1, Tumor Immunology and Immunotherapy, Cancer Research Center of Toulouse (CRCT) - INSERM UMR 1037, Toulouse, France
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Monsrud AL, Avadhani V, Mosunjac MB, Flowers L, Krishnamurti U. Programmed Death Ligand-1 (PD-L1) Expression in Cervical Squamous Cell Carcinoma: Does it Correlate With Outcomes? Int J Gynecol Pathol 2023; 42:535-543. [PMID: 37562018 DOI: 10.1097/pgp.0000000000000975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Cervical cancer is one of the most common gynecological malignancies. Upregulation of programmed death ligand-1 (PD-L1), an immunoregulatory protein, is associated with an adverse outcomes in several malignancies. Most studies evaluating PD-L1 expression in cervical squamous cell carcinoma (CSCC) lack data on outcomes. In this study, we correlate PD-L1 expression with clinicopathologic factors and clinical outcomes in invasive CSCC. Seventy-three cases of CSCC from 2010 to 2018 were immunostained for PD-L1. A combined positive score (CPS) of ≥1 and ≥10 was correlated with age, stage, and survival outcomes. Kaplan-Meier curves for progression-free survival and overall survival were plotted and compared using the log-rank test. Cox regression analysis was performed to identify significant prognostic factors (2-tailed P <0.05 was considered statistically significant). With CPS ≥1 or ≥10 as the cut-off, PD-L1 was positive in 52/73 (71.2%) and 23/73 (31.5%) of cases, respectively. PD-L1 positive patients present at a higher stage of disease, especially those with CPS ≥10. With CPS of ≥10 as the cut-off, the 5-yr progression-free survival and 5-yr overall survival were significantly lower ( P = 0.034 and 0.012, respectively). Only stage was statistically significant for worse overall survival on multivariate analysis. PD-L1 positive patients present at a higher stage of disease, and stage is an independent prognostic indicator for adverse outcomes in CSCC. This study highlights the potential of PD-L1 targeted therapy in patients with CSCC.
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Wild CM, Garrido F, Dannecker C, Köpke MB, Chateau MC, Boissière-Michot F, Heidegger HH, Vattai A, Kessler M, Jeschke U, Cavaillès V. Prognostic Relevance of Tumor-Infiltrating Immune Cells in Cervix Squamous Cell Carcinoma. Cancers (Basel) 2023; 15:4952. [PMID: 37894319 PMCID: PMC10605287 DOI: 10.3390/cancers15204952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
There exists a variety of studies about tumor-infiltrating immune cells (TIICs) in cervical cancer, but their prognostic value in correlation with the histopathological subtype has never been investigated. Therefore, the aim of this study was to quantify TIICs in a panel of 238 sporadic cervical cancers and investigate the correlation with cervical cancer subtype and patient survival. TIICs levels were significantly increased in the subgroup of CSCC (191 samples) in comparison to CAC (47 samples). In CSCC, TIICs' infiltration showed a negative correlation with age, FIGO stage and with the histone protein modification H3K4me3. Moreover, in CAC, it was positively correlated with p16 and with the glucocorticoid receptor and inversely correlated with the MDM2 protein and with H3K4me3. Interestingly, immune infiltration was an independent positive prognosticator for disease-free survival (DFS) in patients with CSCC, those bearing tumors with the strongest TIICs infiltration showing the better DFS. Altogether, the present study provides a differentiated overview of the relations between TIIC levels and prognosis in patients with CSCC vs. patients with CAC.
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Affiliation(s)
- Carl Mathis Wild
- Department of Obstetrics and Gynecology, University Hospital Augsburg, Stenglinstrasse 2, 86156 Augsburg, Germany; (C.M.W.); (F.G.); (C.D.); (M.B.K.)
- Department of Data Management and Clinical Decision Support, Faculty of Medicine, University of Augsburg, 86159 Augsburg, Germany
| | - Fabian Garrido
- Department of Obstetrics and Gynecology, University Hospital Augsburg, Stenglinstrasse 2, 86156 Augsburg, Germany; (C.M.W.); (F.G.); (C.D.); (M.B.K.)
| | - Christian Dannecker
- Department of Obstetrics and Gynecology, University Hospital Augsburg, Stenglinstrasse 2, 86156 Augsburg, Germany; (C.M.W.); (F.G.); (C.D.); (M.B.K.)
| | - Melitta B. Köpke
- Department of Obstetrics and Gynecology, University Hospital Augsburg, Stenglinstrasse 2, 86156 Augsburg, Germany; (C.M.W.); (F.G.); (C.D.); (M.B.K.)
| | - Marie-Christine Chateau
- Translational Research Unit, Montpellier Cancer Institute Val d’Aurelle, 208 rue des Apothicaires, F-34298 Montpellier, France; (M.-C.C.); (F.B.-M.)
| | - Florence Boissière-Michot
- Translational Research Unit, Montpellier Cancer Institute Val d’Aurelle, 208 rue des Apothicaires, F-34298 Montpellier, France; (M.-C.C.); (F.B.-M.)
| | - Helene H. Heidegger
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany; (H.H.H.); (A.V.); (M.K.)
| | - Aurelia Vattai
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany; (H.H.H.); (A.V.); (M.K.)
| | - Mirjana Kessler
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany; (H.H.H.); (A.V.); (M.K.)
| | - Udo Jeschke
- Department of Obstetrics and Gynecology, University Hospital Augsburg, Stenglinstrasse 2, 86156 Augsburg, Germany; (C.M.W.); (F.G.); (C.D.); (M.B.K.)
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany; (H.H.H.); (A.V.); (M.K.)
| | - Vincent Cavaillès
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Université Montpellier, CNRS, F-34298 Montpellier, France;
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Trujillo-Cirilo L, Weiss-Steider B, Vargas-Angeles CA, Corona-Ortega MT, Rangel-Corona R. Immune microenvironment of cervical cancer and the role of IL-2 in tumor promotion. Cytokine 2023; 170:156334. [PMID: 37598478 DOI: 10.1016/j.cyto.2023.156334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 07/06/2023] [Accepted: 08/11/2023] [Indexed: 08/22/2023]
Abstract
The tumor microenvironment (TME) is a heterogeneous mixture of resident and tumor cells that maintain close communication through their secretion products. The composition of the TME is dynamic and complex among the different types of cancer, where the immune cells play a relevant role in the elimination of tumor cells, however, under certain circumstances they contribute to tumor development. In cervical cancer (CC) the human papilloma virus (HPV) shapes the microenvironment in order to mediate persistent infections that favors transformation and tumor development. Interleukin-2 (IL-2) is an important TME cytokine that induces CD8+ effector T cells and NKs to eliminate tumor cells, however, IL-2 can also suppress the immune response through Treg cells. Recent studies have shown that CC cells express the IL-2 receptor (IL-2R), that are induced to proliferate at low concentrations of exogenous IL-2 through alterations in the JAK/STAT pathway. This review provides an overview of the main immune cells that make up the TME in CC, as well as the participation of IL-2 in the tumor promotion. Finally, it is proposed that the low density of IL-2 produced by immunocompetent cells is used by tumor cells through its IL-2R as a mechanism to proliferate simultaneously depleting this molecule in order to evade immune response.
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Affiliation(s)
- Leonardo Trujillo-Cirilo
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico.
| | - Benny Weiss-Steider
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
| | - Carlos Adrian Vargas-Angeles
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
| | - Maria Teresa Corona-Ortega
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
| | - Rosalva Rangel-Corona
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
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Wang L, Yi S, Teng Y, Li W, Cai J. Role of the tumor microenvironment in the lymphatic metastasis of cervical cancer (Review). Exp Ther Med 2023; 26:486. [PMID: 37753293 PMCID: PMC10518654 DOI: 10.3892/etm.2023.12185] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/15/2023] [Indexed: 09/28/2023] Open
Abstract
Lymphatic metastasis is the primary type of cervical cancer metastasis and is associated with an extremely poor prognosis in patients. The tumor microenvironment primarily includes cancer-associated fibroblasts, tumor-associated macrophages, myeloid-derived suppressor cells, immune and inflammatory cells, and blood and lymphatic vascular networks, which can promote the establishment of lymphatic metastatic sites within immunosuppressive microenvironments or promote lymphatic metastasis by stimulating lymphangiogenesis and epithelial-mesenchymal transformation. As the most important feature of the tumor microenvironment, hypoxia plays an essential role in lymph node metastasis. In this review, the known mechanisms of hypoxia, and the involvement of stromal components and immune inflammatory cells in the tumor microenvironment of lymphatic metastasis of cervical cancer are discussed. Additionally, a summary of the clinical trials targeting the tumor microenvironment for the treatment of cervical cancer is provided, emphasizing the potential and challenges of immunotherapy.
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Affiliation(s)
- Lufang Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Shuyan Yi
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yun Teng
- Department of Laboratory Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine; Key Laboratory of Clinical In Vitro Diagnostic Techniques of Zhejiang Province; Institute of Laboratory Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Wenhan Li
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jing Cai
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Kumar V, Bauer C, Stewart JH. TIME Is Ticking for Cervical Cancer. BIOLOGY 2023; 12:941. [PMID: 37508372 PMCID: PMC10376148 DOI: 10.3390/biology12070941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/23/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023]
Abstract
Cervical cancer (CC) is a major health problem among reproductive-age females and comprises a leading cause of cancer-related deaths. Human papillomavirus (HPV) is the major risk factor associated with CC incidence. However, lifestyle is also a critical factor in CC pathogenesis. Despite HPV vaccination introduction, the incidence of CC is increasing worldwide. Therefore, it becomes critical to understand the CC tumor immune microenvironment (TIME) to develop immune cell-based vaccination and immunotherapeutic approaches. The current article discusses the immune environment in the normal cervix of adult females and its role in HPV infection. The subsequent sections discuss the alteration of different immune cells comprising CC TIME and their targeting as future therapeutic approaches.
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Affiliation(s)
- Vijay Kumar
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA 70012, USA
| | - Caitlin Bauer
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA 70012, USA
| | - John H Stewart
- Department of Interdisciplinary Oncology, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA 70012, USA
- Louisiana Children's Medical Center Cancer Center, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Science Center (LSUHSC), 1700 Tulane Avenue, New Orleans, LA 70012, USA
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SPP1 is a biomarker of cervical cancer prognosis and involved in immune infiltration. REV ROMANA MED LAB 2022. [DOI: 10.2478/rrlm-2022-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Background: Cervical cancer is the fourth commonly occurred cancer in women around the world. However, it still lacks effective approaches to improve current prognosis of cervical cancer and prevent metastasis.
Objective: We aim to discover a promising biomarker for cervical cancer prognosis by utilizing bioinformatics analysis.
Methods: Gene expression was analyzed by the datasets from The Cancer Genome Atlas Program-Cervical squamous cell carcinoma and endocervical adenocarcinoma (TCGA-CESC) dataset and three independent patient cohort datasets. Biological process and pathway enrichment were performed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analysis. Immune infiltration was analyzed through TISIDB tool.
Results: SPP1 gene was highly expressed in cervical cancer tissues. In addition, SPP1 was positively correlated to advanced CESC stages and nodal metastasis status. SPP1 co-expressed genes are mainly enriched in immunological processes. Furthermore, SPP1 expression is involved in immune infiltration level, in which several tumour infiltrating lymphocytes are correlated with SPP1. SPP1 overexpression promotes a wide spectrum of chemokines and immunoinhibiors which contribute to CESC progression.
Conclusions: SPP1 is a promising biomarker and a prognostic factor of CESC. Tumour infiltrating lymphocytes are also possibly regulated by SPP1. Our study suggests that investigation on SPP1 is a new direction for CESC therapy.
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Tang Y, Zhang AXJ, Chen G, Wu Y, Gu W. Prognostic and therapeutic TILs of cervical cancer-Current advances and future perspectives. MOLECULAR THERAPY-ONCOLYTICS 2021; 22:410-430. [PMID: 34553029 PMCID: PMC8430272 DOI: 10.1016/j.omto.2021.07.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cervical cancer is a top lethal cancer for women worldwide. Although screening and vaccination programs are available in many countries, resulting in the decline of new cases, this is not true for developing countries where there are many new cases and related deaths. Cancer immunotherapy through adaptive cell therapy (ACT) has been applied in clinics, but now much attention is focused on autogenic tumor-infiltrating lymphocyte (TIL)-based therapy, which has shown more specificity and better ability to inhibit tumor growth. Data from melanoma and cervical cancers confirm that tumor-specific T cells in TILs can be expanded for more specific and effective ACT. Moreover, TILs are derived from individual patients and are ready to home back to kill tumor cells after patient infusion, aligning well with personalized and precision medicine. In addition to therapy, TIL cell types and numbers are good indicators of host immune response to the tumor, and thus they have significant values in prognosis. Because of the special relationship with human papillomavirus (HPV) infection, cervical cancer has some specialties in TIL-based prognosis and therapy. In this review, we summarize the recent advances in the prognostic significance of TILs and TIL-based therapy for cervical cancer and discuss related perspectives.
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Affiliation(s)
- Ying Tang
- Institute of Tumor, Guangzhou University of Chinese Medicine, Guangzhou, China.,Gillion ITM Research Institute, Guangzhou Hongkeyuan, Guangzhou, China
| | - Anne X J Zhang
- Gillion ITM Research Institute, Guangzhou Hongkeyuan, Guangzhou, China
| | - Guangyu Chen
- Gillion ITM Research Institute, Guangzhou Hongkeyuan, Guangzhou, China
| | - Yanheng Wu
- Gillion ITM Research Institute, Guangzhou Hongkeyuan, Guangzhou, China
| | - Wenyi Gu
- Gillion ITM Research Institute, Guangzhou Hongkeyuan, Guangzhou, China.,Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
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Litwin TR, Irvin SR, Chornock RL, Sahasrabuddhe VV, Stanley M, Wentzensen N. Infiltrating T-cell markers in cervical carcinogenesis: a systematic review and meta-analysis. Br J Cancer 2021; 124:831-841. [PMID: 33257839 PMCID: PMC7884592 DOI: 10.1038/s41416-020-01184-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 10/22/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The host adaptive immune response helps determine which cervical HPV infections persist and progress to precancer and cancer, and systematic characterisation of T-cell infiltration would help inform key steps in cervical carcinogenesis. METHODS A systematic review and meta-analysis were conducted of infiltrating T-cells in normal cervix, low-grade lesions, high-grade lesions, and invasive cancers including epithelial, stromal, and total tissue and the following markers: CD3, CD4, CD8, FoxP3, CD25, and the CD4:CD8 ratio. An additional qualitative review summarised longitudinal data on associations between infiltrating T-cells and cervical disease persistence, regression, progression, or prognosis. RESULTS There were fewer CD3+, CD4+, and CD8+ cells in cervical lesions and more cells in cancers compared to normal epithelium. FoxP3 and CD25+ regulatory T-cell infiltration is high in persistent and precancerous lesions, and longitudinal data show improved outcomes with lower regulatory T-cell levels. CONCLUSIONS Successful immune evasion may reduce T-cell infiltration in HPV infected and precancerous epithelium, while invasive cancers are highly immunogenic, and regulatory T-cell infiltration increases with cervical disease progression. Understanding these factors may have prognostic value and could aid in novel treatment development and clinical guidelines, but published data are highly heterogeneous and leave important gaps to be filled by future studies.
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Affiliation(s)
- Tamara R Litwin
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
| | - Sarah R Irvin
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Rebecca L Chornock
- Department of Obstetrics and Gynecology, MedStar Washington Hospital Center, Washington, DC, USA
| | - Vikrant V Sahasrabuddhe
- Breast and Gynecologic Cancer Research Group, Division of Cancer Prevention, National Cancer Institute, Rockville, MD, USA
| | | | - Nicolas Wentzensen
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
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Semik-Gurgul E. Molecular approaches to equine sarcoids. Equine Vet J 2020; 53:221-230. [PMID: 32654178 DOI: 10.1111/evj.13322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/09/2020] [Accepted: 07/02/2020] [Indexed: 11/29/2022]
Abstract
Sarcoids are the most commonly diagnosed skin tumours in equines. Bovine papillomaviruses (BPVs) are the primary causative agent of sarcoids. There has been intensive research to discover the molecular mechanisms that may contribute to the aetiopathogenesis of this disease and tumour suppressors and proto-oncogenes known to play a role in human neoplastic conditions have been investigated in equine sarcoids. Current approaches include the identification of gene expression profiles, characterising sarcoid and normal skin tissues, and an assessment of epigenetic alterations such as microRNA differential expression and DNA methylation status. This review focuses on selected groups of genes that contribute to the molecular mechanisms of sarcoid formation. These genes have the potential to complement current clinical examinations of equine sarcoid disease in diagnosis, prognosis, therapeutic response and screening.
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Affiliation(s)
- Ewelina Semik-Gurgul
- Department of Animal Molecular Biology, National Research Institute of Animal Production, Balice, Poland
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Che Y, Yang Y, Suo J, An Y, Wang X. Induction of systemic immune responses and reversion of immunosuppression in the tumor microenvironment by a therapeutic vaccine for cervical cancer. Cancer Immunol Immunother 2020; 69:2651-2664. [PMID: 32607768 DOI: 10.1007/s00262-020-02651-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 06/19/2020] [Indexed: 01/10/2023]
Abstract
Cervical cancer is the most common malignant tumor of the genital tract in females worldwide. Persistent human papillomavirus (HPV) infection is closely associated with the occurrence of cervical cancer. No licensed therapeutic HPV vaccines for cervical cancer are currently available. In our previous study, we demonstrated that the vaccine containing the HPV16 E7 43-77 peptide and the adjuvant unmethylated cytosine-phosphate-guanosine oligodeoxynucleotide elicited significant prophylactic and therapeutic effects on cervical cancer. In the current study, we comprehensively evaluated the effect of the vaccine on systemic immune responses and the tumor microenvironment (TME) in a mouse model of cervical cancer. The results showed that the administration of the vaccine induced a significant increase in splenic IFN-γ-producing CD4 and CD8 T cells as well as tumor infiltrating CD4 and CD8 T cells. Moreover, marked decreases in splenic MDSCs and Tregs as well as intratumoral MDSCs, Tregs and type 2-polarized tumor-associated macrophages were observed in the vaccine group. The profile of cytokines, chemokines and matrix metalloproteinases (MMPs) in the TME revealed significantly increased expression of IL-2, IL-12, TNF-α, IFN-γ, CCL-20, CXCL-9, CXCL-10 and CXCL-14 and decreased expression of IL-6, IL-10, TGF-β, CCL-2, CCL-3, CCL-5, CXCL-8, MMP-2, MMP-9 and VEGF in the vaccine group. The expression of the cell proliferation indicator Ki67, apoptosis regulatory protein p53 and angiogenesis marker CD31 was significantly decreased in the vaccine group. In conclusion, the vaccine reversed tolerogenic systemic and local TME immunosuppression and induced robust antitumor immune responses, which resulted in the inhibition of established implanted tumors.
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Affiliation(s)
- Yuxin Che
- Department of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China
| | - Yang Yang
- Department of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China
| | - Jinguo Suo
- Department of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China
| | - Yujing An
- School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China
| | - Xuelian Wang
- Department of Microbiology and Parasitology, College of Basic Medical Science, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China.
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Cao M, Wang Y, Wang D, Duan Y, Hong W, Zhang N, Shah W, Wang Y, Chen H. Increased High-Risk Human Papillomavirus Viral Load Is Associated With Immunosuppressed Microenvironment and Predicts a Worse Long-Term Survival in Cervical Cancer Patients. Am J Clin Pathol 2020; 153:502-512. [PMID: 31819948 DOI: 10.1093/ajcp/aqz186] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES To evaluate the correlation between tumor-infiltrating lymphocytes (TILs) and the viral load of high-risk human papillomavirus (HR-HPV) in cervical cancer patients. METHODS A total of 62 cervical cancer patients were recruited during 1993-1994 and assigned into four groups treated with radiotherapy alone or radiotherapy combined with chemotherapy and/or thermotherapy. Ki67+ tumor cells, CD4+, CD8+, FoxP3+, OX40+ and granzyme B+ TILs were detected by immunohistochemistry. The viral load of HR-HPV in biopsy tissues before therapy was detected by in situ hybridization. RESULTS The patients with high HPV viral load showed a significantly lower 15-year survival rate and an advanced International Federation of Gynecology and Obstetrics (FIGO) stage and increased recurrence rate. The distribution of Ki67+ tumor cells, FoxP3+ TILs, and CD8+/FoxP3+ ratio was obviously different between low and high HPV viral load groups. A worse clinical outcome was also implicated with increased HPV viral load tested by Cox regression analysis. CONCLUSIONS Patients with increased HR-HPV viral load tend to be resistant to therapy with decreased immune surveillance in the immune microenvironment. Thus, HR-HPV viral load would influence the local immune microenvironment, and then further affect the survival of cervical cancer patients.
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Affiliation(s)
- Meng Cao
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Shaanxi, China
| | - Ying Wang
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
- Institute for Molecular Radiobiology of Cancer, First Affiliated Hospital of Xi’an Jiaotong University, Shaanxi, China
| | - Depu Wang
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
| | - Yixin Duan
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
| | - Wei Hong
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
- Institute for Molecular Radiobiology of Cancer, First Affiliated Hospital of Xi’an Jiaotong University, Shaanxi, China
| | - Nana Zhang
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
| | - Walayat Shah
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
- Institute of Basic Medical Sciences, Khyber Medical University, Khyber Pakhtunkhwa, Pakistan
| | - Yili Wang
- Institute for Cancer Research, School of Basic Medical Science, Xi’an Jiaotong University, Shaanxi, China
- Institute for Molecular Radiobiology of Cancer, First Affiliated Hospital of Xi’an Jiaotong University, Shaanxi, China
| | - Hongwei Chen
- Institute for Molecular Radiobiology of Cancer, First Affiliated Hospital of Xi’an Jiaotong University, Shaanxi, China
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Alves JJP, De Medeiros Fernandes TAA, De Araújo JMG, Cobucci RNO, Lanza DCF, Bezerra FL, Andrade VS, Fernandes JV. Th17 response in patients with cervical cancer. Oncol Lett 2018; 16:6215-6227. [PMID: 30405758 PMCID: PMC6202464 DOI: 10.3892/ol.2018.9481] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 08/07/2018] [Indexed: 12/21/2022] Open
Abstract
Persistent infection by high-risk human papillomavirus (HR-HPV) is the main risk factor for uterine cervical cancer (UCC). However, viral infection alone is not sufficient for the development and progression of premalignant cervical lesions for cancer. In previous years it has been suggested that the adaptive immune response triggered by the differentiation of naïve helper T cells in Th17 cells may serve an important role in disease development. It has been hypothesized that Th17 cells may be involved in the promotion of UCC, as high levels of interleukin 17 (IL17) expression have been detected in the mucosa of the uterine cervix of patients affected by the disease. However, the role of Th17 cells in the tumor development and progression remains unclear. It is believed that the immune response of the Th17 type during persistent infection of the genital tract with HR-HPV triggers chronic inflammation with a long duration with the production of IL17 and other pro-inflammatory cytokines, creating a favorable environment for tumor development. These cytokines are produced by immune system cells in addition to tumor cells and appear to function by modulating the host immune system, resulting in an immunosuppressive response as opposed to inducing an effective protective immune response, thus contributing to the growth and progression of the tumor. In the present review, the latest advances are presented about the function of Th17 cells and the cytokines produced by them in the development and progression of UCC.
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Affiliation(s)
- Jayra Juliana Paiva Alves
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil
| | | | | | | | | | - Fabiana Lima Bezerra
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil
| | - Vânia Sousa Andrade
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil
| | - José Veríssimo Fernandes
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal, RN 59072-970, Brazil
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14
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Longoria TC, Tewari KS. Pharmacologic management of advanced cervical cancer: antiangiogenesis therapy and immunotherapeutic considerations. Drugs 2016; 75:1853-65. [PMID: 26474780 DOI: 10.1007/s40265-015-0481-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
As a consequence of disparities in access to and utilization of preventative healthcare, the incidence and death rates from cervical cancer remain substantial in the face of indisputable evidence that screening saves lives. While disparities persist, there will be an urgent need for research into the treatment of advanced forms of this disease. In this review, we explore the evolution of the treatment of metastatic, recurrent, and persistent cervical cancer from cytotoxic agents to targeted therapy. We discuss why targeted therapies are unlikely to produce sustained responses alone but may be more successful in combination with immunotherapies. We also provide a rationale for the potential next phase in treatment of this challenging disease-combined therapy with antiangiogenic agents and immune checkpoint inhibitors. In doing so, we highlight recent paradigm shifts within cancer therapeutics, including the shift in focus from the tumor cell itself to the tumor microenvironment, and from stimulating the immune system to inhibiting the inhibitors of an adequate immune response.
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Affiliation(s)
- Teresa C Longoria
- University of California, Irvine Medical Center, 101 The City Drive South, Bldg 56, Orange, CA, 92868, USA
| | - Krishnansu S Tewari
- University of California, Irvine Medical Center, 101 The City Drive South, Bldg 56, Orange, CA, 92868, USA.
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15
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Chen X, Zhu B, Luo Y, Zhang D, Zhang L, Zhu H, Hao C, Guo Y, Liu H. Interleukin-28B Plays a Therapeutic Role on Mouse U14 Cervical Cancer Cells by Down-Regulating CD4+CD25+FoxP3+Regulatory T Cells In Vivo. Int J Gynecol Cancer 2015; 25:1369-76. [PMID: 26270121 DOI: 10.1097/igc.0000000000000528] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
AIM To investigate the immunotherapeutic effectiveness of adenoviral vector expressing mouse interleukin (IL)-28B (Ad-mIL-28B) against cervical cancer and its mechanism. METHOD U14 cervical cancer cell-bearing mice were treated with Ad-mIL-28B. Meanwhile, whole cell vaccine was prepared by repeated freezing and thawing U14 cells. Then CD4⁺CD25⁺FoxP3⁺regulatory T (Treg) cells were evaluated by flow cytometry. Tumor volume and metastasis in BALB/c and C57BL/6j mice were detected. RESULTS Ad-mIL-28B treatment significantly decreased the number of CD4⁺CD25⁺FoxP3⁺Treg cells. Subsequently, there was a significant decrease in the size of tumor tissue and the numbers of heteromorphic tumor cells. The tumor metastasis in the lung and liver of the Ad-mIL-28B group also decreased. However, there was no therapeutic effect observed for whole cell vaccine on U14 tumor-bearing mice. CONCLUSION Interleukin-28B can inhibit the growth and metastasis of cervical cancer in U14 tumor-bearing mice by down-regulating Treg cells.
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Affiliation(s)
- Xiaoyun Chen
- *Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Lanzhou University, Lanzhou, Gansu Province, China; Institutes of †Pathogen Biology and ‡Immunology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu Province, China; §Institute of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu Province, China; and ∥Department of Obstetrics and Gynecology, Gansu Provincial Hospital, Lanzhou, Gansu Province, China
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16
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Phaëton R, Gutierrez J, Jiang Z, Karabakhtsian RG, Albanese J, Sunkara J, Fisher DR, Goldberg GL, Dadachova E. Naive and radiolabeled antibodies to E6 and E7 HPV-16 oncoproteins show pronounced antitumor activity in experimental cervical cancer. Immunotherapy 2015; 7:631-40. [PMID: 26098137 PMCID: PMC4524293 DOI: 10.2217/imt.15.18] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND In spite of profound reduction in incidence, cervical cancer claims >275,000 lives annually. Previously we demonstrated efficacy and safety of radioimmunotherapy directed at HPV16 E6 oncoprotein in experimental cervical cancer. MATERIALS & METHODS We undertook a direct comparison of targeting E7 and E6 oncoproteins with specific (188)Rhenium-labeled monoclonal antibodies in CasKi subcutaneous xenografts of cervical cancer cells in mice. RESULTS The most significant tumor inhibition was seen in radioimmunotherapy-treated mice, followed by the unlabeled monoclonal antibodies to E6 and E7. No hematological toxicity was observed. Immunohistochemistry suggests that the effect of unlabeled antibodies is C3 complement mediated. CONCLUSION We have demonstrated for the first time that radioimmunotherapy directed toward E7 oncoprotein inhibits experimental tumors growth, decreases E7 expression and may offer a novel approach to cervical cancer therapy.
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MESH Headings
- Animals
- Antibodies, Neoplasm/immunology
- Antibodies, Neoplasm/pharmacology
- Antibodies, Viral/immunology
- Antibodies, Viral/pharmacology
- Female
- Human papillomavirus 16/immunology
- Humans
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasms, Experimental/immunology
- Neoplasms, Experimental/radiotherapy
- Neoplasms, Experimental/virology
- Oncogene Proteins, Viral/immunology
- Papillomavirus E7 Proteins/immunology
- Papillomavirus Infections/immunology
- Papillomavirus Infections/therapy
- Radioimmunotherapy
- Repressor Proteins/immunology
- Uterine Cervical Neoplasms/immunology
- Uterine Cervical Neoplasms/radiotherapy
- Uterine Cervical Neoplasms/virology
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Affiliation(s)
- R Phaëton
- Department of Obstetrics & Gynecology, Albert Einstein College of Medicine, NY, USA
| | - J Gutierrez
- Department of Obstetrics & Gynecology, Albert Einstein College of Medicine, NY, USA
| | - Z Jiang
- Department of Radiology, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461, USA
| | - RG Karabakhtsian
- Department of Pathology, Albert Einstein College of Medicine, NY, USA
| | - J Albanese
- Department of Pathology, Albert Einstein College of Medicine, NY, USA
| | - J Sunkara
- Department of Pathology, Albert Einstein College of Medicine, NY, USA
| | | | - GL Goldberg
- Department of Obstetrics & Gynecology, Albert Einstein College of Medicine, NY, USA
| | - E Dadachova
- Department of Radiology, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461, USA
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17
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Mählmann K, Hamza E, Marti E, Dolf G, Klukowska J, Gerber V, Koch C. Increased FOXP3 expression in tumour-associated tissues of horses affected with equine sarcoid disease. Vet J 2014; 202:516-21. [DOI: 10.1016/j.tvjl.2014.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 09/01/2014] [Accepted: 09/03/2014] [Indexed: 12/19/2022]
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18
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López-Muñoz H, Escobar-Sánchez ML, López-Marure R, Lascurain-Ledesma R, Zenteno E, Hernández-Vazquez JMV, Weiss-Steider B, Sánchez-Sánchez L. Cervical cancer cells induce apoptosis in TCD4+ lymphocytes through the secretion of TGF-β. Arch Gynecol Obstet 2012. [PMID: 23179798 DOI: 10.1007/s00404-012-2621-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE Tumor cells are known to secrete cytokines that modify their microenvironment in order to favor their survival and continuous proliferation. In this work, we evaluated if TGF-β secreted in vitro by cervical cancer cells could interfere with the proliferation and survival of lymphocytes. METHODS Lymphocytes were obtained from peripheral blood of healthy human volunteers, and isolated by density gradient centrifugation and cultured in 96-well plates. Lymphocyte proliferation was induced with phytohemaglutinin and co-cultured with conditioned media (CM) from cervical cancer cell lines, and the inhibition of proliferation was evaluated after 72 h by the incorporated radioactivity and a CFSE-labeling assay. TGF-β quantification on these CM was evaluated by ELISA. Non-apoptotic cellular death was evaluated through disruption of cell membrane integrity by measuring the liberation of lactate dehydrogenase. The apoptosis process was evaluated by annexin-V and active caspase-3. The presence of CD4+ or CD8+ lymphocytes was evaluated by flow cytometry using specific antibodies. RESULTS It was found that the conditioned media from these cells significantly inhibited the proliferation of lymphocytes and induced them to go into apoptosis. Antibodies against TGF-β almost completely blocked this activity, suggesting that this cytokine is responsible for the inhibitory activity. When the induced apoptosis on subpopulations of lymphocytes was evaluated, it was detected that the CD4+ cells were specifically targeted. CONCLUSIONS Cervical cancer cells secrete TGF-β that inhibits lymphocyte proliferation and induces apoptosis in CD4+, but not in CD8+ lymphocytes.
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Affiliation(s)
- Hugo López-Muñoz
- Unidad de Investigación en Diferenciación Celular y Cáncer, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México, 09230 Mexico DF, Mexico.
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19
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Bedoya AM, Jaramillo R, Baena A, Castaño J, Olaya N, Zea AH, Herrero R, Sanchez GI. Location and Density of Immune Cells in Precursor Lesions and Cervical Cancer. CANCER MICROENVIRONMENT 2012; 6:69-77. [PMID: 22290207 DOI: 10.1007/s12307-012-0097-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 01/11/2012] [Indexed: 12/21/2022]
Abstract
Only a small proportion of women infected with Human Papillomavirus (HPV) develop cervical cancer. Host immune response seems to play a role eliminating the viral infection and preventing progression to cancer. Characterization of tumor infiltrating lymphocytes (TILs) in cervical pre-neoplastic lesions and cervical cancer may be helpful to understand the mechanisms that mediate this protection. The aim of this study was to determine if there are differences in the localization and density (cells/mm(2)) of CD8+ T-cells, CD4+ T-cells and Tregs (CD25 + Foxp3+) in cervical pre-neoplastic lesions and cervical cancer. Immunohistochemical analysis of sections of 96 (26 CIN1, 21 CIN2, 25 CIN3, and 24 SCC) samples revealed that regardless of CIN grades, CD8+ T-cells are more abundant than CD4+, CD25+ and Foxp3+ cells in both the stroma and epithelium. There was a higher density of CD8+ cells in the stroma of cervical cancer compared to CIN3 (OR = 4.20, 95% CI 1.2-15), CIN2 (OR = 7.86, 95% CI 1.7-36.4) and CIN1 (OR = 4.25, 95% CI 1.1-17). Studies evaluating whether these cells are recruited before or after cancer progression will be helpful to understand the role of these cells in the natural history of HPV-induced lesions.
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Affiliation(s)
- Astrid M Bedoya
- Grupo Infección y Cáncer, Facultad de Medicina, Universidad de Antioquia, Cra 51D No. 62-29 Lab 283, Medellin, Colombia
- Escuela de Microbiología, Universidad de Antioquia, Medellin, Colombia
| | | | - Armando Baena
- Grupo Infección y Cáncer, Facultad de Medicina, Universidad de Antioquia, Cra 51D No. 62-29 Lab 283, Medellin, Colombia
- Escuela de Microbiología, Universidad de Antioquia, Medellin, Colombia
| | - Jorge Castaño
- Departamento de Patología, Facultad de Medicina, Universidad de Antioquia and Hospital Universitario San Vicente de Paúl, Medellin, Colombia
| | - Natalia Olaya
- Departamento de Patología, Facultad de Medicina, Universidad de Antioquia and Hospital Universitario San Vicente de Paúl, Medellin, Colombia
| | - Arnold H Zea
- Department of Microbiology, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Rolando Herrero
- Prevention and Implementation Group, International Agency for Research on Cancer, Lyon, France
| | - Gloria I Sanchez
- Grupo Infección y Cáncer, Facultad de Medicina, Universidad de Antioquia, Cra 51D No. 62-29 Lab 283, Medellin, Colombia.
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