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Jin T, Park KS, Nam SE, Lim SH, Kim JH, Noh WC, Yoo YB, Park WS, Yun IJ. CTLA4 expression profiles and their association with clinical outcomes of breast cancer: a systemic review. Ann Surg Treat Res 2024; 106:263-273. [PMID: 38725802 PMCID: PMC11076949 DOI: 10.4174/astr.2024.106.5.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/16/2024] [Accepted: 03/03/2024] [Indexed: 05/12/2024] Open
Abstract
Purpose The cytotoxic T-lymphocyte-associated protein 4 (CTLA4) is involved in the progression of various cancers, but its biological roles in breast cancer (BRCA) remain unclear. Therefore, we performed a systematic multiomic analysis to expound on the prognostic value and underlying mechanism of CTLA4 in BRCA. Methods We assessed the effect of CTLA4 expression on BRCA using a variety of bioinformatics platforms, including Oncomine, GEPIA, UALCAN, PrognoScan database, Kaplan-Meier plotter, and R2: Kaplan-Meier scanner. Results CTLA4 was highly expressed in BRCA tumor tissue compared to normal tissue (P < 0.01). The CTLA4 messenger RNA levels in BRCA based on BRCA subtypes of Luminal, human epidermal growth factor receptor 2, and triple-negative BRCA were considerably higher than in normal tissues (P < 0.001). However, the overexpression of CTLA4 was associated with a better prognosis in BRCA (P < 0.001) and was correlated with clinicopathological characteristics including age, T stage, estrogen receptors, progesterone receptors, and prediction analysis of microarray 50 (P < 0.01). The infiltration of multiple immune cells was associated with increased CTLA4 expression in BRCA (P < 0.001). CTLA4 was highly enriched in antigen binding, immunoglobulin complexes, lymphocyte-mediated immunity, and cytokine-cytokine receptor interaction. Conclusion This study provides suggestive evidence of the prognostic role of CTLA4 in BRCA, which may be a therapeutic target for BRCA. Furthermore, CTLA4 may influence BRCA prognosis through antigen binding, immunoglobulin complexes, lymphocyte-mediated immunity, and cytokine-cytokine receptor interaction. These findings help us understand how CTLA4 plays a role in BRCA and set the stage for more research.
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Affiliation(s)
- TongYi Jin
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
| | - Kyoung Sik Park
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Sang Eun Nam
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Seung Hwan Lim
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Jong Hyun Kim
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Woo Chul Noh
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Young Bum Yoo
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
| | - Won Seo Park
- Department of Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Ik Jin Yun
- Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea
- Department of Surgery, Konkuk University Medical Center, Seoul, Korea
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Janardhanan M, Smitha NV, Rajalakshmi G, George A, Koyakutty M, Iyer S. Tumour Microenvironment as a Potential Immune Therapeutic Target for Tongue Cancer Management. J Oral Maxillofac Pathol 2023; 27:382-389. [PMID: 37854897 PMCID: PMC10581303 DOI: 10.4103/jomfp.jomfp_134_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 03/30/2023] [Accepted: 04/13/2023] [Indexed: 10/20/2023] Open
Abstract
Immunotherapy is a promising approach in the management of human cancers and has been proven to provide a durable response in many cancers. It is helpful as an adjuvant therapy for cancers and at present is considered as a fourth pillar supporting surgery, chemotherapy and radiotherapy. In the treatment of oral cancer, immunotherapy is approved in late-stage diseases where surgical resection cannot be carried out or fails, leading to recurrences and metastasis. Evidences suggest that when given as a first-line treatment, it can elicit an immune response that shrinks tumours, which could provide long-term benefit for patients. But unlike the traditional approach which follows the uniform protocol for all oral cancer patients, effective immunotherapy requires a more site-specific personalized approach. The aim of this paper is to review the various immune evasive mechanisms adopted by tumour cells and their relevance as potential targets for immunotherapy in oral tongue squamous cell carcinoma.
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Affiliation(s)
- Mahija Janardhanan
- Department of Oral and Maxillofacial Pathology, Amrita Vishwa Vidyapeetham, Amrita School of Dentistry, Kochi, Kerala, India
| | - NV Smitha
- Department of Pathology, Amrita Vishwa Vidyapeetham, Amrita Institute of Medical Sciences Kochi, Kerala, India
| | - G Rajalakshmi
- Head and Neck Oncology, Amrita Vishwa Vidyapeetham, Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Antony George
- Department of Oral Pathology, MES Dental College, Malappuram, Kerala, India
| | - Manzoor Koyakutty
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Subramania Iyer
- Head and Neck Oncology, Amrita Vishwa Vidyapeetham, Amrita Institute of Medical Sciences, Kochi, Kerala, India
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Liu C, Tong Z, Tan J, Xin Z. Analysis of Treg/Th17 cells in patients with tongue squamous cell carcinoma. Exp Ther Med 2019; 18:2187-2193. [PMID: 31452709 PMCID: PMC6704530 DOI: 10.3892/etm.2019.7814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/27/2019] [Indexed: 12/31/2022] Open
Abstract
The aim of the present study was to analyze the percentage of regulatory T cells (Treg) and T helper cell 17 (Th17) cells in the peripheral blood of patients with tongue squamous cell carcinoma (TSCC) to provide novel insight into the development of immune-targeting therapies for TSCC. Peripheral blood samples were collected from 40 patients with TSCC then the peripheral blood mononuclear cells (PBMCs) and plasma were isolated for flow cytometry, cytometric bead array and reverse transcription-quantitative PCR. Results demonstrated that the percentage of cluster of differentiation (CD)4+ T cells in the peripheral blood of patients with TSCC decreased significantly compared with the control. However, the percentage of Treg and Th17 cells increased significantly compared with the control. The levels of interleukin (IL)-10 and IL-17a increased significantly in patients with TSCC. Expression of IL-10 and IL-17 in the advanced stages of cancer (stage III or IV) were significantly higher compared with the early stages (I and II). The mRNA expression levels of the transcription factors forkhead box protein 3 and RAR-related orphan receptor-γ increased significantly with stage of cancer. The percentage of Treg cells and Th17 cells increased significantly in patients with TSCC suggesting that there was an imbalance between Treg and Th17 cells. In conclusion, altered Treg/Th17 balance in TSCC may promote the disease progression and these results provide a theoretical basis for the development of immunomodulators targeting Treg/Th17.
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Affiliation(s)
- Changfu Liu
- Department of Oral and Maxillofacial Surgery, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Zhou Tong
- Department of Oral and Maxillofacial Surgery, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Jingyu Tan
- Department of Stomatology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Zengxi Xin
- Department of Prosthodontics, The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
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O'Higgins C, Ward FJ, Abu Eid R. Deciphering the Role of Regulatory CD4 T Cells in Oral and Oropharyngeal Cancer: A Systematic Review. Front Oncol 2018; 8:442. [PMID: 30460193 PMCID: PMC6232931 DOI: 10.3389/fonc.2018.00442] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/21/2018] [Indexed: 01/03/2023] Open
Abstract
Background: Recruiting regulatory CD4 T cells (Tregs) into the tumor microenvironment is an important tumor escape mechanism. Diminishing these suppressive cells is therefore one of the targets of cancer immunotherapy. Selective depletion of Tregs has proven successful in enhancing anti-tumor immunity and therapeutic efficacy in multiple tumor types. However, the role of Tregs in oral/oropharyngeal cancers is unclear with conflicting evidence regarding the effect of these suppressive cells on tumor prognosis. In this study, we sought to review the role of Tregs in oral/oropharyngeal cancer with the aim of deciphering the controversy regarding their effect on tumor progression and prognosis. Methods: A systematic review of the literature pertaining to the role of Tregs in oral/oropharyngeal cancer was performed using Scopus, Embase, and PubMed. Forty-five records were deemed eligible and data describing methodology of Treg detection, tumor type, and association with prognosis were extracted. Results: Of the 45 eligible manuscripts accepted for this systematic review, thirty-nine studies reported data from human subjects while the remaining studies focused on animal models. Sixteen studies were carried out using peripheral blood samples, while samples from the tumor site were analyzed in 18 studies and 11 studies assessed both blood and tumor samples. The transcriptional factor, Foxp3, was the most commonly used marker for Treg identification (38/45). The findings of 25 studies suggested that an increase in Tregs in the tumor microenvironment and/or peripheral blood was associated with poorer prognosis. These conclusions were attributed to the suppression of immune responses and the consequent tumor progression. Conversely, nine studies showed an increase in Tregs in peripheral blood and/or tumor microenvironment was related to a favorable prognosis, particularly in the presence of human papilloma virus (HPV), the status of which was only assessed in 11 studies. Conclusions: This review underlines the importance of host immunity in the behavior of oral/oropharyngeal cancer. Furthermore, we report an apparent lack of clarity regarding the true role Tregs play in oral/oropharyngeal cancer progression which could be attributed to inconsistent detection techniques of Tregs. Our results therefore highlight the need for clearer methodologies and more robust phenotyping when defining Tregs.
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Affiliation(s)
- Caoimhín O'Higgins
- Institute of Dentistry, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, Scotland
| | - Frank J Ward
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, Scotland
| | - Rasha Abu Eid
- Institute of Dentistry, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, Scotland.,Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, Scotland
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Li K, Huang SH, Lao XM, Yang L, Liao GQ, Liang YJ. Interaction of cancer cell-derived Foxp3 and tumor microenvironment in human tongue squamous cell carcinoma. Exp Cell Res 2018; 370:643-652. [PMID: 30040923 DOI: 10.1016/j.yexcr.2018.07.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 02/07/2023]
Abstract
The forkhead transcription factor, Foxp3, has been proved essential for differentiation and activation of regulatory T cells (Tregs). Recently, Foxp3 expression in tumor cells (cancer cell-derived Foxp3) has gained increasing interest, but the function has yet to be confirmed. In the current investigation, we identified the interaction of cancer cell-derived Foxp3 and tumor microenvironment in human tongue squamous cell carcinoma(TSCC) by various in vitro methods. We detected cancer cell-derived Foxp3 was closely associated with the infiltration of Foxp3 + lymphocytes in TSCC lesions using immunohistochemical staining. The cytokines secretion (IFN-γ, TGFβ, IL-2, IL-6, IL-1β, IL-10, IL-8, IL-17, IL-23) of PBMC and differentiation of CD4 +T cells were modulated by the expression of Foxp3 in TSCC, shown by ELISA and flow cytometry. As feedback, increasing TGFβ and decreasing IL-17 further up-regulated cancer cell-derived Foxp3. Furthermore, CHIP on chip assay showed that both TGFβ and IL-17 decreased the number of Foxp3-binding genes in TSCC. GO and pathway analysis suggested that, treated with TGFβ or Th17, Foxp3-binding genes were inclined to the negative regulation of TGFβ signal pathway. Taken together, this study showed cancer cell-derived Foxp3 contributed to Tregs expansion in TSCC microenvironment with positive and negative feedbacks.
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Affiliation(s)
- Kan Li
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University,56th Lingyuanxi Road, Guangzhou, Guangdong 510055, China; Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou 510080, Guangdong, China
| | - Si-Hui Huang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University,56th Lingyuanxi Road, Guangzhou, Guangdong 510055, China; Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou 510080, Guangdong, China
| | - Xiao-Mei Lao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University,56th Lingyuanxi Road, Guangzhou, Guangdong 510055, China; Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou 510080, Guangdong, China
| | - Le Yang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University,56th Lingyuanxi Road, Guangzhou, Guangdong 510055, China; Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou 510080, Guangdong, China
| | - Gui-Qing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University,56th Lingyuanxi Road, Guangzhou, Guangdong 510055, China; Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou 510080, Guangdong, China.
| | - Yu-Jie Liang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University,56th Lingyuanxi Road, Guangzhou, Guangdong 510055, China; Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou 510080, Guangdong, China.
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Chen TH, Zhang YC, Tan YT, An X, Xue C, Deng YF, Yang W, Yuan X, Shi YX. Tumor-infiltrating lymphocytes predict prognosis of breast cancer patients treated with anti-Her-2 therapy. Oncotarget 2018; 8:5219-5232. [PMID: 28029650 PMCID: PMC5354903 DOI: 10.18632/oncotarget.14124] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 11/21/2016] [Indexed: 01/01/2023] Open
Abstract
PURPOSE Infiltration of tumor associated lymphocytes and count of its different phenotypes are potentially new independent predictor of prognosis in breast cancer. However, research related to it is less reported in breast cancer patients treated with anti-Her-2 therapy. Thus, we evaluated the relationship between survival and tumor infiltrating lymphocytes including its different phenotypes in tumors of such patients. METHODS Between 1999 and 2010, 98 patients diagnosed with primary breast cancer and treated with anti-Her-2 therapy at Sun-Yat-Sen University Cancer Center were included in the study. Biopsy specimens were collected post-operation but before chemotherapy. Tumor infiltrating lymphocytes as well as its FOXP3+, CD68+, IL-17+ phenotypes in both intratumoral and stromal sites and expression of FOXP3 in cancer cells were assessed. RESULTS Median follow-up time of 98 patients was 83.3 months (range 7.4-201 months). It suggested that patients with high stromal infiltration of TILs, lower count of FOXP3+ Tregs and CD68+ Mφ in stromal site, and high expression of FOXP3 in cancer cells had longer survival of OS. In multivariate Cox regression analysis, high count of intratumoral CD68+ Mφ [HR: 2.70 (1.00-7.31); p=0.050] and high expression of FOXP3 in cancer cells [HR: 0.29 (0.09-0.91); p=0.034] were independent prognostic factors for overall survival. CONCLUSIONS Tumor infiltrating lymphocytes as well as its FOXP3+, CD68+ phenotypes in stromal site, and expression of FOXP3 in cancer cells were significantly associated with OS, suggesting that they can be used as important pathological factor predicting prognosis of breast cancer patients treated with anti-Her-2 therapy.
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Affiliation(s)
- Tan-Huan Chen
- Department of Medical Oncology, Affiliated Hui Zhou Municipal Central Hospital & Training Base for Masters of Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Huicheng District, Huizhou, Guangdong 516000, P. R. China.,Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Ying-Chun Zhang
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Yu-Ting Tan
- Department of Radiotherapy, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Xin An
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Cong Xue
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Ying-Fei Deng
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Wei Yang
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
| | - Xia Yuan
- Department of Medical Oncology, Affiliated Hui Zhou Municipal Central Hospital & Training Base for Masters of Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Huicheng District, Huizhou, Guangdong 516000, P. R. China
| | - Yan-Xia Shi
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong 510000, P.R. China
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Soh KT, Tario JD, Colligan S, Maguire O, Pan D, Minderman H, Wallace PK. Simultaneous, Single-Cell Measurement of Messenger RNA, Cell Surface Proteins, and Intracellular Proteins. CURRENT PROTOCOLS IN CYTOMETRY 2016; 75:7.45.1-7.45.33. [PMID: 26742656 PMCID: PMC5556691 DOI: 10.1002/0471142956.cy0745s75] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Nucleic acid content can be quantified by flow cytometry through the use of intercalating compounds; however, measuring the presence of specific sequences has hitherto been difficult to achieve by this methodology. The primary obstacle to detecting discrete nucleic acid sequences by flow cytometry is their low quantity and the presence of high background signals, rendering the detection of hybridized fluorescent probes challenging. Amplification of nucleic acid sequences by molecular techniques such as in situ PCR have been applied to single-cell suspensions, but these approaches have not been easily adapted to conventional flow cytometry. An alternative strategy implements a Branched DNA technique, comprising target-specific probes and sequentially hybridized amplification reagents, resulting in a theoretical 8,000- to 16,000-fold increase in fluorescence signal amplification. The Branched DNA technique allows for the quantification of native and unmanipulated mRNA content with increased signal detection and reduced background. This procedure utilizes gentle fixation steps with low hybridization temperatures, leaving the assayed cells intact to permit their concomitant immunophenotyping. This technology has the potential to advance scientific discovery by correlating potentially small quantities of mRNA with many biological measurements at the single-cell level.
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Affiliation(s)
- Kah Teong Soh
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
| | - Joseph D. Tario
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
| | - Sean Colligan
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
| | - Orla Maguire
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
| | - Dalin Pan
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
| | - Hans Minderman
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
| | - Paul K. Wallace
- Roswell Park Cancer Institute, Department of Flow and Image Cytometry, Elm & Carlton Street, Buffalo, New York 14263
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Ma S, Wang Q, Ma X, Wu L, Guo F, Ji H, Liu F, Zhao Y, Qin G. FoxP3 in papillary thyroid carcinoma induces NIS repression through activation of the TGF-β1/Smad signaling pathway. Tumour Biol 2015; 37:989-98. [PMID: 26264613 DOI: 10.1007/s13277-015-3848-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 07/24/2015] [Indexed: 12/13/2022] Open
Abstract
Forkhead box P3 (FoxP3) expression in papillary thyroid carcinoma (PTC) is associated with resistance to radioiodine treatment. The sodium iodine symporter (NIS) is a plasma membrane glycoprotein, the repression of which may render the tumor refractive to radioiodine therapy. In this study, samples from 90 PTCs as well as 40 normal thyroid tissues were examined for FoxP3 and NIS by immunohistochemistry and real-time PCR. We found that FoxP3 was associated with decreased NIS expression. Lentiviral-mediated FoxP3-overexpressing cells were constructed and real-time PCR and western blotting were performed to evaluate the expression of NIS. Meanwhile, key members of the transforming growth factor-β1 (TGF-β1) pathway were explored by ELISA and immunofluorescence and a neutralizing TGF-β1 antibody was used to block activity. In vitro, FoxP3 overexpression significantly reduced NIS transcript and protein levels and the TGF-β1 pathway was activated. However, treatment with neutralizing TGF-β1 antibody partially abrogated FoxP3-induced NIS repression. These findings suggest that FoxP3 could compromise NIS expression by inducing TGF-β1.
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Affiliation(s)
- Siyuan Ma
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Qingzhu Wang
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xiaojun Ma
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Lina Wu
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Feng Guo
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Hongfei Ji
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Fei Liu
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yanyan Zhao
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Guijun Qin
- Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, 40 Daxue Road, Zhengzhou, 450052, China.
- Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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